Cold bending punch

1、 Overview:

Cold bending punch is a testing tool for conducting steel bar bending tests. It consists of 32 pieces and can meet the testing requirements for cold bending bending of I-IV steel with diameters ranging from 6 to 32. The bending center of large items is 3-144, and the bending center of small items is 6-128

2. Technical specifications

1. Scope of application: Meet the cold bending and bending test requirements of I-IV steel with a diameter of 6 to 32

2. Weight: total weight 52.1Kg;

; Net weight 47Kg, large box weight 43.9Kg; Small box weight 8.2Kg

3. Number of pieces: 32 pieces

4. Packaging box size: Large box size L * W * H=470 * 350 * 120

Small box size L * W * H=250 * 230 * 125

Attachment: Self inspection and verification method for steel bar cold bending punch

1. Technical requirements

1. Steel connector body: The upper side of the connecting rod has a screw hole, and the middle of the lower bottom has a dovetail groove

2、 Steel transition piece: There is a dovetail block in the middle of the upper top surface. There is a dovetail groove in the middle of the lower bottom surface

3、 Various diameters of bent cores with dovetail blocks made of steel: 80mm in length, with diameters of 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 30mm, 36mm, 42mm, 48mm, 50mm, 54mm, 56mm, 60mm, 64mm, 66mm, 70mm, 72mm, 75mm, 80mm, 90mm, 100mm, 110mm, 112mm, 120mm, 125mm, 128mm, 130mm, 144mm, 160mm, 168mm, 180mm, 192mm

2. Verification items and conditions for steel bar cold bending punch

1. Verification items

(1) Appearance.

(2) Size

2、 Steel bar cold bending punch calibration tool

(1) Steel ruler: measuring range of 300mm, division value of 1mm

(2) Vernier caliper: measuring range of 300mm, division value of 0.02mm

3. Verification method for steel bar cold bending punch

1. Check visually and by hand whether it is smooth and flat.

2、 Can the steel connector head be firmly installed on the material testing machine with good performance

3、 Are the dovetail blocks and dovetail grooves too tight or too loose

4、 Measure the length of each bent core with a steel ruler

5、 Measure the diameter of each bent core with a vernier caliper

IV. Verification Result Processing

If all verification items meet the technical requirements, they are considered qualified.

Fifth, the verification cycle, records, and certificates for steel bar cold bending punches

The verification cycle is 12 months.