Pipe fitting punching tool for machining horseshoe-shaped special-shaped holes

Abstract

The utility model provides a pipe fitting punching tool for processing a horseshoe-shaped special-shaped hole, which comprises an upper die device and a lower die device, the upper die device consists of a right side boss, a left side boss and a punch, the lower die device consists of a support cylinder, a vertical plate and a base, and a pipe fitting to be processed is sleeved on the support cylinder. When the pipe fitting punching tool is used, the upper die device and the lower die device are fixedly clamped on pressure equipment, a pipe fitting is sleeved on a supporting cylinder of the lower die device, the upper die device moves downwards, two horseshoe-shaped special-shaped holes which are symmetrical up and down in the pipe fitting are respectively punched through the punches, the pipe fitting is rotated, and then the pipe fitting is punched. And the rest horseshoe-shaped special-shaped holes in the pipe fitting are continuously punched. By using the tool, the process machining mode can be optimized, and the labor intensity is greatly reduced; equipment damage is reduced, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, specifically relates to a pipe punching frock for processing horseshoe-shaped special-shaped holes. BACKGROUND

[0002] In the field of mechanical manufacturing, for the hole on the pipe, especially the processing of special-shaped hole, the common processing mode is to use milling machine equipment to process, and the operation method is to first clamp and fix the pipe on the milling machine workbench, and then use the milling cutter to mill the special-shaped hole. Figure 1a and 1b As shown in the drawings, one end of the pipe with horseshoe-shaped special-shaped hole is processed with six horseshoe-shaped special-shaped holes, so the pipe needs to be clamped and positioned for six times, the labor intensity of processing is large, the milling hole processing time of the milling machine is long, the equipment loss is large, and the production efficiency is low. UTILITY MODEL CONTENTS

[0003] (I) technical problem to be solved

[0004] The utility model provides a pipe punching frock for processing horseshoe-shaped special-shaped hole to solve the technical problems of long processing time, large manual labor intensity, large equipment loss and low production efficiency when the existing pipe processes horseshoe-shaped special-shaped hole.

[0005] (II) technical scheme

[0006] In order to solve the above technical problem, the utility model provides a pipe punching frock for processing horseshoe-shaped special-shaped hole, and the pipe punching frock comprises an upper die device and a lower die device, wherein,

[0007] The upper die device is composed of a right side boss, a left side boss and a punch, wherein the main body part of the right side boss is provided with a semicircular step part at the bottom, the main body part is processed with a punch mounting groove penetrating along the center line direction, and a through hole perpendicular to the punch mounting hole; the structure of the left side boss is left-right symmetrical with the right side boss; the punching surface of the punch has a horseshoe-shaped cross section, and a through hole perpendicular to the center line direction is processed on the punch; after the right side boss and the left side boss are combined, the two punch mounting grooves form a punch mounting hole, the upper segment of the punch is inserted into the punch mounting hole, and the bolts pass through the through holes of the right side boss, the left side boss and the punch to fixedly connect the right side boss, the left side boss and the punch;

[0008] The lower die device is composed of a supporting cylinder, a vertical plate and a base, wherein the vertical plate is vertically welded to the upper end face of the base; the rear end face of the supporting cylinder is welded and fixed with the front end face of the vertical plate, the rear end top of the supporting cylinder is processed with a horseshoe-shaped groove matched with the cross section shape of the punch, and the pipe to be processed is sleeved on the supporting cylinder.

[0009] Further, the main body part of the right side boss is 110mm high and 50mm wide.

[0010] Further, the height of the semicircular stepped portion is 20 mm, and the radius is 65 mm.

[0011] Further, the diameter of the through hole is 11 mm.

[0012] Further, the punch has a length of 210 mm, a width of 45 mm, and a thickness of 20 mm, and one end of the punch having a horse-shoe shaped cross section is provided with a circular arc having a radius of 10 mm.

[0013] Further, the bolt is an M10 general bolt.

[0014] Further, the vertical plate has a cuboid structure of 200 mm x 200 mm x 20 mm, and the base has a cuboid structure of 300 mm x 300 mm x 10 mm.

[0015] Further, a triangular rib plate as a reinforcing rib is welded between the rear end surface of the vertical plate and the upper end surface of the base.

[0016] Further, the triangular rib plate has an equilateral right triangle structure, and the two equal sides have a length of 150 mm and a thickness of 20 mm.

[0017] Further, the support cylinder has a diameter of 70 mm and a length of 120 mm.

[0018] (Three) beneficial effects

[0019] The utility model provides a pipe fitting punching tool for processing horse-shoe shaped special-shaped hole, including upper die device and lower die device, upper die device is by right side boss, left side boss and punch, lower die device is by support cylinder, vertical plate and base, and the pipe fitting to be processed is sleeved on the support cylinder. The pipe fitting punching tool of the utility model is fixed and clamped on the pressure equipment when using, the pipe fitting is sleeved on the support cylinder of lower die device, upper die device moves downward, punches respectively two horse-shoe shaped special-shaped holes symmetrical on the pipe fitting through the punch, rotates the pipe fitting, continues to stamp out the remaining horse-shoe shaped special-shaped hole of the pipe fitting. Using this tool can optimize the process processing mode, greatly reduce the labor intensity, reduce the equipment damage, improve the production efficiency. DRAWINGS

[0020] Figure 1a It is the front view of pipe fitting with horse-shoe shaped special-shaped hole, Figure 1b It is the plan view;

[0021] Figure 2a It is the front view of upper die device of the utility model, Figure 2b It is the plan view;

[0022] Figure 3a It is the front view of right side boss of the utility model,Figure 3b This is a top view;

[0023] Figure 4a This is a front view of the punch of this utility model. Figure 4b This is a top view;

[0024] Figure 5a This is a front view of the lower mold device of this utility model. Figure 5b This is a top view;

[0025] Figure 6a This is a top view of the supporting cylinder of this utility model. Figure 6b This is a side view;

[0026] Figure 7 This is a top view of the punching process of the pipe punching fixture of this utility model. Detailed Implementation

[0027] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0028] This embodiment proposes a pipe punching fixture for processing horseshoe-shaped irregular holes. The pipe punching fixture mainly includes an upper die device and a lower die device.

[0029] like Figure 2a and 2b As shown, the upper die assembly consists of a right-side boss 1, a left-side boss 2, and a punch 3. The specific structure of the right-side boss 1 is as follows: Figure 3a and 3b As shown, the main body of the right boss 1 has a height of 110mm and a width of 50mm. The bottom of the main body has a semi-circular stepped section with a height of 20mm and a radius of 65mm. The main body is machined with a punch mounting groove running along the centerline and two through holes with a diameter of 11mm perpendicular to the punch mounting holes. The structure of the left boss 2 is symmetrical to that of the right boss 1.

[0030] The specific structure of punch 2 is as follows Figure 4a and 4b As shown, punch 2 is 210mm long, 45mm wide, and 20mm thick, with a horseshoe-shaped cross-section and a 10mm radius arc at one end. Punch 2 has two through holes with a diameter of 11mm, perpendicular to the centerline.

[0031] After the right side boss 1 and the left side boss 2 are enclosed, the two punch mounting grooves form a punch mounting hole, the upper section of the punch 3 is inserted into the punch mounting hole, and two M10 universal bolts pass through the through holes with a diameter of 11 mm on the right side boss 1, the left side boss 2 and the punch 3, so as to fixedly connect the right side boss 1, the left side boss 2 and the punch 3. By replacing punches 3 of different sizes, a plurality of special-shaped holes with a width of ≤25 mm and a length of ≤25 mm can be punched.

[0032] As shown in Figure 5a and 5b , the lower die device is composed of a support cylinder 4, a vertical plate 5, a triangular rib plate 6 and a base 7. Among them, the vertical plate 5 has a cuboid structure of 200mm×200mm×20mm, the base 7 has a cuboid structure of 300mm×300mm×10mm, the triangular rib plate 6 has an equilateral right triangle structure, both the equal sides are 150mm long and the thickness is 20mm. The vertical plate 5 is vertically welded to the upper end face of the base 7, and the triangular rib plate 6 as a reinforcing rib is welded between the rear end face of the vertical plate 5 and the upper end face of the base 7. The support cylinder 4 has a specific structure as shown in Figure 6a and 6b , with a diameter of 70mm and a length of 120mm, the rear end face of the support cylinder 4 is fixedly welded to the front end face of the vertical plate 5, the rear end top of the support cylinder 4 is processed with a horseshoe-shaped groove matched with the cross-sectional shape of the punch 3, and the pipe to be processed is sleeved on the support cylinder 4. By welding the support cylinder 4, the vertical plate 5, the triangular rib plate 6 and the base 7 into an integrated structure, the stability and firmness of the lower die device can be guaranteed when fully punching the horseshoe-shaped special-shaped hole on the pipe.

[0033] The use method of the pipe punching tool of the utility model is as shown in Figure 7 , mainly includes:

[0034] S1. The upper die device and the lower die device are fixedly clamped on the pressure equipment.

[0035] S2. The pipe is sleeved on the support cylinder 4 of the lower die device, the upper die device is moved downward, and the two symmetrical horseshoe-shaped special-shaped holes on the pipe are punched by the punch 3.

[0036] S3. Rotate the pipe, and continue to punch out the remaining four horseshoe-shaped special-shaped holes on the pipe.

[0037] The pipe punching tool of the utility model is combined with the closed single-point pressure equipment for machining, and the purpose of special-shaped hole punching forming can be achieved. The die closing height is controlled by the pressure equipment, and the punching size precision of the special-shaped hole can be guaranteed.

[0038] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and deformations can be made, and these improvements and deformations should also be considered as the protection scope of the present application.

Claims

1. A pipe piercing tool for machining a horse-shoe shaped profile hole, characterized in that, The pipe punching tool comprises an upper die device and a lower die device. The upper die device is composed of a right boss, a left boss and a punch; the main body of the right boss is provided with a semicircular step at the bottom, a punch mounting slot penetrating through the center line direction is processed on the main body, and a through hole perpendicular to the punch mounting hole is also processed on the main body; the structure of the left boss is symmetrical to the right boss; the punching surface of the punch has a horseshoe-shaped cross section, and a through hole perpendicular to the center line direction is processed on the punch; after the right boss and the left boss are combined, the two punch mounting slots form a punch mounting hole, the upper segment of the punch is inserted into the punch mounting hole, and the through holes on the right boss, the left boss and the punch are penetrated by a bolt to fixedly connect the right boss, the left boss and the punch. The lower die device is composed of a support cylinder, a vertical plate and a base; the vertical plate is vertically welded to the upper end surface of the base; the rear end surface of the support cylinder is fixedly welded to the front end surface of the vertical plate, a horseshoe-shaped slot matching the cross section of the punch is processed on the top of the rear end of the support cylinder, and the pipe to be processed is sleeved on the support cylinder.

2. The pipe punching tooling for machining a horse-shoe shaped profile hole according to claim 1, wherein, The height of the main body of the right boss is 110 mm, and the width is 50 mm.

3. The tube piercing tooling for machining a horse-shoe shaped profile hole according to claim 2, wherein, The height of the semicircular step is 20 mm, and the radius is 65 mm.

4. The tube piercing tooling for machining a horse-shoe shaped profile hole according to claim 1, wherein, The diameter of the through hole is 11 mm.

5. The tube piercing tooling for machining a horse-shoe shaped profile hole according to claim 1, wherein, The length of the punch is 210 mm, the width is 45 mm, and the thickness is 20 mm; the end with the horseshoe-shaped cross section is provided with a circular arc with a radius of 10 mm.

6. The tube piercing tooling for machining a horse-shoe shaped contoured hole according to claim 1, wherein, The bolt is an M10 general bolt.

7. The tube piercing tooling for machining a horse-shoe shaped contoured hole according to claim 1, wherein, The vertical plate has a cuboid structure of 200 mm×200 mm×20 mm, and the base has a cuboid structure of 300 mm×300 mm×10 mm.

8. The tube piercing tooling for machining a horse-shoe shaped contoured hole according to claim 1, wherein, A triangular rib plate serving as a reinforcing rib is welded between the rear end surface of the vertical plate and the upper end surface of the base.

9. The tube piercing tooling for machining a horse-shoe shaped contoured hole according to claim 8, wherein, The triangular rib plate has an equilateral right triangle structure, the two equal sides are 150 mm long, and the thickness is 20 mm.

10. The tube piercing tooling for machining a horse-shoe shaped contoured hole according to claim 1, wherein, The diameter of the support cylinder is 70 mm, and the length is 120 mm.

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