Auxiliary punching tool special for punching machine and suitable for special-shaped workpiece

Abstract

The utility model discloses an auxiliary punching tool special for a punching machine and suitable for a special-shaped workpiece, and relates to the technical field of punching machine auxiliary equipment. The auxiliary punching tool comprises a first installation frame, a rotary driving assembly is fixedly installed in the first installation frame, and the driving end of the rotary driving assembly is in transmission connection with a rotary transmission assembly; the output end of the rotating transmission assembly is in transmission connection with a side face clamping driving assembly. According to the utility model, the rotary driving component drives the rotary transmission component to work, so that the driving block drives the second mounting frame to horizontally slide, the six workpiece side surface positioners are attached to the side surface of the prismatic table shaped special-shaped workpiece, and at the moment, the attaching surfaces of the six workpiece side surface positioners are parallel to the side surface of the prismatic table shaped special-shaped workpiece; and the prismatic table type special-shaped workpiece can be accurately positioned and clamped, so that the condition that the special-shaped workpiece deviates and shakes in the subsequent machining process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of punch press auxiliary equipment technology, and in particular to a special auxiliary punching fixture for punch presses suitable for irregularly shaped workpieces. Background Technology

[0002] A dedicated punching fixture for punch presses is an auxiliary device specially designed and manufactured using high-strength, wear-resistant materials, based on the working characteristics of punch presses and the requirements of punching processes. Through scientific structural design and reasonable functional layout, it can accurately position the workpiece, optimize the punching pressure transmission path, effectively improve punching efficiency, ensure hole position accuracy and quality, and reduce safety risks caused by non-standard manual operation. It can be widely adapted to various punching equipment to meet the diverse punching processing needs of workpieces of different shapes and sizes.

[0003] For example, the punching tool for a punch press disclosed in Chinese Patent Publication No. CN215941196U includes a worktable, a No. 1 baffle is provided on one side of the upper end of the worktable, and a No. 1 slide groove is provided on both sides of the upper end of the worktable and below the No. 1 baffle. A slider is slidably installed in both No. 1 slide grooves, and the top of the slider is fixedly connected to the bottom of the No. 1 baffle.

[0004] In industrial machining scenarios, existing punching fixtures face positioning and clamping challenges when punching the top surface of frustum-shaped workpieces. Conventional top-surface-based positioning and clamping methods are unsuitable, necessitating the use of side-based positioning and clamping solutions. However, the side of the frustum is not parallel to the clamping surface of the positioning fixture, resulting in a lack of a stable supporting reference surface for the workpiece during clamping. This leads to uneven force distribution and displacement during the punching process, consequently affecting machining accuracy and yield. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the side of the frustum-shaped workpiece is not parallel to the clamping surface of the positioning fixture, which leads to the lack of a stable support reference surface for the workpiece during clamping and the easy displacement due to uneven force during the punching process. Therefore, this invention proposes a special auxiliary punching fixture for punching presses that is suitable for irregular workpieces.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a special auxiliary punching fixture for punching presses suitable for irregularly shaped workpieces, comprising a first mounting frame, a rotary drive assembly fixedly mounted inside the first mounting frame, a rotary transmission assembly driven by a rotary transmission assembly at the drive end of the rotary drive assembly, and a side clamping drive assembly driven by a rotary transmission assembly at the output end of the rotary transmission assembly. The side clamping drive assembly includes a drive chamber, a lead screw, a drive block, a second mounting frame, and a workpiece side locator. One end of the lead screw is driven by a drive chamber and threadedly connected to the drive block. The second mounting frame is fixedly mounted on one end of the drive block. The workpiece side locator is located on one side of one end of the second mounting frame. A platform is located directly above the rotary transmission assembly.

[0007] Preferably, the rotary drive assembly includes a drive motor and a speed changer, with the output end of the drive motor being connected to the input end of the speed changer, and the output end of the speed changer being connected to the input end of the rotary drive assembly.

[0008] Preferably, the rotary transmission assembly includes a third mounting bracket, a first transmission shaft, a first transmission gear, a second transmission gear, a second transmission shaft, and a mounting support ring. One end of the first transmission shaft movably passes through the center of the third mounting bracket. The first transmission gear is fixedly installed at the other end of the first transmission shaft. The outer side of the first transmission gear meshes with the outer side of the second transmission gear. The second transmission gear is fixedly installed at one end of the second transmission shaft. The other end of the second transmission shaft is fixedly connected to one end of the lead screw.

[0009] Preferably, the interior of the mounting support ring has several mounting grooves arranged in a ring, and the second drive shaft moves through the interior of the mounting grooves.

[0010] Preferably, the workpiece side locator includes a locating cylinder, a mounting block, and a side locating plate. The two locating cylinders are fixedly installed on one side of the mounting block, and the side locating plate is fixedly installed on the other side of the mounting block.

[0011] Preferably, two positioning rods are fixedly installed on one side of one end of the second mounting bracket, and one end of the positioning rod is movably engaged inside the positioning cylinder.

[0012] Preferably, a flexible pad is fixedly adhered to one side of the side positioning plate.

[0013] Preferably, guide rods are symmetrically fixedly installed inside the drive compartment, and the guide rods move through the interior of the drive block.

[0014] Preferably, a support base is fixedly installed at one end of the drive compartment, and one end of the support base is fixedly installed on one side of the platform.

[0015] Preferably, the stage is a circular plate.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, the rotary drive assembly drives the rotary transmission assembly to work, so that the drive block drives the second mounting bracket to slide horizontally, and the six workpiece side locators are attached to the side of the frustum-shaped workpiece. At this time, the contact surface of the six workpiece side locators is parallel to the side of the frustum-shaped workpiece, which can accurately position and clamp the frustum-shaped workpiece, ensuring that the irregular parts will not shift or shake during subsequent processing.

[0018] 2. In this utility model, by pulling the positioning rod out of the inside of the positioning cylinder and replacing it with the corresponding workpiece side positioning device, the workpiece side positioning device can be adapted to the side of the frustum, improving the positioning effect, and without occupying a large processing space, thus reserving sufficient punching space for the punching equipment. Attached Figure Description

[0019] Figure 1 This utility model presents a three-dimensional structural diagram of a special auxiliary punching fixture for punching presses suitable for irregularly shaped workpieces;

[0020] Figure 2 This utility model provides a schematic diagram illustrating the connection relationship between the drive chamber and the worktable in a special auxiliary punching fixture for punching presses suitable for irregularly shaped workpieces.

[0021] Figure 3 This utility model provides a schematic diagram of the transmission relationship between the rotary drive component and the rotary transmission component in a special auxiliary punching fixture for punching presses suitable for irregularly shaped workpieces.

[0022] Figure 4 This utility model presents a three-dimensional structural diagram of a side clamping drive assembly in a punching tooling for punching machines that is suitable for irregularly shaped workpieces.

[0023] Figure 5 This utility model presents a schematic diagram illustrating the connection relationship between the No. 2 mounting bracket and the workpiece side locator in a special auxiliary punching fixture for punching presses suitable for irregularly shaped workpieces.

[0024] Legend: 1. Mounting bracket No. 1; 2. Rotary drive assembly; 21. Drive motor; 22. Gearbox; 3. Rotary transmission assembly; 31. Mounting bracket No. 3; 32. Drive shaft No. 1; 33. Drive gear No. 1; 34. Drive gear No. 2; 35. Drive shaft No. 2; 36. Mounting support ring; 4. Side clamping drive assembly; 41. Drive chamber; 411. Guide rod; 42. Lead screw; 43. Drive block; 44. Mounting bracket No. 2; 441. Positioning rod; 45. Workpiece side positioner; 451. Positioning cylinder; 452. Mounting block; 453. Side positioning plate; 5. Stage. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a special auxiliary punching fixture for punching presses suitable for irregularly shaped workpieces. It includes a first mounting bracket 1, with a rotary drive assembly 2 fixedly mounted inside. The drive end of the rotary drive assembly 2 is connected to a rotary transmission assembly 3, and the output end of the rotary transmission assembly 3 is connected to a side clamping drive assembly 4. The side clamping drive assembly 4 includes a drive chamber 41, a lead screw 42, a drive block 43, a second mounting bracket 44, and a workpiece side locator 45. One end of the lead screw 42 is connected to the inside of the drive chamber 41, and the lead screw 42 is threaded into the inside of the drive block 43. The second mounting bracket 44 is fixedly mounted on one end of the drive block 43. The workpiece side locator 45 is located on one side of one end of the second mounting bracket 44. A platform 5 is located directly above the rotary transmission assembly 3. The rotary drive assembly 2 includes a drive motor 21 and a speed reducer 22. The output end of the drive motor 21 is connected to the input end of the speed reducer 22. The output end of the transmission 22 is connected to the input end of the rotary transmission assembly 3. The rotary transmission assembly 3 includes a third mounting bracket 31, a first transmission shaft 32, a first transmission gear 33, a second transmission gear 34, a second transmission shaft 35, and a mounting support ring 36. One end of the first transmission shaft 32 is movably inserted through the center of the third mounting bracket 31. The first transmission gear 33 is fixedly installed at the other end of the first transmission shaft 32. The outer side of the first transmission gear 33 meshes with the outer side of the second transmission gear 34. The second transmission gear 34 is fixedly installed at one end of the second transmission shaft 35. The other end of the second transmission shaft 35 is fixedly connected to one end of the lead screw 42. The mounting support ring 36 has several mounting grooves arranged in a ring inside. The second transmission shaft 35 movably passes through the inside of the mounting grooves. Guide rods 411 are symmetrically fixedly installed inside the drive chamber 41. The guide rods 411 movably pass through the inside of the drive block 43.

[0028] The specific settings and functions of this embodiment are described below. The frustum-shaped workpiece is placed above the stage 5. Then, the drive motor 21 drives the speed changer 22 to work. The speed changer 22 first drives the first transmission shaft 32 to rotate. Under the transmission of the first transmission gear 33 and the second transmission gear 34, it drives the six second transmission shafts 35 to rotate, thereby driving the lead screw 42 to rotate. This causes the drive block 43 to drive the second mounting bracket 44 to slide horizontally, so that the six workpiece side locators 45 are attached to the side of the frustum-shaped workpiece. At this time, the contact surface of the six workpiece side locators 45 is parallel to the side of the frustum-shaped workpiece, which can accurately position and clamp the frustum-shaped workpiece, ensuring that the irregular parts will not shift or shake during subsequent processing.

[0029] Example 2: Figure 1 - Figure 5 As shown, the auxiliary punching fixture for punching presses of this utility model, suitable for irregularly shaped workpieces, includes a first mounting bracket 1. A rotary drive assembly 2 is fixedly installed inside the first mounting bracket 1. The drive end of the rotary drive assembly 2 is driven by a rotary transmission assembly 3. The output end of the rotary transmission assembly 3 is driven by a side clamping drive assembly 4. The side clamping drive assembly 4 includes a drive chamber 41, a lead screw 42, a drive block 43, a second mounting bracket 44, and a workpiece side locator 45. One end of the lead screw 42 is driven by the interior of the drive chamber 41, and the lead screw 42 is threaded into the interior of the drive block 43. The second mounting bracket 44 is fixedly installed at one end of the drive block 43, and the workpiece side locator 45 is located at the second mounting bracket 41. On one side of one end of the mounting bracket 44, directly above the rotary transmission assembly 3, there is a platform 5. The workpiece side locator 45 includes a positioning cylinder 451, a mounting block 452, and a side positioning plate 453. Two positioning cylinders 451 are fixedly installed on one side of the mounting block 452, and the side positioning plate 453 is fixedly installed on the other side of the mounting block 452. Two positioning rods 441 are fixedly installed on one side of one end of the second mounting bracket 44. One end of the positioning rod 441 is movably engaged inside the positioning cylinder 451. A flexible pad is fixedly adhered to one side of the side positioning plate 453. A support base is fixedly installed on one end of the drive chamber 41. One end of the support base is fixedly installed on one side of the platform 5. The platform 5 is a circular plate.

[0030] The overall effect of this embodiment is that when the side area of ​​the truncated pyramidal workpiece to be positioned and clamped is small, the positioning rod 441 can be pulled out from the inside of the positioning cylinder 451 and the corresponding workpiece side locator 45 can be replaced, so that the workpiece side locator 45 can be adapted to the side of the pyramid, improving the positioning effect, and without occupying a large processing space, leaving sufficient punching space for the punching equipment; by designing the platform 5 as a circular plate, the purpose is to adapt to the side clamping drive assembly 4, so that multiple sets of side clamping drive assemblies 4 can be compactly arranged on the side of the platform 5 to form a concentric circle positioning array, improving the stability of single clamping.

[0031] The method of use and working principle of this device: Place the frustum-shaped workpiece on the platform 5. Then, drive motor 21 drives speed changer 22. Speed ​​changer 22 first drives the first transmission shaft 32 to rotate. Under the transmission of the first transmission gear 33 and the second transmission gear 34, it drives the six second transmission shafts 35 to rotate, thereby driving the lead screw 42 to rotate. This causes the drive block 43 to drive the second mounting bracket 44 to slide horizontally, so that the six workpiece side locators 45 are attached to the side of the frustum-shaped workpiece. At this time, the contact surface of the six workpiece side locators 45 is parallel to the side of the frustum-shaped workpiece, which can accurately position and clamp the frustum-shaped workpiece.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A special-purpose auxiliary punching tool for a punch press suitable for a profiled workpiece, comprising a mounting frame (1), characterized in that: The interior of the first mounting frame (1) is fixedly provided with a rotary driving assembly (2), the driving end of the rotary driving assembly (2) is in transmission connection with a rotary transmission assembly (3), the output end of the rotary transmission assembly (3) is in transmission connection with a side clamping driving assembly (4), the side clamping driving assembly (4) comprises a driving bin (41), a lead screw (42), a driving block (43), a second mounting frame (44) and a workpiece side positioner (45), one end of the lead screw (42) is in transmission connection with the interior of the driving bin (41), the lead screw (42) is in threaded connection with the interior of the driving block (43), the second mounting frame (44) is fixedly installed at one end of the driving block (43), the workpiece side positioner (45) is arranged at one side of one end of the second mounting frame (44), and the rotary transmission assembly (3) is directly above a loading table (5).

2. The special auxiliary punching tooling for a punch suitable for a special-shaped workpiece according to claim 1, characterized in that: The rotary driving assembly (2) comprises a driving motor (21) and a speed changer (22), the output end of the driving motor (21) is in transmission connection with the input end of the speed changer (22), and the output end of the speed changer (22) is in transmission connection with the input end of the rotary transmission assembly (3).

3. The special punching tooling for a punch press for a profiled workpiece according to claim 1, characterized in that: The rotary transmission assembly (3) comprises a third mounting frame (31), a first transmission shaft (32), a first transmission gear (33), a second transmission gear (34), a second transmission shaft (35) and a mounting support ring (36), one end of the first transmission shaft (32) is movably penetrated through the center of the third mounting frame (31), the first transmission gear (33) is fixedly installed at the other end of the first transmission shaft (32), the outer side of the first transmission gear (33) is in mesh with the outer side of the second transmission gear (34), the second transmission gear (34) is fixedly installed at one end of the second transmission shaft (35), and the other end of the second transmission shaft (35) is fixedly connected with one end of the lead screw (42).

4. The special punching tooling for a punch press for a profiled workpiece of claim 1, wherein: A plurality of installation circular grooves are arranged in the interior of the mounting support ring (36) in an annular arrangement, and the second transmission shaft (35) is movably penetrated through the interior of the installation circular grooves.

5. The special punching tooling for a punch press for a profiled workpiece of claim 1, wherein: The workpiece side positioner (45) comprises a positioning cylinder (451), a mounting block (452) and a side positioning plate (453), two positioning cylinders (451) are fixedly installed at one side of the mounting block (452), and the side positioning plate (453) is fixedly installed at the other side of the mounting block (452).

6. The special auxiliary punching tooling for a punch suitable for a profiled workpiece according to claim 5, characterized in that: Two positioning rods (441) are fixedly installed at one side of one end of the second mounting frame (44), and one end of the positioning rod (441) is movably clamped in the interior of the positioning cylinder (451).

7. The special auxiliary punching tooling for a punch suitable for a profiled workpiece according to claim 5, characterized in that: A flexible soft pad is fixedly bonded at one side of the side positioning plate (453).

8. The special punching tooling for a punch press for a profiled workpiece of claim 1, wherein: A guide rod (411) is fixedly and symmetrically installed in the interior of the driving bin (41), and the guide rod (411) is movably penetrated through the interior of the driving block (43).

9. The special punching tooling for a punch press for a profiled workpiece of claim 1, wherein: A supporting base is fixedly installed at one end of the driving bin (41), and the supporting base is fixedly installed at one side of the loading table (5).

10. The special punching tooling for a punch press for a profiled workpiece of claim 1, wherein: The loading table (5) is a circular plate.

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