A tool suitable for punching a diamond tube inner core and quickly replacing a punching sleeve

By designing a motor-driven tooling that uses a double-threaded screw and clamping block to fix the inner core of the rhombus tube, the problem of time-consuming, labor-intensive, and safety-risk replacement of the inner core of the rhombus tube punching was solved, realizing a fast replacement and safe punching process.

CN224525753UActive Publication Date: 2026-07-21JIANGSU MEIMEITE ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU MEIMEITE ENG TECH CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Replacing the inner core of a rhomboid tube during the punching process is time-consuming, labor-intensive, and poses safety risks, especially since its large weight, volume, and irregular structure make it difficult to place stably.

Method used

A tooling was designed that uses a motor to drive a double-threaded screw and a rectangular plate to move a triangular support base, which, together with a clamping block, fixes the inner core of the rhomboid tube, enabling stable placement and quick replacement of the inner core. The punch sleeve is disassembled and installed using a special mold.

Benefits of technology

It enables quick replacement of the inner core of the rhomboid tube, reducing operation time and safety risks, and improving work efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to punch sleeve replacement technical field, concretely to a kind of tool for the quick replacement of punch sleeve suitable for diamond tube punching inner core, including bottom plate, the top of the bottom plate is fixedly connected with four side plates.The utility model first motor moves rectangular plate by first double thread screw rod, rectangular plate moves triangular support seat, diamond tube inner core is placed between four triangular support seats by crane, second motor moves rectangular seat by second double thread screw rod rotation, rectangular seat moves round bar by vertical plate, round bar moves clamp block, diamond tube inner core is fixed, diamond tube is placed into diamond tube inner core, punching operation is carried out by puncher, special mould is used to dismantle pull horse to dismantle punch sleeve from through-hole, then new punch sleeve is installed, diamond tube inner core can be stably placed on support table during punch sleeve replacement, time and energy are saved, and safety risk is smaller.
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Description

Technical Field

[0001] This utility model relates to the field of punch sleeve replacement technology, specifically a tooling suitable for quick replacement of punch sleeves for the inner core of a diamond-shaped tube punch. Background Technology

[0002] As a type of irregularly shaped tube, rhomboid tubes have a wide range of applications in various fields. Their unique structure and performance bring many advantages. In the public transportation sector, stainless steel rhomboid tubes are often used for handrails on public transportation vehicles such as buses. During the punching process of rhomboid tubes, there are many types of tube wall thicknesses, large tube diameters, and irregular tube shapes. It is necessary to add inner cores of different specifications into the punching die. Under high-intensity working conditions, the punch sleeve on the inner core becomes a vulnerable part, requiring frequent processing and replacement. The punched inner core is heavy and bulky, and it is impossible to place the inner core on a platform during the replacement process, which is always time-consuming, labor-intensive, and poses a significant safety risk. To address these issues, we propose a tooling for quick replacement of punch sleeves for rhomboid tube punched inner cores. Utility Model Content

[0003] The purpose of this invention is to provide a tooling suitable for quick replacement of the punch sleeve of the inner core of a diamond-shaped tube punch, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tooling suitable for quick replacement of punch sleeves for punched inner cores of rhomboid tubes, comprising a base plate, four side plates fixedly connected to the top of the base plate, a first double-threaded screw rotatably connected between the sides of two corresponding side plates that are close to each other, two rectangular plates threaded to the outer side of the first double-threaded screw, a triangular support fixedly connected to the top of the rectangular plates, a connecting seat fixedly connected to the top of the rectangular plates, a rhomboid inner core movably contacting the four triangular support seats, four through holes opened on the inner wall of the rhomboid inner core, punch sleeves movably fitted in the through holes, and clamping blocks provided on the front and rear sides of the rhomboid inner core.

[0005] More preferably, the base plate has a cavity, and the top inner wall of the cavity has two rectangular holes.

[0006] More preferably, the same second double-threaded screw is rotatably connected between the front inner wall and the rear inner wall of the cavity.

[0007] More preferably, the outer thread of the second double-threaded screw is connected to two rectangular seats, and a vertical plate is fixedly connected to the top of the rectangular seats.

[0008] More preferably, two round rods are fixedly connected to the outer side of the vertical plate, and the ends of the round rods are fixedly connected to the outer side of the clamping block.

[0009] More preferably, two first square rods are fixedly connected between the two corresponding side plates that are close to each other, and the rectangular plate is slidably sleeved on the outside of the two first square rods. Two second square rods are fixedly connected between the front inner wall and the rear inner wall of the cavity, and the rectangular seat is slidably sleeved on the outside of the two second square rods.

[0010] More preferably, a first motor is fixedly connected to the left side of one of the side plates on the left side, and the output shaft end of the first motor is fixedly connected to the left end of the corresponding first double-threaded screw. A second motor is fixedly connected to the front side of the base plate, and the output shaft end of the second motor is fixedly connected to the front end of the second double-threaded screw.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The first motor drives the rectangular plate to move through the first double-threaded screw, and the rectangular plate drives the triangular support seats to move. The trolley places the rhomboid tube inner core between the four triangular support seats. The second motor drives the rectangular seat to move through the second double-threaded screw. The rectangular seat drives the round rod to move through the vertical plate. The movement of the round rod drives the clamping block to move and fix the rhomboid tube inner core. The rhomboid tube is placed into the rhomboid tube inner core. The punching operation is performed by the punching machine. The punch sleeve is removed from the through hole by the disassembly puller using a special mold, and then the new punch sleeve is installed. During the punch sleeve replacement process, the inner core can be stably placed on the support table, which saves time and effort and has a small safety risk. Attached Figure Description

[0012] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a left-view stereoscopic structural diagram of the present invention;

[0014] Figure 3 This is a three-dimensional structural diagram of the bottom plate and the vertical plate of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the bottom plate of this utility model;

[0016] Figure 5 for Figure 3 Enlarged 3D structural diagram of area A in the middle.

[0017] In the diagram: 1. Base plate; 2. Side plate; 3. First double-threaded screw; 4. Rectangular plate; 5. Triangular support seat; 6. Connecting seat; 7. Diamond-shaped tube inner core; 8. Through hole; 9. Punch sleeve; 10. Clamping block; 11. Cavity; 12. Rectangular hole; 13. Second double-threaded screw; 14. Rectangular seat; 15. Vertical plate; 16. Round rod; 17. First square rod; 18. Second square rod; 19. First motor; 20. Second motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example

[0020] Please see Figure 1-5 This utility model provides a technical solution: a tooling suitable for quick replacement of punch sleeves for punched inner cores of rhomboid tubes, including a base plate 1, four side plates 2 fixedly connected to the top of the base plate 1, a first double-threaded screw 3 rotatably connected between corresponding two side plates 2 on their adjacent sides, two rectangular plates 4 threadedly connected to the outer side of the first double-threaded screw 3, triangular support seats 5 fixedly connected to the top of the rectangular plates 4, a connecting seat 6 fixedly connected to the top of the rectangular plates 4, a rhomboid inner core 7 movably contacting the four triangular support seats 5, four through holes 8 opened on the inner wall of the rhomboid inner core 7, a punch sleeve 9 movably fitted in the through holes 8, and clamping blocks 10 provided on the front and rear sides of the rhomboid inner core 7. Motor 19 drives rectangular plate 4 to move via first double-threaded screw 3. Rectangular plate 4 drives triangular support base 5 to move. A crane places rhomboid tube inner core 7 between four triangular support bases 5. Second motor 20 drives rectangular base 14 to move via second double-threaded screw 13. Rectangular base 14 drives round rod 16 to move via vertical plate 15. Round rod 16 moves and drives clamping block 10 to move to fix rhomboid tube inner core 7. Rhomboid tube is placed into rhomboid tube inner core 7. Punching operation is performed by punching machine. Special mold is used to remove the punch sleeve 9 from the through hole 8. Then, a new punch sleeve 9 is installed. During the replacement of punch sleeve 9, the inner core can be stably placed on the support table, saving time and effort and reducing safety risks.

[0021] In this embodiment, specifically: a cavity 11 is provided on the bottom plate 1, and two rectangular holes 12 are provided on the top inner wall of the cavity 11;

[0022] In this embodiment, specifically: the same second double-threaded screw 13 is rotatably connected between the front inner wall and the rear inner wall of the cavity 11;

[0023] In this embodiment, specifically: the outer thread of the second double-threaded screw 13 is connected to two rectangular seats 14, and the top of the rectangular seats 14 is fixedly connected to a vertical plate 15;

[0024] In this embodiment, specifically: two round rods 16 are fixedly connected to the outer side of the vertical plate 15, and the ends of the round rods 16 are fixedly connected to the outer side of the clamping block 10.

[0025] In this embodiment, specifically: two first square rods 17 are fixedly connected between the two corresponding side plates 2 that are close to each other, and a rectangular plate 4 is slidably sleeved on the outside of the two first square rods 17. Two second square rods 18 are fixedly connected between the front inner wall and the rear inner wall of the cavity 11, and a rectangular seat 14 is slidably sleeved on the outside of the two second square rods 18.

[0026] In this embodiment, specifically: a first motor 19 is fixedly connected to the left side of a side plate 2 on the left side, and the output shaft end of the first motor 19 is fixedly connected to the left end of the corresponding first double threaded screw 3. A second motor 20 is fixedly connected to the front side of the base plate 1, and the output shaft end of the second motor 20 is fixedly connected to the front end of the second double threaded screw 13.

[0027] In operation, when it is necessary to adjust the distance between two corresponding triangular support seats 5, the first motor 19 is started. The first motor 19 drives the corresponding first double-threaded screw 3 to rotate. The rotation of the first double-threaded screw 3 drives the corresponding two rectangular plates 4 to move. The corresponding two rectangular plates 4 slide on the outside of the first square rod 17. The rectangular plates 4 drive the corresponding triangular support seats 5 to move. The rectangular plates 4 drive the corresponding connecting seats 6 to move. The four triangular support seats 5 move towards each other. Then, the rhomboid tube inner core 7 is placed between the four triangular support seats 5 by a crane. Then, the second motor 20 is started. The second motor 20 drives the second double-threaded screw 3 to rotate. The double-threaded screw 13 rotates, causing the rectangular seat 14 to move. The rectangular seat 14 slides on the outside of the second square rod 18. The rectangular seat 14 causes the vertical plate 15 to move, the vertical plate 15 causes the round rod 16 to move, and the round rod 16 causes the clamping block 10 to move. The two corresponding clamping blocks 10 move towards each other and fix the inner core 7 of the rhombus tube. The rhombus tube is placed into the inner core 7 of the rhombus tube, and punching is performed by a punching machine. A special mold is used to remove the puller to remove the punch sleeve 9 from the through hole 8, and then a new punch sleeve 9 is installed. During the replacement of the punch sleeve 9, the inner core can be stably placed on the support table, which saves time and effort and has a small safety risk.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling for quick replacement of the punch sleeve for the inner core of a diamond-shaped tube punch, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to four side plates (2). The two corresponding side plates (2) are rotatably connected to the same first double threaded screw (3) on the side that is close to each other. The outer side of the first double threaded screw (3) is threadedly connected to two rectangular plates (4). The top of the rectangular plates (4) is fixedly connected to a triangular support seat (5). The top of the rectangular plates (4) is fixedly connected to a connecting seat (6). The four triangular support seats (5) are in movable contact with the same rhomboid tube inner core (7). The inner wall of the rhomboid tube inner core (7) is provided with four through holes (8). A punch sleeve (9) is movably fitted in the through holes (8). The front and rear sides of the rhomboid tube inner core (7) are provided with clamping blocks (10).

2. The tooling for quick replacement of the punch sleeve for the inner core of a diamond-shaped tube according to claim 1, characterized in that: A cavity (11) is provided on the bottom plate (1), and two rectangular holes (12) are provided on the top inner wall of the cavity (11).

3. The tooling for quick replacement of the punch sleeve for punching the inner core of a rhomboid tube according to claim 2, characterized in that: The cavity (11) is rotatably connected to the front inner wall and the rear inner wall by the same second double-threaded screw (13).

4. The tooling for quick replacement of the punch sleeve for the inner core of a diamond-shaped tube according to claim 3, characterized in that: The outer thread of the second double-threaded screw (13) is connected to two rectangular seats (14), and a vertical plate (15) is fixedly connected to the top of the rectangular seats (14).

5. The tooling for quick replacement of the punch sleeve for the inner core of a diamond-shaped tube according to claim 4, characterized in that: Two round rods (16) are fixedly connected to the outside of the vertical plate (15), and the ends of the round rods (16) are fixedly connected to the outside of the clamping block (10).

6. A tooling for quick replacement of the punch sleeve for punching the inner core of a rhomboid tube according to claim 5, characterized in that: Two first square rods (17) are fixedly connected between the two corresponding side plates (2) on the side that are close to each other. The rectangular plate (4) is slidably sleeved on the outside of the two first square rods (17). Two second square rods (18) are fixedly connected between the front inner wall and the rear inner wall of the cavity (11). The rectangular seat (14) is slidably sleeved on the outside of the two second square rods (18).

7. A tooling for quick replacement of the punch sleeve for the inner core of a diamond-shaped tube punch, as described in claim 6, characterized in that: A first motor (19) is fixedly connected to the left side of one of the side plates (2) on the left side. The output shaft end of the first motor (19) is fixedly connected to the left end of the corresponding first double threaded screw (3). A second motor (20) is fixedly connected to the front side of the base plate (1). The output shaft end of the second motor (20) is fixedly connected to the front end of the second double threaded screw (13).