U-shaped pipe punch

Abstract

The invention belongs to the technical field of U-shaped pipes, and particularly relates to a U-shaped pipe punch which comprises a punch body, a U-shaped mounting groove is formed in the punch body, a U-shaped pipe contact piece is mounted in the U-shaped mounting groove, the U-shaped pipe contact piece is connected with the punch body through a connecting assembly, a U-shaped groove matched with a U-shaped pipe is formed in the U-shaped pipe contact piece, and the U-shaped pipe contact piece is connected with the punch body through the connecting assembly. According to the U-shaped pipe punch, the part, making contact with the U-shaped pipe, of the U-shaped pipe punch is separated to form the U-shaped pipe contact piece, the worn part of the U-shaped pipe punch can be replaced by replacing the U-shaped pipe contact piece, overall replacement of the U-shaped pipe punch is avoided, U-shaped pipe contact pieces suitable for other U-shaped pipe diameters can be replaced, and therefore the U-shaped pipe punch can be used conveniently; the U-shaped pipe contact piece is positioned and fixed through the positioning clamping groove and the positioning clamping block, the U-shaped pipe contact piece is convenient to disassemble and assemble, the position of the positioning clamping block is stabilized in cooperation with the locking assembly, and the stability of the U-shaped pipe contact piece during installation is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of U-shaped tubes, and specifically relates to a U-shaped tube punch. Background Art

[0002] U-tube is a tubular structure in the shape of "U". It is usually made of metal (such as copper, stainless steel), plastic (such as PVC, PPR) and other materials. In many fields, the shape of U-tube gives it unique physical and chemical properties, so it is widely used. From the appearance, it mainly consists of two parallel straight tube parts and a curved connecting part. The length and diameter of the straight tube part can be designed and manufactured according to the specific purpose of use. For example, in the U-tube used in the laboratory, the diameter may be smaller, generally between a few millimeters and more than ten millimeters, which is used for the transmission of small flow liquids or gases or experimental observations; while in industrial equipment, the diameter of U-tubes may be larger, reaching tens of centimeters, which is used for operations such as the transportation of large amounts of fluids or heat exchange.

[0003] The U-tube punch is a tool used to process U-tubes. It is usually a punch component with a specific shape. In the field of pipe processing, the punch is used to extrude straight tubes into U-shaped tubes. In actual use, there is a mold that cooperates with the punch, and there is a groove on the mold that cooperates with the punch. In the pipeline installation of some industrial refrigeration equipment, the pipeline needs to be processed into a U shape to realize a specific fluid circulation path. The U-tube punch can process the pipe efficiently and accurately to ensure that the size and shape of the U-tube meet the design requirements.

[0004] In the prior art, driven by a stamping device, a U-shaped tube punch punches a straight tube into a U-shaped tube. The portion of the U-shaped tube punch that contacts the U-shaped tube often rubs against the tube, which can easily cause wear at the contact position between the U-shaped tube punch and the U-shaped tube. When the wear is severe, a new U-shaped tube punch needs to be replaced, which is a waste of materials.

[0005] Therefore, a U-shaped tube punch is proposed to address the above problems. Summary of the invention

[0006] The purpose of the present application is to design a U-shaped tube punch in view of the shortcomings of the prior art. The punch has the advantage of being able to replace the part of the U-shaped tube punch that contacts the U-shaped tube, and being able to replace the U-shaped tube contact piece that matches the U-shaped tubes of different diameters. This can avoid the waste of materials when replacing the entire U-shaped tube punch, and can also expand the scope of use of the U-shaped tube punch.

[0007] To achieve the above objectives, this application provides the following technical solutions:

[0008] A U-shaped tube punch comprises a punch body, wherein the punch body is provided with a U-shaped mounting groove, a U-shaped tube contact piece is installed in the U-shaped mounting groove, the U-shaped tube contact piece is connected to the punch body through a connecting component, and the U-shaped tube contact piece is provided with a U-shaped groove matching the U-shaped tube.

[0009] Preferably, the bottom of the punch body is provided with symmetrically arranged guide holes, and the guide holes are located on both sides of the U-shaped mounting groove.

[0010] Preferably, the connecting assembly includes a positioning slot opened on the U-shaped tube contact piece, a positioning block is provided in the positioning slot, the positioning block is fixedly connected to a rack, the rack is meshingly connected to a gear, one end face of the gear is fixedly connected to a transmission rod, the end of the transmission rod is fixedly connected to a circular rotating plate, and the circular rotating plate is connected to a toggle rod at a position close to the edge on a side away from the transmission rod through a bearing.

[0011] Preferably, positioning magnets are embedded at positions on the inner wall of the U-shaped mounting groove corresponding to the U-shaped tube contact piece.

[0012] Preferably, a locking assembly is installed on the punch body, and the locking assembly includes an installation chamber, a movable plate is provided in the installation chamber, a movable rod is fixedly connected to the center position of the top surface of the movable plate, a pulling block is fixedly connected to the top of the movable rod, a spring is sleeved on the movable rod, and the spring is provided in the installation chamber, a locking card is fixedly connected to the bottom end surface of the movable plate, and evenly distributed locking slots are provided on the outer side of the circular rotating plate, and the bottom end of the locking card extends into the corresponding locking slot.

[0013] Preferably, corresponding cavities are provided in the punch body at positions matching the positioning block, the rack, the gear and the transmission rod.

[0014] Preferably, a first hidden groove and a second hidden groove are respectively provided at positions on the punch body corresponding to the circular rotating plate and the pulling block.

[0015] Preferably, a punch mounting handle is provided on the top of the punch body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present application forms a U-shaped tube contact piece by separating the part of the U-shaped tube punch that contacts the U-shaped tube. The worn part of the U-shaped tube punch can be replaced by replacing the U-shaped tube contact piece, thereby avoiding the replacement of the entire U-shaped tube punch. The U-shaped tube contact piece that is adapted to other U-shaped tube diameters can also be replaced to facilitate the use of the U-shaped tube punch.

[0018] 2. The present application sets a connection component and adopts a positioning card slot and a positioning card block structure to position and fix the U-shaped tube contact piece, so that the U-shaped tube contact piece can be installed on the punch body, which is convenient for the disassembly and assembly of the U-shaped tube contact piece, and cooperates with the locking component to stabilize the position of the positioning card block to avoid the positioning card block leaving the positioning card slot due to vibration, thereby ensuring the stability of the U-shaped tube contact piece during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic cross-sectional structure diagram of the position of the first hidden groove of the present application;

[0021] Figure 3 A schematic diagram of the structure of the connection components for this application;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the punch body of the present application;

[0023] Figure 5 This is a partial structural diagram of the locking assembly of this application.

[0024] In the figure: 1. Punch body; 2. U-shaped mounting groove; 3. U-shaped tube contact piece;

[0025] 4. Connecting assembly; 401. Positioning slot; 402. Positioning block; 403. Rack; 404. Gear; 405. Transmission rod; 406. Circular rotating plate; 407. Toggle rod;

[0026] 5. U-shaped groove; 6. Guide hole; 7. Positioning magnet;

[0027] 8. Locking assembly; 801. Installation chamber; 802. Movable plate; 803. Movable rod; 804. Pull block; 805. Spring; 806. Locking card; 807. Locking card slot;

[0028] 9. Corresponding cavity; 10. First hidden groove; 11. Second hidden groove; 12. Punch mounting handle. DETAILED DESCRIPTION

[0029] like Figures 1 to 5As shown, a U-shaped tube punch comprises a punch body 1, a U-shaped mounting groove 2 is provided on the punch body 1, a U-shaped tube contact piece 3 is installed in the U-shaped mounting groove 2, the U-shaped tube contact piece 3 is connected to the punch body 1 through a connecting component 4, a U-shaped groove 5 matching the U-shaped tube is provided on the U-shaped tube contact piece 3, and the part of the U-shaped tube punch that contacts the U-shaped tube is separated to form the U-shaped tube contact piece 3, and the worn part of the U-shaped tube punch can be replaced by replacing the U-shaped tube contact piece 3 to avoid replacing the entire U-shaped tube punch, and the U-shaped tube contact piece 3 that adapts to other U-shaped tube diameters can also be replaced to facilitate the use of the U-shaped tube punch.

[0030] As a preferred embodiment, symmetrically arranged guide holes 6 are provided at the bottom of the punch body 1 , and the guide holes 6 are located on both sides of the U-shaped mounting groove 2 .

[0031] As a preferred embodiment, the connecting component 4 includes a positioning slot 401 opened on the U-shaped tube contact 3, a positioning block 402 is provided in the positioning slot 401, the positioning block 402 is fixedly connected to a rack 403, the rack 403 is meshingly connected to a gear 404, a transmission rod 405 is fixedly connected to one end face of the gear 404, a circular rotating plate 406 is fixedly connected to the end of the transmission rod 405, a toggle rod 407 is connected to the edge of the circular rotating plate 406 away from the transmission rod 405 through a bearing, and the U-shaped tube contact 3 is positioned and fixed by using the positioning slot 401 and the positioning block 402 structure, so that the U-shaped tube contact 3 can be installed on the punch body, which is convenient for disassembly and assembly of the U-shaped tube contact 3.

[0032] As a preferred embodiment, positioning magnets 7 are embedded at positions on the inner wall of the U-shaped mounting groove 2 corresponding to the U-shaped tube contact piece 3 .

[0033] It is worth mentioning that a locking assembly 8 is installed on the punch body 1, and the locking assembly 8 includes an installation chamber 801, in which a movable plate 802 is arranged, and a movable rod 803 is fixedly connected to the center position of the top surface of the movable plate 802, and a pulling block 804 is fixedly connected to the top of the movable rod 803, and a spring 805 is sleeved on the movable rod 803, and the spring 805 is arranged in the installation chamber 801, and a locking card 806 is fixedly connected to the bottom end surface of the movable plate 802, and evenly distributed locking grooves 807 are provided on the outer side of the circular rotating plate 406, and the bottom end of the locking card 806 extends into the corresponding locking groove 807 to lock the circular rotating plate 406 to prevent it from rotating, thereby preventing the positioning block 402 from being displaced, thereby preventing the positioning block 402 from leaving the positioning groove 401 due to vibration, thereby ensuring the stability of the U-shaped tube contact 3 during installation.

[0034] As a preferred method, corresponding cavities 9 are opened in the punch body 1 at positions matching the positioning block 402, rack 403, gear 404, and transmission rod 405, and the corresponding cavities 9 are used for the installation of structures such as the positioning block 402, rack 403, gear 404, and transmission rod 405.

[0035] As a preferred method, a first hidden groove 10 and a second hidden groove 11 are respectively opened at positions corresponding to the circular rotating plate 406 and the pulling block 804 on the punch body 1, and the circular rotating plate 406, the toggle rod 407, the pulling block 804 and other structures are placed in the first hidden groove 10 and the second hidden groove 11 to avoid protrusions that affect the use of the U-shaped tube punch.

[0036] Specifically, a punch mounting handle 12 is provided on the top of the punch body 1 for mounting the U-shaped tube on a corresponding punching device.

[0037] Working principle and process: When the worn U-shaped tube contact 3 needs to be replaced, the pulling block 804 of the locking assembly 8 is pulled upward, and then the movable rod 803 drives the movable plate 802 and the locking card 806, so that the locking card 806 can leave the corresponding locking slot 807, and at the same time cause the spring 805 to compress, and the circular rotating plate 406 is rotated through the toggle rod 407 of the connecting assembly 4, and then the gear 404 rotates under the transmission of the transmission rod 405, so that the rack 403 drives the positioning block 402 to move until the positioning block 402 completely leaves The positioning slot 401 on the U-shaped tube contact 3 is used to push the U-shaped tube contact 3 downward, so that the U-shaped tube contact 3 can be separated from the U-shaped mounting slot 2 on the U-shaped tube punch, that is, the removal of the U-shaped tube contact 3 is completed. When installing a new U-shaped tube contact 3, the U-shaped tube contact 3 is placed in the U-shaped mounting slot 2, and the U-shaped tube contact 3 is initially fixed by the positioning magnet 7 embedded in the inner wall of the U-shaped mounting slot 2 and the U-shaped tube contact 3. The locking assembly 8 and the connecting assembly 4 can be operated again in sequence to install the U-shaped tube contact 3, which is beneficial to the use of the U-shaped tube punch.

Claims

1. A U-shaped tube punch, comprising a punch body (1), characterized in that: The punch body (1) is provided with a U-shaped installation groove (2), a U-shaped tube contact piece (3) is installed in the U-shaped installation groove (2), the U-shaped tube contact piece (3) is connected to the punch body (1) via a connecting assembly (4), and the U-shaped tube contact piece (3) is provided with a U-shaped groove (5) matching the U-shaped tube.

2. A U-shaped tube punch according to claim 1, characterized in that: The bottom of the punch body (1) is provided with symmetrically arranged guide holes (6), and the guide holes (6) are located on both sides of the U-shaped mounting groove (2).

3. A U-shaped tube punch according to claim 1, characterized in that: The connection assembly (4) comprises a positioning slot (401) formed on the U-shaped tube contact piece (3), a positioning block (402) being provided in the positioning slot (401), the positioning block (402) being fixedly connected to a rack (403), the rack (403) being meshingly connected to a gear (404), a transmission rod (405) being fixedly connected to one end face of the gear (404), a circular rotating plate (406) being fixedly connected to the end face of the transmission rod (405), a side of the circular rotating plate (406) away from the transmission rod (405) being connected to a toggle rod (407) at a position close to the edge thereof via a bearing.

4. A U-shaped tube punch according to claim 1, characterized in that: Positioning magnets (7) are embedded at positions on the inner wall of the U-shaped installation groove (2) corresponding to the U-shaped tube contact piece (3).

5. A U-shaped tube punch according to claim 3, characterized in that: A locking assembly (8) is installed on the punch body (1), and the locking assembly (8) includes an installation chamber (801). A movable plate (802) is arranged in the installation chamber (801), and a movable rod (803) is fixedly connected to the center position of the top surface of the movable plate (802), and a pulling block (804) is fixedly connected to the top of the movable rod (803). A spring (805) is sleeved on the movable rod (803), and the spring (805) is arranged in the installation chamber (801). A locking card (806) is fixedly connected to the bottom surface of the movable plate (802), and the outer side of the circular rotating plate (406) is provided with evenly distributed locking grooves (807), and the bottom end of the locking card (806) extends into the corresponding locking groove (807).

6. A U-shaped tube punch according to claim 3, characterized in that: Corresponding cavities (9) are provided in the punch body (1) at positions matching the positioning block (402), the rack (403), the gear (404), and the transmission rod (405).

7. A U-shaped tube punch according to claim 5, characterized in that: A first hidden groove (10) and a second hidden groove (11) are respectively provided on the punch body (1) at positions corresponding to the circular rotating plate (406) and the pulling block (804).

8. The U-shaped tube punch according to claim 1, characterized in that: A punch mounting handle (12) is provided on the top of the punch body (1).

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