Punching device for luggage pull rod production

Abstract

The utility model discloses a punching device for luggage pull rod production, which comprises an upper die and a lower die, the upper die is provided with an upper pressure head, and the upper pressure head is symmetrically provided with first inclined planes; the lower die comprises a supporting seat and a punching assembly, the punching assembly comprises a pushing block and a punching needle, a second inclined plane is arranged on the pushing block, the first inclined plane is parallel to the second inclined plane, the punching needle is fixedly arranged on the pushing block, an avoiding hole is formed in the supporting seat, and the punching needle and the avoiding hole are coaxially arranged; the upper pressing head moves downwards, the first inclined face makes contact with the second inclined face, the pushing block is pushed to communicate with the punching needle to move towards the supporting base, one end of the hollow pipe is arranged on the supporting base in a sleeving mode, the upper die moves downwards to make the first inclined face make contact with the second inclined face, and then the pushing block and the punching needle are driven to move towards the supporting base through extrusion and pushing of the inclined faces. And then the punching needle is made to punch the hole opening position of the hollow pipe, shearing acting force is formed between the punching needle and the receding hole, the pipe wall of the part is sheared and removed, and therefore a hole is formed through punching.

Description

Technical Field

[0001] The utility model belongs to the technical field of drawbar production, in particular to a punching device for producing luggage drawbars. Background Art

[0002] Luggage trolleys are an important component of luggage. They are used to drag the luggage during use, making it easier to carry. Current luggage trolleys are made of a retractable structure assembled from multiple hollow tubes. During the production process, holes often need to be machined in the hollow tubes to facilitate subsequent assembly. This is often done using a drill press, but since hollow tubes are often round, the drill press is inconvenient to clamp, resulting in low production efficiency. Burrs also form at the drilled holes, requiring cleaning and polishing. Summary of the Invention

[0003] The utility model aims to provide a punching device for producing luggage drawbars, which is intended to solve the problem of quickly punching holes on the drawbars by punching during the production process of luggage drawbars.

[0004] In order to solve the above technical problems, the purpose of this utility model is achieved as follows:

[0005] A punching device for producing luggage drawbars comprises an upper mold and a lower mold, the upper mold being provided with an upper pressure head, and the upper pressure head being symmetrically provided with a first inclined surface; the lower mold comprising a support seat and a punching assembly, the punching assembly comprising a push block and a punch needle, the push block being provided with a second inclined surface, the first inclined surface being parallel to the second inclined surface, the punch needle being fixed on the push block, and the support seat being provided with an avoidance hole, the punch needle being coaxially arranged with the avoidance hole; the upper pressure head moves downward, the first inclined surface contacts the second inclined surface, pushing the push block to connect with the punch needle and move toward the support seat.

[0006] On the basis of the above solution and as a preferred solution of the above solution: the punching components are symmetrically arranged on both sides of the support seat; and two first inclined surfaces are symmetrically arranged.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a fixed plate, a guide rod and a compression spring; the fixed plate is located between the pushing block and the support seat, the guide rod is fixed on the fixed plate, and the compression spring is sleeved on the guide rod; a guide hole is provided on the pushing block, and the guide rod is partially inserted into the guide hole; a punch needle channel is opened on the fixed plate, and the punch needle is partially received in the punch needle channel.

[0008] On the basis of the above solution and as a preferred solution of the above solution: it also includes a limit block, one end of which is in contact with the end of the pushing block away from the fixed plate.

[0009] On the basis of the above solution and as a preferred solution of the above solution: the limit block is provided with a waist-shaped hole and an adjusting bolt, and the adjusting bolt passes through the waist-shaped hole and is screwed into the lower mold base.

[0010] On the basis of the above solution and as a preferred solution of the above solution: a chip removal channel is provided on the support seat, the chip removal channel is communicated with the avoidance hole, and the chip removal channel has an opening downward.

[0011] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: one end of the hollow tube is put on the support seat, and the upper mold is moved downward so that the first inclined surface contacts the second inclined surface, and then the pushing block and the punch needle are driven to move toward the support seat through the squeezing and pushing of the inclined surface, so that the punch needle punches the opening position of the hollow tube, and then forms a shearing force with the avoidance hole, thereby shearing and removing the tube wall of this part, thereby punching out a hole. And through the symmetrical arrangement of the punching assembly and the symmetrical arrangement of the first inclined surface, a single punching action can be achieved, and two holes can be formed on the hollow tube at the same time, thereby improving production efficiency. And a chip removal channel is provided on the support seat, and the waste material after punching can enter the chip removal channel through the avoidance hole. When the punching is completed, the hollow tube is removed from the support seat, and the chip removal channel will fall downward from the lower end opening of the chip removal channel, thereby enabling continuous stamping production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0013] Figure 2 This is a three-dimensional diagram of the overall structure of the utility model from another angle;

[0014] Figure 3 This is the main view of the overall structure of the utility model;

[0015] Figure 4 It is a top view of the overall structure of the utility model;

[0016] Figure 5 yes Figure 4 Cross-sectional view at AA in the middle. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the given embodiments, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0018] In the description of this application, it should be understood that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0019] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0020] Combine Figure 1-5 As shown, the present application discloses a punching device for producing luggage drawbars, including an upper mold 10 and a lower mold 20. The upper mold 10 is provided with an upper pressure head 11, and the upper pressure head 11 is symmetrically provided with a first inclined surface 111; the lower mold 20 includes a support seat 22 and a punching assembly 21, the punching assembly 21 includes a pushing block 211 and a punching needle 213, the pushing block 211 is provided with a second inclined surface 2111, the first inclined surface 111 is parallel to the second inclined surface 2111, the punching needle 213 is fixed on the pushing block 211, and the support seat 22 is provided with an avoidance hole 221, and the punching needle 213 is coaxially arranged with the avoidance hole 221; the upper pressure head 111 moves downward, the first inclined surface 111 contacts the second inclined surface 2111, and the pushing block 211 is connected to the punching needle 213 to move toward the support seat 22. One end of the hollow tube is put on the support seat, and the upper mold is moved downward so that the first inclined surface contacts the second inclined surface, and then the pushing block and the punch needle are driven to move toward the support seat through the squeezing and pushing of the inclined surface, so that the punch needle punches the opening position of the hollow tube, and then forms a shearing force with the avoidance hole, thereby shearing and removing the part of the tube wall, thereby punching out a hole.

[0021] Furthermore, in order to improve the stability of the punching needle, in this embodiment, the punching assembly 21 also includes a fixed plate 212, a guide rod 214 and a compression spring 215; the fixed plate 212 is located between the push block 211 and the support seat 22, the guide rod 214 is fixed on the fixed plate 212, and the compression spring 215 is sleeved on the guide rod 214; the push block 211 is provided with a guide hole 2112, and the guide rod 214 is partially inserted into the guide hole 2112; the fixed plate 212 is provided with a punching needle channel 2121, and the punching needle 213 is partially received in the punching needle channel 2121. The guide rod 214 guides the push block 211 to improve its movement stability, and the diameter of the punching needle channel 2121 is adjusted to be slightly larger than the diameter of the punching needle. This allows the punching needle to move accurately while also straightening the punching needle, thereby preventing the punching needle from being deflected or unevenly stressed and causing bending and breaking due to the deflection.

[0022] Of course, see Figure 5 As shown, if the push block 211 moves excessively under the elastic pressure of the compression spring, it may cause the first inclined surface and the second inclined surface to be unable to ensure smooth contact and movement during the downward movement of the upper pressure head. The present embodiment also includes a limit block 23, one end of the limit block 23 is in contact with the end of the push block 211 away from the fixed plate 212. Considering the adjustment of the position of the push block 211 to make it reach the optimal position. To this end, in the present embodiment, the limit block 23 is provided with a waist-shaped hole 231 and an adjusting bolt 232, and the adjusting bolt 232 passes through the waist-shaped hole 231 and is screwed into the lower mold base 24. Then, when adjustment is needed, it is only necessary to loosen the adjusting bolt 232, and the limit block can be slid along the waist-shaped hole 231 to the appropriate position, and then the adjusting bolt 232 can be tightened.

[0023] In addition, considering that waste will inevitably be generated at the punching position during the punching process, according to the structure of the present application, the waste will inevitably be blocked in the avoidance hole, thereby causing a malfunction; for this reason, the present embodiment further preferably provides a chip removal channel 222 on the support seat 22, the chip removal channel 222 is connected to the avoidance hole 221, and the chip removal channel 222 has an opening downward, see Figure 5 Thus, by providing a chip removal channel on the support seat, the waste material after stamping can enter the chip removal channel through the avoidance hole. When the stamping is completed, the hollow tube is removed from the support seat, and the chip removal channel will fall downward from the lower end opening of the chip removal channel, thereby enabling continuous stamping production.

[0024] Implementation Column 2

[0025] To achieve more efficient punching and to create two symmetrical holes in the hollow tube in a single punching operation to accommodate later screw insertion, the punching components 21 are preferably symmetrically positioned on both sides of the support base 22 in this embodiment, and two first inclined surfaces 111 are symmetrically positioned. The symmetrical arrangement of the punching components and the symmetrical arrangement of the first inclined surfaces allows for the simultaneous creation of two holes in the hollow tube in a single punching operation, thereby improving production efficiency.

[0026] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A punching device for producing luggage drawbars, characterized by: The invention comprises an upper mold (10) and a lower mold (20), wherein the upper mold (10) is provided with an upper pressing head (11), and the upper pressing head (11) is symmetrically provided with a first inclined surface (111); the lower mold (20) comprises a support seat (22) and a punching assembly (21), and the punching assembly (21) comprises a pushing block (211) and a punching needle (213), and the pushing block (211) is provided with a second inclined surface (2111), and the first inclined surface (111) is symmetrically provided with the first inclined surface (111). The second inclined surface (2111) is parallel to the first inclined surface (2111), the punching needle (213) is fixed on the pushing block (211), and the support seat (22) is provided with a avoidance hole (221), and the punching needle (213) and the avoidance hole (221) are coaxially arranged; the upper pressure head (11) moves downward, the first inclined surface (111) contacts the second inclined surface (2111), and pushes the pushing block (211) to connect with the punching needle (213) and move toward the support seat (22).

2. The punching device for producing luggage drawbars according to claim 1, characterized in that: The punching components (21) are symmetrically arranged on both sides of the support seat (22); and two first inclined surfaces (111) are symmetrically arranged.

3. The punching device for producing luggage drawbars according to claim 1, characterized in that: The invention also includes a fixed plate (212), a guide rod (214) and a compression spring (215); the fixed plate (212) is located between the pushing block (211) and the support seat (22); the guide rod (214) is fixed on the fixed plate (212); and the compression spring (215) is sleeved on the guide rod (214); a guide hole (2112) is provided on the pushing block (211), and the guide rod (214) is partially inserted into the guide hole (2112); a punching needle channel (2121) is provided on the fixed plate (212), and the punching needle (213) is partially received in the punching needle channel (2121).

4. The punching device for producing luggage drawbars according to claim 3, characterized in that: It also includes a limiting block (23), one end of which is in contact with an end of the pushing block (211) away from the fixing plate (212).

5. The punching device for producing luggage drawbars according to claim 4, characterized in that: The limiting block (23) is provided with a waist-shaped hole (231) and an adjusting bolt (232); the adjusting bolt (232) passes through the waist-shaped hole (231) and is screwed into the lower die base (24).

6. The punching device for producing luggage drawbars according to claim 1, characterized in that: A chip removal channel (222) is provided on the support seat (22), the chip removal channel (222) is in communication with the avoidance hole (221), and the chip removal channel (222) has an opening downward.

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