Automobile part punching die

Abstract

The utility model relates to the technical field of automobile part machining equipment, and particularly discloses an automobile part punching die. A square groove is formed in the middle of the top face of a bottom table; the supporting frame is fixed to the rear end of the top face of the bottom table. The base plate is fixed to the front side of the top of the supporting frame. A punching oil cylinder piston cylinder is fixed to the middle of the top face of the base plate. The pressing plate is arranged under the base plate. The rotary pressing positioning mechanisms are arranged on the two sides of the middle of the top face of the bottom table correspondingly. The upper die base is arranged between the base plate and the pressing plate, the middle of the top face of the upper die base is fixed to the bottom end of a piston rod of the punching oil cylinder, the punching head is fixed to the bottom face of the upper die base, a through hole connected with the punching head in a sliding and sleeving mode is formed in the pressing plate, and first springs are vertically connected between the four corners of the pressing plate and the four corners of the upper die base; the lower die comprises a lower die base arranged in the square groove in a sleeved mode, a vertical hole corresponding to the punching head is formed in the top face of the lower die base, an ejection column is slidably arranged in the vertical hole in a sleeved mode, and a second spring is connected between the ejection column and the bottom face of an inner cavity of the vertical hole. And therefore, the punching quality can be guaranteed conveniently when the automobile parts are punched.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing equipment, in particular to an automobile parts punching die. Background Art

[0002] Auto parts are the components and products that make up the overall automotive parts processing process. Punching dies are widely used in the punching process, efficiently and accurately completing holes of various shapes and sizes. They offer advantages such as long service life, high production efficiency, and high processing precision.

[0003] However, the current punching dies are not secure enough to fix the parts when punching automobile parts, which can easily cause abnormal stretching around the holes and make it difficult to ensure the punching quality. Utility Model Content

[0004] The purpose of the utility model is to provide a punching die for automobile parts, which is used to solve the problem that it is difficult to ensure the punching quality when punching automobile parts.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punching die for automobile parts, comprising an upper die, a lower die and a stamping oil cylinder, wherein a square groove is provided in the middle of the top surface of the base; both sides of the bottom end of the support frame are respectively fixed to both sides of the rear end of the top surface of the base; the base plate is fixed to the front side of the top of the support frame and is directly opposite to the position of the square groove, and the piston cylinder of the stamping oil cylinder is vertically fixed to the middle of the top surface of the base plate; the pressing plate is provided directly below the base plate; the rotary pressing and positioning mechanisms are respectively provided at both sides of the middle of the top surface of the base plate; the upper die includes a plurality of holes provided in parallel with the bottom die. The upper die seat is fixedly connected to the bottom end of the piston rod of the stamping cylinder and the middle part of the top surface between the base plate and the pressure plate, and a punching head is vertically fixed to the bottom surface of the upper die seat and the bottom end is higher than the pressure plate. The pressure plate is provided with a through hole that is slidably sleeved with the punching head, and a spring 1 is vertically connected between the four corners of the top surface of the pressure plate and the four corners of the bottom surface of the upper die seat; the lower die includes a lower die seat fixedly sleeved in the square groove, and the top surface of the lower die seat is provided with a vertical hole corresponding to the punching head one by one, a top column is slidably sleeved in the vertical hole, and a spring 2 is connected between the bottom surface of the top column and the bottom surface of the inner cavity of the vertical hole.

[0006] Preferably, the four corners of the pressure plate are respectively provided with holes, and the holes are respectively fixedly sleeved with guide rods. The four corners of the base plate and the upper mold base are respectively fixedly sleeved with linear bearings 1 and 2 that match the sliding sleeves of the guide rods, and the spring 1 is sleeved on the outside of the bottom end of the guide rod.

[0007] Preferably, the lower die seat is provided with an enlarged column cavity at the bottom of the vertical hole, the bottom end of the top column is fixed with a chassis that is slidably sleeved with the enlarged column cavity, and the top ends of the two springs are pressed against the bottom surface of the chassis.

[0008] Preferably, a plurality of countersunk holes are provided on the top surface of the lower die base near the outer edge, and the bottom ends of the hexagon socket bolts inserted into the countersunk holes are threadedly engaged with the bottom surface of the square groove.

[0009] Preferably, the rotary pressing and positioning mechanism includes a base fixed on both sides of the middle of the top surface of the base, a short shaft sleeved on the center of the top surface of the base, a rotating plate rotatably sleeved on the top of the short shaft in the middle, a guide column sleeved on one end of the rotating plate at the bottom, a screw rod fixedly sleeved on the other end of the rotating plate at the bottom, a slat parallel to the top of the rotating plate and slidingly sleeved with the guide column at one end, a threaded sleeve rotatably sleeved on the middle of the slat and matched with the threaded sleeve of the screw rod, and a pressure block fixed on the bottom surface of the slat away from one end of the guide column.

[0010] Preferably, a handle is fixed to the outer peripheral wall of the threaded sleeve in the radial direction, and rubber gaskets are fixed to both ends of the bottom surface of the pressing block.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model relates to a punching die for automobile parts. When punching is performed, a rotary pressing and positioning mechanism is first used to position the automobile parts to be processed. When the die is closed, a pressing plate first contacts the punching head and the parts to ensure the pressing effect of the parts. Then the punching head punches the parts through the sleeve hole. As the punching is performed, the ejector column moves downward synchronously, thereby better ensuring the quality of the punching process on the automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the upper mold of the utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the pressing plate of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the lower mold of the utility model;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the top column of the utility model;

[0018] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotary pressing and positioning mechanism of the utility model.

[0019] In the figure: 1-base; 1.1-square groove;

[0020] 2-support frame;

[0021] 3-base plate; 3.1-linear bearing 1;

[0022] 4- Stamping cylinder;

[0023] 5-upper die; 5.1-upper die base; 5.2-punching head; 5.3-linear bearing 2;

[0024] 6-pressing plate; 6.1-through hole; 6.2-throwing hole;

[0025] 7-spring one;

[0026] 8-guide rod;

[0027] 9-lower die; 9.1-lower die base; 9.1.1-vertical hole; 9.1.2-enlarged column cavity; 9.1.3-counterbore; 9.2-top column; 9.2.1-chassis; 9.3-spring 2;

[0028] 10-rotating pressing and positioning mechanism; 10.1-base; 10.2-short shaft; 10.3-rotating plate; 10.4-slats; 10.5-guide column; 10.6-screw; 10.7-threaded sleeve; 10.8-pressure block; 10.9-handle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6 The present invention provides a technical solution: a punching die for automotive parts, comprising a base 1 having a square groove 1.1 in the middle of its top surface. A support frame 2 has its bottom ends fixed to the two sides of the rear end of the base 1's top surface. A base plate 3 is fixed to the front of the top of the support frame 2, directly opposite the square groove 1.1. A stamping cylinder 4 is vertically fixed to the middle of the top surface of the base plate 3. Linear bearings 3.1 are fixedly mounted at the four corners of the base plate 3.

[0031] The upper die 5 comprises an upper die base 5.1, positioned parallel to the base plate 3 and fixedly connected in the middle of its top surface to the bottom end of the piston rod of the punching cylinder 4. A punch head 5.2 is fixed perpendicularly to the bottom surface of the upper die base 5.1. Linear bearings 5.3 are fixedly mounted at the four corners of the upper die base 5.1, corresponding to the positions of linear bearings 3.1.

[0032] A pressure plate 6 is positioned parallel to and below the upper die base 5.1. It has through-holes 6.1 that slidably engage with the punch head 5.2. Springs 1 (7) are vertically connected between the four corners of the top surface of the pressure plate 6 and the four corners of the bottom surface of the upper die base 5.1. Each of the four corners of the pressure plate 6 has a sleeve hole 6.2, which securely engages a guide rod 8 that slidably engages with the corresponding linear bearing 1 (3.1) and bearing 2 (5.3). Springs 1 (7) are mounted on the outside of the bottom end of the guide rod 8.

[0033] The lower die 9 includes a lower die base 9.1 fixedly mounted within the square recess 1.1. The top surface of the lower die base 9.1 is provided with vertical holes 9.1.1 corresponding one-to-one with the punch heads 5.2. A top post 9.2 is slidably mounted within the vertical holes 9.1.1. An enlarged column cavity 9.1.2 is provided at the bottom of the lower die base 9.1, and a base plate 9.2.1 is fixedly mounted at the bottom end of the top post 9.2, which slidably engages with the enlarged column cavity 9.1.2. A spring 9.3 has its top end pressed against the bottom surface of the base plate 9.2.1 and its bottom end pressed against the bottom surface of the enlarged column cavity 9.1.2. Multiple countersunk holes 9.1.3 are provided on the top surface of the lower die base 9.1, near the outer edge. The bottom ends of the hexagon socket bolts mounted within the countersunk holes 9.1.3 are threadedly mounted on the bottom surface of the square recess 1.1. That is, the cooperation between the hexagon socket bolt and the countersunk hole 9.1.3 facilitates the assembly and disassembly between the lower die 9 and the square groove 1.1, and facilitates ensuring that the top surface of the lower die base 9.1 is flush with the top surface of the base 1.

[0034] The rotary pressing and positioning mechanism 10 is respectively provided at positions on both sides of the middle portion of the top surface of the base 1. The rotary pressing and positioning mechanism 10 comprises a base 10.1 fixed to both sides of the middle portion of the top surface of the base 1, a short shaft 10.2 fitted into the center of the top surface of the base 10.1, a rotary plate 10.3 rotatably fitted into the top of the short shaft 10.2 in the middle portion, a guide post 10.5 fitted into one end of the rotary plate 10.3 at its bottom end, a screw rod 10.6 fixedly fitted into the other end of the rotary plate 10.3 at its bottom end, a slat 10.4 arranged parallel to the top of the rotary plate 10.3 and having one end slidably engaged with the guide post 10.5, a threaded sleeve 10.7 rotatably fitted into the middle portion of the slat 10.4 and threadably engaged with the screw rod 10.6, and a pressure block 10.8 fixed to the bottom surface of the slat 10.4 at one end away from the guide post 10.5 at its middle portion.

[0035] In summary, when punching an auto part, first place the auto part on top of lower die 9, so that the designed space is aligned with ejector pin 9.2. Slats 10.4 are swung to position pressure blocks 10.8 over the edges of the auto part. Threaded sleeves 10.7 are then rotated to gradually lower slats 10.4 until pressure blocks 10.8 press against the top surfaces of the auto part, completing the positioning of the auto part.

[0036] During the mold closing operation, the punching cylinder 4 presses the upper mold 5 downward, and the pressing plate 6 contacts the top surface of the automobile part before the punching head 5.2. During the process of the punching head 5.2 contacting the automobile part, the pressing plate 6 gradually presses the automobile part.

[0037] During the punching process of the punching head 5.2, the top column 9.2 moves downward synchronously to ensure high-quality completion of the punching process.

[0038] In order to facilitate the rotation of the threaded sleeve, a handle 10.9 is fixed radially on the outer peripheral wall of the threaded sleeve 10.7. In order to prevent the pressing block 10.8 from causing indentations or scratches on the top surface of the automotive parts, rubber gaskets are fixed at both ends of the bottom surface of the pressing block 10.8.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching die for automobile parts, comprising an upper die (5), a lower die (9) and a punching cylinder (4), characterized in that: Also includes: A base (1), wherein a square groove (1.1) is provided in the middle of the top surface of the base (1); A support frame (2), wherein two sides of the bottom end of the support frame (2) are respectively fixed to two sides of the rear end of the top surface of the base (1); A base plate (3), the base plate (3) is fixed to the front side of the top of the support frame (2) and is located opposite to the square groove (1.1); the piston cylinder of the punching oil cylinder (4) is vertically fixed to the middle of the top surface of the base plate (3); A pressing plate (6), the pressing plate (6) being arranged directly below the base plate (3); A rotary pressing and positioning mechanism (10), wherein the rotary pressing and positioning mechanism (10) is respectively arranged at positions on both sides of the middle portion of the top surface of the base (1); The upper die (5) comprises an upper die base (5.1) arranged parallel to the base plate (3) and the pressure plate (6), the middle of the top surface of which is fixedly connected to the bottom end of the piston rod of the punching cylinder (4), and a punching head (5.2) fixed vertically to the bottom surface of the upper die base (5.1) and the bottom end of which is higher than the pressure plate (6), the pressure plate (6) is provided with a through hole (6.1) that is slidably connected to the punching head (5.2), and a spring (7) is vertically connected between the four corners of the top surface of the pressure plate (6) and the four corners of the bottom surface of the upper die base (5.1); The lower die (9) comprises a lower die base (9.1) fixedly mounted in the square groove (1.1); a top surface of the lower die base (9.1) is provided with vertical holes (9.1.1) corresponding one to one with the punching heads (5.2); a top column (9.2) is slidably mounted in the vertical holes (9.1.1); and a second spring (9.3) is connected between the bottom surface of the top column (9.2) and the bottom surface of the inner cavity of the vertical hole (9.1.1).

2. The punching die for automobile parts according to claim 1, characterized in that: The four corners of the pressure plate (6) are respectively provided with sleeve holes (6.2), and the sleeve holes (6.2) are respectively fixedly sleeved with guide rods (8). The four corners of the base plate (3) and the upper mold base (5.1) are respectively fixedly sleeved with linear bearings 1 (3.1) and 2 (5.3) that are slidably sleeved and matched with the guide rods (8). The spring 1 (7) is sleeved on the outside of the bottom end of the guide rod (8).

3. The punching die for automobile parts according to claim 1, characterized in that: The lower die base (9.1) is provided with an enlarged column cavity (9.1.2) at the bottom of the vertical hole (9.1.1); a bottom plate (9.2.1) that is slidably sleeved and matched with the enlarged column cavity (9.1.2) is fixed to the bottom end of the top column (9.2); and the top end of the second spring (9.3) presses against the bottom surface of the bottom plate (9.2.1).

4. The punching die for automobile parts according to claim 1, characterized in that: The top surface of the lower die base (9.1) is provided with a plurality of countersunk holes (9.1.3) near the outer edge, and the bottom ends of the hexagon socket bolts set in the countersunk holes (9.1.3) are threadedly sleeved with the bottom surface of the square groove (1.1).

5. The punching die for automobile parts according to claim 1, characterized in that: The rotary pressing and positioning mechanism (10) comprises a base (10.1) fixed on both sides of the middle of the top surface of the base (1), a short shaft (10.2) sleeved on the center of the top surface of the base (10.1), a rotating plate (10.3) rotatably sleeved on the top of the short shaft (10.2) in the middle, a guide post (10.5) sleeved on one end of the rotating plate (10.3), a screw rod (10.6) fixedly sleeved on the other end of the rotating plate (10.3) at the bottom, a slat (10.4) arranged parallel to the rotating plate (10.3) and having one end slidably sleeved on the guide post (10.5), a threaded sleeve (10.7) rotatably sleeved on the middle of the slat (10.4) and threadedly sleeved with the screw rod (10.6), and a pressing block (10.8) fixed on the bottom surface of one end of the slat (10.4) away from the guide post (10.5).

6. The automobile parts punching die according to claim 5, characterized in that: A handle (10.9) is fixed radially to the outer peripheral wall of the threaded sleeve (10.7), and rubber gaskets are respectively fixed to both ends of the bottom surface of the pressing block (10.8).

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