Accurate punching die for armrest box

Abstract

The utility model discloses a precise punching die for an armrest box, which belongs to the technical field of punching dies for armrest boxes, and comprises an operation table, a limit fixing component and a punching component, the operation table comprises a table top and a table seat, the bottom of the table top is fixedly connected with the top of the table seat, and the punching component is used for punching screw holes in a base of the armrest box. The limiting and fixing assembly comprises a pair of L-shaped limiting blocks, a rack and a spring, protruding blocks are fixedly connected to the bottoms of the L-shaped limiting blocks, and a plurality of square grooves are formed in the top of the table top. According to the precise punching die for the armrest box, armrest box bases of different sizes can be fixed through the two L-shaped limiting blocks, the punching precision is improved, pushing force is provided for a push rod through the spring, and the punching precision is improved. The waste cut from the armrest box base is pushed to be separated from the annular cutting edge, the waste can be prevented from being clamped in the annular cutting edge, and the problems that most of existing punching dies are inconvenient to fix armrest box bases of different sizes, and the cut waste is prone to being clamped into the cutting edge are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of armrest box punching and cutting dies, in particular to a precise punching and cutting dies for an armrest box. Background Art

[0002] The punching die is a special process equipment used to process materials into parts in cold stamping. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to separate or plastically deform the material, thereby obtaining the desired parts. The working principle of the punching die is to use the press to generate pressure, transfer the pressure to the cutting edge, and the cutting edge cuts into the material to complete the punching.

[0003] During the production process of automobile armrest boxes, it is necessary to use a punching die to punch out screw holes at the four corners of the armrest box base for easy installation and use. Most of the existing punching dies position the workpiece through the groove on the lower die. The groove size is fixed, which is not convenient for fixing armrest box bases of different sizes. In the prior art, most of the punching is performed through an annular cutting edge to reduce burrs on the cut. However, the annular cutting edge is prone to get the cut waste stuck in the cutting edge when working, resulting in a decrease in punching quality or even damage to the cutting edge. Summary of the invention

[0004] The utility model aims to provide an armrest box precision punching die, which can be convenient for fixing armrest box bases of different sizes and can prevent waste materials from getting stuck in the cutting edge.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A precision punching mold for an armrest box is provided, comprising an operating table, wherein the operating table comprises a table top and a base, wherein the bottom of the table top is fixedly connected to the top of the base, and further comprises a limiting fixing component and a punching component, wherein the punching component is used to punch out screw holes on the armrest box base, and the limiting fixing component comprises a pair of L-shaped limiting blocks, a rack and a first spring, wherein a protrusion is fixedly connected to the bottom of the L-shaped limiting block, a plurality of square grooves are provided on the top of the table top, the square groove is plugged into one of the protrusions, a cavity is provided inside the table top, the bottom of another protrusion passes through the top wall of the table top and is slidably connected thereto, the rack is rotatably installed between the inner walls on both sides of the cavity, the teeth on the top of the rack are snap-fitted into the bottom of the protrusion, one end of the first spring is fixedly connected to the bottom wall of the cavity, and the other end of the first spring is fixedly connected to the bottom of one end of the rack.

[0007] Furthermore, the punching assembly includes a support rod, a press and an annular cutting edge, the support rod is fixedly connected to one side of the table top, the top of the press is fixedly connected to the top of the support rod, and the bottom of the telescopic end of the press is fixedly connected to the top of the annular cutting edge.

[0008] Furthermore, the punching assembly also includes a push rod and a second spring, one end of the second spring is fixedly connected to the top of the push rod, and the other end of the second spring is fixedly connected to the top wall of the annular cutting edge, and the annular cutting edge is slidably connected to the outer periphery of the push rod; when the bottom of the annular cutting edge is in contact with the top of the armrest box base, the push rod is located in the annular cutting edge; when the bottom of the annular cutting edge is separated from the armrest box base, the bottom of the push rod is detached from the annular cutting edge.

[0009] Furthermore, the operating table also includes a drawer, which passes through the side wall of one end of the table base and is slidably connected thereto, and a long groove is provided on the top of the table top.

[0010] Furthermore, the operating table also includes a scraper and a motor. One end of the scraper is rotatably connected to the top of the table. An empty groove is opened at the bottom of the table. The top wall of the empty groove is fixedly connected to the top of the motor. The output shaft of the motor passes through the top wall of the table and is fixedly connected to the scraper.

[0011] Furthermore, one end of the rack is rotatably connected to the inner wall of the cavity, and the other end of the rack passes through the side wall of the table top and is slidably connected thereto.

[0012] The beneficial effects of the utility model include: the utility model provides an L-shaped limit block, a push rod and a spring, when punching the armrest box base, one of the L-shaped limit blocks is moved to insert the protrusion at its bottom into the square groove, and then the armrest box base is fitted with the inner wall of the L-shaped limit block, and then the other L-shaped limit block is moved to make the protrusion at its bottom slide along the cavity, and the bottom of the protrusion pushes one end of the rack to rotate toward the bottom to compress the first spring, and after the L-shaped limit block is fitted with the side wall of the armrest box base, the first spring rebounds and pushes the rack to rotate toward the top to engage with the protrusion to fix the other L-shaped limit block, and armrest box bases of different sizes can be fixed by the two L-shaped limit blocks, thereby improving the punching accuracy, and after the punching is completed, the second spring provides thrust to the push rod, and the push rod pushes the waste cut from the armrest box base downward to prevent the waste from being stuck in the annular cutting edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0014] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 3 This is a cross-sectional view of the table structure of the utility model Figure 1 ;

[0017] Figure 4 This is a cross-sectional view of the table structure of the utility model Figure 2 ;

[0018] Figure 5 This is a disassembled diagram of the punching component structure of the utility model.

[0019] In the figure:

[0020] 1. Operation table; 10. Table top; 100. Square slot; 101. Cavity; 102. Long slot; 103. Empty slot; 11. Base; 12. Armrest box base; 13. Drawer; 14. Scraper; 15. Motor;

[0021] 2. Limit fixing assembly; 20. L-shaped limit block; 21. rack; 22. first spring; 23. convex block;

[0022] 3. Punching assembly; 30. Support rod; 31. Press; 32. Annular cutting edge; 33. Push rod; 34. Second spring. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0024] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] Reference Figures 1 to 5The illustrated armrest box precision punching die comprises an operating table 1, the operating table 1 comprises a table top 10 and a base 11, the bottom of the table top 10 is fixedly connected to the top of the base 11, and the operating table 1 is used to support the limit fixing component 2 and the punching component 3. It also comprises a limit fixing component 2 and a punching component 3, the punching component 3 is used to punch out screw holes on the armrest box base 12, the limit fixing component 2 comprises a pair of L-shaped limit blocks 20, a first rack 21 and a spring, a protrusion 23 is fixedly connected to the bottom of the L-shaped limit block 20, a plurality of square grooves 100 are provided on the top of the table top 10, the square groove 100 is plugged with one of the protrusions 23, one of the L-shaped limit blocks 20 is moved to be arranged opposite to the other end of the L-shaped limit block 20, and the protrusion 23 at the bottom is inserted into the square groove 100, and then the armrest box base 12 is fitted with the inner wall of the L-shaped limit block 20, so that one corner of the armrest box base 12 can be limited. A cavity 101 is provided inside the table 10, and the bottom of another protrusion 23 passes through the top wall of the table 10 and is slidably connected thereto. The rack 21 is rotatably installed between the inner walls on both sides of the cavity 101, and the teeth on the top of the rack 21 are engaged with the bottom of the protrusion 23. One end of the first spring 22 is fixedly connected to the bottom wall of the cavity 101, and the other end of the first spring 22 is fixedly connected to the bottom of one end of the rack 21. Move another L-shaped stopper 20 to make the protrusion 23 at its bottom slide along the cavity 101, and the bottom of the protrusion 23 pushes one end of the rack 21 to rotate toward the bottom, and the first spring 22 is compressed. After the L-shaped stopper 20 fits the side wall of the armrest box base 12, the first spring 22 rebounds, pushing the rack 21 to rotate toward the top and engage with the protrusion 23, thereby fixing the other L-shaped stopper 20. The two L-shaped stoppers 20 can fix the armrest box bases 12 of different sizes, thereby improving the punching accuracy.

[0026] The punching assembly 3 includes a support rod 30, a press 31 and an annular cutting edge 32. The support rod 30 is fixedly connected to one side of the table 10, and the top of the press 31 is fixedly connected to the top of the support rod 30. The press 31 and the annular cutting edge 32 are supported by the support rod 30. The bottom of the telescopic end of the press 31 is fixedly connected to the top of the annular cutting edge 32. When the press 31 works, its telescopic end pushes the annular hot cutting edge down to press and cut a screw hole on the armrest box base 12.

[0027] The punching assembly 3 also includes a push rod 33 and a second spring 34. One end of the second spring 34 is fixedly connected to the top of the push rod 33, and the other end of the second spring 34 is fixedly connected to the top wall of the annular cutting edge 32. The annular cutting edge 32 is slidably connected to the outer periphery of the push rod 33. The second spring 34 provides a thrust to the push rod 33, and the push rod 33 pushes the waste material cut from the armrest box base 12 downward to prevent the waste material from being stuck in the annular cutting edge 32. When the bottom of the annular cutting edge 32 fits the top of the armrest box base 12, the push rod 33 is located in the annular cutting edge 32. At this time, the second spring 34 contracts, and the push rod 33 slides into the annular cutting edge 32, and the annular cutting edge 32 can press and cut the armrest box base 12. When the bottom of the annular cutting edge 32 separates from the armrest box base 12, the bottom of the push rod 33 is separated from the annular cutting edge 32. At this time, the second spring 34 rebounds, pushing the push rod 33 to slide to the bottom and push the waste material out of the annular cutting edge 32.

[0028] The operating table 1 also includes a drawer 13, which passes through the side wall of one end of the base 11 and is slidably connected thereto, and a long slot 102 is provided on the top of the table 10. The waste cut from the armrest box base 12 can fall into the drawer 13 through the long slot 102, so that the waste can be collected and cleaned from the table 10.

[0029] The operating table 1 also includes a scraper 14 and a motor 15. One end of the scraper 14 is rotatably connected to the top of the table 10. An empty slot 103 is provided at the bottom of the table 10. The top wall of the empty slot 103 is fixedly connected to the top of the motor 15. The output shaft of the motor 15 passes through the top wall of the table 10 and is fixedly connected to the scraper 14. After punching, the armrest box base 12 is removed, and the L-shaped limit block 20 is moved to the edge of the table 10 to power on the motor 15. The output shaft drives the scraper 14 to rotate, and the waste on the top of the table 10 can be pushed into the long slot 102.

[0030] One end of the rack 21 is rotatably connected to the inner wall of the cavity 101, and the other end of the rack 21 passes through the side wall of the table 10 and is slidably connected thereto. Pressing one end of the rack 21 causes the rack 21 to rotate to the bottom of the cavity 101, at which time the rack 21 is separated from the protrusion 23, and the L-shaped stopper 20 can be moved away from the armrest box base 12.

[0031] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A precision punching die for an armrest box, comprising an operating table (1), the operating table (1) comprising a table top (10) and a base (11), the bottom of the table top (10) being fixedly connected to the top of the base (11), characterized in that: The device also includes a limit fixing component (2) and a punching component (3), wherein the punching component (3) is used to punch out screw holes on the armrest box base (12), and the limit fixing component (2) includes a pair of L-shaped limit blocks (20), a rack (21) and a first spring (22), wherein a protrusion (23) is fixedly connected to the bottom of the L-shaped limit block (20), and a plurality of square grooves (100) are provided on the top of the table top (10), and the square grooves (100) are plugged into and matched with one of the protrusions (23). The table top (10) is provided with a cavity (101) inside, the bottom of another protrusion (23) passes through the top wall of the table top (10) and is slidably connected thereto, the rack (21) is rotatably installed between the inner walls on both sides of the cavity (101), the teeth on the top of the rack (21) are snap-fitted with the bottom of the protrusion (23), one end of the first spring (22) is fixedly connected to the bottom wall of the cavity (101), and the other end of the first spring (22) is fixedly connected to the bottom of one end of the rack (21).

2. The armrest box precision punching die according to claim 1, characterized in that: The punching assembly (3) comprises a support rod (30), a press (31) and an annular cutting edge (32); the support rod (30) is fixedly connected to one side of the table top (10); the top of the press (31) is fixedly connected to the top of the support rod (30); and the bottom of the telescopic end of the press (31) is fixedly connected to the top of the annular cutting edge (32).

3. The armrest box precision punching die according to claim 2, characterized in that: The punching assembly (3) further comprises a push rod (33) and a second spring (34), one end of the second spring (34) being fixedly connected to the top of the push rod (33), the other end of the second spring (34) being fixedly connected to the top wall of the annular cutting edge (32), and the annular cutting edge (32) being slidably connected to the periphery of the push rod (33); When the bottom of the annular cutting edge (32) is in contact with the top of the armrest box base (12), the push rod (33) is located inside the annular cutting edge (32); When the bottom of the annular cutting edge (32) is separated from the armrest box base (12), the bottom of the push rod (33) is separated from the annular cutting edge (32).

4. The armrest box precision punching die according to claim 1, characterized in that: The operating table (1) further comprises a drawer (13), wherein the drawer (13) passes through a side wall at one end of the base (11) and is slidably connected thereto, and a long groove (102) is formed on the top of the table top (10).

5. The armrest box precision punching die according to claim 4, characterized in that: The operating table (1) further comprises a scraper (14) and a motor (15); one end of the scraper (14) is rotatably connected to the top of the table top (10); a hollow groove (103) is provided at the bottom of the table top (10); the top wall of the hollow groove (103) is fixedly connected to the top of the motor (15); and the output shaft of the motor (15) passes through the top wall of the table top (10) and is fixedly connected to the scraper (14).

6. The armrest box precision punching die according to claim 1, characterized in that: One end of the rack (21) is rotatably connected to the inner wall of the cavity (101), and the other end of the rack (21) passes through the side wall of the table top (10) and is slidably connected thereto.

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