Auto parts stamping die

Abstract

The invention relates to an automobile parts stamping die used in the field of automobile parts manufacturing. By fixing a pressing block at the top of an arc-shaped punching and extruding block and a punching column, and cooperating with the extruding block, the extruding block can be used to slide from right to left to sequentially press the pressing block downward, so that before the workpiece is notched, the workpiece is punched by the punching column on one side of the arc-shaped punching and extruding block, and the punching column is always kept penetrating the workpiece during the subsequent notching process, so as to ensure the positioning effect on one side of the workpiece, so that one side of the workpiece can be stably fixed and will not be offset during notching; by arranging an automatic discharge component on one side of the arc groove, when notching, the top block is received in the second elastic reset component under the extrusion effect of the workpiece, and after the workpiece is stamped and the arc-shaped punching and extruding block is reset upward, the top block moves upward under the action of the second elastic reset component, so as to lift one side of the formed workpiece upward, and the workpiece slides out of the die seat, so as to realize automatic discharge.

Description

Technical Field

[0001] The invention relates to a hardware forming device, in particular to an automobile accessory stamping die used in the field of automobile accessory manufacturing. Background Art

[0002] Auto parts include auto parts hardware. More specifically, auto parts hardware includes all kinds of hardware products needed in auto parts, such as bolts, nuts, fasteners, joints, etc. Among them, the most common fastener is the semi-circular ring clamp. The clamp is the most widely used fastener for hardware manufacturing. It requires a long metal workpiece to be transported to a forming device (i.e., a stamping die) for forming. At present, the existing forming device adopts a continuous die design, which first punches the workpiece and then moves it to the next position in the die for stamping. However, this design undoubtedly increases the processing steps of the workpiece. Punching first and then stamping doubles the working stroke of the hydraulic rod used for power support, and the two movements of the workpiece are prone to deviation.

[0003] In order to solve the above problems, after searching, the specification of patent application number CN202320786097.8 discloses a fastener forming device for hardware manufacturing, including a workbench and a discharge assembly. The workbench mainly includes a base, a hydraulic rod and a movable plate. A lower die is installed on the top of the base, a connecting plate is fixedly installed on the bottom of the movable plate, a discharge port is opened at the bottom of the lower die, a transmission column and a punching column are fixedly connected to the bottom of the connecting plate, and a limit ring is fixedly sleeved on the outer surface of the transmission column. When the bottom bulge of the upper die extrude the workpiece, the left side of the workpiece can move to the right for extrusion adaptation. At the same time, the transmission column drives the upper die while squeezing the spring three and generating a reaction force, so as to avoid the connection plate driving the punching column to extrude and punch the workpiece before the workpiece is completely extruded and formed, thereby realizing the operation of first extruding and forming the workpiece and then punching the hole, reducing the forming process of the workpiece and improving the efficiency of the device.

[0004] However, only using the elastic force of the spring to squeeze and fix the workpiece with the fixing plate has a poor fixing effect on the workpiece. Relative to the pulling force generated by the stamping, the workpiece is still prone to pull back, resulting in deviation in the punching position. Therefore, this solution proposes an automotive parts stamping die to improve the above problem. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to use only the elastic force of the spring to squeeze and fix the workpiece by the fixing plate, which has a poor fixing effect on the workpiece. Compared with the pulling force generated by the stamping, the workpiece is still prone to pull back, resulting in deviation in the punching position.

[0006] In order to solve the above problems, the present invention provides an automobile parts stamping die, including a die base, an arc groove and a reserved hole are opened in the die base, and two reserved holes are provided, and the two reserved holes are respectively located on both sides of the arc groove:

[0007] A fixed platform is provided on the upper side of the mold base, and the four corners of the lower end of the fixed platform are fixed to the four corners of the upper end of the mold base through support columns;

[0008] An arc-shaped punching and extruding block is arranged in the middle of the fixed platform corresponding to the upper side of the arc-shaped groove, and punching columns are arranged in the upper side of the reserved holes corresponding to the two sides of the arc-shaped groove;

[0009] A sliding hole is provided in the fixed platform for the arc-shaped punching and extruding block and the punching column to slide vertically;

[0010] The tops of the arc-shaped punching and extruding blocks and the punching columns are both fixed with a pressing block, and an elastic reset member 1 is fixed between the pressing block and the fixed platform;

[0011] An extrusion block is installed on the top of the fixed platform for horizontal sliding, and a driving component for driving the extrusion block to slide horizontally and reciprocally is installed on the side of the fixed platform;

[0012] The length of the extrusion block is not less than the distance between the two punching columns.

[0013] In the above-mentioned fastener forming device for hardware manufacturing, by fixing the pressing block at the top of the arc-shaped punching and extruding block and the punching column, and cooperating with the extruding block, the extruding block can be used to slide from right to left to sequentially press the pressing block downward, so that before punching the workpiece, the punching column on one side of the arc-shaped punching and extruding block is used to punch the workpiece, and the punching column is always kept penetrating the workpiece during the subsequent punching process, thereby ensuring the positioning effect on one side of the workpiece, so that one side of the workpiece can be stably fixed during punching and no displacement will occur.

[0014] As a further supplement to the present application, a limiting groove adapted to the lower pressing block is provided at the upper end of the fixing platform, and an elastic reset member is located on the inner side of the limiting groove.

[0015] As a further supplement to the present application, a slope is provided on one side of the upper end of the lower pressing block, and a slope is also provided on the side of the extrusion block close to the lower pressing block, to ensure that the slope of the extrusion block fits with the slope of the lower pressing block, so that the lower pressing block can be easily squeezed downward.

[0016] As a further supplement to the present application, the drive assembly includes a drive motor and a threaded rod;

[0017] The driving motor is fixed to the side end of the fixed platform, the threaded rod thread penetrates the extrusion block, and one end of the threaded rod is coaxially fixed with the output end of the driving motor. The driving motor drives the threaded rod to rotate, and the rotating threaded rod drives the extrusion block to slide on the upper end surface of the fixed platform. The driving motor drives the threaded rod to rotate forward and reverse alternately, thereby realizing the reciprocating sliding of the extrusion block on the upper end surface of the fixed platform.

[0018] As a further supplement to the present application, a limiting slider is fixed to the lower end of the extrusion block, and a limiting groove for sliding cooperation of the limiting slider is provided on the upper end surface of the fixed platform.

[0019] As a further supplement to the present application, a limit baffle is fixed to the upper end of the mold base on the side away from the workpiece conveying, and the limit baffle is used to limit the position and length of the workpiece.

[0020] As another improvement of the present application, an automatic discharging assembly is installed at the inner bottom end of one side of the arc-shaped groove.

[0021] As a supplement to another improvement of the present application, the automatic discharging assembly includes a top block and an elastic reset member 2;

[0022] A receiving groove for receiving the top block is provided at the inner bottom end of one side of the arc-shaped groove, and the top block is fixed to the inner bottom end of the receiving groove by a second elastic reset member;

[0023] When the top block is not subjected to external force, the horizontal plane where the top surface of the top block is located is lower than the horizontal plane where the upper end surface of the die base is located, so that it will not cause obstruction to the workpiece when conveying the workpiece. When punching grooves, the top block is received in the elastic reset member 2 under the extrusion of the workpiece. After the workpiece is punched (including truncation) and the arc-shaped punching extrusion block is reset upward, the top block moves upward under the action of the elastic reset member 2, thereby lifting one side of the formed workpiece upward, and the workpiece slides out of the die base to realize automatic unloading.

[0024] In summary, by fixing the pressing block at the top of the arc-shaped punching block and the punching column, and cooperating with the action of the extrusion block, the extrusion block can be used to slide from right to left to press the pressing block downward in turn, so that before punching the workpiece, the workpiece can be punched by the punching column on one side of the arc-shaped punching block, and the punching column is always kept penetrating the workpiece during the subsequent punching process, so as to ensure the positioning effect on one side of the workpiece, so that one side of the workpiece can be stably fixed during punching and will not shift; when the top block is not subject to external force, the horizontal plane where the top surface of the top block is located is lower than the horizontal plane where the upper end surface of the die base is located, so that the workpiece will not be obstructed when conveying the workpiece, and when punching the groove, the top block is received in the elastic reset member 2 under the extrusion action of the workpiece, and after the workpiece is punched (including truncation) and the arc-shaped punching block is reset upward, the top block moves upward under the action of the elastic reset member 2, thereby lifting one side of the formed workpiece upward, and the workpiece slides out of the die base, realizing automatic unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the first embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the front plan structure of the first embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the front plan structure of the first embodiment of the present application in a workpiece conveying state;

[0028] Figure 4 This is a schematic diagram of the front planar structure of the workpiece in the first embodiment of the present application after the first punching is completed;

[0029] Figure 5 This is a schematic diagram of the front plan structure of the workpiece in the first embodiment of the present application after the workpiece is notched;

[0030] Figure 6 This is a schematic diagram of the front planar structure of the workpiece in the state where the second punching is completed in the first embodiment of the present application;

[0031] Figure 7 This is a schematic diagram of the side plan structure of the second embodiment of the present application;

[0032] Figure 8 for Figure 7 A in the figure is an enlarged structural diagram.

[0033] Description of the numbers in the figure:

[0034] 1. Die base; 2. Fixed table; 3. Arc groove; 4. Reserved hole; 5. Arc punching and extrusion block; 6. Punching column; 7. Sliding hole; 8. Pressing block; 9. Limiting groove; 10. Elastic reset part 1; 11. Extrusion block; 12. Driving motor; 13. Threaded rod; 14. Limiting slider; 15. Limiting slide groove; 16. Limiting baffle; 17. Top block; 18. Elastic reset part 2; 19. Storage groove. DETAILED DESCRIPTION

[0035] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0036] The first implementation method:

[0037] The present invention provides a stamping die for automobile parts, please refer to Figure 1 and Figure 2 , including a mold base 1, an arc groove 3 and a reserved hole 4 are opened in the mold base 1, two reserved holes 4 are provided, and the two reserved holes 4 are respectively located on both sides of the arc groove 3.

[0038] Among them, a fixed platform 2 is arranged on the upper side of the mold base 1, and the four corners of the lower end of the fixed platform 2 are fixed to the four corners of the upper end of the mold base 1 through supporting columns. An arc-shaped punching and extrusion block 5 is arranged in the middle of the fixed platform 2 corresponding to the upper side of the arc groove 3, and punching columns 6 are arranged on both sides of the arc groove 3 corresponding to the upper side of the reserved holes 4. The fixed platform 2 is provided with sliding holes 7 for vertical sliding of the arc-shaped punching and extrusion block 5 and the punching column 6.

[0039] Among them, the top of the arc-shaped punching extrusion block 5 and the punching column 6 are fixed with a pressing block 8, an elastic reset member 10 is fixed between the pressing block 8 and the fixed table 2, an extrusion block 11 is horizontally slidably installed on the top of the fixed table 2, and a driving component for driving the extrusion block 11 to slide horizontally and reciprocatingly is installed on the side end of the fixed table 2, and the length of the extrusion block 11 is not less than the distance between the two punching columns 6.

[0040] In the above-mentioned fastener forming device for hardware manufacturing, by fixing the pressing block 8 at the top of the arc-shaped punching and extruding block 5 and the punching column 6, and cooperating with the extruding block 11, the extruding block 11 can be used to slide from right to left to sequentially press the pressing block 8 downward, so that before punching the workpiece, the punching column 6 on one side of the arc-shaped punching and extruding block 5 is used to punch the workpiece, and the punching column 6 is always kept penetrating the workpiece during the subsequent punching process, thereby ensuring the positioning effect on one side of the workpiece, so that one side of the workpiece can be stably fixed during punching without displacement.

[0041] Among them, Figure 2 As shown, a limiting groove 9 adapted to the lower pressing block 8 is provided in the fixing platform 2 , and an elastic reset member 10 is located on the inner side of the limiting groove 9 .

[0042] Among them, Figure 1 and Figure 2 As shown, a slope is provided on one side of the upper end of the lower pressing block 8, and a slope is also provided on the side of the extrusion block 11 close to the lower pressing block 8, ensuring that the slope of the extrusion block 11 fits with the slope of the lower pressing block 8, so that the lower pressing block 8 can be easily squeezed downward.

[0043] Among them, Figure 1 and Figure 2 As shown, the driving assembly includes a driving motor 12 and a threaded rod 13. The driving motor 12 is fixed to the side end of the fixed table 2. The threaded rod 13 threads through the extrusion block 11, and one end of the threaded rod 13 is coaxially fixed with the output end of the driving motor 12. The driving motor 12 drives the threaded rod 13 to rotate, and the rotating threaded rod 13 drives the extrusion block 11 to slide on the upper end surface of the fixed table 2. The driving motor 12 drives the threaded rod 13 to rotate forward and reverse alternately, thereby realizing the reciprocating sliding of the extrusion block 11 on the upper end surface of the fixed table 2.

[0044] A limiting slide block 14 is fixed to the lower end of the extrusion block 11 , and a limiting slide groove 15 for slidingly cooperating with the limiting slide block 14 is arranged on the upper end surface of the fixing platform 2 .

[0045] Among them, Figure 2 As shown, a limit baffle 16 is fixed to the upper end of the die base 1 on the side away from the workpiece conveying, and the limit baffle 16 is used to limit the position and length of the workpiece.

[0046] like Figure 3-6 As shown, the workpiece is conveyed from left to right until the workpiece abuts against the limit baffle 16, and the conveying is stopped. At this time, the driving motor 12 is used to drive the threaded rod 13 to rotate forward, and the rotating threaded rod 13 drives the extrusion block 11 to slide on the upper end surface of the fixed table 2. The sliding extrusion block 11 first squeezes the lower pressing block 8 on the upper side of the punching column 6 on the right, so that the punching column 6 moves down to punch the workpiece, and then the extrusion block 11 continues to slide and squeeze the lower pressing block 8 on the upper side of the arc punching block 5, so that the arc punching block 5 moves down to punch the workpiece. During the punching process, the extrusion block 11 keeps squeezing the lower pressing block 8 on the upper side of the right punching column 6 The pressing block 8 is used to always keep the punching column 6 penetrating the workpiece, thereby ensuring the positioning effect on one side of the workpiece, so that one side of the workpiece can be stably fixed during punching without deviation; then the extrusion block 11 continues to slide and squeeze the lower pressing block 8 on the upper side of the punching column 6 on the left, so that the punching column 6 moves down to punch the workpiece, and the workpiece is completely formed at this time; then the driving motor 12 is used to drive the threaded rod 13 to reverse, drive the extrusion block 11 to slide in the opposite direction, and the punching column 6 and the arc-shaped punching extrusion block 5 are reset upward under the elastic action of the elastic reset member 10, waiting for the next punching action.

[0047] It should be further explained that a workpiece cutting knife (not shown) can be provided at the leftmost end of the fixed platform 2. Similarly, a pressing block 8 is also provided at the upper end of the cutting knife to realize the automatic cutting function of the workpiece.

[0048] Second implementation method:

[0049] Based on Implementation 1, this implementation adds the following structure, so that this application has an automatic unloading function, and the specific settings are as follows: Figure 7 and Figure 8 As shown, an automatic discharging assembly is installed at the inner bottom end of one side of the arc-shaped groove 3. Specifically, the automatic discharging assembly includes a top block 17 and an elastic reset member 18, wherein the elastic reset member 10 and the elastic reset member 18 are preferably compression springs, and a receiving groove 19 for accommodating the top block 17 is provided at the inner bottom end of one side of the arc-shaped groove 3, and the top block 17 is fixed to the inner bottom end of the receiving groove 19 by the elastic reset member 18.

[0050] Among them, when the top block 17 is not subjected to external force, the horizontal plane where the top surface is located is lower than the horizontal plane where the upper end surface of the die base 1 is located, so that it will not cause obstruction to the workpiece when conveying the workpiece. When punching grooves, the top block 17 is received in the elastic reset member 18 under the extrusion of the workpiece. After the workpiece is punched (including truncation) and the arc-shaped punching and extrusion block 5 is reset upward, the top block 17 moves upward under the action of the elastic reset member 18, thereby lifting one side of the formed workpiece upward, and the workpiece slides out of the die base 1 to realize automatic unloading.

[0051] Compared with the prior art, in this solution, by fixing the pressing block 8 at the top of both the arc-shaped punching and extruding block 5 and the punching column 6, and cooperating with the extruding block 11, the extruding block 11 can be used to slide from right to left to sequentially press the pressing block 8 downward, so that before punching the workpiece, the punching column 6 on one side of the arc-shaped punching and extruding block 5 is used to punch the workpiece, and the punching column 6 is always kept penetrating the workpiece during the subsequent punching process, thereby ensuring the positioning effect on one side of the workpiece, so that one side of the workpiece can be stably fixed during punching without displacement;

[0052] Compared with the prior art, in the present solution, an automatic unloading component is installed at the inner bottom end of one side of the arc groove 3. When the top block 17 is not subjected to external force, the horizontal plane where the top surface is located is lower than the horizontal plane where the upper end surface of the die base 1 is located. In this way, there will be no obstruction to the workpiece when it is transported. When punching the groove, the top block 17 is received in the elastic reset member 18 under the extrusion of the workpiece. After the workpiece is punched (including truncation) and the arc punching extrusion block 5 is reset upward, the top block 17 moves upward under the action of the elastic reset member 18, thereby lifting one side of the formed workpiece upward, and the workpiece slides out of the die base 1, realizing automatic unloading.

[0053] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A stamping die for automobile parts, comprising a die base (1), wherein the die base (1) is provided with an arc-shaped groove (3) and a reserved hole (4), wherein two reserved holes (4) are provided, and the two reserved holes (4) are respectively located on both sides of the arc-shaped groove (3), wherein: A fixing platform (2) is provided on the upper side of the mold base (1), and the four corners of the lower end of the fixing platform (2) are fixed to the four corners of the upper end of the mold base (1) via support columns; An arc-shaped punching and extrusion block (5) is arranged in the middle of the fixing platform (2) at a position just above the arc-shaped groove (3), and punching columns (6) are arranged on both sides of the arc-shaped groove (3) at a position just above the reserved holes (4); The fixed platform (2) is provided with a sliding hole (7) for the arc-shaped punching and extruding block (5) and the punching column (6) to slide vertically; A lower pressing block (8) is fixed to the top of each of the arc-shaped punching and extruding block (5) and the punching column (6), and an elastic reset member (10) is fixed between the lower pressing block (8) and the fixing platform (2); An extrusion block (11) is mounted on the top end of the fixed platform (2) in a horizontally slidable manner, and a driving component for driving the extrusion block (11) to slide horizontally and reciprocally is mounted on the side end of the fixed platform (2); The length of the extrusion block (11) is not less than the distance between the two punching columns (6); A limiting groove (9) adapted to the lower pressing block (8) is provided inside the fixing platform (2), and the elastic return member (10) is located inside the limiting groove (9); An inclined surface is provided on one side of the upper end of the lower pressing block (8), and an inclined surface is also provided on the side of the extrusion block (11) close to the lower pressing block (8); The driving assembly comprises a driving motor (12) and a threaded rod (13); The drive motor (12) is fixed to the side end of the fixed platform (2), the threaded rod (13) is threadedly passed through the extrusion block (11), and one end of the threaded rod (13) is coaxially fixed to the output end of the drive motor (12); A limiting slide block (14) is fixed at the lower end of the extrusion block (11), and a limiting slide groove (15) for sliding engagement with the limiting slide block (14) is provided on the upper end surface of the fixing platform (2).

2. The automotive parts stamping die according to claim 1, characterized in that: A limiting baffle (16) is fixed to the upper end of the die base (1) on a side away from the workpiece conveyance.

3. The automotive parts stamping die according to claim 1, characterized in that: An automatic discharging assembly is installed at the inner bottom end of one side of the arc-shaped groove (3).

4. The automotive parts stamping die according to claim 3, characterized in that: The automatic discharging assembly comprises a top block (17) and a second elastic reset member (18); A receiving groove (19) for receiving the top block (17) is provided at the inner bottom end of one side of the arc-shaped groove (3); the top block (17) is fixed to the inner bottom end of the receiving groove (19) by means of the second elastic reset member (18); When the top block (17) is not subjected to external force, the horizontal plane where the top surface is located is lower than the horizontal plane where the upper end surface of the mold base (1) is located.

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