Chain stamping die

Abstract

The utility model relates to a die, in particular to a chain stamping die which comprises a die I and the like. The die I and the die II are mounted on the stamping workbench, and the die I and the die II are matched with each other and clamp the placed chain; the supporting columns are symmetrically and fixedly installed on the side faces of the mold I and the mold II, and sliding grooves are formed in the lower portions of the supporting columns; the supporting table is mounted on the supporting column in a sliding manner through a guide rod I; and the mounting table is fixedly mounted at the top of the supporting column, and a plurality of openings are formed in the mounting table. The bidirectional lead screw is driven by the motor, the die I and the die II are driven by the bidirectional lead screw to move on the guide plate, so that the die I and the die II can clamp a placed chain, further lock the chain and accurately position and limit chain stamping in cooperation with the positioning pin, and the accuracy of chain stamping machining is improved.

Description

Technical Field

[0001] The utility model relates to a mold, in particular to a chain stamping mold. Background Art

[0002] The chain stamping mold is one of the key equipment in the chain manufacturing process. It is mainly used to form various components of the chain, such as chain links, pins, etc. from metal sheets through the stamping process. The design and manufacturing technology of this mold directly affect the quality, production efficiency and cost of the chain. Traditional stamping equipment fixes the chain with a vise, initially loosens the pin by knocking with a thimble, and then gradually ejects the pin using the spiral principle of the lead screw mechanism. This process requires careful operation to ensure uniform force transmission and avoid damaging the chain or the pin to achieve the smooth removal of the pin.

[0003] The patent with the patent publication number CN212370988U discloses a stamping mold for chain links, including a lower template and an upper template. An installation hole is penetrated through the middle position at the upper end of the upper template. Vertical rods are arranged at the positions near the corners at the bottom end of the upper template. Activity grooves are arranged at the positions near the corners at the upper end of the lower template. Arc-shaped grooves are arranged at the positions near both sides at the upper end of the lower template. Horizontal grooves are arranged on the inner walls of the arc-shaped grooves. A limit card slot is arranged at the position near the middle at the upper end of the lower template. Limit grooves are arranged on the inner side walls at both ends of the limit card slot. A stamping plate is arranged between the two limit grooves. A rotating shaft is arranged between the limit groove and the arc-shaped groove. A limit plate is sleeved on the rotating shaft. A T-shaped block is arranged at the position near the rear end at the bottom end of the limit plate. A collection groove is arranged at the bottom end of the limit card slot. Limit rods are arranged at the upper ends of both side walls of the collection groove.

[0004] In the above patent, by rotating the limit plate clockwise around the rotating shaft, the reset spring at the bottom end of the stamping plate will eject the old stamping plate at this time. Then, the limit slot is sleeved on the limit rod and moved along the limit rod into the limit card slot. At this time, the reset spring is compressed. Then, rotate the limit plate counterclockwise so that the T-shaped block at its bottom end moves to the leftmost end of the arc-shaped groove. The T-shaped block is arranged inside the horizontal groove and can play a role in limiting the vertical direction of the stamping plate. However, this mold lacks a precise limiting mechanism and cannot effectively position the chain accurately. Moreover, the entire device must rely on manual operation during use, that is, it is necessary to rotate the rotating shaft, which may occupy extra time and labor on the production line and affect the continuity and efficiency of the production line. Summary of the Utility Model

[0005] In order to overcome the shortcomings that the existing stamping mold lacks a precise limiting mechanism, cannot accurately position the chain and is too dependent on manual operation and is rather troublesome, the technical problem is to provide a chain stamping mold for automatic and precise stamping.

[0006] The technical solution of the present utility model is: a chain stamping die, which includes a die I and a die II. The die I and the die II are installed on the working table of the stamping machine. The die I and the die II are mutually adapted and clamp the placed chain. Support columns, which are symmetrically and fixedly installed on the sides of the die I and the die II, and the lower parts of the support columns are all provided with sliding grooves. A support table, which is slidably installed on the support columns through a guide rod I. An installation table, which is fixedly installed on the top of the support columns, and a plurality of openings are provided on the installation table. A hydraulic cylinder, which is fixedly installed on the top of the installation table. A stamping table, which is slidably installed on the lower side of the installation table through a guide rod II. The telescopic end of the hydraulic cylinder penetrates through the installation table and is connected to the stamping table. The lower end of the guide rod II is fixedly connected to the support table, and the upper end of the guide rod II penetrates through the stamping table and the installation table. A thimble, which is fixedly installed inside the stamping table, and the thimble extends downward and penetrates through the inside of the support table.

[0007] Preferably, a plurality of mutually cooperating elastic members are provided between the support table and the stamping table.

[0008] Preferably, guide pins are provided on both the die I and the die II. The guide pins are respectively fixedly arranged on the top surfaces of the die I and the die II. Jacks for cooperating with the guide pins are provided on the lower surface of the support table. When the support table is pressed on the die I and the die II, the guide pins on the die I and the die II will be inserted into the jacks.

[0009] Preferably, it further includes a bottom plate and a guide plate. The bottom plate is installed on the stamping workbench, and the bottom plate can be used as the installation base of the device. The guide plate is arranged on the bottom plate, and the die I and the die II are slidably installed on the bottom plate through the guide plate.

[0010] Preferably, it further includes a bidirectional lead screw and a motor. The motor is fixedly installed on the side of one of the guide plates. The bidirectional lead screw is installed on the output shaft of the motor, and the bidirectional lead screw is respectively threadedly connected to the die I and the die II.

[0011] Preferably, it further includes a positioning pin, which is slidably installed inside the die II, and a socket for cooperating with the positioning pin is also provided inside the die I. The positioning pin is used to lock the chain placed between the die I and the die II.

[0012] Preferably, the inner end part of the positioning pin is an inclined surface bent towards the middle. The inclined surface can be inserted into two adjacent connecting axles on the chain, so as to stably limit the chain placed between the die I and the die II.

[0013] Preferably, it further includes a sliding rod and a spring. The sliding rod is fixedly installed on the die II. The end of the sliding rod is fixedly connected to the outer end of the positioning pin. A spring is arranged on the sliding rod, and the spring is arranged between the die II and the positioning pin.

[0014] Preferably, it further includes a pressing plate. The pressing plate is fixedly installed on the outer side wall of the stamping table. The pressing plate is used to link and squeeze the positioning pin so that the positioning pin can be automatically inserted between the die I and the die II.

[0015] Preferably, the pressing plate is strip-shaped and its lower end is designed to be inclined outward. When the pressing plate is pressed down, the inclined end will press obliquely on the end of the positioning pin, so that the positioning pin positions the chain.

[0016] The beneficial effects of the present utility model are as follows: The present utility model drives the bidirectional lead screw through a motor, and uses the bidirectional lead screw to drive the die I and the die II to move on the guide plate, so that the die I and the die II can clamp the placed chain. Cooperating with the positioning pin to further lock the chain, accurately position and limit the chain stamping, improve the accuracy of chain stamping processing. At the same time, the hydraulic cylinder drives the support table and the stamping table to lift, and through the guide pins on the surfaces of the die I and the die II cooperating with the jacks of the support table, the die I and the die II can be accurately positioned, so that the die I and the die II can clamp the chain more firmly, ensuring the stamping quality of the chain. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0018] Figure 2 is a structural cross-sectional view of the support table, the installation table and the stamping table of the present utility model.

[0019] Figure 3 is a three-dimensional structural schematic diagram of the guide plate, the die I, the die II and the bidirectional lead screw of the present utility model.

[0020] Description of the reference numerals: 1-die I, 2-die II, 3-support column, 4-support table, 5-guide rod I, 6-installation table, 7-hydraulic cylinder, 8-stamping table, 9-guide rod II, 10-ejector pin, 11-bottom plate, 12-guide plate, 13-bidirectional lead screw, 14-motor, 15-positioning pin, 16-sliding rod, 17-spring, 18-pressing plate. Detailed Description of the Invention

[0021] The following is only the preferred embodiment of the present utility model, and does not limit the protection scope of the present utility model accordingly.

[0022] Embodiment: A chain stamping die, as shown in Figure 1 and Figure 2As shown in the figure, it includes die Ⅰ 1 and die Ⅱ 2. The die Ⅰ 1 and die Ⅱ 2 are installed on the stamping workbench. The die Ⅰ 1 and die Ⅱ 2 are adapted to each other and clamp the placed chain. Support columns 3 are symmetrically and fixedly installed on the sides of the die Ⅰ 1 and die Ⅱ 2, and chutes are opened at the lower parts of the support columns 3. A support table 4 is slidably installed on the support columns 3 through guide rods Ⅰ 5. An installation table 6 is fixedly installed on the top of the support columns 3, and a plurality of openings are opened on the installation table 6. A hydraulic cylinder 7 is fixedly installed on the top of the installation table 6. A stamping table 8 is slidably installed on the lower side of the installation table 6 through guide rods Ⅱ 9. The telescopic end of the hydraulic cylinder 7 penetrates through the installation table 6 and is connected to the stamping table 8. The lower end of the guide rod Ⅱ 9 is fixedly connected to the support table 4, and the upper end of the guide rod Ⅱ 9 penetrates through the stamping table 8 and the installation table 6. A thimble 10 is fixedly installed inside the stamping table 8. The thimble 10 extends downward and penetrates through the inside of the support table 4. The thimble 10 is used to punch the pins on the chain downward.

[0023] As Figure 2 shown in the figure, a plurality of cooperating elastic members are provided between the support table 4 and the stamping table 8. Guide pins are provided on both the die Ⅰ 1 and the die Ⅱ 2. The guide pins are respectively fixedly provided on the top surfaces of the die Ⅰ 1 and the die Ⅱ 2. Jacks for cooperating with the guide pins are opened on the lower surface of the support table 4. When the support table 4 is pressed on the die Ⅰ 1 and the die Ⅱ 2, the guide pins on the die Ⅰ 1 and the die Ⅱ 2 are respectively inserted into the corresponding jacks, realizing the precise fixation of the support table 4 to the die Ⅰ 1 and the die Ⅱ 2, so that the chain inside the die Ⅰ 1 and the die Ⅱ 2 is accurately clamped.

[0024] As Figure 2 and Figure 3 shown in the figure, it further includes a bottom plate 11 and a guide plate 12. The bottom plate 11 is installed on the stamping workbench. The bottom plate 11 can be used as the installation base of the device. The guide plate 12 is provided on the bottom plate 11. The die Ⅰ 1 and the die Ⅱ 2 are slidably installed on the bottom plate 11 through the guide plate 12. It also includes a bidirectional lead screw 13 and a motor 14. The motor 14 is fixedly installed on the side of one of the guide plates 12. The bidirectional lead screw 13 is installed on the output shaft of the motor 14, and the bidirectional lead screw 13 is respectively threadedly connected to the die Ⅰ 1 and the die Ⅱ 2.

[0025] As Figure 2As shown, it further includes a positioning pin 15, which is slidably installed inside the mold II 2, and a socket for mating with the positioning pin 15 is also provided inside the mold I 1. The positioning pin 15 is used to lock the chain placed between the mold I 1 and the mold II 2. The inner end part of the positioning pin 15 is an inclined surface bent towards the middle, and the inclined surface can be inserted into two adjacent connecting pins on the chain, so as to stably limit the position of the chain placed between the mold I 1 and the mold II 2.

[0026] As Figure 2 As shown, it further includes a sliding rod 16 and a spring 17. The sliding rod 16 is fixedly installed on the mold II 2. The end of the sliding rod 16 is fixedly connected to the outer end part of the positioning pin 15. A spring 17 is arranged on the sliding rod 16, and the spring 17 is arranged between the mold II 2 and the positioning pin 15. It further includes a pressing plate 18, which is fixedly installed on the outer side wall of the stamping table 8. The pressing plate 18 is used to link and press the positioning pin 15, so that the positioning pin 15 can be automatically inserted between the mold I 1 and the mold II 2. The pressing plate 18 is strip-shaped and its lower end part is designed to be inclined outwards. When the pressing plate 18 is pressed down, the inclined end will press obliquely on the end of the positioning pin 15, so that the positioning pin 15 positions the chain.

[0027] When the chain needs to be stamped, first fix the bottom plate 11 on the stamping workbench, and then start the motor 14 to drive the bidirectional lead screw 13. The bidirectional lead screw 13 rotating forward will drive the die Ⅰ1 and the die Ⅱ2 to slide away from each other on the guide plate 12 through the thread. The operator can then place the chain to be stamped between the die Ⅰ1 and the die Ⅱ2. After the chain is placed, similarly, reverse drive the bidirectional lead screw 13 through the motor 14. The bidirectional lead screw 13 rotating in reverse will drive the die Ⅰ1 and the die Ⅱ2 to slide and close on the guide plate 12 through the thread, and clamp the placed chain through the die Ⅰ1 and the die Ⅱ2. Then activate the hydraulic cylinder 7. The hydraulic cylinder 7 pushes the stamping table 8 downward through the telescopic rod. The stamping table 8 pressed by the hydraulic cylinder 7 will slide downward under the guiding action of the guide rod Ⅱ9. At this time, the downward moving stamping table 8 will synchronously drive the pressing plate 18 to move downward. The lower end of the downward moving pressing plate 18 will press on the end of the positioning pin 15. The pressed positioning pin 15 will slide inward under the guiding of the sliding rod 16 against the elastic force of the spring 17, so that when the positioning pin 15 is inserted between the die Ⅰ1 and the die Ⅱ2, the chain is further locked in advance. And the downward moving stamping table 8 will drive the support table 4 to move downward synchronously until the support table 4 moves downward and presses on the top surfaces of the die Ⅰ1 and the die Ⅱ2. The guiding pins on the top surfaces of the die Ⅰ1 and the die Ⅱ2 will be inserted into the jacks on the lower surface of the support table 4. Thus, the die Ⅰ1 and the die Ⅱ2 can be accurately positioned by the support table 4. At the same time, the hydraulic cylinder 7 continues to press the stamping table 8 downward. The stamping table 8 will continue to press downward against the elastic force of the elastic member. At this time, the ejector pin 10 will press downward synchronously with the stamping table 8. The ejector pin 10 will eject downward the pins on the corresponding chain in alignment, so that the pins on the accurately positioned chain are ejected by the ejector pin 10. Thus, a stamping operation on the chain can be completed once. Subsequently, control the opening and closing of the die Ⅰ1 and the die Ⅱ2 through the motor 14. The operator only needs to adjust the position of the chain to conveniently perform the stamping and disassembly operations on the entire chain.

[0028] The above are only examples of the present invention and are not used to limit the present invention. All equivalent replacements made within the principle of the present invention shall be included within the protection scope of the present invention. The content not elaborated in detail in the present invention belongs to the well-known prior art of those skilled in the art.

Claims

1. A chain stamping die, comprising: Die Ⅰ (1), which is installed on the stamping workbench; Die Ⅱ (2), which is installed on the stamping workbench, and Die Ⅰ (1) and Die Ⅱ (2) cooperate with each other; It is characterized in that it includes: Support columns (3), which are symmetrically and fixedly installed on the sides of Die Ⅰ (1) and Die Ⅱ (2), and chutes are opened in the lower parts of the support columns (3); Support table (4), which is slidably installed on the support columns (3) through guide rods Ⅰ (5); Installation table (6), which is fixedly installed on the tops of the support columns (3), and a plurality of openings are opened on the installation table (6); Hydraulic cylinder (7), which is fixedly installed on the top of the installation table (6); Stamping table (8), which is slidably installed on the lower side of the installation table (6) through guide rods Ⅱ (9), the telescopic end of the hydraulic cylinder (7) passes through the installation table (6) and is connected to the stamping table (8), the lower ends of the guide rods Ⅱ (9) are fixedly connected to the support table (4), and the upper ends of the guide rods Ⅱ (9) pass through the stamping table (8) and the installation table (6); Ejector pin (10), which is fixedly installed inside the stamping table (8), and the ejector pin (10) extends downward and passes through the inside of the support table (4).

2. The chain stamping die according to claim 1, characterized in that, A plurality of cooperating elastic members are provided between the support table (4) and the stamping table (8).

3. A chain stamping die according to claim 2, characterized in that, Guide pins are provided on both Die Ⅰ (1) and Die Ⅱ (2), the guide pins are respectively fixedly arranged on the top surfaces of Die Ⅰ (1) and Die Ⅱ (2), and jacks for cooperating with the guide pins are opened on the lower surface of the support table (4).

4. A chain stamping die according to claim 3, characterized in that, It further includes: Base plate (11), which is installed on the stamping workbench, and the base plate (11) can be used as the installation base of this device; Guide plate (12), which is arranged on the base plate (11), and Die Ⅰ (1) and Die Ⅱ (2) are slidably installed on the base plate (11) through the guide plate (12).

5. A chain stamping die according to claim 4, characterized in that, It further includes: Motor (14), which is fixedly installed on the side of one of the guide plates (12); Bi-directional lead screw (13), which is installed on the output shaft of the motor (14), and the bi-directional lead screw (13) is respectively threadedly connected to Die Ⅰ (1) and Die Ⅱ (2).

6. The chain stamping die according to claim 5, wherein It further includes: Positioning pin (15), which is slidably installed inside Die Ⅱ (2), and a socket for cooperating with the positioning pin (15) is also provided inside Die Ⅰ (1).

7. A chain stamping die according to claim 6, characterized in that, The inner end part of the positioning pin (15) is an inclined surface bent towards the middle, and the inclined surface can be inserted into two adjacent connecting axles on the chain.

8. A chain stamping die according to claim 7, characterized in that: It further includes: Sliding rod (16), which is fixedly installed on Die Ⅱ (2), and the end of the sliding rod (16) is fixedly connected to the outer end part of the positioning pin (15); A spring (17), the spring (17) being disposed between the die II (2) and the positioning pin (15).

9. A chain stamping die according to claim 8, characterized in that, Further included is: A pressing plate (18), the pressing plate (18) being fixedly installed on the outer side wall of the stamping table (8), the pressing plate (18) being used to link and extrude the positioning pin (15).

10. A chain stamping die according to claim 9, characterized in that: The pressing plate (18) is strip-shaped and its lower end is designed to be inclined outward.

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