Combined spring pin structure and stamping die

Abstract

The utility model discloses a combined type elastic pressing pin structure and a stamping die. The combined type elastic pressing pin structure comprises an elastic pressing base, the bottom end face of the elastic pressing middle sleeve is in butt joint with the top end face of the elastic pressing base; the elastic pressing fixing plate is arranged at the upper end of the elastic pressing middle sleeve in a sleeving manner, so that a spring mounting groove is formed by the elastic pressing fixing plate, the elastic pressing middle sleeve and the elastic pressing base; the spring is installed in the spring installation groove, and the two ends of the spring abut against the elastic pressing fixing plate and the elastic pressing base respectively; the gasket is positioned on the upper surfaces of the elastic pressing middle sleeve and the elastic pressing fixing plate; the connecting piece sequentially penetrates through a gasket and an elastic pressing middle sleeve to be fixed to the elastic pressing base, and the gasket tightly presses the elastic pressing middle sleeve and the elastic pressing fixing plate to form the combined elastic pressing pin. According to the utility model, the spring pin structure of which the elastic force is adjusted in advance can be directly and integrally mounted in the mounting hole of the upper die holder, and the elastic force does not need to be readjusted during each disassembly and assembly; the structure is simple, installation is convenient, cost is effectively reduced, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically to a combined spring-loaded pin structure and a stamping die. Background Technology

[0002] When installing a conventional spring-loaded pin structure, such as Figure 1 As shown, the spring pin A, spring B, and nut C need to be installed into the upper die seat hole D in sequence. Then, the spring force of spring B is adjusted by adjusting the depth of nut C to ensure the unloading force.

[0003] However, the existing high-speed stamping dies are designed with a large number of spring-loaded pin structures. If conventional spring-loaded pin structures are still used, nuts need to be tightened every time they are installed. In actual operation, it is impossible to guarantee that the nuts are tightened to a consistent depth each time. This will result in inconsistent spring force and uneven stress, affecting the die unloading process. Furthermore, the spring-loaded pin structure needs to be removed and reinstalled every time the die is disassembled for maintenance, which is time-consuming and labor-intensive, increases the workload of maintenance workers and the duration of maintenance, causing inconvenience to workers and increasing labor costs.

[0004] Therefore, it is necessary to provide a new approach to solve the aforementioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a combined spring-loaded pin structure. The spring-loaded pin structure with pre-adjusted elasticity can be directly installed into the mounting hole of the upper mold base without the need to readjust the elasticity each time it is disassembled and installed. The structure is simple, easy to install, and effectively reduces costs while improving work efficiency.

[0006] The technical solution of this utility model is summarized as follows:

[0007] A combined spring-loaded pin structure, comprising:

[0008] Spring-loaded base;

[0009] A spring-loaded sleeve, the bottom end face of which is in contact with the top end face of the spring-loaded base;

[0010] A spring-loaded fixing plate is sleeved on the upper end of the spring-loaded middle sleeve, so as to form a spring mounting groove together with the spring-loaded middle sleeve and the spring-loaded base;

[0011] A spring is installed in the spring mounting slot, and both ends of the spring abut against the spring-loaded fixing plate and the spring-loaded base, respectively.

[0012] Washers, the washers being located on the upper surface of the spring-loaded sleeve and the spring-loaded fixing plate;

[0013] A connector passes through the washer, the spring-loaded middle sleeve, and is fixed to the spring-loaded base in sequence. The washer presses against the spring-loaded middle sleeve and the spring-loaded fixing plate to form a combined spring-loaded pin.

[0014] Preferably, the spring-loaded base is T-shaped and includes a base and a main body; wherein the spring is sleeved on the spring-loaded base and the main body.

[0015] Preferably, the diameter of the main body is equal to the diameter of the spring-loaded sleeve.

[0016] Preferably, the thickness of the spring-loaded fixing plate is adjustable.

[0017] Preferably, the spring-loaded base and the spring-loaded sleeve are provided with through holes along the circumferential direction that are adapted to the connector.

[0018] Preferably, the connector is a screw, and the through hole is a threaded hole.

[0019] Preferably, the diameter of the through hole is greater than or equal to 10 mm.

[0020] This utility model also provides a stamping die, including an upper die base, a stripper plate, and a combined spring-loaded pin structure as described above installed between the upper die base and the stripper plate.

[0021] Preferably, it further includes: a limiting strip, which is fixed to the unloading plate and located between the unloading plate and the upper mold base; the combined spring-loaded pin is installed with the limiting strip.

[0022] Preferably, the upper mold base has a mounting hole, and the combined spring-loaded pin is inserted into the mounting hole.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This utility model provides a combined spring-loaded pin structure. When the washer, spring-loaded middle sleeve, and spring-loaded base are fixed by the connecting parts, the washer presses against the spring-loaded middle sleeve and the spring-loaded fixing plate, so that the two ends of the spring abut against the spring-loaded fixing plate and the spring-loaded base, completing the pre-compression of the spring and forming a combined spring-loaded pin structure. That is, the spring-loaded pin structure with pre-adjusted elasticity can be directly installed into the mounting hole of the upper mold base as a whole, without the need to readjust the elasticity every time it is disassembled and installed. The structure is simple, easy to install, effectively reducing costs while improving work efficiency. In addition, the setting of the washer can further absorb vibration, reduce the direct impact of the connecting parts on the spring-loaded middle sleeve and the spring-loaded fixing plate, and avoid damage. The setting of the washer also makes the spring-loaded middle sleeve and the spring-loaded fixing plate evenly stressed, avoiding local stress concentration, optimizing the overall structure, improving structural stability, and extending service life.

[0025] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the installation structure of the spring-loaded pin in the prior art;

[0028] Figure 2 This is a schematic diagram of the combined spring-loaded pin structure in Embodiment 1 of this utility model;

[0029] Figure 3 This is a schematic diagram of the installation of the combined spring-loaded pin and the upper mold base in Embodiment 2 of this utility model;

[0030] Figure 4 This is a schematic diagram of the assembly of the combined spring-loaded pin and the mold in Embodiment 2 of this utility model.

[0031] In the diagram: 1. Stamping die;

[0032] 10. Combined spring-loaded pin; 11. Spring-loaded base; 111. Base; 112. Main body; 12. Spring-loaded middle sleeve; 13. Spring-loaded fixing plate; 14. Spring; 15. Washer; 16. Connector; 17. Spring mounting groove; 101. Through hole; 20. Upper mold base; 21. Mounting hole; 30. Unloading plate; 40. Limiting strip. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0034] In the accompanying drawings, shapes and dimensions may be enlarged for clarity, and the same reference numerals will be used in all figures to indicate the same or similar parts.

[0035] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, and lower are defined relative to the structure shown in the accompanying drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These are relative concepts and may vary depending on their location and usage. Therefore, these or other orientations should not be interpreted as restrictive terms.

[0036] Terms involving attachment, connection, etc. (e.g., “connection” and “attachment”) refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through an intermediate structure, as well as movable or rigid attachments or relationships, unless otherwise explicitly stated.

[0037] Example 1

[0038] This utility model embodiment provides a combined spring-loaded pin structure, combined with Figures 2-4 As shown, it includes:

[0039] spring-loaded base 11;

[0040] A spring-loaded sleeve 12, the bottom end face of which is in contact with the top end face of the spring-loaded base 11;

[0041] A spring-loaded fixing plate 13 is sleeved on the upper end of the spring-loaded middle sleeve 12, so as to form a spring mounting groove 17 together with the spring-loaded middle sleeve 12 and the spring-loaded base 11.

[0042] Spring 14 is installed in the spring mounting groove 17, and the two ends of the spring 14 abut against the spring-loaded fixing plate 13 and the spring-loaded base 11 respectively.

[0043] Washer 15, the washer 15 is located on the upper surface of the spring-loaded middle sleeve 12 and the spring-loaded fixing plate 13;

[0044] Connector 16 passes through the washer 15 and the spring-loaded middle sleeve 12 in sequence and is fixed to the spring-loaded base 11. The washer 15 presses the spring-loaded middle sleeve 12 and the spring-loaded fixing plate 13 to form a combined spring-loaded pin 10.

[0045] In this embodiment, when the washer 15, the spring-loaded middle sleeve 12, and the spring-loaded base 11 are fixed by the connector 16, the washer 15 presses the spring-loaded middle sleeve 12 and the spring-loaded fixing plate 13, so that the two ends of the spring 14 abut against the spring-loaded fixing plate 13 and the spring-loaded base 11, completing the pre-compression of the spring 14 and forming a combined spring-loaded pin 10; that is, the spring-loaded pin with the pre-adjusted elastic force can be directly installed into the mounting hole 21 of the upper mold base 20 as a whole, without the need to readjust the elastic force every time it is disassembled and installed; the structure is simple, the installation is convenient, and the cost is effectively reduced while improving work efficiency.

[0046] Furthermore, the installation of the washer 15 can further absorb vibration, reduce the direct impact of the connector 16 on the spring-loaded sleeve 12 and the spring-loaded fixing plate 13, and prevent damage. In addition, the installation of the washer 15 makes the spring-loaded sleeve 12 and the spring-loaded fixing plate 13 bear force evenly, avoid local stress concentration, optimize the overall structure, improve structural stability, and extend service life.

[0047] In some embodiments, the spring-loaded base 11 is T-shaped and includes a base 111 and a main body 112; wherein the spring 14 is sleeved on the spring-loaded middle sleeve 12 and the main body 112.

[0048] Further, the diameter D1 of the main body 112 is equal to the diameter D2 of the spring-loaded sleeve 12; preferably, the diameter D1 of the main body 112 and the diameter D2 of the spring-loaded sleeve 12 are 15-20 mm; in this embodiment, the diameter D1 of the main body 112 and the diameter D2 of the spring-loaded sleeve 12 are 17.5 mm.

[0049] Further, the diameter D3 of the base 111 is equal to the diameter D4 of the spring-loaded fixing plate 13; preferably, the diameter D3 of the base 111 and the diameter D4 of the spring-loaded fixing plate 13 are 30-40mm; in this embodiment, the diameter D3 of the base 111 and the diameter D4 of the spring-loaded fixing plate 13 are 36mm.

[0050] During assembly, first combine the spring-loaded base 11 with the spring-loaded middle sleeve 12, then put the spring 14 on the main body 112 and the spring-loaded middle sleeve 12, then assemble the spring-loaded fixing plate 13 with the spring-loaded middle sleeve 12, then adjust the position of the washer 15, and then fix the connector 16 through the washer 15, the spring-loaded middle sleeve 12 and the spring-loaded base 11 in sequence. At this time, the two ends of the spring 14 are respectively pressed against the lower end face of the spring-loaded fixing plate 13 and the upper end face of the base 111.

[0051] Furthermore, the thickness of the spring-loaded fixing plate 13 is adjustable. By adjusting the thickness of the spring-loaded fixing plate 13, the pre-compression of the spring 14 can be adjusted, thereby changing its initial tension in the spring-loaded pin and thus adjusting the magnitude of the spring force.

[0052] In some embodiments, the spring-loaded base 11 and the spring-loaded sleeve 12 are provided with through holes 101 in the circumferential direction that are adapted to the connector 16.

[0053] Furthermore, the connector 16 is a screw, and the through hole 101 is a threaded hole; the threaded connection has higher stability and can withstand greater loads and impacts; and the threaded connection allows for quick and easy disassembly and reassembly, facilitating maintenance and repair.

[0054] Furthermore, the diameter of the through hole 101 is greater than or equal to 10 mm.

[0055] In this embodiment, the screw used is M10X60mm.

[0056] In some embodiments, the spring-loaded sleeve 12 is machined by a grinding machine with high precision, so that the surface of the spring-loaded sleeve 12 has good flatness and ensures uniform force distribution.

[0057] Example 2

[0058] This utility model embodiment also provides a stamping die 1, combined with... Figures 2-4 As shown, it includes an upper mold base 20, a stripper plate 30, and a combined spring-loaded pin 10 as described in Embodiment 1, which is installed between the upper mold base 20 and the stripper plate 30.

[0059] In some embodiments, the device further includes: a limiting strip 40, which is fixed to the unloading plate 30 and located between the unloading plate 30 and the upper mold base 20; and the combined spring-loaded pin 10 is installed with the limiting strip 40. Specifically, the spring-loaded base 11 of the combined spring-loaded pin 10 is installed with the limiting strip 40.

[0060] The limiting strip 40 is fixedly installed on the unloading plate 30 by screws.

[0061] Furthermore, the upper die base 20 has a mounting hole 21, and the combined spring-loaded pin 10 is inserted into the mounting hole 21. Specifically, during installation, the combined spring-loaded pin 10 is assembled and the spring force is adjusted in advance, and then directly inserted into the mounting hole 21. During maintenance of the stamping die 1, the combined spring-loaded pin 10 can be completely removed by rotating the upper die base 20. After maintenance, it can be easily and quickly installed back into the mounting hole 21 of the upper die base 20 without having to tighten the nuts one by one. Maintenance workers can easily and quickly complete the installation of the spring-loaded pin.

[0062] The number of combined spring-loaded pins 10 set in the stamping die 1 is 100-200.

[0063] In this embodiment, a combined spring-loaded pin 10 is used. That is, the spring-loaded pin structure with pre-adjusted elasticity can be directly installed into the mounting hole 21 of the upper mold base 20 without readjusting the elasticity each time it is disassembled and installed. The structure is simple, the installation is convenient, and the cost is effectively reduced while improving work efficiency.

[0064] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A combined spring-loaded pin structure, characterized in that, include: Spring-loaded base; A spring-loaded sleeve, the bottom end face of which is in contact with the top end face of the spring-loaded base; A spring-loaded fixing plate is sleeved on the upper end of the spring-loaded middle sleeve, so as to form a spring mounting groove together with the spring-loaded middle sleeve and the spring-loaded base; A spring is installed in the spring mounting slot, and both ends of the spring abut against the spring-loaded fixing plate and the spring-loaded base, respectively. Washers, the washers being located on the upper surface of the spring-loaded sleeve and the spring-loaded fixing plate; A connector passes through the washer, the spring-loaded middle sleeve, and is fixed to the spring-loaded base in sequence. The washer presses against the spring-loaded middle sleeve and the spring-loaded fixing plate to form a combined spring-loaded pin.

2. The combined spring-loaded pin structure as described in claim 1, characterized in that: The spring-loaded base is T-shaped and includes a base and a main body; wherein the spring is sleeved on the spring-loaded base and the main body.

3. The combined spring-loaded pin structure as described in claim 2, characterized in that: The diameter of the main body is equal to the diameter of the spring-loaded sleeve.

4. The combined spring-loaded pin structure as described in claim 1, characterized in that: The thickness of the spring-loaded fixing plate is adjustable.

5. The combined spring-loaded pin structure as described in claim 1, characterized in that: The spring-loaded base and the spring-loaded middle sleeve are provided with through holes along the circumference that are adapted to the connector.

6. The combined spring-loaded pin structure as described in claim 5, characterized in that: The connector is a screw, and the through hole is a threaded hole.

7. The combined spring-loaded pin structure as described in claim 5, characterized in that: The diameter of the through hole is greater than or equal to 10 mm.

8. A stamping die, characterized in that, It includes an upper mold base, a stripper plate, and a combined spring-loaded pin structure as described in any one of claims 1-7, which is installed between the upper mold base and the stripper plate.

9. The stamping die as described in claim 8, characterized in that, Also includes: A limiting strip is fixed to the unloading plate and located between the unloading plate and the upper mold base; the combined spring-loaded pin is installed with the limiting strip.

10. The stamping die as described in claim 9, characterized in that: The upper mold base has an installation hole, and the combined spring-loaded pin is inserted into the installation hole.

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