Die positioning pin fixing structure

Abstract

The utility model discloses a mould positioning pin fixing structure, which relates to the technical field of moulds and comprises a positioning pin cover, a positioning pin component is mounted at one end of the positioning pin cover and comprises a positioning pin body, one end of the positioning pin body is fixedly connected with one end of the positioning pin cover, and the other end of the positioning pin cover is fixedly connected with the positioning pin component. According to the positioning pin, the positioning pin body is pressed towards the interior of the mounting groove, one side of the fixing sleeve block makes contact with the inclined positions of the anti-loosening blocks, the two anti-loosening blocks are pushed towards the two sides, the first spring extends, and after the fixing sleeve block moves to make contact with a fixing frame, the positioning pin body is pressed towards the interior of the mounting groove. And the first spring pushes the anti-loosening block to move into the first open groove to fix the position of the fixed sleeve block, so that the positioning pin body is prevented from loosening or shifting in the use process of the mold, and the stability of the positioning pin body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a fixing structure for a mold positioning pin. Background Technique

[0002] The mold positioning pin is usually made of high-strength metal material, has precise dimensions and a specific shape. Its main function is to ensure that each component of the mold can be accurately positioned and fixed during the assembly and use of the mold. The mold positioning pin is installed on the mold through a fixing structure.

[0003] For example, the publication number CN206122533U discloses a fixing structure for a positioning and guiding pin for a mold and a stamping mold. The fixing structure for the positioning and guiding pin for a mold includes: a mold body; a positioning and guiding pin; and a fixing seat, which is fixedly installed on the mold body and axially limits the positioning and guiding pin to hold the positioning and guiding pin on the mold body.

[0004] In the prior art, since the positioning pin needs to provide an accurate positioning function, when bolts and nuts are used to fix the positioning pin, it cannot withstand various forces and vibrations generated during the processing of the mold. After long-term work, the positioning pin will loosen or move, and the stability of the positioning pin is reduced, resulting in the processing accuracy and production quality of the mold being affected. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem that the positioning pin will loosen or move after long-term work in the prior art, and to propose a fixing structure for a mold positioning pin.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a fixing structure for a mold positioning pin, including a positioning pin cover. One end of the positioning pin cover is provided with a positioning pin assembly. The positioning pin assembly includes a positioning pin body. One end of the positioning pin body is fixedly connected to one end of the positioning pin cover. A fixing sleeve block is fixedly connected to the outside of the positioning pin body. A first slot is opened on one side of the fixing sleeve block. A loosening prevention mechanism is arranged on the outside of the positioning pin body. A fixing mechanism is arranged on one side of the loosening prevention mechanism. The loosening prevention mechanism includes a fixing frame. The inner ring surface of the fixing frame is fixedly connected to the outside of the positioning pin body. Guide rods are slidably connected to both sides of the fixing frame. One end of the guide rod is fixedly connected to a loosening prevention block. The outside of the loosening prevention block is clamped inside the first slot. The other end of the guide rod is fixedly connected to a fixing block. A first spring is arranged between the fixing block and the fixing frame. The first spring is sleeved on the outside of the guide rod.

[0007] Preferably, a second slot is opened on the inner ring surface of the fixing frame.

[0008] Preferably, the fixing mechanism includes a mold mounting table, one side of the mold mounting table is fixedly connected to one side of the fixing frame, and an installation groove is formed on one side of the mold mounting table.

[0009] Preferably, a guiding strip is fixedly connected to the inner side of the installation groove, a guiding groove is formed on the outer surface of one end of the positioning pin body, and the guiding strip slides inside the guiding groove.

[0010] Preferably, a bevel platform is fixedly connected to the outer surface of the positioning pin body, there are a plurality of bevel platforms, a clamping sleeve is clamped on one side of the plurality of bevel platforms, and a fixing ring is fixedly connected between every two clamping sleeves.

[0011] Preferably, a telescopic rod is fixedly connected to one side of the clamping sleeve, and one end of the telescopic rod is fixedly connected to the inner side of the installation groove.

[0012] Preferably, a second spring is sleeved outside the telescopic rod, and the second spring is arranged between the installation groove and the clamping sleeve.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. In the present utility model, the positioning pin body is pressed into the installation groove, one side of the fixed sleeve block contacts the inclined part of the anti-loosening block, the two anti-loosening blocks are pushed to both sides, the first spring extends, and after the fixed sleeve block moves to contact the fixed frame, the first spring pushes the anti-loosening block to move into the first opening groove to fix the position of the fixed sleeve block, preventing the positioning pin body from loosening or shifting during the use of the mold, and improving the stability of the positioning pin body.

[0015] 2. In the present utility model, the outer side of the bevel platform contacts the inner side of the clamping sleeve, pushing the clamping sleeve, the telescopic rod contracts, and the second spring is compressed, so that one end of the positioning pin body contacts the inner side of the installation groove, and the second spring pushes the clamping sleeve to move to be clamped on one side of the bevel platform, and the guiding strip slides inside the guiding groove, thereby fixing the positioning pin body on the mold mounting table and improving the stability of the positioning pin body after fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a fixing structure of a mold positioning pin proposed by the present utility model;

[0017] Figure 2 is a disassembled structural schematic diagram of a fixing structure of a mold positioning pin proposed by the present utility model;

[0018] Figure 3 is a partial enlarged structural schematic diagram of A of a fixing structure of a mold positioning pin proposed by the present utility model; Figure 2 of the present utility model;

[0019] Figure 4 The sectional structure schematic diagram of the fixing mechanism of a fixing structure for a die positioning pin is proposed for the present utility model.

[0020] Legend: 1. Positioning pin assembly; 11. Positioning pin body; 12. Inclined table; 13. First slotted groove; 14. Fixed sleeve block; 15. Guide groove; 2. Anti-loosening mechanism; 21. Fixed frame; 22. Anti-loosening block; 23. Guide rod; 24. First spring; 25. Fixed block; 26. Second slotted groove; 3. Fixing mechanism; 31. Die installation table; 32. Installation groove; 33. Guide strip; 34. Telescopic rod; 35. Clamping sleeve; 36. Fixed ring; 37. Second spring; 4. Positioning pin cover. Specific implementation manners

[0021] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0023] Embodiment 1: As Figure 1 - Figure 4 shown, the present utility model provides a fixing structure for a die positioning pin, including a positioning pin cover 4. One end of the positioning pin cover 4 is installed with a positioning pin assembly 1. The positioning pin assembly 1 includes a positioning pin body 11. One end of the positioning pin body 11 is fixedly connected to one end of the positioning pin cover 4. A fixed sleeve block 14 is fixedly connected to the outside of the positioning pin body 11. A first slotted groove 13 is opened on one side of the fixed sleeve block 14. An anti-loosening mechanism 2 is arranged on the outside of the positioning pin body 11. A fixing mechanism 3 is arranged on one side of the anti-loosening mechanism 2. The anti-loosening mechanism 2 includes a fixed frame 21. The inner ring surface of the fixed frame 21 is fixedly connected to the outside of the positioning pin body 11. Guide rods 23 are slidably connected to both sides of the fixed frame 21. One end of the guide rod 23 is fixedly connected to an anti-loosening block 22. The outside of the anti-loosening block 22 is clamped inside the first slotted groove 13. The other end of the guide rod 23 is fixedly connected to a fixed block 25. A first spring 24 is arranged between the fixed block 25 and the fixed frame 21. The first spring 24 is sleeved on the outside of the guide rod 23. A second slotted groove 26 is opened on the inner ring surface of the fixed frame 21.

[0024] When the positioning pin body 11 is pressed into the interior of the installation groove 32, one side of the fixed sleeve block 14 contacts the inclined part of the anti-loosening block 22, pushing the two anti-loosening blocks 22 to both sides. The guide rod 23 slides on the side of the fixed frame 21, the first spring 24 elongates, and the anti-loosening block 22 moves into the interior of the second slot 26. At this time, one side of the fixed sleeve block 14 moves to contact one side of the fixed frame 21. Under the elastic force of the first spring 24 in the elongated state, the anti-loosening block 22 is pushed to move into the interior of the first slot 13 to fix the position of the fixed sleeve block 14. The outer diameter of the fixed sleeve block 14 is the same as the inner diameter of the fixed frame 21, and the fixed sleeve block 14 is stuck inside the fixed frame 21, preventing the positioning pin body 11 from loosening or shifting during the use of the mold and improving the stability of the positioning pin body 11.

[0025] Embodiment 2: As Figure 1 , Figure 2 and Figure 4 shown, the fixing mechanism 3 includes a mold installation table 31. One side of the mold installation table 31 is fixedly connected to one side of the fixed frame 21, and an installation groove 32 is opened on one side of the mold installation table 31; a guide strip 33 is fixedly connected to the inner side of the installation groove 32, and a guide groove 15 is opened on the outer surface of one end of the positioning pin body 11, and the guide strip 33 slides inside the guide groove 15; an inclined platform 12 is fixedly connected to the outer surface of the positioning pin body 11, there are multiple inclined platforms 12, and a clamping sleeve 35 is clamped on one side of the multiple inclined platforms 12, and a fixing ring 36 is fixedly connected between two clamping sleeves 35; one side of the clamping sleeve 35 is fixedly connected to a telescopic rod 34, and one end of the telescopic rod 34 is fixedly connected to the inner side of the installation groove 32; a second spring 37 is sleeved outside the telescopic rod 34, and the second spring 37 is arranged between the installation groove 32 and the clamping sleeve 35.

[0026] Press the positioning pin body 11 into the interior of the installation groove 32. There are multiple inclined platforms 12 on the outside of the positioning pin body 11, the outer sides of the inclined platforms 12 are inclined, and there are corresponding numbers of clamping sleeves 35 inside the installation groove 32. The inner sides of the clamping sleeves 35 are inclined, and the clamping sleeves 35 are fixed by the fixing ring 36. Push the multiple clamping sleeves 35 to both sides, the outer side of the inclined platform 12 contacts the inner side of the clamping sleeve 35, the clamping sleeves 35 on the same side move simultaneously, the telescopic rod 34 contracts, and the second spring 37 is compressed, so that one end of the positioning pin body 11 contacts the inner side of the installation groove 32. The second spring 37 in the compressed state works to push the clamping sleeve 35 to move to be clamped on one side of the inclined platform 12 to fix the positioning pin body 11 in the vertical direction. Through the arrangement of the guide groove 15 and the guide strip 33, the guide strip 33 slides inside the guide groove 15 to fix the positioning pin body 11 in the horizontal direction, fixing the positioning pin body 11 on the mold installation table 31 and improving the stability of the positioning pin body 11.

[0027] Usage method and working principle of this device: Press the positioning pin body 11 into the interior of the installation groove 32. The outer side of the inclined platform 12 contacts the inner side of the clamping sleeve 35, pushing the clamping sleeve 35 to both sides. The telescopic rod 34 contracts, and the second spring 37 is compressed, so that one end of the positioning pin body 11 contacts the inner side of the installation groove 32. The second spring 37 pushes the clamping sleeve 35 to move and be clamped on one side of the inclined platform 12. The guiding strip 33 slides inside the guiding groove 15, fixing the positioning pin body 11 on the mold installation table 31. When the positioning pin body 11 is pressed into the interior of the installation groove 32, one side of the fixing sleeve block 14 contacts the inclined part of the anti-loosening block 22, pushing the two anti-loosening blocks 22 to both sides. The first spring 24 extends, and the anti-loosening block 22 moves into the interior of the second slot 26. Under the elastic action of the first spring 24, the anti-loosening block 22 moves into the interior of the first slot 13 to fix the position of the fixing sleeve block 14.

[0028] The above are only the preferred embodiments of the present invention, and are not limitations to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A fixing structure for a die positioning pin, including a positioning pin cover (4), characterized in that: One end of the positioning pin cover (4) is provided with a positioning pin assembly (1). The positioning pin assembly (1) includes a positioning pin body (11). One end of the positioning pin body (11) is fixedly connected to one end of the positioning pin cover (4). An outer part of the positioning pin body (11) is fixedly connected with a fixed sleeve block (14). A first slot (13) is formed on one side of the fixed sleeve block (14). An anti-loosening mechanism (2) is arranged on an outer part of the positioning pin body (11). A fixing mechanism (3) is arranged on one side of the anti-loosening mechanism (2). The anti-loosening mechanism (2) includes a fixed frame (21). An inner ring surface of the fixed frame (21) is fixedly connected to an outer part of the positioning pin body (11). Guide rods (23) are slidably connected to both sides of the fixed frame (21). One end of each guide rod (23) is fixedly connected with an anti-loosening block (22). An outer part of the anti-loosening block (22) is clamped inside the first slot (13). The other end of the guide rod (23) is fixedly connected with a fixed block (25). A first spring (24) is arranged between the fixed block (25) and the fixed frame (21). The first spring (24) is sleeved on the guide rod (23).

2. The fixed structure of a mold locating pin according to claim 1, characterized in that: A second slot (26) is formed on an inner ring surface of the fixed frame (21).

3. A fixing structure of a die locating pin according to claim 1, characterized in that: The fixing mechanism (3) includes a mold mounting table (31). One side of the mold mounting table (31) is fixedly connected to one side of the fixed frame (21). An installation slot (32) is formed on one side of the mold mounting table (31).

4. A fixing structure for a mold positioning pin according to claim 3, characterized in that: Guide strips (33) are fixedly connected to an inner side of the installation slot (32). A guide groove (15) is formed on an outer surface of one end of the positioning pin body (11). The guide strips (33) slide inside the guide groove (15).

5. A fixing structure of a die positioning pin according to claim 1, characterized in that: An inclined platform (12) is fixedly connected to an outer surface of the positioning pin body (11). There are multiple inclined platforms (12). A clamping sleeve (35) is clamped on one side of the multiple inclined platforms (12). A fixing ring (36) is fixedly connected between every two clamping sleeves (35).

6. The fixing structure of a mold locating pin according to claim 5, wherein: One side of the clamping sleeve (35) is fixedly connected with a telescopic rod (34). One end of the telescopic rod (34) is fixedly connected to an inner side of the installation slot (32).

7. The fixing structure of a mold positioning pin according to claim 6, wherein: A second spring (37) is sleeved on an outer part of the telescopic rod (34). The second spring (37) is arranged between the installation slot (32) and the clamping sleeve (35).

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