Quick change mechanism for ejector pin

Abstract

The utility model relates to the technical field of thimbles, and discloses a quick-change mechanism for thimbles, which comprises a fixed block and a connecting seat, the bottom of the fixed block is fixedly connected with a joining block, the two sides of the outside of the joining block are fixedly connected with joining cylinders, the inner walls of the joining cylinders are slidably connected with a moving plate, and the moving plate is fixedly connected with the connecting seat. A spring is fixedly connected to one end of the moving plate, a clamping column is fixedly connected to the other end of the moving plate, two clamping holes are formed in the outer side of the connecting base, an auxiliary assembly is arranged at the top of the connecting base and used for assisting in mounting of the fixing block, and the auxiliary assembly comprises four limiting rods and four limiting grooves. The bottoms of the four limiting rods are fixedly connected to the top of a connecting base. According to the utility model, after the clamping column is separated from the clamping hole, the fixing block is lifted upwards, so that the fixing block is completely taken down from the connecting seat, the fixing block can be quickly taken down from the connecting seat, the difficulty of replacing and installing the ejector pin is reduced, and the efficiency of the ejector pin is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ejector pins, in particular to a quick-change mechanism for ejector pins. Background Art

[0002] As an important tool widely used in mold manufacturing, machining, and electronic equipment assembly, the performance and usability of ejector pins directly affect the efficiency and quality of the production process. Ejector pins can play key roles such as positioning, supporting, and ejecting during production, and have irreplaceable value for ensuring the accuracy and integrity of products.

[0003] Existing ejector pin devices have various connection methods in design and manufacturing. Threaded connection is a relatively common one, and the tight combination of the ejector pin and the mounting seat is achieved by rotating the thread. After long-term use, the thread may wear, deform, or even seize, resulting in difficult disassembly. In addition, some use fixing methods such as welding or gluing, but once the ejector pin needs to be replaced, destructive removal is required, causing waste of resources and increased costs.

[0004] The existing ejector pin connection structure is often cumbersome and time-consuming to replace the ejector pin, which not only increases the difficulty of replacing the ejector pin, reduces work efficiency, but also may affect the production schedule and product quality. For this reason, a quick-change mechanism for ejector pins is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a quick-change mechanism for ejector pins, aiming to improve the problem that the existing ejector pin connection structure is often cumbersome and time-consuming when replacing the ejector pin.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A quick-change mechanism for ejector pins, including a fixed block and a connection seat. The bottom of the fixed block is fixedly connected with an adapter block. Both outer sides of the adapter block are fixedly connected with adapter cylinders. A moving plate is slidably connected to the inner wall of the adapter cylinder. One end of the moving plate is fixedly connected with a spring, and the other end of the moving plate is fixedly connected with a clamping post. Two clamping holes are opened on the outer side of the connection seat, and an auxiliary component is arranged on the top of the connection seat for assisting in the installation of the fixed block.

[0007] As a further description of the above technical solution:

[0008] The auxiliary component includes four limiting rods and four limiting grooves. The bottoms of the four limiting rods are fixedly connected to the top of the connection seat, and the four limiting grooves are all opened on the bottom of the fixed block.

[0009] As a further description of the above technical solution:

[0010] The limiting rods are matched with the limiting grooves in shape, and the four limiting rods are respectively inserted and matched with the corresponding limiting grooves.

[0011] As a further description of the above technical solution:

[0012] The outer sides of the four limiting rods are respectively attached to the inner walls of the corresponding limiting grooves.

[0013] As a further description of the above technical solution:

[0014] The clamping posts are matched with the clamping holes in shape, and the two clamping posts are respectively inserted and matched with the corresponding clamping holes.

[0015] As a further description of the above technical solution:

[0016] One ends of the two springs are respectively fixedly connected to the inner walls of the corresponding connecting cylinders.

[0017] As a further description of the above technical solution:

[0018] The two clamping posts are respectively slidably connected to the through holes of the corresponding connecting cylinders.

[0019] As a further description of the above technical solution:

[0020] A connecting block is fixedly connected to the top of the fixed block, and a plurality of thimble bodies are fixedly connected to the top of the connecting block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by pressing the two clamping posts, the two clamping posts move relatively. Under the action of external force, the clamping posts slide out of the clamping holes and enter the inside of the connecting seat, and at the same time, the springs are compressed. After the clamping posts are separated from the clamping holes, the fixed block is lifted upward to completely remove it from the connecting seat, so that the fixed block can be quickly removed from the connecting seat, reducing the difficulty of replacing and installing the thimble and improving the efficiency.

[0023] 2. In the utility model, by slowly lowering the bottom of the fixed block to align with the top of the connecting seat, the limiting rods are gradually inserted into the corresponding limiting grooves. As the fixed block continues to descend, the limiting rods slide in the limiting grooves, providing precise guidance and centering for the fixed block. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of a quick-change mechanism for a thimble proposed by the utility model;

[0025] Figure 2 is a schematic diagram of the clamping hole structure of a quick-change mechanism for a thimble proposed by the utility model;

[0026] Figure 3 Schematic diagram of the connection block structure of a quick-change mechanism for a thimble proposed by the present utility model;

[0027] Figure 4 Schematic diagram of the limit rod structure of a quick-change mechanism for a thimble proposed by the present utility model;

[0028] Figure 5 is Figure 3 the enlarged view of A in

[0029] Legend description:

[0030] 1. Thimble body; 2. Connection block; 3. Fixed block; 4. Connection seat; 5. Connection block; 6. Connection cylinder; 7. Moving plate; 8. Spring; 9. Card column; 10. Card hole; 11. Limit rod; 12. Limit groove. Specific implementation manner

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present utility model: A quick-change mechanism for a thimble includes a fixed block 3 and a connection seat 4. The bottom of the fixed block 3 is fixedly connected with a connection block 5. Both outer sides of the connection block 5 are fixedly connected with connection cylinders 6. The inner wall of the connection cylinder 6 is slidably connected with a moving plate 7. One end of the moving plate 7 is fixedly connected with a spring 8. One ends of the two springs 8 are respectively fixedly connected to the inner walls of the corresponding connection cylinders 6. The other end of the moving plate 7 is fixedly connected with a card column 9. The two card columns 9 are respectively slidably connected at the through holes of the corresponding connection cylinders 6. The card column 9 is matched with the shape of the card hole 10. The two card columns 9 are respectively inserted and matched with the corresponding card holes 10. Two card holes 10 are opened on the outer side of the connection seat 4. The top of the fixed block 3 is fixedly connected with a connection block 2. The top of the connection block 2 is fixedly connected with a plurality of thimble bodies 1.

[0033] Specifically, by aligning the bottom of the fixed block 3 with the top of the connecting seat 4 and slowly lowering it, the limiting rod 11 gradually inserts into the corresponding limiting groove 12. As the fixed block 3 continues to descend, the limiting rod 11 slides within the limiting groove 12, providing precise guidance and centering for the fixed block 3. When the fixed block 3 approaches the connecting seat 4 by a certain distance, apply a downward force to make the clamping post 9 overcome the elastic force of the spring 8 and slide outward. During the outward sliding process of the clamping post 9, it gradually aligns with the clamping hole 10 on the connecting seat 4 and, under the elastic force of the spring 8, the clamping post 9 inserts into the clamping hole 10, realizing the installation of the fixed block 3 and the connecting seat 4. This enables the thimble body 1 fixed on the connecting block 2 to work together with the connecting seat 4. By holding the two clamping posts 9 and making them move relative to each other, under the action of an external force, the clamping posts 9 will slide out of the clamping holes 10 and enter the interior of the connecting seat 4, while squeezing the spring 8. After the clamping posts 9 disengage from the clamping holes 10, lift the fixed block 3 upward to completely remove it from the connecting seat 4, which can quickly remove the fixed block 3 from the connecting seat 4, reducing the difficulty of replacing and installing the thimble and improving the efficiency.

[0034] Refer to Figure 1 , Figure 2 and Figure 3 , an auxiliary component is provided on the top of the connecting seat 4. The auxiliary component is used to assist in the installation of the fixed block 3. The auxiliary component includes four limiting rods 11 and four limiting grooves 12. The bottoms of the four limiting rods 11 are fixedly connected to the top of the connecting seat 4. The four limiting grooves 12 are all opened at the bottom of the fixed block 3. The shapes of the limiting rods 11 and the limiting grooves 12 match. The four limiting rods 11 are respectively inserted and matched with the corresponding limiting grooves 12, and the outer sides of the four limiting rods 11 are respectively in contact with the inner walls of the corresponding limiting grooves 12.

[0035] Specifically, first, preliminarily align the bottom of the fixed block 3 with the top of the connecting seat 4, which is the key to ensuring the smooth progress of the subsequent installation process. After alignment, the operator slowly lowers the fixed block 3 towards the connecting seat 4, causing the limiting rod 11 to gradually insert into the corresponding limiting groove 12. As the fixed block 3 continues to descend, the limiting rod 11 slides within the limiting groove 12, providing precise guidance for the fixed block 3, ensuring its centering in the horizontal direction, and preventing misalignment or inclination during the installation process.

[0036] Working principle: By holding down the two clamping posts 9, the two clamping posts 9 move relative to each other. Under the action of an external force, the clamping posts 9 will slide out of the clamping holes 10 and enter the interior of the connecting seat 4, while squeezing the spring 8. After the clamping posts 9 are disengaged from the clamping holes 10, the fixing block 3 is lifted upward to completely remove it from the connecting seat 4. The fixing block 3 can be quickly removed from the connecting seat 4, reducing the difficulty of replacing and installing the ejector pin and improving the efficiency. By slowly lowering the bottom of the fixing block 3 to align with the top of the connecting seat 4, the limiting rod 11 gradually inserts into the corresponding limiting groove 12. As the fixing block 3 continues to descend, the limiting rod 11 slides within the limiting groove 12, providing precise guidance and centering for the fixing block 3.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A quick-change mechanism for an ejector pin, comprising a fixing block (3) and a connecting seat (4), characterized in that: The bottom of the fixed block (3) is fixedly connected to a connecting block (5), both sides of the outside of the connecting block (5) are fixedly connected to connecting tubes (6), the inner wall of the connecting tube (6) is slidably connected to a moving plate (7), one end of the moving plate (7) is fixedly connected to a spring (8), and the other end of the moving plate (7) is fixedly connected to a clamping column (9), the outer side of the connecting seat (4) is provided with two clamping holes (10), and the top of the connecting seat (4) is provided with an auxiliary component, which is used to assist in the installation of the fixed block (3).

2. The quick-change mechanism for an ejector according to claim 1, characterized in that: The auxiliary component comprises four limiting rods (11) and four limiting grooves (12), the bottoms of the four limiting rods (11) are fixedly connected to the top of the connecting seat (4), and the four limiting grooves (12) are opened at the bottom of the fixing block (3).

3. A quick-change mechanism for an ejector according to claim 2, characterized in that: The shapes of the limiting rods (11) and the limiting grooves (12) match each other, and the four limiting rods (11) are respectively plugged into and matched with the corresponding limiting grooves (12).

4. The quick-change mechanism for an ejector according to claim 2, characterized in that: The outer sides of the four limiting rods (11) are respectively fitted with the inner walls of the corresponding limiting grooves (12).

5. The quick-change mechanism for ejector pin according to claim 1, characterized in that: The shapes of the clamping column (9) and the clamping hole (10) match each other, and the two clamping columns (9) are respectively plugged into and matched with the corresponding clamping holes (10).

6. The quick-change mechanism for ejector pin according to claim 1, characterized in that: One end of the two springs (8) is respectively fixedly connected to the inner wall of the corresponding connecting tube (6).

7. The quick-change mechanism for an ejector according to claim 1, characterized in that: The two clamping columns (9) are respectively slidably connected to the through holes of the corresponding connecting cylinders (6).

8. The quick-change mechanism for ejector pin according to claim 1, characterized in that: The top of the fixing block (3) is fixedly connected to a connecting block (2), and the top of the connecting block (2) is fixedly connected to a plurality of ejector pin bodies (1).

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