Quick replacement positioning pin for oil press mold

Abstract

The utility model relates to positioning pin technical field discloses a kind of quick replacement positioning pin of oil press mould, including pin body, the bottom of pin body is equipped with pre-install seat, the both sides of pre-install seat inner wall are all set with connecting groove, the inner wall of two connecting grooves is all installed with limiting component, the both sides of pin body bottom are all set with limiting slot, the top of pin body is set with lubricating groove, and the limiting component includes spring piece, limiting piece and unlocking assembly, the spring piece is fixedly connected to the side of limiting slot inner wall. In the utility model, when oil press replaces different mould, the pin body of the positioning pin can be quickly disassembled, the working efficiency is improved, the lubricating groove of spiral shape is set on the positioning pin, the retention of lubricating grease is facilitated, the replenishment frequency can be reduced, and when being inserted with the positioning hole on the mould, the lubricating grease can be uniformly flowed to the surface of pin body after being extruded, and the lubrication effect is better.

Description

Technical Field

[0001] This utility model relates to the field of positioning pin technology, and in particular to a quick-change positioning pin for hydraulic press molds. Background Technology

[0002] Hydraulic press molds are tools used on hydraulic press equipment to shape, separate, or deform materials through pressure processing. Positioning pins on the hydraulic press play a crucial role in precisely positioning mold components, preventing misalignment, and ensuring mold closing accuracy and workpiece processing quality.

[0003] However, existing locating pins have shortcomings in use. First, existing locating pins are usually fixed to the platform of the hydraulic press by the cooperation of external threads and nuts, which requires tools for disassembly and is relatively troublesome, making it inefficient when changing different molds. Second, in order to ensure smooth insertion of the locating pin into the locating hole on the mold, it is often necessary to lubricate the surface of the locating pin. However, existing locating pins are cylindrical, and the surface lubrication is prone to unevenness and difficulty in lubricant retention. Therefore, a quick-change locating pin for hydraulic press molds is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick-change locating pin for hydraulic press molds, aiming to improve the problems of existing locating pins which often require tools for disassembly, and the uneven lubrication and difficulty in lubricant retention on the surface of existing locating pins.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-change positioning pin for a hydraulic press mold, comprising a pin body, a pre-installed seat fitted at the bottom of the pin body, connecting grooves on both sides of the inner wall of the pre-installed seat, a limit component installed on the inner wall of both connecting grooves, a limit groove on both sides of the bottom of the pin body, and a lubrication groove on the top of the pin body.

[0006] The limiting component includes a spring, a limiting member, and an unlocking component. The spring is fixedly connected to one side of the inner wall of the limiting groove. One end of the spring is fixedly connected to the limiting member, and one end of the limiting member engages with the inner wall of the limiting groove. The unlocking component is installed at the bottom of the inner wall of the connecting groove.

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

[0008] The unlocking component includes a through-hole and an unlocking post. The through-hole is located on one side of the bottom end of the inner wall of the connecting groove, and the unlocking post is inserted into the inner wall of the through-hole.

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

[0010] The bottom end of the limiting component is provided with an oblique groove.

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

[0012] The lubrication groove is spiral-shaped.

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

[0014] The inner wall of the lubrication groove is filled with grease.

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

[0016] The pin has a pointed tip at its top.

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

[0018] The bottom end of the pin is provided with a limiting part.

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

[0020] Lugs are fixedly connected to the top of both sides of the pre-installed base.

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

[0022] 1. In this utility model, the pre-installed seat of the positioning pin is pre-embedded on the platform of the hydraulic press. By pressing the two unlocking pins below at the same time, the pin can be installed and disassembled. This allows the hydraulic press to quickly install and disassemble the pin when changing different molds, thereby improving work efficiency.

[0023] 2. In this utility model, by providing a lubrication groove on the positioning pin, it is beneficial to retain the grease, which can reduce the frequency of replenishment. Moreover, the lubrication groove is spiral-shaped, so when it is inserted into the positioning hole on the mold, the grease can flow evenly to the surface of the pin after being squeezed, resulting in better lubrication effect. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a quick-change positioning pin for a hydraulic press mold proposed in this utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of a quick-change positioning pin for a hydraulic press mold proposed in this utility model;

[0026] Figure 3 This is a three-dimensional schematic diagram of a positioning pin for quick replacement of a hydraulic press mold, as proposed in this utility model.

[0027] Legend:

[0028] 1. Pin; 2. Limiting groove; 3. Pre-installation seat; 4. Connecting groove; 5. Spring; 6. Limiting component; 7. Angled groove; 8. Through hole; 9. Unlocking post; 10. Lug; 11. Limiting part; 12. Tip; 13. Lubrication groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a quick-change positioning pin for a hydraulic press mold, including a pin body 1. The pin body 1 can be connected to the positioning hole on the mold to ensure the installation accuracy of the mold. A pre-installation seat 3 is sleeved on the bottom of the pin body 1. The pre-installation seat 3 is pre-installed on the platform of the hydraulic press. When installing the mold, the pin body 1 can be quickly installed on the corresponding pre-installation seat 3. Connecting grooves 4 are opened on both sides of the inner wall of the pre-installation seat 3. Limiting components are installed on the inner walls of the two connecting grooves 4. Limiting grooves 2 are opened on both sides of the bottom of the pin body 1, which cooperate with the limiting components to fix the position of the pin body 1. A lubrication groove 13 is opened on the top of the pin body 1. The lubrication groove 13 facilitates the retention of lubricating substances and reduces the replenishment frequency.

[0031] Reference Figure 2 The limiting component includes a spring piece 5, a limiting member 6, and an unlocking component. The spring piece 5 is fixedly connected to one side of the inner wall of the limiting groove 2. One end of the spring piece 5 is fixedly connected to the limiting member 6. Under the action of elastic force, the spring piece 5 can push the end of the limiting member 6 out of the connecting groove 4, which can be used to reset the limiting member 6 after it is squeezed. One end of the limiting member 6 is engaged with the inner wall of the limiting groove 2, which plays a locking role, so that the pin 1 inserted into the pre-installed seat 3 can no longer move. The bottom end of the inner wall of the connecting groove 4 is equipped with an unlocking component to release the locking of the pin 1 position.

[0032] Reference Figure 2 The unlocking component includes a through-hole 8 and an unlocking post 9. The through-hole 8 is located on one side of the bottom of the inner wall of the connecting groove 4. The unlocking post 9 is inserted into the inner wall of the through-hole 8. By pressing the two unlocking posts 9 below the pre-installed seat 3 at the same time, the two side limiting members 6 can be squeezed so that their ends retract into the connecting groove 4. At this time, the pin 1 can be inserted and removed.

[0033] Reference Figure 2 The bottom end of the limiting member 6 is provided with an inclined groove 7. The inclined groove 7 allows the unlocking post 9 to be pressed and squeezed to move the limiting member 6.

[0034] Reference Figure 3 The lubrication groove 13 is spiral-shaped, which allows the lubricating material to flow evenly to the surface of the pin body 1 after being squeezed when the positioning pin is inserted into the positioning hole on the mold, resulting in better lubrication.

[0035] Reference Figure 1 The inner wall of the lubrication groove 13 is filled with grease, which has good adhesion and is easy to retain.

[0036] Reference Figure 3 The top of the pin 1 is provided with a pointed part 12, which facilitates the smooth insertion of the positioning pin into the positioning hole of the mold.

[0037] Reference Figure 3 The bottom end of the pin 1 is provided with a limiting part 11, which can limit the insertion of the pin 1 on the pre-installation seat 3 and keep the length of the exposed part of the pin 1 stable.

[0038] Reference Figure 1 The top of both sides of the pre-mounted seat 3 is fixedly connected with lugs 10. Fasteners are used on the lugs 10 to pre-install the pre-mounted seat 3 on the platform of the hydraulic press.

[0039] Working principle: The pre-installed seat 3 of the positioning pin is pre-embedded on the platform of the hydraulic press. When installing the pin 1, press the two unlocking pins 9 below at the same time. With the cooperation of the inclined groove 7, the limiting parts 6 on both sides can be squeezed so that their ends retract into the connecting groove 4. At this time, the pin 1 can be inserted into the connection groove 4. After releasing the unlocking pin 9, the limiting part 6 will be reset under the action of the spring piece 5 and its end will be stuck into the limiting groove 2, which plays a locking role and completes the installation. Press the two unlocking pins 9 at the same time again to disassemble. This allows the hydraulic press to quickly disassemble and assemble the pin 1 when changing different molds, which improves work efficiency. The positioning pin is provided with a lubrication groove 13, which is conducive to the retention of grease and can reduce the frequency of replenishment. The lubrication groove 13 is spiral in shape. When it is inserted into the positioning hole on the mold, the grease can flow evenly to the surface of the pin 1 after being squeezed, which improves the lubrication effect.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-change positioning pin for a hydraulic press mold, comprising a pin body (1), characterized in that: The bottom of the pin (1) is fitted with a pre-installed seat (3), and the inner walls of the pre-installed seat (3) are provided with connecting grooves (4) on both sides. The inner walls of the two connecting grooves (4) are equipped with limit components. The bottom of the pin (1) is provided with limit grooves (2) on both sides. The top of the pin (1) is provided with a lubrication groove (13). The limiting component includes a spring (5), a limiting member (6), and an unlocking component. The spring (5) is fixedly connected to one side of the inner wall of the limiting groove (2). One end of the spring (5) is fixedly connected to the limiting member (6), and one end of the limiting member (6) is engaged with the inner wall of the limiting groove (2). The unlocking component is installed at the bottom of the inner wall of the connecting groove (4).

2. The quick-change positioning pin for a hydraulic press mold according to claim 1, characterized in that: The unlocking component includes a through-hole (8) and an unlocking post (9). The through-hole (8) is opened on one side of the bottom end of the inner wall of the connecting groove (4), and the unlocking post (9) is inserted into the inner wall of the through-hole (8).

3. The quick-change positioning pin for a hydraulic press mold according to claim 1, characterized in that: The bottom end of the limiting member (6) is provided with an inclined groove (7).

4. The quick-change positioning pin for a hydraulic press mold according to claim 1, characterized in that: The lubrication groove (13) is spiral-shaped.

5. A quick-change positioning pin for a hydraulic press mold according to claim 4, characterized in that: The inner wall of the lubrication groove (13) is filled with grease.

6. The quick-change positioning pin for a hydraulic press mold according to claim 1, characterized in that: The pin (1) has a pointed part (12) at its top end.

7. The quick-change positioning pin for a hydraulic press mold according to claim 1, characterized in that: The bottom end of the pin (1) is provided with a limiting part (11).

8. The quick-change positioning pin for a hydraulic press mold according to claim 1, characterized in that: Lugs (10) are fixedly connected to the top of both sides of the pre-mounted base (3).

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