A type of activity positioning sales mechanism

Abstract

This utility model discloses a movable positioning pin mechanism in the field of positioning pin technology, including a cylindrical pin and a base. The lower end of the cylindrical pin is vertically and movably installed in the base. A push rod is laterally movably arranged inside the base. A hydraulic cylinder is arranged on one side of the base, and the piston rod of the hydraulic cylinder is connected to the push rod through a joint. A slanted groove is formed on the front side of the outer wall of the push rod, and a groove is formed on the rear side of the outer wall of the cylindrical pin. A slanted slider is arranged in the groove, which slides in cooperation with the slanted groove. This application, based on the base, uses the extension and retraction of the hydraulic cylinder to drive the push rod to move. The slanted slider slides in the slanted groove, converting the movement of the push rod into the movable extension and retraction of the cylindrical pin. This facilitates the movement of the positioning pin itself, allowing it to adjust itself to meet the positioning requirements of different workpieces.

Description

Technical Field

[0001] This utility model relates to the field of positioning pin technology, specifically to a movable positioning pin mechanism. Background Technology

[0002] A locating pin is a component that uses a workpiece hole as a positioning reference to restrict the degrees of freedom of an object. It controls the linear motion of the object in the X, Y, and Z axes, and its rotational motion around the X, Y, and Z axes, totaling six degrees of freedom. In molds consisting of two or more parts, it is a pin designed to accurately position adjacent parts of the mold.

[0003] Because the locating pin uses the workpiece hole as the positioning reference, that is, the locating pin is inserted into the workpiece hole for positioning and then removed when positioning is no longer needed, the locating pin itself cannot move and cannot adjust itself to meet the positioning requirements of different workpieces. Based on this, we propose a movable locating pin mechanism. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems in the prior art and provide a movable positioning pin mechanism that facilitates the movement of the positioning pin itself, thereby enabling it to adjust its movement to meet the positioning requirements of different workpieces.

[0005] To solve the above technical problems, this utility model provides a movable positioning pin mechanism, including a cylindrical pin and a base. The lower end of the cylindrical pin is vertically and movably installed in the base. A push rod is laterally movably arranged inside the base. A hydraulic cylinder is arranged on one side of the base. The piston rod of the hydraulic cylinder is connected to the push rod through a joint. The push rod has a slanted sliding groove on the front side of its outer wall, and the cylindrical pin has a groove on the rear side of its outer wall. A slanted slider that slides in the groove is in contact with the slanted sliding groove.

[0006] Preferably, the hydraulic cylinder is fixedly mounted on one side of the base via a hydraulic cylinder end cap.

[0007] Based on the above technical features, it is convenient to install, fix and disassemble the hydraulic cylinder on one side of the base.

[0008] Preferably, a first guide sleeve that mates with a cylindrical pin is fixedly installed on the top of the base by screws, the lower end of the first guide sleeve extends into the interior of the base, a second guide sleeve that mates with a cylindrical pin is installed at the bottom of the inner cavity of the base, and the push rod is located between the first guide sleeve and the second guide sleeve.

[0009] Based on the above technical features, the first guide sleeve and the second guide sleeve facilitate the guiding of the cylindrical pin as it moves in and out of the base.

[0010] Preferably, a spacer is provided on the right side of the inner cavity of the base, and a buffer pad that cooperates with the push rod is provided on the left side of the inner cavity of the base.

[0011] Based on the above technical features, it is easy to block and buffer when the push rod moves to the leftmost side of the base cavity, reducing the occurrence of hard impacts.

[0012] Preferably, the base has copper guide sleeves that cooperate with the push rod on both the left and right sides of the inner cavity. The copper guide sleeve on the left side is located between the buffer pad and the second guide sleeve; the copper guide sleeve on the right side is located between the spacer sleeve and the second guide sleeve.

[0013] Based on the above technical features, the two copper guide sleeves facilitate the guidance of the push rod when it moves laterally in the base, thereby improving the stability during movement.

[0014] Preferably, a dustproof sealing ring that mates with a cylindrical pin is fitted onto the top of the first guide sleeve.

[0015] Based on the above technical features, it is easy to improve the sealing performance of the cylindrical pin at the top opening of the first guide sleeve when it moves.

[0016] Preferably, an O-ring is provided between the first guide sleeve and the base, and an interlocking groove for the O-ring is provided at the bottom of the end of the base.

[0017] Based on the above technical features, installing an O-ring in the interlocking groove facilitates the improvement of the sealing performance between the first guide sleeve and the base.

[0018] In summary, this utility model has at least one of the following beneficial effects: This application uses a base as a foundation, on which a hydraulic cylinder extends and retracts to drive a push rod to move. Through the sliding engagement of a slanted slider in a slanted groove, the movement of the push rod is converted into the movable extension and retraction of a cylindrical pin. This facilitates the movement of the positioning pin itself, allowing it to adjust its own movement to meet the positioning requirements of different workpieces. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention in use. Figure 2 For the present utility model Figure 1 Sectional view of position AA; Figure 3 This is a schematic diagram of the cylindrical pin of this utility model; Figure 4 For the present utility model Figure 3 Left top view; Figure 5 This is a front view of the cylinder end cap of this utility model; Figure 6 For the present utility model Figure 5 Left sectional view; Figure 7 For the present utility model Figure 5 Top sectional view; The attached diagram lists the components represented by each number as follows: 1-Cylindrical pin; 101-Groove; 102-Slanted slider; 2-First guide sleeve; 3-Cylinder end cover; 5-Joint; 6-Spacer; 7-Push rod; 701-Slanted groove; 8-Second guide sleeve; 9-Buffer pad; 10-Copper guide sleeve; 11-Cylinder; 12-Base. Detailed Implementation

[0020] The following is in conjunction with the appendix Figures 1-7 The present invention will be described in further detail below.

[0021] One embodiment of this utility model is shown below: Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 A movable positioning pin mechanism includes a cylindrical pin 1 and a base 12. The lower end of the cylindrical pin 1 is vertically and movably installed in the base 12. A push rod 7 is laterally movably arranged inside the base 12. A hydraulic cylinder 11 is arranged on one side of the base 12. The hydraulic cylinder 11 is fixedly installed on one side of the base 12 through a hydraulic cylinder end cap 3, which facilitates the installation, fixing and disassembly of the hydraulic cylinder 11 on one side of the base 12. The piston rod of the hydraulic cylinder 11 is connected to the push rod 7 through a connector 5. See Figure 1 The top of the base 12 is fixedly installed with screws to a first guide sleeve 2 that cooperates with the cylindrical pin 1. The lower end of the first guide sleeve 2 extends into the interior of the base 12. The bottom of the inner cavity of the base 12 is installed with a second guide sleeve 8 that cooperates with the cylindrical pin 1. The push rod 7 is located between the first guide sleeve 2 and the second guide sleeve 8. The first guide sleeve 2 and the second guide sleeve 8 facilitate the guidance of the cylindrical pin 1 when it moves in and out of the base 12. See Figure 1 The top of the first guide sleeve 2 is fitted with a dustproof sealing ring that mates with the cylindrical pin 1, which facilitates the improvement of the sealing performance of the cylindrical pin 1 when it moves at the top opening of the first guide sleeve 2 and reduces the entry of dust and other foreign objects into the cavity where the cylindrical pin 1 moves on the first guide sleeve 2; an O-ring is provided between the first guide sleeve 2 and the base 12, and an fitting ring groove that mates with the O-ring is opened at the bottom of the end of the base 12. By installing the O-ring in the fitting ring groove, the sealing performance between the first guide sleeve 2 and the base 12 is improved. See Figure 1A spacer 6 is provided on the right side of the inner cavity of the base 12, and a buffer pad 9 that cooperates with the push rod 7 is provided on the left side of the inner cavity of the base 12, so as to block and buffer the push rod 7 when it moves to the leftmost side of the inner cavity of the base 12, and reduce the occurrence of hard impact. See Figure 1 The base 12 has copper guide sleeves 10 on both the left and right sides of its inner cavity, which cooperate with the push rod 7. The left copper guide sleeve 10 is located between the buffer pad 9 and the second guide sleeve 8; the right copper guide sleeve 10 is located between the spacer 6 and the second guide sleeve 8. The two copper guide sleeves 10 facilitate the guidance of the push rod 7 when it moves laterally in the base 12, thereby improving the stability during movement. See Figure 1 , Figure 3 and Figure 4 The push rod 7 has a slanted groove 701 on the front side of its outer wall and a groove 101 on the rear side of its outer wall. A slanted slider 102 that slides in the groove 101 is provided in the groove 101 and is in slidable engagement with the slanted groove 701.

[0022] Working principle: When this movable positioning pin mechanism is used to position a workpiece, the base 12 serves as the foundation, and the cylinder 11 extends and retracts to drive the push rod 7 to move laterally. The lateral movement of the push rod 7 drives the inclined slide groove 701 on it to move. The movement of the inclined slide groove 701 causes the inclined slider 102 to slide in the inclined slide groove 701. The sliding of the inclined slider 102 in the inclined slide groove 701 drives the cylindrical pin 1 to move up and down, thereby converting the lateral movement of the push rod 7 into the movable extension and retraction movement of the cylindrical pin 1 perpendicular to the direction of the push rod 7. This facilitates the movement of the positioning pin itself, allowing it to adjust its own movement to meet the positioning requirements of different workpieces.

[0023] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A movable dowel mechanism comprising a cylindrical dowel (1) and a base (12), characterized in that: The lower end of the cylindrical pin (1) is vertically movably installed in the base (12). A push rod (7) is movably arranged laterally inside the base (12). A hydraulic cylinder (11) is provided on one side of the base (12). The piston rod of the hydraulic cylinder (11) is connected to the push rod (7) through a connector (5). The push rod (7) has a slanted groove (701) on the front side of its outer wall, and the cylindrical pin (1) has a groove (101) on the rear side of its outer wall. The groove (101) is provided with a slanted slider (102) that slides in cooperation with the slanted groove (701).

2. A live dowel mechanism according to claim 1, wherein: The hydraulic cylinder (11) is fixedly installed on one side of the base (12) by the hydraulic cylinder end cap (3).

3. A mechanism according to claim 1, wherein: The top of the base (12) is fixedly installed with a first guide sleeve (2) that cooperates with a cylindrical pin (1) by screws. The lower end of the first guide sleeve (2) extends into the base (12). The bottom of the inner cavity of the base (12) is installed with a second guide sleeve (8) that cooperates with a cylindrical pin (1). The push rod (7) is located between the first guide sleeve (2) and the second guide sleeve (8).

4. A mechanism according to claim 3, wherein: A spacer (6) is provided on the right side of the inner cavity of the base (12), and a buffer pad (9) that cooperates with the push rod (7) is provided on the left side of the inner cavity of the base (12).

5. A mechanism according to claim 4, wherein: The base (12) has copper guide sleeves (10) that cooperate with the push rod (7) on both the left and right sides of its inner cavity. The copper guide sleeve (10) on the left side is located between the buffer pad (9) and the second guide sleeve (8); the copper guide sleeve (10) on the right side is located between the spacer sleeve (6) and the second guide sleeve (8).

6. A mechanism according to claim 3, wherein: The top of the first guide sleeve (2) is fitted with a dustproof sealing ring that matches the cylindrical pin (1).

7. A mechanism according to claim 3, wherein: An O-ring is provided between the first guide sleeve (2) and the base (12), and an interlocking groove that matches the O-ring is provided at the bottom of the end of the base (12).

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