Positioning pin structural strength detection equipment

Abstract

The utility model discloses positioning pin structural strength detection equipment, which comprises a positioning pin mounting hole plate, and has the beneficial effects that a concave test plate, an outer fixing block, an outer fixing plate and a positioning pin hole are arranged, so that a positioning pin body is limited and fixed by the positioning pin hole, the concave test plate is driven to move by a side fixing plate, and the positioning pin mounting hole plate is arranged on the concave test plate. The two concave test plates are used for carrying out shear stress test on the positioning pin body and carrying out test treatment on the strength, and by arranging the clamping arm box, clamping sliding plates and limiting clamping blocks, when the clamping sliding plates on one side of the clamping arm box move, the clamping sliding plates move to drive the limiting clamping blocks on the inner side to enter limiting clamping grooves formed in the outer sides of the side fixing plates, so that the positioning pin body is subjected to shear stress test treatment; the limiting clamping block enters the limiting clamping groove to be limited and fixed, the position between the side fixing plate and the clamping sliding plate is fixed, the clamping arm box, the clamping sliding plate and the limiting clamping block are pulled through a tension testing machine connecting beam connected with a tension testing machine, and the strength of the positioning pin body is detected.

Description

Technical Field

[0001] The utility model relates to the technical field of strength detection, in particular to a positioning pin structure strength detection device. Background Art

[0002] The locating pin is a commonly used mechanical connector, mainly used to fix and position two or more workpieces to ensure the accuracy and stability of their relative positions. The main part of the locating pin is usually cylindrical. One end of it usually has a head for easy operation and insertion of the locating column; the other end is the part inserted into the locating hole, with a diameter slightly smaller than the size of the locating hole so that it can be inserted and positioned. The mating part of the locating pin is usually in the shape of a circular hole. The size and shape of the locating hole must match the locating column to ensure that the locating column can be accurately inserted and achieve the desired positioning effect. During the use of the locating pin structure, it is easy to cause shear fracture vertically along the axial direction due to insufficient strength of the locating pin structure. It is now difficult to test the locating pin with the assistance of a tensile testing machine to perform a shear stress test, thereby detecting the structural strength of the locating pin. Utility Model Content

[0003] The purpose of the present utility model is to provide a locating pin structure strength detection device to solve the problem raised in the above-mentioned background technology that during the use of the locating pin structure, shear fracture vertically along the axial direction may easily occur due to insufficient strength of the locating pin structure. At present, it is difficult to conduct shear stress tests on the locating pins with the assistance of a tensile testing machine, thereby detecting the structural strength of the locating pins.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locating pin structure strength testing device, comprising a locating pin mounting hole plate, wherein concave test plates are installed on both sides of the locating pin mounting hole plate, and an inner mounting groove is opened on the inner side of the concave test plate to cooperate with the locating pin mounting hole plate, and a side fixing plate is fixedly connected to the side of the concave test plate away from the inner mounting groove, and a clamping arm box is provided on one side of the side fixing plate, and a tensile testing machine connecting beam is fixedly connected to one side of the clamping arm box, and a clamping slide is symmetrically and slidably provided on the inner side of the clamping slide, and a limiting block is equidistantly fixed on the inner side of the clamping slide, and a limiting slot that cooperates with the limiting block is symmetrically opened on the outer side of the side fixing plate, and the top and bottom of the concave test plate are fixedly connected to the outer fixing plate, and the concave test plate, the outer fixing plate and the locating pin mounting hole plate are all provided with locating pin holes, and the top of the locating pin hole is provided with a locating pin body, and the outer side of the locating pin body is symmetrically provided with an external threaded surface, and the outer side of the external threaded surface is threadedly connected to a No. 1 limit nut.

[0005] As a preferred solution of the present invention: the top and the bottom of the concave test plate are both fixedly connected with external fixing blocks, and the external fixing blocks are fixedly connected to the external fixing plate.

[0006] As a preferred solution of the present invention: a bidirectional screw is provided for internal rotation of the clamp arm box, a sliding block is symmetrically threaded on the outer side of the bidirectional screw, the sliding block is slidably connected to the clamp arm box, and one side of the sliding block is fixedly connected to the clamping slide.

[0007] As a preferred solution of the present invention: a motor is installed on the top of the clamp arm box, and the output end of the motor is fixedly connected to the bidirectional screw rod.

[0008] As a preferred solution of the present invention: the outer side of the external thread surface is threadedly connected with a No. 2 limiting nut.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes that the locating pin hole limits and fixes the locating pin body by setting a concave test plate, an external fixing block, an external fixing plate and a locating pin hole, drives the concave test plate to move by the side fixing plate, and the two concave test plates perform shear stress tests on the locating pin body and test the strength, and by setting a clamping arm box, a clamping slide and a limiting block, when the clamping slide on one side of the clamping arm box moves, the movement of the clamping slide drives the limiting block on the inside to enter the limiting groove provided on the outside of the side fixing plate, and the limiting block enters the limiting groove to limit and fix, and fix the position between the side fixing plate and the clamping slide, and pulls the clamping arm box, the clamping slide and the limiting block through the tensile testing machine connecting beam connected to the tensile testing machine, thereby driving the side fixing plate and the concave test plate to move, and performing strength testing on the locating pin body. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0011] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0012] Figure 3 This is a schematic diagram of the external structure of the utility model.

[0013] In the figure: 1. Concave test plate; 2. Side fixing plate; 3. Tensile testing machine connecting beam; 4. Clamp arm box; 5. Clamping slide; 6. Limiting block; 7. Limiting slot; 8. Bidirectional screw; 9. Sliding block; 10. Motor; 11. External fixing block; 12. External fixing plate; 13. Internal mounting slot; 14. Locating pin hole; 15. Locating pin mounting hole plate; 16. Locating pin body; 17. No. 1 limit nut; 18. External threaded surface; 19. No. 2 limit nut. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See also Figures 1 to 3 The utility model provides a technical solution: a locating pin structure strength testing device, including a locating pin mounting hole plate 15, a concave test plate 1 is installed on both sides of the locating pin mounting hole plate 15, an inner mounting groove 13 is opened on the inner side of the concave test plate 1 to match the locating pin mounting hole plate 15, a side fixing plate 2 is fixedly connected to the side of the concave test plate 1 away from the inner mounting groove 13, a clamping arm box 4 is provided on one side of the side fixing plate 2, a tensile testing machine connecting beam 3 is fixedly connected to one side of the clamping arm box 4, a clamping slide 5 is symmetrically slidably provided on one side of the clamping arm box 4, a limiting block 6 is equidistantly fixed on the inner side of the clamping slide 5, a limiting groove 7 matching the limiting block 6 is symmetrically opened on the outer side of the side fixing plate 2, an outer fixing plate 12 is fixed on the top and bottom of the concave test plate 1, and a fixing groove 12 is opened on the inside of the concave test plate 1, the outer fixing plate 12 and the locating pin mounting hole plate 15. The top of the locating pin hole 14 is provided with a locating pin body 16, and the outer side of the locating pin body 16 is symmetrically provided with an external threaded surface 18, and the outer side of the external threaded surface 18 is threadedly connected to a No. 1 limiting nut 17, limiting the block 6 to enter the limiting slot 7 on the outer side of the side fixing plate 2, and the position between the side fixing plate 2 and the clamping slide 5 is fixed by limiting the position between the limiting block 6 and the limiting slot 7. The tensile testing machine is used to pull the tensile testing machine connecting beam 3, and the tensile testing machine connecting beam 3 pulls the clamping arm box 4, the clamping slide 5, the limiting block 6, the limiting slot 7 and the side fixing plate 2, thereby pulling the concave test plate 1 outward, and the concave test plate 1 and the outer fixed plate 12 on the outer side perform a tensile test on the locating pin body 16 through the locating pin hole 14, thereby testing the shear stress of the locating pin body 16 and testing the strength.

[0016] Among them, the top and bottom of the concave test plate 1 are fixed with external fixing blocks 11, and the external fixing blocks 11 are fixed to the external fixing plate 12. The external fixing plate 12 is fixed to the outside of the concave test plate 1 by fixing the external fixing blocks 11, the external fixing plate 12 and the concave test plate 1.

[0017] Among them, the internal rotation of the clamp arm box 4 is provided with a bidirectional screw rod 8, the outer side of the bidirectional screw rod 8 is symmetrically threaded with a sliding block 9, the sliding block 9 is slidingly connected to the clamp arm box 4, and one side of the sliding block 9 is fixedly connected to the clamping slide 5.

[0018] Among them, a motor 10 is installed on the top of the clamping arm box 4, and the output end of the motor 10 is fixedly connected to the bidirectional screw 8. The output end of the motor 10 drives the bidirectional screw 8 to rotate and adjust, and the outer sliding block 9 is moved and adjusted by the bidirectional screw 8, and the clamping slide 5 on one side of the sliding block 9 is adjusted. The side fixed plate 2 is clamped by the two clamping slides 5, and the inner limiting block 6 and the limiting slot 7 are used to limit and fix the positions of the clamping slide 5 and the side fixed plate 2.

[0019] Among them, the outer thread of the external thread surface 18 is connected with a No. 2 limiting nut 19, which is used to push the outer side of the outer fixing plate 12 through the outer No. 1 limiting nut 17. The two No. 1 limiting nuts 17 push the outer fixing plate 12 to limit and fix the position of the locating pin body 16, and then the No. 2 limiting nut 19 on the outer side of the external thread surface 18 is used to push one side of the No. 1 limiting nut 17 to stabilize the installation position of the No. 1 limiting nut 17 and the No. 2 limiting nut 19 on the outer side of the external thread surface 18, and stably fix the locating pin body 16 in the locating pin hole 14.

[0020] Specifically, when in use, the locating pin mounting hole plate 15 is installed in the inner mounting groove 13 on the inner side of the two concave test plates 1, and the position of the tensile testing machine connecting beam 3 and the clamping arm box 4 is adjusted. The locating pin body 16 passes through the outer fixing plate 12, the concave test plate 1, and the locating pin hole 14 in the locating pin mounting hole plate 15, and the outer side of the outer fixing plate 12 is pushed by the outer No. 1 limiting nut 17. The two No. 1 limiting nuts 17 push the outer fixing plate 12 to limit and fix the position of the locating pin body 16, and then the No. 2 limiting nut 19 on the outer side of the external threaded surface 18 is pushed to one side of the No. 1 limiting nut 17, and the installation position of the No. 1 limiting nut 17 and the No. 2 limiting nut 19 on the outer side of the external threaded surface 18 is stabilized, and the locating pin body 16 in the locating pin hole 14 is stably fixed. When the tensile testing machine connecting beam 3 moves, it drives the clamping arm box 4, the clamping slide 5 and the limiting block 6 to move. The motor 10 is controlled by an external controller, and the external power supply is energized. The output end of the motor 10 drives the bidirectional screw 8 to rotate. When the bidirectional screw 8 rotates, it drives the sliding block 9 on the outside to move. When the sliding block 9 moves, it drives the clamping slide 5 and the limiting block 6 to move. The limiting block 6 enters the limiting slot 7 on the outside of the side fixed plate 2. The position between the side fixed plate 2 and the clamping slide 5 is fixed by the limiting between the limiting block 6 and the limiting slot 7. The tensile testing machine connecting beam 3 is pulled by the tensile testing machine, and the tensile testing machine connecting beam 3 pulls the clamping arm box 4, the clamping slide 5, the limiting block 6, the limiting slot 7 and the side fixed plate 2, thereby pulling the concave test plate 1 outward. The concave test plate 1 and the outer fixed plate 12 on the outside perform a tensile test on the locating pin body 16 through the locating pin hole 14, thereby testing the shear stress of the locating pin body 16 and testing the strength.

[0021] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0023] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning pin structure strength testing device, comprising a positioning pin mounting hole plate (15), characterized in that: A concave test plate (1) is installed on both sides of the positioning pin mounting hole plate (15), and an inner mounting groove (13) cooperating with the positioning pin mounting hole plate (15) is provided on the inner side of the concave test plate (1), and a side fixing plate (2) is fixedly connected to the side of the concave test plate (1) away from the inner mounting groove (13), and a clamping arm box (4) is provided on one side of the side fixing plate (2), and a tensile testing machine connecting beam (3) is fixedly connected to one side of the clamping arm box (4), and a clamping slide plate (5) is symmetrically slidably provided on one side of the clamping arm box (4), and a limiting block ( 6), the outer side of the side fixing plate (2) is symmetrically provided with a limiting slot (7) that cooperates with the limiting block (6), the top and bottom of the concave test plate (1) are fixedly connected with an external fixing plate (12), the interior of the concave test plate (1), the external fixing plate (12) and the positioning pin mounting hole plate (15) are all provided with a positioning pin hole (14), the top of the positioning pin hole (14) is provided with a positioning pin body (16), the outer side of the positioning pin body (16) is symmetrically provided with an external threaded surface (18), and the outer side of the external threaded surface (18) is threadedly connected to a No. 1 limit nut (17).

2. The positioning pin structure strength testing device according to claim 1, characterized in that: The top and bottom of the concave test plate (1) are both fixedly connected to external fixing blocks (11), and the external fixing blocks (11) are fixedly connected to the external fixing plate (12).

3. The positioning pin structure strength testing device according to claim 1, characterized in that: The clamping arm box (4) is internally rotatably provided with a bidirectional screw rod (8), the outer side of the bidirectional screw rod (8) is symmetrically threadedly connected with a sliding block (9), the sliding block (9) is slidably connected to the clamping arm box (4), and one side of the sliding block (9) is fixedly connected to the clamping slide plate (5).

4. The positioning pin structure strength testing device according to claim 3, characterized in that: A motor (10) is installed on the top of the clamping arm box (4), and the output end of the motor (10) is fixedly connected to a bidirectional screw rod (8).

5. The positioning pin structure strength testing device according to claim 1, characterized in that: The outer side of the external thread surface (18) is threadedly connected with a No. 2 limiting nut (19).

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