Positioning pin

Abstract

The utility model discloses a positioning pin which comprises a connecting base, a positioning groove is formed in an inner cavity of the connecting base, a positioning pin body is movably arranged in an inner cavity of the positioning groove, a movable groove is formed in an inner cavity of the positioning pin body, a push rod is movably arranged in an inner cavity of the movable groove, a threaded connecting block is connected to the top of the push rod, and a threaded connecting groove is formed in the top of the positioning pin body. A containing groove is formed in the outer wall of the positioning pin in a penetrating mode, a clamping block is movably arranged in an inner cavity of the containing groove, one end of the clamping block is connected with a pushing block, a sliding groove is formed in the outer side of the containing groove, a sliding rod is fixedly arranged in an inner cavity of the sliding groove, a sliding block is movably arranged in an inner cavity of the sliding groove, and a clamping groove is formed in the outer side of the positioning groove. And through cooperative use of the push rod, the push block, the clamping block and the clamping groove, the connecting depth of the positioning pin and the positioning groove can be conveniently adjusted, meanwhile, the connecting state of the positioning pin and the positioning groove can be conveniently adjusted, the use flexibility of the device is improved, and the device is more practical.

Description

Technical Field

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

[0002] A locating pin is a part used to limit the freedom of an object. It is widely used in mechanical motion equipment, especially in machine tool fixtures as a common positioning part. Its main function is to determine the position of an object in two-dimensional space. It achieves positioning and connection through geometric matching to ensure the relative position stability between the connecting parts.

[0003] After searching, in the prior art, the utility model with publication number CN214998697U discloses a new type of positioning pin, including a positioning pin body, a positioning pin fixing head integrally formed on the outer wall at one end of the positioning pin body, and a square head integrally formed on the end of the positioning pin fixing head away from the positioning pin body, a pin tail integrally formed on the outer wall on the other side of the positioning pin body, and a pin tail thread is provided on the outer wall on one side of the pin tail, and a fixing head thread is provided on the outer wall on one side of the positioning pin fixing head. The utility model provides the positioning pin body, the pin tail and the pin tail thread, and the pin tail and the pin tail thread can fix the positioning pin body when in use, and the pin tail diameter is smaller than the diameter of the positioning pin body, and can prevent the positioning pin from being clamped by the positioning hole after the positioning hole is reduced due to the influence of temperature and vibration during use, so that the positioning pin can be more easily disassembled after use, thereby improving the work efficiency of the staff in disassembling the positioning pin.

[0004] And the prior art, a positioning pin with publication number CN211951112U.

[0005] The above-mentioned various technical solutions make the use of the positioning pin more effective through different methods, but the above-mentioned methods still have the disadvantage of not being flexible to use. It is not convenient to adjust the insertion depth of the positioning pin according to actual conditions, and it is not convenient to control the activity state of the positioning pin after insertion, which affects the practicality of the device. Utility Model Content

[0006] The purpose of the utility model is to provide a positioning pin to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it includes a connecting seat, the inner cavity of the connecting seat is provided with a positioning groove, the inner cavity of the positioning groove is movably provided with a positioning pin, the inner cavity of the positioning pin is provided with a movable groove, the inner cavity of the movable groove is movably provided with a push rod, the top of the push rod is connected with a threaded connecting block, the top of the positioning pin is provided with a threaded connecting groove, the outer wall of the positioning pin is penetrated by a receiving groove, the inner cavity of the receiving groove is movably provided with a clamping block, one end of the clamping block is connected to a push block, the outer side of the receiving groove is provided with a sliding groove, the inner cavity of the sliding groove is fixedly provided with a sliding rod, the inner cavity of the sliding groove is movably provided with a sliding block, and the outer side of the positioning groove is provided with a clamping groove.

[0008] Preferably, the card slot comprises an annular card slot and a one-way card slot, the one-way card slot is consistent with the shape of the card block, and the card block is movably connected to the card slot.

[0009] Preferably, the push block is triangular, and the bottom edge of the push rod is arc-shaped.

[0010] Preferably, the inner cavity of the slider is provided with a linear bearing, and the slider is slidably connected to the slide rod via the linear bearing.

[0011] Preferably, the outer ring of the slide rod is provided with a return spring.

[0012] Preferably, a groove is provided on the top of the threaded connection block, and a fixing plate is connected to the inner wall of the groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The positioning pin, through the coordinated use of the push rod, the push block, the clamping block and the clamping slot, can facilitate the adjustment of the access depth of the positioning pin and the positioning slot, and can also facilitate the adjustment of the access state of the positioning pin and the positioning slot, thereby improving the use flexibility of the device and making the device more practical.

[0015] 2. The positioning pin can be easily disassembled through the coordinated use of the return spring, the slider and the slide rod, thereby improving the convenience of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 It is a cross-sectional schematic diagram of the positioning pin structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the slide bar structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the opening of the annular slot structure of the utility model.

[0020] Figure 5 It is a schematic diagram of the opening of the one-way slot structure of the utility model.

[0021] In the figure: 1. connecting seat; 2. positioning groove; 3. positioning pin; 4. movable groove; 5. push rod; 6. threaded connection block; 7. groove; 8. fixing plate; 9. threaded connection groove; 10. storage groove; 11. clamping block; 12. push block; 13. slide groove; 14. return spring; 15. slider; 16. linear bearing; 17. slide rod; 18. clamping groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: See Figure 1-5 The utility model provides a technical solution: a positioning pin, including a connecting seat 1, a positioning groove 2 is provided in the inner cavity of the connecting seat 1, a positioning pin 3 is movably provided in the inner cavity of the positioning groove 2, a movable groove 4 is provided in the inner cavity of the positioning pin 3, a push rod 5 is movably provided in the inner cavity of the movable groove 4, a threaded connecting block 6 is connected to the top of the push rod 5, a threaded connecting groove 9 is provided on the top of the positioning pin 3, a receiving groove 10 is penetrated through the outer wall of the positioning pin 3, a clamping block 11 is movably provided in the inner cavity of the receiving groove 10, a push block 12 is connected to one end of the clamping block 11, a sliding groove 13 is provided on the outer side of the receiving groove 10, a sliding rod 17 is fixedly provided in the inner cavity of the sliding groove 13, a sliding block 15 is movably provided in the inner cavity of the sliding groove 13, and a clamping groove 18 is provided on the outer side of the positioning groove 2.

[0024] The card slot 18 includes an annular card slot and a one-way card slot. The one-way card slot matches the shape of the card block 11 , and the card block 11 is movably connected to the card slot 18 .

[0025] The push block 12 is triangular, and the bottom edge of the push rod 5 is arc-shaped.

[0026] In this embodiment, when the push rod 5 is pressed down, the push block 12 is pushed to both sides from above, and the push block 12 drives the clamping block 11 to move axially until the clamping block 11 is clamped in the clamping groove 18, so that the connection between the positioning groove 2 and the positioning pin 3 can be locked; the number of the clamping grooves 18 can be opened axially according to actual needs, so as to facilitate the adjustment of the access depth of the positioning pin 3 and the positioning groove 2; when the clamping block 11 is in contact with the annular clamping groove ( Figure 4As shown in the figure, the positioning pin 3 and the positioning slot 2 are connected in rotation. When the clamping block 11 is connected with the one-way clamping slot ( Figure 5 When the positioning pin 3 and the positioning groove 2 are engaged (as shown in the figure), the positioning pin 3 and the positioning groove 2 are fixedly connected, so that the access state of the positioning pin 3 and the positioning groove 2 can be easily adjusted, so that the use of the positioning pin is more flexible and the practicality of the device is improved.

[0027] The inner cavity of the slider 15 is provided with a linear bearing 16 , and the slider 15 is slidably connected to the slide rod 17 via the linear bearing 16 .

[0028] The outer ring of the slide rod 17 is provided with a return spring 14 .

[0029] In this embodiment, when the positioning pin 2 needs to be removed, the push rod 5 is moved upward until the push rod 5 is out of contact with the push block 12. At this time, the return spring 14 loses pressure and rebounds the slider 15. At this time, the slider 15 moves in the inner cavity of the slide groove 13 and pulls the block 11 back into the receiving groove 10. At this time, the positioning pin 3 and the positioning groove 2 lose their position restrictions. At this time, the positioning pin 3 can be disassembled. The overall structure is relatively simple and the operation is relatively convenient, which is suitable for popularization and use. The linear bearing 16 is a prior art, which can reduce the friction generated by the slider 15 when the outer ring of the slide rod 17 moves to a certain extent, making the sliding of the slider 15 smoother. At the same time, it can reduce the wear between the structures and improve the service life of the device.

[0030] A groove 7 is formed on the top of the threaded connection block 6 , and a fixing plate 8 is connected to the inner wall of the groove 7 .

[0031] In this embodiment, after the push rod 5 moves downward, the threaded connection block 6 is threadedly connected to the threaded connection groove 9. At this time, the position of the push rod 5 can be locked to prevent the push rod 5 from falling off, thereby improving the connection stability between the locating pin 3 and the locating groove 2; the threaded connection block 6 can be easily rotated through the fixing plate 8, making the use of the device more convenient; the groove 7 is used to store and hide the fixing plate 8 to avoid protrusions above the threaded connection block 6, thereby improving the overall aesthetics of the device.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning pin, comprising a connecting seat (1), characterized in that: The inner cavity of the connecting seat (1) is provided with a positioning groove (2), the inner cavity of the positioning groove (2) is movably provided with a positioning pin (3), the inner cavity of the positioning pin (3) is provided with a movable groove (4), the inner cavity of the movable groove (4) is movably provided with a push rod (5), the top of the push rod (5) is connected with a threaded connection block (6), the top of the positioning pin (3) is provided with a threaded connection groove (9), the outer wall of the positioning pin (3) is penetrated with a receiving groove (10), the inner cavity of the receiving groove (10) is movably provided with a clamping block (11), one end of the clamping block (11) is connected with a pushing block (12), the outer side of the receiving groove (10) is provided with a sliding groove (13), the inner cavity of the sliding groove (13) is fixedly provided with a sliding rod (17), the inner cavity of the sliding groove (13) is movably provided with a sliding block (15), and the outer side of the positioning groove (2) is provided with a clamping groove (18).

2. A positioning pin according to claim 1, characterized in that: The card slot (18) comprises an annular card slot and a one-way card slot, the one-way card slot is consistent in shape with the card block (11), and the card block (11) is movably connected to the card slot (18).

3. A positioning pin according to claim 1, characterized in that: The push block (12) is triangular in shape, and the bottom edge of the push rod (5) is arc-shaped.

4. A positioning pin according to claim 1, characterized in that: The inner cavity of the slider (15) is provided with a linear bearing (16), and the slider (15) is slidably connected to the slide rod (17) via the linear bearing (16).

5. A positioning pin according to claim 1, characterized in that: The outer ring of the slide rod (17) is provided with a return spring (14).

6. A positioning pin according to claim 1, characterized in that: A groove (7) is provided on the top of the threaded connection block (6), and a fixing plate (8) is connected to the inner wall of the groove (7).

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