Self-locking precision positioning part

Abstract

The utility model discloses a self -locking type precision positioning part relates to positioning part technical field, including the casing, the top of casing is provided with the positioning piece, the outside of positioning piece is opened and is provided with the limiting slot, both sides of casing all are provided with fixed cylinder, two fixed cylinder opposite ends all are provided with the connecting ring. The utility model discloses through the bottom end of positioning piece inserts the top of casing, and positioning piece will touch two limit blocks after continuously pressing down, and two limit blocks will move towards each other after being extruded, and the movable rod will slide to the casing outside in the fixed cylinder, and the spring will be extruded by limit block movement, when positioning piece is inserted to the bottom side in the casing, the spring of this time will release elastic and push the limit block and is connected and touches in the limiting slot, through the thread groove that the movable rod set up is rethreaded and is installed in the connecting ring after, and positioning piece will be positioned and fixed in the casing, avoids that positioning piece possibly can shift or fall off.

Description

Technical Field

[0001] This utility model relates to the field of positioning parts technology, specifically a self-locking precision positioning part. Background Technology

[0002] In modern industry and the design and manufacturing of various precision instruments and equipment, positioning components play a crucial role. Positioning components are specific parts, meticulously designed and manufactured using rigorous processes, used to determine the relative positions of other components in mechanical devices or systems. They possess high precision and reliability, and through coordinated operation with other components, ensure that the entire system maintains accurate positional relationships during operation, thereby guaranteeing the normal operation and stable performance of the equipment.

[0003] However, in the existing technology, traditional positioning parts usually need to be fixed by external devices (such as screws, clamps, etc.), which increases the complexity of installation and disassembly. If the external fixation fails, the positioning part may shift or fall off, resulting in inaccurate positioning. Therefore, we provide a self-locking precision positioning part. Utility Model Content

[0004] The purpose of this invention is to provide a self-locking precision positioning part to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-locking precision positioning part, comprising a housing, a positioning element provided on the top of the housing, a limiting groove formed on the outside of the positioning element, fixed cylinders provided on both sides of the housing, a connecting ring provided at the opposite ends of the two fixed cylinders, bolts provided in the threaded grooves formed at the top and bottom of the two connecting rings, movable rods provided inside the two fixed cylinders, springs provided on the outside of the two movable rods, limiting blocks provided at the opposite ends of the two movable rods, sliders provided at the bottom of the two limiting blocks, two pulleys provided at the bottom of the two sliders, two sliding grooves formed on the bottom side of the inside of the housing, pull blocks provided at the opposite ends of the two movable rods, and a positioning mechanism provided inside the housing.

[0006] As a further preferred embodiment of this technical solution, the positioning mechanism includes a positioning post, the bottom of which is fixedly connected to the bottom side inside the housing, and positioning strips are fixedly connected to both sides of the outer side of the positioning post.

[0007] As a further preferred embodiment of this technical solution, a positioning post is included, and positioning grooves are provided on both sides of the inner wall of the positioning member. The outer side of the positioning strip is slidably connected to the inner wall of the positioning groove, and the positioning member is inserted into the outer side of the positioning post.

[0008] As a further preferred embodiment of this technical solution, the outer part of the positioning member extends through the slot opened at the top of the housing into the interior of the housing, and a fixing cylinder is fixedly connected to the slot opened on both sides of the housing, and a connecting ring is fixedly connected to the opposite ends of the two fixing cylinders.

[0009] As a further preferred embodiment of this technical solution, the movable rod is slidably connected to the inner wall of the fixed cylinder, the movable rod and the connecting ring are limited and fixed by bolts, and a limit block is fixedly connected to one end of the movable rod near the positioning column.

[0010] As a further preferred embodiment of this technical solution, one end of the spring is fixedly connected to one side of the limiting block, the other end of the spring is fixedly connected to the side of the fixed cylinder near the limiting block, and a slider is fixedly connected to the bottom of the limiting block.

[0011] As a further preferred embodiment of this technical solution, a pulley is rotatably connected in the slot at the bottom of the slider, and both the slider and the pulley are slidably connected in the slot. A pull block is fixedly connected to the end of the movable rod away from the limiting block.

[0012] This utility model provides a self-locking precision positioning part, which has the following advantages:

[0013] (1) This utility model removes the bolt from the threaded groove of the connecting ring and the movable rod, thereby releasing the movable rod and the limiting block in the housing. The bottom end of the positioning part is inserted into the top of the housing. After the positioning part is continuously pressed down, its bottom will touch the two limiting blocks. After the two limiting blocks are subjected to the squeezing force, they will move towards each other. The movable rod will slide out of the housing inside the fixed cylinder, and the spring will be squeezed by the movement of the limiting block. When the positioning part is inserted into the bottom side inside the housing, the spring will release its elasticity and push the limiting block to engage and abut in the limiting groove. After the bolt is re-threaded into the threaded groove opened in the connecting ring and the movable rod, the positioning part will be fixed in the housing, preventing the positioning part from being displaced or falling off.

[0014] (2) The present invention can stably insert the positioning component into the outside of the positioning post by means of the positioning strip and positioning groove, which can limit the positioning component and the positioning post and prevent the positioning component from rotating on the positioning post. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a self-locking precision positioning part according to the present invention.

[0016] Figure 2 This is a cross-sectional front view of a self-locking precision positioning part according to the present invention.

[0017] Figure 3This is a structural schematic diagram of a self-locking precision positioning part of this utility model, viewed from below.

[0018] Figure 4 This is a partial side view of a self-locking precision positioning part according to the present invention.

[0019] In the diagram: 11. Housing; 12. Positioning component; 13. Limiting groove; 14. Fixing cylinder; 15. Connecting ring; 16. Bolt; 17. Movable rod; 18. Spring; 19. Limiting block; 110. Slider; 111. Pulley; 112. Slide groove; 113. Pull block; 2. Positioning mechanism; 21. Positioning post; 22. Positioning strip; 23. Positioning groove. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1-4 In this embodiment, a self-locking precision positioning part includes a housing 11. A positioning element 12 is provided on the top of the housing 11. A limiting groove 13 is formed on the outside of the positioning element 12. Fixed cylinders 14 are provided on both sides of the housing 11. A connecting ring 15 is provided at the opposite ends of the two fixed cylinders 14. The outside of the positioning element 12 extends through a slot formed on the top of the housing 11 into the inside of the housing 11. Fixed cylinders 14 are fixedly connected to the slots formed on both sides of the housing 11. A connecting ring 15 is fixedly connected to the opposite ends of the two fixed cylinders 14. Bolts 16 are provided in the threaded grooves formed on the top and bottom of the two connecting rings 15. Movable rods 17 are provided inside the two fixed cylinders 14. Springs 18 are provided on the outside of the two movable rods 17. A limiting block 19 is provided at the opposite ends of the two movable rods 17. The outside of the movable rods 17 is slidably connected to the inner wall of the fixed cylinder 14. The rod and connecting ring 15 are fixed by bolts 16. The end of the movable rod 17 near the positioning post 21 is fixedly connected to the limiting block 19. The bottom of the two limiting blocks 19 is provided with sliders 110. One end of the spring 18 is fixedly connected to one side of the limiting block 19. The other end of the spring 18 is fixedly connected to the side of the fixed cylinder 14 near the limiting block 19. The bottom of the limiting block 19 is fixedly connected to the slider 110. The bottom of the two sliders 110 is provided with two pulleys 111. The bottom of the housing 11 has two sliding grooves 112. The opposite ends of the two movable rods 17 are provided with pull blocks 113. The pulleys 111 are rotatably connected in the slots at the bottom of the sliders 110. The sliders 110 and pulleys 111 are slidably connected in the sliding grooves 112. The end of the movable rod 17 away from the limiting block 19 is fixedly connected to the pull block 113. The housing 11 has a positioning mechanism 2 inside.

[0022] In this embodiment, when the positioning part needs to be positioned and installed inside the housing 11, the bolt 16 is first removed from the threaded groove of the connecting ring 15 and the movable rod 17. Then, the movable rod 17 and the limiting block 19 are released from their limiting positions within the housing. Subsequently, the bottom end of the positioning part 12 is inserted into the top of the housing 11. After the positioning part 12 is continuously pressed down, its bottom will touch the two limiting blocks 19. The two limiting blocks 19 will move in opposite directions after being subjected to the squeezing force. The slider 110 will slide in the slide groove 112, which can ensure the stability of the limiting block 19 during movement. The provided pulley 111 makes the slider 110 move more smoothly. At the same time, the movable rod 17 and the limiting block 19 will move more smoothly. The moving rod 17 will slide outward from the housing 11 inside the fixed cylinder 14, and the spring 18 will be squeezed by the movement of the limiting block 19, causing it to contract and deform. When the positioning part 12 is inserted into the bottom side inside the housing 11, the spring 18 will release its elasticity and push the limiting block 19 to engage and abut in the limiting groove 13. The positions of the threaded grooves opened by the moving column and the connecting ring 15 will also be vertically aligned. After the bolt 16 is re-threaded into the threaded grooves opened by the connecting ring 15 and the moving rod 17, the moving rod 17 and the limiting block 19 will be limited and fixed, and the positioning part 12 will be positioned and fixed inside the housing 11 to prevent the positioning part from shifting or falling off.

[0023] like Figures 1-4 The positioning mechanism 2 includes a positioning post. The bottom of the positioning post is fixedly connected to the bottom side inside the housing 11. Positioning strips 22 are fixedly connected to both sides of the outer side of the positioning post. Positioning grooves 23 are opened on both sides of the inner wall of the positioning member 12. The outer side of the positioning strip 22 is slidably connected to the inner wall of the positioning groove 23. The positioning member 12 is inserted into the outer side of the positioning post 21.

[0024] In this embodiment, when the positioning member 12 is inserted into the housing 11, the positioning strip 22 and the positioning groove 23 can stably insert the positioning member 12 into the outside of the positioning post 21, thereby limiting the positioning member 12 and the positioning post 21 and preventing the positioning member 12 from rotating on the positioning post 21.

[0025] This utility model provides a self-locking precision positioning part, the specific working principle of which is as follows:

[0026] When it is necessary to install and fix the positioning part inside the housing 11, first remove the bolt 16 between the connecting ring 15 and the movable rod 17 to release the constraint of the limiting block 19. At this time, the movable rod 17 and the limiting block 19 are in a free state inside the housing 11, preparing for the installation of the positioning part 12. Insert the positioning part 12 into the outside of the positioning post 21. The positioning strip 22 and the positioning groove 23 cooperate to achieve initial positioning, preventing the positioning part 12 from rotating or shifting on the positioning post 21. Continue to press down on the positioning part 12 until its bottom contacts the limiting block 19, applying a squeezing force to make the two limiting blocks 19 move towards each other. After being pressed, the limiting block 19 moves along the slide groove 112. The slider 110 maintains smooth sliding with the assistance of the pulley 111. To ensure accurate movement of the limiting block 19, the movable rod 17 slides synchronously outward from the fixed cylinder 14. The spring 18 is compressed and stores energy due to the displacement of the limiting block 19. When the positioning component 12 reaches the bottom of the housing 11, the spring 18 releases its elastic potential energy, pushing the limiting block 19 into the limiting groove 13, thus completing the axial limiting of the positioning component 12. The position of the movable rod 17 is adjusted so that its thread groove is vertically aligned with the thread groove of the connecting ring 15. The bolt 16 is screwed in again to fix the movable rod 17, restoring the constraint state of the limiting block 19. Through the mechanical engagement of the limiting block 19 and the limiting groove 13, the continuous thrust of the spring 18, and the tightening action of the bolt 16, the positioning component 12 and the positioning post 21 are firmly fixed, preventing displacement or detachment due to vibration or external force.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking precision positioning part, comprising a housing (11), characterized in that: The top of the housing (11) is provided with a positioning member (12), and the positioning member (12) has a limiting groove (13) on its outside. Both sides of the housing (11) are provided with fixed cylinders (14), and the opposite ends of the two fixed cylinders (14) are provided with connecting rings (15). Bolts (16) are provided in the threaded grooves at the top and bottom of the two connecting rings (15). Movable rods (17) are provided inside the two fixed cylinders (14), and springs (18) are provided on the outside of the two movable rods (17). Limit blocks (19) are provided at the opposite ends of the two movable rods (17). Slider blocks (110) are provided at the bottom of the two limit blocks (19). Two pulleys (111) are provided at the bottom of the two sliders (110). Two sliding grooves (112) are provided on the bottom side inside the housing (11). Pull blocks (113) are provided at the opposite ends of the two movable rods (17). A positioning mechanism (2) is provided inside the housing (11).

2. The self-locking precision positioning part according to claim 1, characterized in that: The positioning mechanism (2) includes a positioning post, the bottom of which is fixedly connected to the bottom side inside the housing (11), and positioning strips (22) are fixedly connected to both sides of the outer side of the positioning post.

3. A self-locking precision positioning part according to claim 2, characterized in that: The positioning component (12) includes a positioning post (21), and positioning grooves (23) are provided on both sides of the inner wall of the positioning component (12). The outer side of the positioning strip (22) is slidably connected to the inner wall of the positioning groove (23), and the positioning component (12) is inserted into the outer side of the positioning post (21).

4. A self-locking precision positioning part according to claim 1, characterized in that: The outer part of the positioning member (12) extends through the slot opened at the top of the housing (11) to the inside of the housing (11). The slots opened on both sides of the housing (11) are fixedly connected to the fixing cylinder (14), and the opposite ends of the two fixing cylinders (14) are fixedly connected to the connecting ring (15).

5. A self-locking precision positioning part according to claim 1, characterized in that: The movable rod (17) is slidably connected to the inner wall of the fixed cylinder (14). The movable rod (17) and the connecting ring (15) are fixed by bolts (16). A limit block (19) is fixedly connected to one end of the movable rod (17) near the positioning column (21).

6. A self-locking precision positioning part according to claim 1, characterized in that: One end of the spring (18) is fixedly connected to one side of the limiting block (19), and the other end of the spring (18) is fixedly connected to the side of the fixed cylinder (14) near the limiting block (19). A slider (110) is fixedly connected to the bottom of the limiting block (19).

7. A self-locking precision positioning part according to claim 1, characterized in that: The slider (110) has a slot at the bottom of which a pulley (111) is rotatably connected. The slider (110) and the pulley (111) are slidably connected in the groove (112). The end of the movable rod (17) away from the limiting block (19) is fixedly connected to a pull block (113).

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