Clamping positioning mechanism for screw welding

Abstract

The utility model relates to a clamping positioning mechanism for screw welding, including sleeve and screw positioning sleeve pipe, sleeve and screw positioning sleeve pipe place have screw body, the top surface of screw positioning sleeve pipe is provided with clamping positioning subassembly, and the rotation is connected between sleeve and clamping positioning subassembly, clamping positioning subassembly includes fixed plate and a plurality of clamping plate, and the through -hole is seted up in fixed plate, a plurality of clamping plate movable mounting are in fixed plate top surface, and sleeve can drive a plurality of clamping plate and carry out the rotation to the clamping of screw body. This technical scheme, through clockwise or counterclockwise rotation sleeve, can quickly scatter or draw together a plurality of fixed plate, thereby quickly sequentially enter screw body into screw positioning sleeve pipe and complete clamping positioning through the through -hole on sleeve and fixed plate, solved the problem that the uneven distribution of the prior art because of clamping force or clamping point position is not accurate, is easy to lead to the deviation or inclination of screw body in the clamping process, thereby influence the welding accuracy of subsequent.

Description

Technical Field

[0001] This utility model relates to the field of screw processing technology, and specifically to a clamping and positioning mechanism for screw welding. Background Technology

[0002] Welding is a crucial process in screw manufacturing and processing. The quality of screw welding directly affects its connection strength and service life, and clamping and positioning during the welding process are key steps to ensure welding quality. Traditional screw clamping mechanisms often use simple mechanical clamping methods, such as spring clamps and pneumatic clamps. When clamping screws, these methods are prone to uneven clamping force distribution or inaccurate clamping point positioning, which can easily cause the screw to shift or tilt during clamping, thus affecting the subsequent welding accuracy. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a clamping and positioning mechanism for screw welding, so as to solve the technical problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution:

[0005] A clamping and positioning mechanism for screw welding includes a sleeve and a screw positioning sleeve, a screw body is placed inside the sleeve and the screw positioning sleeve, a clamping and positioning component is provided on the top surface of the screw positioning sleeve, and the sleeve and the clamping and positioning component are rotatably connected.

[0006] The clamping and positioning assembly includes a fixed plate and multiple clamping plates. The fixed plate has a through hole that extends longitudinally through the fixed plate and communicates with the screw positioning sleeve. The multiple clamping plates are movably mounted on the top surface of the fixed plate. The sleeve can drive the multiple clamping plates to rotate and clamp the screw body.

[0007] Furthermore, the clamping and positioning assembly also includes an external gear ring, multiple fixed rods and multiple pull rods. One end of each fixed rod is connected to the top surface of the fixed plate, and the other end extends upward and is connected to a limit ring. One end of each pull rod is movably connected to multiple clamping plates, and the other end is movably connected to the external gear ring. The multiple clamping plates are respectively sleeved on the multiple fixed rods.

[0008] An internal gear ring is provided on the inner side of the sleeve, and the internal gear ring meshes with the external gear ring.

[0009] Furthermore, a limiting groove is provided on the top surface of the fixed plate, and a limiting block is provided on the bottom surface of the sleeve for bottom surface fixing connection, and the limiting block is engaged in the limiting groove.

[0010] Furthermore, the outer side of the fixing plate has several locking holes, and the outer side of the sleeve is provided with fixing components that engage with the locking holes.

[0011] Furthermore, the fixing component includes a fixing seat and a connecting cylinder. A groove is provided on one side of the fixing seat, and the groove extends along the upper and lower sides of the fixing seat. The connecting cylinder is slidably fitted in the groove. A limiting plate is slidably fitted inside the connecting cylinder. A movable rod is connected to one side of the limiting plate. The end of the movable rod away from the limiting plate passes through the bottom end of the connecting cylinder. A first return spring is connected to the other side of the limiting plate. A fixing block is connected to the end of the first return spring away from the limiting plate. When the first return spring is freely extended, the fixing block abuts against the opening of the connecting cylinder.

[0012] Furthermore, movable grooves are provided on both sides of the inner wall of the slide groove, and connecting blocks are provided on both sides of the movable grooves. The two connecting blocks are slidably fitted in the two movable grooves respectively. A second return spring is provided in the movable groove, and the two ends of the second return spring are connected to the top wall of the movable groove and the top surface of the connecting block respectively.

[0013] Furthermore, a buffer spring is provided on the inner bottom wall of the screw positioning sleeve. One end of the buffer spring is connected to the inner bottom wall of the screw positioning sleeve, and the other end extends upward and is connected to a magnet. A guide rod is provided inside the buffer spring. The guide rod is a telescopic structure, and its upper and lower ends are respectively connected to the bottom surface of the magnet and the inner bottom wall of the screw positioning sleeve.

[0014] The beneficial effects of this utility model are as follows:

[0015] This clamping and positioning mechanism for screw welding can quickly disperse or bring together multiple fixing plates by rotating the sleeve clockwise or counterclockwise. This allows the screw body to pass through the through holes on the sleeve and fixing plate in sequence and enter the screw positioning sleeve to complete the clamping and positioning. This solves the problem in the prior art where uneven distribution of clamping force or inaccurate clamping point position can easily cause the screw body to shift or tilt during the clamping process, thus affecting the subsequent welding accuracy.

[0016] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the screw positioning sleeve of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the present invention;

[0020] Figure 4This is an exploded view of the clamping and positioning component of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the fixing component of this utility model.

[0022] In the diagram: 1. Sleeve; 2. Screw positioning sleeve; 3. Screw body; 4. Clamping and positioning assembly; 41. Fixing plate; 42. Clamping plate; 43. External gear ring; 44. Fixing rod; 45. Pull rod; 46. Limiting ring; 47. Internal gear ring; 5. Limiting groove; 6. Limiting block; 7. Snap hole; 8. Fixing assembly; 81. Fixing base; 82. Connecting cylinder; 83. Slide groove; 84. Limiting plate; 85. Movable rod; 86. First return spring; 87. Fixing block; 9. Movable groove; 10. Connecting block; 11. Second return spring; 12. Buffer spring; 13. Guide rod; 14. Magnet; 15. Through hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0028] Please see Figure 1-5 This utility model provides a technical solution: a clamping and positioning mechanism for screw welding, including a sleeve 1 and a screw positioning sleeve 2. The bottom end of the screw positioning sleeve 2 is connected to mounting plates on both sides. A screw body 3 is placed inside the sleeve 1 and the screw positioning sleeve 2. A clamping and positioning component 4 is provided on the top surface of the screw positioning sleeve 2.

[0029] The clamping and positioning assembly 4 includes a fixed plate 41 and multiple clamping plates 42. The fixed plate 41 has a through hole 15 that extends longitudinally through the fixed plate 41 and communicates with the screw positioning sleeve 2. The multiple clamping plates 42 are movably installed on the top surface of the fixed plate 41. When the multiple clamping plates 42 are close together, the through hole 15 is closed. When the multiple clamping plates 42 are dispersed, the through hole 15 is opened. The sleeve 1 is rotatably connected to the fixed plate 41. The sleeve 1 can drive the multiple clamping plates 42 to rotate and clamp the screw body 3.

[0030] In practical use, the sleeve 1 is rotated clockwise. The clockwise rotation of the sleeve 1 causes the multiple fixing plates 41 to change from a close-up state to a dispersed state, thereby opening the through hole 15. Then, the shank of the screw body 3 passes through the through hole 15 on the sleeve 1 and the fixing plate 41 in sequence and enters the screw positioning sleeve 2. The head of the screw body 3 is located outside the sleeve 1. Then, the sleeve 1 is rotated counterclockwise. The counterclockwise rotation of the sleeve 1 causes the multiple fixing plates 41 to change from a dispersed state to a close-up state, thereby causing the multiple clamping plates 42 to abut against the shank of the screw body 3 in multiple directions, completing the clamping and positioning of the screw body 3.

[0031] By rotating the sleeve 1 clockwise or counterclockwise, multiple fixing plates 41 can be quickly dispersed or brought together, thereby quickly allowing the screw body 3 to pass through the through holes 15 on the sleeve 1 and fixing plate 41 in sequence into the screw positioning sleeve 2 and complete the clamping and positioning. This solves the problem in the prior art that uneven distribution of clamping force or inaccurate clamping point position can easily cause the screw body 3 to shift or tilt during the clamping process, thus affecting the subsequent welding accuracy.

[0032] In this embodiment, the clamping and positioning assembly 4 also includes an outer gear ring 43, a plurality of fixing rods 44 and a plurality of pull rods 45. One end of the plurality of fixing rods 44 is connected to the top surface of the fixing plate 41, and the other end extends upward and is connected to a limit ring 46. One end of the plurality of pull rods 45 is movably connected to a plurality of clamping plates 42, and the other end is movably connected to the outer gear ring 43. The plurality of clamping plates 42 are respectively sleeved on the plurality of fixing rods 44.

[0033] An internal gear ring 47 is provided on the inner side of the sleeve 1, and the internal gear ring 47 is engaged with the external gear ring 43.

[0034] In practical use, the sleeve 1 is rotated clockwise or counterclockwise. The sleeve 1 drives the meshing external gear ring 43 to rotate clockwise or counterclockwise through the inner gear ring 47 on the inner side. When the external gear ring 43 rotates clockwise or counterclockwise, it pulls the multiple clamping plates 42 to disperse or move closer together through the pull rod 45, thereby completing the clamping and positioning of the screw body 3.

[0035] In this embodiment: a limiting groove 5 is provided on the top surface of the fixing plate 41, and a limiting block 6 is provided on the bottom surface of the sleeve 1 for bottom surface fixed connection. The limiting block 6 is engaged in the limiting groove 5.

[0036] Both the limiting block 6 and the limiting groove 5 are annular, which allows the sleeve 1 and the internal gear ring 47 to rotate smoothly on the fixed plate 41.

[0037] In this embodiment: a plurality of locking holes 7 are provided on the outer side of the fixing plate 41, and a fixing component 8 is provided on the outer side of the sleeve 1, which engages with the locking holes 7.

[0038] In practical use, after multiple clamping plates 42 clamp and position the screw body 3, the fixing component 8 can engage with the locking hole 7 to prevent the sleeve 1 from rotating on the fixing plate 41 during the welding process of the screw body 3, thereby preventing the screw body 3 from loosening and reducing the welding accuracy.

[0039] In this embodiment: the fixing component 8 includes a fixing base 81 and a connecting cylinder 82. A sliding groove 83 is provided on one side of the fixing base 81. The sliding groove 83 extends along the upper side and lower side of the fixing base 81. The connecting cylinder 82 is slidably fitted in the sliding groove 83. A limiting plate 84 is slidably fitted in the connecting cylinder 82. A movable rod 85 is connected to one side of the limiting plate 84. The end of the movable rod 85 away from the limiting plate 84 passes through the bottom end of the connecting cylinder 82. A first return spring 86 is connected to the other side of the limiting plate 84. A fixing block 87 is connected to the end of the first return spring 86 away from the limiting plate 84. When the first return spring 86 is freely extended, the fixing block 87 abuts against the opening of the connecting cylinder 82.

[0040] In this technical solution, the lower end of the slide groove 83 is provided with a connecting hole corresponding to the locking hole 7, and the movable rod 85 is slidably fitted in the connecting hole.

[0041] In practical use, after multiple clamping plates 42 clamp and fix the screw body 3, the connecting cylinder 82 is slid to the lower end of the slide groove 83, and the movable rod 85 corresponds to the connecting hole and the locking hole 7. The movable rod 85 passes through the connecting hole and enters the locking hole 7, so that the sleeve 1 is fixed on the fixing plate 41 to prevent the sleeve 1 from loosening. When it is necessary to rotate the sleeve 1, the fixing block 87 is pulled, the fixing block 87 pulls the first return spring 86, the first return spring 86 pulls the limiting plate 84 to slide on the inner wall of the connecting cylinder 82, so that the movable rod 85 moves out from the locking hole 7 and enters the interior of the connecting cylinder 82.

[0042] In this embodiment: movable grooves 9 are provided on both sides of the inner wall of the slide groove 83. Connecting blocks 10 are provided on both sides of the movable grooves 9. The two connecting blocks 10 are slidably engaged in the two movable grooves 9 respectively. A second return spring 11 is provided in the movable groove 9. The two ends of the second return spring 11 are connected to the top wall of the movable groove 9 and the top surface of the connecting block 10 respectively.

[0043] In this technical solution, when the second return spring 11 is in a freely extended state, the connecting cylinder 82 is located at the middle end of the slide groove 83.

[0044] In practical use, after pulling the fixing block 87 to move the movable rod 85 out of the card hole 7 and into the interior of the connecting cylinder 82, the second reset spring 11 changes from the stretched state to the free extended state. At the same time, the connecting tubes on both sides of the connecting cylinder 82 slide in the two connecting grooves respectively, which allows the connecting cylinder 82 to move from the lower end of the slide groove 83 to the middle end of the slide groove 83, making it convenient for the user to rotate the sleeve 1.

[0045] In this embodiment: A buffer spring 12 is provided on the inner bottom wall of the screw positioning sleeve 2. One end of the buffer spring 12 is connected to the inner bottom wall of the screw positioning sleeve 2, and the other end extends upward and is connected to a magnet 14. A guide rod 13 is provided inside the buffer spring 12. The guide rod 13 is a telescopic structure. The upper and lower ends of the guide rod 13 are respectively connected to the bottom surface of the magnet 14 and the inner bottom wall of the screw positioning sleeve 2.

[0046] In practical use, when the bottom end of the shank of the screw body 3 enters the screw positioning sleeve 2, it attracts the top surface of the magnet 14. Then, the user can choose whether to press the screw body 3 according to the welding needs. When the screw body 3 is pressed, the buffer spring 12 and the guide rod 13 change from a freely extended state to a retracted state, which makes it easy to select the length of the shank of the screw body 3 entering the screw positioning sleeve 2, so as to clamp and position the screw body 3 according to the welding needs.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping and positioning mechanism for screw welding, characterized in that: It includes a sleeve (1) and a screw positioning sleeve (2), a screw body (3) is placed inside the sleeve (1) and the screw positioning sleeve (2), a clamping positioning component (4) is provided on the top surface of the screw positioning sleeve (2), and the sleeve (1) and the clamping positioning component (4) are rotatably connected. The clamping and positioning assembly (4) includes a fixed plate (41) and multiple clamping plates (42). The fixed plate (41) has a through hole (15) that extends longitudinally through the fixed plate (41) and communicates with the screw positioning sleeve (2). The multiple clamping plates (42) are movably mounted on the top surface of the fixed plate (41). The sleeve (1) can drive the multiple clamping plates (42) to rotate and clamp the screw body (3).

2. The clamping and positioning mechanism for screw welding according to claim 1, characterized in that: The clamping and positioning assembly (4) further includes an external gear ring (43), a plurality of fixed rods (44) and a plurality of pull rods (45). One end of the plurality of fixed rods (44) is connected to the top surface of the fixed plate (41), and the other end extends upward and is connected to a limit ring (46). One end of the plurality of pull rods (45) is movably connected to a plurality of clamping plates (42), and the other end is movably connected to the external gear ring (43). The plurality of clamping plates (42) are respectively sleeved on the plurality of fixed rods (44). An internal gear ring (47) is provided on the inner side of the sleeve (1), and the internal gear ring (47) is engaged with the external gear ring (43).

3. The clamping and positioning mechanism for screw welding according to claim 2, characterized in that: The top surface of the fixed plate (41) is provided with a limiting groove (5), and the bottom surface of the sleeve (1) is provided with a bottom surface fixed connection limiting block (6), which is engaged in the limiting groove (5).

4. The clamping and positioning mechanism for screw welding according to claim 1, characterized in that: The fixing plate (41) has several locking holes (7) on its outer side, and the sleeve (1) has a fixing component (8) on its outer side, which engages with the locking holes (7).

5. The clamping and positioning mechanism for screw welding according to claim 4, characterized in that: The fixing component (8) includes a fixing seat (81) and a connecting cylinder (82). A sliding groove (83) is provided on one side of the fixing seat (81). The sliding groove (83) extends along the upper side and lower side of the fixing seat (81). The connecting cylinder (82) is slidably fitted in the sliding groove (83). A limiting plate (84) is slidably fitted in the connecting cylinder (82). A movable rod (85) is connected to one side of the limiting plate (84). The end of the movable rod (85) away from the limiting plate (84) passes through the bottom end of the connecting cylinder (82). A first return spring (86) is connected to the other side of the limiting plate (84). A fixing block (87) is connected to the end of the first return spring (86) away from the limiting plate (84). When the first return spring (86) is freely extended, the fixing block (87) abuts against the opening of the connecting cylinder (82).

6. The clamping and positioning mechanism for screw welding according to claim 5, characterized in that: The inner wall of the slide groove (83) is provided with movable grooves (9) on both sides. The movable grooves (9) are provided with connecting blocks (10) on both sides. The two connecting blocks (10) are slidably fitted in the two movable grooves (9). A second return spring (11) is provided in the movable groove (9). The two ends of the second return spring (11) are connected to the top wall of the movable groove (9) and the top surface of the connecting block (10) respectively.

7. The clamping and positioning mechanism for screw welding according to claim 1, characterized in that: A buffer spring (12) is provided on the inner bottom wall of the screw positioning sleeve (2). One end of the buffer spring (12) is connected to the inner bottom wall of the screw positioning sleeve (2), and the other end extends upward and is connected to a magnet (14). A guide rod (13) is provided inside the buffer spring (12). The guide rod (13) is a telescopic structure. The upper and lower ends of the guide rod (13) are respectively connected to the bottom surface of the magnet (14) and the inner bottom wall of the screw positioning sleeve (2).

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