Pressing structure of thread sleeve screwing-in device

Abstract

The utility model discloses a pressing structure of a thread sleeve screwing-in device, which relates to the field of automobile part processing, and is characterized by comprising a movable seat, the movable seat is connected with an external driving device, a support plate is arranged on one side of the movable seat, a rotating motor is arranged on the top of the support plate, a transmission shaft is arranged at the bottom of the support plate, and the transmission shaft is connected with the rotating motor. The utility model aims to solve the problems that when a light thread sleeve with short external threads (generally less than or equal to 3 circles) is screwed in, a screwing-in head needs to be reversely rotated to be separated from the interior of the thread sleeve after being mounted, but the contact area of the external threads of the thread sleeve and a hole site of an automobile part is limited; the technical problems that circumferential shearing force generated by reverse torque transmission of a screwing-in head can exceed static friction force between an outer thread of a thread sleeve and a base body, the thread sleeve can synchronously and reversely move along with the screwing-in head, if light, the thread sleeve is axially loosened, pretightening force is reduced, if serious, the thread sleeve is even completely separated from a hole site of an automobile part, and machining is inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing, and in particular to a clamping structure for a screw sleeve screwing device. Background Technology

[0002] In the field of lightweight automotive manufacturing, the widespread use of low-density materials such as aluminum alloys has placed higher demands on the reliability of threaded connections. As a typical enhanced connection technology, the thread insert process can effectively improve the load-bearing strength of the threaded holes in automotive parts by screwing in high-strength alloy thread inserts into the holes.

[0003] During typical thread insert machining, the screw-in head of the screw-in device is screwed into the interior of the thread insert, so that the internal thread of the thread insert mates with the external thread of the screw-in head. The thread insert is mounted under the screw-in head. When the screw-in device reaches the hole of the automotive part, it screws the thread insert of the screw-in head into the hole of the automotive part, so that the external thread of the thread insert mates with the internal thread of the hole of the automotive part. When screwing in a light thread insert with a short external thread (usually ≤3 turns), the screw-in head needs to be rotated in the opposite direction to disengage from the interior of the thread insert after installation. However, because the contact area between the external thread of the thread insert and the hole of the automotive part is limited, the circumferential shear force generated by the reverse torque transmission of the screw-in head will exceed the static friction between the external thread of the thread insert and the base material, causing the thread insert to move in the opposite direction synchronously with the screw-in head. This can cause the thread insert to loosen axially and reduce the preload, or even cause the thread insert to completely disengage from the hole of the automotive part, resulting in machining inconvenience. Utility Model Content

[0004] To solve the aforementioned technical problems, this utility model provides a clamping structure for a screw insert screwing device. The purpose is to address the issue that when screwing in lightweight screw inserts with short external threads (typically ≤3 turns), the screwing head needs to rotate in the opposite direction to disengage from the screw insert after installation. However, due to the limited contact area between the external thread of the screw insert and the hole in the automotive part, the circumferential shear force generated by the reverse torque transmission of the screwing head exceeds the static friction between the external thread of the screw insert and the base material. This causes the screw insert to shift in the opposite direction synchronously with the screwing head. This can result in axial loosening of the screw insert, reducing the preload, or even complete detachment of the screw insert from the hole in the automotive part, causing inconvenience in processing.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A clamping structure for a screw thread insertion device includes a movable seat connected to an external driving device. A support plate is provided on one side of the movable seat. A rotary motor is located at the top of the support plate, and a drive shaft is located at the bottom of the support plate. The rotary motor drives the drive shaft to rotate. A screw-in head is located at the bottom of the drive shaft, and a connecting seat is located at the bottom of the drive shaft. A sliding cavity is formed at the bottom of the connecting seat, and a movable rod is located inside the sliding cavity. One end of the movable rod is slidably connected to the sliding cavity, and the screw-in head is located at the other end of the movable rod. A stabilizing frame is slidably connected to one side of the movable seat, and the movable rod is rotatably connected to one side of the stabilizing frame. A clamping transmission seat is located on one side of the stabilizing frame, and a clamping spring is located at the top of the clamping transmission seat, with one end of the clamping spring located on one side of the movable seat.

[0007] When the screw-in head needs to be screwed into the hole of the automotive part, the screw-in head engages with the internal thread of the screw sleeve through external thread engagement, completing the initial loading of the screw sleeve. The external drive device drives the movable seat to move downwards as a whole, and the support plate, drive shaft, and screw-in head simultaneously descend to the pre-installed position of the screw sleeve. The rotary motor drives the drive shaft to rotate the screw-in head forward, and when the external drive device drives the screw sleeve downwards into the hole of the automotive part, the movable rod slides completely into the sliding cavity, and the compression spring is in a contracted state under the limit of the screw-in head. When the external thread of the screw sleeve is completely screwed into the hole of the automotive part... After the part is positioned, the rotary motor switches to reverse rotation mode. At this time, the screw-in head begins to rotate in the opposite direction to disengage from the internal thread of the sleeve, while the compression spring extends. This allows the elastic potential energy of the compression spring to be converted into a constant axial clamping force through the stabilizer. When the screw-in head is screwed out, it can clamp the sleeve with the elastic force of the compression spring. The static friction generated by this clamping force and the circumferential shear force formed by the reverse torque of the screw-in head form a dynamic counterforce, so that when the screw-in head is screwed out, the sleeve remains in the hole of the automotive part, preventing the sleeve from being taken out when the screw-in head is screwed out.

[0008] Furthermore, in this application, the movable rod has limit guide grooves on both sides, and the sliding cavity has limit guide blocks on both sides. The limit guide blocks on both sides of the sliding cavity slide in cooperation with the limit guide grooves on both sides of the movable rod.

[0009] When the rotary motor drives the connecting seat to rotate via the drive shaft, the limiting guide blocks on both sides of the bottom sliding cavity and the limiting guide grooves on both sides of the movable rod form a tangential contact surface. The limiting guide blocks are embedded in the side walls of the limiting guide grooves and make direct contact in the direction of rotation. The rotational torque of the connecting seat is transmitted to the movable rod through the lateral friction between the limiting guide blocks and the limiting guide grooves, which ultimately drives the screw head to rotate synchronously. This allows the movable rod to rotate via the connecting seat even when it can slide vertically, facilitating the installation of the threaded sleeve.

[0010] Furthermore, in this application, one side of the stabilizer is provided with an extension seat, the interior of the extension seat is provided with a connecting groove, the interior of the connecting groove is provided with a stabilizing bearing, and the other end of the movable rod passes through the inner ring of the stabilizing bearing, so that the other end of the stabilizer rod is rotatably connected to the inner ring of the stabilizing bearing.

[0011] When the movable rod rotates with the drive shaft, the inner ring of the stabilizing bearing rotates synchronously with the movable rod. This design completely isolates the rotational motion of the movable rod from the fixed support of the stabilizing frame, while enhancing the stability of the movable rod during rotation, preventing axial deviation from being detected when the movable rod rotates, and ensuring the accuracy of the screw-in head.

[0012] Furthermore, in this application, a guide slider is provided on the other side of the stabilizer, and a guide rail is provided on one side of the movable seat, with the guide rail slidingly engaging with the guide slider.

[0013] Furthermore, in this application, the other end of the stabilizer bar is provided with a connecting shaft, one end of the connecting shaft is provided with a limiting seat, one end of the limiting seat is provided with a limiting slot, the limiting slot is hexagonal in shape, one end of the screw-in head is provided with a connecting post, the connecting post is matched with the shape of the limiting slot, so that the connecting post is inserted into the limiting slot.

[0014] Furthermore, in this application, one end of the connecting shaft is provided with an installation groove, the installation groove is connected to the limiting slot, one side of the connecting shaft is provided with a first fixing hole connected to the installation groove, one end of the connecting pin is provided with a connecting rod, one end of the connecting rod is provided with a fixing block, one side of the fixing block is provided with a second fixing hole, the fixing block and the connecting rod pass through the limiting slot, so that the fixing block and the connecting rod are inserted into the installation groove, and the first fixing hole corresponds to the second fixing hole.

[0015] Furthermore, in this application, a sliding rod is provided on one side of the movable seat, and a sliding groove is provided inside the pressing transmission seat. One end of the sliding rod is slidably engaged with the sliding groove, and a blocking plate is provided at the other end of the sliding rod. The size of the blocking plate is larger than the size of the sliding rod. The pressing spring passes through the outside of the sliding rod and is located between the blocking plate and the pressing transmission seat. One end of the pressing spring abuts against the blocking plate, and the other end of the pressing spring abuts against the transmission seat.

[0016] Furthermore, in this application, a setting seat is provided on one side of the movable seat, and an adjusting cylinder is provided on one side of the setting seat. The piston rod end of the adjusting cylinder passes through the other side of the setting seat, so that the piston rod of the adjusting cylinder is connected to the blocking plate.

[0017] Furthermore, in this application, one end of the sliding rod is provided with a limiting base plate, the size of which is larger than the size of the sliding groove, and the limiting base plate is located below the pressing transmission seat.

[0018] Furthermore, in this application, the bottom of the support plate is provided with a reinforcing frame, one side of which is connected to the movable seat, and the reinforcing frame is triangular in shape.

[0019] This utility model has the following beneficial effects:

[0020] When the screw-in head needs to be screwed into the hole of the automotive part, the screw-in head engages with the internal thread of the screw sleeve through external thread engagement, completing the initial loading of the screw sleeve. The external drive device drives the movable seat to move downwards as a whole, and the support plate, drive shaft, and screw-in head simultaneously descend to the pre-installed position of the screw sleeve. The rotary motor drives the drive shaft to rotate the screw-in head forward, and when the external drive device drives the screw sleeve downwards into the hole of the automotive part, the movable rod slides completely into the sliding cavity, and the compression spring is in a contracted state under the limit of the screw-in head. When the external thread of the screw sleeve is completely screwed into the hole of the automotive part... After the part is positioned, the rotary motor switches to reverse rotation mode. At this time, the screw-in head begins to rotate in the opposite direction to disengage from the internal thread of the sleeve, while the compression spring extends. This allows the elastic potential energy of the compression spring to be converted into a constant axial clamping force through the stabilizer. When the screw-in head is screwed out, it can clamp the sleeve with the elastic force of the compression spring. The static friction generated by this clamping force and the circumferential shear force formed by the reverse torque of the screw-in head form a dynamic counterforce, so that when the screw-in head is screwed out, the sleeve remains in the hole of the automotive part, preventing the sleeve from being taken out when the screw-in head is screwed out. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the compression spring of this utility model.

[0023] Figure 3 This is a structural schematic diagram of the stabilizer frame of this utility model.

[0024] Figure 4 This is a structural schematic diagram of the stabilizing bearing of this utility model.

[0025] Figure 5 This is a structural schematic diagram of the connecting shaft of this utility model.

[0026] Figure 6 This is a schematic diagram of the mounting groove of this utility model.

[0027] In the attached figures, the following labels are used:

[0028] 1. Movable seat; 2. Support plate; 3. Rotary motor; 4. Drive shaft; 5. Connecting seat; 6. Movable rod; 7. Sliding cavity; 8. Limiting guide block; 9. Limiting guide groove; 10. Connecting shaft; 11. Mounting groove; 12. Limiting seat; 13. First fixing hole; 14. Limiting slot; 15. Connecting rod; 16. Connecting post; 17. Fixing block; 18. Second fixing hole; 19. Screw-in head; 20. Stabilizing frame; 21. Connecting groove; 22. Stabilizing bearing; 23. Guide slider; 24. Guide slide rail; 25. Pressing transmission seat; 26. Adjusting cylinder; 27. Sliding rod; 28. Sliding groove; 29. ​​Pressing spring; 30. Blocking plate; 31. Limiting base plate; 32. Setting seat; 33. Extension seat; 34. Reinforcing frame. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Reference Figures 1-6 In some specific embodiments, a clamping structure of a screw sleeve screwing device includes a movable seat 1, which is connected to an external driving device. A support plate 2 is provided on one side of the movable seat 1, a rotary motor 3 is provided on the top of the support plate 2, and a transmission shaft 4 is provided on the bottom of the support plate 2. The rotary motor 3 drives the transmission shaft 4 to rotate. A screw-in head 19 is provided on the bottom of the transmission shaft 4, and a connecting seat 5 is provided on the bottom of the connecting seat 5. A sliding cavity 7 is opened on the bottom of the connecting seat 5. A movable rod 6 is provided inside the sliding cavity 7. One end of the movable rod 6 is slidably connected to the sliding cavity 7, and the screw-in head 19 is provided on the other end of the movable rod 6. A stabilizing frame 20 is slidably connected to one side of the movable seat 1, and the movable rod 6 is rotatably connected to one side of the stabilizing frame 20. A clamping transmission seat 25 is provided on one side of the stabilizing frame 20, and a clamping spring 29 is provided on the top of the clamping transmission seat 25. One end of the clamping spring 29 is provided on one side of the movable seat 1.

[0033] With the above technical solution, when the screw-in head 19 needs to be screwed into the hole of the automotive part, the screw-in head 19 completes the initial loading of the screw sleeve through the threaded engagement of the external thread and the internal thread of the screw sleeve. The external drive device drives the movable seat 1 to move down as a whole, and the support plate 2, the drive shaft 4 and the screw-in head 19 simultaneously descend to the pre-installed position of the screw sleeve. The rotary motor 3 drives the drive shaft 4 to rotate the screw-in head 19 in the forward direction, and when the external drive device drives the screw sleeve downward to be screwed into the hole of the automotive part, the movable rod 6 slides completely into the sliding cavity 7, and the compression spring 29 is in a contracted state under the limit of the screw-in head 19. When the external thread of the screw sleeve is completed... After the screw-in head 19 is fully screwed into the hole of the automotive part, the rotary motor 3 switches to the reverse rotation mode. At this time, the screw-in head 19 begins to rotate in the reverse direction to disengage from the internal thread of the sleeve, while the compression spring 29 extends. This allows the elastic potential energy of the compression spring 29 to be converted into a constant axial clamping force through the stabilizer 20. This allows the screw-in head 19 to clamp the sleeve through the elastic force of the compression spring 29 when it is screwed out. The static friction generated by this clamping force and the circumferential shear force formed by the reverse torque of the screw-in head 19 form a dynamic counterforce, so that when the screw-in head 19 is screwed out, the sleeve remains in the hole of the automotive part, preventing the sleeve from being pulled out when the screw-in head 19 is screwed out.

[0034] Furthermore, although the external drive unit will move the movable seat away from the car part after the screw sleeve is screwed into the hole of the car part, causing the screw head 19 to gradually move away from the screw sleeve, the extension of the compression spring 29 allows the stabilizer 20 to briefly keep the screw head 19 against the hole of the car part under the action of the elastic force, thereby preventing the screw head 19 from pulling the screw sleeve out when it is screwed out.

[0035] In addition, when the external drive device drives the screw sleeve downwards into the hole of the automotive part, the compression spring 29 can also continuously apply a clamping force perpendicular to the axial direction of the hole to the screw sleeve during the contraction process, so as to prevent the screw sleeve from radially shifting due to torque fluctuations during the screwing process.

[0036] It should be noted that the screw-in head 19 is usually threaded on the outside, and its thread matches the internal thread of the screw sleeve so that the screw sleeve can be loaded under the screw-in head 19. During the process of loading or installing the screw sleeve, the screw-in head 19 needs to ensure that the movable rod 6 is fully inserted into the sliding cavity 7 so that the sliding cavity 7 limits the vertical movement of the movable rod 6. This allows the external drive device to transmit enough force to the screw-in head 19 to load or install the screw sleeve. If the movable rod 6 is not fully inserted into the sliding cavity 7, the screw-in head 19 will not have enough force to load or install the screw sleeve into the hole.

[0037] Reference Figures 5-6 In some specific embodiments, limit guide grooves 9 are provided on both sides of the movable rod 6, and limit guide blocks 8 are provided on both sides of the sliding cavity 7. The limit guide blocks 8 on both sides of the sliding cavity 7 are slidably engaged with the limit guide grooves 9 on both sides of the movable rod 6.

[0038] With the above technical solution, when the rotary motor drives the connecting seat 5 to rotate through the transmission shaft 4, the limiting guide blocks 8 on both sides of the bottom sliding cavity 7 and the limiting guide grooves 9 on both sides of the movable rod 6 form a tangential contact surface. The limiting guide blocks 8 are embedded in the side wall of the limiting guide grooves 9 and make direct contact in the rotation direction. The rotational torque of the connecting seat 5 is transmitted to the movable rod 6 through the lateral friction force between the limiting guide blocks 8 and the limiting guide grooves 9, and finally drives the screw head 19 to rotate synchronously. This allows the movable rod 6 to be rotated through the connecting seat 5 in a state where it can slide vertically, so as to facilitate the installation of the threaded sleeve.

[0039] Reference Figures 3-4 In some specific embodiments, an extension seat 33 is provided on one side of the stabilizer 20. A connecting groove 21 is provided inside the extension seat 33. A stabilizing bearing 22 is provided inside the connecting groove 21. The other end of the movable rod 6 passes through the inner ring of the stabilizing bearing 22, so that the other end of the stabilizer rod is rotatably connected to the inner ring of the stabilizing bearing 22.

[0040] With the above technical solution, when the movable rod 6 rotates with the transmission shaft 4, the inner ring of the stabilizing bearing 22 rotates synchronously with the movable rod 6. This design completely isolates the rotational motion of the movable rod 6 from the fixed support of the stabilizing frame 20, while enhancing the stability of the movable rod 6 during rotation, preventing axial deviation from being detected when the movable rod 6 rotates, and ensuring the accuracy of the screw-in head 19.

[0041] Reference Figure 3 In some specific embodiments, a guide slider 23 is provided on the other side of the stabilizer 20, and a guide rail 24 is provided on one side of the movable seat 1. The guide rail 24 and the guide slider 23 are slidably engaged.

[0042] Through the above technical solution, when the compression spring 29 pushes the stabilizer 20 to move, the contact surface between the guide slide rail 24 and the guide slider 23 forcibly restricts the movement direction of the stabilizer 20, so that it can only move along the axial direction of the guide slide rail 24 (i.e., the direction perpendicular to the screw hole), thus eliminating the risk of the stabilizer 20 swaying or overturning.

[0043] Reference Figure 5 In some specific embodiments, the other end of the stabilizer bar is provided with a connecting shaft 10, one end of the connecting shaft 10 is provided with a limiting seat 12, one end of the limiting seat 12 is provided with a limiting slot 14, the limiting slot 14 is hexagonal in shape, one end of the screw-in head 19 is provided with a connecting pin 16, the shape of the connecting pin 16 matches the limiting slot 14, so that the connecting pin 16 and the limiting slot 14 are inserted into each other.

[0044] Through the above technical solution, the inner wall of the hexagonal limiting slot 14 and the six planes of the connecting plug 16 form a full circumferential contact surface. When the screw head 19 rotates, the tangential contact of the hexagonal edges will evenly distribute the rotational torque on the six planes. Compared with the traditional keyway or spline structure, its unit area load is reduced by about 70%, avoiding deformation caused by stress concentration.

[0045] Reference Figures 5-6 In some specific embodiments, one end of the connecting shaft 10 is provided with a mounting groove 11, which connects to the limiting slot 14. A first fixing hole 13 connecting to the mounting groove 11 is provided on one side of the connecting shaft 10. One end of the connecting pin 16 is provided with a connecting rod 15, and one end of the connecting rod 15 is provided with a fixing block 17. A second fixing hole 18 is provided on one side of the fixing block 17. The fixing block 17 and the connecting rod 15 pass through the limiting slot 14, so that the fixing block 17 and the connecting rod 15 are inserted into the mounting groove 11. The first fixing hole 13 corresponds to the second fixing hole 18.

[0046] Through the above technical solution, the fixing block 17 of the connecting plug 16 and the connecting rod 15 are axially inserted into the mounting groove 11 along the hexagonal limiting slot 14. The hexagonal cross section automatically corrects the circumferential angle, so that the fixing block 17 of the connecting plug 16 is accurately embedded in the internal space of the mounting groove 11. At this time, the second fixing hole 18 on the side of the fixing block 17 and the first fixing hole 13 on the side of the connecting shaft 10 are automatically coaxially aligned to form a through hole. Thus, the bolt passes through the first fixing hole 13 and is threadedly engaged with the second fixing hole 18, thereby fixing the screw-in head 19. At the same time, it is also convenient to replace the screw-in head 19 when processing threaded sleeves of different specifications.

[0047] Reference Figures 1-2 In some specific embodiments, a sliding rod 27 is provided on one side of the movable seat 1, and a sliding groove 28 is provided inside the pressing transmission seat 25. One end of the sliding rod 27 is slidably engaged with the sliding groove 28, and a blocking plate 30 is provided at the other end of the sliding rod 27. The size of the blocking plate 30 is larger than that of the sliding rod 27. A pressing spring 29 passes through the outside of the sliding rod 27 and is located between the blocking plate 30 and the pressing transmission seat 25. One end of the pressing spring 29 abuts against the blocking plate 30, and the other end of the pressing spring 29 abuts against the transmission seat.

[0048] With the above technical solution, when the movable seat 1 is pushed towards the threaded sleeve, the blocking plate 30 compresses the compression spring 29 along with the sliding rod 27. The elastic potential energy of the compression spring 29 is converted into a continuous clamping force, which is transmitted to the screw head 19 through the stabilizer 20, forcing the threaded sleeve to fit tightly against the end face of the hole of the automotive part. When the screw head 19 disengages from the threaded sleeve, the movable seat 1 moves away from the threaded sleeve. At this time, the compression spring 29 extends and pushes the compression transmission seat 25, so that the compression transmission seat 25 drives the screw head 19 to apply a clamping force to the threaded sleeve while screwing out, thereby preventing the threaded sleeve from being pulled out by the screw head 19.

[0049] Reference Figures 1-2 In some specific embodiments, a mounting seat 32 is provided on one side of the movable seat 1, and an adjusting cylinder 26 is provided on one side of the mounting seat 32. The piston rod end of the adjusting cylinder 26 passes through the other side of the mounting seat 32, so that the piston rod of the adjusting cylinder 26 is connected to the baffle plate 30.

[0050] Reference Figures 1-2 In some specific embodiments, one end of the sliding rod 27 is provided with a limiting base plate 31, the size of the limiting base plate 31 is larger than the size of the sliding groove 28, and the limiting base plate 31 is located below the pressing transmission seat 25.

[0051] With the above technical solution, when the adjusting cylinder 26 is started, the piston rod of the adjusting cylinder 26 drives the blocking plate 30 to move away from the screw head 19. Since the size of the limiting base plate 31 is larger than the size of the sliding groove 28, the limiting base plate 31 will drive the pressing transmission seat 25 to move upward, thereby driving the screw head 19 to move, so that the initial position (height when not working) of the screw head 19 can be adjusted, thereby presetting the docking height between the screw head 19 and the threaded sleeve, ensuring that the installation starting point of different specifications of threaded sleeves is accurately aligned, and eliminating manual alignment errors.

[0052] Reference Figures 1-4 In some specific embodiments, the bottom of the support plate 2 is provided with a reinforcing frame 34, one side of which is connected to the movable seat 1, and the reinforcing frame 34 is triangular in shape.

[0053] Through the above technical solution, the reinforcing frame 34 is arranged in an L-shape or a triangle. One side is vertically connected to the bottom of the support plate 2, and the other side is horizontally fixed to the side of the movable seat 1, forming a spatial truss structure. When the screw-in head 19 applies torque, the torsional force borne by the support plate 2 is converted into the horizontal shear force and vertical pressure of the movable seat 1 through the reinforcing frame 34, and the triangular stability is used to suppress the bending deformation of the support plate 2.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A clamping structure for a screw thread insertion device, comprising a movable seat connected to an external driving device, a support plate on one side of the movable seat, a rotary motor on the top of the support plate, a drive shaft on the bottom of the support plate, the rotary motor driving the drive shaft to rotate, and an insertion head on the bottom of the drive shaft, characterized in that... The bottom of the drive shaft is provided with a connecting seat, and the bottom of the connecting seat is provided with a sliding cavity. A movable rod is provided inside the sliding cavity. One end of the movable rod is slidably connected to the sliding cavity. The screw-in head is provided at the other end of the movable rod. A stabilizing frame is slidably connected to one side of the movable seat. The movable rod is rotatably connected to one side of the stabilizing frame. A pressing drive seat is provided on one side of the stabilizing frame. A pressing spring is provided on the top of the pressing drive seat. One end of the pressing spring is provided on one side of the movable seat.

2. The clamping structure of the screw sleeve screwing device according to claim 1, characterized in that, The movable rod has limit guide grooves on both sides, and the sliding cavity has limit guide blocks on both sides. The limit guide blocks on both sides of the sliding cavity slide in cooperation with the limit guide grooves on both sides of the movable rod.

3. The clamping structure of the screw sleeve screwing device according to claim 1, characterized in that, One side of the stabilizer is provided with an extension seat, and the interior of the extension seat is provided with a connecting groove. The interior of the connecting groove is provided with a stabilizing bearing. The other end of the movable rod passes through the inner ring of the stabilizing bearing, so that the other end of the stabilizer rod is rotatably connected to the inner ring of the stabilizing bearing.

4. The clamping structure of the screw sleeve screwing device according to claim 3, characterized in that, The other side of the stabilizer is provided with a guide slider, and one side of the movable seat is provided with a guide rail, which slides in cooperation with the guide slider.

5. The clamping structure of the screw sleeve screwing device according to claim 1, characterized in that, The other end of the stabilizer bar is provided with a connecting shaft, one end of the connecting shaft is provided with a limiting seat, one end of the limiting seat is provided with a limiting slot, the limiting slot is hexagonal in shape, one end of the screw-in head is provided with a connecting pin, the shape of the connecting pin matches the limiting slot, so that the connecting pin is inserted into the limiting slot.

6. The clamping structure of the screw sleeve screwing device according to claim 5, characterized in that, One end of the connecting shaft is provided with a mounting groove, which communicates with the limiting slot. One side of the connecting shaft is provided with a first fixing hole that communicates with the mounting groove. One end of the connecting pin is provided with a connecting rod, and one end of the connecting rod is provided with a fixing block. One side of the fixing block is provided with a second fixing hole. The fixing block and the connecting rod pass through the limiting slot, so that the fixing block and the connecting rod are inserted into the mounting groove. The first fixing hole corresponds to the second fixing hole.

7. The clamping structure of the screw sleeve screwing device according to claim 1, characterized in that, A sliding rod is provided on one side of the movable seat, and a sliding groove is provided inside the pressing transmission seat. One end of the sliding rod is slidably engaged with the sliding groove, and a blocking plate is provided at the other end of the sliding rod. The size of the blocking plate is larger than that of the sliding rod. The pressing spring passes through the outside of the sliding rod and is located between the blocking plate and the pressing transmission seat. One end of the pressing spring abuts against the blocking plate, and the other end of the pressing spring abuts against the transmission seat.

8. The clamping structure of the screw sleeve screwing device according to claim 7, characterized in that, A setting seat is provided on one side of the movable seat, and an adjusting cylinder is provided on one side of the setting seat. The piston rod end of the adjusting cylinder passes through the other side of the setting seat, so that the piston rod of the adjusting cylinder is connected to the blocking plate.

9. The clamping structure of the screw sleeve screwing device according to claim 8, characterized in that, One end of the sliding rod is provided with a limiting base plate, the size of which is larger than that of the sliding groove, and the limiting base plate is located below the pressing transmission seat.

10. The clamping structure of the screw sleeve screwing device according to claim 1, characterized in that, The bottom of the support plate is provided with a reinforcing frame, one side of which is connected to the movable seat. The reinforcing frame is triangular in shape.

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