A clamp for screwing

Abstract

The application relates to a clamp for screw assembly, which comprises a mounting support, a fixed jaw arranged on the mounting support, and a movable jaw arranged on the fixed jaw; the fixed jaw is provided with a fixed clamping plate, and the movable jaw is provided with a movable clamping plate which is opposite to the fixed clamping plate and cooperates with the fixed clamping plate to clamp a workpiece; the fixed jaw is provided with a horizontally-arranged adjusting screw rod, the fixed jaw is provided with an arranged counterbore for arranging one end of the adjusting screw rod, and the movable jaw is provided with an arranged through hole for arranging the other end of the adjusting screw rod; the movable jaw is provided with an arranged slot which is communicated with the arranged through hole, a half nut which is threadedly matched with the adjusting screw rod is arranged in the arranged slot, and a control mechanism for controlling the opening and closing of the half nut is arranged in the arranged slot. The application has the effect of improving the problem that it is difficult to assemble the screw rod and the nut after the screw rod is plated.

Description

Technical Field

[0001] This application relates to the field of mechanical assembly, and in particular to a clamp for thread assembly. Background Technology

[0002] Threaded connections are a common and important type of connection, offering significant convenience for equipment assembly and maintenance due to their reliable connection and ease of disassembly. In related technologies, the screw thread is typically installed into a suitable nut using manual assembly. To improve the screw's durability and corrosion resistance, a surface coating process is usually used to form a dense metallic protective layer on the screw surface. Regarding the aforementioned technologies, the inventors believe that after the screw is coated, the thickness of the thread surface increases, making direct threaded assembly with the nut difficult. Utility Model Content

[0003] To address the problem of difficulty in assembling screws with nuts due to increased thickness after plating, this application provides a screw assembly fixture.

[0004] The thread assembly fixture provided in this application adopts the following technical solution: A threaded assembly clamp includes a mounting bracket, a fixed clamp body disposed on the mounting bracket, and a movable clamp body slidably disposed on the fixed clamp body; the fixed clamp body has a fixed clamping plate, and the movable clamp body has a movable clamping plate facing the fixed clamping plate and cooperating with the fixed clamping plate to clamp the workpiece; the fixed clamp body has a horizontally arranged adjusting screw, the fixed clamp body has an arrangement countersunk hole for arranging one end of the adjusting screw, and the movable clamp body has an arrangement through hole for arranging the other end of the adjusting screw; the movable clamp body has an arrangement groove communicating with the arrangement through hole, and a half nut threadedly engaged with the adjusting screw and a control mechanism for controlling the opening and closing of the half nut are disposed in the arrangement groove.

[0005] By adopting the above technical solution, when using a thread assembly fixture to install the plated screw onto the nut, the operator first fixes the mounting bracket on the workbench to keep the fixed clamp body fixed. The operator then operates the control mechanism to separate the half-nut from the adjusting screw, quickly sliding the movable clamp body away from the fixed clamp body. After the movable clamp plate separates from the fixed clamp plate, the nut is placed on the end face of the fixed clamp plate with its internal thread vertical. The movable clamp body is then quickly slid towards the fixed clamp body to make the movable clamp plate fit snugly against the nut. The operator operates the control mechanism again to engage the half-nut with the adjusting screw, rotating the adjusting screw to slowly move the movable clamp body until the movable clamp plate engages with the fixed clamp plate, clamping the nut. This allows for the assembly of the screw and nut, improving the problem of difficulty in assembling the screw with the nut due to the increased thickness after plating.

[0006] Optionally, the control mechanism includes a sliding block and a drive assembly for driving the sliding block to slide along an axis perpendicular to the adjusting screw; the movable clamp has a linear groove arranged along an axis perpendicular to the adjusting screw and used for the sliding block to slide.

[0007] By adopting the above technical solution, the sliding block is driven by the drive component to slide in the linear slide groove in a direction perpendicular to the axis of the adjusting screw, which can flexibly control the opening and closing of the half nut, thereby realizing convenient adjustment of the position of the movable clamp body, which helps to improve the efficiency of workpiece clamping and loosening operations.

[0008] Optionally, the drive assembly includes a rotating cam with one end abutting against the sliding block on the side away from the half nut, a first rotating rod with one end arranged on the rotating cam and arranged in a direction parallel to the axis of the adjusting screw, and a first knob arranged at the other end of the first rotating rod.

[0009] By adopting the above technical solution, a drive assembly consisting of a rotary cam, a first rotary rod, and a first knob is used. Rotating the first knob drives the rotary cam to rotate, which facilitates the sliding block to slide along the length of the linear slide groove, thereby controlling the opening and closing of the half nut. This enables the rapid connection and separation of the movable clamp and the adjusting screw, thus achieving rapid and precise adjustment of the spacing between the movable clamp and the fixed clamp, which helps to improve the operational efficiency of thread assembly. The support spring can drive the rotary cam to reset, thereby separating the half nut from the adjusting screw.

[0010] Optionally, the drive assembly includes an eccentric wheel that drives the sliding block to slide along the length direction of the straight groove point, a second rotating rod with one end arranged on the eccentric wheel and arranged in a direction parallel to the axis of the adjusting screw, and a second knob arranged at the other end of the second rotating rod; the eccentric wheel has a transmission rod arranged in a direction parallel to the axis of the second rotating rod at one end facing the sliding block, and the sliding block has a transmission groove for the end of the transmission rod to be arranged.

[0011] By adopting the above technical solution, a drive assembly consisting of an eccentric wheel, a second rotating rod, and a second knob is used. By rotating the second knob, the eccentric wheel is driven to rotate along the axial direction. The transmission rod located on the other end face of the eccentric wheel slides in the transmission groove, which facilitates the sliding block to slide along the length of the straight slide groove, thereby controlling the opening and closing of the half nut. This enables the quick connection and separation of the movable clamp body and the adjusting screw, thereby achieving rapid and precise adjustment of the spacing between the movable clamp and the fixed clamp, which helps to improve the operational efficiency of thread assembly.

[0012] Optionally, the sliding block has an abutment arc surface on the side near the half nut for arranging the half nut.

[0013] By adopting the above technical solution, the setting of the abutting arc surface provides space for the half nut, so that the half nut can be stably arranged at the end of the sliding block, which helps the half nut to have threaded engagement with the adjusting screw, and ensures the stability and accuracy of the position adjustment of the movable clamp body.

[0014] Optionally, the adjusting screw is provided with a first rotating head at the outer end of the movable clamp for driving the adjusting screw to rotate; the first rotating head includes a first abutting part and a first driving rod slidably arranged in the first abutting part; the first abutting part has a first driving hole through the inner and outer surfaces and for allowing the first driving rod to slide along the axial direction perpendicular to the first abutting part; the two ends of the first driving rod have first limiting protrusions for restricting the first driving rod from disengaging from the first driving hole.

[0015] By adopting the above technical solution, a first rotating head is set at the outer end of the adjusting screw. The first abutment part is rotated by adjusting the first driving rod, thereby driving the adjusting screw to rotate and moving the movable clamp body. This facilitates the adjustment of the position of the movable clamp body to achieve the clamping or releasing operation of the workpiece, which helps to improve the workpiece clamping efficiency. The first abutment part and the first driving rod that can slide in its first driving hole cooperate, and the first limiting protrusions at both ends of the first driving rod effectively limit it, which facilitates the adjustment of the position of the first driving rod to rotate the first rotating head more conveniently and effortlessly, and reduces the risk of interference between the first driving rod and the control mechanism when adjusting the mounting bracket.

[0016] Optionally, the movable clamp body has a guide post arranged horizontally and extending toward the side facing the fixed clamp body, and the fixed clamp body has a guide slot arranged parallel to the moving direction of the movable clamp for sliding engagement with the guide post.

[0017] By adopting the above technical solution, the cooperation between the guide post and the guide slot helps to improve the stability of the movable clamp body during movement, reduce the risk of shaking and displacement, and thus ensure that the movable clamping plate and the fixed clamping plate can accurately clamp the workpiece.

[0018] Optionally, the mounting bracket includes a locking base plate, a connecting side plate connected to the end of the locking base plate and extending upward, and a mounting top plate connected to the upper edge of the connecting side plate and arranged along the length direction parallel to the locking base plate; the locking base plate has a locking screw hole and a locking element is provided in the locking screw hole; the locking element includes a vertically arranged locking screw, a second rotating head connected to the lower end of the locking screw, and an abutment block connected to the upper end of the locking screw.

[0019] By adopting the above technical solution, a mounting bracket is formed by a locking base plate, a connecting side plate, and a mounting top plate, which can provide a stable support structure. A locking element is set in the locking screw hole of the locking base plate. By rotating the second rotating head, the locking screw drives the abutment block to move up and down, which can securely lock the fixture on the worktable. This helps to reduce the risk of the fixture shifting during use and improves operational stability and efficiency.

[0020] Optionally, the surface of the fixed clamping plate is provided with a first elastic damping layer, and the surface of the movable clamping plate is provided with a second elastic damping layer.

[0021] By adopting the above technical solution, an elastic first damping layer and a second damping layer are respectively provided on the surfaces of the fixed clamping plate and the movable clamping plate, which helps to increase the friction between the fixed clamping plate and the movable clamping plate and the workpiece surface, thereby helping to better clamp the workpiece and reduce damage to the workpiece surface.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. A thread assembly fixture, comprising a mounting bracket, a fixed clamp body, and a movable clamp body; when using the thread assembly fixture to install a plated screw onto a nut, the operator first fixes the mounting bracket on the workbench to keep the fixed clamp body fixed, operates the control mechanism to separate the half nut from the adjusting screw, quickly slides the movable clamp body away from the fixed clamp body, separates the movable clamp plate from the fixed clamp plate, places the nut on the end face of the fixed clamp plate with the internal thread of the nut vertical, then quickly slides the movable clamp body towards the fixed clamp body to make the movable clamp plate fit against the nut, operates the control mechanism again to make the half nut engage with the adjusting screw, rotates the adjusting screw to slowly move the movable clamp body until the movable clamp plate engages with the fixed clamp plate to clamp the nut, thus enabling the screw and nut to be assembled, improving the problem of difficulty in assembling the screw with the nut due to the increased thickness after plating; 2. The drive assembly consisting of a rotary cam, a first rotary rod, and a first knob drives the rotary cam to rotate by rotating the first knob. This facilitates the sliding block to slide along the length of the linear slide groove, thereby controlling the opening and closing of the half nut. This enables the quick connection and separation of the movable clamp body and the adjusting screw, thereby achieving rapid and precise adjustment of the spacing between the movable clamp and the fixed clamp, which helps to improve the operational efficiency of thread assembly. 3. The drive assembly, consisting of an eccentric wheel, a second rotating rod, and a second knob, drives the eccentric wheel to rotate along the axial direction by rotating the second knob. The transmission rod located on the other end face of the eccentric wheel slides in the transmission groove, which facilitates the sliding block to slide along the length of the straight slide groove, thereby controlling the opening and closing of the half nut. This enables the quick connection and separation of the movable clamp body and the adjusting screw, thereby achieving rapid and precise adjustment of the spacing between the movable clamp and the fixed clamp, which helps to improve the operational efficiency of thread assembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the screw assembly fixture in Example 1.

[0024] Figure 2 This is a cross-sectional view of the thread assembly fixture in Example 1 along the axial direction of the guide post.

[0025] Figure 3 This is a cross-sectional view of the thread assembly fixture in Example 1 along the axis of the adjusting screw.

[0026] Figure 4 This is a schematic diagram of the cooperation between the control mechanism and the half nut in Example 1.

[0027] Figure 5 This is a cross-sectional schematic diagram of the sliding block being slidably arranged on the sliding seat in Example 1.

[0028] Figure 6 This is a schematic diagram of the cooperation between the control mechanism and the half nut in Example 2.

[0029] Explanation of reference numerals in the attached drawings: 1. Mounting bracket; 11. Locking base plate; 111. Locking screw hole; 12. Connecting side plate; 13. Mounting top plate; 2. Fixed clamp body; 21. Fixed base; 22. Sliding connecting seat; 221. Countersunk hole; 222. Guide slot; 23. Fixed clamping plate; 231. First damping layer; 24. Adjusting screw; 25. First rotating head; 251. First abutment part; 252. First drive rod; 3. Movable clamp body; 31. Connecting part; 311. Through hole; 312. Slot; 32. Guide post; 33. Movable clamping plate; 331. Second damping layer; 4. Half nut; 5. Control mechanism; 51. Sliding... 511. Moving seat; 512. Straight slide groove; 513. Second limiting hole; 52. Sliding block; 524. Abutting arc surface; 525. Transmission groove; 526. Support spring; 53. Drive assembly; 537. Rotary cam; 5311. First limiting hole; 532. First rotating rod; 533. First knob; 534. Eccentric wheel; 535. Second knob; 536. Second rotating rod; 537. Transmission rod; 54. Limiting post; 6. Locking element; 61. Locking screw; 62. Second rotating head; 621. Second abutting part; 6211. Second driving hole; 622. Second driving rod; 6221. Second limiting protrusion; 63. Abutting block. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0031] Example 1 This application discloses a thread assembly fixture. (Refer to...) Figure 1 and Figure 2 The threaded assembly fixture includes a mounting bracket 1, a fixed clamping body 2 arranged on the mounting bracket 1, and a movable clamping body 3 slidably arranged on the fixed clamping body 2. The mounting bracket 1 includes a locking base plate 11, a connecting side plate 12 connected to one end of the locking base plate 11 and extending upward, and a mounting top plate 13 connected to the upper edge of the connecting side plate 12 and arranged along the length direction parallel to the locking base plate 11.

[0032] Reference Figure 2 and Figure 3 The fixed clamp body 2 includes a fixed base 21 disposed on the mounting top plate 13, a sliding connecting seat 22 disposed on the upper end of the fixed base 21 and extending horizontally, and a fixed clamping plate 23 disposed on the upper end of the sliding connecting seat 22. The sliding connecting seat 22 has a countersunk hole 221 extending through its inner and outer surfaces in the horizontal direction, and an adjusting screw 24 is installed at the countersunk hole 221. The sliding mounting seat has a guide groove 222 extending parallel to the axis of the adjusting screw 24 at the lower end of the countersunk hole 221. The fixed clamping plate 23 has an elastic first damping layer 231 on the side facing the movable clamp body 3.

[0033] Reference Figure 2 and Figure 3 The movable clamp body 3 includes a connecting part 31, a guide post 32 connected to the connecting part 31 and slidably arranged in the guide groove 222, and a movable clamping plate 33 connected to the upper end of the connecting part 31 and facing the fixed clamping plate 23. The movable clamping plate 33 has an elastic second damping layer 331 on the side facing the fixed clamping plate 23. The countersunk hole 221 of the connecting part 31 facing the fixed clamp body 2 has an arrangement through hole 311 that penetrates the inner and outer surfaces for the other end of the adjusting screw 24.

[0034] Reference Figure 3 A first rotating head 25 for driving the adjustment screw 24 to rotate is provided on the side of the arrangement through hole 311 away from the fixed clamp body 2. The first rotating head 25 includes a first abutment part 251 and a first driving rod 252 slidably arranged in the first abutment part 251. The first abutment part 251 has a first driving hole 2511 that penetrates the inner and outer surfaces and is used for the sliding arrangement of the first driving rod 252 in a direction perpendicular to the axis. The two ends of the first driving rod 252 have first limiting protrusions 2521 for preventing the first driving rod 252 from disengaging from the first driving hole 2511. The movable clamp 33 has an arrangement groove 312 that communicates with the arrangement through hole 311 on the side of the arrangement through hole 311 away from the fixed clamp 23. A half nut 4 that is threadedly engaged with the adjustment screw 24 and a control mechanism 5 for controlling the opening and closing of the half nut 4 are provided in the arrangement groove 312.

[0035] Reference Figure 4 and Figure 5 The control mechanism 5 includes a sliding seat 51, a sliding block 52 slidably arranged on the sliding seat 51, and a drive assembly 53 for driving the sliding block 52 to slide along a direction perpendicular to the axis of the adjusting screw 24. The sliding seat 51 has a linear groove 511 arranged along a direction perpendicular to the axis of the adjusting screw 24 for the sliding block 52 to slide. The drive assembly 53 includes a rotary cam 531 with one end abutting against the side of the sliding block 52 away from the half nut 4, a first rotary rod 532 with one end arranged on the rotary cam 531 and arranged along a direction parallel to the axis of the adjusting screw 24, and a first knob 533 arranged at the other end of the first rotary rod 532. The sliding block 52 has an abutting arc surface 521 on the side near the half nut 4 for the half nut 4 to be arranged. In this embodiment, the sliding block 52 has a support spring 523 that abuts against the sliding seat 51. The rotary cam 531 has a first limiting hole 5311 on its side along the axis perpendicular to the first rotating rod 532, and the sliding seat 51 has a second limiting hole 512 on its side along the length direction perpendicular to the straight slide groove 511. By setting limiting pins 54 in the first limiting hole 5311 and the second limiting hole 512, the rotary cam 531 can be locked.

[0036] Reference Figure 2 The locking base plate 11 has a locking screw hole 111 and a locking component 6 is provided in the locking screw hole 111. The locking component 6 includes a vertically arranged locking screw 61, a second rotating head 62 connected to the upper end of the locking screw 61, and an abutment block 63 connected to the lower end of the locking screw 61.

[0037] The implementation principle of a thread assembly fixture in this application embodiment is as follows: When using the thread assembly fixture to install a plated screw onto a nut, the operator first fixes the mounting bracket 1 on the workbench to keep the fixed clamp 2 fixed. The operator operates the control mechanism 5 to separate the half nut 4 from the adjusting screw 24. The operator then quickly slides the movable clamp 3 away from the fixed clamp 2, separating the movable clamp 33 from the fixed clamp 23. The operator then places the nut on the end face of the fixed clamp 23 with the internal thread of the nut vertically aligned. The operator then quickly slides the movable clamp 3 towards the fixed clamp 2, making the movable clamp 33 fit against the nut. The operator operates the control mechanism 5 again to make the half nut 4 engage with the adjusting screw 24. The operator rotates the adjusting screw 24 to slowly move the movable clamp 3 until the movable clamp 33 engages with the fixed clamp 23 to clamp the nut. This allows the screw and nut to be assembled, improving the problem of difficulty in assembling the screw with the nut due to the increased thickness of the plated surface.

[0038] Example 2 Except for the structure of the driving component 53, which differs from that in Embodiment 1, the rest of the structures in this application embodiment are the same as those in Embodiment 1.

[0039] Reference Figure 6 The drive assembly 53 includes an eccentric wheel 534 that drives the sliding block 52 to slide along the length of the linear slide groove 511, a second knob 535 that drives the eccentric wheel 534 to rotate, a second rotating rod 536 connected at one end to the eccentric wheel 534 and arranged in a direction parallel to the axis of the adjusting screw 24, and a second knob 535 arranged at the other end of the second rotating rod 536. The eccentric wheel 534 has a transmission rod 537 arranged in a direction parallel to the axis of the second rotating rod 536 at one end facing the sliding block 52. The sliding block 52 has a transmission groove 522 for the end of the transmission rod 537 to be arranged.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A jig for thread assembly, characterized in that, The device includes a mounting bracket (1), a fixed clamping body (2) arranged on the mounting bracket (1), and a movable clamping body (3) slidably arranged on the fixed clamping body (2); the fixed clamping body (2) has a fixed clamping plate (23), and the movable clamping body (3) has a movable clamping plate (33) facing the fixed clamping plate (23) and cooperating with the fixed clamping plate (23) to clamp the workpiece; the fixed clamping body (2) has a horizontally arranged adjusting screw (24), and the fixed clamping body (2) has a... The movable clamp (3) has a countersunk hole (221) arranged at one end of the adjusting screw (24), and an arrangement through hole (311) arranged at the other end of the adjusting screw (24); the movable clamp (3) has an arrangement groove (312) communicating with the arrangement through hole (311), and a half nut (4) threadedly engaged with the adjusting screw (24) and a control mechanism (5) for controlling the opening and closing of the half nut (4) are provided in the arrangement groove (312).

2. A threaded assembly fixture according to claim 1, characterized in that, The control mechanism (5) includes a sliding block (52) and a drive assembly (53) for driving the sliding block (52) to slide along an axis perpendicular to the adjusting screw (24); the movable clamp (3) has a linear groove (511) arranged along an axis perpendicular to the adjusting screw (24) for the sliding block (52) to slide.

3. A threaded assembly fixture according to claim 2, characterized in that, The drive assembly (53) includes a rotating cam (531) with one end abutting against the sliding block (52) on the side away from the half nut (4), a first rotating rod (532) with one end arranged on the rotating cam (531) and arranged in a direction parallel to the axis of the adjusting screw (24), and a first knob (533) arranged at the other end of the first rotating rod (532).

4. A threaded assembly fixture according to claim 2, characterized in that, The drive assembly (53) includes an eccentric wheel (534) that drives the sliding block (52) to slide along the length direction of the linear slide groove (511), a second rotating rod (536) with one end arranged on the eccentric wheel (534) and arranged in a direction parallel to the axis of the adjusting screw (24), and a second knob (535) arranged at the other end of the second rotating rod (536); the eccentric wheel (534) has a transmission rod (537) arranged in a direction parallel to the axis of the second rotating rod (536) at one end facing the sliding block (52), and the sliding block (52) has a transmission groove (522) for the end of the transmission rod (537) to be arranged.

5. A threaded assembly fixture according to claim 2, characterized in that, The sliding block (52) has an abutting arc surface (521) on the side near the half nut (4) for the half nut (4) to be arranged.

6. A threaded assembly fixture according to claim 1, characterized in that, The adjusting screw (24) is provided with a first rotating head (25) at the outer end of the movable clamp (3) for driving the adjusting screw (24) to rotate; the first rotating head (25) includes a first abutting part (251) and a first driving rod (252) slidably arranged in the first abutting part (251); the first abutting part (251) is provided with a first driving hole through the inner and outer surfaces and for the first driving rod (252) to slide along the direction perpendicular to the axis of the first abutting part (251); the two ends of the first driving rod (252) have first limiting protrusions for restricting the first driving rod (252) from disengaging from the first driving hole.

7. A threaded assembly fixture according to claim 1, characterized in that, The movable clamp (3) has a guide post (32) arranged horizontally and extending toward the side facing the fixed clamp (2), and the fixed clamp (2) has a guide slot (222) arranged parallel to the moving direction of the movable clamp (33) for sliding engagement of the guide post (32).

8. A threaded assembly fixture according to claim 1, characterized in that, The mounting bracket (1) includes a locking base plate (11), a connecting side plate (12) connected to the end of the locking base plate (11) and extending upward, and a mounting top plate (13) connected to the upper edge of the connecting side plate (12) and arranged along the length direction parallel to the locking base plate (11); the locking base plate (11) has a locking screw hole (111) and a locking member (6) is provided in the locking screw hole (111); the locking member (6) includes a vertically arranged locking screw (61), a second rotating head (62) connected to the lower end of the locking screw (61), and an abutment block (63) connected to the upper end of the locking screw (61).

9. A threaded assembly fixture according to claim 1, characterized in that, The fixed clamp (23) has a first elastic damping layer (231) on its surface, and the movable clamp (33) has a second elastic damping layer (331) on its surface.

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