Multi-material-number screw locking mechanism

Abstract

The utility model discloses a multi-material-number screw locking mechanism which comprises an automatic screw locking mechanism driven by an electric cylinder sliding table, the automatic screw locking mechanism comprises a positioning rack, a plurality of torque motors, a coupler, a torsion bar, a universal joint, a screw sleeving rod, a transverse adjusting assembly and a longitudinal adjusting assembly, and the transverse adjusting assembly and the longitudinal adjusting assembly drive the screw sleeving rod to adjust. The torque motor is connected with the torsion bar through the coupler and transmits rotating torsion to the torsion bar, the torsion bar is connected with the screw sleeving rod through the universal joint, and the torsion of the torque motor is transmitted to the screw sleeving rod. Automatic positioning of the positions of screwing holes of end covers of different specifications and sizes is achieved, a torque motor drives all torsion bars, synchronous screwing and locking actions of all screws to be screwed can be achieved, internal stress in the screwing process can be removed, the automatic assembly process level can be improved, automobile accessory installation standardization can be improved, and practicability and convenience are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic screw locking equipment, in particular to a multi-material screw locking mechanism. Background Art

[0002] The assembly of auto parts such as engines and reducers is often done by matching the casing with the end cover and then tightening them with screws. In order to ensure the stability of the screwing and locking, the tightening of all the screws on the end cover should theoretically be carried out simultaneously. In the past, manual screwing was done by alternating screwing in symmetrical positions to complete the assembly. Now, electric screw locking machines are widely used in automated processes, but most of them are handheld. In order to improve the level of automatic assembly technology and improve the standardization of auto parts installation, the automatic screw locking machine needs to cooperate with the end covers of engines or reducer boxes with different positions and sizes to achieve synchronous automatic screw locking, so we need to redesign and improve it. Utility Model Content

[0003] Purpose of the utility model: In view of the technical problem in the background technology that the automatic screw locking machine needs to cooperate with the end covers of engines or reducer boxes with different positions and sizes to realize the synchronous automatic screw locking action, we design a multi-material number screw locking mechanism, which can take into account screws of different specifications and models to implement screw tightening and assembly operations on end covers or other workpieces that need to be screwed and locked, and can perform horizontal and vertical bidirectional adjustments according to different screw hole positions. The screw locking process is operated synchronously, which can remove the internal stress of the screw connection process, improve the level of automatic assembly technology, improve the standardization of auto parts installation, and is practical and convenient.

[0004] The technical solutions adopted to solve the above problems are:

[0005] A multi-material screw locking mechanism includes an automatic screw locking mechanism driven by an electric cylinder slide, the automatic screw locking mechanism includes a positioning frame, a plurality of torque motors, a coupling, a torsion bar, a universal joint, a threaded rod, and a lateral adjustment component and a longitudinal adjustment component for driving the threaded rod to adjust.

[0006] The torque motor is connected to the torsion bar through a coupling to transmit the rotational torque to the torsion bar. The torsion bar is connected to the threaded rod through a universal joint to transmit the torque of the torque motor to the threaded rod. The threaded rod that obtains the torque screws the screws on the screw connection holes of the end cover to be assembled. The threaded rod is positioned and adjusted by the lateral adjustment component and the longitudinal adjustment component.

[0007] The lateral adjustment component includes a lateral electric sliding screw pair, a lateral adjustment slider, a lateral sliding sleeve and a lateral slider rail assembly; the longitudinal adjustment component includes a longitudinal electric sliding screw pair, a longitudinal adjustment slider, a longitudinal sliding sleeve and a longitudinal slider rail assembly; the lateral adjustment component and the longitudinal adjustment component are both arranged on a limit plate.

[0008] Furthermore, the screw of the transverse electric sliding screw pair is set as a double-rotation screw, and at least two transverse positioning sliders are arranged on the double-rotation screw, and the double-rotation screw drives at least two transverse positioning sliders to adjust the position, and the transverse positioning slider is driven by the transverse slider rail assembly to realize transverse linear sliding.

[0009] Furthermore, the screw of the longitudinal electric sliding screw pair is arranged as a double-rotation screw, and at least two longitudinal positioning sliders are arranged on the double-rotation screw, and the at least two longitudinal positioning sliders are driven by the rotation of the double-rotation screw to adjust the position, and the longitudinal positioning slider is driven by the longitudinal slider rail assembly to realize longitudinal linear sliding, and the longitudinal positioning slider is also connected to the transverse positioning slider on the same side to realize transverse and longitudinal bidirectional adjustment.

[0010] Furthermore, a transverse sliding sleeve is sleeved on the transverse position adjusting slider, and a longitudinal sliding sleeve is sleeved on the longitudinal position adjusting slider. A threaded rod is sleeved in both the transverse sliding sleeve and the longitudinal sliding sleeve.

[0011] Furthermore, an elastic sleeve is provided between the torsion rod and the universal joint to compensate for the length difference after the torsion rod and the threaded rod are directly misaligned.

[0012] Furthermore, the torque motor is integrally fixedly connected to the positioning frame via a support frame, and is fixedly connected to the limit plate via a guide rod.

[0013] The beneficial effects of the utility model are:

[0014] The multi-material screw locking mechanism uses the lateral adjustment component and the longitudinal adjustment component to position and adjust the threaded rod, thereby realizing automatic positioning of the screw connection holes of end covers of different specifications and sizes. A torque motor drives all torsion bars, so that all screws to be screwed can be screwed and locked synchronously, which can remove internal stress in the screw connection process, improve the level of automatic assembly technology, and improve the standardization of auto parts installation. It is practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a left top view of the multi-part number screw locking mechanism of this embodiment;

[0016] Figure 2 It is a right side top view of the multi-part number screw locking mechanism of this embodiment;

[0017] Figure 3 This is a bottom view of the right side of the multi-part number screw locking mechanism of this embodiment;

[0018] Figure 4 This is a left bottom view of the multi-part number screw locking mechanism of this embodiment;

[0019] Figure 5 for Figure 3A partial enlarged view of the middle A;

[0020] Among them, 1-end cover, 2-screw rod, 3-limiting plate, 4-torsion rod, 5-support frame, 6-torque motor, 7-longitudinal positioning slider, 8-universal joint, 9-elastic sleeve, 10-lateral positioning slider, 11-lateral slider rail assembly, 12-longitudinal double-rotation screw rod, 13-electric cylinder slide, 14-longitudinal electric sliding screw rod pair, 15-horizontal slider rail assembly, 16-positioning frame, 17-lateral double-rotation screw rod, 18-lateral sleeve, 19-longitudinal sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figures 1 to 3 This embodiment proposes a multi-material screw locking mechanism, including an automatic screw locking mechanism driven by an electric cylinder slide 13, the automatic screw locking mechanism includes a positioning frame 16, a plurality of torque motors 6, a coupling, a torsion bar 4, a universal joint 8, a threaded rod 2, and a lateral adjustment component and a longitudinal adjustment component that drive the threaded rod 2 to adjust.

[0023] See also Figure 1 , Figure 3 and Figure 5 The torque motor 6 is connected to the torsion bar 4 through a coupling, and the rotational torque is transmitted to the torsion bar 4. The torsion bar 4 is connected to the threaded rod 2 through a universal joint 8, and the torque of the torque motor 6 is transmitted to the threaded rod 2. The threaded rod 2 that obtains the torque screws the screw on the threaded hole of the end cover 1 to be assembled. The threaded rod 2 is positioned and adjusted by the lateral adjustment component and the longitudinal adjustment component.

[0024] See also Figure 3 and Figure 5 The lateral adjustment component includes a lateral electric sliding screw pair, a lateral positioning slider 10, a lateral sliding sleeve 18 and a lateral slider rail assembly 11, and the longitudinal adjustment component includes a longitudinal electric sliding screw pair 14, a longitudinal positioning slider 7, a longitudinal sliding sleeve 19 and a longitudinal slider rail assembly. The lateral adjustment component and the longitudinal adjustment component are both arranged on the limit plate 3.

[0025] See also Figure 5 The screw of the transverse electric sliding screw pair is set as a double-rotation screw, and at least two transverse positioning sliders 10 are set on the double-rotation screw. The double-rotation screw drives at least two transverse positioning sliders 10 to adjust their positions by rotating. The transverse positioning slider 10 is driven by the transverse slider rail assembly 11 to achieve transverse linear sliding.

[0026] See also Figure 5The screw of the longitudinal electric sliding screw pair 14 is set as a double-rotation screw, and at least two longitudinal adjustment sliders 7 are set on the double-rotation screw, and the double-rotation screw rotates to drive at least two longitudinal adjustment sliders 7 to adjust the position. The longitudinal adjustment slider 7 is driven by the longitudinal slider rail assembly to achieve longitudinal linear sliding. The longitudinal adjustment slider 7 is also connected to the transverse adjustment slider 10 on the same side to achieve transverse and longitudinal bidirectional adjustment.

[0027] See also Figure 5 The transverse positioning slider 10 is sleeved with a transverse sleeve 18, and the longitudinal positioning slider 7 is sleeved with a longitudinal sleeve 19. The transverse sleeve 18 and the longitudinal sleeve 19 are both sleeved with a threaded rod 2.

[0028] See also Figure 3 and Figure 5 An elastic sleeve 9 is also provided between the torsion bar 4 and the universal joint 8 to compensate for the length difference after the torsion bar 4 and the threaded rod 2 are directly misaligned.

[0029] See also Figure 1 and Figure 2 The torque motor 6 is integrally connected to the positioning frame 16 through the support frame 5, and is fixedly connected to the limit plate 3 through the guide rod.

[0030] The above describes in detail the implementation modes of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes. Various changes, modifications, substitutions and variations can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-material screw locking mechanism, including an automatic screw locking mechanism driven by an electric cylinder slide, the automatic screw locking mechanism including a positioning frame, a plurality of torque motors, a coupling, a torsion bar, a universal joint, a threaded rod, and a lateral adjustment component and a longitudinal adjustment component for driving the threaded rod to adjust, characterized in that: The torque motor is connected to the torsion bar through a coupling to transmit the rotational torque to the torsion bar. The torsion bar is connected to the threaded rod through a universal joint to transmit the torque of the torque motor to the threaded rod. The threaded rod that obtains the torque screws the screws on the screw connection holes of the end cover to be assembled. The threaded rod is positioned and adjusted by the lateral adjustment component and the longitudinal adjustment component. The lateral adjustment component includes a lateral electric sliding screw pair, a lateral adjustment slider, a lateral sliding sleeve and a lateral slider rail assembly; the longitudinal adjustment component includes a longitudinal electric sliding screw pair, a longitudinal adjustment slider, a longitudinal sliding sleeve and a longitudinal slider rail assembly; the lateral adjustment component and the longitudinal adjustment component are both arranged on a limit plate.

2. The multi-material screw locking mechanism according to claim 1, characterized in that: The screw of the transverse electric sliding screw pair is set as a double-rotation screw, and at least two transverse positioning sliders are set on the double-rotation screw. The double-rotation screw drives at least two transverse positioning sliders to adjust their positions by rotation. The transverse positioning slider is driven by the transverse slider rail assembly to achieve transverse linear sliding.

3. The multi-material screw locking mechanism according to claim 1, characterized in that: The screw of the longitudinal electric sliding screw pair is set as a double-rotation screw, and at least two longitudinal adjustment sliders are set on the double-rotation screw. The double-rotation screw drives at least two longitudinal adjustment sliders to adjust the position by rotation. The longitudinal adjustment slider is driven by the longitudinal slider rail assembly to achieve longitudinal linear sliding. The longitudinal adjustment slider is also connected to the transverse adjustment slider on the same side to achieve transverse and longitudinal bidirectional adjustment.

4. The multi-material screw locking mechanism according to claim 1, characterized in that: A transverse sliding sleeve is sleeved on the transverse position adjusting sliding block, and a longitudinal sliding sleeve is sleeved on the longitudinal position adjusting sliding block. A threaded rod is sleeved in both the transverse sliding sleeve and the longitudinal sliding sleeve.

5. The multi-material screw locking mechanism according to claim 1, characterized in that: An elastic sleeve is also arranged between the torsion bar and the universal joint.

6. The multi-material screw locking mechanism according to claim 1, characterized in that: The torque motor is integrally connected to the positioning frame through a support frame, and is fixedly connected to the limit plate through a guide rod.

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