Control arm assembly device

Abstract

The present invention relates to a control arm assembly device, comprising a frame, a fixture base plate, a control arm clamping assembly, a bushing press-fitting assembly, and a threaded steel sleeve press-fitting assembly. The fixture base plate is installed at the bottom of the frame, and the control arm clamping assembly is installed on the frame base plate to locate the control arm positioning point and clamp the control arm. The bushing press-fitting assembly comprises a pressure head and a positioning pin, and the positioning pin is installed on the fixture base plate. The pressure head is arranged in the axial direction of the bushing hole to press the bushing; the threaded steel sleeve press-fitting assembly comprises a workbench and a bolt wrench, the workbench is installed on the top of the frame and can slide relative to the frame, and the bolt wrench is installed on the workbench; the present invention can achieve symmetrical positioning of the left and right parts of the control arm through a set of control arm clamping assemblies, and at the same time, a set of press-fitting assemblies can simultaneously meet the press-fitting and screw-connection work of the left and right control arms, realize work station integration, improve space utilization, and have a reasonable structure, advanced technology, and flexible adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of press-fitting and screw-connecting, in particular to a control arm assembly device. Background Art

[0002] The control arm is one of the important parts of a car, connecting other chassis parts such as the steering knuckle and subframe. The control arm is a paired symmetrical product, divided into a left part and a right part. In the production and manufacturing, the compatibility of the equipment needs to be considered, and it must meet the production of both the left and right parts. The equipment structure must be simple, the adjustment must be flexible, and the investment must be small. The control arm requires a press-fit bushing and a threaded steel sleeve. Based on this situation, this patent provides a control arm assembly device that can simultaneously meet the press-fit screw connection work of the left control arm and the right control arm, with a reasonable structure, advanced technology, and flexible adjustment. Summary of the invention

[0003] The purpose of the present invention is to provide a control arm assembly device which can simultaneously meet the press-fitting and screw-joining work of the left control arm and the right control arm, has a reasonable structure, advanced technology and flexible adjustment.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A control arm assembly device comprises a frame, a fixture base plate, a control arm clamping assembly, a bushing press-fitting assembly, and a threaded steel sleeve press-fitting assembly, wherein the fixture base plate is mounted on the bottom of the frame, the control arm clamping assembly is mounted on the frame base plate, and can locate the control arm positioning point and clamp the control arm, the bushing press-fitting assembly comprises a pressing head and a locating pin, the locating pin is mounted on the fixture base plate and is used for locating the bushing hole, and the pressing head is arranged on the axial direction of the bushing hole to press-fit the bushing; the threaded steel sleeve press-fitting assembly comprises a workbench and a bolt wrench, the workbench is mounted on the top of the frame and can slide relative to the frame, and the bolt wrench is mounted on the workbench.

[0006] In some embodiments, the control arm clamping assembly includes a left control arm clamp and a right control arm clamp symmetrically distributed on the clamp base plate, and the control arm clamp includes a positioning support column, a cylindrical pin, a diamond pin, and a pressure claw set on the clamp base plate, and the pressure claw is set on the positioning support column.

[0007] In some embodiments, the number of the positioning support columns is three and corresponds to the workpiece positioning points, and the number of the cylindrical pin and the number of the diamond pin are one and used for angular positioning.

[0008] In some embodiments, the bushing press-fitting assembly also includes a sleeve, a fixed block, and a second cylinder. The fixed block is installed on the symmetry axis of the left control arm clamp and the right control arm clamp. The second cylinder is connected to the fixed block. The output end of the second cylinder is connected to the sleeve. The sleeve is connected to the fixed block through a guide column, and the positioning pin is sleeved in the sleeve.

[0009] In some embodiments, a guide pin is installed in the sleeve, the guide pin is inserted into the positioning pin, a spring is sleeved on the outside, and the spring connects the inner wall of the sleeve and the positioning pin.

[0010] In some embodiments, the outer wall of the positioning pin and the inner wall of the sleeve are clearance fit, and the inner hole of the positioning pin and the guide pin are clearance fit.

[0011] In some embodiments, the bushing press assembly also includes a slider, a press, and a first cylinder; the slider is fixed to the frame base through a guide rail, the press is installed on the slider, the pressing head is driven by the press, the bushing is sleeved on the pressing head, the first cylinder is fixed to the frame base, and the output end is connected to the slider.

[0012] In some embodiments, the threaded steel sleeve pressing assembly also includes a lifting platform and a third cylinder; the third cylinder is installed on the side wall of the frame, and the output end is connected to the workbench, the workbench is installed on the top of the frame through a slide rail, and the lifting platform is connected to the workbench through an upper guide column and a fourth cylinder. The lifting platform can move in a vertical direction, and a bolt wrench is installed on the lifting platform.

[0013] In some embodiments, a servo motor is installed on the lifting platform, and the output end of the servo motor is connected to a bolt wrench through a bearing. The bearing is installed on a bearing seat. The inner wall of the bolt wrench is polygonal, and an iron core is installed on the bottom surface of the inner wall. The iron core is connected to an electromagnetic device.

[0014] In some embodiments, the control arm assembly device further comprises a display capable of displaying a press-fit curve and a device status.

[0015] The beneficial effects of the present invention are as follows: a set of control arm clamping assemblies can realize symmetrical positioning of the left and right control arm parts, and a set of press-fitting assemblies can simultaneously meet the pressing and screwing work of the left control arm and the right control arm, thereby realizing work station integration, improving space utilization, having a reasonable structure, advanced technology, and flexible adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the left part of a control arm.

[0017] Figure 2 It is a schematic diagram of the right part of a control arm.

[0018] Figure 3It is a front view of a control arm assembly device of the present invention.

[0019] Figure 4 It is a top view of a control arm assembly device of the present invention.

[0020] Figure 5 The invention discloses a front view of a control arm assembly device in which a right part is pressed and a threaded steel sleeve is screwed.

[0021] Figure 6 The utility model is a top view of the right part of a control arm assembly device of the present invention being pressed and installed and the threaded steel sleeve being screwed.

[0022] In the figure, 1-frame, 2-clamp base plate, 3-positioning support column, 4-cylindrical pin, 5-diamond pin, 6-pressing claw, 7-first cylinder, 8-guide rail, 9-slider, 10-press, 11-press head, 12-second cylinder, 13-fixed block, 14-guide column, 15-sleeve, 16-positioning pin, 17-spring, 18-guide pin, 19-third cylinder, 20-slide rail, 21-workbench, 22-fourth cylinder, 23-upper guide column, 24-guide sleeve, 25-lifting platform, 2 6-servo motor, 27-shaft, 28-bearing seat, 29-bearing, 30-bolt wrench, 31-electromagnetic device, 32-iron core, 33-computer control system, 34-display, 35-control arm left piece, 351-first positioning point, 352-second positioning point, 353-third positioning point, 354-bushing hole, 355-threaded steel sleeve hole, 36-control arm right piece, 37-bushing, 38-threaded steel sleeve. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and in combination with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Please refer to the following Figure 1-4 The control arm assembly device according to the embodiment of the present invention is described in conjunction with the embodiment.

[0026] A control arm assembly device includes a frame 1, a fixture base plate 2, a control arm clamping assembly, a bushing press-fitting assembly, a threaded steel sleeve press-fitting assembly, and a display 34; the fixture base plate 2 is installed at the bottom of the frame 1, the control arm clamping assembly is installed on the base plate of the frame 1, the bushing press-fitting assembly is partially installed on the fixture base plate 2, and partially press-fits the bushing 37 behind the fixture base plate 2, the threaded steel sleeve press-fitting assembly is installed on the top of the frame 1, and the display 34 displays the equipment status such as the press-fitting curve on one side of the frame 1.

[0027] like Figure 4 , 6 As shown, the control arm clamping assembly includes a positioning support column 3, a cylindrical pin 4, a diamond pin 5, and a pressure claw 6. The left control arm clamp and the right control arm clamp are symmetrically distributed on the fixture base plate 2. The left control arm clamp and the right control arm clamp respectively include three positioning support columns 3. The three positioning support columns 3 respectively correspond to the first positioning point 351, the second positioning point 352, and the third positioning point 353 of the workpiece for plane positioning. One cylindrical pin 4 and one diamond pin 5 are used for angular positioning. The pressure claw 6 is set on the positioning support column 3 for clamping the workpiece. The control arm can be positioned and clamped on the fixture base plate 2 through the control arm clamping assembly.

[0028] like Figure 4 , 6 As shown, the bushing press assembly includes a first cylinder 7, a guide rail 8, a slider 9, a press machine 10, a pressure head 11, a second cylinder 12, a fixed block 13, a guide column 14, a sleeve 15, a positioning pin 16, a spring 17, and a guide pin 18; the fixed block 13 is installed on the fixture base plate 2, and is located on the middle symmetry axis of the left control arm fixture and the right control arm fixture, the second cylinder 12 is fixed on the fixed block 13, and the output end of the second cylinder 12 is connected to the sleeve 15. Under the guidance of the guide column 14, the second cylinder 12 can control the sleeve 15 to move forward and backward. A guide pin 18 is installed in the sleeve 15, and one end of the guide pin 18 is inserted into the inner hole of the positioning pin 16. The spring 17 is sleeved on the guide pin 18, and one end of the spring 17 is fixedly connected to the inner wall of the sleeve 15, and the other end is fixedly connected to the positioning pin 16 The outer wall of the locating pin 16 and the inner wall of the sleeve 15 are clearance-matched, and the inner hole of the locating pin 16 and the guide pin 18 are clearance-matched. The end face of the sleeve 15 can be used for axial positioning of the control arm bushing hole 354, and the locating pin 16 is used for radial positioning of the control arm bushing hole 354; a pressure head 11 is arranged in the axial direction of the bushing hole 354, and the pressure head 11 is driven by the press 10. The bushing 37 can be sleeved on the pressure head 11 to achieve positioning. The press 10 is installed on the slider 9, and the slider 9 is installed on two symmetrical guide rails 8. The guide rails 8 and the first cylinder 7 are both fixed on the base of the frame 1. The output end of the first cylinder 7 is connected to the slider 9. The press 10 can be controlled to move forward and backward through the first cylinder 7. The press 10 controls the feed of the pressure head 11 to press the bushing 37 into the control arm bushing hole 354.

[0029] The bushing press-fitting assembly is set in the middle position of the right control arm clamp and the left control arm clamp. The symmetrical design of the right control arm clamp and the left control arm clamp allows the two to share the bushing press-fitting assembly. There is no need to adjust the position when replacing the left and right workpieces. That is, the bushing press-fitting assembly can simultaneously satisfy the positioning of the bushing hole 354 of the left control arm 35 and the right control arm 36 and the bushing 37 press-fitting process.

[0030] like Figure 3 , 5 As shown, the threaded steel sleeve press-fitting assembly includes a third cylinder 19, a slide rail 20, a workbench 21, a fourth cylinder 22, an upper guide column 23, a guide sleeve 24, a lifting platform 25, a servo motor 26, a shaft 27, a bearing seat 28, a bearing 29, a bolt wrench 30, an electromagnetic device 31, and an iron core 32; a bolt wrench 30 is arranged directly above the threaded steel sleeve hole 355, and the central axis of the bolt wrench 30 coincides with the central axis of the threaded steel sleeve hole 355, and the central axis of the bolt wrench 30 is perpendicular to the central axis of the pressing head 11. The inner wall shape of the bolt wrench 30 is consistent with the outer diameter shape of the threaded steel sleeve 38, which is a polygon. The iron core 32 is installed on the concave bottom surface of the bolt wrench 30. The iron core 32 is connected to the electromagnetic device 31. The electromagnetic device 31 controls the magnetism of the iron core 32, thereby controlling whether the threaded steel sleeve 38 can stick to the wrench or detach from the wrench. The output end of the servo motor 26 is installed with a bearing seat 28 and a bearing 29. The shaft 27 passes through the bearing 29 and the bolt wrench 30. The bolt wrench 30 is controlled to rotate by the servo motor 26. The servo motor 26 is installed on the lifting platform 25. Under the guidance of the upper guide column 23, the fourth cylinder 22 controls the vertical movement of the lifting platform 25. The lifting platform 25 A guide sleeve 24 is installed at the connection with the upper guide column 23, the fourth cylinder 22 and the upper guide column 23 are both fixed at the bottom of the workbench 21, the workbench 21 is installed on the slide rail 20, the two slide rails 20 are fixed on the top of the frame 1, the third cylinder 19 is fixed on the side of the frame 1, the output end of the third cylinder 19 is connected to the workbench 21, the third cylinder 19 can be used to control the horizontal movement of the workbench 21, so that the bolt wrench 30 can be switched between the left part 35 and the right part 36 of the control arm, that is, the left part 35 of the control arm and the right part 36 of the control arm share the bolt wrench 30, and the threaded steel sleeve 38 press-fitting assembly can be used to press-fit the threaded steel sleeve 38 of the left part 35 of the control arm and the right part 36 of the control arm.

[0031] On the side of the frame 1 is an electrical control system, which consists of a computer control system 33 and a display 34. It can realize the logical control of clamping the jaws, pressing the bushing 37, and tightening the threaded steel sleeve 38. The display 34 displays the pressing curve, equipment status and alarm information.

[0032] The working process of assembling by the present invention is as follows: first, the third cylinder 19 drives the workbench 21 to move, and the position of the bolt wrench 30 is adjusted. If the left part is processed, the bolt wrench 30 is located above the left part 35 of the control arm, and if the right part is processed, the bolt wrench 30 is located above the right part 36 of the control arm. Then, the threaded steel sleeve 38 and the bushing 37 are placed in the bolt wrench 30 and on the pressure head 11 respectively by the grabbing manipulator, and then the loading manipulator places the control arm on the fixture, and then the pressure claw 6 is started to press the workpiece, and then the second cylinder 12 is started to insert the positioning pin 16 into the bushing hole 354 of the workpiece, and the end face of the sleeve 15 is fitted with the end face of the bushing hole 354 of the workpiece, and then the pressure head 11 and the bolt wrench 30 are started at the same time to complete the press-fitting of the bushing 37 and the tightening of the threaded steel sleeve 38 respectively.

[0033] The beneficial effects of the present invention are as follows: a set of control arm clamping assemblies can realize symmetrical positioning of the left and right control arm parts, and a set of press-fitting assemblies can simultaneously meet the pressing and screwing work of the left control arm and the right control arm, thereby realizing work station integration, improving space utilization, having a reasonable structure, advanced technology, and flexible adjustment.

[0034] It should be noted that the terms "first", "second", "third" and "fourth" in the specification and claims of the present application and the drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

Claims

1. A control arm assembly device, comprising a frame (1), a fixture base plate (2), a control arm clamping assembly, a bushing press-fit assembly, and a threaded steel sleeve screw-connecting assembly, characterized in that: The clamp base plate (2) is mounted on the bottom of the frame (1); the control arm clamping assembly is mounted on the base plate of the frame (1) and is capable of locating the control arm positioning point and clamping the control arm; the bushing press-fitting assembly comprises a pressing head (11) and a positioning pin (16); the positioning pin (16) is mounted on the clamp base plate (2) and is used to locate the bushing hole (354); the pressing head (11) is arranged in the axial direction of the bushing hole (354) to press-fit the bushing (37); the threaded steel sleeve screw connection assembly comprises a workbench (21) and a bolt wrench (30); the workbench (21) is mounted on the top of the frame (1) and can slide relative to the frame (1); the bolt wrench (30) is mounted on the workbench (21).

2. A control arm assembly device according to claim 1, characterized in that: The control arm clamping assembly comprises a left control arm clamp and a right control arm clamp symmetrically distributed on a clamp base plate (2); the control arm clamp comprises a positioning support column (3) arranged on the clamp base plate (2), a cylindrical pin (4), a diamond pin (5), and a pressure claw (6); the pressure claw (6) is arranged on the positioning support column (3).

3. A control arm assembly device according to claim 2, characterized in that: The positioning support columns (3) are three arranged corresponding to the positioning points of the workpiece, and the cylindrical pin (4) and the diamond pin (5) are each one for angular positioning.

4. A control arm assembly device according to claim 1, characterized in that: The bushing press-fitting assembly also includes a sleeve (15), a fixing block (13), and a second cylinder (12); the fixing block (13) is installed on the symmetry axis of the left control arm clamp and the right control arm clamp; the fixing block (13) is connected to the second cylinder (12); the output end of the second cylinder (12) is connected to the sleeve (15); the sleeve (15) is connected to the fixing block (13) through a guide column (14); and the positioning pin (16) is sleeved in the sleeve (15).

5. A control arm assembly device according to claim 4, characterized in that: A guide pin (18) is installed in the sleeve (15), the guide pin (18) is inserted into the positioning pin (16), and a spring (17) is sleeved on the outside, and the spring (17) connects the inner wall of the sleeve (15) and the positioning pin (16).

6. A control arm assembly device according to claim 5, characterized in that: The outer wall of the positioning pin (16) and the inner wall of the sleeve (15) are clearance-matched, and the inner hole of the positioning pin (16) and the guide pin (18) are clearance-matched.

7. A control arm assembly device according to claim 4, characterized in that: The bushing press-fitting assembly also includes a slider (9), a press (10), and a first cylinder (7); the slider (9) is fixed to the base of the frame (1) through a guide rail (8), the press (10) is installed on the slider (9), the pressing head (11) is driven by the press (10), the bushing (37) is sleeved on the pressing head (11), the first cylinder (7) is fixed to the base of the frame (1), and the output end is connected to the slider (9).

8. The control arm assembly device according to claim 1, characterized in that: The threaded steel sleeve screw connection assembly also includes a lifting platform (25) and a third cylinder (19); the third cylinder (19) is installed on the side wall of the frame (1), and the output end is connected to the workbench (21); the workbench (21) is installed on the top of the frame (1) through a slide rail (20); the lifting platform (25) is connected to the workbench (21) through an upper guide column (23) and a fourth cylinder (22); the lifting platform (25) can move in a vertical direction; a bolt wrench (30) is installed on the lifting platform (25); and a guide sleeve (24) is installed at the connection between the lifting platform (25) and the upper guide column (23).

9. A control arm assembly device according to claim 8, characterized in that: A servo motor (26) is installed on the lifting platform (25), and the output end of the servo motor (26) is connected to a bolt wrench (30) through a bearing (29). The bearing (29) is installed on a bearing seat (28). The inner wall of the bolt wrench (30) is polygonal, and an iron core (32) is installed on the bottom surface of the inner wall. The iron core (32) is connected to an electromagnetic device (31).

10. A control arm assembly device according to any one of claims 1 to 9, characterized in that: The control arm assembly device further comprises a display (34), wherein the display (34) is capable of displaying a press-fitting curve and a device status.

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