Servo press-fitting machine for multi-shaft auxiliary frame

Abstract

The utility model relates to a servo press-fitting machine for a multi-shaft auxiliary frame. The servo press-fitting machine comprises a Y-shaft driving module, a press-fitting table and a mounting table, the positioning assembly is arranged on a movable terminal of the Y-axis driving module and used for fixing an auxiliary frame, and the detection mechanism and the press-fitting mechanism are arranged above the press-fitting table. The two ends of the Y-axis driving module are located on the upper surface of the press-fitting table and the upper surface of the mounting table correspondingly. The detection mechanism comprises a detection camera; the press-fitting mechanism comprises a pressure head assembly, a Z-axis driving module for driving the pressure head assembly to ascend and descend and an X-axis driving module for driving the Z-axis driving module to transversely move. The detection camera and the pressure head assembly are arranged on a movable terminal of the X-axis driving module; the multiple detection mechanisms and the multiple press-fitting mechanisms correspond to the multiple bushings of the auxiliary frame and are in one-to-one correspondence. In the working process, an assembled auxiliary frame is fed into the press-fitting table through the Y-axis driving module, a lining is subjected to press-fitting through cooperation of the pressing head assembly, the X-axis driving module and the Z-axis driving module, and detection is conducted through the detection camera before and after press-fitting.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile production, in particular to a multi-axis auxiliary frame servo press machine. Background Art

[0002] The subframe can be regarded as the skeleton of the front and rear axles, and is a component of the front and rear axles. The subframe is not a complete frame, but a bracket that supports the front and rear axles and suspension, so that the axles and suspension are connected to the "main frame" through it, and it is customarily called the "subframe". The function of the subframe is to block vibration and noise and reduce their direct entry into the car compartment, so it mostly appears in luxury cars and off-road vehicles, and some cars also install subframes for the engine. The traditional load-bearing body without a subframe has its suspension directly connected to the body steel plate. Therefore, the suspension rocker arm mechanism of the front and rear axles are all loose parts, not assemblies. After the birth of the subframe, the front and rear suspensions can be assembled on the subframe first to form an axle assembly, and then this assembly can be installed on the body together.

[0003] Subframes are now more and more widely used in automobiles. They not only play the role of intermediate connection, but also can buffer and absorb shock to improve the comfort of the car. During the assembly process of the subframe on the production line, the four bushings of the subframe need to be assembled by press-fitting. However, the placement of the bushings is currently done by manual visual inspection of the bushing placement direction, and the press-fitting quality and the highly uniform position of the bushings after press-fitting cannot be guaranteed. The on-site defective rate is very high. Once the misalignment is not eliminated, the bushing will be directly pressed and scrapped. Therefore, it is necessary to involve a subframe press-fitting machine to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-axis sub-frame servo press machine to address the deficiencies in the prior art. The multi-axis sub-frame servo press machine can well solve the above problems.

[0005] In order to achieve the above requirements, the technical solution adopted by the utility model to solve its technical problems is:

[0006] A multi-axis sub-frame servo press is provided, which includes a Y-axis drive module, and a press table and a mounting table arranged horizontally opposite to each other; the press also includes a positioning assembly arranged on the movable terminal of the Y-axis drive module for fixing the sub-frame, and a detection mechanism and a press mechanism arranged above the press; the two ends of the Y-axis drive module are respectively located on the upper surfaces of the press table and the mounting table; the detection mechanism includes a detection camera arranged vertically downward; the press mechanism includes a press head assembly for press-fitting the bushing on the sub-frame, a Z-axis drive module for driving the press head assembly to rise and fall, and an X-axis drive module for driving the Z-axis drive module to move horizontally; the detection camera is arranged on the movable terminal of the X-axis drive module, and the movable terminal of the X-axis drive module is also provided with an adjustment assembly for adjusting the position height of the detection camera; the detection mechanism and the press mechanism are provided with multiple and one-to-one corresponding to the multiple bushings of the sub-frame.

[0007] The multi-axis sub-frame servo press machine described in the utility model, wherein the press head assembly includes a press head body arranged vertically downward, a fixing seat arranged above the press head body, and a disc pressure sensor arranged between the fixing seat and the press head body; the fixing seat is arranged on the movable terminal of the Z-axis drive module.

[0008] The multi-axis sub-frame servo press described in the utility model, wherein the positioning assembly includes a positioning plate horizontally fixed on the movable terminal of the Y-axis drive module, and a bushing positioning column vertically arranged on the upper surface of the positioning plate; the bushing positioning column is provided with multiple bushings corresponding to the sub-frame and corresponds one to one.

[0009] The multi-axis sub-frame servo press machine described in the utility model, wherein the X-axis drive module includes a horizontally arranged X-axis guide rail, a mounting seat slidably arranged on the X-axis guide rail, and an X-axis drive unit driving the mounting seat to slide; the Z-axis drive module and the adjustment component are both arranged on the mounting seat.

[0010] The multi-axis sub-frame servo press machine described in the utility model, wherein the X-axis guide rails are provided with two and are relatively arranged on both sides of the upper surface of the mounting seat, the Z-axis drive module is located between the two X-axis guide rails, and the mounting seat is provided with a through hole for the movable terminal of the Z-axis drive module to pass through.

[0011] The multi-axis sub-frame servo press described in the utility model, wherein the adjustment component is arranged on the lower surface of the mounting seat, and the adjustment component includes a telescopic cylinder arranged vertically downward, and a positioning shaft arranged vertically on the piston rod of the telescopic cylinder; the positioning shafts are provided with two and are horizontally opposite, the detection camera is arranged on the positioning shafts through a fixing part, and the fixing part is detachably connected to the positioning shaft.

[0012] The multi-axis sub-frame servo press machine described in the utility model, wherein the detection mechanism further comprises a coaxial light source arranged at the lower end of the positioning shaft, and the coaxial light source is located below the detection camera.

[0013] In the multi-axis sub-frame servo press machine described in the utility model, the Y-axis driving module is a servo screw motor module, and the Z-axis driving module is a servo electric cylinder.

[0014] The beneficial effects of the utility model are as follows: when working, the subframe with the bushing installed is sent to the pressing table through the Y-axis driving module, and the pressing head assembly is aligned with the bushing and the pressing operation is performed through the cooperation of the X-axis driving module and the Z-axis driving module. The position of the bushing can be detected by the detection camera before and after pressing, and the feedback is given to the background detection system. Compared with the method of determination by the human eye, the detection accuracy of this scheme is high, which can greatly improve the quality of the bushing during pressing and ensure the yield of pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0016] Figure 1 It is a top view of the multi-axis sub-frame servo press machine of the utility model.

[0017] Figure 2 It is a bird's-eye view of the multi-axis sub-frame servo press assembly machine of the utility model.

[0018] Figure 3 yes Figure 2 A magnified view of the local structure.

[0019] Figure 4 It is a bottom view of the multi-axis sub-frame servo press assembly machine of the utility model.

[0020] Figure 5 yes Figure 4 A magnified view of the local structure. DETAILED DESCRIPTION

[0021] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present invention 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.

[0022] 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 invention. The appearance of the phrase in various places 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.

[0023] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0024] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0026] The multi-axis sub-frame servo press machine of the preferred embodiment of the utility model is as follows Figure 1-5As shown, the press machine includes a Y-axis drive module 10, and a press table 20 and a mounting table 30 arranged horizontally opposite to each other. The press machine also includes a positioning assembly 40 arranged on the movable terminal of the Y-axis drive module 10 for fixing the sub-frame A1, and a detection mechanism 50 and a press mechanism 60 arranged above the press table 20. Among them, the two ends of the Y-axis drive module 10 are respectively located on the upper surfaces of the press table 20 and the mounting table 30, so that the bushing A2 can be installed on the corresponding position of the sub-frame A1, and the operation is safer and more convenient. In addition, a mounting plate 80 is provided above the press table 20, and the mounting plate 80 is fixed on the press table 20 through a column 81, wherein the X-axis drive module is arranged on the mounting plate 80. The detection mechanism 50 includes a detection camera 51 arranged vertically downward to detect the coaxiality of the bushing A2. Compared with the detection by human eyes, the detection accuracy is higher.

[0027] The pressing mechanism 60 includes a pressing head assembly 61 for pressing the bushing A2 on the sub-frame A1, a Z-axis driving module 62 for driving the pressing head assembly 61 to rise and fall, and an X-axis driving module 63 for driving the Z-axis driving module 62 to move laterally; the detection camera 51 is arranged on the movable terminal of the X-axis driving module 63, and the movable terminal of the X-axis driving module 63 is also provided with an adjustment assembly 90 for adjusting the position height of the detection camera 51; the detection mechanism 50 and the pressing mechanism 60 are provided with multiple and one-to-one corresponding to the multiple bushings A2 of the sub-frame A1, so as to press the multiple bushings A2 at the same time. During operation, the subframe A1 with the bushing A2 installed is sent to the press-fitting table 20 through the Y-axis driving module 10, and the pressing head assembly 61 is aligned with the bushing A2 through the cooperation of the X-axis driving module 63 and the Z-axis driving module 62 to perform the press-fitting operation. Before and after the press-fitting, the position of the bushing A2 can be detected by the detection camera 51 to feed back to the background detection system. Compared with the method of determining by human eyes, this solution has high detection accuracy, which can greatly improve the quality of the bushing A2 during press-fitting and ensure the yield rate of press-fitting.

[0028] In this embodiment, the pressure head assembly 61 includes a pressure head body 610 arranged vertically downward, a fixing seat 611 arranged above the pressure head body 610, and a disc pressure sensor 612 arranged between the fixing seat 611 and the pressure head body 610. Among them, the pressure head body 610 and the fixing seat 611 are both cylindrical and are coaxially arranged with the disc pressure sensor 612. The fixing seat 611 is arranged on the movable terminal of the Z-axis driving module 62. During press-fitting, the pressure value can be fed back from time to time through the disc pressure sensor 612 and sent to the background system to ensure the precise application of pressure and the press-fitting accuracy and quality of the bushing A2.

[0029] In this embodiment, the positioning assembly 40 includes a positioning plate 41 horizontally fixed on the movable terminal of the Y-axis drive module, and a bushing A2 positioning column 42 vertically arranged on the upper surface of the positioning plate 41; the bushing A2 positioning column 42 is provided with multiple bushings A2 corresponding to the sub-frame A1 and corresponds one to one to facilitate batch pressing and improve efficiency.

[0030] In this embodiment, the X-axis driving module 63 includes a horizontally arranged X-axis guide rail 630, a mounting seat 631 slidably arranged on the X-axis guide rail 630, and an X-axis driving unit 632 driving the mounting seat 631 to slide; the Z-axis driving module 62 and the adjustment assembly 90 are both arranged on the mounting seat 631, the X-axis guide rail 630 is fixed on the lower surface of the mounting plate 80, and the mounting plate 80 is provided with a movable window 100 for the Z-axis driving module 62 to move horizontally. Among them, the X-axis driving unit 632 is a servo screw motor module. During the processing, through the cooperation of the X-axis driving unit 632 and the X-axis guide rail 630, high-precision positioning can be achieved to ensure the coaxiality of the pressure head body 610 with the bushing A2 when it descends.

[0031] In this embodiment, two X-axis guide rails 630 are provided and are arranged oppositely on both sides of the upper surface of the mounting seat 631, and the Z-axis drive module 62 is located between the two X-axis guide rails 630 to ensure the stability of the operation of the Z-axis drive module 62. The mounting seat 631 is provided with a through hole for the movable terminal of the Z-axis drive module 62 to pass through, so as to avoid and facilitate disassembly and assembly.

[0032] In this embodiment, the adjustment assembly 90 is arranged on the lower surface of the mounting seat 631, and the adjustment assembly 90 includes a telescopic cylinder 91 arranged vertically downward, and a positioning shaft 92 arranged vertically on the piston rod of the telescopic cylinder 91. Two positioning shafts 92 are provided and are horizontally opposite. The detection camera 51 is arranged on the positioning shafts 92 through a fixing member 110. The fixing member 110 is detachably connected to the positioning shafts 92. By adjusting the upper and lower positions of the fixing member 110 on the positioning shafts 92, the height adjustment of the detection camera 51 can be achieved. Moreover, the double positioning shafts 92 can ensure the stability of the detection camera 51.

[0033] In this embodiment, the detection mechanism 50 further includes a coaxial light source disposed at the lower end of the positioning shaft 92 . The coaxial light source is located below the detection camera 51 to ensure the clarity of the image captured by the detection camera 51 .

[0034] In this embodiment, the Y-axis driving module 10 is a servo screw motor module, and the Z-axis driving module 62 is a servo electric cylinder.

[0035] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A multi-axis sub-frame servo press, characterized in that: The press machine includes a Y-axis driving module, and a pressing table and a mounting table arranged horizontally opposite to each other; the press machine also includes a positioning component arranged on the movable terminal of the Y-axis driving module for fixing the sub-frame, and a detection mechanism and a pressing mechanism arranged above the pressing table; the two ends of the Y-axis driving module are respectively located on the upper surfaces of the pressing table and the mounting table; the detection mechanism includes a detection camera arranged vertically downward; the pressing mechanism includes a pressing head assembly for pressing the bushing on the sub-frame, a Z-axis driving module for driving the pressing head assembly to rise and fall, and an X-axis driving module for driving the Z-axis driving module to move horizontally; the detection camera is arranged on the movable terminal of the X-axis driving module, and the movable terminal of the X-axis driving module is also provided with an adjustment component for adjusting the position height of the detection camera; the detection mechanism and the pressing mechanism are provided with multiple and one-to-one corresponding to the multiple bushings of the sub-frame.

2. The multi-axis sub-frame servo press machine according to claim 1, characterized in that: The pressure head assembly includes a pressure head body arranged vertically downward, a fixing seat arranged above the pressure head body, and a disc pressure sensor arranged between the fixing seat and the pressure head body; the fixing seat is arranged on the movable terminal of the Z-axis driving module.

3. The multi-axis sub-frame servo press machine according to claim 1, characterized in that: The positioning assembly includes a positioning plate horizontally fixed on the movable terminal of the Y-axis driving module, and a bushing positioning column vertically arranged on the upper surface of the positioning plate; the bushing positioning column is provided with multiple bushings corresponding to the sub-frame and corresponds one to one.

4. The multi-axis sub-frame servo press machine according to claim 1, characterized in that: The X-axis driving module includes a horizontally arranged X-axis guide rail, a mounting seat slidably arranged on the X-axis guide rail, and an X-axis driving unit driving the mounting seat to slide; the Z-axis driving module and the adjusting component are both arranged on the mounting seat.

5. The multi-axis sub-frame servo press machine according to claim 4, characterized in that: The X-axis guide rails are provided with two and are arranged oppositely on both sides of the upper surface of the mounting seat, the Z-axis drive module is located between the two X-axis guide rails, and the mounting seat is provided with a through hole for the movable terminal of the Z-axis drive module to pass through.

6. The multi-axis sub-frame servo press machine according to claim 4, characterized in that: The adjustment component is arranged on the lower surface of the mounting seat, and the adjustment component includes a telescopic cylinder arranged vertically downward, and a positioning shaft arranged vertically on the piston rod of the telescopic cylinder; the positioning shafts are provided with two and are horizontally opposite, the detection camera is arranged on the positioning shafts through a fixing part, and the fixing part is detachably connected to the positioning shaft.

7. The multi-axis sub-frame servo press machine according to claim 6, characterized in that: The detection mechanism also includes a coaxial light source arranged at the lower end of the positioning shaft, and the coaxial light source is located below the detection camera.

8. The multi-axis sub-frame servo press machine according to claim 1, characterized in that: The Y-axis driving module is a servo screw motor module, and the Z-axis driving module is a servo electric cylinder.

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