Automatic sleeve pressing production line for rear auxiliary frame

Abstract

The utility model discloses an automatic pressing sleeve production line for rear auxiliary frames, and belongs to the technical field of automobile part machining, the automatic pressing sleeve production line comprises a robot, a first pressing machine, a second pressing machine, a third pressing machine, a lead-in rail, a first feeding rail, a second feeding rail and a third feeding rail, the base plate is provided with a pressing and fixing assembly used for installing a rear auxiliary frame, the first feeding track is in butt joint with the first pressing machine, the second feeding track is in butt joint with the second pressing machine, the third feeding track is in butt joint with the third pressing machine, and the robot works in butt joint with the guide-in track, the first pressing machine, the second pressing machine and the third pressing machine. Automatic bushing press fitting of a whole set of rear auxiliary frames is achieved, repeated manual feeding and discharging are avoided, and the machining efficiency of products is improved.

Description

Technical Field

[0001] This application relates to the technical field of automotive component processing, and particularly to an automatic bushing pressing production line for a rear subframe. Background Art

[0002] The automotive subframe is the framework of the front and rear axles and an important part of them. The subframe is not a complete frame but only a support for the front and rear axles and the suspension. The supports of the axles and suspension are connected to the vehicle body through the subframe. The subframe includes a front subframe and a rear subframe, both of which are important components of the vehicle chassis.

[0003] Among them, the subframe requires bushings. The subframe is connected to the vehicle body through the bushings, and the bushings play a buffering role. In the early assembly process, generally, workers manually clamp and load the bushings, accurately pre-load them on the frame, and then cooperate with a press for pressing. The manual labor intensity is high, the production efficiency is low, and it is difficult to ensure consistent pressing effects, unable to meet the current requirements of automated production.

[0004] Subsequently, automated pressing equipment has also emerged on the market. For example, in the Chinese patent application "An Installation Device for the Rear Outer Bushing of an Automotive Subframe", application number: 202410214869.X, it is disclosed that it includes a feeding table and a bushing pressing mechanism. The feeding table serves as a support and installation carrier and is used to place the automotive subframe; the bushing pressing mechanism is installed on the feeding table and faces the bushing holes on the automotive subframe on the feeding table for installing the bushings into the bushing holes. The above-mentioned installation device for the rear outer bushing of the automotive subframe has a compact structure, can realize automatic assembly of the bushings, has high assembly efficiency and good effects, and at the same time has high safety in use, conforming to the design concept of intelligent manufacturing.

[0005] However, the structure of the automotive rear subframe involved in this application is as Figure 1 shown. The bushing installation holes of the rear subframe include four vertically oriented installation holes at the corners, two horizontally oriented installation holes on the front crossbeam, and two obliquely oriented installation holes on the middle crossbeam. Currently, the press machines used for bushing pressing of subframes in China basically show single-sequence pressing, with low intelligent level. To complete the pressing of multiple products, it needs to be done on multiple pressing devices, resulting in high labor intensity and low production efficiency. Moreover, because the bushing structures matched at different positions of the rear subframe are not the same, multiple processes are required in actual processing, and workers need to repeatedly load and unload materials on different pressing devices to complete the bushing pressing of the rear subframe in this application. Utility Model Content

[0006] The technical problem to be solved by this application is to provide an automatic bushing pressing production line for a rear subframe, which realizes automatic bushing pressing of the entire rear subframe, avoids repeated manual loading and unloading of materials, and improves the processing efficiency of products.

[0007] The technical solution adopted in this application is as follows: an automatic bushing pressing production line for the rear subframe, which includes a robot, a first press, a second press, a third press, an import track, a first loading track, a second loading track, and a third loading track. A substrate is installed on the import track, and a pressing and fixing assembly for installing the rear subframe is arranged on the substrate. The first loading track is docked with the first press, the second loading track is docked with the second press, and the third loading track is docked with the third press. The robot works to dock with the import track, the first press, the second press, and the third press.

[0008] Compared with the prior art, the advantages of this application are as follows. First, in this application, multiple presses are integrated, and the processes of pressing bushings into the mounting holes at different positions of the rear subframe are respectively realized by setting the first press, the second press, and the third press. Second, in this application, the first loading track is respectively set to be docked with the first press, the second loading track is docked with the second press, and the third loading track is docked with the third press, realizing the feeding of different bushings at three different pressing positions, and cooperating with the presses to complete the bushing pressing of the rear subframe. Third, in this application, a robot is set, and the robot is used to realize the feeding and unloading of the rear subframe at different presses. When the rear subframe passes through the first press, the second press, and the third press one by one, the bushing pressing process for all the mounting holes of the rear subframe is completed. In summary, this application realizes the automatic bushing pressing of the entire rear subframe, avoids repeated manual feeding and unloading, and improves the processing efficiency of the product.

[0009] In some embodiments of this application, it includes two robots and a turntable. The two robots are arranged on both sides of the turntable, one on the left and the other on the right, and are respectively denoted as robot one and robot two. The robot one is docked with the import track, the first press, and the turntable, and the robot two is docked with the turntable, the second press, and the third press.

[0010] In this application, setting two robots to realize the automatic feeding and unloading of the entire production line is an optimal solution. First, the two robots work simultaneously, effectively improving the efficiency of the entire process. Second, it can more reasonably allocate the positions of each device in the production line.

[0011] In some embodiments of this application, both the first loading track and the second loading track include a loading end and a connection end. A detection probe for sensing the bushing is installed at the loading end, and the connection end is docked with the first press or the second press.

[0012] In this application, by setting the detection probe, it is detected whether the feeding (the bushings to be pressed) on the first loading track, the second loading track, and the third loading track is normal.

[0013] In some embodiments of the present application, the import track includes a detection end and a clamping end, and the detection component is installed at the detection end or on the substrate; the substrate with the rear subframe installed reaches the clamping end through the detection end and waits for the robot to clamp. In the present application, first place the rear subframe to be press-fitted on the substrate located at the detection end. At this time, the detection component starts to work to detect whether the rear subframe installed on the substrate meets the detection standard.

[0014] Further, if it meets the standard, it is transported by the substrate to the clamping end. If it does not meet the standard, the alarm will give an alarm and wait for manual operation.

[0015] In some embodiments of the present application, when the robot works, it clamps the rear subframe on the import track and transports it to the first press-fitting machine or clamps the rear subframe on the first press-fitting machine and transports it to the transfer table; when the second robot works, it clamps the rear subframe on the transfer table and transports it to the second press-fitting machine or clamps the rear subframe on the second press-fitting machine and transports it to the third press-fitting machine. The present application simplifies the movement of the robot and improves the processing efficiency of the entire production line.

[0016] In some embodiments of the present application, the third loading track includes an output position, a placement position, and a press-fitting position. A pallet is installed on the loading track. A fixing tool for fixing the vehicle frame is provided on the pallet. The pallet is connected to a power device, and the power device drives the pallet to move between the output position, the placement position, the press-fitting position, and the output position.

[0017] In some embodiments of the present application, the third press-fitting machine is arranged above the press-fitting position of the third loading track. When the pallet moves to the placement position, the rear subframe is unloaded from the pallet and a bushing is installed on the pallet. When the pallet moves to the placement position, the second robot places the rear subframe on the pallet. When the pallet moves to the press-fitting position, the third press-fitting machine works.

[0018] In some embodiments of the present application, the third press-fitting machine includes a gantry. A cross beam is arranged in the middle of the gantry. A vertically arranged vertical slide rail is cooperatively installed on the cross beam and the gantry. A slide seat connected to a power cylinder is movably installed on the vertical slide rail. At least one press sleeve assembly is suspended below the slide seat. The press sleeve assembly is horizontally arranged. The press sleeve assembly includes a bottom support and a press head arranged opposite to the bottom support. There is a spacing between the bottom support and the press head for a part of the vehicle frame to extend into.

[0019] A gantry is set up. The bushing assembly is suspended by the gantry, so that the conventionally vertically placed bushing assembly (i.e., the direction of the press-fitting drive work is the vertical direction) becomes horizontally placed (i.e., the direction of the press-fitting drive work is the horizontal direction). Then, the angle of the bushing assembly is pre-adjusted when the bushing assembly is connected to the slide block. When the power cylinder drives the slide block to move downward, the bushing assembly can be opposite to the mounting hole of the frame to be press-fitted at an appropriate angle. Specifically, there is a gap between the bottom support of the bushing assembly and the press head for a part of the frame to extend into. When the bushing and the mounting hole of the frame to be press-fitted extend into the gap between the bottom support and the press head, the press head moves towards the bottom support to realize the press-fitting of the bushing.

[0020] In some embodiments of the present application, at least one bushing assembly is suspended below the slide block. The two bushing assemblies are symmetrically arranged left and right, and the included angle between the two bushing assemblies is an acute angle. In the present application, the specific number of the bushing assemblies and the angle of the bushing assemblies are determined by the number and angle of the mounting holes of the frame to be bushed.

[0021] In some embodiments of the present application, a mounting seat is arranged in the middle of the support plate. A press seat is mounted on the mounting seat, and a positioning pin is arranged on the press seat. The positioning pin is coaxial with the mounting hole of the frame to be press-fitted, and the bushing is sleeved outside the positioning pin. In the present application, the installation and positioning of the bushing are realized by arranging a mounting seat in the middle of the support plate.

[0022] On the basis of conforming to the common knowledge in the art, the above embodiments can be combined arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be used to limit the scope of the present application. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0024] Figure 1 It is a schematic structural diagram of the rear subframe of an automobile;

[0025] Figure 2 It is a schematic structural diagram of the present application;

[0026] Figure 3 It is a schematic structural diagram of the third press in the present application;

[0027] Figure 4 It is a schematic partial structural diagram of the third press in the present application.

[0028] Among them, the specific descriptions of the attached drawing reference numerals are as follows: 1. Pressing machine 1; 2. Pressing machine 2; 3. Pressing machine 3; 4. Import track; 5. Feeding track 1; 6. Feeding track 2; 7. Feeding track 3; 8. Substrate; 9. Transfer table; 10. Robot 1; 11. Robot 2; 12. Detection probe; 13. Output position; 14. Placement position; 15. Pressing position; 16. Pallet; 17. Gantry; 18. Cross beam; 19. Slide; 20. Power cylinder; 21. Pressing sleeve assembly; 22. Bottom support; 23. Pressing head; 24. Mounting seat; 25. Pressing seat. Specific embodiments

[0029] The following will describe the present application in detail with reference to the accompanying drawings.

[0030] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] The automatic pressing sleeve production line for the rear subframe, Embodiment 1 is as Figure 2 shown: It includes a robot, pressing machine 1, pressing machine 2, pressing machine 3, import track 4, feeding track 1, feeding track 2 and feeding track 3. In the present application, multiple pressing machines are integrated. By setting pressing machine 1, pressing machine 2, and pressing machine 3 respectively, the process of pressing sleeves on different mounting holes of the rear subframe is realized.

[0032] A substrate 8 is installed on the import track 4, and a pressing and fixing assembly for installing the rear subframe is arranged on the substrate 8. The feeding track 1 is docked with the pressing machine 1, the feeding track 2 is docked with the pressing machine 2, and the feeding track 3 is docked with the pressing machine 3, realizing the feeding of different bushings at three different pressing positions in the present application, and cooperating with the pressing machine to realize the bushing pressing of the rear subframe. The robot works and docks with the import track 4, pressing machine 1, pressing machine 2, and pressing machine 3. The robot realizes the feeding and discharging of the rear subframe at different pressing machines. When the rear subframe passes through the pressing machine 1, pressing machine 2, and pressing machine 3 one by one, the rear subframe completes the bushing pressing process for all mounting holes.

[0033] In summary, the present application realizes the automatic bushing pressing of the entire rear subframe, avoids manual repeated feeding and discharging, and improves the processing efficiency of the product.

[0034] Embodiment 2, as Figures 2 to 3As shown in the figure, it includes two robots and a transfer table 9. The two robots, one on the left and one on the right, are arranged on both sides of the transfer table 9 and are respectively denoted as robot one 10 and robot two 11. The robot one 10 is docked with the loading track 4, the first press 1, and the transfer table 9. The robot two 11 is docked with the transfer table 9, the second press 2, and the third press 3.

[0035] In this application, it is a preferred solution to set two robots to achieve automatic loading and unloading of the entire production line. First, the two robots work simultaneously, effectively improving the efficiency of the entire process. Second, it can more reasonably distribute the positions of various equipment in the production line.

[0036] Both the first loading track 5 and the second loading track 6 include a loading end and a connection end. A detection probe 12 for detecting the bushing is installed at the loading end. The connection end is connected to the first press 1 or the second press 2. In this application, by setting the detection probe 12, it is detected whether the lining bushings (to be pressed) are loaded normally on the first loading track 5, the second loading track 6, and the third loading track 7.

[0037] The import track 4 includes a detection end and a clamping end. The detection component is installed at the detection end or on the substrate 8. The substrate 8 with the rear subframe installed reaches the clamping end through the detection end and waits for the robot to clamp. In this application, first, the rear subframe to be pressed is placed on the substrate 8 located at the detection end. At this time, the detection component starts to work to detect whether the rear subframe installed on the substrate 8 meets the detection standard.

[0038] Furthermore, if it meets the standard, it is transported by the substrate 8 to the clamping end. If it does not meet the standard, the alarm will give an alarm and wait for manual operation.

[0039] When the robot one 10 works, it clamps the rear subframe on the import track 4 and transports it to the first press 1 or clamps the rear subframe on the first press 1 and transports it to the transfer table 9. When the robot two 11 works, it clamps the rear subframe on the transfer table 9 and transports it to the second press 2 or clamps the rear subframe on the second press 2 and transports it to the third press 3. This application simplifies the movement of the robot and improves the processing efficiency of the entire production line.

[0040] The third loading track 7 includes an output position 13, a placement position 14, and a pressing position 15. A pallet 16 is installed on the loading track. A fixing tool for fixing the vehicle frame is provided on the pallet 16. The pallet 16 is connected to a power device, and the power device drives the pallet 16 to move between the output position 13, the placement position 14, the pressing position 15, and the output position 13.

[0041] The other content of the second embodiment is the same as that of the first embodiment.

[0042] Embodiment 3, as Figures 2 to 4As shown in the figure, the third press machine 3 is arranged above the pressing position 15 of the third loading track 7. When the pallet 16 moves to the placing position 14, the rear subframe is unloaded from the pallet 16, and then a bushing is installed on the pallet 16. When the pallet 16 moves to the placing position 14, the second robot 11 places the rear subframe on the pallet 16. When the pallet 16 moves to the pressing position 15, the third press machine 3 starts to work.

[0043] The third press machine 3 includes a gantry 17. A crossbeam 18 is arranged in the middle of the gantry 17. A vertically arranged vertical slide rail is cooperatively installed on the crossbeam 18 and the gantry 17. A slide block 19 connected to a power cylinder 20 is movably installed on the vertical slide rail. At least one bushing pressing assembly 21 is suspended below the slide block 19. The bushing pressing assembly 21 is horizontally arranged. The bushing pressing assembly 21 includes a bottom support 22 and a pressing head 23 arranged opposite to the bottom support 22. There is a gap between the bottom support 22 and the pressing head 23 for a part of the vehicle frame to extend into.

[0044] The gantry 17 is set up, and the bushing pressing assembly 21 is suspended through the gantry 17, so that the conventionally vertically placed bushing pressing assembly 21 (i.e., the direction of the pressing drive work is the vertical direction) becomes horizontally arranged (i.e., the direction of the pressing drive work is the horizontal direction). Then, the angle of the bushing pressing assembly 21 is pre-adjusted when the bushing pressing assembly 21 is connected to the slide block 19. When the power cylinder 20 drives the slide block 19 to move downward, the bushing pressing assembly 21 can be opposite to the installation hole of the vehicle frame to be pressed at a suitable angle. Specifically, there is a gap between the bottom support 22 and the pressing head 23 of the bushing pressing assembly 21 for a part of the vehicle frame to extend into. When the installation holes of the bushing and the vehicle frame to be pressed extend into the gap between the bottom support 22 and the pressing head 23, the pressing head 23 moves towards the bottom support 22 to complete the pressing of the bushing.

[0045] At least one bushing pressing assembly 21 is suspended below the slide block 19. Two bushing pressing assemblies 21 are symmetrically arranged left and right, and the included angle between the two bushing pressing assemblies 21 is an acute angle. In this application, the specific number of the bushing pressing assemblies 21 and the angle of the bushing pressing assemblies 21 are determined by the number and angle of the installation holes of the vehicle frame to be bushed.

[0046] An installation seat 24 is arranged in the middle of the pallet 16. A pressing seat 25 is installed on the installation seat 24. A positioning pin is arranged on the pressing seat 25. The positioning pin is coaxial with the installation hole of the vehicle frame to be pressed, and the bushing is sleeved outside the positioning pin. In this application, the installation and positioning of the bushing are realized by arranging the installation seat 24 in the middle of the pallet 16.

[0047] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0048] The above has introduced the present application in detail. Specific examples are used in this text to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the present application and its core idea. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present application, several improvements and modifications can also be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. Automatic sleeve pressing production line for rear subframe, 1. Its characteristics are: The invention comprises a robot, a press machine 1 (1), a press machine 2 (2), a press machine 3 (3), an introduction track (4), a feeding track 1 (5), a feeding track 2 (6) and a feeding track 3 (7); the introduction track (4) is provided with a base plate (8), the base plate (8) is provided with a pressing assembly for installing a rear subframe; the feeding track 1 (5) is docked with the press machine 1 (1), the feeding track 2 (6) is docked with the press machine 2 (2), the feeding track 3 (7) is docked with the press machine 3 (3); the robot works by docking with the introduction track (4), the press machine 1 (1), the press machine 2 (2) and the press machine 3 (3).

2. The rear subframe automatic sleeve pressing production line according to claim 1 is characterized in that: The invention comprises two robots and a transfer table (9). Two robots one (10) are arranged on the left and the right sides of the transfer table (9) and are respectively recorded as robot one (10) and robot two (11). The robot one (10) is connected to the introduction track (4), the press machine one (1) and the transfer table (9), and the robot two (11) is connected to the transfer table (9), the press machine two (2) and the press machine three (3).

3. The rear subframe automatic sleeve pressing production line according to claim 1 is characterized in that: The first feeding track (5) and the second feeding track (6) both comprise a feeding end and a connecting end, the feeding end being equipped with a detection probe (12) for sensing the bushing, and the connecting end being connected to the first pressing machine (1) or the second pressing machine (2).

4. The rear subframe automatic sleeve pressing production line according to claim 1 is characterized in that: The introduction track (4) comprises a detection end and a clamping end, and the detection component is mounted on the detection end or the base plate (8); the base plate (8) mounted with the rear sub-frame passes through the detection end to the clamping end to wait for clamping by the robot.

5. The rear subframe automatic sleeve pressing production line according to claim 2 is characterized in that: When the robot 1 (10) is in operation, it clamps the rear sub-frame located on the introduction track (4) and transports it to the press 1 (1), or clamps the rear sub-frame on the press 1 (1) and transports it to the transfer table (9); when the robot 2 (11) is in operation, it clamps the rear frame located on the transfer table (9) and transports it to the press 2 (2), or clamps the rear sub-frame on the press 2 (2) and transports it to the press 3 (3).

6. The rear subframe automatic sleeve pressing production line according to claim 1 is characterized in that: The feeding track three (7) comprises an output position (13), a placement position (14) and a press-fitting position (15); a support plate (16) is installed on the feeding track; a fixing tool for fixing a vehicle frame is arranged on the support plate (16); the support plate (16) is connected to a power device, and the power device drives the support plate (16) to move among the output position (13), the placement position (14), the press-fitting position (15) and the output position (13).

7. The rear subframe automatic sleeve pressing production line according to claim 6 is characterized in that: The press machine three (3) is arranged above the press position (15) of the loading track three (7); when the pallet (16) moves to the placement position (14), the rear sub-frame is removed from the pallet (16) and the bushing is installed on the pallet (16); when the pallet (16) moves to the placement position (14), the robot two (11) places the rear sub-frame on the pallet (16); when the pallet (16) moves to the press position (15), the press machine three (3) works.

8. The rear subframe automatic sleeve pressing production line according to claim 1 or 7, characterized in that: The press machine three (3) comprises a gantry (17), a crossbeam (18) is arranged in the middle of the gantry (17), a vertical slide rail is installed on the crossbeam (18) and the gantry (17), a slide seat (19) connected to the power cylinder (20) is movably installed on the vertical slide rail, at least one pressing sleeve assembly (21) is suspended below the slide seat (19), the pressing sleeve assembly (21) is arranged horizontally, and the pressing sleeve assembly (21) comprises a bottom support (22) and a pressing head (23) arranged opposite to the bottom support (22), and there is a gap between the bottom support (22) and the pressing head (23) for the frame part to extend into.

9. The rear subframe automatic sleeve pressing production line according to claim 8 is characterized in that: At least one pressing sleeve assembly (21) is hoisted below the slide seat (19), the two pressing sleeve assemblies (21) are symmetrically arranged on the left and right, and the angle between the two pressing sleeve assemblies (21) is an acute angle.

10. The rear subframe automatic sleeve pressing production line according to claim 7, characterized in that: A mounting seat (24) is arranged in the middle of the support plate (16), a pressing seat (25) is installed on the mounting seat (24), a positioning pin is arranged on the pressing seat (25), the positioning pin is coaxial with the mounting hole of the frame to be pressed, and a bushing is sleeved outside the positioning pin.

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