Automatic assembling and detecting machine for rear damping damper

Abstract

The utility model belongs to the field of shock absorber assembly, and particularly discloses an automatic assembly detection machine for a rear damper, which comprises a plurality of stations for assembly procedures and a conveying assembly for conveying workpieces to each station. The conveying assembly comprises a conveying rod arranged in the arrangement direction of the multiple stations in a sliding mode and a plurality of first clamps evenly distributed on the conveying rod in the length direction of the conveying rod, each station is provided with a second clamp, the number of the first clamps is the same as that of the second clamps, and the second clamps are used for clamping workpieces to be assembled. And the first clamp is used for transferring the workpiece to the second clamp and clamping the assembled workpiece on the second clamp to be continuously transferred to the next station. By the adoption of the scheme, the problem that the assembly efficiency is greatly reduced in the process due to the fact that a worker needs to place a workpiece on the assembly equipment between every two working procedures and then takes down the workpiece to be conveyed to the assembly equipment of the next working procedure after the working procedure is completed can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of shock absorber assembly, and in particular relates to an automatic assembly and detection machine for a rear damper. Background Art

[0002] A damper is a device used to provide resistance to movement and thereby dissipate movement energy. It is widely used in vehicles and can be used to absorb energy and reduce shock. Figure 7 As shown, the damper mainly includes a damping tube 25, hydraulic oil filled in the damping tube, and a piston rod 26 slidably arranged in the damping tube. During the reciprocating sliding process of the piston rod 26, the hydraulic oil flows under pressure, and the damping force of the damper can be detected by reciprocating the sliding piston rod 26, which is also called shock absorber indicator detection. In addition, the end of the piston rod 26 extending out of the damping tube needs to be installed with a buffer block, a nut and other structures to connect with the vehicle or other components of the vehicle shock absorption system.

[0003] During the assembly process of the above-mentioned damper, some processes use assembly equipment for assembly, for example, an oil injection machine can be used to inject oil into the damping tube, and a dynamometer can be used to detect the damping force, while some processes still require manual operation by staff. Even if all processes are changed to machine assembly, staff are required to place the workpiece on the assembly equipment between each process, and then remove the workpiece and move it to the assembly equipment of the next process after completing the process. This process greatly affects the assembly efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an automatic assembly and testing machine for a rear damper to solve the problem that workers are required to place the workpiece on the assembly equipment between each process, and then remove the workpiece and move it to the assembly equipment for the next process after completing the process. This process greatly affects the assembly efficiency.

[0005] According to the embodiment of the utility model, the utility model adopts the following technical solution:

[0006] An automatic assembly and testing machine for rear dampers includes workstations for multiple assembly processes and a conveying component for conveying workpieces to each workstation. The conveying component includes a conveying rod slidably arranged along the arrangement direction of the multiple workstations and a plurality of first clamps uniformly distributed on the conveying rod along the length direction of the conveying rod. Each workstation is provided with a second clamp, and the number of the first clamps and the second clamps is the same. The second clamp is used to clamp the workpiece for assembly, and the first clamp is used to transfer the workpiece to the second clamp and clamp the assembled workpiece on the second clamp to transfer it to the next workstation.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] In this solution, after the workpiece has undergone the corresponding assembly process at each station, the first fixture clamps the workpiece on the second fixture that has completed the corresponding assembly process, and then the transfer rod drives the first fixture to slide one grid as a whole, so that all the workpieces on the first fixture can be moved down to the station of the next process as a whole, and then the workpiece is clamped by the second fixture to carry out the corresponding assembly process. At this time, the transfer rod drives the first fixture to reset, and then repeats the above process. In this solution, continuous assembly can be achieved by driving the first fixture to slide through the transfer rod, and the workpieces of each station are synchronously transferred to the next station, reducing the time required for transfer and improving assembly efficiency. Clamping the workpiece by the second fixture for assembly will not hinder the first fixture from resetting with the transfer rod.

[0009] Furthermore, the first clamp includes two first clamping plates that are slidably arranged relative to each other, and the second clamp includes two second clamping plates that are slidably arranged relative to each other, and clamping blocks are detachably connected to the first clamping plates and the second clamping plates.

[0010] Furthermore, a groove for inserting the first clamping plate is provided in the middle of the second clamping plate.

[0011] Furthermore, the first clamp is slidably connected to the transmission rod, and the sliding direction of the first clamp is perpendicular to the sliding direction of the transmission rod.

[0012] Furthermore, it also includes a slide rail for the transmission rod to slide, and a slider slidably connected to the slide rail is fixed on the transmission rod. There are multiple sliders and they are evenly distributed along the direction of the transmission rod. The sliders correspond to the first clamps one by one. The slide rail includes a transverse part arranged along the arrangement direction of the multiple workstations and multiple longitudinal parts evenly distributed along the length direction of the transverse part. The longitudinal part corresponds to the multiple workstations one by one. When the slider slides to the longitudinal part, the transmission rod enters the longitudinal part and slides along the longitudinal part.

[0013] Furthermore, the second clamp is arranged to slide vertically.

[0014] Furthermore, the workstations include an initial installation station for assembling the piston rod into the damping tube, a detection station for detecting the shock-absorbing resistance after the piston rod is installed, a post-installation station for subsequent assembly, and a discharging station for discharging the material; and also include a control system, a signal input end of the control system is used to receive the detection result signal of the detection station, and a signal output end of the control system is used to control qualified products to enter the post-installation station, and control unqualified products to no longer be assembled.

[0015] Furthermore, the unloading station includes a qualified line and a failed line, and the second fixture of the unloading station is used to place the workpiece on the qualified line or the failed line.

[0016] Further, the first clamp is rotatably arranged along an axis perpendicular to the sliding direction of the first clamp plate and / or the second clamp is rotatably arranged along an axis perpendicular to the sliding direction of the second clamp plate.

[0017] Furthermore, the initial installation station includes a first station for injecting oil into the damping tube, a second station for placing the piston rod, and a third station for pressing the piston rod and positioning the oil seal; the post-installation station includes a fifth station for sleeveing ​​a gasket on the piston rod, a sixth station for sealing, a seventh station for pulling out the piston rod, an eighth station for sleeveing ​​a buffer block on the piston rod, and a ninth station for screwing the nut onto the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0019] Figure 2 for Figure 1 Enlarged view of part A.

[0020] Figure 3 for Figure 1 Magnified view of part B.

[0021] Figure 4 It is a front view of an embodiment of the utility model.

[0022] Figure 5 It is a top view of an embodiment of the utility model.

[0023] Figure 6 It is a top view of the slide rail in the embodiment of the utility model.

[0024] Figure 7 It is a structural schematic diagram of a damper in the background technology of the utility model.

[0025] In the figure: 1. first station; 2. second station; 3. third station; 4. inspection station; 5. fifth station; 6. sixth station; 7. seventh station; 8. eighth station; 9. ninth station; 10. discharge station; 11. conveying rod; 12. first clamp; 13. first mounting block; 14. first fixture; 15. second clamp; 16. second mounting block; 17. second fixture; 18. groove; 19. qualified line; 20. unqualified line; 21. slide plate; 22. clamping block; 23. transverse part; 24. longitudinal part; 25. damping tube; 26. piston rod. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0027] like Figure 1 , Figure 4 , Figure 5As shown, the automatic assembly and testing machine for rear damper includes a frame, on which are arranged stations for multiple assembly processes and a transmission assembly for transmitting workpieces to each station. The transmission assembly includes a transmission rod 11 that is slidably arranged along the arrangement direction of the multiple stations and a plurality of first clamps 14 that are evenly distributed on the transmission rod 11 along the length direction of the transmission rod 11. In this embodiment, the transmission rod is connected to the frame along a transverse sliding direction, and a cylinder for driving the transmission rod 11 to slide is installed on the frame. Each station is provided with a second clamp 17, and the number of the first clamp 14 and the second clamp 17 is the same. The second clamp 17 is used to clamp the workpiece for assembly, and the first clamp 14 is used to transfer the workpiece to the second clamp 17 and clamp the assembled workpiece on the second clamp 17 to continue to transfer to the next station.

[0028] Specific, combined Figure 2 , Figure 3 As shown, the first clamp 14 includes a first mounting block 13 and two first clamps 12 relatively slidably arranged on the first mounting block 13, and the second clamp 17 includes a second mounting block 16 and two second clamps 15 relatively slidably arranged on the second mounting block 16. The first clamp 12 and the second clamp 15 are both detachably connected with a clamp block 22. Specifically, the clamp block 22 is clamped on the first clamp 12 or the second clamp 15, and the clamp block 22 can be replaced according to workpieces of different material types. Of course, the clamp block 22 can also be connected to the first clamp 12 or the second clamp 15 using other detachable connection methods in the prior art. The workpiece can be clamped by driving the clamping block 22 to slide relative to each other through the two first clamps 12. When the first clamp 14 moves to the second clamp 17, the workpiece is switched to the second clamp 17 for clamping. Specifically, in this embodiment, the first clamp 14 is slidably connected to the transmission rod 11, and the sliding direction of the first clamp 14 is perpendicular to the sliding direction of the transmission rod 11, that is, the first mounting block 13 is slidably connected to the transmission rod 11, and a cylinder for driving the first mounting block 13 to slide is installed on the transmission rod.

[0029] The first clamp 14 slides toward the second clamp 17, and the workpiece is transferred to the second clamp 17, and the two second clamps 15 drive the clamp block 22 to slide and clamp the workpiece. In order to facilitate the switching between the first clamp 14 and the second clamp 17, a groove 18 for the first clamp 12 to be inserted is provided in the middle of the second clamp 15, that is, when the first clamp 14 slides toward the second clamp 17, the first clamp 12 can be inserted into the groove 18. At this time, after the workpiece is clamped by the second clamp 17, the first clamp 14 can release the workpiece, and then the first clamp 14 slides away from the second clamp 17 to reset. In order to facilitate the second clamp 17 to clamp the workpiece for assembly, in this embodiment, the second clamp 17 is arranged to slide vertically, that is, the second mounting block 16 is connected to the frame along a vertical sliding manner, and a cylinder for driving the second mounting block 16 to slide is installed on the frame.

[0030] When in use, the assembly process of multiple stations is assembled from left to right (with Figure 4 14, and then the second clamp 17 is slid so that the second clamp 17 is adjusted to a height that matches the first clamp 14. Then the first clamp 14 is slid so that the first clamp 12 is inserted into the groove 18. At this time, the workpiece can be clamped by the first clamp 14, and the second clamp 17 releases the workpiece. After the first clamp 14 slides and resets, the transmission rod 11 is driven to drive the first clamp 14 to slide to the right as a whole by the spacing of one station, so that all workpieces on the first clamp 14 can be moved down as a whole to the station of the next process.

[0031] Then the first clamp 14 is slid so that the first clamping plate 12 is inserted into the groove 18. At this time, the workpiece can be clamped by the second clamp 17, and the first clamp 14 releases the workpiece. After the first clamp 14 slides and resets, the transmission rod 11 also slides to the left and resets. At this time, the second clamp 17 can clamp the workpiece to perform the assembly process of the corresponding station.

[0032] In another embodiment of the utility model, the first clamp 14 is connected to the transmission rod 11 without sliding, and the first mounting block 13 of the first clamp 14 is fixed to the transmission rod 11, and the motion track of the transmission rod 11 is designed. Specifically, in this embodiment, combined with Figure 6 As shown, it also includes a slide rail for the transmission rod 11 to slide. A slider slidably connected to the slide rail is fixed on the transmission rod 11. The slider is provided with multiple sliders and is evenly distributed along the direction of the transmission rod 11. The slider corresponds to the first clamp 14 one by one. The slide rail includes a transverse portion 23 arranged along the arrangement direction of multiple stations and multiple longitudinal portions 24 evenly distributed along the length direction of the transverse portion 23. The longitudinal portion 24 corresponds to multiple stations one by one. When the slider slides to the longitudinal portion 24, the transmission rod 11 enters the longitudinal portion 24 and slides along the longitudinal portion 24. A cylinder for driving the transmission rod 11 to slide along the transverse portion 23 is installed on the frame. The output shaft of the cylinder is slidably connected to the transmission rod 11 so that the transmission rod 11 can slide along the longitudinal portion 24. A cylinder for driving the transmission rod 11 to slide along the longitudinal portion 24 is installed on the frame. The output shaft of the cylinder is slidably connected to the transmission rod 11 so that the transmission rod 11 can slide along the longitudinal portion 24.

[0033] When the transmission rod 11 drives the first clamp 14 to slide along the transverse portion 23 to the next station, the slider slides to the longitudinal portion 24, and drives the transmission rod 11 to slide along the longitudinal portion 24, thereby driving the first clamp 14 to move toward the second clamp 17. In this embodiment, the sliding of the first clamp 14 relative to the transmission rod 11 is changed to the change of the motion trajectory of the transmission rod 11, so that when the first clamp 14 and the second clamp 17 are switched to clamp the workpiece, the first clamp 14 moves toward or away from the second clamp 17.

[0034] In another embodiment of the utility model, the workstations include an initial installation station for assembling the piston rod 26 into the damping tube 25, a detection station 4 for detecting the damping resistance after the piston rod 26 is installed, a post-installation station for subsequent assembly, and a discharging station 10 for discharging. In this embodiment, a detection station 4 is added in the assembly process, and the damping resistance can be detected after the piston rod 26 is assembled. If the damping resistance is unqualified, subsequent assembly is not required, which reduces the waste of subsequent assembly materials and the time for rework, disassembly and reassembly. In this solution, the detection station 4 can use the conventional shock absorber power indicator detection equipment in the prior art, and no improvement is made on how to perform the detection.

[0035] In order to improve the level of automated control, a control system is also included. The signal input end of the control system is used to receive the detection result signal of the detection station 4, and the signal output end of the control system is used to control qualified products to enter the post-installation station, and control unqualified products to no longer be assembled. Specifically, according to the detection result of the damping resistance of the workpiece by the detection station 4, whether the workpiece is subsequently assembled is controlled. When the detection result is unqualified, although the workpiece is transferred to the next station, that is, the post-installation station, the post-installation station is not started, and subsequent assembly is not performed until the workpiece is transferred to the discharge station 10 for discharge. When the detection result is qualified, the workpiece is transferred to the post-installation station for subsequent assembly.

[0036] In order to distinguish qualified products from unqualified products, the discharging station 10 includes a qualified line 19 and an unqualified line 20. The second clamp 17 of the discharging station 10 is used to place the workpiece on the qualified line 19 or the unqualified line 20. Specifically, the qualified line 19 includes a conveying channel for conveying and collecting the workpieces. The opening of the conveying channel is located directly below the discharging station 10. After the qualified product is clamped by the second clamp 17 of the discharging station 10, the second clamp 17 slides downward to convey the qualified product into the conveying channel. The unqualified line 20 includes a collection box. A slide plate 21 is connected to the frame along a horizontal sliding. A cylinder for driving the slide plate 21 to slide is installed on the frame. The second clamp 17 of the discharging station 10 is connected to the slide plate 21 along a vertical sliding. After the unqualified product is clamped by the second clamp 17 of the discharging station 10, the slide plate 21 is driven to slide horizontally, so that when the unqualified product is located above the collection box, the second clamp 17 releases the unqualified product, and the unqualified product enters the collection box for collection.

[0037] Specifically, taking the actual assembly process of the rear damper as an example, the initial assembly station includes a first station 1 for injecting oil into the damping tube 25, a second station 2 for placing the piston rod 26 into the damping tube 25, and a third station 3 for pressing the piston rod 26 and positioning the oil seal position in the damping tube 25. The rear assembly station includes a fifth station 5 for sleeve-mounting a gasket on the piston rod 26, a sixth station 6 for sealing the damping tube 25, a seventh station 7 for pulling the piston rod 26 out of the damping tube 25 to a certain height, an eighth station 8 for sleeve-mounting a buffer block on the piston rod 26, and a ninth station 9 for screwing a nut onto the piston rod 26.

[0038] The design of the above-mentioned assembly stations is only an assembly sequence of a rear damper. The function of one of the stations can also be changed according to actual assembly requirements. Each station can use conventional mechanical equipment in the prior art for automatic assembly, and some stations can also be manually operated. For example, pulling the piston rod 26 out of the damping tube 25 to a certain height can be completed manually. The specific assembly method of each station can be designed according to actual needs.

[0039] In another embodiment of the utility model, in order to facilitate the adjustment of the angle of the workpiece for assembly or discharge, the first clamp 14 is rotatably arranged along an axis perpendicular to the sliding direction of the first clamp 12 and / or the second clamp 17 is rotatably arranged along an axis perpendicular to the sliding direction of the second clamp 15. By controlling the first clamp 14 or the second clamp 17 to rotate, it is convenient to drive the workpiece to rotate together and adjust the angle of the workpiece. Figure 2 The first clamp 14 on the middle right side is in the state after driving the workpiece to rotate 90 degrees.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Automatic assembly and testing machine for rear damper, characterized by: It includes workstations for multiple assembly processes and a conveying component for conveying the workpiece to each workstation, the conveying component includes a conveying rod slidably arranged along the arrangement direction of the multiple workstations and a plurality of first clamps evenly distributed on the conveying rod along the length direction of the conveying rod, each workstation is provided with a second clamp, the number of the first clamps and the second clamps is the same, the second clamps are used to clamp the workpiece for assembly, and the first clamps are used to transfer the workpiece to the second clamp and clamp the assembled workpiece on the second clamp to transfer it to the next workstation.

2. The automatic assembly and testing machine for rear damper according to claim 1, characterized in that: The first clamp comprises two first clamping plates which are arranged to slide relative to each other, and the second clamp comprises two second clamping plates which are arranged to slide relative to each other. The first clamping plates and the second clamping plates are both detachably connected with clamping blocks.

3. The automatic assembly and testing machine for rear damper according to claim 2 is characterized by: A groove for inserting the first clamping plate is formed in the middle of the second clamping plate.

4. The automatic assembly and testing machine for rear damper according to claim 1, characterized in that: The first clamp is slidably connected to the transmission rod, and the sliding direction of the first clamp is perpendicular to the sliding direction of the transmission rod.

5. The automatic assembly and testing machine for rear damper according to claim 1, characterized in that: It also includes a slide rail for the transmission rod to slide, a slider slidably connected to the slide rail is fixed on the transmission rod, a plurality of sliders are provided and evenly distributed along the direction of the transmission rod, and the sliders correspond to the first clamps one by one; the slide rail includes a transverse portion arranged along the arrangement direction of the plurality of workstations and a plurality of longitudinal portions evenly distributed along the length direction of the transverse portion, the longitudinal portion corresponds to the plurality of workstations one by one, and when the slider slides to the longitudinal portion, the transmission rod enters the longitudinal portion and slides along the longitudinal portion.

6. The automatic assembly and testing machine for rear damper according to claim 1, characterized in that: The second clamp is arranged to slide vertically.

7. The automatic assembly and testing machine for rear damper according to claim 1, characterized in that: The workstations include an initial installation station for assembling a piston rod into a damping tube, a detection station for detecting the damping resistance after the piston rod is installed, a post-installation station for subsequent assembly, and a discharging station for discharging materials, which are arranged in sequence; and also include a control system, wherein a signal input end of the control system is used to receive a detection result signal from the detection station, and a signal output end of the control system is used to control qualified products to enter the post-installation station, and control unqualified products to no longer be assembled.

8. The automatic assembly and testing machine for rear damper according to claim 7, characterized in that: The discharging station includes a qualified line and a failed line, and the second fixture of the discharging station is used to place the workpiece on the qualified line or the failed line.

9. The automatic assembly and testing machine for rear damper according to claim 7, characterized in that: The first clamp is rotatably arranged along an axis perpendicular to the sliding direction of the first clamp plate and / or the second clamp is rotatably arranged along an axis perpendicular to the sliding direction of the second clamp plate.

10. The automatic assembly and testing machine for rear damper according to claim 7, characterized in that: The initial installation station includes a first station for injecting oil into the damping tube, a second station for placing the piston rod, and a third station for pressing the piston rod and positioning the oil seal; the post-installation station includes a fifth station for sleeveing ​​a gasket on the piston rod, a sixth station for sealing, a seventh station for pulling out the piston rod, an eighth station for sleeveing ​​a buffer block on the piston rod, and a ninth station for screwing a nut onto the piston rod.

Images