Oil cylinder assembly presetting device

Abstract

The utility model discloses an oil cylinder assembly pre-adjusting device which comprises a moving device, a fixed clamp set, a moving clamp set, an oil supply and return system and a control device, wherein the fixed clamp set and the moving clamp set are oppositely arranged on the moving device at intervals. The fixed clamp set is fixedly arranged, the movable clamp set is arranged in a sliding mode, and the fixed clamp set and the movable clamp set are used for oppositely clamping the two ends of an oil cylinder to be pre-adjusted. The oil supply and return system is used for being connected with an oil inlet and outlet way of the oil cylinder so as to enable hydraulic oil to circulate between the oil supply and return system and the oil cylinder under the action of the control device, and then the oil cylinder can fully stretch and contract for multiple times to exhaust, and the oil supply and return system is further used for being matched with the control device to accurately adjust the assembly length of the oil cylinder. And the oil cylinder is kept in a rigid state with stable length after being connected with a hydraulic valve of a hydraulic system of a whole machine product. According to the oil cylinder assembly pre-adjusting device, the overall assembly operation efficiency can be improved, the labor intensity of operators can be reduced, and the safety problem caused by oil cylinder crawling or shaking when an oil cylinder stretches out and draws back for the first time can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder assembly, in particular to an oil cylinder assembly pre-adjustment device. Background Art

[0002] The cylinder is an important hydraulic system actuator in heavy machinery today, and plays a very important role in the field of heavy machinery. A single product uses cylinders ranging from a few to dozens. Cylinder installation and adjustment occupies a considerable workload in the assembly and commissioning of heavy machinery. Cylinder installation and adjustment directly affects the efficiency, quality and safety of the installation and adjustment of heavy machinery products.

[0003] When the cylinder is assembled on a heavy machinery, the length of the cylinder needs to be adjusted to ensure that the cylinder is connected to the corresponding parts of the heavy machinery. Due to the lack of a device that is easy to move and can accurately adjust the length of the cylinder next to different assembly stations of the product, it is often necessary to adjust the length of the cylinder multiple times on site or adjust the posture of other parts at the same time to meet the assembly connection of the cylinder. The on-site assembly efficiency is low and the labor intensity of the operators is high. After the cylinder is assembled, the gravity of other parts causes the cylinder to expand and contract, and there is a safety problem of abnormal movement of the active parts of the whole product with multiple degrees of freedom. When the whole product is debugged, the air in the cylinder barrel will cause unstable pressure, the cylinder will crawl or tremble, and the response of the control system will also deteriorate accordingly. There is a safety risk when the cylinder expands and contracts for the first time during product debugging, and debugging safety problems are prone to occur. Improving the assembly efficiency of the cylinder during the assembly of heavy machinery, reducing the labor intensity of operators, and meeting the higher safety requirements of heavy machinery product assembly and debugging have become problems that technicians in this field need to solve urgently.

[0004] Prior art 1: The device for adjusting the length of the oil cylinder disclosed in CN103334984A meets different oil cylinder length adjustment requirements through linear drive mechanisms such as cylinders and different molds. With this type of technology, it is impossible to complete the exhaust of the oil cylinder before the oil cylinder is assembled into the complete product, and solve the safety problem of the first extension and retraction of the oil cylinder during debugging; the movement of the device is inconvenient, and it needs the assistance of other handling equipment such as forklifts to move between the various assembly stations in the factory; the device needs an external air source, and there are certain usage restrictions.

[0005] Prior art 2: The oil cylinder disassembly, maintenance and assembly workbench disclosed in CN11558917A can achieve preliminary adjustment of the oil cylinder length and exhaust through a pump station. With this type of technology, it is impossible to achieve precise adjustment of the length before the oil cylinder is assembled into a complete product. When the oil cylinder is assembled into a complete product, it is often necessary to adjust the length of the oil cylinder again; the movement of the device is inconvenient. Generally, the oil cylinder is assembled with a balance valve and then concentrated on the workbench for length adjustment and exhaust, resulting in the need for multiple transportation of parts such as the oil cylinder.

[0006] Use a compressed air pipe to connect to the hydraulic cylinder, use compressed air to push the cylinder piston rod to extend (retract) or use a crane or other lifting equipment to drag the cylinder piston rod to extend (retract). This type of technology cannot accurately adjust the length of the cylinder, and it is often necessary to adjust the length of the cylinder multiple times on site or adjust the posture of other parts at the same time to meet the final assembly connection of the cylinder, affecting the on-site assembly efficiency; using this type of technology, there is a large amount of air in the cylinder, and there is a safety risk when the cylinder is extended and retracted for the first time during the product debugging, which is prone to debugging safety problems. Utility Model Content

[0007] The utility model provides a cylinder assembly pre-adjustment device to solve technical problems existing in existing devices, such as low overall assembly efficiency, high labor intensity of operators, safety problems caused by the cylinder becoming shorter due to the gravity of other parts after the cylinder is assembled, and safety problems caused by the cylinder creeping or shaking when the cylinder is extended and retracted for the first time during product debugging.

[0008] The technical solution adopted by the utility model is as follows:

[0009] A cylinder assembly pre-adjustment device comprises: a mobile device that is rotatably supported on a workshop floor, and a fixed clamp group and a mobile clamp group that are relatively spaced apart on the mobile device, an oil supply and return system, and a control device, wherein the mobile device and the oil supply and return system are respectively connected to the control device; the fixed clamp group is fixedly arranged, and the mobile clamp group is slidably arranged, the fixed clamp group and the mobile clamp group are used to relatively clamp the two ends of the cylinder to be pre-adjusted, and the mobile clamp group is used to slide relative to the fixed clamp group under the extension and contraction of the cylinder; the oil supply and return system is used to be connected to the inlet and outlet oil circuits of the cylinder, so as to circulate the hydraulic oil between the oil supply and return system and the cylinder under the action of the control device, thereby making the cylinder fully extended and fully retracted and exhausted for multiple times, and the oil supply and return system is also used to cooperate with the control device to accurately adjust the assembly length of the cylinder, so that the cylinder maintains a rigid state with a stable length after being connected to the hydraulic valve of the hydraulic system of the complete product.

[0010] Furthermore, the control device includes a controller, a host computer and a barcode scanner fixed on the fixed clamp group; the host computer, the barcode scanner, the mobile device and the oil supply and return system are respectively connected to the controller; the barcode scanner is used to enter the whole machine product information and cylinder information, so that the controller can control the operation of the oil supply and return system accordingly.

[0011] Furthermore, the control device also includes a remote control connected to the controller; the mobile device includes a traveling chassis that is rolled and supported on the workshop floor, and a mounting bracket that is vertically supported on the traveling chassis, and the traveling chassis is electrically connected to the remote control; the fixed clamp group is fixed to the top of the mounting bracket, and the mobile clamp group is slidably supported on the traveling chassis.

[0012] Furthermore, the mobile device also includes a power battery pack fixed on the traveling chassis; the power battery pack is respectively connected to the traveling chassis, the oil supply and return system and the control device to provide corresponding power to them.

[0013] Furthermore, the fixed clamp group includes a placement platform fixed to the top of the mounting bracket, and a first clamping assembly fixed on the placement platform; the moving device also includes a track arranged on the traveling chassis and extending along the extension and retraction direction of the oil cylinder; the moving clamp group includes a moving platform slidably supported on the track, and a second clamping assembly fixed on the moving platform; the second clamping assembly and the first clamping assembly are used to relatively clamp the two ends of the oil cylinder.

[0014] Furthermore, the control device also includes a length sensor fixed on the placement platform; the length sensor is connected to the controller to accurately measure the telescopic length of the oil cylinder.

[0015] Furthermore, the cylinder assembly pre-adjustment device also includes an oil collector for integrating the hydraulic oil leaked during the cylinder pipeline connection and disassembly process, and the oil collector includes: an oil collecting box connected to the placement platform, an oil outlet pipe vertically connected to the bottom of the oil collecting box, and a switch valve arranged in the oil outlet pipe.

[0016] Furthermore, the oil supply and return system includes a hydraulic oil tank fixed on the traveling chassis, a hydraulic pump station and a valve group fixed on the hydraulic oil tank, and an oil pipe connecting the hydraulic oil tank, the hydraulic pump station, the valve group and the oil cylinder; the oil pipe is used to allow the hydraulic oil in the hydraulic oil tank to enter the oil cylinder, and the hydraulic oil in the oil cylinder flows back to the hydraulic oil tank; the hydraulic pump station and the valve group are respectively connected to the controller, and the valve group is used to control the direction, speed and pressure of the hydraulic oil flowing between the hydraulic components.

[0017] Furthermore, the control device also includes a plurality of gratings which are separately arranged on the placement platform and the mobile platform; the plurality of gratings are respectively connected to the controller to cooperate with the placement platform and the mobile platform to enclose a working area.

[0018] Furthermore, the control device also includes a multi-color warning light arranged on the mounting bracket; the multi-color warning light is used to display different working states of the cylinder assembly pre-adjustment device through different colors.

[0019] The utility model has the following beneficial effects:

[0020] The utility model discloses a hydraulic cylinder assembly pre-adjusting device, in which the movable device is rollingly supported on the workshop floor and can be moved to each complete machine assembly station in each workshop under the action of the control device, thereby ensuring that the hydraulic cylinder assembly pre-adjusting device of the utility model can be located beside the complete machine assembly station when performing hydraulic cylinder adjustment operations, thereby reducing the multiple transportations of hydraulic cylinders, and the assembly can be performed immediately after the adjustment of one hydraulic cylinder is completed, so that the hydraulic cylinder assembly pre-adjustment and the final assembly are connected more smoothly, which is particularly suitable for the production of bench-type gravity center mechanical products, and ultimately improves the overall assembly operation efficiency and reduces the labor intensity of operators; during pre-adjustment, after the oil supply and return system is connected to the hydraulic cylinder to be adjusted, the hydraulic oil can be adjusted under the action of the control device. It circulates between the oil supply and return system and the cylinder, and then can fully extend and retract the cylinder, so that the air in the cylinder barrel can be emptied through the full extension and retraction of the cylinder, and the state of the cylinder on the cylinder assembly pre-adjustment device is consistent with the actual state on the complete product, thereby solving the safety problem caused by cylinder creeping or trembling when the cylinder is extended and retracted for the first time during product debugging; during the cylinder assembly pre-adjustment, the hydraulic valves such as the balance valve of the complete product are installed, so that after the cylinder reaches the preset working length, when no new hydraulic oil flows in, the cylinder can maintain a rigid state and the length will not change, thereby solving the safety problem caused by the cylinder becoming shorter due to the gravity of other components after the cylinder is assembled.

[0021] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 This is a schematic diagram of the main structure of the oil cylinder assembly pre-adjustment device of the preferred embodiment of the utility model;

[0024] Figure 2 yes Figure 1 Left view of

[0025] Figure 3 yes Figure 1 Top view of the .

[0026] Legend

[0027] 10. Mobile device; 11. Driving chassis; 12. Mounting bracket; 13. Power battery pack; 14. Track; 20. Fixed clamp group; 21. Placing platform; 22. First clamping assembly; 30. Mobile clamp group; 31. Mobile platform; 32. Second clamping assembly; 40. Oil supply and return system; 41. Hydraulic oil tank; 42. Hydraulic pump station; 43. Valve group; 44. Oil pipe; 50. Control device; 52. Host computer; 53. Barcode scanner; 54. Remote control; 55. Length sensor; 56. Grating; 57. Multi-color warning light; 60. Oil collector. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0029] Reference Figure 1 The preferred embodiment of the utility model provides a cylinder assembly pre-adjustment device, comprising: a mobile device 10 that is rollably supported on the floor of a workshop, and a fixed clamp group 20 and a mobile clamp group 30 that are relatively spaced and arranged on the mobile device 10, an oil supply and return system 40, and a control device 50, wherein the mobile device 10 and the oil supply and return system 40 are respectively connected to the control device 50. The fixed clamp group 20 is fixedly arranged, and the mobile clamp group 30 is slidably arranged. The fixed clamp group 20 and the mobile clamp group 30 are used to relatively clamp the two ends of the cylinder to be pre-adjusted, and the mobile clamp group 30 is used to slide relative to the fixed clamp group 20 under the extension and contraction of the cylinder. The oil supply and return system 40 is used to be connected to the inlet and outlet oil circuits of the cylinder, so that the hydraulic oil circulates between the oil supply and return system 40 and the cylinder under the action of the control device 50, thereby making the cylinder fully extended and fully retracted and exhausted for multiple times, and the oil supply and return system 40 is also used to cooperate with the control device 50 to accurately adjust the assembly length of the cylinder, so that the cylinder maintains a rigid state of stable length after being connected to the hydraulic valve of the hydraulic system of the complete product.

[0030] The operation process of the oil cylinder assembly pre-adjustment device of the utility model is as follows: first, according to the requirements of the whole machine assembly, the control device 50 controls the moving device 10 to move to the assembly station of the oil cylinder that needs to be assembled; then, the control device 50 starts the control program stored therein (the pressure required for the extension and retraction of the oil cylinder, the flow rate of hydraulic oil, the number of full extensions and retractions, the final assembly length of the oil cylinder obtained according to the actual situation of the early assembly, etc.) according to the information of the whole machine product and the corresponding oil cylinder; then, the oil cylinder is hoisted onto the oil cylinder assembly pre-adjustment device, so that one end of the oil cylinder is connected to the fixed clamp group 20, and the other end opposite to it is connected to the mobile clamp group 30. During the connection process, the mobile clamp group 30 can be manually pushed to move to ensure the adjustment of the position of the clamping components on the oil cylinder and the mobile clamp group 30; then, the hydraulic valves such as the balance valve corresponding to the oil cylinder in the hydraulic system of the whole machine product are assembled on the oil cylinder (if the hydraulic valve is not directly assembled and fixed on the oil cylinder, the hydraulic valve is fixed On the moving device 10, the hydraulic valve and the oil cylinder are connected by the hydraulic oil pipe of the product itself), and the hydraulic valve is also connected to the oil supply and return system 40, so that the hydraulic oil from the oil supply and return system 40 can flow into the oil cylinder, and the hydraulic oil from the oil cylinder can flow back to the oil supply and return system 40, so that after the oil cylinder reaches the specified length, when no new hydraulic oil flows in, the oil cylinder can maintain a rigid state and the length will not change; then, the oil supply and return system 40 starts to work, and the oil cylinder is extended and retracted to drive the mobile clamp group 30 to move on the moving device 10. After the full extension and full retraction times specified in the program are completed and the exhaust is completed, the oil cylinder is extended. After the oil cylinder is extended to a length close to the required length, under the control of the control device 50, the oil cylinder reduces the extension speed until it reaches the specified length and stops; finally, the staff disassembles the adjusted oil cylinder from the oil cylinder assembly pre-adjustment device and assembles it on the complete product, thereby completing the pre-adjustment of the oil cylinder.

[0031] The hydraulic cylinder assembly pre-adjusting device of the present invention has a moving device 10 which is rolled and supported on the workshop floor, and can be moved to each complete machine assembly station in each workshop under the action of the control device 50, thereby ensuring that the hydraulic cylinder assembly pre-adjusting device of the present invention can be located next to the complete machine assembly station when performing hydraulic cylinder adjustment operations, thereby reducing the multiple transportations of hydraulic cylinders, and assembly can be performed immediately after the adjustment of one hydraulic cylinder is completed, so that the hydraulic cylinder assembly pre-adjustment and final assembly are connected more smoothly, which is particularly suitable for the production of bench-type center of gravity mechanical products, and ultimately improves the overall assembly operation efficiency and reduces the labor intensity of operators; during pre-adjustment, after the oil supply and return system 40 is connected to the hydraulic cylinder to be adjusted, the control device 50 can be used to The hydraulic oil circulates between the oil supply and return system 40 and the cylinder, thereby fully extending and retracting the cylinder, thereby exhausting the air in the cylinder barrel through the full extension and retraction of the cylinder, and the state of the cylinder on the cylinder assembly pre-adjustment device is consistent with the actual state on the complete product, thereby solving the safety problem caused by the cylinder creeping or shaking when the cylinder is extended and retracted for the first time during product debugging; during the cylinder assembly pre-adjustment, the hydraulic valves such as the balance valve of the complete product are installed, so that after the cylinder reaches the preset working length, when no new hydraulic oil flows in, the cylinder can maintain a rigid state and the length will not change, thereby solving the safety problem caused by the cylinder becoming shorter due to the gravity of other components after the cylinder is assembled.

[0032] Alternatively, if Figure 1 and 2 As shown, the control device 50 includes a controller fixed on the fixed clamp group 20, a host computer 52 and a barcode scanner 53. The host computer 52, the barcode scanner 53, the mobile device 10 and the oil supply and return system 40 are respectively connected to the controller. The barcode scanner 53 is used to input the whole machine product information and the cylinder information so that the controller can control the oil supply and return system 40 to act accordingly. In this optional scheme, the host computer 52 is an integrated touch screen, through which the whole machine product model, coding information and cylinder code, the final length of the cylinder adjustment, the number of full extension (contraction) of the cylinder and other information that need to be assembled with the cylinder can be input, modified and displayed, so as to realize the programmed update and iteration of on-site experience, reduce the requirements of the operation on the experience of the operator, and improve the operation efficiency; the barcode scanner is fixed next to the integrated touch screen, and can scan the code to input the whole machine product model, coding information and cylinder code that need to be assembled with the cylinder.

[0033] Alternatively, if Figure 1As shown, the control device 50 also includes a remote controller 54 connected to the controller. The mobile device 10 includes a running chassis 11 that is rolled and supported on the workshop floor, and a mounting bracket 12 that is vertically supported on the running chassis 11, and the running chassis 11 is electrically connected to the remote controller 54. The fixed clamp group 20 is fixed to the top of the mounting bracket 12, and the mobile clamp group 30 is slidably supported on the running chassis 11. Under the action of the controller, the remote controller 54 can realize the functions of the mobile device 10 such as forward, steering, reverse, and braking, so as to ensure that the mobile device 10 can move between the assembly stations of each complete machine in each factory building as needed, thereby improving the overall assembly efficiency and reducing the labor intensity of the staff.

[0034] Preferably, if Figure 2 As shown, the mobile device 10 also includes a power battery pack 13 fixed on the travel chassis 11. The power battery pack 13 is respectively connected to the travel chassis 11, the oil supply and return system 40 and the control device 50 to supply power to them accordingly. In this preferred solution, the power battery pack 13 can provide the electric energy required for the movement and operation of the oil cylinder assembly pre-adjustment device, reduce the dependence of the oil cylinder assembly pre-adjustment device on external power sources, have no restrictions on the use site, improve the flexibility of the use of the oil cylinder assembly pre-adjustment device, and when the electric energy is insufficient, it can be charged through the power supply in the factory.

[0035] Alternatively, if Figure 1 and Figure 3 As shown, the fixed clamp group 20 includes a placement platform 21 fixed to the top of the mounting bracket 12, and a first clamping assembly 22 fixed to the placement platform 21. The mobile device 10 also includes a track 14 arranged on the travel chassis 11 and extending along the extension direction of the oil cylinder. The mobile clamp group 30 includes a mobile platform 31 slidably supported on the track 14, and a second clamping assembly 32 fixed on the mobile platform 31. The second clamping assembly 32 and the first clamping assembly 22 are used to relatively clamp the two ends of the oil cylinder. In this optional solution, the placement platform 21 is about 800mm above the ground, which is convenient for operators to connect the oil cylinder and the oil cylinder assembly pre-adjustment device in a standing state; the track 14 is fixed on the travel chassis 11 to support the movement of the mobile platform 31; the mobile platform 31 is supported on the track 14, one end of the oil cylinder is fixed to the mobile platform 31 through the second clamping assembly 32, and the mobile platform 31 slides on the track 14 when the oil cylinder is extended. In this optional solution, the first clamping assembly 22 is fixed on the placement platform 21, and the second clamping assembly 32 is fixed on the mobile platform 31, which is used to clamp the oil cylinder and ensure that the center lines of the connecting holes at both ends of the oil cylinder coincide with the zero lines on the placement platform 21 and the mobile platform 31, so as to ensure that the length measuring tool can measure the actual length of the oil cylinder. In this optional solution, the combination of the placement platform 21, the track 14, and the mobile platform 31 ensures that the oil cylinder moves in a predetermined direction and range during the extension and retraction process, thereby avoiding damage to the oil cylinder.

[0036] Preferably, if Figure 1 As shown, the control device 50 also includes a length sensor 55 fixed on the placement platform 21. The length sensor 55 is connected to the controller to accurately measure the telescopic length of the oil cylinder. The length sensor 55 is connected to the placement platform 21, and is used to measure the actual length of the oil cylinder adjustment and feed it back to the integrated touch screen, so that the integrated touch screen controls the action of the oil supply and return system 40 according to the comparison between the actual length of the oil cylinder and the target length, and realizes the speed control and stop of the extension and retraction of the oil cylinder. In this optional scheme, the first clamping assembly 22 and the second clamping assembly 32 are both three-claw structures, so that when the oil cylinder is connected to the oil cylinder assembly pre-adjustment device, the center line of the connection hole at both ends of the oil cylinder coincides with the zero line on the placement platform 21 and the mobile platform 31, which provides a basis for accurately adjusting the length of the oil cylinder. The length sensor 55 can measure the actual length of the oil cylinder in real time, solving the problem of low efficiency and high labor intensity of the final assembly connection operation of the oil cylinder, which originally required multiple adjustments to the length of the oil cylinder or the posture of other components to meet the requirements.

[0037] Furthermore, if Figure 1 As shown, the oil cylinder assembly pre-adjustment device also includes an oil collector 60 for collecting the hydraulic oil leaked during the connection and disassembly of the oil cylinder pipeline. The oil collector 60 includes: an oil collecting box connected to the placement platform 21, an oil outlet pipe vertically connected to the bottom of the oil collecting box, and a switch valve arranged in the oil outlet pipe. In this optional solution, the oil collecting box is used to collect the hydraulic oil leaked during the connection and disassembly of the oil cylinder pipeline. When the collected oil reaches a certain amount, the collected oil is released through the switch valve for centralized disposal, thereby avoiding contamination to other places such as the factory floor.

[0038] Alternatively, if Figure 1 and Figure 3As shown, the oil supply and return system 40 includes a hydraulic oil tank 41 fixed on the travel chassis 11, a hydraulic pump station 42 and a valve group 43 fixed on the hydraulic oil tank 41, and an oil pipe 44 connecting the hydraulic oil tank 41, the hydraulic pump station 42, the valve group 43 and the oil cylinder. The oil pipe 44 is used to allow the hydraulic oil in the hydraulic oil tank 41 to enter the oil cylinder, and the hydraulic oil in the oil cylinder flows back to the hydraulic oil tank 41. The hydraulic pump station 42 and the valve group 43 are respectively connected to the controller, and the valve group 43 is used to control the direction, speed and pressure of the hydraulic oil flowing between the hydraulic components. The hydraulic pump station 42 is powered by the power battery pack 13, draws hydraulic oil from the hydraulic oil tank 41, and converts electrical energy into hydraulic energy; the hydraulic oil tank 41 is fixed on the travel chassis 11, and plays the role of recovering, storing, cooling, and filtering hydraulic oil. When the cylinder is equipped with a pre-adjusting device and used for a period of time, if it is found that the hydraulic oil level is lower than the lowest scale of the hydraulic oil tank 41, the hydraulic oil is added to the hydraulic oil tank 41; the valve group 43 is used to control the direction, speed, and pressure of the hydraulic oil flowing between the hydraulic components; various oil pipes are used to connect the hydraulic pump station 42, the hydraulic oil tank 41, the valve group 43, the cylinder, etc., to realize the transmission of hydraulic oil between the hydraulic components.

[0039] Alternatively, if Figure 2 As shown, the control device 50 also includes a plurality of gratings 56 disposed on the placement platform 21 and the mobile platform 31. The plurality of gratings 56 are respectively connected to the controller to cooperate with the placement platform 21 and the mobile platform 31 to enclose the working area. When the oil cylinder is in the process of extension and retraction, it can be seen that the fence formed by the red light encloses the placement platform 21, the mobile platform 31, the track 14 and other areas. When an operator mistakenly enters this area, the grating 56 transmits information to the integrated touch screen, so that the integrated touch screen controls the oil cylinder to stop extending and retracting to avoid safety problems.

[0040] Alternatively, if Figure 2 As shown, the control device 50 also includes a multi-color warning light 57 disposed on the mounting bracket 12. The multi-color warning light 57 is used to display different working states of the oil cylinder assembly pre-adjustment device through different colors. When working, three different light colors are displayed according to the different working states of the oil cylinder assembly pre-adjustment device, to remind the operator that the oil cylinder assembly pre-adjustment device is moving, performing oil cylinder adjustment operation, the oil cylinder adjustment operation has been completed and qualified, abnormality, etc.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pre-adjusting device for oil cylinder assembly, characterized in that: include: A mobile device (10) is rollably supported on the floor of a workshop, and a fixed clamp group (20) and a mobile clamp group (30) are relatively spaced apart on the mobile device (10), an oil supply and return system (40) and a control device (50), wherein the mobile device (10) and the oil supply and return system (40) are respectively connected to the control device (50); The fixed clamp group (20) is fixedly arranged, and the movable clamp group (30) is slidably arranged. The fixed clamp group (20) and the movable clamp group (30) are used to relatively clamp two ends of the oil cylinder to be pre-adjusted, and the movable clamp group (30) is used to slide relative to the fixed clamp group (20) under the extension and contraction of the oil cylinder; The oil supply and return system (40) is used to be connected to the oil inlet and outlet passages of the oil cylinder so that, under the action of the control device (50), the hydraulic oil circulates between the oil supply and return system (40) and the oil cylinder, thereby allowing the oil cylinder to be fully extended and fully retracted and exhausted multiple times. The oil supply and return system (40) is also used to cooperate with the control device (50) to accurately adjust the assembly length of the oil cylinder so that the oil cylinder maintains a rigid state of stable length after being connected to the hydraulic valve of the hydraulic system of the complete product.

2. The oil cylinder assembly pre-adjustment device according to claim 1, characterized in that: The control device (50) comprises a controller fixed on the fixing clamp group (20), a host computer (52) and a barcode scanning gun (53); The host computer (52), the barcode scanning gun (53), the mobile device (10) and the oil supply and return system (40) are respectively connected to the controller; The barcode scanner (53) is used to input the whole machine product information and oil cylinder information so that the controller can control the oil supply and return system (40) to operate accordingly.

3. The oil cylinder assembly pre-adjustment device according to claim 2, characterized in that: The control device (50) also includes a remote controller (54) connected to the controller; The mobile device (10) comprises a running chassis (11) which is supported on the workshop floor in a rolling manner, and a mounting bracket (12) which is vertically supported on the running chassis (11), and the running chassis (11) is electrically connected to a remote controller (54); The fixed clamp group (20) is fixed to the top end of the mounting bracket (12), and the movable clamp group (30) is slidably supported on the travel chassis (11).

4. The oil cylinder assembly pre-adjustment device according to claim 3, characterized in that: The mobile device (10) further comprises a power battery pack (13) fixed on the driving chassis (11); The power battery pack (13) is respectively connected to the travel chassis (11), the oil supply and return system (40) and the control device (50) to provide corresponding power to them.

5. The oil cylinder assembly pre-adjustment device according to claim 3, characterized in that: The fixing clamp assembly (20) comprises a placement platform (21) fixed to the top of the mounting bracket (12), and a first clamping assembly (22) fixed to the placement platform (21); The mobile device (10) further comprises a track (14) arranged on the travel chassis (11) and extending along the extension and retraction direction of the oil cylinder. The mobile clamping assembly (30) comprises a mobile platform (31) slidably supported on the track (14), and a second clamping assembly (32) fixed on the mobile platform (31). The second clamping assembly (32) and the first clamping assembly (22) are used to relatively clamp the two ends of the oil cylinder.

6. The oil cylinder assembly pre-adjustment device according to claim 5, characterized in that: The control device (50) further comprises a length sensor (55) fixed on the placement platform (21); The length sensor (55) is connected to the controller to accurately measure the telescopic length of the oil cylinder.

7. The oil cylinder assembly pre-adjustment device according to claim 5, characterized in that: The oil cylinder assembly pre-adjustment device also includes an oil collector (60) for collecting hydraulic oil leaked during the connection and disassembly process of the oil cylinder pipeline. The oil collector (60) includes: An oil collecting box connected to the placement platform (21), an oil outlet pipe vertically connected to the bottom of the oil collecting box, and a switch valve arranged in the oil outlet pipe.

8. The oil cylinder assembly pre-adjustment device according to claim 3, characterized in that: The oil supply and return system (40) comprises a hydraulic oil tank (41) fixed on the travel chassis (11), a hydraulic pump station (42) and a valve group (43) fixed on the hydraulic oil tank (41), and an oil pipe (44) connecting the hydraulic oil tank (41), the hydraulic pump station (42), the valve group (43) and the oil cylinder; The oil pipe (44) is used to allow the hydraulic oil in the hydraulic oil tank (41) to enter the oil cylinder, and the hydraulic oil in the oil cylinder to flow back to the hydraulic oil tank (41); The hydraulic pump station (42) and the valve group (43) are respectively connected to the controller, and the valve group (43) is used to control the direction, speed and pressure of the hydraulic oil flowing between the hydraulic components.

9. The oil cylinder assembly pre-adjustment device according to claim 3, characterized in that: The control device (50) further comprises a plurality of gratings (56) which are respectively arranged on the placement platform (21) and the moving platform (31); The plurality of gratings (56) are respectively connected to the controller so as to cooperate with the placement platform (21) and the moving platform (31) to enclose an operating area.

10. The oil cylinder assembly pre-adjustment device according to claim 3, characterized in that: The control device (50) further comprises a multi-color warning light (57) arranged on the mounting bracket (12); The multicolor warning light (57) is used to display different working states of the oil cylinder assembly pre-adjusting device through different colors.

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