Clamping device for transferring oil damper

Abstract

The utility model discloses a clamping device for transferring an oil damper, relates to the technical field of clamping devices, and aims to solve the problems of high labor intensity and low operation efficiency of manual carrying during maintenance operation of the oil damper. The number of the linear guide rails is two, each linear guide rail is provided with two pairs of sliding blocks, the two linear guide rails are fixed to the lower surface of the machine base, the ball screw is located between the two linear guide rails and rotationally connected with the machine base, the servo motor is fixedly connected with the machine base, and the output end of the servo motor is in transmission connection with the ball screw. Each set of pneumatic clamp is fixedly connected with the sliding blocks at the same ends of the two linear guide rails, and the two sets of pneumatic clamps are connected with the ball screw through lead screw nuts. According to the clamping device, the pneumatic clamp is adopted and matched with the mechanical arm to carry and transfer the oil damper, automatic operation of the intelligent test bed of the oil damper can be achieved, the operation efficiency is improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a clamping device for transporting an oil pressure shock absorber. Background Art

[0002] In the field of rail transportation, hydraulic shock absorbers are key components for improving the stability, comfort and safety of locomotives and vehicles at high speeds. Hydraulic shock absorbers are mainly composed of rubber joints, oil storage cylinders, piston rods, pistons, dust covers, etc. After assembly, tension and compression tests are required to determine whether the assembled hydraulic shock absorbers are qualified. This process is a performance test of hydraulic shock absorbers.

[0003] The existing performance test process of the hydraulic shock absorber is as follows: the operator carries the hydraulic shock absorber to be tested to the test bench, and fixes the two ends of the hydraulic shock absorber on the two clamping blocks of the test bench, one of which is connected to the eccentric wheel mechanism of the test bench to apply the test load to the hydraulic shock absorber, and the other clamping block is installed on the screw drive shaft. The distance between the two clamping blocks can be adjusted by turning the hand wheel to install hydraulic shock absorbers of different lengths.

[0004] During the test of the existing hydraulic shock absorber test bench, operators need to manually carry and accurately place the hydraulic shock absorber at the corresponding installation position of the test bench. The weight of the hydraulic shock absorber of a locomotive or passenger car can reach up to 80kg, the length can reach up to 1.5m, and the number of hydraulic shock absorbers to be inspected and repaired every day can reach 100. The traditional hydraulic shock absorber performance test and maintenance process has the problems of high labor intensity and low operating efficiency for operators. Utility Model Content

[0005] The utility model aims to provide a clamping device for transporting a hydraulic shock absorber, which is used to solve the problems of high labor intensity and low operation efficiency in manual handling during the maintenance of the hydraulic shock absorber.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Provided is a clamping device for transporting a hydraulic shock absorber, characterized in that it comprises a machine base, a servo motor, a pneumatic clamp, and a linear guide rail and a ball screw arranged in parallel;

[0008] There are two linear guides, each of which is provided with two pairs of sliders, the two linear guides are fixed to the lower surface of the machine base, the ball screw is located between the two linear guides and is rotatably connected to the machine base, the servo motor is fixedly connected to the machine base, and the output end of the servo motor is transmission-connected to the ball screw, there are two sets of pneumatic clamps, each set of pneumatic clamps is fixedly connected to the sliders at the same end of the two linear guides, the two sets of pneumatic clamps are connected to the ball screws via screw nuts, and the pneumatic clamps are externally connected to an air source.

[0009] The two linear guides provided in the clamping device for transporting the oil-pressure shock absorber provided by the utility model can adjust the pneumatic clamp in the direction of the linear guide, and the ball screw and servo motor provided can realize the automatic adjustment of the position of the pneumatic clamp. The pneumatic clamp can clamp and fix the oil-pressure shock absorber. The screw nut connected with the pneumatic clamp and the ball screw can realize the adjustment of the distance between the two sets of pneumatic clamps, which can adapt to the clamping and transportation of oil-pressure shock absorbers with different length requirements. The above-mentioned clamping device adopts the pneumatic clamp to clamp and release the oil-pressure shock absorber, and cooperates with the mechanical arm to carry and transfer the oil-pressure shock absorber, which can realize the automated operation of the oil-pressure shock absorber intelligent test bench, improve the operation efficiency, and reduce the labor intensity of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Other and more objects and advantages will become apparent from the following description. The accompanying drawings are intended to show examples of the various forms of the present invention. The accompanying drawings should not be considered as limitations showing all the ways in which the present invention can be made and adopted. It is obvious that the various components of the present invention can be changed and replaced. The present invention also lies in sub-combinations and sub-systems of the elements introduced, and in methods of using them.

[0011] In the attached picture:

[0012] Figure 1 It is a schematic diagram of a clamping device for transporting a hydraulic shock absorber in an embodiment of the utility model;

[0013] Figure 2 for Figure 1 A side view of a clamping device for transporting an oil pressure shock absorber;

[0014] Figure 3 for Figure 2 A partial cross-sectional view of a clamping device for transporting an oil pressure shock absorber;

[0015] Figure 4 for Figure 1 A side view of a clamping device for transporting an oil pressure shock absorber;

[0016] Figure 5This is the pneumatic principle diagram of the wide air gripper.

[0017] Reference numerals:

[0018] 1-connecting seat; 2-machine base; 3-linear guide; 4-servo motor; 5-coupling; 6-ball screw; 7-screw nut; 8-slide plate; 9-connecting plate; 10-wide air claw; 11-clamp; 12-protective cover; 21-air source; 22-pneumatic two-way fitting; 23-two-position five-way solenoid valve; 24-muffler; 25-digital pressure switch; 26-exhaust throttle valve; 27-finger cylinder. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] like Figures 1 to 5As shown, the clamping device for transporting oil pressure shock absorber provided by the utility model comprises a machine base 2, a servo motor 4, a pneumatic clamp, and parallel linear guide rails 3 and a ball screw 6; there are two linear guide rails 3, each linear guide rail 3 is provided with two pairs of sliders, the two linear guide rails 3 are fixed to the lower surface of the machine base 2, the ball screw 6 is located between the two linear guide rails 3, and is rotatably connected to the machine base 2, the servo motor 4 is fixedly connected to the machine base 2, the output end of the servo motor 4 is transmission-connected to the ball screw 6, there are two sets of pneumatic clamps, each set of pneumatic clamps is fixedly connected to the sliders at the same end of the two linear guide rails 3, and the two sets of pneumatic clamps are threadedly connected to the ball screw 6 through the screw nut 7. The screw nut 7 is divided into a left-hand screw nut and a right-hand screw nut.

[0023] When implementing:

[0024] The action process of the pneumatic clamp is as follows:

[0025] 1) Grasping action of hydraulic shock absorber

[0026] The servo motor 4 drives the ball screw 6 to rotate, driving the left and right slide plates 8 to move toward or away from each other along the linear guide 3, so as to adjust the spacing of the wide air grippers 10. When the spacing of the wide air grippers 10 reaches the set position, the two-position five-way solenoid valve 23 of the air circuit system is opened, and the air supply circuit on the left side is connected. The finger cylinder 27 inside the wide air gripper 10 is pushed out, and the wide air gripper 10 produces a clamping action. After the oil pressure shock absorber is clamped by the wide air gripper 10, the pressure of the air circuit system increases. When the pressure increases to the set value, the finger cylinder is not fully extended, and the system determines that the grasping action is completed.

[0027] 2) Release action of hydraulic shock absorber

[0028] The two-position five-way solenoid valve 23 of the air circuit system is actuated, the right-side air circuit is connected, the finger cylinder 27 inside the wide air gripper 10 contracts, and the wide air gripper 10 performs a release action; after the wide air gripper 10 of the oil pressure shock absorber is completely released, the pressure of the air circuit system increases, and after the pressure reaches the set value, the system determines that the release action is completed.

[0029] 3) Wide-type air gripper 10 spacing adjustment action

[0030] When the pneumatic clamp is started for the first time, the servo motor 4 rotates forward or reverse until the wide air grippers 10 move inward or outward at the same time. A photoelectric sensor is placed at a specific position. When the wide air grippers 10 reach the set position, the system can determine that the pneumatic grippers are in the initial position. By controlling the number of rotations of the servo motor 4, the spacing between the wide air grippers 10 can be accurately adjusted.

[0031] 4) Relationship between gas system composition and action

[0032] The operation process of the air circuit system is as follows: high-pressure gas supplies air to the finger cylinder 27 through the pneumatic two-way component 22 composed of a filter and a pressure regulating valve. The air circuit system adopts a two-position five-way solenoid valve 23 to control the extension / contraction action of the finger cylinder 27. When the left position of the two-position five-way solenoid valve 23 is connected, the finger cylinder 27 extends; when the right position of the two-position five-way solenoid valve 23 is connected, the finger cylinder 27 contracts. The muffler 24 is used to eliminate the exhaust noise of the two-position five-way solenoid valve 23.

[0033] The digital pressure switch 25 is used to collect the pressure signal of the air circuit system. During the clamping action, when the air circuit pressure signal reaches the set value and the finger cylinder 27 is not fully extended, the system determines that the clamping action of the oil pressure shock absorber is completed; during the release action, when the air circuit pressure signal reaches the set value and the finger cylinder 27 is fully retracted, the system determines that the release action of the oil pressure shock absorber is completed; during the clamping and releasing action, if the pressure value of the digital pressure switch 25 does not reach the set value for a long time, the system determines that there is a leak in the air circuit.

[0034] The exhaust throttle valve 26 can adjust the exhaust speed of the two-position five-way solenoid valve 23, thereby realizing the regulation of the action speed of the finger cylinder 27.

[0035] The two linear guides provided in the clamping device for transporting the oil-pressure shock absorber provided by the utility model can adjust the pneumatic clamp in the direction of the linear guide, and the ball screw and servo motor provided can realize the automatic adjustment of the position of the pneumatic clamp. The pneumatic clamp can clamp and fix the oil-pressure shock absorber. The screw nut connected with the pneumatic clamp and the ball screw can realize the adjustment of the distance between the two sets of pneumatic clamps, which can adapt to the clamping and transportation of oil-pressure shock absorbers with different length requirements. The above-mentioned clamping device adopts the pneumatic clamp to clamp and release the oil-pressure shock absorber, and cooperates with the mechanical arm to carry and transfer the oil-pressure shock absorber, which can realize the automated operation of the oil-pressure shock absorber intelligent test bench, improve the operation efficiency, and reduce the labor intensity of the operators.

[0036] As an implementable embodiment, the pneumatic clamp includes a slide plate 8, a connecting plate 9, a wide air gripper 10 and a clamping plate 11; the slide plate 8 is fixedly connected to the slider of the linear guide 3, the wide air gripper 10 is fixedly connected to the slide plate 8 through the connecting plate 9, the forward / reverse nut is fixedly connected to the slide plate 8, the two clamping plates 11 are symmetrically fixed at the output end of the wide air gripper 10, and the wide air gripper 10 is connected to an external air source 21.

[0037] The servo motor 4 can drive the slide plate 8 to move toward or away from each other through the ball screw 6 to adjust the spacing distance of the pneumatic clamp. The wide air claw 10 can control the opening or tightening of the clamping plate 11 through the external air source 21, thereby clamping the oil pressure shock absorber. Further, the servo motor 4 is connected to the ball screw 6 through the coupling 5.

[0038] As an implementable embodiment, the clamping plate 11 further includes a clamping portion; the clamping portion is disposed on the inner side of the end of the clamping plate 11 away from the wide air gripper 10, and the clamping portion includes two fixing blocks, and the two fixing blocks form a V-shaped structure.

[0039] The V-shaped clamping part can better adapt to the cylindrical oil shock absorber to clamp and fix the oil shock absorber. Alternatively, a fixing block with a V-shaped groove in the middle can be directly provided.

[0040] As an implementable embodiment, the clamping device further includes a protective cover 12 ; the protective cover 12 is fixed on both sides of the machine base 2 , and covers the linear guide rail 3 and the ball screw 6 therein.

[0041] The provision of the protective cover 12 can provide protection for the linear guide rail 3 and the ball screw 6, thereby extending the service life of the clamping device.

[0042] As an implementable embodiment, the clamping device further includes a connecting seat 1 ; the connecting seat 1 is fixed on the upper surface of the machine base 2 , and the clamping device is externally connected to a robotic arm via the connecting seat 1 .

[0043] The setting of the connecting seat 1 enables the clamping device to be connected to an external mechanical arm to realize automatic clamping and transportation of the hydraulic shock absorber, thereby improving the maintenance efficiency of the hydraulic shock absorber and freeing up manual labor.

[0044] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0045] Of course, various changes and substitutions can be made to the above description, and all of these changes and substitutions are within the spirit and scope of the present invention. Therefore, the present invention should not be limited except for the attached claims and their equivalents.

Claims

1. A clamping device for transporting a hydraulic shock absorber, characterized in that: It includes a machine base, a servo motor, a pneumatic clamp, and a linear guide rail and a ball screw arranged in parallel; There are two linear guides, each of which is provided with two pairs of sliders, the two linear guides are fixed to the lower surface of the machine base, the ball screw is located between the two linear guides and is rotatably connected to the machine base, the servo motor is fixedly connected to the machine base, and the output end of the servo motor is transmission-connected to the ball screw, there are two sets of pneumatic clamps, each set of pneumatic clamps is fixedly connected to the sliders at the same end of the two linear guides, the two sets of pneumatic clamps are connected to the ball screws via screw nuts, and the pneumatic clamps are connected to an external air source.

2. The clamping device for transporting a hydraulic shock absorber according to claim 1, characterized in that: The pneumatic clamp comprises a slide plate, a connecting plate, a wide air gripper and a clamping plate; The slide plate is fixedly connected to the slider of the linear guide rail, the wide air gripper is fixedly connected to the slide plate through the connecting plate, the screw nut includes a left-handed / right-handed screw nut, the slide plate is fixedly connected to the left-handed / right-handed screw nut, the two clamps are symmetrically fixed at the output end of the wide air gripper, and the wide air gripper is connected to an external air source.

3. The clamping device for transporting a hydraulic shock absorber according to claim 2, characterized in that: The clamping plate also includes a clamping portion; The clamping portion is arranged on the inner side of the clamping plate away from one end of the wide air gripper, and the clamping portion includes two fixing blocks, and the two fixing blocks form a V-shaped structure.

4. The clamping device for transporting a hydraulic shock absorber according to claim 1, characterized in that: The clamping device also includes a protective cover; The protective cover is fixed on both sides of the machine base, and the linear guide rail and the ball screw cover are arranged inside.

5. The clamping device for transporting a hydraulic shock absorber according to claim 1, characterized in that: The clamping device also includes a connecting seat; The connecting seat is fixed on the upper surface of the machine base, and the clamping device is externally connected to a mechanical arm via the connecting seat.

Images