Inner wall cutting equipment for repairing hydraulic cylinder

Abstract

Inner wall cutting equipment for hydraulic cylinder repair belongs to the technical field of hydraulic cylinder repair and comprises a workbench, a groove is formed in the upper surface of the workbench, a boring machine body with a walking mechanism is slidably mounted in the groove, a fixing plate is fixedly mounted on the right side of the upper surface of the workbench, and a chuck is fixedly mounted on the left surface of the fixing plate. A carrying vehicle is slidably arranged in the groove, four telescopic columns are fixedly installed on the upper surface of the carrying vehicle, a supporting plate is fixedly installed among the top ends of the four telescopic columns, a plurality of V-shaped supporting plates are fixedly installed on the upper surface of the supporting plate, and a cylinder barrel needing to be repaired is placed among the V-shaped supporting plates in a lifting mode. A lifting adjusting device is installed between the lower surface of the V-shaped supporting plate and the upper surface of the carrying vehicle, the outer surface of the supporting plate is fixedly connected with a connecting rope, and the end, away from the supporting plate, of the connecting rope is fixedly connected with a laser axis positioning device. And the overall working efficiency during cylinder barrel repairing is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic cylinder repair, and in particular relates to inner wall cutting equipment for repairing a hydraulic cylinder. Background Art

[0002] The cylinder barrel is an important part of the hydraulic cylinder. The quality of the cylinder barrel directly affects the service life of the hydraulic cylinder. In the worn cylinder barrel, the inner wall scratches account for a large proportion, which leads to oil leakage in the hydraulic cylinder and the working pressure cannot meet the requirements. Therefore, the remanufacturing and repair of the cylinder barrel is mainly to repair the inner wall scratches. When repairing the inner wall scratches of the cylinder barrel, the inner wall of the cylinder barrel can be bored by a boring machine to eliminate the inner wall scratches, thereby ensuring its dimensional accuracy and other technical requirements.

[0003] After searching, the Chinese authorized patent in the relevant field has the patent publication number: CN216065622U, and the patent name is: A hydraulic cylinder inner wall repair device and machine tool, whose structure specifically includes a box body, a guide sleeve is provided at the front of the box body, a boring bar is installed through the middle of the box body and the guide sleeve, a working head is provided at the front end of the boring bar, and a clamping device is provided at the bottom of the box body. The clamping device includes an oil cylinder and clamping blocks provided at the front and rear of the box body, and wedge blocks or levers are provided at both ends of the oil cylinder. A screw-nut mechanism or a gear-rack mechanism and its power source are provided between the boring bar and the box body.

[0004] The above-mentioned hydraulic cylinder inner wall repair device and machine tool in the prior art first use a chuck to clamp and fix the cylinder end of the hydraulic cylinder before repair. When placing, it is not convenient to adjust the position of the cylinder up and down to keep its axis at the axis of the chuck. Since the large cylinder is heavy, it is necessary to use a crane or other lifting device to lift the cylinder, and then manually adjust it for positioning and clamping. The operation is not only time-consuming and labor-intensive, but also affects the repair efficiency. For this reason, another inner wall cutting device for hydraulic cylinder repair is provided to solve the above technical problems. Utility Model Content

[0005] In view of the problems of positioning difficulty, time-consuming and labor-intensive operation, and affecting the repair efficiency when positioning and clamping between the cylinder barrel to be repaired and the chuck in the prior art hydraulic cylinder inner wall repair device and machine tool, the utility model provides an inner wall cutting device for repairing a hydraulic cylinder, by setting a lifting and adjusting device between a carrier and a support plate with a V-shaped support plate, and setting a laser axis positioning device, before the end of the cylinder barrel is installed on the chuck, the cylinder barrel can be placed on the V-shaped support plate, and the laser axis positioning device is clamped at the left end of the inner cavity opening of the cylinder barrel, and the height of the cylinder barrel is adjusted by using the lifting and adjusting device. During the adjustment process, the laser irradiated on the chuck by the laser axis positioning device is used to determine whether the axis of the cylinder barrel is at the same horizontal position as the axis of the chuck, so that the positioning operation between the cylinder barrel and the chuck is more convenient and quick, thereby improving the overall work efficiency of the repair operation, and effectively solving the problems of positioning difficulty, time-consuming and labor-intensive operation, and affecting the repair work efficiency when positioning and clamping between the cylinder barrel and the chuck in the prior art hydraulic cylinder inner wall repair device and machine tool. Its specific technical scheme is as follows:

[0006] A hydraulic cylinder inner wall cutting equipment for repairing a hydraulic cylinder comprises a workbench, the upper surface of the workbench is provided with a groove, a boring machine body with a walking mechanism is slidably installed in the groove, a fixing plate is fixedly installed on the right side of the upper surface of the workbench, a chuck is fixedly installed on the left surface of the fixing plate, a carrier is slidably arranged in the groove, four telescopic columns are fixedly installed on the upper surface of the carrier, a supporting plate is fixedly installed between the top ends of the four telescopic columns, a plurality of V-shaped supporting plates are fixedly installed on the upper surface of the supporting plate, a cylinder barrel to be repaired is lifted and placed between the plurality of V-shaped supporting plates, a lifting and adjusting device is installed between the lower surface of the V-shaped supporting plate and the upper surface of the carrier, a connecting rope is fixedly connected to the outer surface of the supporting plate, a laser axis positioning device is fixedly connected to the end of the connecting rope away from the supporting plate, and the laser axis positioning device is clamped at the left end opening of the inner cavity of the cylinder barrel to be repaired.

[0007] In the above technical solution, two fixed blocks are symmetrically fixedly installed on the upper surface of the trolley, and the lifting and lowering adjustment device includes a positive and negative threaded rod rotatably installed between the two fixed blocks, a hand wheel is fixedly installed on the front end of the positive and negative threaded rod, and a moving block is symmetrically screwed on the outer surface of the positive and negative threaded rod, the lower surface of the moving block is in contact with the upper surface of the trolley, and a movable plate is rotatably installed on the top of the moving block, and an adapter block is rotatably installed on the end of the movable plate away from the moving block, and the adapter block is fixedly installed on the lower surface of the support plate.

[0008] In the above technical solution, the vehicle is L-shaped, and a hydraulic lifting column is fixedly installed between the right surface of the vehicle and the fixed plate.

[0009] In the above technical solution, rails are symmetrically fixedly installed in the grooves, and four V-shaped rail wheels are symmetrically fixedly installed on the lower surface of the vehicle, and the V-shaped rail wheels are rollingly arranged on the corresponding rails.

[0010] In the above technical scheme, the laser axis positioning device includes a round block, an infrared laser locator is embedded and installed at the center of the right surface of the round block, and three hollow tubes are fixedly installed on the outer surface of the round block at equal intervals in the circumferential direction with itself as the axis, and sliding grooves are opened through the hollow tubes, and movable rods are slidably installed in the hollow tubes, and L-shaped card joints are fixedly installed on the outer ends of the movable rods, and a spring is fixedly installed between the movable rod and the corresponding hollow tube, and an adjustment block is fixedly installed on the outer surface of the movable rod, and the adjustment block is slidably set in the corresponding sliding groove.

[0011] Compared with the prior art, the inner wall cutting device for repairing a hydraulic cylinder of the utility model has the following beneficial effects:

[0012] Before the end of the cylinder is mounted on the chuck, the utility model can place the cylinder on a V-shaped support plate, clamp the laser axis center positioning device at the opening of the inner cavity at the left end of the cylinder, and use the lifting and lowering adjustment device to adjust the height of the cylinder. During the adjustment process, it is possible to refer to the laser irradiated on the chuck by the laser axis center positioning device to judge whether the axis center of the cylinder is in the same horizontal position as the axis center of the chuck, thereby making the positioning operation between the cylinder and the chuck more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the vehicle-carrying structure of the utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the laser axis positioning device of the present utility model.

[0016] Figure 1-3 Among them: 1. workbench; 11. groove; 111. track; 12. fixed plate; 13. chuck; 2. boring machine body; 3. carrier; 31. V-shaped track wheel; 32. telescopic column; 33. support plate; 34. V-shaped support plate; 35. fixed block; 4. lifting adjustment device; 41. positive and negative threaded rod; 411. hand wheel; 42. moving block; 43. movable plate; 44. adapter block; 5. laser axis positioning device; 51. round block; 52. infrared laser locator; 53. hollow tube; 531. slide groove; 54. movable rod; 541. adjustment block; 55. L-shaped card joint; 56. spring, 6. hydraulic lifting column. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0019] A kind of inner wall cutting equipment for repairing hydraulic cylinder comprises a workbench 1, the upper surface of the workbench 1 is provided with a groove 11, a boring machine body 2 with a walking mechanism is slidably installed in the groove 11, a fixing plate 12 is fixedly installed on the right side of the upper surface of the workbench 1, a chuck 13 is fixedly installed on the left surface of the fixing plate 12, a carrier 3 is slidably arranged in the groove 11, four telescopic columns 32 are fixedly installed on the upper surface of the carrier 3, a supporting plate 33 is fixedly installed between the top ends of the four telescopic columns 32, a plurality of V-shaped supporting plates 34 are fixedly installed on the upper surface of the supporting plate 33, a cylinder barrel to be repaired is supported and placed between the plurality of V-shaped supporting plates 34, a lifting and adjusting device 4 is installed between the lower surface of the V-shaped supporting plate 34 and the upper surface of the carrier 3, a connecting rope 331 is fixedly connected to the outer surface of the supporting plate 33, a laser axis positioning device 5 is fixedly connected to the end of the connecting rope 331 away from the supporting plate 33, and the laser axis positioning device 5 is clamped at the opening at the left end of the inner cavity of the cylinder barrel to be repaired;

[0020] It should be noted that if Figure 2 As shown, two fixed blocks 35 are symmetrically fixedly installed on the upper surface of the trolley 3, and the lifting and lowering adjustment device 4 includes a positive and negative threaded rod 41 rotatably installed between the two fixed blocks 35, a hand wheel 411 is fixedly installed on the front end of the positive and negative threaded rod 41, and a moving block 42 is symmetrically screwed and installed on the outer surface of the positive and negative threaded rod 41, and the lower surface of the moving block 42 is in contact with the upper surface of the trolley 3, and a movable plate 43 is rotatably installed on the top of the moving block 42, and a transfer block 44 is rotatably installed on the end of the movable plate 43 away from the moving block 42, and the transfer block 44 is fixedly installed on the lower surface of the support plate 33;

[0021] When in use, the cylinder barrel of the hydraulic cylinder to be repaired is first placed on the V-shaped support plate 34 through the crane hoist for lifting, and then the laser axis positioning device 5 is turned on to make the laser penetrate the cylinder barrel and irradiate the chuck 13. After that, the hand wheel 411 is manually shaken to drive the positive and negative threaded screws 41 to rotate, and the moving block 42 is driven to move inward synchronously, and then the support plate 33 is lifted up by the movable plate 43 to adjust the height of the cylinder barrel. During the adjustment process, the projection position of the laser on the chuck 13 is always observed. When the laser projection position is at the axis center of the chuck 13, the adjustment is stopped. At this time, the axis center of the cylinder barrel is aligned with the axis center of the chuck 13. In a horizontal position, the carrier 3 is then moved downward toward the chuck 13, the right end of the cylinder is inserted into the chuck 13, and the chuck 13 is adjusted to clamp and fix the left end of the cylinder. After fixation, the position of the carrier 3 remains unchanged, and the cylinder is continued to be supported by the V-shaped support plate 34 to reduce the weight of the chuck 13, and finally the laser axis positioning device 5 is removed from the left end of the cylinder, and the boring machine body 2 can be used to perform cutting and repair work on the inner wall of the cylinder. Compared with the prior art, the utility model can be more convenient and quick when positioning between the cylinder and the chuck 13, and can improve the overall efficiency of the cylinder repair work.

[0022] In order to make the vehicle 3 move left and right more labor-saving, Figure 1 As shown, the trolley 3 needs to be arranged in an L shape, and a hydraulic lifting column 6 needs to be fixedly installed between the right surface of the trolley 3 and the fixed plate 12. The trolley 3 can be moved with the help of the hydraulic lifting column 6, so that its left and right movement is more labor-saving.

[0023] Specifically, if Figure 1 As shown, a track 111 is symmetrically fixedly installed in the groove 11, and four V-shaped track wheels 31 are symmetrically fixedly installed on the lower surface of the vehicle 3. The V-shaped track wheels 31 are rollingly set on the corresponding tracks 111. Through the cooperation between the V-shaped track wheels 31 and the tracks 111, it can be ensured that the vehicle 3 can stably slide left and right in the groove 11.

[0024] Specifically, the laser axis positioning device 5 includes a round block 51, an infrared laser locator 52 is embedded and installed at the center of the right surface of the round block 51, and three hollow tubes 53 are fixedly installed on the outer surface of the round block 51 with itself as the axis and equidistantly in the circumferential direction, and a slide groove 531 is opened through the hollow tubes 53, and a movable rod 54 is slidably installed in the hollow tube 53, and an L-shaped clamping joint 55 is fixedly installed on the outer end of the movable rod 54, and a spring 56 is fixedly installed between the movable rod 54 and the corresponding hollow tube 53, and an adjustment block 541 is fixedly installed on the outer surface of the movable rod 54, and the adjustment block 541 is slidably set in the corresponding slide groove 531;

[0025] When installing the laser axis center positioning device 5 to the left end opening of the inner cavity of the cylinder, first pull the movable rod 54 and the L-shaped clamping joint 55 inward through the adjusting block 541, shorten the length and place the laser axis center positioning device 5 as a whole at the left end opening of the inner cavity of the cylinder, slowly relax the pressure on the adjusting block 541, and use the expansion and contraction force of the spring 56 to drive the movable rod 54 to move outward. During the movement, visually observe the position of the L-shaped clamping joint 55, and fit the L-shaped clamping joint 55 to the left end opening of the inner cavity of the cylinder. After clamping, the laser axis center positioning device 5 is clamped and fixed at the left end opening of the inner cavity of the cylinder, and the infrared laser locator 52 is located on the axis line of the cylinder. After turning on, the position between the axis of the chuck 13 can be quickly determined by means of the rays set by the infrared laser locator 52, so as to facilitate the adjustment of the height of the cylinder and the positioning between the chuck 13.

Claims

1. An inner wall cutting device for repairing a hydraulic cylinder, comprising a workbench (1), wherein a groove (11) is provided on the upper surface of the workbench (1), a boring machine body (2) with a walking mechanism is slidably mounted in the groove (11), a fixing plate (12) is fixedly mounted on the right side of the upper surface of the workbench (1), and a chuck (13) is fixedly mounted on the left surface of the fixing plate (12), characterized in that: A trolley (3) is slidably arranged in the groove (11), four telescopic columns (32) are fixedly installed on the upper surface of the trolley (3), a support plate (33) is fixedly installed between the top ends of the four telescopic columns (32), a plurality of V-shaped supporting plates (34) are fixedly installed on the upper surface of the support plate (33), a cylinder to be repaired is supported and placed between the plurality of V-shaped supporting plates (34), and a lifting and lowering adjustment device (4) is installed between the lower surface of the V-shaped supporting plate (34) and the upper surface of the trolley (3); The outer surface of the support plate (33) is fixedly connected with a connecting rope (331), and one end of the connecting rope (331) away from the support plate (33) is fixedly connected with a laser axis positioning device (5), and the laser axis positioning device (5) is clamped at the left end opening of the inner cavity of the cylinder to be repaired.

2. The inner wall cutting device for repairing a hydraulic cylinder according to claim 1, characterized in that: Two fixed blocks (35) are symmetrically fixedly installed on the upper surface of the carrier (3); the lifting and adjusting device (4) comprises a positive and negative threaded rod (41) rotatably installed between the two fixed blocks (35); a hand wheel (411) is fixedly installed at the front end of the positive and negative threaded rod (41); a moving block (42) is symmetrically screwed and installed on the outer surface of the positive and negative threaded rod (41); the lower surface of the moving block (42) is in contact with the upper surface of the carrier (3); and a movable plate (43) is rotatably installed on the top of the moving block (42); and a transfer block (44) is rotatably installed on one end of the movable plate (43) away from the moving block (42); and the transfer block (44) is fixedly installed on the lower surface of the support plate (33).

3. The inner wall cutting device for repairing a hydraulic cylinder according to claim 2, characterized in that: The carrier (3) is L-shaped, and a hydraulic lifting column (6) is fixedly installed between the right surface of the carrier (3) and the fixed plate (12).

4. The inner wall cutting device for repairing a hydraulic cylinder according to any one of claims 1 to 3, characterized in that: A track (111) is symmetrically fixedly installed in the groove (11), and four V-shaped track wheels (31) are symmetrically fixedly installed on the lower surface of the vehicle (3), and the V-shaped track wheels (31) are rollingly arranged on the corresponding tracks (111).

5. The inner wall cutting device for repairing a hydraulic cylinder according to claim 4, characterized in that: The laser axis positioning device (5) comprises a round block (51), an infrared laser locator (52) is embedded and installed at the center of the right surface of the round block (51), and three hollow tubes (53) are fixedly installed on the outer surface of the round block (51) at equal intervals in the circumferential direction with itself as the axis, and a slide groove (531) is opened through the hollow tubes (53), and a movable rod (54) is slidably installed in the hollow tube (53), and an L-shaped clamping joint (55) is fixedly installed on the outer end of the movable rod (54), and a spring (56) is fixedly installed between the movable rod (54) and the corresponding hollow tube (53), and an adjustment block (541) is fixedly installed on the outer surface of the movable rod (54), and the adjustment block (541) is slidably set in the corresponding slide groove (531).

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