Tightening device for assembling oil damper

Abstract

The invention discloses a tightening device for assembling an oil damper, and belongs to the technical field of damper assembling. The device comprises a workbench, a fixing mechanism is arranged on the top face of the workbench, a fixing frame is arranged on one side of the fixing mechanism, a moving assembly is arranged on the fixing frame, and a tightening mechanism is arranged on the moving assembly. The tightening mechanism comprises a mounting seat, the mounting seat is mounted on the moving assembly, a driving motor is arranged on the mounting seat, and a tool assembly is mounted on an output shaft of the driving motor; the adjustable tool assembly is arranged and can be suitable for assembling and using of screw caps of oil pressure dampers of different sizes, a fixing ring is driven to rotate through cooperation of a fixing block A and a protruding block, cooperation of a fixing block B and a mounting disc and arrangement of a threaded rod, and therefore a plurality of connecting rods do arc motion; and the distance between one ends of the inner sides of the connecting rods is adjusted, so that the screw caps of the oil damper with different sizes can be assembled and used, and the adjustment is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of shock absorber assembly, and more particularly to a tightening device for assembling a hydraulic shock absorber. Background Art

[0002] The compression screw cap is a sealing and fixing component of the finished oil shock absorber. The tightening accuracy of this component is required to be high because it is directly related to the overall reliability of the oil shock absorber. If the tightening torque is insufficient, the high-frequency vibration of the shock absorber during operation will easily cause the thread to loosen, resulting in seal failure; and tightening beyond the rated torque will cause damage to the internal components of the oil pressure. The tightening process of the oil shock absorber compression screw cap usually includes the positioning of the shock absorber, the replacement of the tightening tooling of different types of shock absorbers, and the tightening and fixing of the tightening mechanism.

[0003] Since there are many types of hydraulic shock absorbers and various interface sizes, there are few tightening devices suitable for batch assembly of shock absorbers of different sizes on the assembly line, and most tightening devices need to manually replace the tightening tooling according to the hydraulic shock absorber model, which is time-consuming and laborious. In view of this, we propose a tightening device for assembling hydraulic shock absorbers. Summary of the invention

[0004] The object of the present invention is to provide a tightening device for assembling a hydraulic shock absorber to solve the problems raised in the above background technology: To achieve the above object, the present invention provides the following technical solutions: A tightening device for assembling a hydraulic shock absorber comprises a workbench, a fixing mechanism is arranged on the top surface of the workbench, a fixing frame is arranged on one side of the fixing mechanism, a moving assembly is arranged on the fixing frame, and a tightening mechanism is arranged on the moving assembly; The tightening mechanism includes a mounting seat, which is mounted on the moving assembly, a driving motor is arranged on the mounting seat, and a tooling assembly is installed on the output shaft of the driving motor; The tooling assembly includes a mounting plate, a plurality of connecting rods are arranged on the bottom surface of the mounting plate, a positioning bolt is connected to one end of the inner side of the connecting rod, and one end of the outer side of the connecting rod is rotatably connected to the mounting plate, a fixing ring is rotatably connected to the mounting plate, a sleeve is sleeved on the connecting rod, the connecting rod and the sleeve are slidably matched, a connecting shaft is arranged on the outer side of the sleeve, the connecting shaft passes through the fixing ring and is rotatably connected to the fixing ring; A protrusion is provided on one side of the fixing ring, and a fixing block A is rotatably connected to the protrusion, and a fixing block B is rotatably connected to the mounting plate. A motor A is provided at one end of the fixing block B, and a threaded rod is connected to the output shaft of the motor A. The threaded rod passes through the fixing block A, and the threaded rod is rotatably connected to the fixing block B, and the threaded rod and the fixing block A are threadedly matched.

[0005] Preferably, the fixing rings are provided in two groups, which are respectively provided on both sides of the sleeve, and a connecting column is provided between the two fixing rings, and one of the fixing rings is rotatably connected to the mounting plate.

[0006] Preferably, a fixing cylinder is provided on the bottom surface of the mounting seat, a positioning plate is sleeved on the fixing cylinder, the fixing cylinder is rotatably connected to the positioning plate, a positioning column is provided on the positioning plate, the positioning column is fixedly connected to the mounting seat, the mounting plate is movably connected to the fixing cylinder, and the output shaft of the driving motor is connected to the fixing cylinder.

[0007] Preferably, a vertical through slot is provided on the fixing frame, a lifting mechanism is provided at the rear side of the fixing frame, and the moving component passes through the vertical through slot and is connected to the output shaft of the lifting mechanism.

[0008] Preferably, the moving assembly includes a moving frame, two first slide rails and two second slide rails, the two first slide rails are relatively arranged on both sides of the fixed frame, the first slide rails are provided with a first slider that slidably cooperates with the moving frame, and the moving frame is connected to the lifting mechanism.

[0009] Preferably, the second slide rail is arranged perpendicular to the first slide rail, the two second slide rails are installed on the moving frame in parallel with each other, the second slide rail is slidably connected to the second slider, and the second slider is connected to the mounting seat; A motor B is arranged inside the moving frame, a gear is arranged outside the moving frame, the output shaft of the motor B is connected with the gear, a rack is arranged on the second sliding block on the upper side, and the rack is meshed with the gear.

[0010] Preferably, the fixing mechanism is a three-jaw chuck structure.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention can be used for the assembly of screw caps of oil hydraulic shock absorbers of different sizes or for tightening parts by setting an adjustable tooling assembly, thereby reducing the tediousness of replacing tooling and effectively improving the efficiency of oil hydraulic shock absorber assembly. The fixing ring is driven to rotate by the cooperation between the fixing block A and the protrusion, the cooperation between the fixing block B and the mounting plate, and the setting of the threaded rod, so that the multiple connecting rods make circular arc motions, and the distance between the inner ends of the multiple connecting rods is adjusted, so as to adapt to the assembly of screw caps of oil hydraulic shock absorbers of different sizes and facilitate adjustment. The inner end of the connecting rod is connected to a positioning bolt, which is inserted into the screw cap hole on the screw cap, and then the driving motor is used to drive the tooling assembly to rotate to complete the tightening action. The tightening action can also be performed by directly clamping the screw cap or other parts that need to be tightened at the inner end of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the tightening device for assembling the oil pressure shock absorber of the present invention; Figure 2 It is a rear view schematic diagram of the overall structure of the tightening device for assembling the oil pressure shock absorber of the present invention; Figure 3 It is a schematic diagram of the structure of the moving assembly and the tightening mechanism of the present invention; Figure 4 It is a side elevation schematic diagram of the moving assembly and the tightening mechanism structure of the present invention; Figure 5 It is a schematic diagram of the installation structure on the installation plate in the tightening mechanism of the present invention; Figure 6 It is a schematic diagram of the state when the distance between the positioning bolts in the tightening mechanism of the present invention is the largest; Figure 7 This is a schematic diagram of the state when there are two positioning bolts of the present invention.

[0013] Explanation of the numbers in the figure: 1. workbench; 2. fixing mechanism; 3. fixing frame; 301. vertical through groove; 4. moving assembly; 401. moving frame; 402. first slide rail; 403. second slide rail; 404. first slider; 405. second slider; 406. rack; 407. gear; 5. tightening mechanism; 501. mounting seat; 502. driving motor; 503. mounting plate; 504. connecting rod; 505. fixing ring; 506. sleeve; 507. connecting shaft; 508. bump; 509. fixing block A; 510. fixing block B; 511. motor A; 512. threaded rod; 513. connecting column; 514. fixing cylinder; 515. positioning plate; 516. positioning column; 517. positioning bolt; 6. lifting mechanism. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] Example: See also Figure 1-7 A tightening device for assembling a hydraulic shock absorber comprises a workbench 1, a fixing mechanism 2 is arranged on the top surface of the workbench 1, the fixing mechanism 2 is used to fix the lower end of the hydraulic shock absorber, a fixing frame 3 is arranged on one side of the fixing mechanism 2, a moving component 4 is arranged on the fixing frame 3, a tightening mechanism 5 is arranged on the moving component 4, and the tightening mechanism 5 is used to automatically tighten the clamping nut cover of the hydraulic shock absorber when the clamping nut cover is installed; the lower end of the hydraulic shock absorber is fixed by the fixing mechanism 2, and the moving component 4 drives the tightening mechanism 5 to move to the clamping nut cover and tighten the clamping nut cover.

[0016] The tightening mechanism 5 includes a mounting seat 501, which is mounted on the moving assembly 4. A driving motor 502 is provided on the mounting seat 501. A tooling assembly is installed on the output shaft of the driving motor 502. The tooling assembly is used to connect with the compression screw cap. The driving motor 502 drives the tooling assembly to rotate to complete the tightening action. The tooling assembly includes a mounting plate 503, which is hollow inside. A plurality of connecting rods 504 are arranged on the bottom surface of the mounting plate 503. One end of the outer side of the connecting rod 504 is rotatably connected to the mounting plate 503. A fixing ring 505 is rotatably connected to the mounting plate 503. A sleeve 506 is sleeved on the connecting rod 504. The connecting rod 504 and the sleeve 506 are slidably matched. A connecting shaft 507 is arranged on the outer side of the sleeve 506. The connecting shaft 507 passes through the fixing ring 505 and is rotatably connected to the fixing ring 505. When the fixing ring 505 rotates, the connecting shaft 507 will rotate with it, and the connecting shaft 507 will also rotate at the same time, and the connecting shaft 507 will drive the sleeve 506 to move. At this time, since the outer end of the connecting rod 504 is rotatably connected to the mounting plate 503, the connecting rod 504 will rotate around the connecting shaft at its outer end driven by the sleeve 506, so that the inner ends of the plurality of connecting rods 504 are close to or away from each other, thereby adapting to the assembly and use of screw caps of oil pressure shock absorbers of different sizes.

[0017] Among them, one end of the inner side of the connecting rod 504 is connected with a positioning bolt 517, which is inserted into the screw cover hole on the screw cover, and then the driving motor 502 is used to drive the tooling assembly to rotate to complete the tightening action.

[0018] In a possible embodiment, rubber pads may be provided at the inner ends of the plurality of connecting rods 504 , and tightening action may be performed directly by clamping nuts or other parts that need to be tightened at the inner ends of the connecting rods 504 .

[0019] A protrusion 508 is provided on one side of the fixing ring 505, and a fixing block A509 is rotatably connected to the protrusion 508. A fixing block B510 is rotatably connected to the mounting plate 503. A motor A511 is provided at one end of the fixing block B510. A threaded rod 512 is connected to the output shaft of the motor A511. The threaded rod 512 penetrates the fixing block A509, and is rotatably connected to the fixing block B510. The threaded rod 512 is threadedly matched with the fixing block A509. The motor A511 is used to drive the threaded rod 512 to rotate, so that the fixed block A509 matched with the threaded rod 512 is moved close to or away from the fixed block B510, so that the fixed block A509 drives the protrusion 508 and the fixed ring 505 to rotate; wherein the fixed ring 505 is rotatably connected to the mounting disk 503, and the movement trajectory of the fixed ring 505 is restricted, so that the fixed ring 505 can only rotate in the circumferential direction, and the fixed block A509 is rotatably connected to the protrusion 508 and the fixed block B510 is rotatably connected to the mounting disk 503. When the fixed ring 505 rotates, the fixed block A509 and the fixed block B510 will both rotate and move around their own axis to meet the purpose of the fixed ring 505 being able to rotate.

[0020] The threaded rod 512 cooperates with the motor A511, and when the screw cap of the oil pressure shock absorber is tightened or the threaded rod 512 does not need to rotate, the threaded rod 512 will be locked under the action of the motor A511.

[0021] The number of connecting rods 504 can be designed as needed. When the number of connecting rods 504 increases, the fixing block A509, the fixing block B510 and the threaded rod 512 can also be arranged in the mounting plate 503, a cavity is provided in the mounting plate 503, and an arc groove is provided on the bottom surface of the mounting plate 503 to meet the moving track of the protrusion 508 without affecting the movement of the connecting rod 504. Figure 5 Schematic diagram of a device having three sets of connecting rods 504, as shown in FIG. Figure 7 It is a schematic diagram of having two sets of connecting rods 504.

[0022] In the present application, the fixing rings 505 are arranged in two groups, which are respectively arranged on both sides of the sleeve 506. A connecting column 513 is arranged between the two fixing rings 505. One of the fixing rings 505 is rotatably connected to the mounting plate 503. The vertical position of the sleeve 506 is restricted by the arrangement of the two groups of fixing rings 505. The connecting column 513 is used to connect the two fixing rings 505 into an integral structure, and the connecting column 513 is arranged on one side of the sleeve 506, which will not affect the rotation of the sleeve 506 and the connecting rod 504 to one side.

[0023] In the present application, a fixing cylinder 514 is provided on the bottom surface of the mounting seat 501, and a positioning plate 515 is sleeved on the fixing cylinder 514. The fixing cylinder 514 is rotatably connected to the positioning plate 515, and a positioning column 516 is provided on the positioning plate 515. Multiple groups of positioning columns 516 can be provided. The positioning columns 516 are connected and fixed to the mounting seat 501, and the mounting disk 503 is movably connected to the fixing cylinder 514 to facilitate the disassembly of the mounting disk 503. The output shaft of the driving motor 502 is connected to the fixing cylinder 514, and the driving motor 502 is used to drive the fixing cylinder 514 to rotate, and the rotation of the fixing cylinder 514 drives the mounting disk 503 to rotate. The position of the fixing cylinder 514 is limited by the setting of the positioning plate 515, thereby improving the stability of the fixing cylinder 514. A reducer is connected to the driving motor 502 to adjust the output rate of the driving motor 502.

[0024] In the present application, a vertical through slot 301 is opened on the fixed frame 3, a lifting mechanism 6 is arranged on the rear side of the fixed frame 3, the moving component 4 passes through the vertical through slot 301 and is connected with the output shaft of the lifting mechanism 6, and the lifting mechanism 6 drives the moving component 4 to move along the extension direction of the vertical through slot 301, thereby adjusting the vertical position of the tightening mechanism 5.

[0025] Specifically, the moving assembly 4 includes a moving frame 401, two first slide rails 402 and two second slide rails 403. The two first slide rails 402 are relatively arranged on both sides of the fixed frame 3. The first slide rails 402 are provided with first sliders 404 that slide with the moving frame 401, and the moving frame 401 is connected to the lifting mechanism 6. The first slide rails 402 are arranged vertically. When the moving frame 401 is driven to move vertically by the lifting mechanism 6, the first sliders 404 on both sides of the moving frame 401 move along the first slide rails 402. The lifting mechanism 6 can be set as a hydraulic cylinder.

[0026] In the present application, the second slide rail 403 and the first slide rail 402 are arranged perpendicular to each other, and the two second slide rails 403 are installed on the movable frame 401 in parallel with each other. The second slide rail 403 is slidably connected to the second slider 405, and the second slider 405 is connected to the mounting seat 501; the second slide rail 403 is horizontally arranged and is used to adjust the horizontal position of the tightening mechanism 5.

[0027] A motor B is provided inside the mobile frame 401, and a gear 407 is provided outside the mobile frame 401. The output shaft of the motor B is connected to the gear 407. A rack 406 is provided on the second slider 405 located on the upper side, and the rack 406 is meshed with the gear 407. The extension direction of the rack 406 is the same as the extension direction of the second slide rail 403, and the length of the rack 406 can be designed as required. The motor B drives the gear 407 to rotate. Due to the cooperation between the second slider 405 and the second slide rail 403, the vertical position of the second slider 405 is limited. When the gear 407 rotates, the rack 406 meshed with the gear 407 moves in the horizontal direction, thereby adjusting the horizontal position of the tightening mechanism 5.

[0028] In the present application, the fixing mechanism 2 is a three-jaw chuck structure, and the three-jaw chuck structure is a prior art and will not be described in detail here.

[0029] Working principle: When the present invention is in use, the lower end of the oil pressure shock absorber is fixed by the fixing mechanism 2, and the motor B is used to drive the gear 407 to rotate. When the gear 407 rotates, the rack 406 meshing with the gear 407 will move in the horizontal direction. At this time, the second slider 405 slides along the second slide rail 403, so as to adjust the horizontal position of the tightening mechanism 5. When the lifting mechanism 6 is used to drive the movable frame 401 to move vertically, the first sliders 404 on both sides of the movable frame 401 move along the first slide rail 402 to adjust the vertical position of the tightening mechanism 5. By adjusting the horizontal position and the vertical position, the tightening mechanism 5 is matched with the clamping nut cover of the oil pressure shock absorber, and the tooling assembly is driven to rotate by the driving motor 502 to tighten the clamping nut cover.

[0030] When the tightening mechanism 5 cooperates with the clamping nut, the oil pressure shock absorber can automatically adjust the distance between the inner ends of the connecting rod 504 according to different sizes. During adjustment, the motor A511 is used to drive the threaded rod 512 to rotate, so that the fixed block A509 that cooperates with the threaded rod 512 is close to or away from the fixed block B510, so that the fixed block A509 drives the protrusion 508 and the fixed ring 505 to rotate, and the fixed ring 505 rotates around its axis. When the fixed ring 505 rotates, the fixed block A509 and the fixed block B510 will rotate and move around their own axis to meet the purpose of the fixed ring 505 being able to rotate. During rotation, the connecting shaft 507 will rotate along with it, and the connecting shaft 507 will also rotate by itself, and the connecting shaft 507 will drive the sleeve 506 to move. At this time, since the outer end of the connecting rod 504 is rotatably connected to the mounting plate 503, the connecting rod 504 will rotate around the connecting shaft at its outer end driven by the sleeve 506, so that the inner ends of the multiple connecting rods 504 are close to or away from each other, thereby adjusting the distance between the positioning bolts 517 to adapt to the use of screw cover holes on oil pressure shock absorbers of different sizes, and facilitate the assembly and use of screw covers of oil pressure shock absorbers of different sizes, so that a set of tooling can be used for a variety of sizes, avoiding the tediousness of replacing tooling.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tightening device for assembling a hydraulic shock absorber, comprising a workbench (1), characterized in that: The top surface of the workbench (1) is provided with a fixing mechanism (2), a fixing frame (3) is provided on one side of the fixing mechanism (2), a moving component (4) is provided on the fixing frame (3), and a tightening mechanism (5) is provided on the moving component (4); The tightening mechanism (5) comprises a mounting seat (501), the mounting seat (501) being mounted on the moving assembly (4), a driving motor (502) being arranged on the mounting seat (501), and a tooling assembly being mounted on the output shaft of the driving motor (502); The tooling assembly comprises a mounting plate (503), a plurality of connecting rods (504) are arranged on the bottom surface of the mounting plate (503), one end of the outer side of the connecting rod (504) is rotatably connected to the mounting plate (503), a fixing ring (505) is rotatably connected to the mounting plate (503), a sleeve (506) is sleeved on the connecting rod (504), the connecting rod (504) and the sleeve (506) are slidably matched, a connecting shaft (507) is arranged on the outer side of the sleeve (506), and the connecting shaft (507) passes through the fixing ring (505) and is rotatably connected to the fixing ring (505); A protrusion (508) is provided on one side of the fixing ring (505), a fixing block A (509) is rotatably connected to the protrusion (508), a fixing block B (510) is rotatably connected to the mounting plate (503), a motor A (511) is provided on one end of the fixing block B (510), a threaded rod (512) is connected to the output shaft of the motor A (511), the threaded rod (512) passes through the fixing block A (509), the threaded rod (512) is rotatably connected to the fixing block B (510), and the threaded rod (512) is threadably engaged with the fixing block A (509).

2. A tightening device for assembling a hydraulic shock absorber according to claim 1, characterized in that: The fixing rings (505) are provided in two groups, which are respectively provided on both sides of the sleeve (506); a connecting column (513) is provided between the two fixing rings (505); one of the fixing rings (505) is rotatably connected to the mounting plate (503); One inner end of the connecting rod (504) is connected to a positioning bolt (517).

3. The tightening device for assembling a hydraulic shock absorber according to claim 1, characterized in that: A fixing cylinder (514) is disposed on the bottom surface of the mounting seat (501), a positioning plate (515) is sleeved on the fixing cylinder (514), the fixing cylinder (514) is rotatably connected to the positioning plate (515), a positioning column (516) is disposed on the positioning plate (515), the positioning column (516) is connected and fixed to the mounting seat (501), the mounting plate (503) is movably connected to the fixing cylinder (514), and the output shaft of the driving motor (502) is connected to the fixing cylinder (514).

4. The tightening device for assembling a hydraulic shock absorber according to claim 1, characterized in that: The fixing frame (3) is provided with a vertical through slot (301), a lifting mechanism (6) is arranged at the rear side of the fixing frame (3), and the moving assembly (4) passes through the vertical through slot (301) and is connected to an output shaft of the lifting mechanism (6).

5. A tightening device for assembling a hydraulic shock absorber according to claim 4, characterized in that: The moving assembly (4) comprises a moving frame (401), two first slide rails (402) and two second slide rails (403); the two first slide rails (402) are arranged on two sides of the fixed frame (3) opposite to each other; the first slide rails (402) are provided with first sliders (404) which are slidably matched with the moving frame (401); and the moving frame (401) is connected to a lifting mechanism (6).

6. A tightening device for assembling a hydraulic shock absorber according to claim 5, characterized in that: The second slide rail (403) and the first slide rail (402) are arranged perpendicular to each other, and the two second slide rails (403) are installed on the movable frame (401) in parallel with each other. The second slide rail (403) is slidably connected to a second slider (405), and the second slider (405) is connected to the mounting seat (501); A motor B is arranged inside the moving frame (401), a gear (407) is arranged outside the moving frame (401), an output shaft of the motor B is connected to the gear (407), a rack (406) is arranged on the second sliding block (405) located on the upper side, and the rack (406) is meshed with the gear (407).

7. The tightening device for assembling a hydraulic shock absorber according to claim 1, characterized in that: The fixing mechanism (2) is a three-jaw chuck structure.

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