Laser drilling equipment for shock absorber front fork machining and electric bicycle shock absorber

Abstract

The invention relates to the technical field of drilling equipment, and discloses laser drilling equipment for shock absorber front fork machining and an electric bicycle shock absorber. The laser drilling equipment for shock absorber front fork machining comprises two conveying devices, a drilling table arranged between the two conveying devices and a laser drilling arm arranged in the drilling table; and the fixing assembly is arranged on the surface of the punching table. According to the laser drilling equipment for machining the front fork of the shock absorber, the fixing assembly is arranged, before drilling, the front fork assembly is arranged on the outer side of the sleeve in a sleeving mode, then the power assembly pushes the inner pipe and the jacking sleeve, and finally the front fork assembly is clamped between the deflection plate and the jacking sleeve, so that the two ends of the front fork assembly serve as fixing points; according to the front fork assembly punching device, shielding on the outer surface of the front fork assembly can be reduced, it is guaranteed that punching work is conducted smoothly, meanwhile, the conical deflection plate and the jacking sleeve play a role in centering and positioning the front fork assembly, and accurate punching can be achieved under cooperation of a numerical control program.

Description

Technical Field

[0001] The invention relates to the technical field of punching equipment, and in particular to a laser punching equipment for processing a shock absorber front fork and an electric bicycle shock absorber. Background Art

[0002] The front fork shock absorber of an electric bicycle is a shock-absorbing device used on electric bicycles. It plays an important role in improving the riding experience and ensuring driving safety. The front fork hydraulic shock absorber is composed of an upper tube, fork shoulder, stroke tube, fork cylinder, inner tube, fork bridge, etc. When the electric bicycle is traveling on an uneven road, the impact force on the wheel is transmitted to the shock absorber through the frame, and the stroke tube moves relative to the fork cylinder, compressing the hydraulic oil to generate damping force, and the spring is also compressed; when the impact force decreases, the spring pushes the inner tube, the hydraulic oil flows back, and the damping valve generates damping force again; the damping can be adjusted to adapt to different road conditions.

[0003] The various components of the front fork shock absorber are mainly cast from aluminum alloy. After successful casting, the preset fixing bolt holes on the surface are all sealed, so it is necessary to use laser drilling equipment to drill through these fixing bolt holes. At the same time, some vehicles use an internal wiring design, which also requires laser drilling equipment to drill holes on the surface of the front fork shock absorber.

[0004] A laser punching machine is disclosed in the patent publication number CN115138996A, including a device base, a positioning clamping mechanism, a workpiece to be processed, and a driving mechanism. The multi-station laser punching machine drives two semi-annular sleeves to move closer to or farther from each other through a bidirectional telescopic rod. When the two semi-annular sleeves are completely retracted into the cavity, the rotation of the threaded rod will not drive the first slider to move, while the second slider moves with the rotation of the threaded rod, so that one of the two positioning clamping mechanisms moves and the other is fixed, achieving the effect of adjusting the distance between the two positioning clamping mechanisms, so that the device can clamp workpieces to be processed of different lengths; the two semi-annular sleeves are driven together by the bidirectional telescopic rod to form a threaded hole, so that the first slider and the second slider can move synchronously with the rotation of the threaded rod, driving the two positioning clamping mechanisms to move synchronously, achieving the effect of moving the workpiece to be processed and improving the working efficiency of the equipment.

[0005] The prior art has the following defects:

[0006] When using laser drilling equipment to drill holes, the front fork shock absorber needs to be fixed. The front fork shock absorber is generally fixed by wrapping and clamping with a clamp. Although the clamping and fixing effect is good, it will also cause a large area of ​​​​blocking on the surface of the front fork shock absorber. The distribution of holes on the surface of the front fork shock absorber is complex, and the hole distribution of front fork shock absorbers of different sizes and models is different. In this way, the clamp may block the predetermined hole opening position, and it needs to be moved and fixed multiple times, which makes the processing process complicated and affects work efficiency.

[0007] When the front fork shock absorber encounters bumps, the stroke tube and the fork tube will move relative to each other, so the brake line tied to the front fork shock absorber will produce friction with the stroke tube. Long-term friction may cause the brake line to crack and break, brake fluid to leak, affecting the vehicle's braking performance, and posing certain safety hazards. Summary of the invention

[0008] In view of the problem in the prior art that the punching position is blocked by a fixture, a laser punching device for processing a shock absorber front fork and an electric bicycle shock absorber are proposed.

[0009] The present application provides a laser drilling device for processing a shock absorber front fork and an electric bicycle shock absorber, the purpose of which is to prevent a fixing fixture from affecting the drilling work.

[0010] The technical scheme of the present invention is: a laser drilling device for processing a shock absorber front fork, which is used for processing a front fork component, comprising two conveying devices, a drilling table arranged between the two conveying devices, a laser drilling arm arranged in the drilling table, and also comprising a fixing component arranged on the surface of the drilling table, and a spring telescopic rod arranged inside the drilling table. The fixing component specifically comprises a fixing plate arranged on the surface of the spring telescopic rod, an inner tube arranged on the side of the fixing plate away from the spring telescopic rod, a sleeve arranged on the outside of the inner tube, a deflection plate arranged on one end of the sleeve away from the spring telescopic rod, a pushing plate arranged on one end of the inner tube away from the spring telescopic rod, a top pressure sleeve arranged on the outside of the sleeve, and a power component arranged on the outside of the sleeve;

[0011] The punching platform includes a base, a side wall and a top platform. A spring telescopic rod is rotatably installed inside the side wall. One end of the spring telescopic rod extends out of the side wall, and a driving motor is installed at the other end. The sleeve runs through the front fork assembly. The deflection plate is distributed in a circular array along the contour of the sleeve. The deflection plate is wrapped around the outside of the push plate. The inner wall of the deflection plate adopts an inclined design, and the end close to the sleeve is thicker. The top pressure sleeve and the deflection plate are respectively distributed at both ends of the sleeve, and the end of the top pressure sleeve close to the deflection plate is conical.

[0012] Furthermore, the difference between the inner diameter of the portion of the front fork assembly penetrated by the sleeve and the outer diameter of the sleeve is not less than one centimeter.

[0013] Furthermore, the power assembly specifically includes a positioning groove opened on the outside of the sleeve, a positioning ring plate arranged on the outside of the positioning groove, a support spring arranged between the top pressure sleeve and the positioning ring plate, a mounting hole opened on the surface of the positioning ring plate, an air cylinder arranged inside the mounting hole, push rods arranged at both ends of the air cylinder, an air hole opened on the surface of the air cylinder, a through threaded hole opened on the outside of the positioning ring plate, a hard air pipe and a positioning threaded sleeve arranged inside the through threaded hole, a fixed threaded sleeve arranged at one end of the hard air pipe away from the positioning ring plate, and a soft air pipe arranged at one end of the fixed threaded sleeve away from the hard air pipe;

[0014] The through threaded hole penetrates into the mounting hole and docks with the air hole. The two ejector rods are in contact with the top pressure sleeve and the fixing plate respectively. The positioning threaded sleeve is sleeved on the outside of the hard air pipe. The end of the soft air pipe away from the fixed threaded sleeve is connected to the suction air pump.

[0015] Further, the force required for compressing the support spring is greater than the friction force between the inner tube and the sleeve.

[0016] Furthermore, the hard air tube penetrates into the air hole.

[0017] Furthermore, the power assembly also includes a mounting bracket disposed on the side wall surface, and a locking threaded hole is provided on the surface of the mounting bracket;

[0018] The hard air pipe penetrates the locking threaded hole from bottom to top, and the fixed threaded sleeve is inserted into the locking threaded hole and is threadedly connected with the hard air pipe.

[0019] Furthermore, an alignment component is provided on the inner side of the punching table, and the alignment component specifically includes a hydraulic telescopic rod provided on the top of the base, a lifting platform provided on the top of the hydraulic telescopic rod, and an auxiliary docking frame provided on the lifting platform close to the side wall;

[0020] The top surface of the lifting platform is flush with the top surface of the conveying equipment, and the horizontal height of the fixing component is higher than the top surface of the lifting platform.

[0021] Furthermore, the lifting platform is in a convex shape, a U-shaped opening is provided above the auxiliary docking frame, and the arc surface at the bottom of the U-shaped opening is concentric with the sleeve.

[0022] A shock absorber for an electric bicycle includes a front fork assembly, which specifically includes an upper tube, a fork shoulder arranged at one end of the upper tube, stroke tubes arranged at both ends of the fork shoulder, and a fork tube arranged at the end of the stroke tube away from the fork shoulder. The upper tube adopts an up and down through-through design, and the openings at both ends of the upper tube adopt a fork chamfer design of 45 degrees. The upper tube penetrates the fork shoulder, and a sealing plug is installed at the opening at one end of the upper tube that penetrates the fork shoulder.

[0023] Furthermore, an auxiliary component is fixedly connected to the outer side of the fork shoulder, and the auxiliary component specifically includes a fixing plate arranged on the side of the fork shoulder, a sliding ring sleeve arranged on the surface of the fixing plate, and a sliding cylinder arranged inside the sliding ring sleeve.

[0024] Beneficial effects of the present invention:

[0025] 1. By setting a fixed component, before punching, the front fork assembly is sleeved on the outside of the sleeve, and then the power component pushes the inner tube and the top pressure sleeve. The inner tube moves to open the deflection plate, and the top pressure sleeve pushes the front fork assembly close to the opened deflection plate. Finally, the front fork assembly is clamped between the deflection plate and the top pressure sleeve. In this way, the two ends of the front fork assembly are used as fixed points, which can reduce the obstruction of the outer surface of the front fork assembly and ensure the smooth progress of the punching work. At the same time, the conical deflection plate and the top pressure sleeve play a role in centering the front fork assembly. With the cooperation of the CNC program, accurate punching can be achieved, and the fixed component has only one fixed connection point with the punching table at the rear, and the front installation place remains empty, which is convenient for loading and unloading of the front fork assembly, which is conducive to improving work efficiency and safety, and also allows a better direction to observe the processing process.

[0026] 2. By setting up a power component, two push rods control the push sleeve and the inner tube respectively. When working, the push rod first pushes the inner tube to open the push plate, and then pushes the push sleeve. In this way, the push sleeve and the push plate can be moved successively by one power and a simple structure. There is no need to use automatic control components, which reduces the material cost and use cost of the equipment and the probability of failure.

[0027] 3. By setting the alignment component, when installing the front fork assembly onto the fixed component, the front fork assembly can be placed on the lifting platform first, and then installed through the auxiliary docking frame. In this way, the staff does not need to lift the front fork assembly in the air for a long time, which can save effort and reduce the work intensity of the staff. At the same time, before fixing, the front fork assembly is completely fitted with the lifting platform, so that the front fork assembly can be kept in a horizontal state and the initial state positioning is completed. With the cooperation of the CNC program, precise drilling can be achieved.

[0028] 4. By setting up auxiliary components, the brake line between the fork shoulder and the fork tube is kept in a straightened state, so that the brake line does not contact the stroke tube. When bumps occur, the position of the sliding cylinder remains unchanged under the support of the brake line, and relative displacement occurs with the sliding ring sleeve. The sliding cylinder moves upward in the sliding ring sleeve. The brake line below the sliding cylinder is always kept in a straightened state, and the top of the sliding cylinder is bent. The top of the sliding cylinder is empty, and the possibility of friction between the brake line and other components is small, which can extend the service life of the brake line. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional diagram of a laser drilling device for processing a shock absorber front fork according to the present invention;

[0030] Figure 2 It is a schematic diagram of the punching station of the present invention;

[0031] Figure 3 For the present invention;

[0032] Figure 4It is a diagram showing the placement state of the front fork assembly of the present invention;

[0033] Figure 5 It is a schematic diagram of the fixing assembly of the present invention;

[0034] Figure 6 This is a disassembled diagram of the fixing assembly of the present invention;

[0035] Figure 7 It is a schematic diagram of the power assembly of the present invention;

[0036] Figure 8 This is a front view of the punching table of the present invention;

[0037] Fig. 9 This is a schematic diagram of the fixing assembly of the present invention penetrating the front fork assembly;

[0038] Fig.10 It is a plan view of the fixing assembly of the present invention;

[0039] Fig.11 For the present invention Figure 8 Sectional view at AA;

[0040] Fig.12 For the present invention Fig.11 Enlarged view of the fixed component;

[0041] Fig.13 For the present invention Fig.12 Enlarged view of point A in the middle;

[0042] Fig.14 This is a disassembled diagram of the alignment assembly of the present invention;

[0043] Fig.15 It is a three-dimensional diagram of the shock absorber of the electric bicycle of the present invention;

[0044] Fig.16 It is a schematic diagram of the fixing assembly of the present invention.

[0045] In the figure:

[0046] 1. Conveying equipment; 2. Punching platform; 21. Base; 22. Side wall; 23. Top platform; 3. Laser punching arm; 4. Fixing assembly; 41. Fixing plate; 42. Inner tube; 43. Sleeve; 44. Deflection plate; 45. Pushing plate; 46. Pressing sleeve; 47. Power assembly; 471. Positioning groove; 472. Positioning ring plate; 473. Support spring; 474. Mounting hole; 475. Air cylinder; 476. Pushing rod; 477. Air hole; 478. Through threaded hole; 479, mounting frame; 4710, locking threaded hole; 4711, hard air tube; 4712, positioning threaded sleeve; 4713, fixing threaded sleeve; 4714, soft air tube; 5, spring telescopic rod; 6, alignment assembly; 61, hydraulic telescopic rod; 62, lifting platform; 63, auxiliary docking frame; 71, upper tube; 72, fork shoulder; 73, stroke tube; 74, fork cylinder; 8, sealing plug; 9, auxiliary assembly; 91, fixing plate; 92, sliding ring sleeve; 93, sliding cylinder. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0048] Example 1, reference Figure 1-14 , which is the first embodiment of the present invention, provides a laser drilling device for processing a shock absorber front fork, which is used for processing a front fork component, including two conveying devices 1, a drilling table 2 arranged between the two conveying devices 1, a laser drilling arm 3 arranged in the drilling table 2, and also includes a fixing component 4 arranged on the surface of the drilling table 2, and a spring telescopic rod 5 arranged inside the drilling table 2. The fixing component 4 specifically includes a fixing plate 41 arranged on the surface of the spring telescopic rod 5, an inner tube 42 arranged on the side of the fixing plate 41 away from the spring telescopic rod 5, a sleeve 43 arranged on the outside of the inner tube 42, a deflection plate 44 arranged at one end of the sleeve 43 away from the spring telescopic rod 5, a pushing plate 45 arranged at one end of the inner tube 42 away from the spring telescopic rod 5, a top pressure sleeve 46 arranged on the outside of the sleeve 43, and a power component 47 arranged on the outside of the sleeve 43.

[0049] Specifically, the conveying device 1 is used to convey the front fork assembly. The punching table 2 includes a base 21, a side wall 22 and a top platform 23. The base 21, the side wall 22 and the top platform 23 are formed in one piece by stamping. The laser punching arm 3 is controlled by a CNC program. The spring telescopic rod 5 is rotatably installed inside the side wall 22. One end of the spring telescopic rod 5 extends out of the side wall 22, and a driving motor is installed on the other end. The fixed plate 41 is fixed to the spring telescopic rod 5 by bolts. The inner tube 42 is integrally welded with the fixed plate 41. The sleeve 43 is slidably sleeved on the outside of the inner tube 42. The length of the sleeve 43 is less than that of the inner tube 42. The sleeve 43 partially penetrates the front fork assembly. The deflection plate 44 is rotatably connected to the sleeve 43. The deflection plate 44 can move away from the sleeve The direction of the central axis of the tube 43 is deflected, and the deflection angle is forty-five degrees. The deflection plate 44 is distributed in a circular array along the contour of the sleeve 43, and the deflection plate 44 is wrapped around the outside of the push plate 45. The inner wall of the deflection plate 44 adopts an inclined design, and the end close to the sleeve 43 is thicker. The push plate 45 is fixed to the inner tube 42 by bolts, and the top pressure sleeve 46 and the deflection plate 44 are respectively distributed at both ends of the sleeve 43. The top pressure sleeve 46 is slidably sleeved on the outside of the sleeve 43. The end of the top pressure sleeve 46 close to the deflection plate 44 is conical, and the inclination angle of the conical surface is forty-five degrees. The difference between the inner diameter of the part of the front fork assembly penetrated by the sleeve 43 and the outer diameter of the sleeve 43 is not less than one centimeter, so as to avoid accidental damage to the sleeve 43 when drilling a hole in the front fork assembly.

[0050] By setting the fixing component 4, before punching, the front fork component is sleeved on the outside of the sleeve 43, and then the power component 47 pushes the inner tube 42 and the top pressure sleeve 46. The inner tube 42 moves to open the deflection plate 44, and the top pressure sleeve 46 pushes the front fork component close to the opened deflection plate 44. Finally, the front fork assembly is clamped between the deflection plate 44 and the top pressure sleeve 46. In this way, the two ends of the front fork assembly are used as fixed points, which can reduce the obstruction of the outer surface of the front fork assembly and ensure the smooth progress of the punching work. At the same time, the conical deflection plate 44 and the top pressure sleeve 46 play a role in centering the front fork assembly. With the cooperation of the CNC program, accurate punching can be achieved, and the fixing component 4 has only a fixed connection point with the punching table 2 at the rear, and the front installation place remains empty, which is convenient for loading and unloading of the front fork assembly, which is conducive to improving work efficiency and safety, and is also more convenient for observing the processing process.

[0051] The power assembly 47 specifically includes a positioning groove 471 opened on the outside of the sleeve 43, a positioning ring plate 472 arranged on the outside of the positioning groove 471, a support spring 473 arranged between the top pressure sleeve 46 and the positioning ring plate 472, a mounting hole 474 opened on the surface of the positioning ring plate 472, an air cylinder 475 arranged inside the mounting hole 474, push rods 476 arranged at both ends of the air cylinder 475, an air hole 477 opened on the surface of the air cylinder 475, a through threaded hole 478 opened on the outside of the positioning ring plate 472, a hard air tube 4711 and a positioning threaded sleeve 4712 arranged inside the through threaded hole 478, a fixed threaded sleeve 4713 arranged at one end of the hard air tube 4711 away from the positioning ring plate 472, and a soft air tube 4714 arranged at one end of the fixed threaded sleeve 4713 away from the hard air tube 4711.

[0052] Specifically, the positioning groove 471 is annular, and the positioning ring plate 472 is clamped inside the positioning groove 471. The positioning ring plate 472 can rotate in the positioning groove 471. The positioning ring plate 472 is assembled by two semi-rings. The support spring 473 is sleeved on the outside of the sleeve 43, and the support spring 473 is welded to the top pressure sleeve 46. The outer thread of the sleeve 43 is installed with screws to limit the support spring 473. The air cylinder 475 passes through the positioning ring plate 472, and the two push rods 476 are in contact with the top pressure sleeve 46 and the fixed plate 41 respectively. The air cylinder 475 is located above the support spring 473 and passes through The threaded hole 478 passes through the interior of the mounting hole 474 and docks with the air hole 477. The hard air tube 4711 passes through the interior of the air hole 477, so that the air cylinder 475 can be locked in the mounting hole 474. The positioning threaded sleeve 4712 is threadedly connected to the through threaded hole 478. The positioning threaded sleeve 4712 is sleeved on the outside of the hard air tube 4711. The end of the soft air tube 4714 away from the fixed threaded sleeve 4713 is connected to the suction air pump. The force required to compress the support spring 473 is greater than the friction between the inner tube 42 and the sleeve 43, thereby ensuring the movement sequence of the inner tube 42 and the top pressure sleeve 46.

[0053] By setting up the power component 47, two pushing rods 476 respectively control the pushing sleeve 46 and the inner tube 42. When working, the pushing rod 476 first pushes the inner tube 42 to open the pushing plate 45, and then pushes the pushing sleeve 46. In this way, the successive movement of the pushing sleeve 46 and the pushing plate 45 can be realized through a power and a simple structure, without the need to use automated control components, so that the material cost and use cost of the equipment are lower, and the probability of failure is lower.

[0054] The power assembly 47 further includes a mounting bracket 479 disposed on the surface of the side wall 22 , and a locking threaded hole 4710 opened on the surface of the mounting bracket 479 .

[0055] Specifically, the mounting frame 479 is fixed to the side wall 22 by bolts, the locking threaded hole 4710 passes through the mounting frame 479 from top to bottom, the hard air pipe 4711 passes through the locking threaded hole 4710 from bottom to top, the fixed threaded sleeve 4713 is inserted into the locking threaded hole 4710 and is threadedly connected to the hard air pipe 4711.

[0056] An alignment assembly 6 is provided on the inner side of the punching table 2, and the alignment assembly 6 specifically includes a hydraulic telescopic rod 61 provided on the top of the base 21, a lifting platform 62 provided on the top of the hydraulic telescopic rod 61, and an auxiliary docking frame 63 provided on the lifting platform 62 close to the side wall 22.

[0057] Specifically, the hydraulic telescopic rod 61 is fixed to the base 21 by bolts, the lifting platform 62 is welded to the hydraulic telescopic rod 61, the top surface of the lifting platform 62 is flush with the top surface of the conveying equipment 1, and the horizontal height of the fixing component 4 is higher than the top surface of the lifting platform 62; the lifting platform 62 is convex in shape, and a U-shaped opening is provided above the auxiliary docking frame 63, and the arc surface at the bottom of the U-shaped opening is concentric with the sleeve 43, and the auxiliary docking frame 63 is fixed to the protruding part of the lifting platform 62 by bolts.

[0058] By setting the alignment component 6, during the process of installing the front fork assembly onto the fixing component 4, the front fork assembly can be first placed on the lifting platform 62, and then installed through the auxiliary docking frame 63. In this way, the staff does not need to lift the front fork assembly in the air for a long time, which can save labor and reduce the work intensity of the staff. At the same time, before fixing, the front fork assembly is completely fitted with the lifting platform 62, so that the front fork assembly can be kept in a horizontal state and the initial state positioning is completed. With the cooperation of the CNC program, precise drilling can be achieved.

[0059] Example 2, reference Figure 15-16 , is the second embodiment of the present invention, which is different from the first embodiment in that: an electric bicycle shock absorber includes a front fork assembly, the front fork assembly specifically includes an upper tube 71, a fork shoulder 72 arranged at one end of the upper tube 71, a stroke tube 73 arranged at both ends of the fork shoulder 72, and a fork tube 74 arranged at the end of the stroke tube 73 away from the fork shoulder 72. The upper tube 71 adopts an up and down through-through design, and the openings at both ends of the upper tube 71 adopt a forty-five degree chamfer design. The upper tube 71 penetrates the fork shoulder 72, and a sealing plug 8 is installed at the opening at one end of the upper tube 71 that penetrates the fork shoulder 72.

[0060] By designing the upper tube 71 to penetrate from top to bottom, a fixed installation position is provided for the fixing assembly 4. Meanwhile, the chamfers at the openings at both ends of the upper tube 71 can cooperate with the deflection plate 44 and the top pressure sleeve 46 to make the installation more stable.

[0061] An auxiliary component 9 is fixedly connected to the outer side of the fork shoulder 72 . The auxiliary component 9 specifically includes a fixing plate 91 disposed on the side of the fork shoulder 72 , a sliding ring sleeve 92 disposed on the surface of the fixing plate 91 , and a sliding cylinder 93 disposed inside the sliding ring sleeve 92 .

[0062] Specifically, the fixing plate 91 is fixed to the fork shoulder 72 by bolts, the sliding ring sleeve 92 is welded to the fixing plate 91, the sliding tube 93 is slidably sleeved in the sliding ring sleeve 92, limiting buckles are set on the surfaces of the fork tube 74 and the upper tube 71, the brake line passes through the limiting buckle and the sliding tube 93, and a rubber air cushion is set inside the sliding tube 93, which wraps and fixes the brake line.

[0063] By setting the auxiliary component 9, the brake line between the fork shoulder 72 and the fork cylinder 74 is kept in a straightened state, so that the brake line does not contact the stroke tube 73. When bumps occur, the position of the sliding cylinder 93 remains unchanged under the support of the brake line, and is relatively displaced with the sliding ring sleeve 92. The sliding cylinder 93 moves upward in the sliding ring sleeve 92. The brake line below the sliding cylinder 93 is always kept in a straightened state, and the upper part of the sliding cylinder 93 is bent, while the upper part of the sliding cylinder 93 is empty, so the possibility of friction between the brake line and other components is small, thereby extending the service life of the brake line.

[0064] Example 1, a laser drilling device for shock absorber front fork processing has the following working principle:

[0065] During installation, the two positioning ring plates 472 are respectively inserted into the positioning grooves 471, and then the two positioning ring plates 472 are fixed. Subsequently, the air cylinder 475 is passed through the mounting hole 474, and then the supporting spring 473 and the top pressure sleeve 46 are sleeved on the outside of the sleeve 43 in sequence; the deflection plate 44 is installed at one end of the sleeve 43, and then the inner tube 42 is fixed on the surface of the spring telescopic rod 5, and finally the sleeve 43 is sleeved on the outside of the inner tube 42.

[0066] Fix the pushing plate 45 to one end of the inner tube 42 extending out of the sleeve 43; pass the hard air tube 4711 through the mounting bracket 479 from bottom to top, and then fix the mounting bracket 479 on the surface of the side wall 22, adjust the air cylinder 475 left and right to make it centered, and then insert the hard air tube 4711 and the positioning threaded sleeve 4712 into the threaded hole 478, and extend the hard air tube 4711 into the air hole 477, rotate the positioning threaded sleeve 4712 to fix the hard air tube 4711, insert the fixed threaded sleeve 4713 into the locking threaded hole 4710, rotate the fixed threaded sleeve 4713 to connect it to the hard air tube 4711, and connect the end of the soft air tube 4714 away from the fixed threaded sleeve 4713 to the air pump, thus completing the installation of the fixing component 4.

[0067] The hydraulic telescopic rod 61 is fixed to the top of the base 21 , the protruding portion of the lifting platform 62 is kept facing the side wall 22 , and then the auxiliary docking frame 63 is fixed to the protruding portion of the lifting platform 62 .

[0068] During use, the conveying equipment 1 is started and the front fork assembly is continuously conveyed. When the front fork assembly is close to the punching table 2, the staff first raises the lifting platform 62 to be flush with the conveying equipment 1 through the hydraulic telescopic rod 61, and then takes the front fork assembly and places it on the lifting platform 62, adjusts the front fork assembly so that one end is inserted into the auxiliary docking frame 63, and pushes the front fork assembly toward the side wall 22 so that the front fork assembly is partially sleeved on the outside of the sleeve 43, and one end of the front fork assembly is in contact with the top pressure sleeve 46.

[0069] The staff adjusts the front fork assembly to place it horizontally above the lifting platform 62, and then starts the air pump. The air pump injects air into the air cylinder 475 through the soft air pipe 4714, the fixed threaded sleeve 4713, and the hard air pipe 4711. The pressure in the air cylinder 475 increases, and the two ejector rods 476 are both pushed outward. The top pressure sleeve 46 is restricted by the support spring 473. Therefore, the ejector rod 476 at this end cannot move, and the ejector rod 476 at the other end will move first, pushing the fixed plate 41. The fixed plate 41 compresses the spring telescopic rod 5 and moves it toward the punching table 2. The fixed plate 41 drives the sleeve 43 to move synchronously through the inner tube 42, and the push plate 45 moves past During the rotation process, the deflection plate 44 is pushed outward through the inclined surface on the inner side of the deflection plate 44, so that the deflection plate 44 is expanded to the surroundings. After the deflection plate 44 is deflected forty-five degrees, it can no longer rotate, and the movement of the inner tube 42 and the fixed plate 41 is also restricted, and the push rod 476 also stops moving. As the pressure accumulates in the air cylinder 475, the push rod 476 on the other side starts to move, pushing the top pressure sleeve 46. The top pressure sleeve 46 stretches the support spring 473 to push the front fork assembly. The front fork assembly slides on the outside of the sleeve 43 until the other end of the front fork assembly contacts the deflection plate 44. The top pressure sleeve 46 continues to move and applies pressure to clamp the front fork assembly between the top pressure sleeve 46 and the deflection plate 44.

[0070] After the fixation is completed, the hydraulic telescopic rod 61 drives the lifting platform 62 to descend, the lifting platform 62 is separated from the front fork assembly, the CNC program is started, and the driving motor drives the fixing assembly 4 to rotate through the spring telescopic rod 5 to adjust the angle of the front fork assembly, and the laser drilling arm 3 adjusts its position to perform drilling work.

[0071] Embodiment 2, the working principle of an electric bicycle shock absorber is as follows:

[0072] During installation, install the sliding ring sleeve 92 into the sliding ring sleeve 92, then fix the fixing plate 91 to the surface of the fork shoulder 72, then pass one end of the brake cable through the limiting buckle and the sliding cylinder 93 from bottom to top, pull the brake cable, so that the brake cable between the fork shoulder 72 and the fork cylinder 74 is kept in a straightened state, and then insert the sealing plug 8 into the upper tube 71.

[0073] When in use, the brake line between the fork shoulder 72 and the fork cylinder 74 is kept in a straightened state, so that the brake line does not contact the stroke tube 73. When bumps occur, the distance between the fork shoulder 72 and the fork cylinder 74 becomes shorter. Under the support of the brake line, the sliding cylinder 93 remains in an unchanged position and is relatively displaced with the sliding ring sleeve 92. The sliding cylinder 93 moves upward in the sliding ring sleeve 92. The brake line below the sliding cylinder 93 is always kept in a straightened state, and the top of the sliding cylinder 93 is bent, while the top of the sliding cylinder 93 is empty, and the possibility of friction between the brake line and other components is small.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A laser drilling device for processing a shock absorber front fork, used for processing a front fork assembly, comprising two conveying devices (1), a drilling table (2) arranged between the two conveying devices (1), and a laser drilling arm (3) arranged in the drilling table (2), characterized in that: It also includes a fixing assembly (4) arranged on the surface of the punching platform (2), a spring telescopic rod (5) arranged inside the punching platform (2), wherein the fixing assembly (4) specifically includes a fixing plate (41) arranged on the surface of the spring telescopic rod (5), an inner tube (42) arranged on the side of the fixing plate (41) away from the spring telescopic rod (5), a sleeve (43) arranged on the outside of the inner tube (42), a deflection plate (44) arranged on one end of the sleeve (43) away from the spring telescopic rod (5), a pushing plate (45) arranged on one end of the inner tube (42) away from the spring telescopic rod (5), a top pressure sleeve (46) arranged on the outside of the sleeve (43), and a power assembly (47) arranged on the outside of the sleeve (43); The punching platform (2) comprises a base (21), a side wall (22) and a top platform (23); a spring telescopic rod (5) is rotatably mounted inside the side wall (22); one end of the spring telescopic rod (5) extends out of the side wall (22) and the other end is mounted with a driving motor; a sleeve (43) passes through the front fork assembly; a deflection plate (44) is distributed in a circular array along the contour of the sleeve (43); the deflection plate (44) is wrapped around the outer side of the push plate (45); the inner wall of the deflection plate (44) is inclined and thicker at one end close to the sleeve (43); a top pressure sleeve (46) and the deflection plate (44) are respectively distributed at two ends of the sleeve (43); and the end of the top pressure sleeve (46) close to the deflection plate (44) is tapered.

2. The laser drilling equipment for shock absorber front fork processing according to claim 1, characterized in that: The difference between the outer diameter of the sleeve (43) and the inner diameter of the portion of the front fork assembly penetrated by the sleeve (43) is not less than one centimeter.

3. The laser drilling equipment for shock absorber front fork processing according to claim 2, characterized in that: The power assembly (47) specifically includes a positioning groove (471) provided on the outside of the sleeve (43), a positioning ring plate (472) provided on the outside of the positioning groove (471), a support spring (473) provided between the top pressure sleeve (46) and the positioning ring plate (472), a mounting hole (474) provided on the surface of the positioning ring plate (472), an air cylinder (475) provided inside the mounting hole (474), and push rods (476) provided at both ends of the air cylinder (475). An air hole (477) is provided on the surface of the air cylinder (475), a through threaded hole (478) is provided on the outside of the positioning ring plate (472), a hard air tube (4711) and a positioning threaded sleeve (4712) are arranged inside the through threaded hole (478), a fixed threaded sleeve (4713) is arranged at one end of the hard air tube (4711) away from the positioning ring plate (472), and a soft air tube (4714) is arranged at one end of the fixed threaded sleeve (4713) away from the hard air tube (4711); The through threaded hole (478) penetrates into the interior of the mounting hole (474) and docks with the air hole (477). The two push rods (476) are in contact with the top pressure sleeve (46) and the fixing plate (41) respectively. The positioning threaded sleeve (4712) is sleeved on the outside of the hard air tube (4711). The end of the soft air tube (4714) away from the fixed threaded sleeve (4713) is connected to the suction air pump.

4. The laser drilling equipment for shock absorber front fork processing according to claim 3 is characterized in that: The force required to compress the support spring (473) is greater than the friction force between the inner tube (42) and the sleeve (43).

5. The laser drilling equipment for shock absorber front fork processing according to claim 4, characterized in that: The hard air tube (4711) penetrates into the air hole (477).

6. The laser drilling equipment for shock absorber front fork processing according to claim 5, characterized in that: The power assembly (47) further includes a mounting frame (479) disposed on the surface of the side wall (22), and a locking threaded hole (4710) provided on the surface of the mounting frame (479); The hard air tube (4711) penetrates the locking threaded hole (4710) from bottom to top, and the fixed threaded sleeve (4713) is inserted into the locking threaded hole (4710) and is threadedly connected to the hard air tube (4711).

7. The laser drilling equipment for shock absorber front fork processing according to claim 6, characterized in that: An alignment component (6) is arranged on the inner side of the punching table (2), and the alignment component (6) specifically comprises a hydraulic telescopic rod (61) arranged on the top of the base (21), a lifting platform (62) arranged on the top of the hydraulic telescopic rod (61), and an auxiliary docking frame (63) arranged on the lifting platform (62) near the side wall (22); The top surface of the lifting platform (62) is flush with the top surface of the conveying device (1), and the horizontal height of the fixing component (4) is higher than the top surface of the lifting platform (62).

8. The laser drilling equipment for shock absorber front fork processing according to claim 7, characterized in that: The lifting platform (62) is in a convex shape, a U-shaped opening is provided above the auxiliary docking frame (63), and the arc surface at the bottom of the U-shaped opening is concentric with the sleeve (43).

9. An electric bicycle shock absorber, comprising the front fork assembly according to claim 8, the front fork assembly specifically comprising an upper tube (71), a fork shoulder (72) arranged at one end of the upper tube (71), a stroke tube (73) arranged at both ends of the fork shoulder (72), and a fork cylinder (74) arranged at the end of the stroke tube (73) away from the fork shoulder (72), characterized in that: The upper tube (71) adopts a top-to-bottom through-design, and both openings of the upper tube (71) adopt a 45-degree chamfer design. The upper tube (71) penetrates the fork shoulder (72), and a sealing plug (8) is installed at the opening of one end of the upper tube (71) penetrating the fork shoulder (72).

10. The shock absorber for electric bicycle according to claim 9, characterized in that: The outer side of the fork shoulder (72) is fixedly connected with an auxiliary component (9), and the auxiliary component (9) specifically comprises a fixing plate (91) arranged on the side of the fork shoulder (72), a sliding ring sleeve (92) arranged on the surface of the fixing plate (91), and a sliding cylinder (93) arranged inside the sliding ring sleeve (92).

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