A polishing device for automobile bushing processing

Abstract

The invention relates to the technical field of automobile bushing polishing, and discloses a polishing device for automobile bushing processing, comprising a base plate, a plurality of equidistantly distributed placement seats are fixed on the base plate, bushing bodies are placed on the plurality of placement seats, a polishing head is provided at one end of the bushing body, a servo electric cylinder is fixed on the base plate, a strip mounting plate is connected at one end of the servo electric cylinder, a plurality of equidistantly distributed first hollow rods are rotatably connected to the strip mounting plate, a second hollow rod is slidably connected at one end of the first hollow rod, the polishing head is fixed on the second hollow rod, and the second hollow rod is elastically connected to the first hollow rod via a first spring; the plurality of polishing heads can extend into the interior of the plurality of bushing bodies for polishing treatment, and the plurality of bushing bodies can be polished at the same time, thereby greatly improving the polishing efficiency of the bushing bodies.

Description

Technical Field

[0001] The invention relates to the technical field of automobile bushing polishing, in particular to a polishing device for automobile bushing processing. Background Art

[0002] Automobile shock-absorbing bushings are usually installed in the suspension system of the automobile chassis. The main purpose is to reduce the vibration and noise generated by the vehicle during driving, improve ride comfort and the overall performance of the vehicle. Shock-absorbing bushings are usually made of metal sleeves and rubber materials. The metal sleeve is used for limiting and supporting, while the rubber part deforms when subjected to external force to absorb vibration energy. This design can effectively reduce the transmission of vibration to the vehicle body and other parts, thereby protecting the vehicle from damage. The working principle of the shock-absorbing bushing: The shock-absorbing bushing reduces the vibration and bumps of the vehicle during driving by absorbing and consuming vibration energy.

[0003] During the processing of automobile bushings, polishing equipment is required to polish the inner wall. The main purpose is to remove surface defects, improve surface quality and extend service life, and reduce friction between the bushing and the automobile connecting shaft. At present, polishing equipment mainly uses bolts to fix the bushing on the fixture. During the fixing process, multiple bolts need to be tightened, and the material needs to be disassembled after polishing. The whole process is time-consuming and labor-intensive, resulting in low efficiency of workpiece polishing, which affects the production efficiency of automobile bushings. Summary of the invention

[0004] The present invention provides a polishing device for automobile bushing processing, which is equipped with a plurality of polishing heads capable of extending into the interior of a plurality of bushing bodies for polishing processing. A plurality of bushing bodies can be polished simultaneously, which greatly improves the beneficial effect of the polishing efficiency of the bushing bodies. The present invention solves the problem mentioned in the above background technology that the current polishing equipment mainly adopts bolt fixing to fix the bushing on the fixture, and a plurality of bolts need to be tightened during the fixing process. After the polishing processing, the material needs to be disassembled and unloaded, and the whole process is time-consuming and labor-intensive, resulting in low workpiece polishing processing efficiency, thereby affecting the processing efficiency of automobile bushings.

[0005] The present invention provides the following technical solution: a polishing device for automobile bushing processing, comprising a bottom plate, a plurality of equally spaced placement seats are fixed on the bottom plate, bushing bodies are placed on the plurality of placement seats, a polishing head is provided at one end of the bushing body, a servo electric cylinder is fixed on the bottom plate, a strip mounting plate is connected at one end of the servo electric cylinder, a plurality of equally spaced first hollow rods are rotatably connected to the strip mounting plate, a second hollow rod is slidably connected at one end of the first hollow rod, the polishing head is fixed on the second hollow rod, and the second hollow rod is elastically connected to the first hollow rod through a first spring;

[0006] A hollow tube is arranged at one end of the second hollow rod, a dust collection box is arranged on the hollow tube, a cleaning brush plate is slidably connected to the dust collection box, and a motor assembly for driving the first hollow rod to rotate is arranged on the strip mounting plate.

[0007] As an optional solution of the polishing device for automobile bushing processing described in the present invention, clamping heads are provided on both sides of the placement seat, an L-shaped bracket is fixed to one end of the clamping head, the L-shaped bracket is elastically connected to the placement seat through a second spring, one end of the L-shaped bracket abuts against a seesaw, the seesaw is rotatably connected to the placement seat, and a first torsion spring is connected between the seesaw and the placement seat.

[0008] As an optional solution of the polishing device for automobile bushing processing described in the present invention, one end of the seesaw is in contact with a first contact head, the first contact head is elastically connected to the placement seat through a third spring, and a contact strip that contacts the first contact head is fixed on the strip mounting plate.

[0009] As an optional solution of the polishing device for automobile bushing processing described in the present invention, the motor assembly includes a servo motor, the servo motor is fixed on the strip mounting plate, and a first gear is installed on the motor shaft of the servo motor, a second gear is installed on the first hollow rod, and the second gear is meshed with the first gear.

[0010] As an optional solution of the polishing device for automobile bushing processing described in the present invention, wherein: a second contact head is connected to the second hollow rod, one end of the second contact head is in contact with a third contact head, the third contact head is elastically connected to the first hollow rod through a fourth spring, a plurality of circumferentially equidistantly distributed contact columns are provided on the strip mounting plate, a guide block is fixed on the base plate, a guide rod is fixed on the strip mounting plate, and the guide rod is slidably connected to the guide block.

[0011] As an optional solution of the polishing device for automobile bushing processing described in the present invention, a first rotating joint is arranged on the other end of the first hollow rod, a round rod is arranged in the hollow tube, the round rod is elastically connected to one end of the second hollow rod through a fifth spring, and a circular sheet is fixed to one end of the round rod, and an adsorption flow groove is opened on the second hollow rod.

[0012] As an optional solution of the polishing device for automobile bushing processing described in the present invention, wherein: a plurality of suction ports are arranged on the circumferential surface of the hollow tube, the hollow tube is connected to the dust collection box, a sliding rod is fixed on the cleaning brush plate, the sliding rod is elastically connected to the hollow tube through a sixth spring, a first contact wedge is fixed on the round rod, and the first contact wedge contacts one end of the sliding rod.

[0013] As an optional scheme of the polishing device for processing automobile bushings described in the present invention, wherein: a piston cylinder is provided at the other end of the bushing body, a plurality of bearing frames are fixed on the base plate, a hollow piston rod is rotatably connected to the bearing frame, the piston cylinder is elastically connected to the hollow piston rod through a seventh spring, and a piston plate is fixed at the end of the hollow piston rod, the piston plate is slidably connected in the piston cylinder, a liquid inlet hole is provided on the hollow piston rod, a liquid infusion channel is provided on the piston cylinder, and the other end of the hollow piston rod is connected to a second rotary joint.

[0014] As an optional scheme of the polishing device for processing automobile bushings described in the present invention, wherein: a cavity is provided at one end of the piston cylinder, a plurality of nozzles are provided in the cavity, the nozzles are rotatably connected to the piston cylinder, and a second torsion spring is connected between the nozzles and the piston cylinder, the infusion channel is connected to the plurality of nozzles through a pipeline, a smear brush is fixed on the circumferential surface of the piston cylinder, a strip groove is provided on the piston cylinder, a wave resistance bracket is provided in the strip groove, the wave resistance bracket is elastically connected to the piston cylinder through an eighth spring, a resistance ring is provided in the cavity, the resistance ring is elastically connected to the piston cylinder through a ninth spring, one end of the wave resistance bracket is in resistance to the resistance ring, and one end of the resistance ring is in resistance to one end of the nozzle.

[0015] As an optional solution of the polishing device for automobile bushing processing described in the present invention, a slot is provided on the piston cylinder, one end of the hollow tube is slidably connected to a spring telescopic rod, a wedge-shaped block is fixed to the upper end of the spring telescopic rod, and a tenth spring is connected between the spring telescopic rod and the hollow tube, the lower end of the spring telescopic rod is against the round rod, and the other end of the round rod is provided with a contact inclined surface.

[0016] The present invention has the following beneficial effects:

[0017] 1. In the polishing device for automobile bushing processing, several bushing bodies to be polished can be placed through several placement seats arranged on the bottom plate, the first hollow rod rotatably connected to the second hollow rod is conveniently connected to the second hollow rod through the strip mounting plate, the first hollow rod can be driven to rotate through the motor assembly, so that the second hollow rod and the polishing head can rotate and work, the position of the strip mounting plate can be adjusted through the servo electric cylinder, so that several polishing heads can be inserted into the interior of several bushing bodies for polishing, and several bushing bodies can be polished at the same time, which greatly improves the polishing efficiency of the bushing bodies;

[0018] At the same time, when the contact strip moves synchronously with the strip mounting plate, it can come into contact with the first contact head, causing the seesaw to be deflected by the contact force of the first contact head, and pushing the L-shaped bracket fixed at one end of the clamping head to move horizontally, so as to achieve the purpose of automatically clamping and fixing the bushing body by horizontally sliding the clamping head on both sides of the placement seat, greatly improving the convenience of clamping the bushing body, saving time and effort, and improving the production efficiency of automobile bushings. When the first hollow rod rotates, it can achieve the purpose of driving the third contact head to have intermittent and continuous contact with the contact columns on several strip mounting plates, causing the third contact head to come into contact with the second contact head, so as to achieve the purpose of the second hollow rod driving the polishing head to move horizontally back and forth on the first hollow rod, and improve the effect of the polishing head on the polishing treatment of the bushing body.

[0019] 2. In the polishing device for automobile bushing processing, the cleaning brush plate is conveniently installed through the dust collection box arranged on the hollow tube, so that the cleaning brush plate can clean up the waste chips on the inner wall of the bushing body when the polishing head returns to polish, thereby improving the quality of polishing. The purpose of connecting with the negative pressure adsorption device can be achieved through the first rotating joint arranged on the first hollow rod, so that the negative pressure gas can flow into the hollow tube during the rotation of the first hollow rod, and a part of the negative pressure gas can flow into the inside of the bushing body through a plurality of suction ports to absorb and dry the waste chips generated during polishing. The cleaning brush plate is cleaned by the circular sheet arranged at one end of the round rod, and the circular sheet is affected by the adsorption force to drive the round rod to move horizontally in the hollow tube, so as to realize the purpose of the first contact wedge block on the round rod contacting with the sliding rod at the lower end of the cleaning brush plate, thereby prompting the cleaning brush plate to move vertically on the dust box, so as to be close to the inner wall of the bushing body and improve the effect of cleaning the waste chips.

[0020] 3. In the polishing device for automobile bushing processing, the bearing frame can be rotatably connected with the hollow piston rod, the piston sheet arranged on the hollow piston rod can slide on the piston cylinder, and can be connected with the chemical reagent delivery equipment through the second rotary joint, so that the chemical reagent can be injected from the hollow piston rod into the piston cylinder for storage, and the spring telescopic rod arranged on the hollow tube is conveniently fixedly connected with the wedge-shaped block, and as the second hollow rod drives the polishing head to continuously rotate and move in the bushing body, the spring telescopic rod connected to the end of the hollow tube and the fixed wedge-shaped block gradually approach one end of the piston cylinder, and when the wedge-shaped block is resisted by the piston cylinder, the spring telescopic rod is The spring telescopic rod is retracted so that the spring telescopic rod can be extended into the cavity, which can facilitate the wedge-shaped card block to be quickly inserted into the card slot, so that the piston cylinder can be connected with the hollow tube, and the piston cylinder can be rotated and moved on the hollow piston rod. During the movement, the piston plate squeezes the chemical reagent. When the piston cylinder is brought into the bushing body, the chemical reagent can flow into the nozzle through the infusion channel to spray the part where the waste chips are cleaned, and the chemical reagent can be evenly applied to the inner wall of the bushing body through the smearing brush, which can prevent the bushing body from oxidation and rust after polishing, and can achieve the purpose of improving the polishing quality of the bushing body.

[0021] The wave-shaped friction bracket arranged on the piston cylinder can intermittently and continuously frictionally contact the piston plate, so that the wave-shaped friction bracket can continuously frictionally contact the friction ring, so that the friction ring can move back and forth and frictionally contact with a plurality of nozzles, so that the nozzles can be deflected on the piston cylinder under the influence of the friction force, thereby improving the spraying effect of the chemical reagents and reducing the dead angle of the spraying. When the spraying of the chemical reagents is completed, the flow rate of the negative pressure gas is increased to cause the round rod to continue to move horizontally, so that the friction slope and the spring telescopic rod are released from friction, so that the wedge-shaped block is disengaged from the groove, which facilitates the automatic resetting of the piston cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a cross-sectional view of the second hollow rod structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the placement seat of the present invention.

[0025] Figure 4 It is a schematic diagram of the piston cylinder structure of the present invention.

[0026] Figure 5 It is a cross-sectional view of the piston cylinder structure of the present invention.

[0027] Figure 6 for Figure 2 A partial enlarged schematic diagram in the middle.

[0028] Figure 7 for Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0029] Figure 8 for Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0030] In the figure: 1, bottom plate; 2, placement seat; 3, bushing body; 4, polishing head; 5, servo electric cylinder; 6, strip mounting plate; 61, servo motor; 62, first gear; 63, second gear; 7, first hollow rod; 8, second hollow rod; 9, first spring; 10, hollow tube; 11, dust box; 12, cleaning brush plate; 13, clamping head; 14, L-shaped bracket; 15, second spring; 16, rocker; 17, first torsion spring; 18, first contact head; 181, third spring; 19, contact strip; 20, second contact head; 21, third contact head; 22, fourth spring; 23, contact column; 24, guide block; 25, guide rod; 26, first rotary joint; 2 7. Round rod; 28. Fifth spring; 29. ​​Round sheet; 30. Adsorption flow slot; 31. Absorption port; 32. Sliding rod; 33. Sixth spring; 34. First abutment wedge; 35. Piston cylinder; 36. Support frame; 37. Hollow piston rod; 38. Seventh spring; 39. Piston sheet; 40. Liquid inlet hole; 41. Infusion channel; 42. Cavity; 43. Nozzle; 44. Second torsion spring; 45. Applicator brush; 46. Strip notch; 47. Second rotary joint; 48. Wave abutment bracket; 49. Eighth spring; 50. Abutment ring; 51. Ninth spring; 52. Slot; 53. Spring telescopic rod; 54. Wedge-shaped block; 55. Tenth spring; 56. Abutment slope. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] For example, see Figures 1 to 8A polishing device for automobile bushing processing, comprising a base plate 1, a plurality of equally spaced placement seats 2 are fixed on the base plate 1, a bushing body 3 is placed on each of the plurality of placement seats 2, a polishing head 4 is provided at one end of the bushing body 3, a servo electric cylinder 5 is fixed on the base plate 1, a strip mounting plate 6 is connected to one end of the servo electric cylinder 5, a plurality of equally spaced first hollow rods 7 are rotatably connected to the strip mounting plate 6, a second hollow rod 8 is slidably connected to one end of the first hollow rod 7, the polishing head 4 is fixed on the second hollow rod 8, and the second hollow rod 8 is elastically connected to the first hollow rod 7 through a first spring 9;

[0033] A hollow tube 10 is provided at one end of the second hollow rod 8 , a dust collection box 11 is provided on the hollow tube 10 , a cleaning brush plate 12 is slidably connected to the dust collection box 11 , and a motor assembly for driving the first hollow rod 7 to rotate is provided on the strip mounting plate 6 .

[0034] A clamping head 13 is provided on both sides of the placement seat 2, and an L-shaped bracket 14 is fixed at one end of the clamping head 13. The L-shaped bracket 14 is elastically connected to the placement seat 2 through a second spring 15. One end of the L-shaped bracket 14 abuts against a seesaw 16, and the seesaw 16 is rotatably connected to the placement seat 2. A first torsion spring 17 is connected between the seesaw 16 and the placement seat 2.

[0035] One end of the seesaw 16 abuts against a first abutting head 18 , which is elastically connected to the placement seat 2 via a third spring 181 , and a abutting strip 19 abutting against the first abutting head 18 is fixed on the strip-shaped mounting plate 6 .

[0036] The motor assembly includes a servo motor 61 , which is fixed on the strip-shaped mounting plate 6 , and a first gear 62 is installed on the motor shaft of the servo motor 61 , and a second gear 63 is installed on the first hollow rod 7 , and the second gear 63 and the first gear 62 are meshed with each other.

[0037] The second hollow rod 8 is connected to a second contact head 20, one end of which is in contact with a third contact head 21. The third contact head 21 is elastically connected to the first hollow rod 7 via a fourth spring 22. The strip mounting plate 6 is provided with a plurality of circumferentially equidistantly distributed contact columns 23. The base plate 1 is fixed with a guide block 24. The strip mounting plate 6 is fixed with a guide rod 25, which is slidably connected to the guide block 24.

[0038] When polishing the automotive bushing, refer to Figure 1-Figure 3, place several bushing bodies 3 to be polished in several placement seats 2 on the bottom plate 1 in sequence, start the servo motor 61 in the motor assembly, and the motor shaft of the servo motor 61 drives the first gear 62 to rotate. When the first gear 62 is engaged with the second gear 63, the first hollow rod 7 can be driven to rotate on the strip mounting plate 6, so that the second hollow rod 8 and the polishing head 4 can rotate and work. When the piston rod of the servo electric cylinder 5 is retracted, the position of the strip mounting plate 6 can be adjusted, and the horizontal movement position of several polishing heads 4 can be adjusted. At the same time, the guide rod 25 slides on the guide block 24, which can improve the stability of the horizontal movement of the strip mounting plate 6, thereby causing the polishing head 4 to gradually extend into the interior of the several bushing bodies 3. At the same time, the resistance connected below the strip mounting plate 6 The strip 19 moves synchronously with the strip mounting plate 6, and can achieve the purpose of conflicting with the two first contact heads 18 inside the placement seat 2, prompting the two first contact heads 18 to move in opposite directions. The third spring 181 accumulates force, which can push the seesaw 16 rotatably connected on the placement seat 2 to deflect. The first torsion spring 17 accumulates force. After the seesaw 16 is deflected, it can push the L-shaped bracket 14 to move horizontally on the placement seat 2. The second spring 15 accumulates force, which can achieve the purpose of the two clamping heads 13 moving toward each other to automatically clamp the bushing body 3 in the placement seat 2. When the polishing head 4 extends into the inner wall of the bushing body 3 for polishing, the conflicting strip 19 continues to move in the placement seat 2, and can polish several bushing bodies 3 at the same time, greatly improving the polishing efficiency of the bushing body 3.

[0039] In order to improve the polishing effect of the polishing head 4 on the bushing body 3, refer to Figure 2-Figure 6 During the rotation, the first hollow rod 7 can drive the third contact head 21 to rotate. During the rotation, the third contact head 21 can achieve the purpose of intermittent and continuous contact with a number of circumferentially equidistantly distributed contact columns 23 on the strip mounting plate 6, so that the third contact head 21 slides on the first hollow rod 7 under the contact. The fourth spring 22 accumulates force, so that the third contact head 21 can be in contact with the second contact head 20 connected to the second hollow rod 8, so that the second hollow rod 8 can reciprocate on the first hollow rod 7. The first spring 9 continuously accumulates force and releases elastic force, so that the polishing head 4 can reciprocate during polishing, which can improve the effect of removing stubborn stains and further improve the polishing quality of the bushing body 3.

[0040] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figures 1 to 8 A first rotating joint 26 is provided on the other end of the first hollow rod 7, and a round rod 27 is provided in the hollow tube 10. The round rod 27 is elastically connected to one end of the second hollow rod 8 through a fifth spring 28, and a circular sheet 29 is fixed to one end of the round rod 27. An adsorption flow groove 30 is opened on the second hollow rod 8.

[0041] A plurality of suction ports 31 are provided on the circumferential surface of the hollow tube 10, the hollow tube 10 is connected to the dust collection box 11, a sliding rod 32 is fixed on the cleaning brush plate 12, the sliding rod 32 is elastically connected to the hollow tube 10 through a sixth spring 33, a first abutting wedge 34 is fixed on the round rod 27, and the first abutting wedge 34 abuts against one end of the sliding rod 32.

[0042] When the polishing head 4 initially polishes the inner wall of the bushing body 3, the cleaning brush plate 12 does not need to clean the bushing body 3 to reduce the wear of the cleaning brush plate 12. When applying the chemical reagent, the cleaning brush plate 12 is required to clean the waste generated by the polishing process so that the chemical reagent is fully attached to the inner wall of the bushing body 3 to improve the protection effect. Figure 1-Figure 6 When the polishing head 4 moves to the other end of the bushing body 3 to complete the preliminary polishing and needs to return for polishing again, the negative pressure adsorption device connected to the first rotating joint 26 at the end of the first hollow rod 7 is started. The negative pressure gas generated by the negative pressure adsorption device can flow into the second hollow rod 8 as the first hollow rod 7 rotates. When the circular piece 29 set at one end of the round rod 27 contacts with the negative pressure gas, it can be affected by the adsorption force and drive the round rod 27 to slide horizontally in the hollow tube 10. The fifth spring 28 accumulates force. During the movement of the round rod 27, the first abutting wedge 34 can be driven to abut against one end of the sliding rod 32, prompting the sliding rod 32 to move vertically in the hollow tube 10. Sliding can achieve the purpose of the cleaning brush plate 12 sliding in the dust box 11, so as to press against the inner wall of the bushing body 3. The sixth spring 33 accumulates force, and with the rotation of the polishing head 4, the cleaning brush plate 12 can clean up the waste chips on the inner wall of the bushing body 3. At the same time, the negative pressure gas flows into the hollow tube 10 through the adsorption flow groove 30, and a part of the negative pressure gas flows into the bushing body 3 through a plurality of suction ports 31 to absorb and clean the waste chips generated during polishing. At the same time, another part of the negative pressure gas flows into the dust box 11 to absorb and clean the waste chips attached to the cleaning brush plate 12, so that the waste chips can finally flow into the negative pressure adsorption equipment for centralized treatment.

[0043] Embodiment 3: This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figures 1 to 8 A piston cylinder 35 is provided at the other end of the bushing body 3, and a plurality of bearing frames 36 are fixed on the bottom plate 1. A hollow piston rod 37 is rotatably connected to the bearing frame 36. The piston cylinder 35 is elastically connected to the hollow piston rod 37 through a seventh spring 38, and a piston sheet 39 is fixed at the end of the hollow piston rod 37. The piston sheet 39 is slidably connected in the piston cylinder 35. A liquid inlet hole 40 is provided on the hollow piston rod 37, and an infusion channel 41 is provided on the piston cylinder 35. The other end of the hollow piston rod 37 is connected to a second rotary joint 47.

[0044] A cavity 42 is provided at one end of the piston cylinder 35, and a plurality of nozzles 43 are provided in the cavity 42. The nozzles 43 are rotatably connected to the piston cylinder 35, and a second torsion spring 44 is connected between the nozzles 43 and the piston cylinder 35. The infusion channel 41 is connected to the plurality of nozzles 43 through a pipeline. A smear brush piece 45 is fixed on the circumferential surface of the piston cylinder 35. A strip groove 46 is provided on the piston cylinder 35, and a wave resistance bracket 48 is provided in the strip groove 46. The wave resistance bracket 48 is elastically connected to the piston cylinder 35 through an eighth spring 49. A resistance ring 50 is provided in the cavity 42, and the resistance ring 50 is elastically connected to the piston cylinder 35 through a ninth spring 51. One end of the wave resistance bracket 48 is in resistance to the resistance ring 50, and one end of the resistance ring 50 is in resistance to one end of the nozzle 43.

[0045] A card slot 52 is provided on the piston cylinder 35, and a spring telescopic rod 53 is slidably connected to one end of the hollow tube 10. A wedge-shaped block 54 is fixed to the upper end of the spring telescopic rod 53, and a tenth spring 55 is connected between the spring telescopic rod 53 and the hollow tube 10. The lower end of the spring telescopic rod 53 abuts against the round rod 27, and the other end of the round rod 27 is provided with an abutting inclined surface 56.

[0046] In order to prevent the bushing body 3 from oxidation and rust after polishing, it is necessary to spray a chemical protective agent on the inner wall of the bushing body 3. Figure 4-Figure 8 When the polishing head 4 initially completes the polishing of the inner wall of the bushing body 3, the piston rod of the servo electric cylinder 5 retracts to drive the strip mounting plate 6 to move, so that the spring telescopic rod 53 arranged on the hollow tube 10 gradually approaches the cavity 42 of the piston cylinder 35 during the rotation process. When the hollow tube 10 abuts against the piston cylinder 35, the wedge-shaped block 54 fixed on the spring telescopic rod 53 is resisted by the piston cylinder 35, prompting the spring telescopic rod 53 to retract itself, so that the wedge-shaped block 54 can move to the inside of the cavity 42. Since the lower end of the spring telescopic rod 53 abuts against the round rod 27, the overall position of the spring telescopic rod 53 remains unchanged, which facilitates the rapid insertion of the wedge-shaped block 54 when it encounters the card slot 52, so that the piston cylinder 35 can be connected with the hollow tube 10. When the piston rod of the servo electric cylinder 5 is extended, the purpose of return polishing of the polishing head 4 can be achieved. At the same time, the piston cylinder 35 rotates and moves on the hollow piston rod 37, and the hollow piston rod 37 rotates on the bearing frame 36.

[0047] The second rotary joint 47 is provided to be connected with the chemical reagent delivery equipment, so that the chemical reagent can be injected into the piston cylinder 35 from the liquid inlet hole 40 opened on the hollow piston rod 37 for storage. When one end of the piston cylinder 35 is moved and the rotating hollow tube 10 is dragged into the interior of the cleaning bushing body 3, the piston cylinder 35 can be moved while rotating on the hollow piston rod 37. The seventh spring 38 accumulates force, and the piston plate 39 squeezes the chemical reagent during the movement, so that the chemical reagent can flow into the nozzle 43 through the infusion channel 41 to spray the part where the waste chips are cleaned. At the same time, the chemical reagent is evenly applied to the inner wall of the bushing body 3 through the smear brush plate 45 fixed on the circumferential surface of the piston cylinder 35, which can prevent the oxidation and rust of the bushing body 3 after polishing, and can achieve the purpose of improving the polishing quality of the bushing body 3.

[0048] When the piston cylinder 35 moves, the wave-resistance bracket 48 provided on the piston cylinder 35 can intermittently and continuously resist the piston sheet 39, so that the wave-resistance bracket 48 can continuously resist the resistance ring 50, and the eighth spring 49 continuously stores force and releases elastic force. When the resistance ring 50 is affected by the resistance force, it can reciprocate and resist with a plurality of nozzles 43. The ninth spring 51 continuously stores force and releases elasticity, so that the nozzle 43 can be affected by the resistance force and deflect on the piston cylinder 35. The purpose of rotation is that the second torsion spring 44 accumulates force to improve the spraying effect of the chemical reagent, thereby reducing the dead angle of spraying. When the chemical reagent is sprayed, by increasing the flow rate of the negative pressure gas, the round rod 27 is prompted to continue to move horizontally, the conflicting inclined surface 56 and the spring telescopic rod 53 are released from the conflict, and the spring telescopic rod 53 is prompted to retract as a whole, so that the wedge-shaped block 54 is disengaged from the card slot 52, so that the hollow tube 10 is disengaged from the piston cylinder 35, so that the piston cylinder 35 is automatically reset under the elastic force of the seventh spring 38.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A polishing device for automobile bushing processing, comprising a base plate, characterized in that: A plurality of equally spaced placement seats are fixed on the bottom plate, a bushing body is placed on each of the placement seats, a polishing head is provided at one end of the bushing body, a servo electric cylinder is fixed on the bottom plate, one end of the servo electric cylinder is connected to a strip mounting plate, a plurality of equally spaced first hollow rods are rotatably connected to the strip mounting plate, one end of the first hollow rod is slidably connected to a second hollow rod, the polishing head is fixed on the second hollow rod, and the second hollow rod is elastically connected to the first hollow rod through a first spring; A hollow tube is provided at one end of the second hollow rod, a dust collection box is provided on the hollow tube, a cleaning brush plate is slidably connected to the dust collection box, and a motor assembly for driving the first hollow rod to rotate is provided on the strip-shaped mounting plate, and the motor assembly includes a servo motor; A clamping head is provided on both sides of the placement seat, an L-shaped bracket is fixed to one end of the clamping head, the L-shaped bracket is elastically connected to the placement seat through a second spring, one end of the L-shaped bracket abuts against a seesaw, the seesaw is rotatably connected to the placement seat, and a first torsion spring is connected between the seesaw and the placement seat; One end of the seesaw is in contact with a first contact head, the first contact head is elastically connected to the placement seat through a third spring, and a contact head in contact with the first contact head is fixed on the strip-shaped mounting plate; A second contact head is connected to the second hollow rod, one end of the second contact head is in contact with a third contact head, the third contact head is elastically connected to the first hollow rod through a fourth spring, a plurality of circumferentially equidistantly distributed contact columns are provided on the strip mounting plate, a guide block is fixed on the bottom plate, a guide rod is fixed on the strip mounting plate, and the guide rod is slidably connected to the guide block.

2. The polishing device for automobile bushing processing according to claim 1, characterized in that: The servo motor is fixed on the strip-shaped mounting plate, and a first gear is installed on the motor shaft of the servo motor, and a second gear is installed on the first hollow rod, and the second gear is meshed with the first gear.

3. The polishing device for automobile bushing processing according to claim 2, characterized in that: A first rotating joint is arranged on the other end of the first hollow rod, a round rod is arranged in the hollow tube, the round rod is elastically connected to one end of the second hollow rod through a fifth spring, a round sheet is fixed to one end of the round rod, and an adsorption flow groove is opened on the second hollow rod.

4. The polishing device for automobile bushing processing according to claim 3 is characterized in that: A plurality of suction ports are arranged on the circumferential surface of the hollow tube, the hollow tube is connected to the dust collection box, a sliding rod is fixed on the cleaning brush plate, the sliding rod is elastically connected to the hollow tube through a sixth spring, a first abutting wedge is fixed on the round rod, and the first abutting wedge abuts against one end of the sliding rod.

5. The polishing device for automobile bushing processing according to claim 4, characterized in that: A piston cylinder is provided at the other end of the bushing body, and a plurality of bearing frames are fixed on the base plate. A hollow piston rod is rotatably connected to the bearing frame. The piston cylinder is elastically connected to the hollow piston rod through a seventh spring, and a piston plate is fixed at the end of the hollow piston rod. The piston plate is slidably connected in the piston cylinder. A liquid inlet hole is provided on the hollow piston rod, and an infusion channel is provided on the piston cylinder. The other end of the hollow piston rod is connected to a second rotary joint.

6. The polishing device for automobile bushing processing according to claim 5, characterized in that: A cavity is provided at one end of the piston cylinder, and a plurality of nozzles are provided in the cavity. The nozzles are rotatably connected to the piston cylinder, and a second torsion spring is connected between the nozzles and the piston cylinder. The infusion channel is communicated with the plurality of nozzles through a pipeline, and a smear brush is fixed on the circumferential surface of the piston cylinder. A strip groove is provided on the piston cylinder, and a wave resistance bracket is provided in the strip groove, and the wave resistance bracket is elastically connected to the piston cylinder through an eighth spring. A resistance ring is provided in the cavity, and the resistance ring is elastically connected to the piston cylinder through a ninth spring. One end of the wave resistance bracket is in resistance to the resistance ring, and one end of the resistance ring is in resistance to one end of the nozzle.

7. The polishing device for automobile bushing processing according to claim 6, characterized in that: A card slot is provided on the piston cylinder, one end of the hollow tube is slidably connected to a spring telescopic rod, the upper end of the spring telescopic rod is fixed with a wedge-shaped card block, and a tenth spring is connected between the spring telescopic rod and the hollow tube, the lower end of the spring telescopic rod is against the round rod, and the other end of the round rod is provided with a contact inclined surface.

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