Transmission shaft grinding device and method thereof

Abstract

The invention belongs to the technical field of automobile transmission shaft machining, and discloses a transmission shaft grinding device and a method thereof.The transmission shaft grinding device comprises a base and a sliding seat, a stable clamping assembly is arranged on the base and comprises two sliding tables installed on the base in a sliding mode, and rotating cylinders are rotationally installed above the sliding tables correspondingly; a self-adaptive clamping mechanism used for clamping a transmission shaft to be polished is arranged in the middle of the rotary drum, and a driving assembly used for driving the two sliding tables to move in the direction close to each other or away from each other is arranged at the position, between the two sliding tables, of the base. The sliding seat is fixedly mounted on one side of the base, a first sliding groove is formed in the sliding seat, a polishing and cleaning assembly is slidably mounted in the first sliding groove, a mounting table is fixedly mounted on the side, opposite to the sliding seat, of the base, and a placement assembly is arranged on the mounting table; the transmission shaft grinding device can be suitable for clamping and grinding transmission shafts of different length specifications, and the using effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile transmission shaft processing, and in particular relates to a transmission shaft grinding device and a method thereof. Background Art

[0002] The drive shaft is a high-speed, low-support rotating body, so its dynamic balance is crucial; generally, the drive shaft must undergo a dynamic balance test before leaving the factory and be adjusted on a balancing machine; for front-engine, rear-wheel drive vehicles, the function of the drive shaft is to transmit the rotational power of the transmission to the main reducer. The drive shaft can be assembled from several sections, and the sections are connected by couplings such as universal joints.

[0003] In the prior art, in order to ensure the stability of the drive shaft during the grinding process, the drive shaft needs to be stably clamped. However, general drive shaft grinding devices cannot adapt to drive shafts of different lengths and are prone to wear on the outer surface of the drive shaft during clamping, thereby reducing the use effect. Summary of the invention

[0004] The main technical problem to be solved by the present invention is to provide a transmission shaft grinding device and method, which can be used to clamp and grind transmission shafts of different length specifications, and can protect the transmission shaft to avoid wear of the transmission shaft during the clamping process, thereby improving the use effect.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A transmission shaft grinding device comprises a base and a sliding seat, a stable clamping assembly is arranged on the base, the stable clamping assembly comprises two sliding tables slidably mounted on the base, rotating drums are rotatably mounted above the sliding tables, an adaptive clamping mechanism for clamping the transmission shaft to be ground is arranged at the middle position of the rotating drum, a driving assembly for driving the two sliding tables to move towards or away from each other is arranged between the two sliding tables on the base; the sliding seat is fixedly mounted on one side of the base, a first sliding groove is opened on the sliding seat, and a grinding and cleaning assembly is slidably mounted in the first sliding groove, a mounting table is fixedly mounted on the side of the base opposite to the sliding seat, and a placing assembly is arranged on the mounting table.

[0006] The following is a further optimization of the above technical solution by the present invention: The driving assembly includes two second sliding grooves opened on the base, and the two second sliding grooves are opened along the sliding direction of the sliding table. A two-way threaded rod is rotatably installed in one of the second sliding grooves, and a limiting rod is fixedly installed in the other second sliding groove. Two threaded blocks are threadedly connected to the two-way threaded rod, and a sliding block is slidably installed on the limiting rod. The upper ends of a group of threaded blocks and the sliding block are fixedly connected to the corresponding sliding table; a third motor is fixedly installed on the base near the middle of the two-way threaded rod, and the power output end of the third motor is transmission-connected to the two-way threaded rod through a second gear set.

[0007] Further optimization: the top of the sliding table is fixedly connected with two groups of spaced-apart fixing parts, each group of fixing parts includes two spaced-apart fixing parts, a rotating shaft is rotatably installed between the two fixing parts in each group of fixing parts, two spaced-apart transmission wheels are fixedly connected to the rotating shaft, and the rotating drum above the sliding table is placed on the corresponding transmission wheels respectively; the top of the sliding table is fixedly installed with a first motor, and the power output end of the first motor is transmission-connected to any one of the rotating shafts through a first pulley group.

[0008] Further optimization: a second motor is fixedly installed on the outer circumferential surface of the rotating drum, a power output end of the second motor passes through the corresponding rotating drum and is fixedly connected with the first gear, a rotating ring is rotatably installed on one side of the rotating drum, a first gear ring is fixedly connected on the outer circumferential surface of the rotating ring, and the first gear ring is meshed and connected with the corresponding first gear; The rotating ring is provided with a plurality of arc grooves which are in an annular shape and arranged at intervals, and a sliding rod is slidably connected in each of the plurality of arc grooves.

[0009] Further optimization: the adaptive clamping mechanism includes a fixed ring fixedly mounted on the inner wall of the rotating drum, and a plurality of third sliding grooves in the shape of a ring and arranged at intervals are opened on the fixed ring, and sliding rods are slidably connected in the plurality of third sliding grooves, and the sliding rods are fixedly connected to corresponding sliding rod members, and one end of the sliding rod close to the center of the fixed ring is fixedly connected to a mounting frame.

[0010] Further optimization: a clamping pad is arranged at intervals on the side of the mounting frame away from the sliding rod, two mounting rods are hinged on the side of the clamping pad close to the mounting frame, the other end of the mounting rod is connected to the mounting frame, and a plurality of first springs arranged at intervals are fixedly connected to the side of the mounting frame away from the sliding rod, and the end of the first spring away from the mounting frame is fixedly connected to the corresponding clamping pad.

[0011] Further optimization: two fourth sliding grooves are provided on the mounting table, the placement assembly includes a movable frame slidably installed in the fourth sliding groove, and a moving mechanism for driving the movable frame to move in the fourth sliding groove is arranged between the movable frame and the fourth sliding groove; a movable plate is hingedly connected to one side of the movable frame close to the base, a placement pad is fixedly installed on the upper surface of the movable plate, and a top connecting plate is fixedly installed on the lower surface of the movable plate.

[0012] Further optimization: a mounting plate is fixedly installed at a position close to the movable plate below the movable frame, and a plurality of second springs are fixedly installed on the mounting plate, and the other end of the second spring is fixedly connected to the corresponding top connecting plate, and a fifth motor is fixedly installed below the movable frame, and a winding wheel is fixedly connected to the power output end of the fifth motor, and a winding rope is wound around the winding wheel, and the free end of the winding rope passes through the mounting plate and is fixedly connected to the bottom of the corresponding movable plate.

[0013] Further optimization: the grinding and cleaning assembly includes a sliding frame, the sliding frame is slidably installed in the first sliding groove, a walking mechanism for driving the sliding frame to slide is arranged between the sliding frame and the sliding seat, a fixed frame is fixedly connected to the side of the sliding frame close to the base, a grinding roller is rotatably installed on the fixed frame, and a grinding drive mechanism for driving the grinding roller to rotate is installed on the fixed frame; A dust collection bin is installed on the fixed frame, a collection box is fixedly installed on the top of the sliding frame, and a negative pressure suction component is arranged between the collection box and the dust collection bin.

[0014] The present invention also provides a transmission shaft grinding method, based on the above-mentioned transmission shaft grinding device, comprising the following steps: Step 1: Place the transmission shaft to be polished on the placement pad, start the third motor to drive the bidirectional threaded rod to rotate through the second gear set, and the bidirectional threaded rod rotates to drive the sliding tables on both sides to move towards or away from each other, so as to adjust the distance between the two rotating drums, and then the two rotating drums are respectively mounted on the two ends of the transmission shaft to be polished; Step 2: Start the second motor and drive the rotating ring to rotate through the meshing of the first gear and the first gear ring. During the rotation of the rotating ring, the sliding rod is forced to drive the sliding rod to move toward the center of the mounting frame through a plurality of arc grooves. At this time, the clamping pad gradually approaches the end of the transmission shaft, and the clamping pad deforms and compresses the first spring, so that the clamping pad is tightly attached to the outer surface of the transmission shaft to stably clamp it. Step 3: After the clamping is completed, the fifth motor is started to drive the winding wheel to rotate and wind up the winding rope, and the winding rope pulls the movable plate to swing and compresses the second spring. At this time, the placement pad is separated from the outer surface of the transmission shaft, and then the moving mechanism is started to drive the movable frame to move away from the transmission shaft; Step 4: Start the grinding drive mechanism to drive the grinding roller to rotate, start the walking mechanism to drive the sliding frame to move back and forth, start the first motor to drive the rotating shaft to rotate through the first pulley group, and the rotating shaft drives the rotating drum and the clamped transmission shaft to rotate through the transmission wheel during the rotation process, thereby completing the grinding operation on the outer surface of the transmission shaft; Step 5: The negative pressure suction component operates to generate negative pressure inside the collection box and the dust collection bin, and the dust generated during grinding is sucked into the collection box.

[0015] The present invention adopts the above technical solution and has the following beneficial effects: 1. The present invention is provided with a stable clamping assembly, wherein the third motor drives the bidirectional threaded rod to rotate through the transmission action of the second gear set, so that the sliding tables on both sides move in the direction of approaching or moving away from each other, so that the device can adapt to transmission shafts of different lengths and specifications, thereby increasing the applicability of the device; the second motor drives the rotating ring to rotate through the meshing of the first gear and the first gear ring, and during the rotation process, the rotating ring forces the sliding rod to drive the sliding rod to move in the direction close to the center of the mounting frame through a plurality of arc grooves, at which time the clamping pad gradually approaches the end of the transmission shaft, and the clamping pad deforms and compresses the first spring, so that the clamping pad is close to the surface of the transmission shaft for stably clamping it, thereby increasing the stability and convenience of clamping the transmission shaft, reducing the wear on the outer surface of the transmission shaft, and improving the use effect.

[0016] 2. The present invention is provided with a placing assembly, which is used to place the transmission shaft to be polished through a placing pad. After the transmission shaft is clamped, the fifth motor drives the winding wheel to rotate to reel in the winding rope. At this time, the winding rope pulls the movable plate to swing and compresses the second spring. At this time, the placing pad is separated from the outer surface of the transmission shaft, and then the moving mechanism is started to drive the movable frame to move away from the transmission shaft, which makes it easier to stabilize the clamping assembly to adjust the spacing. It is suitable for clamping transmission shafts of different lengths and specifications, thereby improving the use effect.

[0017] 3. The present invention is provided with a grinding and cleaning component, which generates negative pressure inside the collection box and the dust collection bin through the operation of the negative pressure suction component, and sucks the dust generated during grinding into the collection box, which can prevent the dust from adhering to the transmission shaft again and affecting the grinding effect, and at the same time prevent the dust from flying and affecting the working environment and the health of workers.

[0018] 4. The present invention adopts the above technical solution, which is ingenious in conception and reasonable in structure. It can stably clamp transmission shafts of different lengths and specifications, and can reduce the wear on the surface of the transmission shaft during the clamping process, thereby improving the use effect. The overall structure is simple and easy to use, which can reduce the production and use costs.

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of a stable clamping assembly in an embodiment of the present invention; Figure 3 An exploded view of a stable clamping assembly according to an embodiment of the present invention; Figure 4 A structural cross-sectional view of the mounting bracket position in an embodiment of the present invention; Figure 5 is a schematic diagram of the structure of the placement component in an embodiment of the present invention; Figure 6 A cross-sectional view of the base and the sliding seat in an embodiment of the present invention; Figure 7 It is a cross-sectional view of a grinding and cleaning component in an embodiment of the present invention.

[0021] In the figure: 1-base; 2-mounting table; 3-sliding seat; 4-stable clamping assembly; 401-sliding table; 402-fixing member; 403-transmission wheel; 404-transmission belt; 405-first pulley; 406-first motor; 407-rotating drum; 408-first gear ring; 409-first gear; 410-second motor; 411-sliding rod; 412-arc groove; 413-sliding rod; 414-fixing ring; 415-mounting frame; 416-first spring; 417-mounting rod; 418-clamping pad; 419-third motor; 420-second gear; 421-second gear ring; 422-bidirectional threaded rod; 423-limiting rod; 424-rotating ring; 425-rotating shaft; 5-placing assembly; 501-movable frame; 502-third gear; 503-fourth motor; 504-first rack; 505-winding wheel; 506-fifth motor; 507-top plate; 508-winding rope; 509-placing pad; 510-second spring; 511-guide; 512-movable plate; 513-mounting plate; 6-grinding and cleaning assembly; 601-sliding frame; 602-second rack; 603-grinding roller; 604-dust suction bin; 605-connecting pipe; 606-rotating rod; 607-second pulley; 608-fixed frame; 609-sixth motor; 610-negative pressure pump; 611-collection box; 612-seventh motor; 613-fourth gear; 614-belt. DETAILED DESCRIPTION

[0022] Reference Figure 1-7A transmission shaft grinding device comprises a base 1 and a sliding seat 3, wherein the base 1 is provided with a stable clamping component 4, the sliding seat 3 is fixedly mounted on one side of the base 1, the sliding seat 3 is provided with a first sliding groove, and a grinding and cleaning component 6 is slidably mounted in the first sliding groove, and a mounting table 2 is fixedly mounted on the side of the base 1 opposite to the sliding seat 3, and a placing component 5 is arranged on the mounting table 2.

[0023] The stable clamping assembly 4 includes two sliding tables 401 slidably mounted on the base 1, and rotating drums 407 are rotatably mounted above the sliding tables 401. An adaptive clamping mechanism for clamping the transmission shaft to be polished is arranged at the middle position of the rotating drum 407. A driving assembly for driving the two sliding tables 401 to move toward or away from each other is arranged between the two sliding tables 401 on the base 1.

[0024] Reference Figure 1 , Figure 2 and Figure 6 The driving assembly includes two second sliding grooves opened on the base 1, and the two second sliding grooves are opened along the sliding direction of the sliding table 401. A bidirectional threaded rod 422 is rotatably installed in one of the second sliding grooves, and a limiting rod 423 is fixedly installed in the other second sliding groove.

[0025] The bidirectional threaded rod 422 is threadedly connected with two threaded blocks, and the limiting rod 423 is slidably mounted with a sliding block, which are respectively slidably connected with the corresponding second sliding grooves; the upper ends of a group of threaded blocks and sliding blocks are fixedly connected with the corresponding sliding platform 401.

[0026] In this embodiment, the bidirectional threaded rod 422 rotates through the threaded block to drive the two sliding tables 401 to move towards or away from each other. The sliding block cooperates with the limit rod 423 to support the movement of the sliding table 401, thereby improving the stability of the sliding table 401 during movement.

[0027] A third motor 419 is fixedly mounted on the base 1 at a position close to the middle of the bidirectional threaded rod 422 , and a power output end of the third motor 419 is transmission-connected to the bidirectional threaded rod 422 via a second gear set.

[0028] The second gear set includes a second gear 420, which is fixedly mounted on the power output end of the third motor 419. A second gear ring 421 is fixedly connected to the outer surface of the bidirectional threaded rod 422 near its middle position, and the second gear ring 421 and the second gear 420 are meshed with each other.

[0029] With this design, the third motor 419 is started to drive the second gear 420 to rotate, and the second gear 420 engages with the second gear ring 421 to drive the bidirectional threaded rod 422 to rotate. The rotation of the bidirectional threaded rod 422 drives the two sliding tables 401 to move towards or away from each other through the threaded block. The sliding block is slidably connected to the limit rod 423 to support the movement of the sliding table 401, thereby improving the stability of the sliding table 401 during movement.

[0030] The top of the sliding table 401 is fixedly connected with two groups of spaced apart fixing parts, each group of fixing parts includes two spaced apart fixing parts 402, a rotating shaft 425 is rotatably installed between the two fixing parts 402 in each group of fixing parts, two spaced apart transmission wheels 403 are fixedly connected to the rotating shaft 425, and the rotating drums 407 above the sliding table 401 are placed on the corresponding transmission wheels 403 respectively.

[0031] In this embodiment, an annular groove is provided on the transmission wheel 403, and annular vertical plates are fixedly installed on the rotating drum 407 near the two sides thereof. The annular vertical plates on the rotating drum 407 are respectively placed in the annular grooves on the corresponding transmission wheel 403. The cooperation between the annular groove and the annular vertical plates is used to limit the position of the rotating drum 407 on the transmission wheel 403, thereby preventing the transmission wheel 403 from moving left and right during rotation.

[0032] A first motor 406 is fixedly mounted on the top of each of the sliding platforms 401 , and a power output end of the first motor 406 is transmission-connected to any one of the rotating shafts 425 via a first pulley set.

[0033] The first pulley assembly includes a first pulley 405 , which is fixedly mounted on the power output end of the first motor 406 and on a rotating shaft 425 adjacent to the first motor 406 , and a same transmission belt 404 is sleeved on the outer surfaces of two adjacent first pulleys 405 .

[0034] The first motor 406 drives the corresponding rotating shaft 425 to rotate through the cooperation of the first pulley 405 and the transmission belt 404. The rotation of the rotating shaft 425 can drive the rotating drum 407 above it to rotate through the transmission effect of the transmission wheel 403, which is convenient to use.

[0035] The second motor 410 is fixedly mounted on the outer circumferential surface of the rotating drum 407 , and the power output end of the second motor 410 passes through the corresponding rotating drum 407 and is fixedly connected to the first gear 409 .

[0036] In this embodiment, the wiring circuit of the second motor 410 is based on the prior art, and a conductive ring can be used for conduction to realize power supply to the second motor 410 . The conductive ring (not shown in the figure) is installed on the drum 407 .

[0037] A rotating ring 424 is rotatably mounted on one side of the rotating drum 407 , and a first gear ring 408 is fixedly connected to the outer circumferential surface of the rotating ring 424 . The first gear ring 408 is meshedly connected with the corresponding first gear 409 .

[0038] In this design, the second motor 410 drives the first gear 409 to rotate, and the first gear 409 rotates to engage with the first gear ring 408 to drive the rotating ring 424 to rotate.

[0039] In this embodiment, the function of the second motor 410 is to realize automatic driving of the rotating ring 424 to rotate. In addition to this embodiment, the second motor 410 can also be replaced by a handwheel. The rotation of the handwheel drives the rotating ring 424 to rotate through the transmission action of the first gear 409 and the first gear ring 408, and the handwheel has a self-locking function.

[0040] Reference Figure 1 , Figure 3 and Figure 4 The rotating ring 424 is provided with a plurality of annular arc grooves 412 arranged at intervals, and a sliding rod 411 is slidably connected in each of the plurality of arc grooves 412 .

[0041] The adaptive clamping mechanism includes a fixed ring 414 fixedly mounted on the inner wall of the rotating drum 407, and a plurality of third sliding grooves in annular shape and arranged at intervals are opened on the fixed ring 414. Sliding rods 413 are slidably connected in the plurality of third sliding grooves, and the sliding rods 413 are fixedly connected to the corresponding sliding rod members 411. One end of the sliding rod 413 close to the center of the fixed ring 414 is fixedly connected to a mounting frame 415.

[0042] Reference Figure 1 , Figure 3 and Figure 4 A clamping pad 418 is spaced apart on one side of the mounting frame 415 away from the sliding rod 413 , and two mounting rods 417 are hingedly connected to the clamping pad 418 on one side close to the mounting frame 415 , and the other end of the mounting rod 417 is connected to the mounting frame 415 .

[0043] A plurality of first springs 416 arranged at intervals are fixedly connected to one side of the mounting frame 415 away from the sliding rod 413 , and one end of the first spring 416 away from the mounting frame 415 is fixedly connected to a corresponding clamping pad 418 .

[0044] In this embodiment, the clamping pad 418 is made of rubber material, and has a certain elasticity. A side of the clamping pad 418 away from the mounting frame 415 is an arc-shaped surface, and an anti-slip groove is provided on the arc-shaped surface.

[0045] Designed in this way, the working process of the stable clamping assembly 4 is: the third motor 419 is started to drive the second gear 420 to rotate, the second gear 420 engages with the second gear ring 421 to drive the bidirectional threaded rod 422 to rotate, and the bidirectional threaded rod 422 rotates to drive the sliding tables 401 on both sides to move towards each other; the distance between the two rotating cylinders 407 is adjusted, and then the two rotating cylinders 407 are respectively mounted on the two ends of the transmission shaft to be polished.

[0046] The second motor 410 starts to drive the first gear 409 to rotate, and the first gear 409 engages with the first gear ring 408 to drive the rotating ring 424 to rotate. During the rotation process, the rotating ring 424 forces the sliding rod 411 to drive the sliding rod 413 to move toward the center of the mounting bracket 415 through a plurality of arc grooves 412. At this time, the clamping pad 418 gradually approaches the end of the transmission shaft, and the clamping pad 418 deforms and compresses the first spring 416, so that the clamping pad 418 is close to the outer surface of the transmission shaft to stably clamp it.

[0047] The first motor 406 starts to drive the corresponding rotating shaft 425 to rotate through the cooperation of the first pulley 405 and the transmission belt 404. The rotation of the rotating shaft 425 can drive the rotating drum 407 above it to rotate through the transmission effect of the transmission wheel 403, which is convenient to use.

[0048] Reference Figure 1 and Figure 5 The mounting platform 2 is provided with two fourth sliding grooves, the two fourth sliding grooves are arranged at intervals, and the placement component 5 is slidably mounted on the fourth sliding grooves.

[0049] The placement assembly 5 includes a movable frame 501 slidably mounted in the fourth sliding groove, and a moving mechanism for driving the movable frame 501 to move in the fourth sliding groove is arranged between the movable frame 501 and the fourth sliding groove.

[0050] The moving mechanism includes a first rack 504 fixedly mounted on the inner bottom surface of the fourth sliding groove, a fourth motor 503 fixedly mounted on the movable frame 501, a third gear 502 fixedly connected to the power output end of the fourth motor 503, and the third gear 502 is meshedly connected with the corresponding first rack 504.

[0051] A movable plate 512 is hingedly connected to one side of the movable frame 501 close to the base 1 , a placement pad 509 is fixedly mounted on the upper surface of the movable plate 512 , and a top connecting plate 507 is fixedly mounted on the lower surface of the movable plate 512 .

[0052] The movable frame 501 is provided with a hinge groove on one side close to the movable plate 512, a hinge rod is rotatably installed in the hinge groove, the movable plate 512 is fixedly installed on the hinge rod, and the movable plate 512 is hinged to the movable frame 501 by the cooperation of the hinge rod and the hinge groove, which is convenient for assembly and installation.

[0053] A mounting plate 513 is fixedly mounted below the movable frame 501 at a position close to the movable plate 512 , and a plurality of second springs 510 are fixedly mounted on the mounting plate 513 . The other ends of the second springs 510 are fixedly connected to the corresponding top connecting plates 507 .

[0054] A fifth motor 506 is fixedly installed below the movable frame 501, and a winding wheel 505 is fixedly connected to the power output end of the fifth motor 506. A winding rope 508 is wound around the winding wheel 505. The free end of the winding rope 508 passes through the mounting plate 513 and is fixedly connected to the bottom of the corresponding movable plate 512.

[0055] The mounting plate 513 is provided with a mounting through hole, in which a guide member 511 is fixed, and the winding rope 508 is passed through the guide member 511 , so that the movement of the winding rope 508 is guided and directed by the guide member 511 .

[0056] With this design, when in use, the transmission shaft to be polished can be placed on the placement pad 509, and then the moving mechanism is started. The fourth motor 503 of the moving mechanism is used to drive the third gear 502 to rotate, and the third gear 502 is meshed and connected with the first rack 504, thereby driving the movable frame 501 to move in the fourth sliding groove, so that the movable frame 501 drives the transmission shaft to be polished placed on the placement pad 509 to move, and moves the transmission shaft to be polished to the middle position of the two rotating drums 407; then, the stable clamping assembly 4 is used to clamp the two ends of the transmission shaft to be polished.

[0057] When the clamping is completed, the fifth motor 506 is started to drive the winding wheel 505 to rotate and reel in the winding rope 508. The winding rope 508 pulls the movable plate 512 to swing and compresses the second spring 510. At this time, the placement pad 509 is separated from the outer surface of the transmission shaft. Then the fourth motor 503 of the moving mechanism is started to drive the third gear 502 to rotate, and through the cooperation of the first rack 504, the movable frame 501 moves in the direction away from the transmission shaft.

[0058] Reference Figure 1 , Figure 6 and Figure 7 The grinding and cleaning assembly 6 includes a sliding frame 601, which is slidably installed in the first sliding groove. A walking mechanism for driving the sliding frame 601 to slide is arranged between the sliding frame 601 and the sliding seat 3.

[0059] The walking mechanism includes a seventh motor 612 . The seventh motor 612 is fixedly mounted on the sliding frame 601 . A fourth gear 613 is fixedly connected to the power output end of the seventh motor 612 .

[0060] A second rack 602 is fixedly mounted on the top of the sliding seat 3 at a position corresponding to the fourth gear 613 , and the fourth gear 613 and the second rack 602 are meshed with each other.

[0061] The sliding frame 601 is fixedly connected to a fixed frame 608 on one side close to the base 1. The fixed frame 608 is provided with a mounting groove. A rotating rod 606 is rotatably mounted in the mounting groove. A grinding roller 603 is fixedly mounted on the outer surface of the rotating rod 606. A grinding drive mechanism for driving the grinding roller 603 to rotate is installed on the fixed frame 608.

[0062] Reference Figure 1 , Figure 6 and Figure 7 The grinding drive mechanism includes a sixth motor 609, which is fixedly mounted on one side of a fixed frame 608. A second pulley 607 is fixedly mounted on the power output end of the sixth motor 609 and one end of a rotating rod 606. The two second pulleys 607 are sleeved with the same belt 614.

[0063] A dust collection bin 604 is installed on the fixed frame 608 , a collection box 611 is fixedly installed on the top of the sliding frame 601 , and a negative pressure suction component is provided between the collection box 611 and the dust collection bin 604 .

[0064] The negative pressure suction assembly includes a negative pressure pump 610, which is fixedly installed on the top of a collection box 611. The suction end of the negative pressure pump 610 is connected to the collection box 611. A connecting pipe 605 is fixedly connected to the dust collection bin 604. One end of the connecting pipe 605 away from the dust collection bin 604 passes through a fixed frame 608 and is fixedly connected to the collection box 611.

[0065] In this design, the sixth motor 609 is started to drive the rotating rod 606 and the grinding roller 603 to rotate through the belt 614, and the seventh motor 612 is started to drive the fourth gear 613 to rotate. The fourth gear 613 is meshed with the second rack 602, so that the sliding frame 601 moves back and forth to grind the outer surface of the transmission shaft.

[0066] The negative pressure pump 610 is started to generate negative pressure inside the collecting box 611 and the dust collecting bin 604, and the dust generated by grinding is sucked into the collecting box 611 through the connecting pipe 605 to prevent the dust from flying.

[0067] In addition to the present embodiment, the fixed frame 608 can also be slidably installed on the side of the sliding frame 601 close to the base 1 by using a slide rail. A vertically arranged electric telescopic rod is fixedly installed on the sliding frame 601. The telescopic end of the electric telescopic rod is fixedly connected to the fixed frame 608. The electric telescopic rod is used to drive the fixed frame 608 to move up and down, so as to adjust the height position of the grinding roller 603.

[0068] The present invention also provides a transmission shaft grinding method. Based on the above-mentioned transmission shaft grinding device, the grinding method comprises the following steps: Step 1, place the transmission shaft to be polished on the placement pad 509, start the third motor 419 to drive the bidirectional threaded rod 422 to rotate through the transmission action of the second gear 420 and the second gear ring 421 in the second gear group, and the bidirectional threaded rod 422 rotates to drive the sliding tables 401 on both sides to move towards or away from each other, so as to adjust the distance between the two rotating cylinders 407, so that the distance between the two rotating cylinders 407 matches the overall length of the transmission shaft to be polished, and then the two rotating cylinders 407 are respectively mounted on the two ends of the transmission shaft to be polished.

[0069] Step 2, start the second motor 410 and drive the rotating ring 424 to rotate through the engagement of the first gear 409 and the first gear ring 408. During the rotation process, the rotating ring 424 forces the sliding rod 411 to drive the sliding rod 413 to move toward the center of the mounting bracket 415 through a plurality of arc grooves 412. At this time, the clamping pad 418 gradually approaches the end of the transmission shaft, and the clamping pad 418 deforms and compresses the first spring 416, so that the clamping pad 418 is tightly attached to the outer surface of the transmission shaft to clamp it stably.

[0070] Step three, after the clamping is completed, start the fifth motor 506 to drive the winding wheel 505 to rotate and reel in the winding rope 508, and the winding rope 508 pulls the movable plate 512 to swing and compress the second spring 510. At this time, the placement pad 509 is separated from the outer surface of the transmission shaft, and then start the fourth motor 503 in the moving mechanism and drive the movable frame 501 to move away from the transmission shaft through the engagement of the third gear 502 and the first rack 504.

[0071] Step 4, start the sixth motor 609 in the grinding drive mechanism and drive the grinding roller 603 to rotate through the transmission action of the belt 614 and the rotating rod 606, start the seventh motor 612 in the walking mechanism and drive the sliding frame 601 to move back and forth through the engagement of the fourth gear 613 and the second rack 602, start the first motor 406 and drive the rotating shaft 425 to rotate through the transmission action of the transmission belt 404 in the first pulley group, and during the rotation of the rotating shaft 425, the rotating drum 407 and the clamped transmission shaft are driven to rotate through the transmission wheel 403, thereby completing the grinding operation on the outer surface of the transmission shaft.

[0072] Step 5: The negative pressure pump 610 in the negative pressure suction assembly works to generate negative pressure inside the collection box 611 and the dust suction bin 604 , and the dust generated during grinding is sucked into the collection box 611 through the connecting pipe 605 .

[0073] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transmission shaft grinding device, comprising a base (1) and a sliding seat (3), characterized in that: A stable clamping assembly (4) is arranged on the base (1), and the stable clamping assembly (4) comprises two sliding tables (401) slidably mounted on the base (1), and rotating drums (407) are rotatably mounted above the sliding tables (401), and an adaptive clamping mechanism for clamping a transmission shaft to be polished is arranged at the middle position of the rotating drum (407), and a driving assembly for driving the two sliding tables (401) to move towards or away from each other is arranged between the two sliding tables (401) on the base (1); a sliding seat (3) is fixedly mounted on one side of the base (1), and a first sliding groove is provided on the sliding seat (3), and a polishing and cleaning assembly (6) is slidably mounted in the first sliding groove; a mounting table (2) is fixedly mounted on the side of the base (1) opposite to the sliding seat (3), and a placement assembly (5) is arranged on the mounting table (2).

2. A transmission shaft grinding device according to claim 1, characterized in that: The driving assembly comprises two second sliding grooves formed on the base (1), the two second sliding grooves being formed along the sliding direction of the sliding platform (401), a bidirectional threaded rod (422) being rotatably mounted in one of the second sliding grooves, a limiting rod (423) being fixedly mounted in the other second sliding groove, two threaded blocks being threadedly connected to the bidirectional threaded rod (422), a sliding block being slidably mounted on the limiting rod (423), and a group of threaded blocks and upper ends of the sliding block being fixedly connected to the corresponding sliding platform (401); a third motor (419) being fixedly mounted at a position close to the middle of the bidirectional threaded rod (422) on the base (1), and a power output end of the third motor (419) being transmission-connected to the bidirectional threaded rod (422) via a second gear set.

3. A transmission shaft grinding device according to claim 2, characterized in that: The top of the sliding platform (401) is fixedly connected to two groups of spaced fixing parts, each group of fixing parts includes two spaced fixing parts (402), a rotating shaft (425) is rotatably mounted between the two fixing parts (402) in each group of fixing parts, two spaced transmission wheels (403) are fixedly connected to the rotating shaft (425), and the rotating drum (407) above the sliding platform (401) is respectively placed on the corresponding transmission wheels (403); the top of the sliding platform (401) is fixedly installed with a first motor (406), and the power output end of the first motor (406) is transmission-connected to any one of the rotating shafts (425) via a first pulley group.

4. A transmission shaft grinding device according to claim 3, characterized in that: A second motor (410) is fixedly mounted on the outer circumferential surface of each rotating drum (407); a power output end of each second motor (410) passes through the corresponding rotating drum (407) and is fixedly connected to a first gear (409); a rotating ring (424) is rotatably mounted on one side of each rotating drum (407); a first gear ring (408) is fixedly connected to the outer circumferential surface of the rotating ring (424); and the first gear ring (408) is meshingly connected to the corresponding first gear (409); The rotating ring (424) is provided with a plurality of annular arc grooves (412) arranged at intervals, and a sliding rod (411) is slidably connected in each of the plurality of arc grooves (412).

5. A transmission shaft grinding device according to claim 4, characterized in that: The adaptive clamping mechanism comprises a fixing ring (414) fixedly mounted on the inner wall of the rotating drum (407), the fixing ring (414) being provided with a plurality of third sliding grooves in annular shape and arranged at intervals, sliding rods (413) being slidably connected in the plurality of third sliding grooves, the sliding rods (413) being fixedly connected to corresponding sliding rod members (411), and a mounting frame (415) being fixedly connected to one end of the sliding rod (413) close to the center of the fixing ring (414).

6. A transmission shaft grinding device according to claim 5, characterized in that: A clamping pad (418) is arranged at intervals on one side of the mounting frame (415) away from the sliding rod (413); two mounting rods (417) are hingedly connected to the clamping pad (418) on one side close to the mounting frame (415); the other end of the mounting rod (417) is connected to the mounting frame (415); a plurality of first springs (416) arranged at intervals are fixedly connected to one side of the mounting frame (415) away from the sliding rod (413); and one end of the first spring (416) away from the mounting frame (415) is fixedly connected to a corresponding clamping pad (418).

7. A transmission shaft grinding device according to claim 6, characterized in that: The mounting platform (2) is provided with two fourth sliding grooves, and the placement assembly (5) comprises a movable frame (501) slidably mounted in the fourth sliding grooves, and a moving mechanism for driving the movable frame (501) to move in the fourth sliding grooves is provided between the movable frame (501) and the fourth sliding grooves; a movable plate (512) is hingedly connected to a side of the movable frame (501) close to the base (1), a placement pad (509) is fixedly mounted on the upper surface of the movable plate (512), and a top connecting plate (507) is fixedly mounted on the lower surface of the movable plate (512).

8. A transmission shaft grinding device according to claim 7, characterized in that: A mounting plate (513) is fixedly mounted below the movable frame (501) at a position close to the movable plate (512); a plurality of second springs (510) are fixedly mounted on the mounting plate (513); the other ends of the second springs (510) are fixedly connected to corresponding top connecting plates (507); a fifth motor (506) is fixedly mounted below the movable frame (501); a winding wheel (505) is fixedly connected to the power output end of the fifth motor (506); a winding rope (508) is wound around the winding wheel (505); a free end of the winding rope (508) passes through the mounting plate (513) and is fixedly connected to the bottom of the corresponding movable plate (512).

9. A transmission shaft grinding device according to claim 8, characterized in that: The grinding and cleaning assembly (6) comprises a sliding frame (601), the sliding frame (601) is slidably mounted in a first sliding groove, a walking mechanism for driving the sliding frame (601) to slide is arranged between the sliding frame (601) and the sliding seat (3), a fixed frame (608) is fixedly connected to a side of the sliding frame (601) close to the base (1), a grinding roller (603) is rotatably mounted on the fixed frame (608), and a grinding drive mechanism for driving the grinding roller (603) to rotate is installed on the fixed frame (608); A dust collection bin (604) is mounted on the fixed frame (608), a collection box (611) is fixedly mounted on the top of the sliding frame (601), and a negative pressure suction component is provided between the collection box (611) and the dust collection bin (604).

10. A transmission shaft grinding method, based on the transmission shaft grinding device according to claim 9, characterized in that: The steps include: Step 1: Place the transmission shaft to be polished on the placement pad (509), start the third motor (419) to drive the bidirectional threaded rod (422) to rotate through the second gear set, and the bidirectional threaded rod (422) drives the sliding tables (401) on both sides to move in a direction of approaching or moving away from each other, so as to adjust the distance between the two rotating drums (407), and then the two rotating drums (407) are respectively mounted on the two ends of the transmission shaft to be polished; Step 2, start the second motor (410) and drive the rotating ring (424) to rotate through the meshing of the first gear (409) and the first gear ring (408). During the rotation process, the rotating ring (424) forces the sliding rod (411) to drive the sliding rod (413) to move toward the center of the mounting frame (415) through the multiple arc grooves (412). At this time, the clamping pad (418) gradually approaches the end of the transmission shaft, and the clamping pad (418) deforms and compresses the first spring (416), so that the clamping pad (418) is tightly attached to the outer surface of the transmission shaft to stably clamp it; Step 3: After the clamping is completed, the fifth motor (506) is started to drive the reel (505) to rotate and reel in the reeling rope (508), and the reeling rope (508) pulls the movable plate (512) to swing and compress the second spring (510), at which time the placement pad (509) is separated from the outer surface of the transmission shaft, and then the moving mechanism is started to drive the movable frame (501) to move in a direction away from the transmission shaft; Step 4: Start the grinding drive mechanism to drive the grinding roller (603) to rotate, start the walking mechanism to drive the sliding frame (601) to move back and forth, start the first motor (406) to drive the rotating shaft (425) to rotate through the first pulley group, and during the rotation of the rotating shaft (425), the rotating drum (407) and the clamped transmission shaft are driven to rotate through the transmission wheel (403), thereby completing the grinding operation on the outer surface of the transmission shaft; Step 5: The negative pressure suction component operates to generate negative pressure inside the collection box (611) and the dust suction bin (604), so that the dust generated during grinding is sucked into the collection box (611).

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