A planing device for splines inside shafts of automobile parts

Abstract

The present invention belongs to the technical field of planing processing of automobile parts, and in particular, it relates to a planing device for splines in the shaft of automobile parts, comprising: a planing table, a side plate fixedly connected to the planing table, a clamping mechanism for fixing the workpiece is provided on the side plate, the upper end of the planing table is slidably connected to a mounting ring in the horizontal direction, a planing member is provided on the side of the mounting ring close to the workpiece; an intermittent planing mechanism, which is used to drive the planing member to advance intermittently to avoid excessive wear of the planing member. The present invention realizes planing processing of automobile parts by setting an intermittent planing mechanism, and during the planing process, the annular plate is advanced through the strip-shaped tooth grooves, and because the advancement distance of the reference plate is less than the advancement distance of the annular plate, the annular plate automatically moves a distance of a station after resetting, so that the annular plate and the planing member are further advanced into the workpiece when they are advanced next time, so that the planing member intermittently performs planing processing on automobile parts.

Description

Technical Field

[0001] The invention belongs to the technical field of planing processing of automobile parts, and in particular relates to a planing device for splines inside a shaft of an automobile part. Background Art

[0002] Auto parts refer to the various independent components and assemblies that make up a car. They work together to enable the car to operate normally and perform various functions. Among them, the power system, transmission system and brake system usually include some shaft parts. When processing these shaft parts, spline processing is usually required inside the shaft. The spline inside the shaft is generally used to transmit torque or realize the connection between components. Therefore, the processing accuracy requirements are high. It needs to be accurately processed by a planing device to achieve the shape and size requirements of the spline.

[0003] Existing planing devices, such as a planing device for the internal splines of an automobile component shaft disclosed in China Publication No. CN113579330A, still have the following technical problems when planing the internal splines of the components:

[0004] During the planing process, the tool and the workpiece are usually planed continuously, resulting in dense contact and heavy load between the tool and the workpiece, which causes excessive wear of the tool, greatly shortening the tool life and requiring frequent replacement, increasing the workload while reducing planing efficiency.

[0005] During the planing process, since the inner cavity of the spline in the shaft is usually narrow, the debris generated by cutting is difficult to discharge and usually accumulates between the spline groove and the tool, changing the contact between the tool and the workpiece, increasing local cutting resistance, resulting in unstable cutting force, causing deviations in the spline processing size and shape, and affecting the geometric accuracy of the spline. Summary of the invention

[0006] The purpose of the present invention is to provide a planing device for the splines inside the shaft of an automobile part, which can enable a planing member to intermittently plane automobile parts, avoid the planing member from continuously planing automobile parts, and prevent excessive wear of the planing member.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A planing device for the inner spline of an automobile component shaft, comprising:

[0009] A planing table, wherein a side plate is fixedly connected to the planing table, and a clamping mechanism for fixing a workpiece is provided on the side plate. The upper end of the planing table is slidably connected to a mounting ring in a horizontal direction, and a planing piece is provided on a side of the mounting ring close to the workpiece;

[0010] An intermittent planing mechanism is used to drive the planing member to advance intermittently to avoid excessive wear of the planing member. The intermittent planing mechanism includes an annular plate fixedly connected to the side wall of the planing member, a support plate fixedly connected to the inner wall of the mounting ring, two transmission rods with opposite rotation directions are rotatably connected to the support plate, a large gear and a small gear are fixedly connected to the two transmission rods, and the large gear and the small gear are both incomplete gears, a bar-shaped tooth groove meshing with the large gear is provided on the inner wall of the annular plate, a reference plate is unidirectionally slidably connected to one side of the mounting ring in the horizontal direction, two racks meshing with the small gear are fixedly connected to the reference plate, and a plurality of first springs distributed in a circular array are provided between the reference plate and the annular plate.

[0011] Preferably, the mounting ring is provided with two symmetrically arranged locking grooves, a ratchet block is slidably connected in the locking groove along the vertical direction, a second spring is provided between the ratchet block and the locking groove, two ratchet plates are fixedly connected to one side of the reference plate close to the mounting ring, the ratchet plates are slidably connected to the inner wall of the locking groove along the horizontal direction, and the ratchet plates cooperate with the ratchet blocks at corresponding positions.

[0012] Preferably, the support plate is rotatably connected to two mutually meshing drive gears, the transmission rod is fixedly connected to a transmission gear meshing with the drive gears at corresponding positions, and the support plate is fixedly connected to a motor for driving one of the drive gears on the side away from the drive gears.

[0013] Preferably, a plurality of planing blocks distributed in a circular array are provided on the circumferential side wall of the planing member, and a plurality of cleaning mechanisms used in conjunction with the planing blocks at corresponding positions are provided in the planing member for cleaning the debris in the spline grooves machined by the planing blocks, the cleaning mechanism comprises a storage chamber provided in the planing member, the planing block is airtightly slidably connected to the inner wall of the storage chamber, an air suction chamber is provided in the planing member, a piston plate is slidably connected in the air suction chamber along the vertical direction, a connecting rod is fixedly connected between the piston plate and the planing block, an air pumping channel connected to the outside is provided on the inner wall of the air suction chamber, an exhaust channel connected to the storage chamber is also provided on the inner wall of the air suction chamber, and a first one-way valve is provided in both the air pumping channel and the exhaust channel.

[0014] Preferably, the bottom wall of the air extraction chamber is fixedly connected to a hydraulic rod, the telescopic end of the hydraulic rod is fixedly connected to the piston plate, a hydraulic chamber connected to the interior of the hydraulic rod is provided in the planing member below the air extraction chamber, a counterweight block is airtightly slidably connected in the hydraulic chamber, and a third spring is provided between the counterweight block and the inner wall of the hydraulic chamber.

[0015] Preferably, an air supply pipe is airtightly connected in the exhaust channel, and a telescopic airbag is fixedly connected to the air supply pipe.

[0016] Preferably, a plurality of cooling and lubrication mechanisms for use with the planing block are provided between the annular plate and the reference plate, for cooling and lubricating the planing position during the planing process, the cooling and lubrication mechanism comprises a pump fluid cavity opened inside the annular plate, a piston block is air-tightly and slidably connected inside the pump fluid cavity, a push rod is fixedly connected to the piston block, the push rod extends to the outside of the pump fluid cavity and is fixedly connected to the reference plate, a through hole is opened on the planing block, a discharge pipe is fixedly connected between the pump fluid cavity and the through hole, an annular liquid storage tank is fixedly connected inside the annular plate, a liquid extraction pipe is fixedly connected between the annular liquid storage tank and the pump fluid cavity, and a second one-way valve is provided in both the liquid extraction pipe and the discharge pipe.

[0017] Preferably, the clamping mechanism comprises an upper fixed block fixedly connected to the side plate and a lower movable block slidably connected to the side plate, and an electric telescopic rod for driving the lower movable block is fixedly connected to the planing table.

[0018] Compared with the existing technology, the advantages of the planing device for the internal spline of the automobile parts shaft are:

[0019] 1. The present invention sets an intermittent planing mechanism. During the planing process, the two transmission rods rotate in opposite directions, so that the two large gears and the two small gears rotate synchronously in opposite directions. When the large gear is engaged with the bar-shaped tooth groove and the small gear is engaged with the rack, the annular plate can be pushed forward through the bar-shaped tooth groove, driving the planing member to be pushed forward, thereby realizing the planing process of the automobile parts. When the large gear is no longer engaged with the bar-shaped tooth groove and the small gear is no longer engaged with the rack, since the advancement distance of the reference plate is less than the advancement distance of the annular plate, the annular plate is reset and moves a distance of one station in the direction of the automobile parts, so that the annular plate and the planing member are pushed deeper into the workpiece when they are pushed next time, so that the planing member intermittently planing the automobile parts, avoiding the planing member from continuously planing the automobile parts, preventing excessive wear of the planing member, and extending the service life of the planing member.

[0020] 2. The present invention provides a cleaning mechanism. During the planing process, the annular plate is slowly advanced under the action of the large gear and the bar-shaped tooth groove, and is quickly reset under the elastic force of the first spring. Therefore, the piston block can discharge the air in the air extraction chamber into the air pipe through the action of the inertial force, so that the telescopic airbag expands and the gas in the air pipe is further quickly discharged, so that the gas can impact between the planing block and the spline groove, thereby cleaning the planed debris, avoiding the debris from accumulating between the spline groove and the planing block, ensuring the contact between the planed piece and the automobile parts, and improving the geometric accuracy of the processed splines.

[0021] 3. The present invention provides a cooling and lubricating mechanism, which drives the piston block to perform reciprocating horizontal displacement in the pump liquid chamber during the planing process, and continuously pumps the coolant in the annular liquid storage tank into the through hole of the planing block, so that the coolant can flow to the planing position through the through hole. During the intermittent planing process, the planing position is cooled and lubricated in real time to prevent the contact between the planing block and the automobile parts from generating a large cutting force, avoid the generation of micro cracks or excessive roughness in the spline groove, and improve the planing effect of the automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 It is a schematic diagram of the local structure of the mounting ring in the present invention;

[0024] Figure 3 is a schematic cross-sectional view of the annular plate in the present invention;

[0025] Figure 4 yes Figure 2 The enlarged view of point A in the middle;

[0026] Figure 5 yes Figure 2 The enlarged view of point B in the middle;

[0027] Figure 6 It is a schematic cross-sectional view of the planing element in the present invention;

[0028] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0029] In the figure: 1, planing table; 11, side plate; 12, clamping mechanism; 121, upper fixed block; 122, lower moving block; 123, electric telescopic rod; 13, mounting ring; 131, locking groove; 132, ratchet block; 133, second spring; 134, ratchet plate; 14, planing member; 2, intermittent planing mechanism; 21, annular plate; 22, supporting plate; 221, driving gear; 222, transmission gear; 23, transmission rod; 24, large gear; 25, small gear; 26, strip tooth groove; 27, reference plate; 28. Rack; 29. ​​First spring; 3. Planing block; 4. Cleaning mechanism; 41. Storage chamber; 42. Air extraction chamber; 43. Piston plate; 44. Connecting rod; 45. Pumping air channel; 46. Exhaust channel; 47. Hydraulic rod; 48. Hydraulic chamber; 49. Counterweight; 410. Third spring; 411. Air pipe; 412. Telescopic airbag; 5. Cooling and lubricating mechanism; 51. Pumping fluid chamber; 52. Piston block; 53. Push rod; 54. Through hole; 55. Drain pipe; 56. Annular liquid storage tank; 57. Extraction pipe. DETAILED DESCRIPTION

[0030] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0031] Example: Refer to Figures 1 to 7 , a planing device for the inner spline of an automobile component shaft, comprising:

[0032] A planing table 1, a side plate 11 is fixedly connected to the planing table 1, a clamping mechanism 12 for fixing a workpiece is provided on the side plate 11, a mounting ring 13 is slidably connected to the upper end of the planing table 1 in a horizontal direction, and a planing member 14 is provided on a side of the mounting ring 13 close to the workpiece;

[0033] Specifically, the clamping mechanism 12 includes an upper fixed block 121 fixedly connected to the side plate 11 and a lower movable block 122 slidably connected to the side plate 11. An electric telescopic rod 123 for driving the lower movable block 122 is fixedly connected to the planing table 1. Before planing, the automobile parts are placed between the upper fixed block 121 and the lower movable block 122, and the lower movable block 122 is pushed up and close to the upper fixed block 121 by the electric telescopic rod 123, so that the automobile parts are clamped between the upper fixed block 121 and the lower movable block 122. The shape of one side wall of the upper fixed block 121 and the lower movable block 122 that are close to each other fits the surrounding side wall of the automobile parts, which is not limited here.

[0034] Specifically, the mounting ring 13 can be driven by a reciprocating screw or a hydraulic telescopic rod. It is only necessary to ensure the stability of the mounting ring 13 during horizontal movement. This is an existing mature technology, so it will not be described in detail in this application.

[0035] The intermittent planing mechanism 2 is used to drive the planing member 14 to advance intermittently to avoid excessive wear of the planing member 14. The intermittent planing mechanism 2 includes an annular plate 21 fixedly connected to the side wall of the planing member 14, and a support plate 22 is fixedly connected to the inner wall of the mounting ring 13. Two transmission rods 23 with opposite rotation directions are rotatably connected to the support plate 22. A large gear 24 and a small gear 25 are fixedly connected to the two transmission rods 23, and both the large gear 24 and the small gear 25 are incomplete gears. A bar-shaped tooth groove 26 meshing with the large gear 24 is provided on the inner wall of the annular plate 21. A reference plate 27 is unidirectionally slidably connected to one side of the mounting ring 13 in the horizontal direction. Two racks 28 meshing with the small gear 25 are fixedly connected to the reference plate 27. A plurality of first springs 29 distributed in a circular array are provided between the reference plate 27 and the annular plate 21.

[0036] Specifically, the mounting ring 13 is provided with two symmetrically arranged locking grooves 131, in which a ratchet block 132 is slidably connected in the vertical direction, a second spring 133 is provided between the ratchet block 132 and the locking groove 131, and two ratchet plates 134 are fixedly connected to one side of the reference plate 27 close to the mounting ring 13, the ratchet plates 134 are slidably connected to the inner wall of the locking groove 131 in the horizontal direction, and the ratchet plates 134 cooperate with the ratchet blocks 132 at the corresponding positions, and through the ratchet plates 134 and the ratchet blocks 132, when the ratchet plates 134 are away from the mounting ring 13, the ratchet on the ratchet plates 134 will The two ratchet blocks 132 are pushed away from each other, and the ratchet block 132 is always locked with the ratchet plate 134 under the elastic force of the second spring 133, so that the ratchet plate 134 cannot move close to the mounting ring 13, so that the reference plate 27 can only move unidirectionally away from the mounting ring 13 during the planing process, thereby ensuring the advancement of the reference plate 27, the annular plate 21 and the planing member 14, and ensuring the comprehensive planing processing of the automobile parts. After the planing is completed, it is only necessary to pull the two ratchet blocks 132 away from each other, and the ratchet plate 134 can no longer be locked unidirectionally, and the planing member 14 can be pulled back to the initial position.

[0037] Specifically, two mutually meshing driving gears 221 are rotatably connected to the support plate 22, and a driving gear 222 meshing with the driving gear 221 at the corresponding position is fixedly connected to the transmission rod 23. An end of the support plate 22 away from the driving gear 221 is fixedly connected to a motor for driving the driving gear 221. When the motor drives one of the driving gears 221 to rotate counterclockwise, the driving gear 221 will drive the driving gear 222 at the corresponding position to rotate clockwise, and drive the other driving gear 221 to rotate clockwise, so that the other driving gear 222 rotates counterclockwise, so that the rotation directions of the two driving gears 222 are always opposite.

[0038] In view of the problem that the planing between the tool and the workpiece in the prior art is usually continuous, resulting in intensive contact and heavy load between the tool and the workpiece, which causes excessive wear of the tool, greatly shortens the service life of the tool, and requires frequent replacement, which increases the workload while reducing the planing efficiency, the present invention provides an intermittent planing mechanism 2. During the planing process, the two transmission rods 23 rotate in opposite directions, so that the two large gears 24 and the two small gears 25 rotate synchronously in opposite directions. When the large gear 24 is engaged with the bar-shaped tooth groove 26 and the small gear 25 is engaged with the rack 28, the annular plate 21 can be pushed forward through the bar-shaped tooth groove 26, driving the planing member 14 to move forward, thereby realizing the planing process of the automobile parts. At this time, the rack 28 synchronously drives the reference plate 27 to move forward, and the advancement distance of the reference plate 27 is less than the advancement distance of the annular plate 21. When the large gear 24 and the bar-shaped tooth groove 26, and the small gear 25 and the rack 28 are no longer in mesh, due to the advancement of the reference plate 27 and its advancement distance being less than the advancement distance of the annular plate 21, the annular plate 21 is reset under the elastic force of the first spring 29, and its position moves a processing length in the direction of the automotive parts compared to the original position, so that when the annular plate 21 and the planing member 14 are advanced next time, they go deeper into the workpiece, so that the planing member 14 intermittently planing the automotive parts, avoiding the planing member 14 continuously planing the automotive parts, causing the planing member 14 to be in a high-load state for a long time, preventing excessive wear of the planing member 14, extending the service life of the planing member 14, and improving the planing efficiency. At the same time, it is helpful to dissipate heat between the planing member 14 and the automotive parts to maintain stable planing conditions.

[0039] A plurality of planing blocks 3 distributed in a circular array are arranged on the peripheral side wall of the planing member 14, and a plurality of cleaning mechanisms 4 used in conjunction with the planing blocks 3 at corresponding positions are arranged in the planing member 14, for cleaning the debris in the spline groove processed by the planing blocks 3, the cleaning mechanism 4 comprises a storage chamber 41 opened in the planing member 14, the planing blocks 3 are airtightly slidably connected to the inner wall of the storage chamber 41, an air suction chamber 42 is opened in the planing member 14, a piston plate 43 is slidably connected in the vertical direction in the air suction chamber 42, a connecting rod 44 is fixedly connected between the piston plate 43 and the planing block 3, an air pumping channel 45 communicating with the outside is opened on the inner wall of the air suction chamber 42, an exhaust channel 46 communicating with the storage chamber 41 is also opened on the inner wall of the air suction chamber 42, and a first one-way valve is provided in both the air pumping channel 45 and the exhaust channel 46.

[0040] Specifically, a hydraulic rod 47 is fixedly connected to the bottom wall of the vacuum chamber 42, and the telescopic end of the hydraulic rod 47 is fixedly connected to the piston plate 43. A hydraulic chamber 48 connected to the interior of the hydraulic rod 47 is opened at a position below the vacuum chamber 42 in the planing member 14. A counterweight block 49 is airtightly slidably connected to the hydraulic chamber 48, and a third spring 410 is provided between the counterweight block 49 and the inner wall of the hydraulic chamber 48.

[0041] Specifically, the exhaust channel 46 is airtightly connected with an air pipe 411 so that air can only enter the air pipe 411, and the air pipe 411 is fixedly connected with a telescopic airbag 412, wherein an elastic element is provided inside the telescopic airbag 412 so that the telescopic airbag 412 has a tendency to shrink back to its initial size after expansion.

[0042] Specifically, the setting of the first one-way valve ensures that when the piston plate 43 moves back and forth once in the air pumping chamber 42, the outside air can only be pumped into the air pumping chamber 42 through the air pumping channel 45, and the air in the air pumping chamber 42 can only be pumped out to the storage chamber 41 through the exhaust channel 46. The exhaust channel 46 is arranged inside the air supply pipe 411.

[0043] In view of the fact that the inner cavity of the spline in the shaft in the prior art is usually narrow, the debris generated by cutting is difficult to discharge, and usually accumulates between the spline groove and the tool, changing the contact between the tool and the workpiece, increasing the local cutting resistance, thereby causing the instability of the cutting force, resulting in the deviation of the spline processing size and shape, and affecting the spline geometric accuracy, the present invention sets a cleaning mechanism 4. During the planing process, the annular plate 21 is advanced slowly under the action of the large gear 24 and the strip tooth groove 26, and the annular plate 21 is reset quickly under the elastic force of the first spring 29. Therefore, during the reset of the annular plate 21, the following situations will occur:

[0044] The counterweight block 49 overcomes the elastic force of the third spring 410 under the action of inertia force, and moves to the side of the hydraulic chamber 48 away from the mounting ring 13, so that the hydraulic oil in the hydraulic rod 47 can enter the hydraulic chamber 48. The hydraulic rod 47 contracts and pulls the piston plate 43, further driving the connecting rod 44 and the planing block 3 to retract into the storage chamber 41. The movement of the piston plate 43 can discharge the air in the suction chamber 42 into the air pipe 411. Since the planing block 3 is not completely retracted into the storage chamber 41 at this time, the air pipe 411 is blocked and closed, so the increase of gas in the air pipe 411 will cause the telescopic airbag 412 to expand.

[0045] When the planing block 3 is completely retracted into the storage chamber 41, the air pipe 411 is no longer closed, and the elastic element in the telescopic airbag 412 will quickly shrink it back to its initial state, thereby quickly discharging the gas in the air pipe 411, so that the gas can quickly impact between the planing block 3 and the spline groove, thereby cleaning the planed debris and preventing the debris from accumulating between the spline groove and the planing block 3, ensuring the contact between the planing piece 14 and the automobile parts, and improving the geometric accuracy of the processed splines.

[0046] In addition, after the annular plate 21 is completely reset, the disappearance of the inertial force will cause the counterweight block 49 to reset under the elastic force of the third spring 410, so that the hydraulic rod 47, the piston plate 43 and the planing piece 14 are reset, and the outside air is pumped into the exhaust chamber 42 to facilitate the next cleaning of the planing position. During the planing process, the force applied by the automobile parts to the planing block 3 is an axial force, so the planing piece 14 will not be pressed into the storage chamber 41, thereby ensuring the planing work of the automobile parts.

[0047] A plurality of cooling and lubricating mechanisms 5 for use with the planing block 3 are provided between the annular plate 21 and the reference plate 27, and are used to cool and lubricate the planing position during the planing process. The cooling and lubricating mechanisms 5 include a pump liquid chamber 51 opened inside the annular plate 21, and a piston block 52 is airtightly and slidably connected inside the pump liquid chamber 51. A push rod 53 is fixedly connected to the piston block 52, and the push rod 53 extends to the outside of the pump liquid chamber 51 and is fixedly connected to the reference plate 27. A through hole 54 is opened on the planing block 3, and a discharge pipe 55 is fixedly connected between the pump liquid chamber 51 and the through hole 54. An annular liquid storage tank 56 is fixedly connected inside the annular plate 21, and a liquid extraction pipe 57 is fixedly connected between the annular liquid storage tank 56 and the pump liquid chamber 51. A second one-way valve is provided in both the liquid extraction pipe 57 and the discharge pipe 55.

[0048] Specifically, the function of the second one-way valve is similar to that of the first one-way valve, both of which are to avoid backflow, so they are not described in detail.

[0049] In order to avoid the problem that the contact between the planing block and the automobile parts generates a large cutting force, which causes micro cracks or excessive roughness in the spline groove, the present invention provides a cooling and lubricating mechanism 5. During the planing process, since the advancing distance of the reference plate 27 is less than the advancing distance of the annular plate 21, the annular plate 21 is able to move away from the reference plate 27 during the planing process, and approach the reference plate 27 under the elastic force of the first spring 29, so that the annular plate 21 can reciprocate horizontally relative to the reference plate 27, and can drive the piston block 52 to pump the liquid through the push rod 53. The cavity 51 performs reciprocating horizontal displacement, thereby continuously pumping the coolant in the annular liquid storage tank 56 into the pump liquid cavity 51 through the pumping pipe 57, and continuously pumping the coolant in the pump liquid cavity 51 into the through hole 54 of the planing block 3 through the discharge pipe 55, so that the coolant can flow to the planing position through the through hole 54, and the planing position is cooled and lubricated in real time during the intermittent planing process, so as to prevent the contact between the planing block 3 and the automobile parts from generating a large cutting force, avoid the generation of micro cracks or excessive roughness in the spline groove, and improve the planing effect on the automobile parts.

[0050] The present invention can be explained by the following operation mode:

[0051] Before planing, the automobile parts are placed between the upper fixed block 121 and the lower moving block 122, and the lower moving block 122 is pushed upward and close to the upper fixed block 121 by the electric telescopic rod 123, so that the automobile parts are clamped between the upper fixed block 121 and the lower moving block 122, and the mounting ring 13 is driven to slide horizontally close to the automobile parts by the reciprocating screw rod or the hydraulic telescopic rod, so that the planing block 3 on the planing piece 14 is close to the side wall of the automobile parts;

[0052] The motor is turned on, and the two transmission rods 23 are driven to rotate in the opposite direction through the driving gear 221 and the transmission gear 222, so that the two large gears 24 and the two small gears 25 rotate in the opposite direction synchronously. When the large gear 24 is meshed with the bar-shaped tooth groove 26 and the small gear 25 is meshed with the rack 28, the annular plate 21 is pushed forward through the bar-shaped tooth groove 26, and the planing member 14 is pushed forward to achieve the planing processing of the automobile parts. When the large gear 24 is no longer meshed with the bar-shaped tooth groove 26 and the small gear 25 is no longer meshed with the rack 28, the reference plate 27 is pushed forward and its pushing distance is less than the pushing distance of the annular plate 21, so that the annular plate 21 is reset under the elastic force of the first spring 29, and its position is moved towards the direction of the automobile parts by a station distance compared to the original position, so that when the annular plate 21 and the planing member 14 are pushed forward next time, they go deeper into the workpiece, and the automobile parts are intermittently planed;

[0053] During the process of resetting the annular plate 21, the counterweight 49 overcomes the elastic force of the third spring 410 under the action of inertia force, and moves to the side of the hydraulic chamber 48 away from the mounting ring 13, so that the hydraulic oil in the hydraulic rod 47 can enter the hydraulic chamber 48, and the hydraulic rod 47 contracts to pull the piston plate 43, further driving the connecting rod 44 and the planing block 3 to retract into the storage chamber 41. The movement of the piston plate 43 can discharge the air in the suction chamber 42 into the air pipe 411. The increase of gas in the air pipe 411 will cause the telescopic airbag 412 to expand. When the planing block 3 is completely retracted into the storage chamber 41, the gas in the air pipe 411 is quickly discharged, so that the gas can quickly impact between the planing block 3 and the spline groove, so as to clean up the planed debris.

[0054] During the planing process, the annular plate 21 is able to perform reciprocating horizontal displacement relative to the reference plate 27, and can drive the piston block 52 to perform reciprocating horizontal displacement in the pump liquid chamber 51 through the push rod 53, thereby continuously pumping the coolant in the annular liquid storage tank 56 into the pump liquid chamber 51 through the pumping pipe 57, and continuously pumping the coolant in the pump liquid chamber 51 into the through hole 54 of the planing block 3 through the discharge pipe 55, so that the coolant can flow to the planing position through the through hole 54, and the planing position is cooled and lubricated in real time during the intermittent planing process.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A planing device for the internal spline of an automobile component shaft, characterized in that: include: A planing table (1), wherein a side plate (11) is fixedly connected to the planing table (1), a clamping mechanism (12) for fixing a workpiece is provided on the side plate (11), a mounting ring (13) is slidably connected to the top of the planing table (1) in a horizontal direction, and a planing member (14) is provided on a side of the mounting ring (13) close to the workpiece; An intermittent planing mechanism (2) is used to drive a planing member (14) to advance intermittently to avoid excessive wear of the planing member (14), the intermittent planing mechanism (2) comprising an annular plate (21) fixedly connected to the side wall of the planing member (14), a support plate (22) fixedly connected to the inner wall of the mounting ring (13), two transmission rods (23) rotating in opposite directions being rotatably connected to the support plate (22), a large gear (24) and a small gear (25) being fixedly connected to the transmission rod (23), and the The large gear (24) and the small gear (25) are both incomplete gears. The inner wall of the annular plate (21) is provided with a strip-shaped tooth groove (26) meshing with the large gear (24). One side of the mounting ring (13) is connected to a reference plate (27) in a horizontal unidirectional sliding manner. The reference plate (27) is fixedly connected with two racks (28) meshing with the small gear (25). A plurality of first springs (29) distributed in a circumferential array are provided between the reference plate (27) and the annular plate (21). The circumferential side wall of the planing member (14) is provided with a plurality of planing blocks (3) distributed in a circumferential array, and the planing member (14) is provided with a plurality of cleaning mechanisms (4) used in conjunction with the planing blocks (3) at corresponding positions, for cleaning the debris in the spline grooves machined by the planing blocks (3), the cleaning mechanisms (4) comprising a storage cavity (41) provided inside the planing member (14), the planing blocks (3) being airtightly slidably connected to the inner wall of the storage cavity (41), and the planing member (14) having a plurality of cleaning mechanisms (4) for use in conjunction with the planing blocks (3) at corresponding positions, for cleaning the debris in the spline grooves machined by the planing blocks (3). A suction chamber (42) is provided in the suction chamber (42), a piston plate (43) is slidably connected in the vertical direction, a connecting rod (44) is fixedly connected between the piston plate (43) and the planing block (3), a pumping passage (45) communicating with the outside is provided on the inner wall of the suction chamber (42), an exhaust passage (46) communicating with the storage chamber (41) is also provided on the inner wall of the suction chamber (42), and a first one-way valve is provided in both the pumping passage (45) and the exhaust passage (46); A hydraulic rod (47) is fixedly connected to the bottom wall of the air extraction chamber (42); a telescopic end of the hydraulic rod (47) is fixedly connected to the piston plate (43); a hydraulic chamber (48) communicating with the interior of the hydraulic rod (47) is provided in the planing member (14) below the air extraction chamber (42); a counterweight (49) is airtightly slidably connected to the interior of the hydraulic chamber (48); and a third spring (410) is provided between the counterweight (49) and the inner wall of the hydraulic chamber (48).

2. The planing device for the internal spline of the automobile component shaft according to claim 1, characterized in that: The mounting ring (13) is provided with two symmetrically arranged locking grooves (131), a ratchet block (132) is slidably connected in the vertical direction in the locking groove (131), a second spring (133) is provided between the ratchet block (132) and the locking groove (131), and two ratchet plates (134) are fixedly connected to one side of the reference plate (27) close to the mounting ring (13), the ratchet plates (134) are slidably connected to the inner wall of the locking groove (131) in the horizontal direction, and the ratchet plates (134) cooperate with the ratchet blocks (132) at corresponding positions.

3. The planing device for the internal spline of the automobile component shaft according to claim 2, characterized in that: The support plate (22) is rotatably connected to two mutually meshing driving gears (221); the transmission rod (23) is fixedly connected to a transmission gear (222) meshing with a driving gear (221) at a corresponding position; and a motor for driving one of the driving gears (221) is fixedly connected to a side of the support plate (22) away from the driving gears (221).

4. The planing device for the internal spline of the automobile component shaft according to claim 1, characterized in that: The exhaust passage (46) is airtightly connected to an air delivery pipe (411), and the air delivery pipe (411) is fixedly connected to a telescopic air bag (412).

5. The planing device for the internal spline of the automobile component shaft according to claim 1, characterized in that: A plurality of cooling and lubricating mechanisms (5) for use with the planing block (3) are provided between the annular plate (21) and the reference plate (27) and are used to cool and lubricate the planing position during the planing process. The cooling and lubricating mechanisms (5) include a pump fluid chamber (51) provided inside the annular plate (21), a piston block (52) being airtightly and slidably connected inside the pump fluid chamber (51), a push rod (53) being fixedly connected to the piston block (52), and one end of the push rod (53) extending The planing block (3) is provided with a through hole (54), a liquid discharge pipe (55) is fixedly connected between the pump liquid chamber (51) and the through hole (54), an annular liquid storage tank (56) is fixedly connected inside the annular plate (21), a liquid extraction pipe (57) is fixedly connected between the annular liquid storage tank (56) and the pump liquid chamber (51), and a second one-way valve is provided inside both the liquid extraction pipe (57) and the liquid discharge pipe (55).

6. The planing device for the internal spline of the automobile component shaft according to claim 1, characterized in that: The clamping mechanism (12) comprises an upper fixed block (121) fixedly connected to the side plate (11) and a lower movable block (122) slidably connected to the side plate (11), and an electric telescopic rod (123) for driving the lower movable block (122) is fixedly connected to the planing table (1).

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