CN117568562A

CN117568562A - Heat treatment device for precision bearing

Info

Publication number: CN117568562A
Application number: CN202311559390.1A
Authority: CN
Inventors: 王正国; 程波; 陆以春
Original assignee: Jiangsu Baojie Automobile Components And Parts Forging Co ltd
Current assignee: Jiangsu Baojie Automobile Components And Parts Forging Co ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-02-20
Anticipated expiration: 2043-11-22
Also published as: CN117568562B

Abstract

The invention discloses a heat treatment device for a precision bearing, which belongs to the field of heat treatment devices and comprises a machine body, wherein a rotating cavity is formed in the machine body, a workpiece conveying assembly is rotationally connected to the middle position in the rotating cavity, a cleaning cavity is formed in the bottom of the rotating cavity, and a cleaning mechanism is arranged in the cleaning cavity; lifting grooves are formed in two sides of the rotating cavity, lifting frames matched with the lifting grooves are movably connected inside the lifting grooves, elastic sealing elements are arranged between two sides of the top end face of each lifting frame and the lifting grooves, workpiece collecting and conveying components are arranged between the lifting frames and the rotating cavity, and the workpiece conveying components specifically comprise: the rotating disc is rotatably connected in the rotating cavity, and a rotating motor is embedded on the inner wall of the rotating cavity at one side of the rotating disc. According to the invention, the influence on the vacuumizing effect can be avoided on the premise of ensuring the orderly collection and delivery of the bearing, and further, the influence on the heat treatment effect of the bearing due to the reaction of the bearing and air is avoided.

Description

Heat treatment device for precision bearing

Technical Field

The invention relates to a heat treatment device, in particular to a heat treatment device for a precision bearing.

Background

Heat treatment refers to a metal hot working process in which a material is heated, held and cooled in a solid state to achieve a desired texture and properties. The bearing is an important part in modern mechanical equipment, and has the main functions of supporting a mechanical rotating body, reducing the friction coefficient in the motion process, ensuring the rotation precision and mainly comprising an outer ring, an inner ring, rolling bodies and a retainer according to the difference of the friction properties of moving elements. In order to better assemble the bearing outer ring in the bearing production process, the bearing outer ring is generally heated by a heat treatment process, so that the inner diameter of the bearing outer ring is increased, but when a heat treatment device of a bearing on the market is used for feeding the bearing outer ring and feeding the bearing outer ring, the heat treatment device is required to be repeatedly opened, so that the vacuumizing effect is influenced, the bearing outer ring is easy to react with air, the heat treatment effect of the bearing outer ring is influenced, and therefore, the problem of how to avoid influencing the vacuumizing effect on the premise of ensuring the orderly feeding of the bearing outer ring is the current urgent need to be solved.

Accordingly, a heat treatment apparatus for a precision bearing is provided by those skilled in the art to solve the problems set forth in the background art described above.

Disclosure of Invention

The invention aims to provide a heat treatment device for a precision bearing, which can avoid influencing the vacuumizing effect on the premise of ensuring the orderly collection and transmission of the outer ring of the bearing, and further avoid influencing the heat treatment effect of the outer ring of the bearing due to the reaction of the outer ring of the bearing and air, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the heat treatment device for the precision bearing comprises a machine body, wherein a rotary cavity is formed in the machine body, a workpiece conveying assembly is rotatably connected to the middle position in the rotary cavity, a cleaning cavity is formed in the bottom of the rotary cavity, and a cleaning mechanism is arranged in the cleaning cavity; lifting grooves are formed in two sides of the rotating cavity, lifting frames matched with the lifting grooves are movably connected in the lifting grooves, elastic sealing pieces are arranged between two sides of the top end face of each lifting frame and the lifting grooves, and workpiece receiving and conveying components are arranged between the lifting frames and the rotating cavity.

As a further scheme of the invention: the workpiece conveying assembly specifically comprises: the rotary table is rotationally connected inside the rotary cavity, rotating electrical machines are embedded on the rotary cavity inner wall of rotary table one side, and rotating electrical machines output shaft and rotary table side center fixed connection, the lateral surface fixedly connected with of rotary table four evenly distributed's guide pillar, and the tip position of guide pillar is equipped with the anchor clamps mounting panel, one side swing joint of anchor clamps mounting panel has annular fly leaf, and the annular fly leaf can remove along the guide pillar through the first driving piece that sets up, one side fixedly connected with high temperature resistant air chuck of annular fly leaf is kept away from to the anchor clamps mounting panel, and fixedly connected with a plurality of evenly distributed's arc connecting plates between annular fly leaf and the anchor clamps mounting panel.

As still further aspects of the invention: the first driving piece specifically includes: offer the inside actuating chamber at the rotary disk, actuating chamber inside intermediate position fixedly connected with baffle, and baffle one side fixedly connected with driving motor, the driving motor output shaft runs through the baffle and fixedly connected with gear wheel, set up spacing spout on the guide pillar lateral surface of anchor clamps mounting panel one side, and spacing spout inside rotation is connected with first lead screw, the one end of first lead screw runs through guide pillar and rotary disk and extends to in the actuating chamber, and first lead screw tip fixedly connected with in the actuating chamber with gear wheel engaged with drive gear, the position fixedly connected with spacing slider of the corresponding spacing spout of inboard of annular fly leaf, and spacing slider swing joint is inside spacing spout, first lead screw runs through spacing slider and rather than threaded connection.

As still further aspects of the invention: the elastic sealing element specifically comprises: the device comprises an arc-shaped elastic plate fixed on the edge of the top end face of the lifting frame, a sealing strip is fixedly connected to the position, close to the end, of the outer side face of the arc-shaped elastic plate, the outer side face of the sealing strip abuts against the inner wall of the lifting groove, a torsion spring is arranged on the inner side face of the arc-shaped elastic plate, and two ends of the torsion spring are fixedly connected with the inner side face of the arc-shaped elastic plate and the top end of the outer side face of the lifting frame respectively.

As still further aspects of the invention: the workpiece receiving and delivering assembly specifically comprises: offer a plurality of circular grooves that parallel from top to bottom in crane side, the equal fixedly connected with spacing gum ring in the inner wall both sides border position of circular groove, the top flexible chamber has been seted up to circular groove one side, rotatory intracavity wall corresponds flexible chamber's position and has seted up with circular groove assorted guide mouth, one flexible intracavity is embedded to be equipped with the propelling movement cylinder, and propelling movement cylinder output shaft fixedly connected with push plate, another flexible intracavity's inside is inlayed and is equipped with the recovery cylinder, and the output shaft fixedly connected with recovery plate of recovery cylinder, a side center fixedly connected with locating plate of recovery plate, the both sides of crane are equipped with the second driving piece and are used for driving the crane and go up and down.

As still further aspects of the invention: the second driving piece specifically includes: the lifting seat is fixed at the bottom ends of two side surfaces of the lifting frame, the positions of the inner walls of two sides of the lifting groove, corresponding to the lifting seat, are provided with strip-shaped grooves, the lifting seat is movably connected inside the strip-shaped grooves and matched with the strip-shaped grooves, the second lead screw is rotatably connected inside the strip-shaped grooves and penetrates through the lifting seat and is in threaded connection with the lifting seat, the stepping motor is embedded below the second lead screw, and an output shaft of the stepping motor is fixedly connected with the bottom end of the corresponding second lead screw.

As still further aspects of the invention: the cleaning mechanism specifically comprises: the cleaning device comprises a plurality of cleaning plates which are horizontally arranged in parallel, bristles are fixedly connected to the top ends of the cleaning plates, shaft rods are fixedly connected to the two side faces of the cleaning plates, the shaft rods are rotatably connected with the inner walls of the cleaning cavities, belt pulleys are fixedly connected to the outer side faces of the shaft rods, two adjacent belt pulleys are in transmission connection through a transmission belt, a transmission motor is embedded in the inner wall of the cleaning cavity on one side of one belt pulley, and an output shaft of the transmission motor is fixedly connected with the corresponding shaft rods.

As still further aspects of the invention: the top of the rotating cavity is provided with a heat treatment cavity, and a heating pipe is fixedly connected inside the heat treatment cavity.

As still further aspects of the invention: the filter chamber that communicates with it has been seted up to the below of cleaning the chamber, and the inside fixedly connected with filter screen in filter chamber, the evacuation hole with the filter chamber intercommunication has been seted up to the lateral surface of organism, and the evacuation hole is connected with external evacuating equipment.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the vacuum-pumping device, the workpiece conveying assembly, the elastic sealing piece and the workpiece collecting and conveying assembly are arranged, and the vacuum-pumping effect can be prevented from being influenced under the premise that the bearing outer ring is orderly collected and conveyed by the aid of the cooperation of the workpiece conveying assembly, the elastic sealing piece and the workpiece collecting and conveying assembly, so that the heat treatment effect of the bearing outer ring is prevented from being influenced by the reaction of the bearing outer ring and air.

2. The application is through the work piece conveying assembly that sets up, can drive each guide pillar rotation through pivoted rotary disk, and then will wait the bearing outer lane of heat treatment to send into the heat treatment chamber in proper order and will accomplish the bearing outer lane of heat treatment and send out in proper order, and the whole process that the bearing outer lane shifted is simple high-efficient, facilitate the use.

3. This application is through the first driving piece that sets up, can drive annular fly leaf when needs to be close to or keep away from to the rotary disk, what needs to explain is, the annular fly leaf can effectively connect the bearing outer lane that the propelling movement cylinder pushed when being close to the rotary disk and send into rotatory chamber, and when annular fly leaf is kept away from to the rotary disk, not only can go up the bearing outer lane that reaches the heat treatment chamber below, can also send out rotatory chamber with the bearing outer lane that accomplishes the heat treatment, simultaneously, the anchor clamps mounting panel is close to the guide mouth and can block up the guide mouth to a certain extent, improve the sealed effect of evacuation.

4. There is the clearance between crane and the lift groove both sides inner wall, the setting of the elastic sealing spare of this application can be under the prerequisite that does not influence the normal lift of crane and block up the clearance, improves the sealed effect of evacuation, in addition, the crane length of this application is less than the lift groove degree of depth, waits to accomplish the lift on all bearing inner rings send into send out the back, and the elastic sealing spare just is located the lift groove top, just so can not influence the evacuation effect because of the unloading in proper order when accomplishing a plurality of bearing outer rings heat treatment.

5. In the heat treatment process, the surface of the bearing outer ring has residues, the residues are easy to adhere to the surface of the high-temperature-resistant air chuck, and the cleaning mechanism can quickly clean the adhered residues, so that the heat treatment effect of the bearing outer ring received next time is avoided from being influenced by the residues.

Drawings

FIG. 1 is a schematic view of a heat treatment apparatus for a precision bearing;

FIG. 2 is a schematic view of a workpiece transfer assembly in a thermal processing apparatus for precision bearings;

FIG. 3 is a view showing the combination of a guide post and an annular movable plate in a heat treatment apparatus for a precision bearing;

FIG. 4 is an internal view of a rotating disk in a heat treatment apparatus for precision bearings;

FIG. 5 is a view of section A of FIG. 1 in a heat treatment apparatus for precision bearings;

FIG. 6 is a view of section B of FIG. 1 in a heat treatment apparatus for precision bearings;

FIG. 7 is a view showing the combination of a lifter and a second screw in a heat treatment apparatus for a precision bearing;

FIG. 8 is a view of section C of FIG. 1 in a heat treatment apparatus for precision bearings;

fig. 9 is a view showing a combination of a cleaning plate and a driving motor in a heat treatment apparatus for a precision bearing.

In the figure: 1. a body; 2. a rotating chamber; 3. a heat treatment chamber; 4. heating pipes; 5. cleaning the cavity; 6. a lifting groove; 7. a rotating disc; 8. a filter chamber; 9. a filter screen; 10. a vacuum hole; 11. a rotating electric machine; 12. a lifting frame; 13. a bearing outer ring; 14. a guide post; 15. an annular movable plate; 16. an arc-shaped connecting plate; 17. a clamp mounting plate; 18. a high temperature resistant air chuck; 19. limiting sliding grooves; 20. a first lead screw; 21. a limit sliding block; 22. a drive chamber; 23. a partition plate; 24. a driving motor; 25. a gear plate; 26. a transmission gear; 27. a circular groove; 28. a limiting rubber ring; 29. a telescopic chamber; 30. a pushing cylinder; 31. a pushing plate; 32. an arc-shaped elastic plate; 33. a sealing strip; 34. a torsion spring; 35. a recovery cylinder; 36. a recovery plate; 37. a positioning plate; 38. a bar-shaped groove; 39. a stepping motor; 40. a second lead screw; 41. a lifting seat; 42. a cleaning plate; 43. brushing; 44. a shaft lever; 45. a belt pulley; 46. a drive belt; 47. and (5) a transmission motor.

Detailed Description

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 9, in an embodiment of the present invention, a heat treatment device for a precision bearing includes a machine body 1, a rotating cavity 2 is provided in the machine body 1, a workpiece conveying assembly is rotatably connected to a middle position in the rotating cavity 2, a cleaning cavity 5 is provided at a bottom of the rotating cavity 2, and a cleaning mechanism is provided in the cleaning cavity 5; lifting grooves 6 are formed in two sides of the rotary cavity 2, lifting frames 12 matched with the lifting grooves 6 are movably connected inside the lifting grooves 6, elastic sealing elements are arranged between two sides of the top end surface of the lifting frames 12 and the lifting grooves 6, and workpiece receiving and conveying components are arranged between the lifting frames 12 and the rotary cavity 2. Through work piece conveying subassembly, elastic sealing spare and the work piece that sets up receive and send the subassembly, the three cooperation is used and can be avoided influencing the evacuation effect under the prerequisite of guaranteeing that bearing outer lane 13 is received in order to send, and then avoids bearing outer lane 13 and air reaction to influence the heat treatment effect of bearing outer lane 13.

In this embodiment: the work piece conveying assembly specifically includes: rotating disk 7 of rotating connection in rotating cavity 2, rotating motor 11 is inlayed on the rotating cavity 2 inner wall of rotating disk 7 one side, and rotating motor 11 output shaft and rotating disk 7 side center fixed connection, the lateral surface fixedly connected with four evenly distributed's of rotating disk 7 guide pillar 14, and the tip position of guide pillar 14 is equipped with anchor clamps mounting panel 17, one side swing joint of anchor clamps mounting panel 17 has annular fly leaf 15, and annular fly leaf 15 can remove along guide pillar 14 through the first driving piece that sets up, a side fixedly connected with high temperature resistant air chuck 18 of annular fly leaf 15 is kept away from to anchor clamps mounting panel 17, and a plurality of evenly distributed's of arc connecting plates 16 of fixedly connected with between annular fly leaf 15 and the anchor clamps mounting panel 17. The workpiece conveying assembly can drive each guide post 14 to rotate through the rotating rotary disk 7, so that the bearing outer ring 13 to be subjected to heat treatment is sequentially conveyed into the heat treatment cavity 3, the bearing outer ring 13 subjected to heat treatment is sequentially conveyed out, and the whole process of transferring the bearing outer ring 13 is simple and efficient and is convenient to use.

In this embodiment: the first driving piece specifically includes: the driving cavity 22 is formed in the rotating disc 7, the partition plate 23 is fixedly connected to the middle position in the driving cavity 22, the driving motor 24 is fixedly connected to one side of the partition plate 23, an output shaft of the driving motor 24 penetrates through the partition plate 23 and is fixedly connected with the gear plate 25, the limit sliding groove 19 is formed in the outer side face of the guide pillar 14 on one side of the clamp mounting plate 17, the first guide screw 20 is rotationally connected to the inner side of the limit sliding groove 19, one end of the first guide screw 20 penetrates through the guide pillar 14 and the rotating disc 7 and extends into the driving cavity 22, the end portion of the first guide screw 20 in the driving cavity 22 is fixedly connected with the transmission gear 26 meshed with the gear plate 25, the position, corresponding to the limit sliding groove 19, of the inner side of the annular movable plate 15 is fixedly connected with the limit sliding block 21, the limit sliding block 21 is movably connected to the inner side of the limit sliding groove 19, and the first guide screw 20 penetrates through the limit sliding block 21 and is in threaded connection with the limit sliding block. The first driving member is provided to drive the annular movable plate 15 toward or away from the jig mounting plate 17 as needed. When the annular movable plate 15 approaches the rotating disc 7, the bearing outer ring 13 pushed by the pushing cylinder 30 can be effectively connected and fed into the rotating cavity 2, and when the annular movable plate 15 is far away from the rotating disc 7, the bearing outer ring 13 reaching the lower part of the heat treatment cavity 3 can be fed, the bearing outer ring 13 subjected to heat treatment can be fed out of the rotating cavity 2, meanwhile, the clamp mounting plate 17 approaches the material guide opening to block the material guide opening to a certain extent, and the sealing effect of vacuumizing is improved.

In this embodiment: the elastic sealing member specifically includes: the arc-shaped elastic plate 32 is fixed on the edge of the top end surface of the lifting frame 12, the sealing strip 33 is fixedly connected to the position, close to the end, of the outer side surface of the arc-shaped elastic plate 32, the outer side surface of the sealing strip 33 abuts against the inner wall of the lifting groove 6, the torsion spring 34 is arranged on the inner side surface of the arc-shaped elastic plate 32, and two ends of the torsion spring 34 are fixedly connected with the inner side surface of the arc-shaped elastic plate 32 and the top end of the outer side surface of the lifting frame 12 respectively. There is the clearance between crane 12 and the inner wall of crane 6 both sides, and the setting of elastic sealing spare can be under the prerequisite that does not influence crane 12 normal lift, improves the sealed effect of evacuation, and in addition, crane 12 length of this application is less than crane 6 degree of depth, waits to accomplish the sending in of all bearing inner race 13 on the crane 12 and send out the back, and elastic sealing spare just is located crane 6 tops, just so can not influence the evacuation effect because of the unloading in proper order when accomplishing a plurality of bearing inner race 13.

In this embodiment: the work piece receiving and delivering assembly specifically comprises: offer a plurality of circular grooves 27 that parallel from top to bottom in crane 12 side, the equal fixedly connected with spacing plastic ring 28 in circular groove 27's inner wall both sides border position, flexible chamber 29 has been seted up to the circular groove 27 one side of top, flexible chamber 2 inner wall corresponds flexible chamber 29's position and has seted up the guide mouth with circular groove 27 assorted, a flexible chamber 29 embeds has push cylinder 30, and push cylinder 30 output shaft fixedly connected with push plate 31, the inside of another flexible chamber 29 is inlayed and is equipped with recovery cylinder 35, and recovery cylinder 35's output shaft fixedly connected with recovery plate 36, recovery plate 36's a side center fixedly connected with locating plate 37, crane 12's both sides are equipped with the second driving piece and are used for driving crane 12 and go up and down. The workpiece receiving and delivering assembly can accurately and rapidly deliver each bearing outer ring 13 into the rotating cavity 2 or out of the rotating cavity 2 in sequence in cooperation with the workpiece conveying assembly.

In this embodiment: the second driving piece specifically includes: the lifting seat 41 fixed at the bottom ends of the two side surfaces of the lifting frame 12, the bar-shaped groove 38 is formed in the position, corresponding to the lifting seat 41, of the inner walls of the two sides of the lifting groove 6, the lifting seat 41 is movably connected inside the bar-shaped groove 38 and matched with the bar-shaped groove, the second lead screw 40 is rotatably connected inside the bar-shaped groove 38, the second lead screw 40 penetrates through the lifting seat 41 and is in threaded connection with the lifting seat, the stepping motor 39 is embedded below the second lead screw 40, and an output shaft of the stepping motor 39 is fixedly connected with the bottom end of the corresponding second lead screw 40. The second driving member can quickly and stably drive the lifting frame 12 to lift up and down along the lifting groove 6.

In this embodiment: the cleaning mechanism specifically comprises: the cleaning device comprises a plurality of cleaning plates 42 which are horizontally arranged in parallel, bristles 43 are fixedly connected to the top ends of the cleaning plates 42, shaft rods 44 are fixedly connected to the two side faces of the cleaning plates 42, the shaft rods 44 are rotatably connected with the inner walls of the cleaning cavities 5, belt pulleys 45 are fixedly connected to the outer side faces of the shaft rods 44, two adjacent belt pulleys 45 are in transmission connection through a transmission belt 46, a transmission motor 47 is embedded in the inner wall of the cleaning cavity 5 on one side of one belt pulley 45, and an output shaft of the transmission motor 47 is fixedly connected with the corresponding shaft rod 44. In the heat treatment process, residues are generated on the surface of the bearing outer ring 13, the residues are easy to adhere to the surface of the high-temperature-resistant air chuck 18, and the cleaning mechanism can quickly clean the adhered residues, so that the influence of the residues on the heat treatment effect of the bearing outer ring 13 received next time is avoided.

In this embodiment: the top of the rotating cavity 2 is provided with a heat treatment cavity 3, and a heating pipe 4 is fixedly connected inside the heat treatment cavity 3. After the bearing outer ring 13 is fed into the heat treatment chamber 3, the heating pipe 4 can heat the bearing outer ring for heat treatment.

In this embodiment: the filter chamber 8 communicated with the cleaning chamber 5 is arranged below the cleaning chamber 5, a filter screen 9 is fixedly connected inside the filter chamber 8, a vacuumizing hole 10 communicated with the filter chamber 8 is arranged on the outer side surface of the machine body 1, and the vacuumizing hole 10 is connected with external vacuumizing equipment. The filter screen 9 in the filter cavity 8 can filter residues, so that the residues are prevented from being pumped into external vacuumizing equipment.

The working principle of the invention is as follows: in use, first, the left lifting frame 12 is lifted to the highest position, so that all the round grooves 27 on the lifting frame 12 are exposed, and the specific lifting process is as follows: the stepping motor 39 operates to drive the corresponding second lead screw 40 to rotate, and the lifting seat 41 slowly ascends in the bar-shaped groove 38 along the second lead screw 40, so as to drive the whole lifting frame 12 to ascend. Subsequently, the worker sequentially places the respective bearing outer rings 13 to be processed into the circular grooves 27, and during the placing, the bearing outer rings 13 are caught between the two stopper rubber rings 28 in the circular grooves 27, and then lowers the lifting frame 12 to the lowest position, at this time, the circular grooves 27 at the highest position on the lifting frame 12 are aligned with the material guiding ports and the pushing plates 31 at the left side. It should be noted that, in the lifting process of the lifting frame 12, the sealing strip 33 on the arc-shaped elastic plate 32 always abuts against the inner wall of the lifting groove 6 under the elastic action force of the torsion spring 34, when the arc-shaped elastic plate 32 encounters a raised barrier on the inner wall of the lifting groove 6, the barrier will press the arc-shaped elastic plate 32 inwards to deform, the torsion spring 34 compresses and deforms, and when the arc-shaped elastic plate 32 passes over the barrier, the elastic potential energy released by the torsion spring 34 returns to the original position, so that the gap can be blocked under the premise of not affecting the normal lifting of the lifting frame 12, and the sealing effect of vacuumizing is improved.

Then, the pushing cylinder 30 operates to extend the pushing plate 31 out of the left expansion chamber 29 until the pushing plate 31 pushes the first highest bearing outer race 13 out of the circular groove 27 and into the rotary chamber 2 along the left feed opening. Meanwhile, the first driving piece operates to drive the annular movable plate 15 to approach the direction of the fixture mounting plate 17, specifically: the driving motor 24 operates to drive the gear plate 25 to rotate, and then drives the transmission gear 26 meshed with the gear plate 25 to rotate, the first lead screw 20 rotates in a following manner, in the process, the limit sliding block 21 slowly moves along the first lead screw 20 in the limit sliding groove 19, and then drives the annular movable plate 15 to move, and the annular movable plate 15 is connected with the clamp mounting plate 17 through the arc-shaped connecting plate 16, so that the clamp mounting plate 17 and the high-temperature-resistant air chuck 18 move in a following manner.

Along with the movement of the annular movable plate 15 and the pushing of the pushing cylinder 30, the bearing outer ring 13 is pushed to be sleeved on the high-temperature-resistant air chuck 18, namely, the high-temperature-resistant air chuck 18 is inserted into the inner circle of the bearing outer ring 13, and at the moment, the high-temperature-resistant air chuck 18 operates to expand the clamping teeth outwards to be clamped against the inner circle of the bearing outer ring 13. Next, the first driving member operates to drive the annular movable plate 15 back to the initial position, and the high temperature resistant air chuck 18 and the bearing outer race 13 enter the rotating chamber 2 during the process, and then the bearing outer race 13 is rotated and sent to the lower part of the heat treatment chamber 3, specifically: the rotating motor 11 operates to drive the rotating disk 7 to rotate ninety degrees, and the guide post 14 rotates in a following way, so that the bearing outer ring 13 on the guide post 14 is sent to the top point, namely, the lower part of the heat treatment cavity 3. Then, the driving motor 24 of the first driving member is operated again to drive the annular movable plate 15 to move towards the clamp mounting plate 17, and then drive the clamp mounting plate 17 to move, at this time, the bearing outer ring 13 is pushed by the uppermost clamp mounting plate 17 to move upwards until entering the hollow interior of the heating pipe 4, meanwhile, the left and right clamp mounting plates 17 respectively block the material guiding holes on the left and right sides, the high temperature resistant air chucks 18 on the left and right clamp mounting plates 17 respectively extend into the corresponding material guiding holes, the high temperature resistant air chucks 18 on the left clamp mounting plate 17 carry out material receiving of the next bearing outer ring 13, the high temperature resistant air chucks 18 on the right clamp mounting plate 17 carry out previous material feeding of the bearing outer ring 13 for completing heat treatment, and the high temperature resistant air chucks 18 on the lower clamp mounting plate 17 are in contact with bristles 43 of the cleaning mechanism.

After the bearing outer ring 13 is sent into the heat treatment cavity 3, the heating pipe 4 can heat the bearing outer ring, after the bearing outer ring 13 is subjected to heat treatment, the annular movable plate 15 is driven to approach the direction of the rotating disc 7 through the first driving piece, and in the process, the second bearing outer ring 13 is sent into the rotating cavity 2. Then, the rotating motor 11 is operated again to drive the rotating disk 7 to rotate ninety degrees again, at this time, the bearing outer ring 13 after heat treatment is rotated to be aligned with the material guiding opening on the right side and the recovery plate 36, the second bearing outer ring 13 reaches the lower side of the heat treatment cavity 3, then the second bearing outer ring 13 is sent into the heat treatment cavity 3 through the first driving piece to perform heat treatment, the first bearing outer ring 13 is pushed by the fixture mounting plate 17 and the high temperature resistant air chuck 18 to be sent into the corresponding circular groove 27 from the material guiding opening on the right side, during the process, the bearing outer ring 13 is pushed to pass through the first limiting rubber ring 28 in the corresponding circular groove 27 on the right side, at the same time, the recovery cylinder 35 is operated to push out the recovery plate 36, so that the positioning plate 37 on the recovery plate 36 stretches into the circular groove 27 to abut against the end face of the first bearing outer ring 13, and the bearing outer ring 13 is prevented from being separated from the circular groove 27, thereby ensuring that the first bearing outer ring 13 is positioned accurately in the circular groove 27, namely, the bearing outer ring 13 is positioned between the two limiting rubber rings 28, during the process, the inner diameter of the positioning plate 37 is required to be smaller than the first positioning plate 37 and the high temperature resistant air chuck 18 is not to be pulled back into contact with the circular groove 27, and then the high temperature resistant air chuck is driven to be retracted, and the high temperature resistant air chuck is not required to be retracted, and the positioning plate 37 is also to be retracted into contact with the circular groove 27, and then, and the high temperature resistant air chuck is moved. After the first bearing outer ring 13 enters the circular groove 27 at the first highest position of the right lifting frame 12, the first bearing outer ring 13 is limited by two limiting glue rings 28 in the circular groove 27, then the right lifting frame 12 is lowered by one unit height through the second driving piece, one unit height is defined as the height of the center point of two adjacent circular grooves 27, it is to be noted that each time one bearing outer ring 13 is sent into the rotating cavity 2, the left lifting frame 12 is raised by one unit height, and each time one bearing outer ring 13 which completes the heat treatment is sent out and enters the right lifting frame 12, the right lifting frame 12 is raised by one unit height, and the specific working principle of the second driving piece is as follows: the stepping motor 39 operates to drive the second screw 40 to rotate, and the lifting seat 41 slowly lifts along the second screw 40 in the bar-shaped groove 38, so as to drive the lifting frame 12 to lift.

The above operation is repeated until all the bearing outer rings 13 are sequentially fed into the rotary chamber 2 to finish the heat treatment, and all the bearing outer rings 13 are finished to finish the heat treatment and fed onto the right-side lifter 12, and then, both lifters 12 are lifted to the top, and the worker can put the bearing outer ring 13 to be treated again on the left-side lifter 12, and remove the bearing outer ring 13 finished with the heat treatment on the right-side lifter 12. In the heat treatment process, residues are generated on the surface of the bearing outer ring 13, and the residues are easily attached to the surface of the high temperature resistant air chuck 18, and when each high temperature resistant air chuck 18 rotates to the cleaning mechanism to contact after the bearing outer ring 13 after heat treatment is sent out of the rotating cavity 2, the cleaning mechanism can quickly clean the attached residues, so that the effect of the heat treatment of the bearing outer ring 13 received next time is prevented from being affected by the residues. The specific cleaning process is as follows: the driving motor 47 operates to drive one of the pulleys 45 to repeatedly rotate forward and backward, all of the pulleys 45 rotate synchronously under the driving action of the driving belt 46, and the shaft lever 44 and the cleaning plate 42 rotate in a following manner, so that the bristles 43 on the cleaning plate 42 clean the surface of the high temperature resistant air chuck 18 back and forth. In addition, in the heat treatment process, the outside vacuumizing equipment vacuumizes the inside of the rotary cavity 2 through the vacuumizing hole 10, and residues pumped out are filtered by the filter screen 9 after entering the filter cavity 8.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The heat treatment device for the precision bearing is characterized by comprising a machine body (1), wherein a rotary cavity (2) is formed in the machine body (1), a workpiece conveying assembly is rotationally connected to the middle position in the rotary cavity (2), a cleaning cavity (5) is formed in the bottom of the rotary cavity (2), and a cleaning mechanism is arranged in the cleaning cavity (5);

lifting grooves (6) are formed in two sides of the rotary cavity (2), lifting frames (12) matched with the lifting grooves are movably connected inside the lifting grooves (6), elastic sealing elements are arranged between two sides of the top end face of each lifting frame (12) and the lifting grooves (6), and workpiece receiving and conveying components are arranged between the lifting frames (12) and the rotary cavity (2).

2. A heat treatment device for precision bearings according to claim 1, characterized in that said workpiece transfer assembly comprises in particular: rotating disc (7) of rotating connection in rotating cavity (2), rotating motor (11) are inlayed on rotating cavity (2) inner wall of rotating disc (7) one side, and rotating motor (11) output shaft and rotating disc (7) side center fixed connection, four evenly distributed's guide pillar (14) are fixedly connected with to the lateral surface of rotating disc (7), and the tip position of guide pillar (14) is equipped with anchor clamps mounting panel (17), one side swing joint of anchor clamps mounting panel (17) has annular fly leaf (15), and annular fly leaf (15) can follow guide pillar (14) through the first driving piece that sets up and remove, one side fixedly connected with high temperature resistant air chuck (18) of annular fly leaf (15) are kept away from to anchor clamps mounting panel (17), and a plurality of evenly distributed's arc connecting plates (16) of fixedly connected with between annular fly leaf (15) and anchor clamps mounting panel (17).

3. A heat treatment device for precision bearings according to claim 2, characterized in that said first driving member comprises in particular: offer drive chamber (22) inside rotary disk (7), drive chamber (22) inside intermediate position fixedly connected with baffle (23), and baffle (23) one side fixedly connected with driving motor (24), driving motor (24) output shaft runs through baffle (23) and fixedly connected with gear wheel (25), spacing spout (19) have been offered on guide pillar (14) lateral surface of anchor clamps mounting panel (17) one side, and spacing spout (19) inside rotation is connected with first lead screw (20), the one end of first lead screw (20) runs through guide pillar (14) and rotary disk (7) and extends to in drive chamber (22), and first lead screw (20) end fixedly connected with in drive chamber (22) with gear wheel (25) engaged drive gear (26), the position fixedly connected with spacing slider (21) of the medial surface of annular fly leaf (15) corresponding spacing spout (19), and spacing slider (21) swing joint is inside spacing slider (19), first lead screw (20) run through spacing slider (21) and with its threaded connection.

4. A heat treatment device for precision bearings according to claim 1, characterized in that said elastic seal comprises in particular: the arc-shaped elastic plate (32) is fixed on the edge of the top end face of the lifting frame (12), a sealing strip (33) is fixedly connected to the outer side face of the arc-shaped elastic plate (32) close to the end portion, the outer side face of the sealing strip (33) abuts against the inner wall of the lifting groove (6), a torsion spring (34) is arranged on the inner side face of the arc-shaped elastic plate (32), and two ends of the torsion spring (34) are fixedly connected with the inner side face of the arc-shaped elastic plate (32) and the top end of the outer side face of the lifting frame (12) respectively.

5. The heat treatment device for precision bearings according to claim 1, characterized in that said workpiece receiving and feeding assembly comprises in particular: offer circular slot (27) parallel from top to bottom in crane (12) side, the equal fixedly connected with of inner wall both sides border position of circular slot (27) is spacing gluey ring (28), and the top flexible chamber (29) have been seted up to circular slot (27) one side, flexible chamber (2) inner wall correspond flexible chamber (29) the position seted up with circular slot (27) assorted guide mouth, one flexible chamber (29) are embedded to be equipped with push cylinder (30), and push cylinder (30) output shaft fixedly connected with push plate (31), another the inside of flexible chamber (29) is inlayed and is had recovery cylinder (35), and the output shaft fixedly connected with recovery plate (36) of recovery cylinder (35), one side center fixedly connected with locating plate (37) of recovery plate (36), the both sides of crane (12) are equipped with the second driving piece and are used for driving crane (12) and go up and down.

6. The heat treatment device for precision bearings according to claim 5, characterized in that said second driving member comprises in particular: the lifting seat (41) is fixed at the bottom ends of two side surfaces of the lifting frame (12), the positions of the inner walls of two sides of the lifting groove (6) corresponding to the lifting seat (41) are provided with strip grooves (38), the lifting seat (41) is movably connected inside the strip grooves (38) and is matched with the strip grooves, the second lead screw (40) is rotatably connected inside the strip grooves (38), the second lead screw (40) penetrates through the lifting seat (41) and is in threaded connection with the second lead screw, a stepping motor (39) is embedded below the second lead screw (40), and an output shaft of the stepping motor (39) is fixedly connected with the bottom ends of the corresponding second lead screws (40).

7. The heat treatment device for precision bearings according to claim 1, wherein the cleaning mechanism comprises: the cleaning device comprises a plurality of cleaning plates (42) which are horizontally arranged in parallel, bristles (43) are fixedly connected to the top ends of the cleaning plates (42), shaft rods (44) are fixedly connected to the two side faces of the cleaning plates (42), the shaft rods (44) are rotationally connected with the inner walls of the cleaning cavities (5), belt pulleys (45) are fixedly connected to the outer side faces of the shaft rods (44), two adjacent belt pulleys (45) are in transmission connection through transmission belts (46), a transmission motor (47) is embedded on the inner wall of one side of each belt pulley (45) of the cleaning cavity (5), and an output shaft of the transmission motor (47) is fixedly connected with the corresponding shaft rod (44).

8. The heat treatment device for the precision bearing according to claim 1, wherein the heat treatment cavity (3) is formed at the top of the rotating cavity (2), and a heating pipe (4) is fixedly connected inside the heat treatment cavity (3).

9. The heat treatment device for the precision bearing according to claim 1, wherein a filter cavity (8) communicated with the cleaning cavity (5) is formed below the cleaning cavity, a filter screen (9) is fixedly connected to the inside of the filter cavity (8), a vacuumizing hole (10) communicated with the filter cavity (8) is formed on the outer side surface of the machine body (1), and the vacuumizing hole (10) is connected with external vacuumizing equipment.