CN111575447A

CN111575447A - Tooth surface quenching device for chain wheel

Info

Publication number: CN111575447A
Application number: CN202010644054.7A
Authority: CN
Inventors: 吴舜杰; 郑月参; 蔡华; 张新华
Original assignee: Zhongshan Shunren Machinery Manufacturing Co ltd; Shengzhou Special Sprocket Wheel Co ltd
Current assignee: Zhongshan Shunren Machinery Manufacturing Co ltd; Shengzhou Special Sprocket Wheel Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2020-08-25
Anticipated expiration: 2040-07-07
Also published as: CN111575447B

Abstract

The invention discloses a tooth surface quenching device for a chain wheel, which is characterized in that: including supporting mechanism, set up in the guide ring mechanism of supporting mechanism periphery, set up a plurality of fixed establishment on guide ring mechanism, set up the positioning mechanism in the guide ring mechanism outside, supporting mechanism includes the base, and base upper portion is connected with the support column, and support column upper portion is connected with a supporting bench, and supporting bench upper portion is seted up flutedly, is provided with the fixed station in the recess, and the fixed station rotates with a supporting bench and links to each other, and fixed station upper portion intermediate position is connected with the center post. The invention can position the position of the chain wheel, so that the tooth surface of the chain wheel is quenched in a replaceable manner, and the performance of the chain wheel is improved.

Description

Tooth surface quenching device for chain wheel

Technical Field

The invention relates to the technical field of sprocket machining, in particular to a tooth surface quenching device for a sprocket.

Background

The sprocket is a common transmission part, has important application in mechanical equipment, is complex in production and manufacturing process, and needs a plurality of steps such as casting blank making, normalizing, turning, hobbing and gear shaping, gear shaving, heat treatment, grinding and finishing and the like. During treatment, after quenching on one side of the tooth surface is finished, the chain wheel needs to be manually turned over and then fixed again, so that the other side of the tooth surface is continuously quenched. However, after the chain wheel is turned over, the position of the chain wheel is changed, the chain wheel needs to be manually positioned again to be fixed, and the operation is very complicated.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a tooth surface quenching device for a chain wheel.

In order to achieve the purpose, the invention provides the following technical scheme to realize the purpose:

a tooth surface quenching device for a chain wheel comprises a supporting mechanism, a guide ring mechanism arranged on the periphery of the supporting mechanism, a plurality of fixing mechanisms arranged on the guide ring mechanism, a positioning mechanism arranged on the outer side of the guide ring mechanism and a quenching mechanism; the supporting mechanism comprises a base, a supporting column is connected to the upper portion of the base, a supporting table is connected to the upper portion of the supporting column, a groove is formed in the upper portion of the supporting table, a fixing table is arranged in the groove and is rotatably connected with the supporting table, and a central column is connected to the middle of the upper portion of the fixing table; a ball bearing is arranged between the side surface of the fixed platform and the side wall of the groove of the supporting platform, and a thrust bearing is arranged between the bottom of the fixed platform and the bottom of the groove; the guide ring mechanism comprises a guide ring, the lower part of the guide ring is connected with a plurality of support rods, and the upper part of the guide ring is provided with scale marks; the fixing mechanism comprises a guide sleeve sleeved on the guide ring, the lower part of the guide sleeve is provided with a notch for the support rod to pass through, so that the guide sleeve can not collide with the support rod when moving along the guide ring, the guide sleeve is provided with a fixed pin which is inserted into the guide ring after passing through the guide sleeve, the inner side of the guide sleeve is connected with a connecting beam, the other end of the connecting beam is connected with a sleeve rotatably arranged on the support column, the upper part of the guide sleeve is provided with a support plate, the upper part of the support plate is provided with a tooth socket fixing mechanism, one side of the support plate close to the outer side is provided with an observation window, the middle position of the observation window is provided with a pointer, the support plate is provided with two adjusting rails along the length direction thereof, the tooth socket fixing mechanism comprises an adjusting plate, the adjusting plate is arranged on the adjusting, a piston rod of the first hydraulic cylinder is connected with a fixing piece; the positioning mechanism comprises an upright post and a rotating plate which is rotatably arranged on the upper part of the upright post, a driven sprocket is fixedly connected on the upper part of the rotating plate, a motor base is arranged on the side surface of the upright post, a driving motor is arranged on the upper part of the motor base, the output end of the driving motor penetrates through the rotating plate and is connected with a driving sprocket, the driving sprocket is meshed with the driven sprocket, the upper part of the rotating plate is provided with a groove, an adjusting gear is arranged in the groove, a thrust bearing is arranged between the bottom of the adjusting gear and the bottom of the groove, a second hydraulic cylinder is, a fixing frame is connected behind the rotating plate, a positioning plate is fixedly connected to the lower portion of the fixing frame, two sliding blocks are arranged on the positioning plate in a sliding mode, a third hydraulic cylinder is fixedly connected to the outer side of each sliding block, a support frame is connected to a piston rod of each third hydraulic cylinder, a positioning rod assembly is fixedly connected to the lower portion of each support frame, a through hole is formed in each positioning rod, and the lower portion of each positioning rod assembly penetrates; the quenching mechanism comprises a base, a conveying rail is connected to the upper portion of the base, a conveying frame is arranged on the upper portion of the conveying rail, a fourth hydraulic cylinder is fixedly mounted on the conveying frame, a supporting disk is connected to the lower end of a piston rod of the fourth hydraulic cylinder, a ring rail is arranged below the supporting disk, a plurality of connecting strips are connected between the supporting disk and the ring rail, a mounting seat is arranged below the ring rail, a laser quenching device is arranged on the lower portion of the mounting seat, a plurality of servo motors are mounted on the upper portion of the mounting seat, idler wheels are connected to the output ends of.

Preferably, the locating lever subassembly includes the first locating lever that the top links to each other with the support frame, the sliding tray has been seted up to first locating lever lower part, the second locating lever has been inserted to first locating lever lower part, second locating lever top is connected with first baffle, first baffle is located the sliding tray bottom, first baffle upper portion is connected with the trigger lever, be equipped with first spring in the sliding tray, the second spring, the second baffle, first spring is located between first baffle and the second baffle, the second spring is located between sliding tray top and the second baffle, the second baffle is the ring form, middle breach supplies the trigger lever to pass, the required power of compression second spring is greater than the power of compressing first spring, sliding tray upper portion diameter reduces, the sliding tray top is equipped with micro-gap switch, micro-gap switch's contact is located the sliding tray.

Preferably, a positioning block is arranged in the groove of the rotating plate, the inner end of the positioning block can be clamped into a tooth groove of the adjusting gear, the upper portion of the positioning block is connected with a connecting rod, the connecting rod penetrates through the rotating plate upwards, the top end of the rear portion of the connecting rod is connected with a button, a third spring is sleeved outside the connecting rod, and the third spring is located between the button and the rotating plate.

Preferably, the upper part of the rotating plate is rotatably provided with a limiting rod, the inner side of the limiting rod is connected with a limiting block, the position, located on the outer side of the limiting rod, of the upper part of the rotating plate is connected with a supporting block, and a fourth spring is connected between the supporting block and the limiting rod.

Preferably, the inner side of the fixing member is provided with a projection which engages with the teeth of the sprocket.

Preferably, the locating plate is provided with a guide groove, the inner side of the sliding block is provided with a guide post, and the guide post is inserted into the guide groove.

Preferably, the supporting column is provided with a plurality of baffle rings, the sleeve is positioned between two adjacent baffle rings, and thrust bearings are arranged between the sleeve and the baffle rings on the upper part and the lower part of the sleeve.

The invention has the beneficial effects that: the two positioning rod assemblies move downwards to stir the chain wheel to rotate so as to fix the position of the chain wheel, and then the chain wheel is quickly fixed through the fixing mechanism, so that the positioning speed of the chain wheel is accelerated, the time of a turnover step in the gear quenching process is greatly shortened, and the overall quenching speed is accelerated; and meanwhile, the fixing mechanism cannot collide with the teeth of the chain wheel to cause damage during positioning.

Drawings

FIG. 1 is a schematic structural view of a tooth surface quenching apparatus for a sprocket according to the present invention;

FIG. 2 is an elevational view of the tooth surface quench for the sprocket of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is an enlarged schematic view at B of FIG. 2;

FIG. 5 is a partial schematic view of a quenching mechanism according to the invention;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

FIG. 7 is a schematic structural view of the tooth space fixing mechanism of the present invention;

FIG. 8 is a schematic structural view of a positioning mechanism according to the present invention;

FIG. 9 is an enlarged schematic view at A of FIG. 5;

FIG. 10 is a first schematic view of a positioning plate according to the present invention;

FIG. 11 is a second schematic view of a positioning plate according to the present invention;

fig. 12 is an enlarged schematic view at a in fig. 8.

Reference numerals: 1. a support mechanism; 2. a guide ring mechanism; 3. a fixing mechanism; 4. a positioning mechanism; 5. a sprocket; 6. a quenching mechanism; 11. a base; 12. a support pillar; 121. a baffle ring; 13. a support table; 14. a fixed table; 141. a central column; 21. a support bar; 22. a guide ring; 31. a guide sleeve; 32. a connecting beam; 33. a fixing pin; 34. a support plate; 341. an observation window; 342. a pointer; 343. adjusting the rail; 35. a tooth socket fixing mechanism; 351. an adjusting plate; 352. a vertical plate; 353. a first hydraulic cylinder; 354. a fixing member; 36. a sleeve; 41. a column; 42. a rotating plate; 43. a motor base; 44. a drive motor; 45. a driven sprocket; 46. a drive sprocket; 47. an adjusting gear; 48. a second hydraulic cylinder; 49. a fixed mount; 410. positioning a plate; 4101. a guide groove; 4102. a through hole; 411. a third hydraulic cylinder; 412. a support frame; 413. a positioning rod assembly; 414. a slider; 4141. a guide post; 4131. a first positioning rod; 4132. a second positioning rod; 4133. a sliding groove; 4134. a first baffle plate; 4135. a second baffle; 4136. a first spring; 4137. a second spring; 4138. a trigger lever; 4139. a microswitch; 421. positioning blocks; 422. a connecting rod; 423. a button; 424. a third spring; 425. a limiting rod; 426. a limiting block; 427. a support block; 428. a fourth spring; 61. a base; 62. a conveying rail; 63. a carriage; 64. a fourth hydraulic cylinder; 65. a support disc; 66. a connecting strip; 67. a circular rail; 68. a laser quencher; 69. a mounting seat; 610. a roller; 611. a servo motor.

Detailed Description

Embodiments of the present invention are described in detail below with reference to fig. 1-12.

The utility model provides a flank of tooth guenching unit for sprocket, including supporting mechanism 1, set up in the guide ring mechanism 2 of supporting mechanism 1 periphery, set up a plurality of fixed establishment 3 on guide ring mechanism 2, the positioning mechanism 4 of setting in the guide ring mechanism 2 outside, quenching mechanism 6, supporting mechanism 1 includes

base

11, 11 upper portions of base are connected with

support column

12, 12 upper portions of support column are connected with brace table 13, brace table 13 upper portion is seted up flutedly, be provided with fixed station 14 in the recess, fixed station 14 rotates with brace table 13 and links to each other, 14 upper portion intermediate positions of fixed station are connected with center post 141, be equipped with ball bearing between the recess lateral wall of fixed station 14 side and brace table 13, be provided with thrust bearing between 14 bottoms of fixed station and the recess. The central post 141 and the fixed table 14 are detachably connected, and the central posts 141 with different diameters can be replaced according to the size of the central hole of the chain wheel 5.

The guide ring mechanism 2 comprises a guide ring 22, the lower part of the guide ring 22 is connected with a plurality of support rods 21, and the upper part of the guide ring 22 is provided with scale marks.

The fixing mechanism 3 comprises a guide sleeve 31 sleeved on the guide ring 22, the lower part of the guide sleeve 31 is provided with a notch for the support rod 21 to pass through, so that the guide sleeve 31 can not collide with the support rod 21 when moving along the guide ring 22, the guide sleeve 31 is provided with a fixing pin 33, the fixing pin 33 passes through the guide sleeve 31 and then is inserted into the guide ring 22, the inner side of the guide sleeve 31 is connected with a connecting beam 32, the other end of the connecting beam 32 is connected with a sleeve 36 rotatably arranged on the support column 12, the upper part of the guide sleeve 31 is provided with a support plate 34, the upper part of the support plate 34 is provided with a tooth socket fixing mechanism 35, one side of the support plate 34, which is close to the outside, is provided with an observation window 341, the middle position of the observation window 341 is provided with a pointer 342, the support plate 34 is provided with two adjusting rails 343, the inner end of the fixing bolt props against the adjusting rail 343, the upper part of the adjusting plate 351 is connected with a vertical plate 352, a first hydraulic cylinder 353 is fixedly arranged on the inner side of the vertical plate 352, and a piston rod of the first hydraulic cylinder 353 is connected with a fixing part 354; through the setting of observation window 341 and pointer 342, cooperation guide ring 22 is last scale mark, can fix a position the angle that regulating plate 351 is located fast, is convenient for change regulating plate 351 to corresponding position.

The positioning mechanism 4 comprises a vertical column 41 and a rotating plate 42 rotatably arranged on the upper part of the vertical column 41, the upper part of the rotating plate 42 is fixedly connected with a driven sprocket 45, the side surface of the vertical column 41 is provided with a motor base 43, the upper part of the motor base 43 is provided with a driving motor 44, the output end of the driving motor 44 passes through the rotating plate 42 and then is connected with a driving sprocket 46, the driving sprocket 46 is meshed with the driven sprocket 45, the upper part of the rotating plate 42 is provided with a groove, an adjusting gear 47 is arranged in the groove, a thrust bearing is arranged between the bottom of the adjusting gear 47 and the bottom of the groove, the upper part of the adjusting gear 47 is provided with a second hydraulic cylinder 48, the piston rod of the second hydraulic cylinder 48 passes through the adjusting gear 47 and the rotating plate 42 and then is connected with a fixed frame 49, the lower part of the fixed frame 49 is, the lower portion of the supporting frame 412 is fixedly connected with a positioning rod assembly 413, a through hole 4102 is formed in the positioning rod 410, and the lower portion of the positioning rod assembly 413 passes through the through hole 4102. The positioning plate 410 is an arc-shaped plate, and the complete circle thereof is concentric with the sprocket 5.

The positioning rod assembly 413 comprises a first positioning rod 4131 with a top end connected with the supporting frame 412, a sliding groove 4133 is formed at the lower part of the first positioning rod 4131, a second positioning rod 4132 is inserted into the lower part of the first positioning rod 4131, a first baffle 4134 is connected to the top of the second positioning rod 4132, the first baffle 4134 is located at the bottom of the sliding groove 4133, a trigger lever 4138 is connected to the upper part of the first baffle 4134, a first spring 4136 and a second spring 4137 are arranged in the sliding groove 4133, a second baffle 4135, a first spring 4136 between the first baffle 4134 and the second baffle 4135, a second spring 4137 between the top of the sliding groove 4133 and the second baffle 4135, the second baffle 4135 is circular, the middle gap for the trigger lever 4138 to pass through, the force required for compressing the second spring 4137 is larger than the force for compressing the first spring 4136, the diameter of the upper part of the sliding groove 4133 is reduced, a microswitch is arranged at the top of the sliding groove 4133, and the contact of the microswitch is positioned in the sliding groove 4133. The microswitch is in signal connection with the third hydraulic cylinder 411.

Quenching mechanism 6 includes base 61, base 61 upper portion is connected with delivery rail 62, delivery rail 62 upper portion is equipped with carriage 63, fixed mounting has fourth pneumatic cylinder 64 on carriage 63, the piston rod lower extreme of fourth pneumatic cylinder 64 is connected with supporting disk 65, supporting disk 65 below is provided with circular rail 67, be connected with a plurality of connecting strips 66 between supporting disk 65 and the circular rail 67, circular rail 65 below is equipped with mount pad 69, mount pad 69 lower part is equipped with laser quenching ware 68, a plurality of servo motor 611 are installed on mount pad 69 upper portion, the output of servo motor 611 is connected with gyro wheel 610, gyro wheel 610 cooperatees with circular rail 67's track. The height of the conveying rail 62 is higher than the highest point of the positioning mechanism 4 so as not to affect the rotation of the rotating plate 42.

A positioning block 421 is arranged in the groove of the rotating plate 42, the inner end of the positioning block 421 can be clamped into the tooth groove of the adjusting gear 47, the upper part of the positioning block 421 is connected with a connecting rod 422, the connecting rod 422 upwards penetrates through the rotating plate 42 and is connected with a button 423 at the rear top end, a third spring 424 is sleeved outside the connecting rod 422, and the third spring 424 is positioned between the button 423 and the rotating plate 42.

A limiting rod 425 is rotatably arranged at the upper part of the rotating plate 42, a limiting block 426 is connected at the inner side of the limiting rod 425, a supporting block 427 is connected at the position, which is positioned at the outer side of the limiting rod 425, at the upper part of the rotating plate 42, and a fourth spring 428 is connected between the supporting block 427 and the limiting rod 425.

The inner side of the fixing piece 354 is provided with a bulge which is clamped with the teeth of the chain wheel 5, the height of the fixing piece 354 is smaller than half of the thickness of the chain wheel 5, and the fixing piece 354 can expose at least half of the tooth surface of the chain wheel 5 when fixing the chain wheel 5, so that the laser quenching instrument 68 can quench more than half of the tooth surface once, and the non-quenched area can not be missed on the tooth surface after twice quenching.

The positioning plate 410 is provided with a guide groove 4101, the inner side of the sliding block 414 is provided with a guide post 4141, and the guide post 4141 is inserted into the guide groove 4101.

The support column 12 is provided with a plurality of baffle rings 121, the sleeve 36 is positioned between two adjacent baffle rings 121, and thrust bearings are arranged between the sleeve 36 and the baffle rings 121 on the upper and lower parts of the sleeve 36.

The fixing mechanisms 3 are provided with two groups, the two groups are respectively arranged correspondingly according to the positions of the two positioning rod assemblies 413, and the corresponding fixing mechanisms 3 are started according to the positioning rod assemblies 413 clamped into tooth grooves of the chain wheels 5, so that the fixing of the chain wheels 5 can be finished without adjusting the positions of the fixing mechanisms 3.

In specific implementation, the chain wheel 5 is placed on the fixed table 14, and the central column 14 penetrates through a central hole of the chain wheel 5. The driving motor 44 drives the driving sprocket 46 to rotate, and the driving sprocket 46 drives the rotating plate 42 to rotate through the driven sprocket 45. The button 423 is pressed, the connecting rod 422 drives the positioning block 421 to move downwards, so that the positioning block 421 is separated from the tooth slot of the adjusting gear 47, the second hydraulic cylinder 48 is rotated to adjust the position of the positioning plate 410, and the rotating block 42 and the second hydraulic cylinder 48 rotate and are matched with each other to adjust the position of the positioning plate 410 so that the circle center of the positioning plate and the circle center of the chain wheel 5 are located on the same vertical line. The button 423 is released, the positioning block 421 moves upwards to be clamped into the tooth grooves of the adjusting gear 47 again to fix the adjusting gear. The two positioning rod assemblies 413 on the positioning plate 410 are pre-positioned before first use, so that when one of the positioning rod assemblies is aligned with the teeth of the sprocket 5, the other positioning rod assembly is aligned with the tooth socket of the sprocket 5, and the angles of the two positioning rod assemblies 413 are recorded. When the positioning component is used, one of the third hydraulic cylinders 411 drives the positioning rod component 413 to descend, if the lower end of the second positioning rod 4132 is aligned to the teeth of the chain wheel 5, the second positioning rod 4132 is pressed to move upwards, the first spring 4136 is compressed to be contracted firstly, the second spring 4137 is driven to be compressed together through the second baffle 4135 after the first spring 4136 is compressed to a certain degree, finally the trigger lever 4138 is made to contact with the contact of the microswitch 4139, so that a signal is sent out, the third hydraulic cylinder 411 stops the movement of the piston rod and resets the piston rod, meanwhile, the other third hydraulic cylinder 411 drives the positioning rod component 413 to descend, at the moment, the lower end of the second positioning rod 4132 of the positioning component 413 is aligned to the tooth groove of the chain wheel 5, and the first positioning rod 4131 moves downwards to drive the chain wheel 5 to rotate and finally clamp the tooth groove of the chain wheel 5. The worker adjusts each fixing mechanism 3 to a corresponding angle according to the angle of the positioning rod assembly 413 which is inserted into the tooth socket, in combination with the parameters of the sprocket 5. The piston rod of the first hydraulic cylinder 353 drives the fixing piece 354 to move inwards, so that the protrusion on the inner side of the fixing piece 354 is clamped into the tooth groove of the chain wheel 5, and the positioning and fixing of the chain wheel 5 are completed. The positioning means 4 is now released from the return position from the sprocket wheel 5.

The conveying rail 62 drives the conveying frame 63 to move, so that the guide ring 65 reaches above the chain wheel 5. The piston rod of the fourth hydraulic cylinder 64 drives the support plate 65 to descend, so that the guide ring 65 drives the laser quenching device 68 to move downwards to the side face of the chain wheel 5, and the laser quenching device 68 starts to quench the tooth face of the chain wheel 5. The servo motor 611 drives the roller 610 to rotate, so as to drive the mounting seat 69 to move along the circular track, so that the laser quenching device 68 makes circular motion, and complete processing of one side of the tooth surface of the sprocket 5 is completed.

After one side of the tooth surface is quenched, the quenching mechanism 6 is reset, the fixing mechanism 3 is also reset, and the chain wheel 5 is turned over manually.

The positioning mechanism 4, the fixing mechanism 3 and the quenching mechanism 6 are repeatedly operated, and after the chain wheel 5 is positioned and fixed, the quenching treatment is carried out on the other side of the tooth surface, and then the quenching treatment on the whole tooth surface of the chain wheel 5 is completed.

If the lower end of the second positioning rod 4132 is close to the tooth edge, the second positioning rod 4132 is also pressed to drive the first spring 4136 to compress, and the second positioning rod 4132 moves downward to toggle the sprocket 5 to rotate so that the second positioning rod 4132 reaches the tooth space. In this process, the force applied to the second positioning rod 4132 is not enough to drive the second spring 4137 to be compressed, so that the trigger lever 4138 does not touch the contact of the micro switch 4139 and the positioning rod assembly 413 is ensured to correctly position the sprocket.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A tooth surface quenching device for a chain wheel is characterized in that: comprises a supporting mechanism (1), a guide ring mechanism (2) arranged on the periphery of the supporting mechanism (1), a plurality of fixing mechanisms (3) arranged on the guide ring mechanism (2), a positioning mechanism (4) arranged on the outer side of the guide ring mechanism (2), and a quenching mechanism (6);

the supporting mechanism (1) comprises a base (11), a supporting column (12) is connected to the upper portion of the base (11), a supporting table (13) is connected to the upper portion of the supporting column (12), a groove is formed in the upper portion of the supporting table (13), a fixing table (14) is arranged in the groove, the fixing table (14) is rotatably connected with the supporting table (13), and a central column (141) is connected to the middle position of the upper portion of the fixing table (14);

the guide ring mechanism (2) comprises a guide ring (22), the lower part of the guide ring (22) is connected with a plurality of support rods (21), and the upper part of the guide ring (22) is provided with scale marks;

the fixing mechanism (3) comprises a guide sleeve (31) sleeved on a guide ring (22), a notch for the support rod (21) to pass through is formed in the lower portion of the guide sleeve (31), a fixing pin (33) is arranged on the guide sleeve (31), the fixing pin (33) penetrates through the guide sleeve (31) and then is inserted into the guide ring (22), a connecting beam (32) is connected to the inner side of the guide sleeve (31), the other end of the connecting beam (32) is connected with a sleeve (36) rotatably arranged on a support column (12), a support plate (34) is installed on the upper portion of the guide sleeve (31), a tooth socket fixing mechanism (35) is arranged on the upper portion of the support plate (34), an observation window (341) is formed in one outer side of the support plate (34), a pointer (342) is arranged in the middle of the observation window (341), and two adjusting rails (343) are formed in the support plate (34), the tooth socket fixing mechanism (35) comprises an adjusting plate (351), the adjusting plate (351) is installed on an adjusting rail (343), a fixing bolt is screwed into the side surface of the adjusting plate (351), the inner end of the fixing bolt props against the adjusting rail (343), a vertical plate (352) is connected to the upper portion of the adjusting plate (351), a first hydraulic cylinder (353) is fixedly arranged on the inner side of the vertical plate (352), and a fixing piece (354) is connected to a piston rod of the first hydraulic cylinder (353);

positioning mechanism (4) include stand (41) and rotate and set up rotor plate (42) on stand (41) upper portion, rotor plate (42) upper portion rigid coupling has driven sprocket (45), stand (41) side is equipped with motor cabinet (43), motor cabinet (43) upper portion is equipped with driving motor (44), the output of driving motor (44) passes rotor plate (42) back and is connected with drive sprocket (46), drive sprocket (46) and driven sprocket (45) mesh mutually, rotor plate (42) upper portion fluting, the inslot is equipped with adjusting gear (47), be equipped with thrust bearing between adjusting gear (47) bottom and the tank bottom, adjusting gear (47) upper portion is equipped with second pneumatic cylinder (48), the piston rod of second pneumatic cylinder (48) passes adjusting gear (47), rotor plate (42) back and is connected with mount (49), a positioning plate (410) is fixedly connected to the lower portion of the fixing frame (49), two sliding blocks (414) are slidably arranged on the positioning plate (410), a third hydraulic cylinder (411) is fixedly connected to the outer side of each sliding block (414), a supporting frame (412) is connected to a piston rod of each third hydraulic cylinder (411), a positioning rod assembly (413) is fixedly connected to the lower portion of each supporting frame (412), a through hole (4102) is formed in each positioning rod (410), and the lower portion of each positioning rod assembly (413) penetrates through the corresponding through hole (4102);

quenching mechanism (6) are including base (61), base (61) upper portion is connected with delivery rail (62), delivery rail (62) upper portion is equipped with carriage (63), fixed mounting has fourth pneumatic cylinder (64) on carriage (63), the piston rod lower extreme of fourth pneumatic cylinder (64) is connected with supporting disk (65), supporting disk (65) below is provided with circular rail (67), be connected with a plurality of connecting strips (66) between supporting disk (65) and circular rail (67), circular rail (65) below is equipped with mount pad (69), mount pad (69) lower part is equipped with laser quenching ware (68), a plurality of servo motor (611) are installed on mount pad (69) upper portion, the output of servo motor (611) is connected with gyro wheel (610), gyro wheel (610) cooperate with the track of circular rail (67).

2. The tooth surface quenching device for a sprocket as claimed in claim 1, wherein: the positioning rod assembly (413) comprises a first positioning rod (4131) the top end of which is connected with the support frame (412), a sliding groove (4133) is formed in the lower portion of the first positioning rod (4131), a second positioning rod (4132) is inserted into the lower portion of the first positioning rod (4131), a first baffle plate (4134) is connected to the top of the second positioning rod (4132), the first baffle plate (4134) is located at the bottom of the sliding groove (4133), a trigger rod (4138) is connected to the upper portion of the first baffle plate (4134), a first spring (4136), a second spring (4137) and a second baffle plate (4135) are arranged in the sliding groove (4133), the first spring (4136) is located between the first baffle plate (4134) and the second baffle plate (4135), the second spring (4137) is located between the top of the sliding groove (4133) and the second baffle plate (4135), the diameter of the upper portion of the sliding groove (4133) is reduced, and a microswitch is arranged at the top of the sliding groove (4133), the contact of the micro switch is located in a sliding groove (4133).

3. The tooth surface quenching device for a sprocket as claimed in claim 1, wherein: the inslot of rotor plate (42) is equipped with locating piece (421), the tooth's socket of adjusting gear (47) can be gone into to locating piece (421) inner, locating piece (421) upper portion is connected with connecting rod (422), connecting rod (422) upwards run through rotor plate (42) back top and be connected with button (423), connecting rod (422) overcoat is equipped with third spring (424), third spring (424) are located between button (423) and rotor plate (42).

4. The tooth surface quenching device for a sprocket as claimed in claim 1, wherein: the positioning plate (410) is provided with a guide groove (4101), the inner side of the sliding block (414) is provided with a guide post (4141), and the guide post (4141) is inserted into the guide groove (4101).

5. The tooth surface quenching device for a sprocket as claimed in claim 1, wherein: the support column (12) is provided with a plurality of baffle rings (121), the sleeve (36) is positioned between two adjacent baffle rings (121), and thrust bearings are arranged between the sleeve (36) and the baffle rings (121) on the upper portion and the lower portion of the sleeve.