CN211890241U

CN211890241U - Grinding device for gear machining

Info

Publication number: CN211890241U
Application number: CN202020319846.2U
Authority: CN
Inventors: 李文华
Original assignee: Chongqing Junguan Machinery Manufacturing Co ltd
Current assignee: Chongqing Junguan Machinery Manufacturing Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-11-10
Anticipated expiration: 2030-03-16

Abstract

The utility model relates to a gear grinding device technical field just discloses a grinding device for gear machining, including the processing platform, the left side fixed mounting of processing bench portion has first rotating electrical machines, the top fixedly connected with of processing platform is located the first slide rail on first rotating electrical machines right side, the top movable mounting of processing platform has first movable block, the bottom fixedly connected with and the first slide rail sliding connection's of first movable block first slider, the top fixedly connected with of processing platform is located the fixed plate on first slide rail right side. This grinding device for gear machining through the gear cover that will process on fixed storehouse, is supported whole gear by the backing ring, then starts second rotating electrical machines, makes the loop bar rotate, again through being provided with second slider and second slide rail sliding connection to the position of second threaded rod has been restricted, and then makes second threaded rod accessible and first thread groove threaded connection and rebound.

Description

Grinding device for gear machining

Technical Field

The utility model relates to a gear grinding device technical field specifically is a grinding device for gear machining.

Background

The gear is a mechanical element with a rim on which the gear is continuously meshed to transmit motion and power, the gear is applied in transmission for a long time, at the end of the 19 th century, the principle of generating a gear cutting method and the successive appearance of a special machine tool and a cutter for cutting the gear by using the principle are realized, and the running stability of the gear is emphasized along with the development of production.

The gear need polish the operation to the gear after production, and gear grinding device on the present market is when polishing the gear, and is comparatively troublesome to the fixed of gear, and unable quick carries out the centre gripping to the gear fixed, need adopt different grinding device to the gear of equidimension not moreover, and grinding device changes the step complicacy, and then has reduced staff's work efficiency, so provides a grinding device for gear machining in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a grinding device for gear machining possesses quick centre gripping and the not advantage of equidimension gear of centre gripping, has solved gear grinding device on the present market when polishing the gear, and is comparatively troublesome to the fixed of gear, and unable quick gear carries out the centre gripping fixed, need adopt different grinding device to the gear of equidimension not in addition, and grinding device changes the step complicacy, and then has reduced staff's work efficiency's problem.

(II) technical scheme

For the purpose that realizes above-mentioned quick centre gripping and not equidimension gear of centre gripping, the utility model provides a following technical scheme: a grinding device for gear machining comprises a machining table, wherein a first rotating motor is fixedly mounted on the left side of the top of the machining table, a first sliding rail is fixedly connected to the top of the machining table and located on the right side of the first rotating motor, a first movable block is movably mounted on the top of the machining table, a first sliding block in sliding connection with the first sliding rail is fixedly connected to the bottom of the first movable block, a fixed plate is fixedly connected to the top of the machining table and located on the right side of the first sliding rail, a first threaded rod is fixedly connected to the output shaft of the first rotating motor, one end of the output shaft of the first rotating motor penetrates through and extends to the right side of the first movable block and is movably connected to the left side of the fixed plate, a first driving motor is fixedly mounted on the top of the first movable block, a fixed bin is fixedly connected to the output shaft of the first driving motor, a support ring is fixedly connected to the, an adjusting mechanism is fixedly mounted on the left side of the supporting plate, a second driving motor is fixedly mounted on the left side of the adjusting mechanism, a polishing grinding wheel is fixedly connected to an output shaft of the second driving motor, a second rotating motor is fixedly mounted on the inner bottom wall of the fixed bin, a loop bar is fixedly connected to an output shaft of the second rotating motor, a second threaded rod with one end penetrating through and extending into the loop bar is movably mounted at the top of the loop bar, second slide rails are fixedly connected to the tops of the inner walls of the left side and the right side of the fixed bin, second slide blocks slidably connected with the second slide rails are fixedly connected to the tops of the left side and the right side of the second threaded rod, four metal bins are fixedly connected to the inner peripheral wall of the fixed bin, movable rods with one ends penetrating through and extending out of the fixed bin are movably mounted in the four metal bins, an extrusion rod with one end penetrating through and extending out of the metal bins is fixedly connected to one side of, the outside cover of movable rod is equipped with the spring, the periphery wall fixedly connected with quantity of second threaded rod is four and is located the extrusion piece of four extrusion stem bottoms respectively, one side movable mounting that the second threaded rod was kept away from to the movable rod has one end to run through and extend to the inside accommodate the lead screw of movable rod.

Preferably, the left side of the first movable block is provided with a first threaded through hole in threaded connection with the first threaded rod, and the support ring is parallel to the top of the processing table.

Preferably, the top of the loop bar is provided with a first thread groove in threaded connection with the second threaded rod, and one side of the extrusion rod, which is close to the second threaded rod, is arc-shaped.

Preferably, one side of the metal bin, which is close to the second threaded rod, is provided with a first through hole matched with the extrusion rod, and the extrusion rod is in a horizontal T shape.

Preferably, the shape of extrusion piece is a right triangle, the second through-hole with movable rod looks adaptation is seted up to the one side that the second threaded rod was kept away from in the metal storehouse, the third through-hole that quantity is four and respectively with four movable rod looks adaptations is seted up to the periphery wall in fixed storehouse.

Preferably, four the metal storehouse is located same horizontal plane and is circular equidistance and distributes, the second thread groove with accommodate the lead screw threaded connection is seted up to one side that the second threaded rod was kept away from to the movable rod.

Preferably, the adjusting mechanism comprises an adjusting bin, a third rotating motor, a third threaded rod, a third slide rail, a third slide block and a second movable block, the adjusting bin is fixedly connected to the left side of the supporting plate, the third rotating motor is fixedly mounted at the bottom of the adjusting bin to the left side of the supporting plate, the third threaded rod is fixedly connected to an output shaft of the third rotating motor, one end of the third threaded rod penetrates through and extends into the adjusting bin and is movably connected with the inner top wall of the adjusting bin, a second movable block is movably mounted at the outer side of the third threaded rod, one end of the second movable block penetrates through and extends to the left side of the adjusting bin, the third slide rail is fixedly connected to the inner wall at the right side of the adjusting bin, the third slide block is fixedly connected to the right side of the second movable block in a sliding manner with the third slide rail, a second threaded through hole in threaded connection with the third threaded rod is formed at the, the width of the rectangular through hole is the same as that of the second movable block, and the height of the rectangular through hole is half of that of the adjusting bin.

(III) advantageous effects

Compared with the prior art, the utility model provides a grinding device for gear machining possesses following beneficial effect:

1. the polishing device for gear processing is characterized in that a gear to be processed is sleeved on a fixed bin, the whole gear is supported by a support ring, then a second rotating motor is started to enable a sleeve rod to rotate, and a second sliding block and a second sliding rail are arranged to be in sliding connection, so that the position of a second threaded rod is limited, the second threaded rod can move upwards through being in threaded connection with a first threaded groove, an extrusion block is driven to move upwards, the extrusion block can extrude an extrusion rod, the extrusion rod further moves towards the inside of a metal bin, the movable rod is extruded towards the outside of the fixed bin, a spring is compressed at the same time, the movable rod drives an adjusting screw rod to move, the adjusting screw rod is further contacted with the inner peripheral wall of the gear and clamps and fixes the gear, when the gear needs to be disassembled after being processed, the second rotating motor can be adjusted to enable the sleeve rod to rotate reversely, make the second threaded rod remove downwards, and then make the extrusion piece no longer extrude the stripper bar, make the stripper bar get back to initial position through the tension of spring, whole process has realized quick installation and the dismantlement to the gear, has improved staff's work efficiency.

2. The grinding device for gear machining is characterized in that the adjusting screw rod is arranged, when the size of a machined gear is changed, the adjusting screw rod is rotated, the adjusting screw rod moves towards one side away from the fixed bin through being in threaded connection with the second thread groove, the adjusting screw rod can move to a length matched with the inner diameter of the gear, then the second rotating motor is started, the adjusting screw rod can be in contact with the inner peripheral wall of the gear and clamps and fixes the gear, the gears with different sizes can be clamped and fixed only by rotating the adjusting screw rod, the grinding device is more convenient and rapid, the machining efficiency of workers is improved, after the gear is clamped and fixed, the first rotating motor can be adjusted, the first threaded rod is rotated, the first sliding rail and the first sliding block are arranged and slidably connected, the position of the first movable block is limited, and the first movable block can move left and right through the threaded connection of the first threaded rod and the first threaded through hole, the first driving motor is adjusted in a matched mode, the position of the gear needing to be polished is adjustable, meanwhile, the third rotating motor can be started, the third threaded rod is made to rotate, the third sliding block is slidably connected with the third sliding rail, the position of the second movable block is limited, the second movable block can be movably connected with the second threaded through hole through threads through the third threaded rod and can move up and down, the height of the polishing grinding wheel can be adjusted, the first rotating motor and the first driving motor are matched to adjust the position of the gear, and the gear is polished more conveniently.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the fixing bin of the present invention;

fig. 3 is an enlarged schematic structural diagram of a in fig. 2 according to the present invention.

In the figure: the automatic grinding machine comprises a processing table 1, a first rotating motor 2, a first threaded rod 3, a fixed bin 4, a support ring 5, a first driving motor 6, a grinding wheel 7, a second driving motor 8, an adjusting mechanism 9, a supporting plate 10, a fixed plate 11, an extrusion block 12, a first sliding block 13, a first sliding rail 14, a first movable block 15, a second sliding rail 16, a second sliding block 17, a second threaded rod 18, a second rotating motor 19, a metal bin 20, an adjusting screw rod 21, a movable rod 22, a spring 23, an extrusion rod 24 and a loop rod 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a grinding device for gear machining includes a machining table 1, a first rotating motor 2 is fixedly installed on the left side of the top of the machining table 1, the type of the first rotating motor 2 may be 86CM35, a first slide rail 14 located on the right side of the first rotating motor 2 is fixedly connected to the top of the machining table 1, a first movable block 15 is movably installed on the top of the machining table 1, a first slide block 13 slidably connected to the first slide rail 14 is fixedly connected to the bottom of the first movable block 15, a fixed plate 11 located on the right side of the first slide rail 14 is fixedly connected to the top of the machining table 1, a first threaded rod 3 having one end penetrating and extending to the right side of the first movable block 15 and movably connected to the left side of the fixed plate 11 is fixedly connected to the output shaft of the first rotating motor 2, a first threaded through hole threadedly connected to the first threaded rod 3 is formed on the left side of the first movable block 15, a first driving motor 6 is fixedly installed on the top of the, the model of the first driving motor 6 can be Y160M-4, the output shaft of the first driving motor 6 is fixedly connected with a fixed bin 4, the peripheral wall of the fixed bin 4 is fixedly connected with a support ring 5, the support ring 5 is parallel to the top of the processing table 1, the right side of the top of the processing table 1 is fixedly connected with a support plate 10, the left side of the support plate 10 is fixedly provided with an adjusting mechanism 9, the adjusting mechanism 9 comprises an adjusting bin, a third rotating motor, a third threaded rod, a third slide rail, a third slide block and a second movable block, the left side of the support plate 10 is fixedly connected with the adjusting bin, the left side of the support plate 10 is fixedly provided with a third rotating motor positioned at the bottom of the adjusting bin, the model of the third rotating motor can be 86CM35, the output shaft of the third rotating motor is fixedly connected with a third threaded rod, one end of the third threaded rod penetrates through and extends into the adjusting bin and is movably connected with the inner top wall of the adjusting bin, a third slide rail is fixedly connected to the inner wall of the right side of the adjusting bin, a third slide block which is connected with the third slide rail in a sliding manner is fixedly connected to the right side of the second movable block, a second threaded through hole which is connected with a third threaded rod in a threaded manner is formed in the bottom of the second movable block, a rectangular through hole is formed in the left side of the adjusting bin, the width of the rectangular through hole is the same as that of the second movable block, the height of the rectangular through hole is half of that of the adjusting bin, a second driving motor 8 is fixedly installed on the left side of the adjusting mechanism 9, the type of the second driving motor 8 can be Y160M-4, a grinding wheel 7 is fixedly connected to an output shaft of the second driving motor 8, a second rotating motor 19 is fixedly installed on the inner bottom wall of the fixed bin 4, the type of the second rotating motor 19 can be 86CM35, a sleeve rod 25 is fixedly connected to the output shaft of the second rotating motor 19, a second threaded rod 18, the top of the loop bar 25 is provided with a first thread groove in threaded connection with the second threaded rod 18, the tops of the inner walls of the left side and the right side of the fixed bin 4 are fixedly connected with a second slide rail 16, the tops of the left side and the right side of the second threaded rod 18 are fixedly connected with a second slide block 17 in sliding connection with the second slide rail 16, the inner peripheral wall of the fixed bin 4 is fixedly connected with four metal bins 20, the four metal bins 20 are positioned on the same horizontal plane and distributed in a circular equidistant manner, movable rods 22 with one ends penetrating and extending to the outside of the fixed bin 4 are movably mounted in the four metal bins 20, one side of the metal bin 20, which is far away from the second threaded rod 18, is provided with second through holes matched with the movable rods 22, the fixed bin 4 is provided with four third through holes which are respectively matched with the four movable rods 22, one side of the movable rod 22, which is close to the second threaded rod 18, is fixedly connected with an extrusion rod, one side of the extrusion rod 24 close to the second threaded rod 18 is arc-shaped, one side of the metal bin 20 close to the second threaded rod 18 is provided with a first through hole matched with the extrusion rod 24, the extrusion rod 24 is in a horizontal T shape, the outer side of the movable rod 22 is sleeved with a spring 23, the outer peripheral wall of the second threaded rod 18 is fixedly connected with four extrusion blocks 12 which are respectively positioned at the bottoms of the four extrusion rods 24, the extrusion blocks 12 are in a right-angled triangle shape, one side of the movable rod 22 far away from the second threaded rod 18 is movably provided with an adjusting screw rod 21, one end of the adjusting screw rod 21 penetrates through and extends into the movable rod 22, one side of the movable rod 22 far away from the second threaded rod 18 is provided with a second threaded groove in threaded connection with the adjusting screw rod 21, a gear to be processed is sleeved on the fixed bin 4 to be supported by the support ring 5, and then the second rotating, the sleeve rod 25 is rotated, and the second sliding block 17 is slidably connected with the second sliding rail 16, so that the position of the second threaded rod 18 is limited, the second threaded rod 18 can move upwards through being in threaded connection with the first threaded groove, the extrusion block 12 is driven to move upwards, the extrusion block 12 can extrude the extrusion rod 24, the extrusion rod 24 further moves towards the inside of the metal bin 20, the movable rod 22 is extruded to move towards the outside of the fixed bin 4, meanwhile, the spring 23 is compressed, the movable rod 22 drives the adjusting screw rod 21 to move, the adjusting screw rod 21 is further contacted with the inner peripheral wall of the gear and clamps and fixes the gear, when the gear needs to be disassembled after being processed, the second rotating motor 19 can be adjusted, the sleeve rod 25 rotates reversely, the second threaded rod 18 moves downwards, the extrusion block 12 does not extrude the extrusion rod 24 any more, the extrusion rod 24 returns to the initial position through the tension of the spring 23, the whole process realizes the quick installation and disassembly of the gear, improves the working efficiency of workers, when the size of the processed gear is changed by arranging the adjusting screw rod 21, the adjusting screw rod 21 is rotated, the adjusting screw rod 21 moves towards one side far away from the fixed bin 4 by being in threaded connection with the second thread groove, the adjusting screw rod 21 can move to the length matched with the inner diameter of the gear, then the second rotating motor 19 is started, the adjusting screw rod 21 can be contacted with the inner peripheral wall of the gear and clamps and fixes the gear, the clamping and fixing of the gears with different sizes can be realized by only rotating the adjusting screw rod 21, the processing efficiency of the workers is improved, after the gear is clamped and fixed, the first rotating motor 2 can be adjusted, the first threaded rod 3 can be rotated, and the first sliding rail 14 and the first sliding block 13 are arranged to be in sliding connection, so that the position of the first movable block 15 is limited, and then make first movable block 15 accessible first threaded rod 3 with first screw thread through-hole threaded connection and remove, cooperate again and adjust first driving motor 6, the position that makes the gear need polish is adjustable, simultaneously can start third rotating electrical machines, make the third threaded rod rotate, again through being provided with third slider and third slide rail sliding connection, the position of second movable block has been restricted, make second movable block accessible third threaded rod and second screw thread through-hole threaded connection and reciprocate, make the height-adjustable of emery wheel 7 of polishing, the position of coordinating first rotating electrical machines 2 and first driving motor 6 to the gear is adjusted, it is more convenient to make the gear polish.

In summary, in the polishing device for gear processing, a gear to be processed is sleeved on the fixed bin 4, the whole gear is supported by the support ring 5, then the second rotating motor 19 is started to rotate the sleeve rod 25, the second sliding block 17 is slidably connected with the second sliding rail 16, so that the position of the second threaded rod 18 is limited, the second threaded rod 18 can move upwards through being in threaded connection with the first threaded groove, the extrusion block 12 is driven to move upwards, the extrusion block 12 can extrude the extrusion rod 24, the extrusion rod 24 further moves towards the inside of the metal bin 20, the movable rod 22 is extruded to move towards the outside of the fixed bin 4, the spring 23 is compressed, the movable rod 22 drives the adjusting screw rod 21 to move, the adjusting screw rod 21 is further contacted with the inner peripheral wall of the gear and clamps and fixes the gear, when the gear needs to be disassembled after being processed, adjustable second rotating electrical machines 19 makes loop bar 25 antiport, makes second threaded rod 18 move down, and then makes extrusion block 12 no longer extrude extrusion stem 24, makes extrusion stem 24 get back to initial position through the tension of spring 23, and whole process has realized quick installation and the dismantlement to the gear, has improved staff's work efficiency.

And, through setting up the lead screw 21, when making the size of processing the gear change, rotate the lead screw 21, make the lead screw 21 move towards the side far away from the fixed storehouse 4 through connecting with the second thread groove screw thread, make the lead screw 21 move to the length matching with gear bore diameter, then start the second rotating electrical machines 19, make the lead screw 21 contact with inner peripheral wall of the gear and centre gripping the gear fixedly, have realized only needing to rotate the lead screw 21 and can carry on the centre gripping fixedly to the gear of different sizes, more convenient and fast, has improved the processing efficiency of the staff, after the gear centre gripping is fixed, can adjust the first rotating electrical machines 2, make the first threaded rod 3 rotate, through setting up the first slide rail 14 and sliding connection of the first slide block 13, thus has limited the position of the first movable block 15, and then make the first movable block 15 can pass the first threaded rod 3 and first threaded through-hole screw thread connection and move from side to side, the first driving motor 6 is adjusted in a matched manner, so that the position of the gear to be polished can be adjusted, meanwhile, a third rotating motor can be started, a third threaded rod is rotated, a third sliding block is slidably connected with a third sliding rail, the position of a second movable block is limited, the second movable block can be vertically moved through the threaded connection of the third threaded rod and a second threaded through hole, the height of a polishing grinding wheel 7 can be adjusted, the position of the gear is adjusted by matching the first rotating motor 2 and the first driving motor 6, the gear is polished more conveniently, and the problem that when the gear polishing device on the market at present polishes the gear, the gear fixing device is troublesome, the gear cannot be clamped and fixed quickly, different grinding devices are required to be adopted for gears of different sizes, the grinding device replacement steps are complex, and the working efficiency of workers is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a grinding device for gear machining, includes processing platform (1), its characterized in that: the left side of the top of the processing table (1) is fixedly provided with a first rotating motor (2), the top of the processing table (1) is fixedly connected with a first sliding rail (14) positioned on the right side of the first rotating motor (2), the top of the processing table (1) is movably provided with a first movable block (15), the bottom of the first movable block (15) is fixedly connected with a first sliding block (13) in sliding connection with the first sliding rail (14), the top of the processing table (1) is fixedly connected with a fixed plate (11) positioned on the right side of the first sliding rail (14), one end of an output shaft of the first rotating motor (2) is fixedly connected with a first threaded rod (3) which penetrates through and extends to the right side of the first movable block (15) and is movably connected with the left side of the fixed plate (11), the top of the first movable block (15) is fixedly provided with a first driving motor (6), and an output shaft of the first driving motor (6) is fixedly connected with a fixed bin (, periphery wall fixedly connected with support ring (5) of fixed bin (4), right side fixedly connected with backup pad (10) at processing platform (1) top, the left side fixed mounting of backup pad (10) has adjustment mechanism (9), the left side fixed mounting of adjustment mechanism (9) has second driving motor (8), the output shaft fixedly connected with grinding wheel (7) of second driving motor (8), the interior diapire fixed mounting of fixed bin (4) has second rotating electrical machines (19), the output shaft fixedly connected with loop bar (25) of second rotating electrical machines (19), the top movable mounting of loop bar (25) has one end to run through and extend to the inside second threaded rod (18) of loop bar (25), the equal fixedly connected with second slide rail (16) in top of fixed bin (4) left and right sides inner wall, the equal fixedly connected with in top of second threaded rod (18) left and right sides and second slide rail (16) sliding connection's the second threaded rod (18) Two sliders (17), the internal perisporium fixedly connected with quantity of fixed storehouse (4) is metal storehouse (20) of four, four the equal movable mounting in inside of metal storehouse (20) has one end to run through and extend to the outside movable rod (22) of fixed storehouse (4), one side fixedly connected with one end that movable rod (22) are close to second threaded rod (18) runs through and extends to outside stripper (24) of metal storehouse (20), the outside cover of movable rod (22) is equipped with spring (23), the periphery wall fixedly connected with quantity of second threaded rod (18) is four and is located respectively stripper block (12) of four stripper (24) bottoms, one side movable mounting that second threaded rod (18) were kept away from in movable rod (22) has one end to run through and extend to inside accommodate the lead screw (21) of movable rod (22).

2. The grinding device for gear processing according to claim 1, characterized in that: the left side of first movable block (15) is seted up with first threaded rod (3) threaded connection's first screw through-hole, support ring (5) are the paralleling with the top of processing platform (1).

3. The grinding device for gear processing according to claim 1, characterized in that: the top of the sleeve rod (25) is provided with a first thread groove in threaded connection with the second threaded rod (18), and one side of the extrusion rod (24) close to the second threaded rod (18) is arc-shaped.

4. The grinding device for gear processing according to claim 1, characterized in that: one side of the metal bin (20) close to the second threaded rod (18) is provided with a first through hole matched with the extrusion rod (24), and the extrusion rod (24) is in a horizontal T shape.

5. The grinding device for gear processing according to claim 1, characterized in that: the shape of extrusion piece (12) is a right triangle, the second through-hole with movable rod (22) looks adaptation is seted up to one side that second threaded rod (18) was kept away from in metal storehouse (20), the third through-hole that quantity is four and respectively with four movable rod (22) looks adaptations is seted up to the periphery wall in fixed storehouse (4).

6. The grinding device for gear processing according to claim 1, characterized in that: four metal storehouse (20) are located same horizontal plane and are circular equidistance and distribute, the second thread groove with accommodate the lead screw (21) threaded connection is seted up to one side that second threaded rod (18) were kept away from in movable rod (22).

7. The grinding device for gear processing according to claim 1, characterized in that: the adjusting mechanism (9) comprises an adjusting bin, a third rotating motor, a third threaded rod, a third sliding rail, a third sliding block and a second movable block, the adjusting bin is fixedly connected to the left side of the supporting plate (10), the third rotating motor is fixedly mounted on the left side of the supporting plate (10) and located at the bottom of the adjusting bin, the third threaded rod is fixedly connected to an output shaft of the third rotating motor, one end of the third threaded rod penetrates through and extends into the adjusting bin and is movably connected with the inner top wall of the adjusting bin, a second movable block is movably mounted on the outer side of the third threaded rod, one end of the second movable block penetrates through and extends to the left side of the adjusting bin, the third sliding rail is fixedly connected to the inner wall of the right side of the adjusting bin, the third sliding block is fixedly connected to the right side of the second movable block and is slidably connected with the third sliding rail, and a second threaded through hole, the left side of the adjusting bin is provided with a rectangular through hole, the width of the rectangular through hole is the same as that of the second movable block, and the height of the rectangular through hole is half of that of the adjusting bin.