CN217914360U - Cylindrical grinding machine for grinding surface of gear piece of gearbox - Google Patents

Abstract

The utility model discloses a cylindrical grinder for grinding the surface of a gear piece of a gearbox, which structurally comprises a grinder main body, a first chute, a protective door, an observation window, a handle, a working area, a control terminal, a signal lamp and radiating holes, wherein a noise reduction device is arranged at the top of the grinder main body, which is beneficial to reducing the noise generated during the working of the cylindrical grinder and avoiding the noise from damaging the eardrum of a user; set up and slowly reduced mobile device in grinding machine main part bottom, be favorable to buffering the shock attenuation through slowly reducing mobile device, avoid violent vibrations to lead to the inside spare part of cylindrical grinder to drop or damage, lead to influencing going on of work of polishing, reduce work efficiency, also can cushion the shock attenuation to the vibrations transmission that the cylindrical grinder produced when the work of polishing, prevent to shake and conduct to the wheel and lead to the wheel to be damaged, the extension slowly reduces mobile device's life, use cost is reduced.

Description

Cylindrical grinding machine for grinding surface of gear piece of gearbox

Technical Field

The utility model relates to a cylindrical grinder technical field, concretely relates to cylindrical grinder for gearbox gear piece surface is polished.

Background

The cylindrical grinding machine is a grinding machine for processing the outer surface and the shaft shoulder end surface formed by the cylindrical, conical or other-shaped plain lines of a workpiece; the grinding machine is most widely used and can be used for processing various cylindrical conical outer surfaces and shaft shoulder end surfaces; the main machine consists of a lathe bed, a lathe head, a lathe tail, a grinding head, a transmission dust collection device and the like; the headstock and the grinding head can rotate by an angle and are used for grinding the thimble and the special clamp for chamfering the leather roller.

Lack on the cylindrical grinder and remove shock-absorbing device, be unfavorable for carrying out the violent vibrations that produce when the transfer of position and the transfer to the cylindrical grinder and cushion the shock attenuation, the cylindrical grinder can produce great noise when carrying out the work of polishing moreover, and the effect that gives sound insulation in the grinding machine upper portion is relatively poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome prior art not enough, present a cylindrical grinder for gearbox gear spare surface is polished, solved and lacked the device that removes buffering shock attenuation on the cylindrical grinder, be unfavorable for carrying out the violent vibrations that produce when the transfer of position and the transfer to the cylindrical grinder and cushion the shock attenuation, the cylindrical grinder can produce huge noise in addition when carrying out the work of polishing, the relatively poor problem of sound insulation effect in the grinding machine upper portion.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a cylindrical grinder for gearbox gear piece surface is polished, including grinding machine main part, first spout, guard gate, observation window, handle, workspace, control terminal, signal lamp and louvre, it locates grinding machine main part top to fall the device of making an uproar, the mobile device that slows down locates grinding machine main part bottom, it includes soundproof cotton, acoustic celotex board, connecting portion, falls the bolt of making an uproar, honeycomb abatvoix, inhales sound cotton and cushion to fall the device of making an uproar, soundproof cotton locates grinding machine main part preceding terminal surface upper end, terminal surface and acoustic celotex board adhesive connection before the soundproof cotton, top left end is fixed with connecting portion in the grinding machine main part, connecting portion right side and honeycomb abatvoix board left side bolted connection, honeycomb abatvoix medial surface and the bolt threaded connection of making an uproar, connecting portion bottom is equipped with inhales the sound cotton, connecting portion bottom left end is fixed with the blotter.

Furthermore, a first chute is formed in the right side of the grinding machine main body, the bottom of the first chute in the grinding machine main body is connected with the right end of the bottom of the protective door in a sliding mode, an observation window is formed in the right side of the protective door, the rear end of the right side of the protective door is welded to the left side of the handle, a working area is arranged in the grinding machine main body, a control terminal is installed at the rear end of the right side of the grinding machine main body, a signal lamp is arranged at the rear end of the top of the grinding machine main body, and heat dissipation holes are formed in the front end face of the grinding machine main body.

Furthermore, the slow-reducing moving device comprises a placing box, a traction rod, wheels, a second sliding groove, a stop block, a connecting rod, a first damping spring, a sliding block, a curved rod, a wheel seat, a pressing plate, a connecting block, a stress plate, a sliding rod, a limiting block, a second damping spring, a spring bin, a pressure reducing plate and a third damping spring, wherein the placing box is arranged below the main body of the grinding machine, the front end face of the placing box is welded with the back of the traction rod, the bottom of the placing box is provided with the wheels, the bottom of the placing box is provided with the second sliding groove, the right side of the second sliding groove in the placing box is fixed with the stop block, the left side of the stop block is provided with the connecting rod, the left side of the first damping spring is installed at the bottom of the left side of the placing box, the right side of the first damping spring is elastically connected with the left side of the sliding block, the inner side of the sliding block is connected with the connecting rod through the sliding block in a sliding manner, the back of the sliding block is rotatably connected with the lower end of the curved rod, the back of the curved rod is rotatably connected with the back of the wheel seat, the top of the wheel seat is rotatably connected with the bottom of the pressing plate, and the wheel seat is connected with a bolt, and the top of the connecting block is arranged at the top of the pressing plate.

Further, link a top and be fixed with the atress board, atress board back and place incasement back sliding connection, atress board top and grinding machine main part bottom welding, the clamp plate medial surface and the slide bar sliding connection who runs through the clamp plate, the slide bar top is equipped with the stopper, clamp plate bottom and second damping spring top elastic connection, second damping spring bottom and spring storehouse top welding, the slide bar bottom is fixed with the pressure reducing plate, right side sliding connection in pressure reducing plate right side and the spring storehouse, pressure reducing plate bottom and third damping spring top elastic connection, third damping spring fixed mounting is bottom in the spring storehouse, slide bar right side and spring storehouse top medial surface sliding connection.

Furthermore, the soundproof cotton and the soundproof plates at the front end and the rear end of the grinding machine main body are consistent in size.

Furthermore, the specification and size of the stress plate are matched with the size of the inner side surface of the placing box.

Further, the height of the sliding rod is larger than the inner height of the spring bin.

Furthermore, the diameter of the slide rod is matched with the diameter of the opening at the top of the spring bin.

Furthermore, the sound insulation board is made of a foamed fiber aluminum board.

Furthermore, the material of the placing box is stainless steel.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) A cylindrical grinder for gearbox gear spare surface is polished through having set up and falling the device of making an uproar in grinding machine main part top, is favorable to reducing the noise that the cylindrical grinder during operation produced, avoids noise harm user's eardrum.

2) A cylindrical grinder for gearbox gear piece surface is polished, through having set up the bradyseism mobile device in grinding machine main part bottom, be favorable to cylindrical grinder to cushion the shock attenuation through the bradyseism mobile device when passing through rugged road section, avoid violent vibrations to lead to the inside spare part of cylindrical grinder to drop or damage, lead to influencing going on of work of polishing, reduce work efficiency, also can cushion the shock attenuation to the vibrations transmission that cylindrical grinder produced when the work of polishing, prevent that vibrations from transmitting to the wheel and leading to the wheel to be damaged, the extension bradyseism mobile device's life, use cost is reduced.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

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

FIG. 2 is a schematic view of the main structure of the grinding machine of the present invention;

fig. 3 is a schematic view of a left perspective structure of the noise reduction device of the present invention;

fig. 4 is an enlarged schematic structural view of a point a in fig. 3 according to the present invention;

FIG. 5 is a schematic view of the sound insulation board of the present invention;

fig. 6 is a schematic view of the right perspective structure of the slow-moving device of the present invention.

In the figure: the device comprises a grinding machine main body-1, a first sliding groove-2, a protective door-3, an observation window-4, a handle-5, a working area-6, a control terminal-7, a signal lamp-8, a heat dissipation hole-9, a noise reduction device-10, a slow-reducing moving device-11, soundproof cotton-101, a soundproof board-102, a connecting part-103, a noise reduction bolt-104, a honeycomb sound absorption board-105, sound absorption cotton-106, a cushion pad-107, a placing box-111, a traction rod-112, a wheel-113, a second sliding groove-114, a stop block-115, a connecting rod-116, a first damping spring-117, a sliding pressure block-118, a curved rod-119, a wheel seat-1110, a pressure plate-1111, a connecting block-1112, a stressed plate-1113, a sliding rod-1114, a limiting block-1116, a second damping spring-1116, a spring bin-1117, a pressure reduction plate-1118 and a third damping spring-1119.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, 2, 3, 4 and 5, the present invention provides a cylindrical grinder for grinding the surface of a gear piece of a transmission: the noise reduction device comprises a grinding machine main body 1, a first chute 2, a protective door 3, an observation window 4, a handle 5, a working area 6, a control terminal 7, a signal lamp 8 and heat dissipation holes 9, wherein the noise reduction device 10 is arranged at the top of the grinding machine main body 1, the slow-moving device 11 is arranged at the bottom of the grinding machine main body 1, the noise reduction device 10 comprises soundproof cotton 101, sound insulation boards 102, a connecting part 103, noise reduction bolts 104, a honeycomb sound absorption board 105, sound absorption cotton 106 and a buffer pad 107, the soundproof cotton 101 is arranged at the upper end of the front end face of the grinding machine main body 1, the soundproof cotton 101 is used for reducing noise, the front end face of the soundproof cotton 101 is in adhesive connection with the sound insulation boards 102, the sound insulation boards 102 are used for assisting in reducing noise, the connecting part 103 is fixed at the left end of the inner top of the grinding machine main body 1, the right side of the sound board connecting part 103 is in bolted connection with the left side of the honeycomb sound absorption board 105, the honeycomb sound absorption board 105 can be used for initially reducing noise, the inner side face of the honeycomb sound absorption board 105 is in threaded connection with the noise reduction bolts 104, the honeycomb acoustic board 105 is locked by the noise reduction bolt 104, the sound absorption cotton 106 is arranged at the bottom of the connecting part 103, the sound absorption cotton 106 can partially absorb noise, the buffer pad 107 is fixed at the left end of the bottom of the connecting part 103, the buffer pad 107 is used for reducing vibration generated during noise conduction and further reducing noise, the first chute 2 is arranged at the right side of the grinding machine main body 1, the bottom in the first chute 2 on the grinding machine main body 1 is in sliding connection with the right end of the bottom of the protective door 3, the observation window 4 is arranged at the right side of the protective door 3, the rear end of the right side of the protective door 3 is welded with the left side of the handle 5, the working area 6 is arranged in the grinding machine main body 1, the control terminal 7 is installed at the rear end of the right side of the grinding machine main body 1, the signal lamp 8 is arranged at the rear end of the top of the grinding machine main body 1, the heat dissipation holes 9 are arranged on the front end face of the grinding machine main body 1, and the sound insulation cotton 101 and the sound insulation board 102 which are consistent in size, the noise reduction degree of the two ends is ensured to be consistent.

Referring to fig. 1 and 6, the present invention provides an external grinding machine for grinding the surface of a gear member of a gearbox, wherein a slow moving device 11 comprises a placing box 111, a traction rod 112, a wheel 113, a second chute 114, a stop block 115, a connecting rod 116, a first damping spring 117, a sliding pressure block 118, a curved rod 119, a wheel seat 1110, a pressure plate 1111, a connecting block 1112, a stress plate 1113, a sliding rod 1114, a limit block 1115, a second damping spring 1116, a spring bin 1117, a pressure reducing plate 1118 and a third damping spring 1119, the placing box 111 is disposed below a main body 1 of the grinding machine, the front end surface of the placing box 111 is welded to the back of the traction rod 112, the traction rod 112 is convenient for driving the external grinding machine to move, the bottom of the placing box 111 is provided with the wheel 113, the bottom of the placing box 111 is provided with the second chute 114, the right side of the second chute 114 of the placing box 111 is fixed with the stop block 115, the stop block 115 can provide a limiting function, the connecting rod 116 is disposed on the left side of the stop block 115, the left side of a first damping spring 117 is arranged at the bottom end of the left side in the placing box 111, the right side of the first damping spring 117 is elastically connected with the left side of a sliding pressure block 118, the sliding pressure block 118 which is favorable for moving buffers and damps the compression operation of the first damping spring 117, the inner side surface of the sliding pressure block 118 is slidably connected with a connecting rod 116 which penetrates through the sliding pressure block 118, the sliding pressure block 118 is convenient to move left and right on the connecting rod 116, the inner back of the sliding pressure block 118 is rotatably connected with the lower end of the back of a curved rod 119, the curved rod 119 which is favorable for rotating drives the sliding pressure block 118 to move mechanically, the upper end of the back of the curved rod 119 is rotatably connected with the inner back of a wheel seat 1110, the curved rod 119 rotates on the wheel seat 1110, the top of the wheel seat 1110 is connected with a bolt at the bottom of a pressing plate 1111, the pressing plate 1111 which is favorable for moving drives the wheel seat 1110 to move, a connecting block 1112 is arranged at the top of the pressing plate 1111, the connecting block 1112 is convenient for driving the pressing plate 1111 to drive the pressing plate 1111 to descend, a stressed plate 1113 is fixed at the top of the connecting block 1112, the stress board 1113 convenient to descend drives the connecting block 1112 to descend, the back of the stress board 1113 is in sliding connection with the back in the placing box 111, the stress board 1113 is convenient to move up and down in the placing box 111, the top of the stress board 1113 is welded with the bottom of the grinding machine body 1, the grinding machine body 1 is convenient to drive the stress board 1113 to move, the inner side surface of the pressing plate 1111 is in sliding connection with a sliding rod 1114 penetrating through the pressing plate 1111, the sliding rod 1114 can slide up and down in the stress board 1113 conveniently, the top of the sliding rod 1114 is provided with a limit block 1115 which provides a limit function for the sliding rod 1114, the bottom of the pressing plate 1111 is elastically connected with the top of a second damping spring 1116, the stress board 1113 convenient to descend compresses the second damping spring 1116 to damp vibration, the bottom of the second damping spring 1116 is welded with the top of a spring bin 1117, the bottom of the sliding rod 1114 is fixed with a pressure reducing plate 1118, the sliding rod 1114 is favorable for moving to drive the pressure reducing plate 1118 to descend, the right side of the pressure reducing plate 1118 is slidably connected with the inner right side of the spring bin 1117, the pressure reducing plate 1118 is favorable for sliding up and down in the spring bin 1117, the bottom of the pressure reducing plate 1118 is elastically connected with the top of a third damping spring 1119, the pressure reducing plate 1118 convenient to descend compresses the third damping spring 1119 to buffer and damp vibration, the third damping spring 1119 is fixedly arranged at the bottom in the spring bin 1117, the right side of a sliding rod 1114 is slidably connected with the inner side surface of the top of the spring bin 1117, the sliding rod 1114 is convenient to move up and down in the spring bin 1117, the size of the stress plate 1113 is matched with the size of the inner side surface of the placing box 111, the sliding capacity of the stress plate 1113 in the placing box 111 is improved, the height of the sliding rod 1114 is greater than the inner height of the spring bin 1117, so that the elastic action of the third damping spring 1119 can be fully exerted to perform, the diameter of the damping sliding rod 1114 is matched with the diameter of an opening at the top of the spring bin 1117, the sliding capacity of the sliding rod 1114 on the inner side surface of the top of the spring bin 1117 is improved.

The utility model provides a cylindrical grinder for grinding the surface of a gear piece of a gearbox through improvement, and the working principle is as follows;

firstly, when the equipment is used, the device is firstly placed in a working area, and then the equipment is connected with an external power supply, so that the required electric energy can be provided for the work of the equipment;

secondly, firstly, a user hangs the traction rope on the traction rod 112, pulls the traction rope to drive the placing box 111, the wheel 113 and the grinding machine body 1 to move, when the traction rope is untied at a proper position, the traction rope can start to work, the self weight of the grinding machine body 1 drives the stress plate 1113, the pressing plate 1111 and the connecting block 1112 to move downwards in the moving process, the descending pressing plate 1111 drives the wheel seat 1110 to descend, the descending wheel seat 1110 drives the curved rod 119 to rotate and descend, the descending curved rod 119 pushes the sliding block 118 to move leftwards on the connecting rod 116, the moving sliding block 118 compresses the first damping spring 117, the pressing plate 1111 descends to compress the second damping spring 1116, and the descending stress plate 1113 drives the sliding rod 1114, the limiting block 1115 and the pressure reducing plate 1118 to move, decompression board 1118 that removes compresses third damping spring 1119, at first damping spring 117, under the spring action of second damping spring 1116 and third damping spring 1119, the shock attenuation is cushioned to the vibrations of the production that cylindrical grinder removed, be favorable to cylindrical grinder to cushion the shock attenuation through slowly reducing mobile device 11 when passing through rugged highway section like this, avoid violent vibrations to lead to the inside spare part of cylindrical grinder to drop or damage, lead to influencing going on of the work of polishing, reduce work efficiency, also can cushion the shock attenuation to the vibrations transmission that cylindrical grinder ground the during operation production, prevent that vibrations conduction from leading to wheel 113 and being damaged, the extension slowly reduces life of mobile device 11, reduce use cost and lead to wheel 113 and be damaged, the extension slowly reduces life of mobile device 11, the vibration damping device

Thirdly, after the cylindrical grinding machine is stopped, a user places an unprocessed gear piece in a working area 6, places the gear piece, pulls a handle 5 by hand to pull the protective door 3, sets a program through a control terminal 7 to start grinding work after the protective door 3 is closed, and can observe the grinding condition in the working area 6 through an observation window 4, after grinding is finished, the protective door 3 is pulled open to take down the ground gear piece, and then a new unprocessed gear piece is placed for processing;

fourth, the cylindrical grinder can produce very big noise when carrying out the work of polishing, can be to grinding machine main part 1 front and back both ends diffusion at the during operation noise, the noise is absorbed by honeycomb abatvoix 105 earlier, the noise can tentatively fall making an uproar because honeycomb abatvoix 105's nature in honeycomb abatvoix 105, the noise reachs through the conduction and inhales sound cotton 106, noise is absorbed the consumption and is partly on inhaling sound cotton 106, conduct to the blotter 107 on after that, the intensity of vibration that produces and then continue the noise reduction when blotter 107 can the noise reduction conduction, when remaining noise process soundproof cotton 101 and acoustic celotex board 102, the size of noise can alleviate the injury to the human body through reducing, be favorable to reducing the noise that the cylindrical grinder during operation produced like this, avoid noise harm user's eardrum.

A cylindrical grinder for gearbox gear piece surface is polished, it falls device 10 in 1 top of grinding machine main part to have set up through optimizing, there is soundproof cotton 101, acoustic celotex board 102, honeycomb acoustic panel 105, inhale cotton 106 of sound and cushion 107, the noise that is favorable to producing cylindrical grinder during operation like this reduces, avoid huge noise to harm user's eardrum, protect user's life safety, be favorable to improving device's utilizability and convenience, through optimizing set up and slowly reduced mobile device 11 in grinding machine main part 1 bottom, be favorable to like this cylindrical grinder buffering the shock attenuation through slowly reducing mobile device 11 when passing through the rugged highway section, avoid violent vibrations to lead to the inside spare part of cylindrical grinder to drop or damage, lead to influencing going on of polishing work, reduce work efficiency, also can cushion the shock attenuation to the vibrations transmission that cylindrical grinder produced when carrying out polishing work, prevent that vibrations conduction from leading to wheel 113 to be damaged, prolong the life of slowly reducing mobile device 11, and reduce use cost.

Claims (8)

1. A cylindrical grinding machine for grinding the surface of a gear piece of a gearbox comprises a grinding machine main body (1) and heat dissipation holes (9); the method is characterized in that: still including making an uproar device (10) and slowly reducing mobile device (11), grinding machine main part (1) top is located in device (10) of making an uproar, grinding machine main part (1) bottom is located in device (11) of slowly reducing, make an uproar device (10) including soundproof cotton (101), acoustic celotex board (102), connecting portion (103), fall bolt (104), honeycomb abatvoix (105), inhale sound cotton (106) and cushion (107), grinding machine main part (1) preceding terminal surface upper end is located soundproof cotton (101), soundproof cotton (101) preceding terminal surface and acoustic celotex board (102) adhesive bonding, grinding machine main part (1) interior top left end is fixed with connecting portion (103), connecting portion (103) right side and honeycomb abatvoix board (105) left side bolted connection, honeycomb abatvoix board (105) medial surface and bolt (104) threaded connection of making an uproar fall, connecting portion (103) bottom left end is equipped with inhale sound cotton (106), connecting portion (103) bottom left end is fixed with cushion (107).

2. The cylindrical grinding machine for grinding the surface of a gear piece of a gearbox according to claim 1, characterized in that: the grinding machine is characterized in that a first sliding groove (2) is arranged on the right side of the grinding machine main body (1), the bottom of the first sliding groove (2) in the grinding machine main body (1) is connected with the right end of the bottom of a protective door (3) in a sliding mode, an observation window (4) is arranged on the right side of the protective door (3), the rear end of the right side of the protective door (3) is welded to the left side of a handle (5), a working area (6) is arranged in the grinding machine main body (1), a control terminal (7) is installed at the rear end of the right side of the grinding machine main body (1), a signal lamp (8) is arranged at the rear end of the top of the grinding machine main body (1), and heat dissipation holes (9) are formed in the front end face of the grinding machine main body (1).

3. The cylindrical grinding machine for grinding the surface of a gear piece of a gearbox according to claim 1, characterized in that: the slow-reducing moving device (11) comprises a placing box (111), a traction rod (112), wheels (113), a second sliding groove (114), a stop block (115), a connecting rod (116), a first damping spring (117), a sliding pressure block (118), a curved rod (119), a wheel seat (1110), a pressing plate (1111), a connecting block (1112), a stress plate (1113), a sliding rod (1114), a limiting block (1115), a second damping spring (1116), a spring bin (1117), a pressure reducing plate (1118) and a third damping spring (1119), wherein the placing box (111) is arranged below the grinding machine main body (1), the front end surface of the placing box (111) is welded with the back of the traction rod (112), the bottom of the placing box (111) is provided with the wheels (113), the bottom of the placing box (111) is provided with the second sliding groove (114), the right side of the second sliding groove (114) on the placing box (111) is fixed with the stop block (115), the left side of the stop block (115) is provided with the connecting rod (116), the left side of the first damping spring (117) is arranged in the placing box (111), and the sliding pressure block (118) is connected with the sliding pressure block (118), back and curved bar (119) back lower extreme rotate to be connected in briquetting (118), curved bar (119) back upper end rotates with wheel seat (1110) interior back to be connected, wheel seat (1110) top and clamp plate (1111) bottom bolted connection, clamp plate (1111) top is equipped with even piece (1112).

4. The cylindrical grinding machine for grinding the surface of a gear piece of a gearbox according to claim 3, characterized in that: link piece (1112) top to be fixed with atress board (1113), atress board (1113) back and place back sliding connection in case (111), atress board (1113) top and grinding machine main part (1) bottom welding, clamp plate (1111) medial surface and slide bar (1114) sliding connection who runs through clamp plate (1111), slide bar (1114) top is equipped with stopper (1115), clamp plate (1111) bottom and second damping spring (1116) top elastic connection, second damping spring (1116) bottom and spring storehouse (1117) top welding, slide bar (1114) bottom is fixed with decompression board (1118), right side sliding connection in decompression board (1118) right side and the spring storehouse (1117), decompression board (1118) bottom and third damping spring (1119) top elastic connection, third damping spring (1119) fixed mounting is bottom in spring storehouse (1117), slide bar (1114) right side and spring storehouse (1117) medial surface sliding connection.

5. The cylindrical grinding machine for grinding the surface of a gear piece of a gearbox according to claim 1, characterized in that: the sound insulation cotton (101) and the sound insulation plates (102) which are positioned at the front end and the rear end of the grinding machine main body (1) are consistent in size.

6. The cylindrical grinding machine for grinding the surface of a gear piece of a gearbox according to claim 3, wherein: the specification and size of the stress plate (1113) are matched with the size of the inner side surface of the placing box (111).

7. The cylindrical grinding machine for grinding the surface of a gear piece of a gearbox according to claim 3, characterized in that: the height of the sliding rod (1114) is larger than the inner height of the spring bin (1117).

8. The cylindrical grinding machine for grinding the surface of a gear piece of a gearbox according to claim 3, wherein: the diameter of the sliding rod (1114) is matched with the diameter of the top opening of the spring bin (1117).

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