CN113787353A - Displacement driving base - Google Patents

Abstract

The invention discloses a deflection driving base which comprises a base plate, an underframe, a traction gear and a driving motor, wherein the traction gear is rotatably arranged on the base plate; a main shaft of the driving motor is provided with a driving gear, the driving gear is in meshing transmission with a traction gear, and the traction gear is used for supporting the workbench; two groups of workbench positioning modules symmetrically arranged on two sides of the traction gear are arranged on the base plate; every group workstation orientation module is including installing locating piece on the workstation, setting positioning support on the base plate, setting locating part and the sensor of setting on one side at the locating part on the positioning support, be provided with the response piece on the locating piece. According to the deflection driving base, the positioning block is additionally arranged on the workbench, the trigger assembly on the positioning block triggers the sensor to send out a braking signal, and finally the positioning block is locked by the locking mechanism, so that the workbench is prevented from moving automatically during machining.

Description

Displacement driving base

Technical Field

The invention relates to the technical field of workbench control, in particular to a deflection driving base.

Background

In order to improve machining efficiency, can set up the duplex position according to actual demand on the workstation, it is current comparatively common to pass through cam indexer drive workstation and rotate to shift the station that has the work piece to the processing region with loading, then processing equipment processes the work piece. The workbench is horizontally arranged on a main shaft of the cam indexer, the cam indexer drives the workbench to rotate by a set angle every time so as to realize conversion of double stations, but the cam indexer on the market can be small in load capacity and cannot be used with a heavy workbench, and the cam indexer is complex in transmission structure and high in purchase cost. In addition, the cam indexer can only rotate by a specific angle, so that the position of the working station of the workbench cannot be finely adjusted, the position of the machining equipment can only be adjusted to be matched with the position, and the applicability is poor.

Secondly, because the workbench is not locked and limited by the locking structure after the station is switched in place, the workbench may vibrate or deflect under the transmission of external processing load in the processing process, so that the position of the station is changed, the processing position of a workpiece is changed, and the processing precision is influenced.

It is seen that improvements and enhancements to the prior art are needed.

Disclosure of Invention

In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to provide a displacement driving base with a heavy load for driving a station on a workbench to perform precise position conversion, which is intended to solve at least one of the technical problems in the prior art.

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

a deflection driving base comprises a base plate, an underframe used for supporting the base plate, a traction gear rotatably arranged on the base plate, a motor support plate horizontally arranged on the base plate and a driving motor arranged on the motor support plate; a main shaft of the driving motor is provided with a driving gear, the driving gear is in meshing transmission with a traction gear, and the traction gear is used for supporting the workbench; two groups of workbench positioning modules symmetrically arranged on two sides of the traction gear are arranged on the base plate; each group of the workbench positioning modules comprises a positioning block arranged on the workbench, a positioning support arranged on the base plate, a limiting part arranged on the positioning support and a sensor arranged beside the limiting part, wherein an induction sheet is arranged on the positioning block and used for triggering the sensor; and the positioning support is provided with a locking mechanism for pressing the positioning block on the limiting part.

The positioning support comprises a bottom plate and a vertical plate arranged on the bottom plate, the locking mechanism and the limiting part are arranged on the vertical plate in parallel, and a buffer structure is arranged on the vertical plate.

The locking mechanism comprises a corner pressing cylinder arranged on a vertical plate, and the corner pressing cylinder comprises a cylinder body, a rotary arm arranged at the end part of the piston rod and a compression screw arranged on the rotary arm.

The limiting part is a circular ring limiting block, the buffering structure comprises a hydraulic buffer coaxially arranged with the circular ring limiting block, an avoiding hole for a piston rod of the hydraulic buffer to penetrate through is formed in the vertical plate, and the piston rod of the hydraulic buffer and the collided head can move in an inner ring of the circular ring limiting block.

Be provided with two at least elongated holes that extend along the fore-and-aft direction on the bottom plate, every elongated hole corresponds a locking screw of installation, the rear of bottom plate is equipped with a support regulating block, two regulation screw holes and the through-hole of setting between two regulation screw holes are seted up on the side that the support regulating block deviates from the bottom plate, be equipped with on the rear end face of bottom plate with the coaxial positioning screw hole that sets up of through-hole, the through-hole department of support regulating block passes direction stop screw and packs into positioning screw hole, every direction stop screw is installed to the regulation screw hole department adaptation of support regulating block, and the free end of direction stop screw supports presses the rear end face at the bottom plate.

The lubricating assembly used for lubricating the traction gear is arranged on the base plate, the oil blocking surrounding edge is arranged on the upper surface of the base plate, the oil return hole is formed in the base plate, and the traction gear and the oil return hole are arranged inside the oil blocking surrounding edge under the projection on the horizontal plane.

The lubricating assembly comprises an oil supply assembly, a fulcrum shaft arranged on the base plate and a lubricating wheel rotatably arranged on the fulcrum shaft, and the lubricating wheel is abutted against the transmission teeth on the traction gear; the oil supply assembly is used for supplying oil to the lubricating wheel.

The oil supply assembly comprises an oil tank, an oil supply pump, an oil delivery pipe and an oil adding channel arranged on the fulcrum shaft, wherein one end of the oil adding channel is arranged on the outer surface of the fulcrum shaft, and the other end of the oil adding channel is arranged at the top end of the fulcrum shaft; the inlet pipeline of the oil supply pump is connected with the oil tank, and the oil filling channel is connected with the oil outlet pipeline of the oil supply pump through a connecting pipe.

The motor support plate is characterized in that adjusting lugs are arranged on two sides of the motor support plate, gear adjusting blocks opposite to the adjusting lugs are arranged on the base plate, a gear jacking screw facing the adjusting lugs is in threaded connection with each gear adjusting block, and the free end of each gear jacking screw is abutted against the corresponding adjusting lug.

The chassis comprises a cylinder and a plurality of groups of supporting leg assemblies for supporting the cylinder; and reinforcing rib plates are arranged on the inner wall of the cylinder and the bottom surface of the base plate.

Has the advantages that:

compared with the prior art, the driving and positioning of the workbench are independently designed, the transmission structure is simplified, the manufacturing cost is reduced, the traction gear has both power transmission function and supporting and bearing function to the workbench, the workbench can be stably installed on the traction gear through a backing plate, the two workbench positioning modules respectively position one of the double stations, the positioning block is additionally installed on the workbench and is positioned in front of the two workbench positioning modules in an initial state, the positioning block is matched with one of the workbench positioning modules to realize positioning, when the workbench needs to switch stations to transfer workpieces on the workbench, the driving motor drives the workbench to move through the transmission of the driving gear and the traction gear, the positioning block approaches to the other workbench positioning module along a circular arc-shaped advancing track, and the induction sheet on the positioning block also approaches to the sensor, when the sensor is triggered to the induction sheet on the positioning block, sensor feedback signal to control system, control system control driving motor stops the drive to the workstation in the twinkling of an eye, locking mechanical system compresses tightly the positioning block on the locating part then, make locating part and positioning block laminate mutually on the one hand, accomplish the location accurately, the positioning error that significantly reduces, on the other hand has locked the position of positioning block, ensure that the workstation can not take place the self-motion man-hour, positioning accuracy is high, need not specific controller, the cost of manufacture is low, excellent in use effect.

Drawings

Fig. 1 is a perspective view of a displacement drive base provided by the present invention.

Fig. 2 is a partially enlarged view of the region L in fig. 1.

Fig. 3 is a top view of the indexing drive base provided by the present invention.

Fig. 4 is a bottom view of the deflection driving base provided in the present invention.

Fig. 5 is a first perspective view of the table positioning module in an unset state.

Fig. 6 is a second perspective view of the table positioning module in an unset state.

Fig. 7 is a perspective view of the table positioning module in a positioned state.

FIG. 8 is a schematic view of the connection of the indexing drive base to the table.

Description of the main element symbols: 1-base plate, 2-workbench positioning module, 21-positioning block, 211-upper connecting plate, 212-lower convex plate, 213-mounting hole, 22-positioning support, 221-base plate, 222-vertical plate, 223-elongated hole, 23-sensor, 25-induction sheet, 261-support adjusting block, 262-adjusting threaded hole, 263-guiding limit screw, 264-base plate jacking screw, 27-limiting member, 28-hydraulic buffer, 281-collided head, 29-corner lower pressing cylinder, 291-cylinder body, 292-revolving arm, 293-pressing screw, 31-traction gear, 32-motor support plate, 33-driving motor, 34-driving gear, 41-oil retaining surrounding edge, 42-oil return hole, 43-fulcrum shaft, 44-lubricating wheels, 45-oil adding channels, 51-adjusting lugs, 52-gear adjusting blocks, 53-gear tightening screws, 61-cylinders, 62-support leg assemblies, 63-reinforcing ribs, 621-connecting leg plates, 622-ground leg plates and 623-ground pile holes.

Detailed Description

The present invention provides a shifting driving base, which is described in further detail below with reference to the accompanying drawings and examples, in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.

Referring to fig. 1-8, the present invention provides a shift driving base, which includes a substrate 1, a bottom frame 6 for supporting the substrate 1, a traction gear 31 rotatably disposed on the substrate 1, a motor support plate 32 horizontally disposed on the substrate 1, and a driving motor 33 disposed on the motor support plate 32; a driving gear 34 is arranged on a main shaft of the driving motor 33, the driving gear 34 is in meshing transmission with a traction gear 31, and the traction gear 31 is used for supporting the workbench 7; two groups of workbench positioning modules 2 symmetrically arranged at two sides of the traction gear 31 are arranged on the base plate 1; each set of the workbench positioning modules 2 comprises a positioning block 21 installed on the workbench 7, a positioning support 22 arranged on the substrate 1, a limiting part 27 arranged on the positioning support 22, and a sensor 23 arranged beside the limiting part 27, wherein a sensing sheet 25 is arranged on the positioning block 21, and the sensing sheet 25 is used for triggering the sensor 23; the positioning support 22 is provided with a locking mechanism for pressing the positioning block 21 against the limiting member 27.

Compared with the prior art, the driving and positioning of the workbench are independently designed, the transmission structure is simplified, the manufacturing cost is reduced, the traction gear 31 has the power transmission function and the supporting and bearing function on the workbench, the workbench 7 can be stably installed on the traction gear 31 through the base plate 331, the workbench is provided with two stations, namely two workbench positioning modules 2 are respectively used for positioning one station, the positioning block 21 is additionally installed on the workbench 7, in the initial state, the positioning block 21 is positioned in front of the two workbench positioning modules 2, the positioning block 21 is matched with one workbench positioning module 2 to realize positioning, when the workbench 7 needs to be switched to transfer a workpiece on the workbench, the driving motor 33 drives the workbench to move through the transmission of the driving gear 34 and the traction gear 31, and the positioning block 21 approaches to the other workbench positioning module 2 through the arc-shaped advancing track, the response piece 25 on the locating piece 21 also is close to towards sensor 23, when the response piece 25 on the locating piece 21 triggers sensor 23, sensor 23 feedback signal is to control system, control system control driving motor 33 stops the drive to the workstation in the twinkling of an eye, then locking mechanical system compresses tightly locating piece 21 on locating piece 27, make locating piece 27 and locating piece 21 laminate mutually on the one hand, accomplish the location accurately, greatly reduced positioning error, on the other hand has locked the position of locating piece 21, ensure that the workstation can not take place the self-movement when processing, positioning accuracy is high, repeated positioning accuracy +/-0.02 mm, need not specific controller, low in manufacturing cost, excellent in use effect.

Specifically, referring to fig. 5 to 7, the positioning support 22 includes a bottom plate 221 and a vertical plate 222 disposed on the bottom plate 221, the locking mechanism and the limiting member 27 are disposed in parallel on the vertical plate 222, a buffer structure is disposed on the vertical plate 222, when the sensor 23 is triggered by the sensing piece 25 on the positioning block 21, the sensor 23 feeds back a signal to the control system, the control system controls the workbench driving device to stop driving the workbench instantly, at this time, the workbench has a certain amount of inertia motion, the buffer structure performs slow deceleration on the positioning block 21, and guides the positioning block 21 to contact with the front end surface of the limiting member 27, so as to prevent the positioning block 21 from rigidly colliding with the limiting member 27. By such an arrangement, not only is the positioning module compact in structure and the required assembly space reduced, but also the positions of the locking mechanism and the limiting member 27 can be finely adjusted synchronously by adjusting the position of the positioning support 22.

In the present embodiment, the locking mechanism includes a corner pressing cylinder 29 provided on the vertical plate 222, and the corner pressing cylinder 29 includes a cylinder block 291, a rotary arm 292 provided at an end of the piston rod, and a pressing screw 293 provided on the rotary arm 292. As shown in fig. 5 and 6, in the initial state, the piston rod of the corner depressing cylinder 29 is extended, the rotating arm 292 thereof is vertically disposed downward, and the pressing screw 293 is disposed toward the vertical plate 222, so that the corner depressing cylinder 29 does not interfere with the traveling path of the positioning block 21. As shown in fig. 7, when the sensor 23 is triggered by the sensing piece 25 on the positioning block 21, after the control system obtains a feedback signal of the sensor 23, the control system controls the corner pressing cylinder 29 to act, and the piston rod of the corner pressing cylinder 29 drives the rotary arm 292 to swing 90 ° in the direction of the positioning block 21, so that the pressing screw 293 faces the positioning block 21, and then the piston rod retracts into the cylinder 291, thereby driving the pressing screw 293 to press the positioning block 21 on the limiting member 27, accurately completing the positioning, and ensuring that the workbench 7 does not move during processing.

In order to further improve the positioning reliability, the driving motor 33 is a band-type brake motor, and after the corner pressing cylinder 29 is fastened in place, the control system controls the band-type brake motor to brake and tightly hold, so that the double-acting-force positioning is realized.

It should be understood that, because the corner hold-down cylinder 29 is an existing product, compared with other locking mechanisms, the corner hold-down cylinder 29 has high functional integration, and can be directly assembled by selecting a suitable model on the market, so that the manufacturing cost is low. In order to prevent the rotary arm 292 from interfering with the substrate 1, an avoiding opening is formed in the substrate 1, and in an initial state, the rotary arm 292 vertically passes through the avoiding opening downward.

As shown in fig. 5, in this embodiment, in order to further improve the structural compactness, the limiting member 27 is a circular limiting member, one end surface of the circular limiting member is fixedly connected to the vertical plate 222, and the other end surface is a limiting surface. The buffer structure comprises a hydraulic buffer 28 coaxially arranged with the circular ring limiting block, namely the hydraulic buffer 28 is arranged on the end surface of the vertical plate 222 departing from the limiting block 27, the vertical plate 222 is provided with an avoidance hole for a piston rod of the hydraulic buffer 28 to pass through, the piston rod of the hydraulic buffer 28 and the collision head 281 can move in an inner ring of the circular limiting block, the middle shaft space of the limiting block 27 is reasonably utilized, the limiting block 27 and the hydraulic buffer 28 can conveniently limit the positioning block 21, the positioning block 21 can be conveniently machined, the positioning module is in a non-positioning state, the head 281 of the hydraulic buffer 28 protrudes from the limiting surface of the ring limiting block, when the positioning block 21 contacts with the collided head 281, the hydraulic buffer 28 buffers and decelerates the positioning block 21 by means of hydraulic damping, so that the impact force caused by the motion inertia of the positioning block 21 is solved, and the positioning block 21 can be attached to the circular ring limiting block accurately and without damage.

As shown in fig. 6, the positioning support 22 can be adjusted back and forth, and the bottom plate 221 is provided with at least two elongated holes 223 extending in the back and forth direction, and each elongated hole 223 is correspondingly provided with a locking screw (not shown). The elongated hole 223 refers to a non-circular hole, and may be a rectangular hole, a waist-shaped hole, a rounded rectangular hole, or the like. By arranging the long hole 223 and the locking screw, when the horizontal position of the positioning support 22 needs to be changed, the locking screw is loosened to adjust the positioning position and then locked again, and the adjustment is convenient.

In order to facilitate fine adjustment, a support adjusting block 261 is arranged behind the bottom plate 221, two adjusting threaded holes 262 and a through hole arranged between the two adjusting threaded holes 262 are formed in the side face, away from the bottom plate 221, of the support adjusting block 261, a positioning threaded hole coaxially arranged with the through hole is formed in the rear end face of the bottom plate 221, the through hole of the support adjusting block 261 penetrates through a guide limiting screw 263 and is installed in the positioning threaded hole, the guide limiting screw 263 is in clearance fit with the through hole of the support adjusting block 261, due to the limitation of the head and the threaded section of the guide limiting screw 263, the positioning support 22 can only linearly move along the axial direction of the guide limiting screw 263 relative to the support adjusting block 261, and the distance between the bottom plate 221 and the support adjusting block 261 is determined by adjusting the depth of the guide limiting screw 263 screwed into the positioning threaded hole. A bottom plate jacking screw 264 is fittingly installed at the adjusting threaded hole 262 of each support adjusting block 261, the free end of the bottom plate jacking screw 264 is pressed against the rear end face of the bottom plate 221 by screwing the bottom plate jacking screw 264, so that the head of the guide limit screw 263 is tightly attached to the support adjusting block 261, the horizontal position of the support 22 is locked, and finally the locking screw is screwed down, so that the support 22 can be completely fixed and positioned.

Specifically, the positioning block 21 includes an upper connection plate 211 and a lower connection plate 212 disposed at the bottom of the upper connection plate 211, that is, the positioning block 21 is shaped as a T-shaped block, the upper connection plate 211 is provided with a plurality of mounting holes 213, and each mounting hole 213 is provided with a screw, so that the screw is fixedly connected to the table 7.

The sensor 23 is preferably a slot-type correlation photoelectric sensor which is small and precise and can be directly installed on the substrate 1 without the aid of a bracket of the sensor 23, and when the sensing piece 25 passes through between a light emitter and a receiver on the slot-type correlation photoelectric sensor 23, the sensing piece 25 blocks light transmitted by the light emitter, so that the slot-type correlation photoelectric sensor 23 is triggered to respond and feed back a signal to a control system, and the positioning block 21 reaches a preset position.

Preferably, referring to fig. 2, a lubricating assembly for lubricating the traction gear 31 is disposed on the base plate 1, an oil retaining surrounding edge 41 is disposed on the upper surface of the base plate 1, an oil return hole 42 is disposed on the base plate 1, the oil retaining surrounding edge 41 is in a square structure under the projection on the horizontal plane, and the traction gear 31 and the oil return hole 42 are disposed inside the oil retaining surrounding edge 41. Lubricating oil behind the lubricated gear that pulls 31 can be directly on dropping the base plate 1 under the action of gravity, and the flow direction of oil retaining surrounding edge 41 to lubricating oil limits, prevents that lubricating oil from spilling over base plate 1 and polluting workshop ground, and the lubricating oil in the oil retaining surrounding edge 41 can flow into oil return hole 42, and oil return pipe is connected to oil return hole 42 department, and oil return pipe realizes collecting lubricating oil drainage to the oil collecting container, is favorable to follow-up reuse lubricating oil.

Specifically, the lubricating unit includes an oil supply unit, a support shaft 43 provided on the base plate 1, and a lubricating roller 44 rotatably provided on the support shaft 43, and the lubricating roller 44 is in contact with the transmission gear on the traction gear 31. The oil supply assembly comprises an oil supply pump, an oil delivery pipe and an oil adding channel 45 arranged on the fulcrum shaft 43, wherein one end of the oil adding channel 45 is arranged on the outer surface of the fulcrum shaft 43, and the other end of the oil adding channel is arranged at the top end of the fulcrum shaft 43; the inlet pipeline of the oil supply pump is connected with the oil tank, and the oil adding channel 45 is connected with the oil outlet pipeline of the oil supply pump through a connecting pipe. When the worker turns on the oil supply pump, the lubricating oil flows out from the top end of the support shaft 43 through the oil supply passage 45 to wet the lubricating roller 44, the lubricating oil is uniformly transferred to the transmission teeth of the traction gear 31 by the rotation of the traction gear 31 by the lubricating roller 44, the drive gear 34 is also well lubricated, the transmission resistance between the traction gear 31 and the drive gear 34 is reduced, and the smoothness of the movement of the traction gear 31 and the drive gear 34 is maintained.

Preferably, referring to fig. 2, the two sides of the motor support plate 32 are both provided with an adjusting lug 51, the base plate 1 is provided with a gear adjusting block 52 opposite to the adjusting lug 51, the gear adjusting block 52 is L-shaped, the inner side surface of the gear adjusting block 52 is attached to the side surface of the motor support plate 32 to limit the position of the motor support plate 32 to be adjusted only in the front-back direction, each gear adjusting block 52 is in threaded connection with a gear tightening screw 53 facing the adjusting lug 51, and the free end of the gear tightening screw 53 is pressed against the adjusting lug 51. During assembly, the gear jacking screw 53 is screwed, and the gear jacking screw 53 pushes the adjusting lug 51 to move towards the direction of the traction gear 31, so that the traction gear 31 and the driving gear 34 are close to each other, the effect of adjusting the installation clearance between the traction gear 31 and the driving gear 34 is achieved, and the smoothness and the reliability of the movement of the traction gear 31 and the driving gear 34 are further ensured.

Specifically, referring to fig. 3 and 4, the base frame includes a cylinder 61 and a plurality of sets of leg assemblies 62 for supporting the cylinder 61; the upper edge of the cylinder 61 is welded and fixed with the substrate 1, and the inner wall of the cylinder 61 and the bottom surface of the substrate 1 are provided with reinforcing ribs 63, so that the substrate 1 is better supported. Each group of the supporting leg assemblies 62 comprises a connecting leg plate 621 and a ground leg plate 622 arranged on the bottom surface of the connecting leg plate 621, the connecting leg plate 621 is in screw connection with the ground leg plate 622, and two ground pile holes 623 located on two sides of the connecting leg plate 621 are formed in the ground leg plate 622. In practical applications, the hole 623 is used for inserting a ground pile to fix the base to the ground, thereby ensuring the working stability of the workbench. In addition, the side wall of the cylinder 61 is provided with a side sealing plate 611, so that the structure in the cylinder 61 can be maintained by detaching the side sealing plate, and the use is convenient.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.

Claims (10)

1. A deflection driving base is characterized by comprising a base plate, an underframe used for supporting the base plate, a traction gear rotatably arranged on the base plate, a motor support plate horizontally arranged on the base plate and a driving motor arranged on the motor support plate; a main shaft of the driving motor is provided with a driving gear, the driving gear is in meshing transmission with a traction gear, and the traction gear is used for supporting the workbench; two groups of workbench positioning modules symmetrically arranged on two sides of the traction gear are arranged on the base plate; each group of the workbench positioning modules comprises a positioning block arranged on the workbench, a positioning support arranged on the base plate, a limiting part arranged on the positioning support and a sensor arranged beside the limiting part, wherein an induction sheet is arranged on the positioning block and used for triggering the sensor; and the positioning support is provided with a locking mechanism for pressing the positioning block on the limiting part.

2. The shifting drive base according to claim 1, wherein the positioning support comprises a bottom plate and a vertical plate arranged on the bottom plate, the locking mechanism and the limiting member are arranged on the vertical plate in parallel, and a buffer structure is arranged on the vertical plate.

3. The index drive base of claim 2 wherein said locking mechanism comprises a corner hold down cylinder on a riser, said corner hold down cylinder comprising a cylinder, a swivel arm at the end of a piston rod, and a hold down screw on the swivel arm.

4. The shift driving base according to claim 2, wherein the limiting member is a circular ring limiting member, the buffer structure comprises a hydraulic buffer coaxially disposed with the circular ring limiting member, the vertical plate is provided with an avoiding hole for a piston rod of the hydraulic buffer to pass through, and the piston rod and the collided head of the hydraulic buffer can move in an inner ring of the circular ring limiting member.

5. The shifting drive base according to claim 2, wherein the bottom plate is provided with at least two elongated holes extending in the front-rear direction, each elongated hole is correspondingly provided with a locking screw, the rear of the bottom plate is provided with a support adjusting block, the side of the support adjusting block, which is away from the bottom plate, is provided with two adjusting threaded holes and a through hole arranged between the two adjusting threaded holes, the rear end surface of the bottom plate is provided with a positioning threaded hole coaxial with the through hole, the through hole of the support adjusting block penetrates through a guide limit screw and is arranged in the positioning threaded hole, a bottom plate jacking screw is arranged at the adjusting threaded hole of each support adjusting block in an adaptive manner, and the free end of the bottom plate jacking screw abuts against the rear end surface of the bottom plate.

6. The index drive pedestal of claim 1, wherein a lubrication assembly is disposed on the base plate for lubricating the traction gear, an oil retaining rim is disposed on the upper surface of the base plate, an oil return hole is disposed on the base plate, and the traction gear and the oil return hole are disposed inside the oil retaining rim in a horizontal plane projection.

7. The shift drive base according to claim 6, wherein the lubricating member includes an oil supply member, a support shaft provided on the base plate, and a lubricating member rotatably provided on the support shaft, the lubricating member abutting against the transmission teeth of the traction gear; the oil supply assembly is used for supplying oil to the lubricating wheel.

8. The shift drive base according to claim 7, wherein the oil supply unit includes an oil tank, an oil supply pump, an oil delivery pipe, and an oil supply passage provided on the fulcrum, one end of the oil supply passage being open to an outer surface of the fulcrum, and the other end being open to a tip end of the fulcrum; the inlet pipeline of the oil supply pump is connected with the oil tank, and the oil filling channel is connected with the oil outlet pipeline of the oil supply pump through a connecting pipe.

9. The shift driving base according to claim 1, wherein the motor support plate is provided with adjusting lugs on both sides thereof, the base plate is provided with gear adjusting blocks opposite to the adjusting lugs, each gear adjusting block is in threaded connection with a gear tightening screw facing the adjusting lug, and a free end of the gear tightening screw abuts against the adjusting lug.

10. The index drive base of claim 1, wherein the chassis includes a cylinder and a plurality of sets of leg assemblies for supporting the cylinder; and reinforcing rib plates are arranged on the inner wall of the cylinder and the bottom surface of the base plate.

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