CN219791434U - Split-driven workpiece turntable system - Google Patents

Abstract

The utility model relates to a workpiece turntable system driven by split bodies, wherein a turntable and a turntable driving device are arranged in split bodies, the turntable is arranged on a conveying mechanism, a turntable input shaft is longitudinally arranged and positioned below a turntable substrate, the turntable is in driving connection with a turntable shaft through a gear rack mechanism, the turntable shaft is vertically arranged, the upper end of the turntable shaft is fixedly connected with a turntable positioned above the turntable substrate, a gear of the gear rack mechanism is arranged at the lower end of the turntable shaft, a rack of the gear rack mechanism is arranged on the turntable input shaft, the turntable driving device is provided with a gas/oil cylinder, a gas oil cylinder is longitudinally arranged, a piston rod of the gas/oil cylinder extends out from the inner end of a cylinder body of the gas/oil cylinder, and the piston rod of the gas/oil cylinder and the turntable input shaft when the turntable is positioned at a driving station are positioned on the same straight line. The utility model is beneficial to avoiding the damage of the severe operation environment to the turntable driving device.

Description

Split-driven workpiece turntable system

Technical Field

The utility model relates to a split-driven workpiece turntable system.

Background

In industrial cleaning, an object to be cleaned (simply referred to as a workpiece) may be mounted on a turntable (a rotary table or a similar turntable assembly), and the orientation of the workpiece is changed by rotation of the turntable, so as to clean each part of the peripheral surface of the workpiece, and the turntable is driven by a motor (a motor) on the turntable. For example, chinese patent document CN218692049U discloses a wafer cleaning device, including rotating assembly (i.e. the revolving stage) and be located the spray assembly of rotating assembly top, rotating assembly is used for bearing the wafer and drives the wafer is rotatory, including carousel and actuating mechanism, actuating mechanism disposes in the bottom of carousel, be used for driving the carousel and rotate, including driving motor and shaft coupling, driving motor's output shaft passes through the bottom surface of shaft coupling transmission connection carousel, driving motor's top is provided with the mount pad, the shaft coupling is fixed in the mount pad, the swing arm drives the spray part and is fan-shaped orbit removal from the center of carousel to the carousel edge, also can be fan-shaped orbit removal from the edge of carousel to the center of carousel, thereby make the spray part be fan-shaped reciprocating motion mode cover the majority area of wafer above the carousel, or make the spray face of spray part cover the surface of whole wafer. Since the turntable is exposed to the spraying area, it is necessary to provide a strict seal on the turntable and to perform reliable maintenance in order to prevent the liquid from contacting the motor and the corresponding circuit, and thus not only does the equipment manufacturing and maintenance costs increase, but also the electrical safety problem cannot be completely avoided.

Disclosure of Invention

The utility model aims to provide a workpiece turntable system driven in a split mode, so that damage to a turntable driving device caused by a severe operation environment is avoided.

The technical scheme of the utility model is as follows: the workpiece turntable system driven by the split comprises a turntable and a turntable driving device, wherein the turntable and the turntable driving device are arranged in a split mode, the turntable is arranged on a conveying mechanism, an input shaft of the turntable is longitudinally (horizontally) arranged and positioned below a turntable base plate (or a base plate and a bottom plate), the turntable is in driving connection (or driving connection) with a turntable shaft through a gear rack (driving mechanism), the turntable shaft is vertically arranged, the upper end of the turntable shaft is fixedly connected with a turntable (a rotating piece/a rotating platform in the turntable) positioned above the turntable base plate, a gear of the gear rack mechanism is arranged at the lower end of the turntable, racks of the gear rack mechanism are arranged on the input shaft of the turntable, the turntable driving device is provided with a gas/oil cylinder (a cylinder or a hydraulic cylinder) which is abbreviated as a gas oil cylinder, a piston rod of the gas/oil cylinder is longitudinally arranged and extends out from the inner end (the end towards the turntable direction in the longitudinal direction) of the cylinder, and the input shaft of the turntable is positioned on the same straight line (the axes of the turntable and the turntable is positioned on the same straight line when the turntable is positioned at a driving station (the position/station which needs to be driven by the driving device).

Further, the turntable is rotatably supported above the turntable substrate through a thrust bearing, or the turntable is rotatably connected with the turntable substrate through the thrust bearing.

Preferably, the turntable substrate is provided with a vertical turntable shaft hole for the turntable shaft to pass through, the turntable shaft hole is a round hole, and the turntable shaft positioned in the turntable shaft hole is a round shaft which is in rotary fit (connected in a movable connection mode for allowing the turntable shaft to rotate relative to the turntable shaft hole but not allowing horizontal movement) so as to be beneficial to the stability of the turntable shaft.

Further, a spring reset device is arranged between the turntable shaft and the turntable substrate to form a reset function, so that when the turntable shaft is not driven by external force, the turntable is restored to the original position (initial position or normal position), thereby only the turntable input shaft is required to push the turntable shaft to rotate unidirectionally through the gear rack mechanism, and under any position (turntable rotation angle), the turntable rotation angle is determined by the spring reset function and the pushing/limiting function of the turntable input shaft.

Preferably, the spring return means employs a return coil spring having both ends respectively connected to the turntable base plate and the turntable shaft.

Further, the turntable is provided with a limit structure for limiting that the turntable shaft cannot pass (rotate) over the starting position in the reset direction (the rotating direction of the turntable in the reset process or the reset rotating direction).

The turret input shaft may extend forward or rearward, with the pneumatic cylinders being located on the front or rear side of the turret, respectively.

Preferably, the conveying mechanism consists of a front chain transmission mechanism and a rear chain transmission mechanism which are arranged in parallel, the turntable substrate is positioned on the upper surface of the chain transmission mechanism, and the bottom surfaces (lower surfaces) on the front side and the rear side of the turntable substrate are fixedly connected to chains of the two chain transmission mechanisms.

Preferably, the corresponding chain wheels of the two chain transmission mechanisms are respectively fixedly connected through corresponding chain wheel shafts or fixedly arranged on the same chain wheel shaft.

Preferably, a sprocket shaft connecting the two drive sprockets is drivingly connected with a conveying motor (motor for driving the conveying mechanism).

In use, for example, in an industrial cleaning apparatus, the conveyor mechanism, turntable drive (e.g., the cylinder of a pneumatic cylinder), and other related parts may be mounted on the frame of the cleaning apparatus.

In the above case, further, a guide plate is mounted on the frame, and the guide plate extends transversely (in the conveying direction of the conveying mechanism) and is two in number, and is respectively located on the front side and the rear side of the turntable substrate.

Preferably, the guide plate adopts a V-shaped plate with an inward opening, the front and rear side edges of the turntable base plate are of V-shaped structures matched with the V-shaped plates, and the guide plate is inserted into a V-shaped groove of the corresponding V-shaped plate and is in sliding fit with the V-shaped plate.

The guide plate can be fixed on the frame directly or through a connecting piece, and other pieces can be directly mounted on the frame or mounted on corresponding connecting pieces/mounting bases arranged on the frame.

The beneficial effects of the utility model are as follows: through the split arrangement of the rotary table and the driving device, the driving device is not arranged on the rotary table, so that the device can be better suitable for severe working environments such as industrial flushing and the like, and meanwhile, the driving device is allowed to be isolated from the severe working environments by adopting an isolator (such as a cleaning bin), so that the damage of the severe environment to the driving device is avoided, the faults are reduced, and the service life is prolonged; due to the arrangement of the turntable reset device, automatic reset or reset rotation (rotation in a reset direction) of the turntable can be realized, and the driving device only needs to apply unidirectional thrust to the turntable input shaft, so that a simple pneumatic oil cylinder is allowed to be used as a prime mover of the driving device, and a complex conveying mechanism is not required to be arranged between the piston rod and the turntable input shaft, and the conveying structure under split driving is greatly simplified; because the chain transmission mechanisms symmetrically arranged at the front side and the rear side are adopted, and the corresponding chain wheels at the two sides are connected through the chain wheel shafts, the synchronization of the two chain transmission mechanisms is realized, and no accumulated error is generated; the guide plate of the turntable substrate is convenient to prepare and low in cost, and the upper groove wall and the lower groove wall of the guide groove (V-shaped groove) are inclined planes, so that liquid entering the guide groove can automatically flow out even in an industrial washing environment, deposition of impurities or oil dirt and the like in the liquid in the guide groove is effectively avoided, and faults caused by the deposition of the impurities or the oil dirt are avoided or reduced.

Drawings

FIG. 1 is a schematic view of the construction of the present utility model in a state of use (applied to an industrial cleaning apparatus);

fig. 2 is a schematic diagram in a plan view corresponding to fig. 1.

Detailed Description

Referring to fig. 1 and 2, the turntable is mainly composed of a base plate (or base, etc.) 22 and a turntable 21 located above the base plate and capable of rotating. The turntable, as a platform for loading an object (may be simply referred to as a workpiece) 1, may be provided with a fixing/clamping mechanism for fixing/clamping the object to be loaded (may be simply referred to as a workpiece) according to the prior art, or with screw holes, the workpiece is fastened to the turntable by bolts through flanges on the workpiece, so that the workpiece is rotated by the turntable to perform the related work. For example, when used in a cleaning apparatus, the rotation angle or orientation of the object to be cleaned is adjusted/changed by the rotation of the turntable to achieve 360 ° cleaning of the workpiece with only fewer nozzle arrangements.

The turntable is located above the base plate and is rotatably connected to the base plate by a suitable form of thrust bearing (e.g., angular contact thrust bearing) 25.

The turntable is fixedly arranged on the conveying mechanism, and the conveying mechanism and the turntable driving device are both arranged on the frame 10 to realize transverse conveying of the turntable (taking the conveying direction of the conveying mechanism as the transverse direction).

The rotation range of the turntable can be according to actual needs.

The upper end of the turntable shaft 23 is fixedly connected with the turntable, and the lower end is positioned below the substrate. The gear 39 of the gear-rack mechanism is fixedly mounted at the lower end of the turntable shaft, and the rack (or rack structure) of the gear-rack mechanism is arranged on the turntable input shaft (for example, the corresponding area of the turntable input shaft is prepared into a rack shape, or the separately processed rack is fixedly connected with the turntable input shaft into a whole) and meshed with the gear, and when the turntable input shaft moves longitudinally, the turntable shaft is driven to rotate.

A spring reset device 26 is arranged between the turntable shaft and the base plate to form a reset function, so that when the turntable shaft is not driven by external force, the turntable returns to an initial position, and therefore, only the turntable input shaft is required to push the turntable shaft to rotate unidirectionally through the gear rack mechanism, and under any position (turntable rotation angle), the spring reset function and the pushing/limiting function of the turntable input shaft jointly determine the turntable rotation angle.

The spring return means may be of any suitable prior art. For example, a reset coil spring is provided, both ends of which are respectively connected to the base plate and the turntable shaft.

A limit structure for defining the turntable shaft or a limit structure of the turntable input shaft may be provided to define a maximum rotation range of the turntable shaft in the reset direction as a normal/initial position of the turntable shaft. For example, radial limit posts 41 extending radially (in the radial direction of the turntable) are provided at the edge portions of the turntable (particularly, at the edge portions of the lower surface to reduce space occupation), vertical limit posts 42 extending vertically upward are provided at the upper surface of the base plate, and the vertical limit posts are provided at positions such that when the turntable is at the initial position, the vertical limit posts are just blocked in the reset rotation direction of the radial limit posts, thereby limiting the maximum rotation degree of the reset to be the return to the initial position.

Under the above-described reset/limit mechanism, such a turntable can be used in a case where the rotation range (maximum amplitude) of the turntable is less than 360 °, for example, a case where the rotation amplitude of the turntable is required to be 180 ° or 90 °.

The box 29, or called gear box, can be arranged under the base plate, the rack and pinion mechanism is positioned in the gear box, the turntable input shaft passes through the longitudinal through holes on the corresponding side box wall of the gear box and enters the box, the longitudinal through holes on the corresponding side box wall of the gear box, through which the turntable input shaft passes, can be set as unthreaded holes, and the corresponding parts of the turntable input shaft are set as polish rods which are in sliding fit with the corresponding unthreaded holes, so that the limitation and the guide of the turntable input shaft are realized, and the turntable input shaft can only longitudinally move. If necessary, a guiding structure 28 which is in sliding fit with other suitable parts of the turntable input shaft can be further arranged, so that the movement of the turntable input shaft is stable.

The outer end of the turntable input shaft is positioned outside the gear box body.

The prime mover of the turntable driving device adopts a gas/oil cylinder (a cylinder or a hydraulic cylinder, which can be abbreviated as a gas-oil cylinder). The cylinder body 31 of the gas/oil cylinder may be mounted on the frame. If necessary, an elastic support pad 17, such as a rubber vibration damping pad, may be provided between the pneumatic cylinder and the frame, through which the cylinder body of the pneumatic cylinder is mounted on the frame, thereby allowing a certain degree of non-coaxiality between the piston rod 32 and the turntable input shaft 35 through a moderate deformation of the elastic support pad.

When the turntable is in a driving station state, the piston rod is opposite to the outer end of the turntable input shaft, and the axes of the piston rod and the turntable input shaft are positioned on the same longitudinal straight line. The stroke of the piston rod and the configuration of the gear-rack mechanism are properly set, so that the piston rod can push the turntable to rotate within a required range and can be separated from contact with the input shaft of the turntable, and the turntable is allowed to move under the drive of the conveying mechanism.

The outer end of the turntable input shaft may be provided with a structure for mating with the end of the piston rod, such as a flat end surface or a cylindrical groove 36 that can extend into the end of the piston rod.

The conveying mechanism consists of two chain transmission mechanisms which are respectively positioned on the front and back sides of the frame (the horizontal direction perpendicular to the conveying direction of the conveying mechanism is the front and back direction or the longitudinal direction), the two chain transmission mechanisms adopt the same chain transmission mechanism, are arranged in parallel/symmetrically (mirror symmetry), are arranged symmetrically relative to the front and back of the turntable, and the bottom of the substrate is connected to the (long-layer chain) chains 14 of the two chain transmission mechanisms through connecting pieces, and the chains drive the two chain transmission mechanisms to move. According to the operation requirement, one position of the turntable in the travel range can be set as a driving station, and when the turntable moves to the station, related operation is carried out, and the turntable is required to be driven by a turntable driving device. For example, when used in an industrial cleaning apparatus, the turntable performs a cleaning operation at a drive station (cleaning station) during which the turntable is required to be driven to rotate to change the direction of the workpiece.

Based on the working requirement, the conveying mechanism can adopt a reciprocating motion mode, so that the turntable is always positioned in the top plane area of the conveying mechanism (chain transmission mechanism).

Corresponding chain wheels of the two chain transmission mechanisms are fixedly connected through corresponding chain wheel shafts, wherein the chain wheel shafts of the two driving chain wheels are in driving connection with a transmission motor (a motor for driving the transmission mechanism can adopt a gear motor or other motors and can also adopt other prime movers capable of realizing the driving of the transmission mechanism), and the two chain transmission mechanisms are synchronously driven to act through the same transmission motor, so that the transmission driving is simplified, the synchronization of the two chains is realized, and no accumulated error is generated. The chain transmission mechanism can adapt to the severe use conditions of an industrial washing device and the like, and can better cooperate with the guide mechanism to realize stable operation.

A transversely extending guide plate 12 is provided on the frame for guiding/limiting the linear movement of the substrate. The guide plate is positioned on the outer side of the base plate and is provided with a sliding groove which is in sliding fit with the front edge and the rear edge of the base plate, so that the base plate is limited to move transversely and not move longitudinally, and shaking/swinging beyond the allowable range can not occur.

As a preferred embodiment, the guide plates are V-shaped plates with inward openings (inward in the longitudinal direction, or opposite directions of the two guide plates), the front and rear side edges of the base plate are provided with V-shaped structures which are engaged with the V-shaped plates, the front and rear side edges of the base plate may be all provided with V-shaped structures which are engaged with the V-shaped grooves, and the lateral both ends of the front and rear side edges of the base plate main body portion may be provided with outwardly projecting flanges 24, and the outer edge portions of these flanges may be provided with V-shaped structures which are engaged with the V-shaped plates. The V-shaped structure is inserted on the V-shaped groove of the corresponding V-shaped plate and is in sliding fit with the V-shaped plate (connected in a movable connection mode allowing the base plate to slide along the extending direction of the sliding chute), so that the sliding fit between the base plate and the guide plate is realized. In this case, a V-shaped concave structure (which may be referred to as a V-groove) inside the V-shaped plate is used as a slide groove, and V-shaped structures extending into the V-shaped groove in the front and rear side edges of the base plate are used as sliders slidably fitted with the slide groove. The V-shaped plate is used as the guide plate, so that the preparation is simple and convenient, the cost is low, all the main surfaces (including the V-shaped groove wall on the inner side and the corresponding outer wall on the outer side) of the V-shaped plate are inclined planes, the vertically falling oil-containing dirty cleaning liquid cannot directly fall into the guide groove, even if partial cleaning liquid is considered to enter the guide groove due to turbulence, splashing and other factors, the liquid can flow out of the guide groove along the groove wall on the lower side, and the adhesive substances such as greasy dirt in the liquid can flow out along with the liquid, so that the deposition in the guide groove is avoided. Meanwhile, as the cleaning liquid contains the surfactant (detergent component), oil stains and the like are not usually directly adhered to the surface of the guide groove in a state of flowing along with the liquid, and even if the surface adhesion exists, substances adhered to the inner surface of the guide groove or dust deposited on the inner surface of the guide groove can be scraped off under the scraping action of the edge of the substrate and flow out along with the liquid or slide out of the guide groove.

The adhesion of the liquid (water) to the inner surface of the guide groove (V-groove) can be reduced by using a suitable prior art technique, the flow of the liquid can be promoted, for example, a suitable material can be selected, the surface finish can be improved, a wear-resistant hydrophobic coating can be provided on the inner surface of the guide groove (V-groove), and the like.

The upper side plate of the V-shaped plate may be longer than the lower side plate to shield falling liquid or dust, reducing or preventing liquid or dust from entering the V-shaped groove.

Any suitable form of frame may be used as a mounting base for the other parts, with corresponding formations (including corresponding connectors/brackets fixedly attached to the frame body, etc.) being provided in accordance with the mounting requirements of the other parts.

The preferred and optional technical means disclosed in the present utility model may be arbitrarily combined to form a plurality of different specific embodiments unless otherwise specified and when one preferred or optional technical means is further defined as another technical means.

Claims (10)

1. The workpiece turntable system driven by the split comprises a turntable and a turntable driving device, and is characterized in that the turntable and the turntable driving device are arranged in a split mode, a turntable is arranged on a conveying mechanism, a turntable input shaft is longitudinally arranged and positioned below a turntable base plate, the turntable input shaft is in driving connection with a turntable shaft through a gear rack mechanism, the upper end of the turntable shaft is fixedly connected with a turntable positioned above the turntable base plate, a gear of the gear rack mechanism is arranged at the lower end of the turntable shaft, a rack of the gear rack mechanism is arranged on the turntable input shaft, the turntable driving device is provided with an air/oil cylinder, an air oil cylinder is longitudinally arranged, and a piston rod of the air/oil cylinder extends out from the inner end of a cylinder body of the air/oil cylinder and is positioned on the same straight line with the turntable input shaft when the turntable is positioned at a driving station.

2. The split-driven workpiece turret system of claim 1, wherein the turret is rotatably supported above the turret base plate by thrust bearings.

3. The split-driven workpiece turntable system as claimed in claim 1, wherein the turntable base plate is provided with a vertical turntable shaft hole for the turntable shaft to pass through, the turntable shaft hole is a round hole, and the turntable shaft in the turntable shaft hole is a round shaft, and the turntable shaft and the round shaft are in rotary fit.

4. A split-driven workpiece turret system as recited in claim 1, wherein a spring return is provided between the turret shaft and the turret base plate.

5. The split-driven workpiece turret system of claim 4, wherein the spring return means employs return coil springs having opposite ends connected to the turret base plate and turret shaft, respectively.

6. A split-driven workpiece turret system as recited in claim 5, wherein the turret is provided with a limiting structure for limiting the movement of the turret shaft beyond the home position in the reset direction.

7. A split-driven workpiece turret system as recited in claim 1, wherein the turret input shaft extends either forwardly or rearwardly and the pneumatic cylinders are located on the front or rear side frames of the turret, respectively.

8. The split-driven workpiece turret system of claim 1, wherein the transfer mechanism is comprised of two front and rear chain drives arranged in parallel, the turret base plate being located above the chain drives, and the bottom surfaces of the front and rear sides thereof being fixedly connected to the chains of the two chain drives.

9. The split-driven workpiece turret system of claim 8, wherein corresponding sprockets of the two chain drive mechanisms are fixedly connected by corresponding sprocket shafts, respectively.

10. The split-driven workpiece turret system of claim 9, wherein a sprocket shaft connecting the two drive sprockets is drivingly connected to the conveyor motor.