Workpiece rotation driving mechanism for electrostatic coating machine

Abstract

The utility model discloses a workpiece rotation driving mechanism for an electrostatic coating machine, which comprises a workpiece and two jacking cylinders, the two jacking cylinders are respectively arranged right below two ends of the workpiece, the jacking cylinders are used for jacking the workpiece to a specified position, one end of the workpiece is provided with an axial positioning cylinder, the other end of the workpiece is provided with a supporting seat, and the supporting seat is provided with a rotating shaft. A motor is installed at the top end of the supporting base, the output end of the motor is connected with an electric triangular chuck, and the electric triangular chuck is used for clamping the end of a workpiece. A workpiece is pushed to a stopping position of the coating machine through the axial positioning air cylinder, then the workpiece is jacked to a designated position through the jacking air cylinder, and then the end of the workpiece is clamped by the electric triangular chuck arranged at the output end of the motor, so that the workpiece can be stably driven by the motor to rotate; and the spraying mechanism can conveniently, efficiently and rapidly spray the surfaces of the workpieces, the efficiency of spraying the surfaces of the workpieces is conveniently improved, and the efficiency of machining the workpieces is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a workpiece rotation driving mechanism for an electrostatic coating machine. Background Technique

[0002] During the processing of aluminum alloy high-pressure composite gas cylinders, after the machining of the bottle mouth and the screwing of the connecting rod, and before the winding process, it is necessary to spray epoxy resin powder on the outer surface of the inner liner of the gas cylinder. The spraying method of the epoxy resin powder is electrostatic spraying or electrostatic coating, and an electrostatic coating equipment is required. The electrostatic coating equipment is a device that uses the electrostatic principle for coating. Its working principle is to form a high-voltage electrostatic field between the spray gun and the object to be coated, make the coating particles charged, and adsorb them on the surface of the object to be coated under the action of the electric field force to form a uniform coating. When performing electrostatic spraying, the aluminum alloy high-pressure composite gas cylinder needs to rotate slowly and continuously. The electrostatic coating equipment has a driving mechanism for driving the workpiece to rotate.

[0003] In the prior art, a Chinese patent with the patent number CN202210043285.1 discloses a transmission device of a coating machine with multiple workpiece baskets, including an annular guide rail, a support column, a workpiece basket, and a slide rail base. The lower end surface of the annular guide rail is fixedly connected to the support column, the upper end surface of the annular guide rail is slidably connected to the slide rail base, and a workpiece basket is arranged on the outer side surface of the annular guide rail. It also includes a cam plate and a transmission mechanism. The cam plate is used to drive the second spring connecting rod, and then drive the transmission mechanism to move upward to pull out the workpiece basket from the dipping tank. Then, through the limiting action of the first swing rod and the second limiting plate, the intermediate swing rod is driven to rotate, and then the workpiece basket connected to the intermediate swing rod is driven to flip. When the first spring connecting rod swings upward past the middle position, it will be pulled to the other side by the elastic force generated by the return spring to complete one flip of the workpiece basket; compared with the existing dipping device, this scheme can perform dipping in multiple groups at the same time, and different coatings can be dipped on the workpiece step by step, with high production efficiency and no need for manual flipping of the workpiece basket.

[0004] The above patent provides a rotating mechanism of a coating machine. This transmission structure is convenient for driving the movement of the workpiece basket. However, during the production and processing of gas cylinders, it is necessary to drive the gas cylinder to rotate at a constant speed through a driving mechanism. By rotating the gas cylinder at a constant speed, the spraying mechanism can evenly spray the coating on the surface of the gas cylinder. However, the existing transmission device of this coating machine cannot drive the gas cylinder to rotate at a constant speed, resulting in troublesome spraying on the surface of the gas cylinder and being unfavorable for the efficient spraying operation of the gas cylinder. Content of the Utility Model

[0005] The purpose of the utility model is to provide a workpiece rotation driving mechanism for an electrostatic coating machine, aiming to improve the problem that the existing transmission device of this coating machine cannot drive the gas cylinder to rotate at a constant speed, resulting in troublesome spraying on the surface of the gas cylinder and being unfavorable for the efficient spraying of the gas cylinder.

[0006] The present utility model is realized as follows:

[0007] A workpiece rotation driving mechanism for an electrostatic coating machine, comprising a workpiece, and further comprising two lifting cylinders which are respectively arranged directly below the two ends of the workpiece. The lifting cylinders are used to lift the workpiece to a specified position. One end of the workpiece is provided with an axial positioning cylinder, and the other end is provided with a support seat. A motor is installed at the top of the support seat, and the output end of the motor is connected with an electric three-jaw chuck which is used to clamp the end of the workpiece.

[0008] Preferably, both ends of the workpiece are provided with end shafts, and a connection head is provided on the end shaft close to the motor.

[0009] Preferably, fixing feet are symmetrically arranged on both sides of the bottom surface of the lifting cylinder, and a plurality of fixing holes are evenly arranged on the fixing feet; a lifting rod is arranged at the output end of the lifting cylinder, a limit chuck is arranged at the top of the lifting rod, a limit bayonet is arranged inside the limit chuck, the limit bayonet is in a V shape, and two rows of rollers are symmetrically arranged on both sides inside the limit bayonet.

[0010] Preferably, the bottom surface of the support seat is provided with feet, and a plurality of bolt holes are provided on the feet.

[0011] Preferably, a transmission is arranged at the output end of the motor, and the electric three-jaw chuck is installed at the output end of the transmission; a plurality of clamping feet are evenly arranged on the electric three-jaw chuck and are used to clamp the workpiece; a wire is arranged at the rear end of the motor, and an electric plug is arranged at the end of the wire.

[0012] Preferably, a connection foot is arranged at the rear end of the axial positioning cylinder, and a plurality of positioning holes are provided on the connection foot; a push rod is arranged at the output end of the axial positioning cylinder, and a push plate is arranged at the end of the push rod facing the outside.

[0013] Preferably, it further comprises a position adjusting cylinder. An installation hole is arranged inside the upper part of the support seat, the position adjusting cylinder is installed inside the installation hole and is fixed on the support seat by bolts; a chute is arranged at the top of the support seat, an installation foot is arranged at the bottom end of the motor, a sliding rod is arranged on the bottom surface of the installation foot and is clamped inside the chute, a connecting plate is arranged at the bottom of the transmission at the output end of the motor, a connecting hole is arranged at the bottom end of the connecting plate, a telescopic rod is arranged at the output end of the position adjusting cylinder, a limit plate is arranged at the end of the telescopic rod, a stud is arranged in the middle of the limit plate, the stud passes through the connecting hole, and a compression cap is arranged at one end of the stud passing through the connecting hole; an end plate is arranged at the rear end of the position adjusting cylinder, and through holes are arranged at the corners of the end plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The utility model pushes the workpiece to the stop position of the coating machine through the axial positioning cylinder, then the lifting cylinder lifts the workpiece to the specified position, and then the electric three-jaw chuck arranged at the output end of the motor clamps the end of the workpiece. In this way, the motor can stably drive the workpiece to rotate, facilitating the spraying mechanism to spray the surface of the workpiece efficiently and quickly, improving the spraying efficiency of the workpiece surface, and indirectly improving the processing efficiency of the workpiece.

[0016] 2. In the driving structure of the utility model, since the top of the lifting cylinder is provided with a limit chuck, and rollers are arranged inside the limit chuck, the friction between the lifting cylinder and the workpiece can be reduced through the rollers, thereby avoiding wear when the workpiece rotates. Brief Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the utility model;

[0018] Figure 2 is the structural schematic diagram of the workpiece of the utility model;

[0019] Figure 3 is the structural schematic diagram of the lifting cylinder of the utility model;

[0020] Figure 4 is the structural schematic diagram of the support seat of the utility model;

[0021] Figure 5 is the structural schematic diagram of the motor of the utility model;

[0022] Figure 6 is the structural schematic diagram of the position adjustment cylinder of the utility model;

[0023] Figure 7 is the structural schematic diagram of the axial positioning cylinder of the utility model.

[0024] In the figure: 1. Workpiece; 11. End shaft; 12. Connector; 2. Lifting cylinder; 21. Fixed foot; 22. Fixed hole; 23. Lifting rod; 24. Limit chuck; 25. Limit bayonet; 26. Roller; 3. Support seat; 31. Bottom foot; 32. Bolt hole; 33. Mounting hole; 34. Slide groove; 4. Motor; 41. Transmission; 42. Electric three-jaw chuck; 43. Clamping foot; 44. Connecting plate; 45. Connecting hole; 46. Mounting foot; 47. Slide rod; 48. Wire; 49. Power connection plug; 5. Position adjustment cylinder; 51. Expansion rod; 52. Limit plate; 53. Stud; 54. Compression cap; 55. End plate; 56. Perforation; 6. Axial positioning cylinder; 61. Connecting foot; 62. Positioning hole; 63. Thrust rod; 64. Thrust plate. Detailed Embodiment

[0025] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] The following will be further described in conjunction with the accompanying drawings and specific embodiments:

[0027] Embodiment 1

[0028] As Figure 1 shown, a workpiece rotation driving mechanism for an electrostatic coating machine includes a workpiece 1 and two jacking cylinders 2. The two jacking cylinders 2 are respectively arranged directly below the two ends of the workpiece 1. The jacking cylinder 2 is used to jack the workpiece 1 to a specified position. An axial positioning cylinder 6 is provided at one end of the workpiece 1, and the axial positioning cylinder 6 is used to push the craftsman to a specified position. A support base 3 is provided at the other end. A motor 4 is installed at the top of the support base 3. The support base 3 is used to install the motor 4 to facilitate the motor 4 to drive the workpiece 1 to rotate. The output end of the motor 4 is connected with an electric three-jaw chuck 42, and the electric three-jaw chuck 42 is used to clamp the end of the workpiece 1.

[0029] As Figure 2 shown, both ends of the workpiece 1 are provided with end shafts 11, and a connection head 12 is provided on the end shaft 11 close to the motor 4; the cooperation of the end shaft 11 and the connection head 12 is the structure of the workpiece 1 itself, and at the same time, this structure also facilitates the connection between the workpiece 1 and the output end of the motor 4.

[0030] As Figure 3 shown, fixed feet 21 are symmetrically arranged on both sides of the bottom surface of the jacking cylinder 2, and a plurality of fixing holes 22 are evenly arranged on the fixed feet 21; the cooperation of the fixed feet 21 and the fixing holes 22 is to facilitate the fixation of the position of the jacking cylinder 2 through bolts. A lifting rod 23 is provided at the output end of the jacking cylinder 2, and the lifting rod 23 is used to jack the workpiece 1 to facilitate the lifting of the workpiece 1. A limit chuck 24 is provided at the top of the lifting rod 23, and the limit chuck 24 is convenient for clamping at both ends of the workpiece 1. A limit notch 25 is provided inside the limit chuck 24, and the limit notch 25 is V-shaped. This limit notch 25 is convenient for the limit chuck 24 to stably clamp on the end shafts 11 at both ends of the workpiece 1. Two rows of rollers 26 are symmetrically arranged on both sides inside the limit notch 25, and the rollers 26 facilitate reducing the friction between the limit chuck 24 and the workpiece 1.

[0031] As Figure 4As shown in the figure, the bottom surface of the support base 3 is provided with feet 31, and a plurality of bolt holes 32 are provided on the feet 31; the cooperation of the feet 31 and the bolt holes 32 facilitates the fixation of the support base 3 through bolts and the use of the support base 3.

[0032] As Figure 5 shown in the figure, a transmission 41 is provided at the output end of the motor 4, and an electric three-jaw chuck 42 is installed at the output end of the transmission 41; the transmission 41 is used to transmit power to the electric three-jaw chuck 42 to facilitate driving the electric three-jaw chuck 42 to rotate. A plurality of jaws 43 are evenly provided on the electric three-jaw chuck 42, and the jaws 43 are used to clamp the workpiece 1; a wire 48 is provided at the rear end of the motor 4, and an electric plug 49 is provided at the end of the wire 48; the wire 48 and the electric plug 49 facilitate the connection of the motor 4 to the control system of the coating machine.

[0033] As Figure 7 shown in the figure, a connecting leg 61 is provided at the rear end of the axial positioning cylinder 6, and a plurality of positioning holes 62 are provided on the connecting leg 61; the cooperation of the connecting leg 61 and the positioning holes 62 facilitates the fixation of the axial positioning cylinder 6 through bolts. A push rod 63 is provided at the output end of the axial positioning cylinder 6, and a push plate 64 is provided at the end of the push rod 63 facing the outside; the cooperation of the push rod 63 and the push plate 64 facilitates resisting the end of the cylinder and pushing the gas cylinder to a specified position.

[0034] Working principle: When the workpiece 1 reaches the powder room, the product is positioned with the fixed end side as the reference. After the product reaches the spray booth, the sensor signal lights up, the conveyor brake stops, and the axial positioning cylinder 6 pushes one end of the product so that the other end face of the product reaches the stop position of the coating machine. After reaching, the cylinder retracts; then the lifting cylinder 2 pushes the product away from the conveyor to the powder spraying position near the end of the bottle mouth. The electric three-jaw chuck 42 clamps the end of the workpiece 1, and then drives the gas cylinder to rotate at a constant speed so that the powder can be evenly sprayed on the entire surface of the gas cylinder during powder spraying. Compared with the prior art, in this application, the axial positioning cylinder 6 is used to push the workpiece 1 to the stop position of the coating machine, then the lifting cylinder 2 lifts the workpiece 1 to the specified position, and then the electric three-jaw chuck 42 provided at the output end of the motor 4 clamps the end of the workpiece 1. In this way, the motor 4 can stably drive the workpiece 1 to rotate, facilitating the spraying mechanism to efficiently and quickly spray the surface of the workpiece 1, improving the efficiency of spraying the surface of the workpiece 1, and indirectly improving the processing efficiency of the workpiece 1.

[0035] Embodiment 2

[0036] As Figure 1As shown in the figure, a workpiece rotation drive mechanism for an electrostatic coating machine includes a workpiece 1 and two lifting cylinders 2. The two lifting cylinders 2 are respectively arranged directly below both ends of the workpiece 1. The lifting cylinders 2 are used to lift the workpiece 1 to a specified position. An axial positioning cylinder 6 is provided at one end of the workpiece 1, and the axial positioning cylinder 6 is used to push the workpiece to a specified position. A support base 3 is provided at the other end. A motor 4 is installed at the top of the support base 3. The support base 3 is used to install the motor 4, facilitating the motor 4 to drive the workpiece 1 to rotate. The output end of the motor 4 is connected to an electric three-jaw chuck 42, and the electric three-jaw chuck 42 is used to clamp the end of the workpiece 1.

[0037] As Figure 2 shown in the figure, both ends of the workpiece 1 are provided with end shafts 11, and a connection head 12 is provided on the end shaft 11 close to the motor 4; the cooperation of the end shaft 11 and the connection head 12 is the structure of the workpiece 1 itself, and at the same time, this structure also facilitates the connection between the workpiece 1 and the output end of the motor 4.

[0038] As Figure 3 shown in the figure, fixed feet 21 are symmetrically provided on both sides of the bottom surface of the lifting cylinder 2, and a plurality of fixing holes 22 are evenly provided on the fixed feet 21; the cooperation of the fixed feet 21 and the fixing holes 22 is to facilitate fixing the position of the lifting cylinder 2 through bolts. The output end of the lifting cylinder 2 is provided with a lifting rod 23, and the lifting rod 23 is used to lift the workpiece 1, facilitating the lifting of the workpiece 1. A limit chuck 24 is provided at the top of the lifting rod 23, and the limit chuck 24 is convenient for clamping at both ends of the workpiece 1. A limit bayonet 25 is provided inside the limit chuck 24, and the limit bayonet 25 is V-shaped. This limit bayonet 25 is convenient for the limit chuck 24 to stably clamp on the end shafts 11 at both ends of the workpiece 1. Two rows of rollers 26 are symmetrically provided on both sides inside the limit bayonet 25, and the rollers 26 facilitate reducing the friction between the limit chuck 24 and the workpiece 1.

[0039] As Figure 4 shown in the figure, the bottom surface of the support base 3 is provided with a base foot 31, and a plurality of bolt holes 32 are provided on the base foot 31; the cooperation of the base foot 31 and the bolt holes 32 is to facilitate fixing the support base 3 through bolts, facilitating the use of the support base 3.

[0040] As Figure 5 shown in the figure, a transmission 41 is provided at the output end of the motor 4, and the electric three-jaw chuck 42 is installed at the output end of the transmission 41; the transmission 41 is used to transmit power to the electric three-jaw chuck 42, facilitating driving the electric three-jaw chuck 42 to rotate. A plurality of clamping feet 43 are evenly provided on the electric three-jaw chuck 42, and the clamping feet 43 are used to clamp the workpiece 1; a wire 48 is provided at the rear end of the motor 4, and an electric plug 49 is provided at the end of the wire 48; the wire 48 and the electric plug 49 are to facilitate connecting the motor 4 to the control system of the coating machine.

[0041] As Figure 7As shown in the figure, a connecting foot 61 is provided at the rear end of the axial positioning cylinder 6, and a plurality of positioning holes 62 are provided on the connecting foot 61; the cooperation of the connecting foot 61 and the positioning holes 62 facilitates the fixation of the axial positioning cylinder 6 through bolts. A push rod 63 is provided at the output end of the axial positioning cylinder 6, and a push plate 64 is provided at one end of the push rod 63 facing the outside; the cooperation of the push rod 63 and the push plate 64 facilitates abutting against the end of the cylinder and pushing the gas cylinder to a specified position.

[0042] As Figure 6 shown in the figure, it further includes a position adjusting cylinder 5. An installation hole 33 is provided in the upper part of the support seat 3, and the position adjusting cylinder 5 is installed inside the installation hole 33. The installation hole 33 facilitates the installation of the adjusting cylinder and ensures the stability of the adjusting cylinder. And the position adjusting cylinder 5 is fixed to the support seat 3 through bolts. A sliding groove 34 is provided at the top end of the support seat 3, and the support seat 3 facilitates the stable support of the motor 4. An installation foot 46 is provided at the bottom end of the motor 4, and a sliding rod 47 is provided on the bottom surface of the installation foot 46. The sliding rod 47 is engaged inside the sliding groove 34. The cooperation of the bottom end of the installation foot 46 and the sliding rod 47 facilitates the sliding connection with the support seat 3. A connecting plate 44 is provided at the bottom of the output end of the motor 4, and a connecting hole 45 is provided at the bottom end of the connecting plate 44. The connecting plate 44 and the connecting hole 45 facilitate the connection with the output end of the position adjusting cylinder 5. An expansion rod 51 is provided at the output end of the position adjusting cylinder 5, a limiting plate 52 is provided at the end of the expansion rod 51, and a stud 53 is provided in the middle of the limiting plate 52. The stud 53 passes through the connecting hole 45, and a compression cap 54 is provided at one end of the stud 53 passing through the connecting hole 45; this structure facilitates the output end of the position adjusting cylinder 5 to drive the motor 4 for position adjustment, and facilitates driving the motor 4 to move towards the workpiece 1 when the motor 4 cannot clamp the workpiece 1, so that the electric three-jaw chuck 42 at the output end of the motor 4 can stably clamp the workpiece 1; a end plate 55 is provided at the rear end of the position adjusting cylinder 5, and a perforation 56 is provided at the corner of the end plate 55; the end plate 55 and the perforation 56 are used to cooperate with bolts to fix the position adjusting cylinder 5 to the support seat 3.

[0043] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A workpiece rotation driving mechanism for an electrostatic coating machine, comprising a workpiece (1), characterized in that, It also includes two lifting cylinders (2), and the two lifting cylinders (2) are respectively arranged directly below both ends of the workpiece (1). The lifting cylinders (2) are used to lift the workpiece (1) to a specified position. One end of the workpiece (1) is provided with an axial positioning cylinder (6), and the other end is provided with a support base (3). A motor (4) is installed at the top of the support base (3), and the output end of the motor (4) is connected to an electric three-jaw chuck (42). The electric three-jaw chuck (42) is used to clamp the end of the workpiece (1).

2. The workpiece rotation driving mechanism for an electrostatic coating machine according to claim 1, characterized in that, Both ends of the workpiece (1) are provided with end shafts (11), and a connection head (12) is provided on the end shaft (11) close to the motor (4).

3. The workpiece rotation driving mechanism for an electrostatic coating machine according to claim 1, characterized in that, On both sides of the bottom surface of the lifting cylinder (2), fixing feet (21) are symmetrically provided, and a plurality of fixing holes (22) are evenly provided on the fixing feet (21); a lifting rod (23) is provided at the output end of the lifting cylinder (2), a limit chuck (24) is provided at the top of the lifting rod (23), a limit bayonet (25) is provided inside the limit chuck (24), the limit bayonet (25) is V-shaped, and two rows of rollers (26) are symmetrically provided on both sides inside the limit bayonet (25).

4. The workpiece rotation driving mechanism for an electrostatic coating machine according to claim 1, characterized in that, The bottom surface of the support base (3) is provided with a base foot (31), and a plurality of bolt holes (32) are provided on the base foot (31).

5. The workpiece rotation driving mechanism for an electrostatic coating machine according to claim 1, characterized in that, A transmission (41) is provided at the output end of the motor (4), and the electric three-jaw chuck (42) is installed at the output end of the transmission (41); a plurality of clamping feet (43) are evenly provided on the electric three-jaw chuck (42), and the clamping feet (43) are used to clamp the workpiece (1); a wire (48) is provided at the rear end of the motor (4), and an electric plug (49) is provided at the end of the wire (48).

6. The workpiece rotation driving mechanism for an electrostatic coating machine according to claim 1, wherein, A connection foot (61) is provided at the rear end of the axial positioning cylinder (6), and a plurality of positioning holes (62) are provided on the connection foot (61); a push rod (63) is provided at the output end of the axial positioning cylinder (6), and a push plate (64) is provided at the end of the push rod (63) facing the outside.

7. A workpiece rotation driving mechanism for an electrostatic coating machine according to any one of claims 1-6, characterized in that, It further includes a position adjusting cylinder (5). An installation hole (33) is provided in the upper part of the support base (3). The position adjusting cylinder (5) is installed inside the installation hole (33), and the position adjusting cylinder (5) is fixed to the support base (3) by bolts. A sliding groove (34) is provided at the top of the support base (3). An installation foot (46) is provided at the bottom end of the motor (4). A sliding rod (47) is provided on the bottom surface of the installation foot (46). The sliding rod (47) is engaged inside the sliding groove (34). A connecting plate (44) is provided at the bottom of the transmission (41) at the output end of the motor (4). A connecting hole (45) is provided at the bottom end of the connecting plate (44). A telescopic rod (51) is provided at the output end of the position adjusting cylinder (5). A limiting plate (52) is provided at the end of the telescopic rod (51). A stud (53) is provided in the middle of the limiting plate (52). The stud (53) passes through the connecting hole (45). A pressing cap (54) is provided at one end of the stud (53) passing through the connecting hole (45). An end plate (55) is provided at the rear end of the position adjusting cylinder (5). A through hole (56) is provided at the corner of the end plate (55).

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