Workpiece placing rack for electrostatic spraying

Abstract

The utility model relates to the field of electrostatic spraying, in particular to a workpiece placing rack for electrostatic spraying, which comprises a mounting plate, a driving motor mounted in the middle of the lower end of the mounting plate, and a placing mechanism. When the device works, a workpiece to be machined is placed on the placing frame, then the pull rod is pushed to enable the guide disc to rotate, and in the rotating process of the guide disc, through sliding connection of the sliding rod and the sliding groove, the guide groove can pull the rotating wheel, the sliding rod and the top plate to get close to the center of the device after the guide disc rotates; when the workpiece is tightened, a driving device of the locking structure can be started to enable the locking structure to abut against the lower end face of the guide disc, so that the guide disc is difficult to rotate, and the workpiece is clamped between the top plate and the vertical plate structure of the placing frame. In this way, when the driving motor of the device drives the workpiece to rotate, the situation that the workpiece is loosened or falls off can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of electrostatic spraying, in particular to a workpiece placement rack for electrostatic spraying. Background Art

[0002] Electrostatic spraying is a coating method that uses the principle of corona discharge to charge atomized paint negatively under the influence of a high-voltage DC electric field. This negative charge then adheres to the positively charged surface of the substrate, discharging the negative charge. Electrostatic spraying equipment consists of a spray gun, a spray cup, and a high-voltage power supply. Electrostatic spraying requires a workpiece support rack to secure the workpiece.

[0003] A search of the patent document with publication number CN221063141U reveals "a workpiece placement rack for electrostatic spraying, wherein the workpiece body is clamped between a movable clamping block and a fixed clamping block. The movable clamping block on the slider can cooperate with the fixed clamping block under the elastic action of a spring to clamp workpieces of different lengths. Simultaneously, when the rotating shaft rotates, the spline shaft and the spline groove of the lower sleeve of the turntable mate with each other, causing the turntable to rotate, and thus the workpiece body to rotate accordingly, thereby improving the subsequent spraying efficiency."

[0004] When the above device is in operation, it is necessary to use a motor to drive the upper half of the structure where the workpiece is placed to rotate, which will generate a certain centrifugal force during rotation. The above device uses the elasticity of the spring to drive the mobile clamping block to clamp the workpiece. After the motor drives the turntable to rotate, the clamping of the mobile clamping block on the workpiece is likely to loosen, which may easily cause the workpiece to fall off or slightly deviate. Utility Model Content

[0005] The purpose of the utility model is to provide a workpiece placement rack for electrostatic spraying in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A workpiece placement rack for electrostatic spraying, comprising a mounting plate, a driving motor mounted in the middle of the lower end of the mounting plate, and a placement mechanism;

[0008] The placement mechanism includes a rotating frame, which is fixed to the output end of the driving motor. Multiple placement frames are fixed to the upper end of the rotating frame. A slide groove is provided in the middle of the placement frame. The rotating frame is provided with a through groove of the same size corresponding to each slide groove. A guide plate is rotatably connected inside the rotating frame, and a plurality of guide grooves are provided on the outer ring of the guide plate. A rotating wheel is provided inside the guide groove. A sliding rod is rotatably connected in the middle of the rotating wheel, and the sliding rod is slidably connected to the slide groove. A top plate is fixed to the upper end of the slide rod, and two pull rods are fixed to the lower end of the guide plate. Locking structures are fixed to the lower ends of both sides of the rotating frame.

[0009] Preferably, the placement rack is L-shaped, and the top plate and corresponding end surfaces of the placement rack vertical plate structure are both provided with rubber layers.

[0010] Preferably, two protrusions are provided at the lower end of the top plate, and the two protrusions at the lower end of the top plate are slidably connected to the placement rack.

[0011] Preferably, the guide groove is arranged in an arc shape, and the width of the guide groove corresponds to the size of the rotating wheel.

[0012] Preferably, one end of the guide groove is located at the outer ring of the guide disc, and the other end of the guide groove is located at the inner ring of the guide disc.

[0013] Preferably: the locking structure includes a lower extension frame, which is fixed to the lower end of the rotating frame, a small motor is installed inside the rotating frame, a screw is fixed to the output end of the small motor, and the screw is rotatably connected to the lower extension frame, a lifting plate is threadedly connected to the outer periphery of the screw, and the lifting plate is slidably connected to the lower extension frame, a locking block is fixed to the upper end of the lifting plate, and a rubber layer is provided on the upper end surface of the locking block.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] When the device is in operation, the workpiece to be processed is first placed on the placement rack, and then the pull rod is pushed to rotate the guide plate. During the rotation of the guide plate, the sliding connection between the slide rod and the slide groove is achieved. After the guide plate rotates, the guide groove can pull the rotating wheel, the slide rod and the top plate closer to the center of the device, so that the top plate tightens the workpiece between the top plate and the vertical plate structure of the placement rack. When the workpiece is tightened, the driving device of the locking structure can be started to make the locking structure press the lower end surface of the guide plate, making it difficult for the guide plate to rotate. In this way, the workpiece can be prevented from loosening or falling off when the driving motor of the device drives the workpiece to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a structural schematic diagram of a workpiece placement rack for electrostatic spraying described in the utility model;

[0018] Figure 2 This is a structural diagram of a rotating frame in a workpiece placement rack for electrostatic spraying described in the utility model;

[0019] Figure 3This is a structural diagram of a guide plate in a workpiece placement rack for electrostatic spraying according to the present invention;

[0020] Figure 4 This is a structural diagram of a slide bar in a workpiece placement rack for electrostatic spraying according to the present invention;

[0021] Figure 5 It is a main sectional view of a lower extension frame in an electrostatic spraying workpiece placement rack described in the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Mounting plate; 11. Base frame; 12. Fixing bolts; 2. Drive motor; 21. Rotating frame; 22. Placement frame; 23. Slide; 24. Guide plate; 25. Guide groove; 26. Rotating wheel; 27. Slide rod; 28. Top plate; 29. Pull rod; 210. Lower extension frame; 211. Small motor; 212. Screw; 213. Lifting plate; 214. Locking block. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-4As shown, a workpiece placement rack for electrostatic spraying includes a mounting plate 1, a driving motor 2 is installed in the middle of the lower end of the mounting plate 1, and also includes a placement mechanism.

[0028] A base frame 11 is fixed to the lower end of the mounting plate 1 , and a plurality of fixing bolts 12 are provided in the middle of the base frame 11 ; the device can be fixed to a suitable position by the fixing bolts 12 .

[0029] The placement mechanism includes a rotating frame 21, which is fixed to the output end of the driving motor 2. A plurality of placement frames 22 are fixed to the upper end of the rotating frame 21. A slide groove 23 is provided in the middle of the placement frame 22. The rotating frame 21 is provided with a through groove of the same size corresponding to the position of each slide groove 23. A guide plate 24 is rotatably connected to the inside of the rotating frame 21. A plurality of guide grooves 25 are provided on the outer ring of the guide plate 24. One end of the guide groove 25 is located on the outer ring of the guide plate 24, and the other end of the guide groove 25 is located on the inner ring of the guide plate 24. A runner 26 is provided inside the guide groove 25. The guide groove 25 is arranged in an arc shape, and the width of the guide groove 25 corresponds to the size of the runner 26. A slide rod 27 is rotatably connected to the middle of the runner 26, and the slide rod 27 is slidably connected to the slide groove 23. The upper end of the slide rod 27 is fixed There is a top plate 28, and the placement rack 22 is L-shaped. The corresponding end faces of the top plate 28 and the vertical plate structure of the placement rack 22 are provided with a rubber layer. Two protrusions are provided at the lower end of the top plate 28, and the two protrusions at the lower end of the top plate 28 are slidably connected to the placement rack 22. Two pull rods 29 are fixed to the lower end of the guide plate 24, and the lower ends of both sides of the rotating rack 21 are fixed with locking structures; the workpiece to be processed is placed on the placement rack 22, and then the pull rod 29 is pushed to rotate the guide plate 24. During the rotation of the guide plate 24, the sliding connection between the slide bar 27 and the slide groove 23 is achieved. After the guide plate 24 rotates, the guide groove 25 can pull the rotating wheel 26, the slide bar 27 and the top plate 28 to the center of the device, so that the top plate 28 tightens the workpiece between the top plate 28 and the vertical plate structure of the placement rack 22.

[0030] The locking structure includes a lower extension frame 210, which is fixed to the lower end of the rotating frame 21, and a small motor 211 is installed inside the rotating frame 21, and a screw 212 is fixed to the output end of the small motor 211, and the screw 212 is rotatably connected to the lower extension frame 210, and the outer periphery of the screw 212 is threadedly connected to a lifting plate 213, and the lifting plate 213 is slidably connected to the lower extension frame 210, and a locking block 214 is fixed to the upper end of the lifting plate 213, and the upper end surface of the locking block 214 is provided with a rubber layer; through the threaded connection between the screw 212 and the lifting plate 213 and the sliding connection between the lifting plate 213 and the lower extension frame 210, when the small motor 211 drives the screw 212 to rotate, the lifting plate 213 can drive the locking block 214 to rise, so that the locking block 214 can tightly support the lower end surface of the guide plate 24.

[0031] Working principle: When the device is in operation, the workpiece to be processed is first placed on the placement rack 22, and then the pull rod 29 is pushed to rotate the guide plate 24. During the rotation of the guide plate 24, the sliding connection between the slide bar 27 and the slide groove 23 enables the guide plate 24 to rotate so that the guide groove 25 can pull the rotating wheel 26, the slide bar 27 and the top plate 28 toward the center of the device, so that the top plate 28 tightens the workpiece between the top plate 28 and the vertical plate structure of the placement rack 22. When the workpiece is tightened, the small motor 211 is started, and through the threaded connection between the screw 212 and the lifting plate 213 and the sliding connection between the lifting plate 213 and the lower extension frame 210, when the small motor 211 drives the screw 212 to rotate, the lifting plate 213 can drive the locking block 214 to rise, so that the locking block 214 can tightly support the lower end surface of the guide plate 24.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A workpiece placement rack for electrostatic spraying, comprising a mounting plate (1), wherein a drive motor (2) is mounted in the middle of the lower end of the mounting plate (1), characterized in that: Also includes placement mechanism; The placement mechanism comprises a rotating frame (21), wherein the rotating frame (21) is fixed to the output end of the driving motor (2), a plurality of placement frames (22) are fixed on the upper end of the rotating frame (21), a slide groove (23) is provided in the middle of the placement frames (22), and a through groove of the same size is provided on the rotating frame (21) corresponding to the position of each slide groove (23), a guide plate (24) is rotatably connected inside the rotating frame (21), a plurality of guide grooves (25) are provided on the outer ring of the guide plate (24), a rotating wheel (26) is provided inside the guide groove (25), a sliding rod (27) is rotatably connected in the middle of the rotating wheel (26), and the sliding rod (27) is slidably connected to the slide groove (23), a top plate (28) is fixed on the upper end of the sliding rod (27), two pull rods (29) are fixed on the lower end of the guide plate (24), and a locking structure is fixed on the lower ends of both sides of the rotating frame (21).

2. The workpiece placement rack for electrostatic spraying according to claim 1, characterized in that: The placement rack (22) is L-shaped, and the top plate (28) and the corresponding end surfaces of the vertical plate structure of the placement rack (22) are both provided with rubber layers.

3. The workpiece placement rack for electrostatic spraying according to claim 1, characterized in that: Two protrusions are provided at the lower end of the top plate (28), and the two protrusions at the lower end of the top plate (28) are slidably connected to the placement rack (22).

4. The workpiece placement stand for electrostatic spraying according to claim 1, characterized in that: The guide groove (25) is arranged in an arc shape, and the width of the guide groove (25) corresponds to the size of the rotating wheel (26).

5. The workpiece placement stand for electrostatic spraying according to claim 1, characterized in that: One end of the guide groove (25) is located at the outer ring of the guide plate (24), and the other end of the guide groove (25) is located at the inner ring of the guide plate (24).

6. The workpiece placement stand for electrostatic spraying according to claim 1, characterized in that: The locking structure comprises a lower extension frame (210), wherein the lower extension frame (210) is fixed to the lower end of the rotating frame (21), a small motor (211) is installed inside the rotating frame (21), a screw rod (212) is fixed to the output end of the small motor (211), and the screw rod (212) is rotatably connected to the lower extension frame (210), a lifting plate (213) is threadedly connected to the outer periphery of the screw rod (212), and the lifting plate (213) is slidably connected to the lower extension frame (210), a locking block (214) is fixed to the upper end of the lifting plate (213), and a rubber layer is provided on the upper end surface of the locking block (214).

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