Electrophoretic spraying limiting clamp

Abstract

The utility model discloses a kind of limit clamps for electrophoretic spraying, it is related to electrophoretic spraying field, including concave plate, mobile plate is connected in concave plate inside, electric push rod is symmetrically installed between concave plate and mobile plate, four groups of first rotation axis are fixed symmetrically in concave plate inside, profiled rod is connected with in first rotation axis side, second rotation axis and extrusion ball are connected with in profiled rod both ends, the side of second rotation axis is close to mobile plate, rotating mechanism that improve device clamping workpiece efficiency is provided in concave plate inside.The limit clamp for electrophoretic spraying, when workpiece electrophoretic spraying, first by matching mobile subassembly extrusion ball is moved to workpiece side, start electric push rod to pull mobile plate, when mobile plate moves, guide block can pull second rotation axis to move, when second rotation axis moves, profiled rod can be rotated, and guide block is synchronous in guide groove Slides, when profiled rod rotates, extrusion ball can be turned to workpiece side and clamped, clamping is stable and high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electrophoretic spraying technology, specifically to a limiting clamp for electrophoretic spraying. Background Technology

[0002] Electrophoretic spraying is a process that uses an electric field to deposit coatings, allowing water-soluble coatings to adhere evenly to the surface of conductive workpieces, forming a dense and uniform coating that improves the corrosion resistance of the workpieces. Electrophoretic spraying requires the use of limiting fixtures, which can precisely limit the position of the workpieces and prevent them from moving during the electrophoresis process, thereby improving the quality and effect of the electrophoresis.

[0003] The current fixture still has some shortcomings, such as the inconvenience of adjusting the corresponding width according to the diameter of the cylindrical workpiece.

[0004] To overcome the problem of inconvenient adjustment of fixtures according to workpiece size, Chinese patent (publication number: CN219079677U) discloses a fixture for electrophoretic coating, which includes a support plate. The support plate has two vertically distributed fixture assemblies for clamping the workpiece to be electrophoretically coated. Each fixture assembly includes a long plate with a groove at its front end. A first threaded rod is provided in the groove. The outer walls of both sides of the first threaded rod are threaded with first threaded blocks. A clamping plate is fixed at the front end of the first threaded blocks. The workpiece is clamped by using a micro motor near the top of the support plate to drive the two first threaded blocks on the first threaded rod for electrophoretic coating. Then, the coated workpiece is clamped by using a micro motor near the bottom of the support plate to drive the two clamps on the first threaded rod. The two clamps are released to electrophoretically coat the workpiece surface that was previously covered by the clamps, achieving all-round coating of the workpiece surface and greatly improving the efficiency of electrophoretic coating.

[0005] However, the fixtures currently in use still have certain shortcomings. The fixture in the above document clamps the workpiece by means of threads, which has a relatively low workpiece clamping efficiency. In addition, the operation of this device requires multiple drive components, which will increase the cost of using and producing the device. Therefore, there are certain shortcomings in its use, and the existing structure needs to be improved. Utility Model Content

[0006] The purpose of this utility model is to provide a limiting fixture for electrophoretic spraying, so as to solve the problem that the fixture mentioned in the background art has low efficiency when clamping workpieces, which affects the efficiency of electrophoretic spraying.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a limiting fixture for electrophoretic spraying, comprising a concave plate, wherein a movable plate is connected to the inner side of the concave plate.

[0008] Electric push rods are symmetrically installed between the concave plate and the moving plate. Four sets of first rotating shafts are symmetrically fixed on the inner side of the concave plate. Each of the first rotating shafts is connected to a shaped rod on its side. The two ends of the shaped rods are respectively connected to a second rotating shaft and a pressing ball. The second rotating shaft is close to the side of the moving plate. A rotating mechanism is provided on the inner side of the concave plate to improve the efficiency of the device in clamping the workpiece.

[0009] Furthermore, the rotating mechanism includes four sets of guide grooves opened at the front of the moving plate, and guide blocks are slidably connected through the guide grooves. The guide blocks are rotatably connected to the bottom of the second rotating shaft.

[0010] Furthermore, sliding blocks are fixed on both sides of the movable plate, and the sliding blocks slide through the sliding groove, which is symmetrically opened on the inner side of the concave plate.

[0011] Furthermore, both sides of the concave plate are connected to external support plates, and the side of the external support plate near the concave plate is provided with an annular groove. The external support plate is provided with a flipping structure to improve the coating effect of the workpiece.

[0012] Furthermore, the flipping structure includes a cylindrical block that slides symmetrically inside the annular groove, the cylindrical block being fixed to the outside of the concave plate, and an internal toothed ring being fixed to the outside of the concave plate near the cylindrical block.

[0013] Furthermore, a motor is installed on the outer side of the external support plate, and a pinion is connected to the output end of the motor. The pinion meshes with the side of the internal gear ring, and the internal gear ring rotates inside the external support plate through a bearing.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This electrophoretic spraying limit fixture, when the workpiece is electrophoretically sprayed, firstly the matching moving component moves the extrusion ball to the side of the workpiece, then the electric push rod is activated to pull the moving plate. When the moving plate moves, the guide block can pull the second rotating shaft to move. When the second rotating shaft moves, the shaped rod can rotate, and the guide block slides synchronously in the guide groove. When the shaped rod rotates, the extrusion ball can rotate to the side of the workpiece for clamping, which is stable and efficient.

[0015] 2. It is equipped with a squeezing ball, the shape of which can adapt to the sides of various types of workpieces, thereby improving the adaptability of the clamping tool to the workpiece and improving the stability of workpiece clamping.

[0016] 3. A sliding block is provided, which can move the moving plate by sliding the sliding block. The moving plate moves by electric push rod. This operation mode is simple and the moving plate operates with high efficiency, which can effectively improve the efficiency of the extrusion ball clamping the side of the workpiece.

[0017] 4. A columnar block is provided, which can improve the smoothness and stability of the concave plate when rotating inside the outer support plate. The columnar block can provide a certain support strength, thereby ensuring the stability of the concave plate when rotating.

[0018] 5. It is equipped with a pinion gear. When the pinion gear rotates, it can drive the internal gear ring to rotate. The pinion gear can drive the internal gear ring to rotate with less effort through the meshing ratio, which reduces the power consumption of the motor output and also reduces the cost of using the fixture. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model; Figure 3 This is an enlarged three-dimensional structural diagram of the extrusion ball of this utility model; Figure 4 This is an enlarged three-dimensional structural diagram of the sliding block of this utility model; Figure 5 This is an enlarged three-dimensional structural diagram of the cylindrical block of this utility model; Figure 6 This is an enlarged three-dimensional structural diagram of the internal toothed ring of this utility model.

[0020] In the diagram: 1. Concave plate; 2. Moving plate; 101. First rotating shaft; 102. Irregular rod; 103. Second rotating shaft; 104. Extrusion ball; 105. Guide block; 106. Guide groove; 107. Sliding groove; 108. Sliding block; 201. External support plate; 202. Annular groove; 203. Columnar block; 204. Internal gear ring; 205. Motor; 206. Pinion. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1, such as Figures 1-4 The present invention provides the following technical solution: In order to solve the problem that the efficiency of the fixture is relatively low when holding the workpiece, which affects the efficiency of electrophoretic spraying, a rotating mechanism is disclosed, including a concave plate 1, and a movable plate 2 connected to the inner side of the concave plate 1. Electric push rods are symmetrically installed between the concave plate 1 and the movable plate 2. Four sets of first rotating shafts 101 are symmetrically fixed on the inner side of the concave plate 1. Each first rotating shaft 101 is connected to a shaped rod 102 on its side. The two ends of the shaped rod 102 are respectively connected to a second rotating shaft 103 and a pressing ball 104. The second rotating shaft 103 is close to the side of the movable plate 2. A rotating mechanism is provided on the inner side of the concave plate 1 to improve the efficiency of the device in clamping the workpiece. The rotating mechanism includes four sets of guide grooves 106 opened at the front of the movable plate 2. A guide block 105 is slidably connected through the guide groove 106. The guide block 105 is rotatably connected to the bottom of the second rotating shaft 103. Sliding blocks 108 are fixed on both sides of the movable plate 2. The sliding blocks 108 slide through the sliding groove 107. The sliding groove 107 is symmetrically opened on the inner side of the concave plate 1.

[0023] When the workpiece needs to be electrophoretically coated, the fixture needs to use its own built-in moving components to move the extrusion ball 104 to the side of the workpiece. Then, activating the electric push rod can pull the moving plate 2 to move. When the moving plate 2 moves, it can drive the sliding block 108 to move. When the sliding block 108 moves, it can slide through the sliding groove 107. When the moving plate 2 slides, it can drive the guide block 105 to move. When the guide block 105 moves, it can push the second rotating shaft 103 to move. When the second rotating shaft 103 moves, it can pull the shaped rod 102 to rotate. When the shaped rod 102 rotates, it can pass through the first rotating shaft. 101 rotates inside the concave plate 1. While the irregular rod 102 rotates, the guide block 105 can slide inside the guide groove 106. When the irregular rod 102 rotates, it can drive the extrusion ball 104 to rotate. When the extrusion ball 104 rotates to the side of the workpiece, it can clamp and position it. Since the extrusion ball 104 is spherical, it has good adaptability to the shape of the workpiece. The extrusion ball 104 clamps the workpiece more efficiently and stably. In addition, the extrusion ball 104 has less contact surface with the workpiece, which can improve the effect of electrophoretic spraying of the fixture. It effectively improves the clamping efficiency of the fixture and also improves the processing efficiency of the workpiece.

[0024] Example 2, as follows Figure 1 , Figure 2 , Figure 5 and Figure 6The present invention provides the following technical solution to address the problem of uneven electrophoretic coating effect of the limiting fixture. Based on Embodiment 1, a flipping mechanism is disclosed. External support plates 201 are connected to both sides of the concave plate 1. An annular groove 202 is provided on the side of the external support plate 201 near the concave plate 1. A flipping structure to improve the coating effect of the workpiece is provided inside the external support plate 201. The flipping structure includes cylindrical blocks 203 that slide symmetrically inside the annular groove 202. The cylindrical blocks 203 are fixed to the outside of the concave plate 1. An internal gear ring 204 is also fixed to the outside of the concave plate 1 near the cylindrical blocks 203. A motor 205 is installed on the outside of the external support plate 201. A pinion 206 is connected to the output end of the motor 205. The pinion 206 meshes with the side of the internal gear ring 204. The internal gear ring 204 rotates inside the external support plate 201 through a bearing.

[0025] During the electrophoretic spraying process, the output end of the starter motor 205 can drive the pinion 206 to rotate. When the pinion 206 rotates, it can drive the internal gear ring 204 to mesh and rotate. When the internal gear ring 204 meshes and rotates, it can rotate inside the outer support plate 201 through the bearing. When the internal gear ring 204 rotates, it can drive the concave plate 1 to rotate. When the concave plate 1 rotates, it can drive the two cylindrical blocks 203 to rotate. When the two cylindrical blocks 203 rotate, they can slide inside the annular groove 202. The cylindrical blocks 203 can improve the stability of the concave plate 1 when rotating inside the outer support plate 201. The rotation of the concave plate 1 can drive the clamped workpiece to flip or adjust the angle, which can improve the uniformity of the workpiece during electrophoretic spraying.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A limiting fixture for electrophoretic spraying, comprising a concave plate (1), wherein a movable plate (2) is connected to the inner side of the concave plate (1), characterized in that: Electric push rods are symmetrically installed between the concave plate (1) and the moving plate (2). Four sets of first rotating shafts (101) are symmetrically fixed on the inner side of the concave plate (1). Each of the first rotating shafts (101) is connected to a shaped rod (102) on its side. The two ends of the shaped rod (102) are respectively connected to a second rotating shaft (103) and a pressing ball (104). The second rotating shaft (103) is close to the side of the moving plate (2). A rotating mechanism to improve the workpiece clamping efficiency of the device is provided on the inner side of the concave plate (1).

2. The limiting fixture for electrophoretic spraying according to claim 1, characterized in that: The rotating mechanism includes four sets of guide grooves (106) opened at the front of the moving plate (2), and a guide block (105) is slidably connected through the guide groove (106). The guide block (105) is rotatably connected to the bottom of the second rotating shaft (103).

3. The limiting fixture for electrophoretic spraying according to claim 1, characterized in that: The movable plate (2) has sliding blocks (108) fixed on both sides. The sliding blocks (108) slide through the sliding groove (107) inside the sliding groove (107), which is symmetrically opened on the inner side of the concave plate (1).

4. A limiting fixture for electrophoretic spraying according to claim 1, characterized in that: Both sides of the concave plate (1) are connected to external support plates (201). The side of the external support plate (201) near the concave plate (1) is provided with an annular groove (202). The external support plate (201) is provided with a flipping structure to improve the coating effect of the workpiece.

5. A limiting fixture for electrophoretic spraying according to claim 4, characterized in that: The flipping structure includes a cylindrical block (203) that slides symmetrically inside the annular groove (202). The cylindrical block (203) is fixed to the outside of the concave plate (1). An internal toothed ring (204) is also fixed to the outside of the concave plate (1) near the cylindrical block (203).

6. A limiting fixture for electrophoretic spraying according to claim 4, characterized in that: A motor (205) is installed on the outside of the outer support plate (201). A pinion (206) is connected to the output end of the motor (205). The pinion (206) is meshed with the side of the internal gear ring (204). The internal gear ring (204) rotates inside the outer support plate (201) through a bearing.

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