Multi-angle rotary plastic workpiece spraying fixture

Abstract

The utility model discloses a multi -angle rotary formula plastic work piece spraying clamp, including bottom support, adjustable high support, spraying platform, lateral adjusting structure, rotating structure, spraying clamp and motor chuck, and adjustable high support height adjustment is realized to bottom support through adjusting hole and locking bolt, and lateral adjusting structure utilizes adjusting hand wheel, ball screw and guide slide rail, and cooperates bolt set and positioning key groove, realizes accurate lateral displacement of rotating structure, and rotating structure passes through drive motor, worm and worm gear drive, and combines with spline, key connection, and drives multi -angle rotation of spraying clamp, and the outside of spraying clamp is equipped with the outer cover of buckle connection and is used for protection, and is fastened and is connected through the thread of motor chuck and realizes work piece clamping. The clamp can adjust height and position flexibly, realizes work piece multi -angle even spraying, has high accuracy, high stability and strong universality, and effectively promotes plastic work piece spraying quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic workpiece processing technology, specifically a multi-angle rotating plastic workpiece spraying fixture. Background Technology

[0002] Existing spraying fixtures have several shortcomings in the plastic workpiece coating process: 1. Traditional plastic workpiece spraying fixtures have a fixed height, making it difficult to adapt to different specifications of spraying equipment and workpieces. When changing workpieces or spraying equipment with different height requirements, the entire spraying system needs to be readjusted, which is time-consuming, labor-intensive, and reduces production efficiency; 2. Traditional plastic workpiece spraying fixtures cannot achieve multi-angle adjustment, such as horizontal and angular adjustment, which leads to uneven spraying and affects coating quality and appearance; 3. Many traditional spraying fixtures are designed for workpieces of specific shapes and sizes, resulting in poor versatility. When producing various types of plastic workpieces, frequent fixture changes are required, increasing production costs and management difficulty.

[0003] Therefore, it is necessary to design a multi-angle rotating plastic workpiece spraying fixture to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a multi-angle rotating plastic workpiece spraying fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-angle rotating plastic workpiece spraying fixture includes a bottom support, an adjustable height support fixedly installed on the top of the bottom support by multiple locking bolts, a spraying platform fixedly installed on the top of the adjustable height support, a lateral adjustment structure installed above the spraying platform, a rotating structure connected to the lateral adjustment structure, a spraying fixture connected above the rotating structure, and an electric chuck installed above the spraying fixture.

[0007] The lateral adjustment structure includes an adjustment handwheel located on one side, the output end of which is connected to a ball screw, and a screw nut seat is drivenly connected to the ball screw. The top of the screw nut seat is fixedly connected to the bottom of the rotating structure.

[0008] The rotating structure includes a rotating shaft connected to the inner bottom end of the spraying fixture. A worm wheel is connected to the bottom of the rotating shaft, and a worm is driven to the outer side of the worm wheel. A drive motor is fixedly connected to one side of the bearing of the worm, and the worm wheel is sleeved and installed on the outer side of the bearing located above the bottom of the rotating structure.

[0009] As a preferred embodiment of this utility model, the bottom bracket has multiple adjustment holes evenly distributed on it, with a spacing of 20mm between the adjustment holes. By inserting the locking bolt into different adjustment holes, the height of the adjustable bracket can be precisely adjusted within a certain range.

[0010] As a preferred embodiment of this utility model, the top of the adjustable support is fixed to the spraying platform by welding. The welding method is full welding, and the weld width is uniform and not less than 5mm to ensure the connection strength and enable the spraying platform to stably support the structure above.

[0011] As a preferred embodiment of this utility model, the top of the lead screw nut seat is connected to the bottom of the rotating structure by a bolt group, the number of bolt groups is not less than 4 and they are symmetrically distributed. A positioning keyway is also provided on the connection surface. The positioning keyway cooperates with the positioning key to prevent circumferential rotation between the lead screw nut seat and the rotating structure.

[0012] As a preferred embodiment of this utility model, the spraying platform is provided with a guide slide rail, the lead screw nut seat is connected to the guide slide rail by a slider, the slider is fixed to the bottom of the lead screw nut seat as a whole, the fitting accuracy of the slider on the guide slide rail is H7 / g6, and the guide slide rail is fixed to the spraying platform by countersunk bolts to ensure the stability and straightness of the lateral adjustment structure during movement.

[0013] As a preferred embodiment of this utility model, the rotating shaft is connected to the bottom of the spraying fixture by a spline. The spline has an involute tooth profile, and the length of the spline is adapted to the depth of the rotating shaft inserted into the spraying fixture, ensuring reliable torque transmission and coaxiality between the rotating shaft and the spraying fixture.

[0014] As a preferred embodiment of this utility model, the worm gear and the rotating shaft are connected by a flat key. The width and height of the flat key are designed according to the dimensions of the rotating shaft, and the length of the flat key is 2 / 3 of the length of the corresponding shaft segment of the rotating shaft, ensuring that the worm gear and the rotating shaft rotate synchronously. The worm is connected to the output shaft of the drive motor by a coupling. The coupling is an elastic coupling, which can compensate for the coaxiality deviation between the worm and the output shaft of the drive motor, and also has the functions of buffering and vibration absorption, reducing the impact and vibration during the transmission process. The outer ring of the bearing and the mounting hole at the bottom of the rotating structure adopt an interference fit, with the interference controlled between 0.01-0.03mm. The inner ring and the worm gear have a shoulder with a height of 3-5mm, which is used to axially position the bearing and ensure stable operation of the bearing.

[0015] As a preferred embodiment of this utility model, the spraying fixture is provided with an outer cover, which is connected to the spraying fixture by a snap fastener and is evenly distributed on the connection edge between the outer cover and the spraying fixture.

[0016] As a preferred embodiment of this utility model, the spraying fixture and the seat of the electric chuck are connected by threads. The connecting end of the electric chuck is provided with external threads, and the top of the spraying fixture is provided with an internal thread hole. The thread specification is M16×1.5. When connecting, thread-locking adhesive is applied to prevent loosening and ensure that the electric chuck 8 is reliably installed on the spraying fixture.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this utility model, the multi-angle rotating plastic workpiece spraying fixture achieves the following effects: 1. The height of the adjustable support can be precisely adjusted within a certain range through the adjustment holes and locking bolts on the bottom bracket. The adjustment hole spacing is 20mm, meeting the height requirements of different spraying equipment and workpieces, improving the applicability of the fixture, reducing the adjustment time of the spraying system, and improving production efficiency; 2. The lateral adjustment structure adopts a combination of adjusting handwheel, ball screw, and screw nut seat, in conjunction with guide rail and slider. The slider's fit on the guide rail achieves an accuracy of H7 / g6, enabling precise and stable lateral displacement adjustment, ensuring the accuracy of the workpiece's lateral position during the spraying process, improving the uniformity of the workpiece coating, and enhancing the spraying quality; 3. In the rotating structure, the rotating shaft is connected to the spraying fixture by a spline, the worm gear is connected to the rotating shaft by a flat key, the worm is connected to the drive motor output shaft by a flexible coupling, and the bearing installation adopts an interference fit and is equipped with a shoulder for positioning. These connection methods ensure reliable torque transmission and smooth operation of the rotating structure, reduce impact and vibration, guarantee rotational stability and accuracy, extend fixture life, and reduce maintenance costs; 4. The spray-painted fixture and the electric chuck are connected by threads, with an M16×1.5 thread specification and thread-locking adhesive applied, ensuring a secure connection and facilitating disassembly and replacement. The electric chuck can accommodate plastic workpieces of various shapes and sizes, improving fixture versatility, reducing fixture replacement frequency, and lowering production costs and management complexity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a top view of the structure of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the partially disassembled rotating structure of this utility model.

[0023] In the diagram: 1. Bottom bracket; 2. Locking bolt; 3. Adjustable height bracket; 4. Spraying platform; 5. Lateral adjustment structure; 51. Adjusting handwheel; 52. Ball screw; 53. Screw nut seat; 6. Rotating structure; 61. Rotating shaft; 62. Worm gear; 63. Worm; 64. Drive motor; 65. Bearing; 7. Spraying fixture; 8. Electric chuck; 9. Outer cover; 10. Guide rail. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0029] A multi-angle rotating plastic workpiece spraying fixture includes a bottom support 1. An adjustable height support 3 is fixedly installed on the top of the bottom support 1 by multiple locking bolts 2. A spraying platform 4 is fixedly installed on the top of the adjustable height support 3. A horizontal adjustment structure 5 is installed above the spraying platform 4. A rotating structure 6 is connected to the horizontal adjustment structure 5. A spraying fixture 7 is connected above the rotating structure 6. An electric chuck 8 is installed above the spraying fixture 7.

[0030] Specifically, the lateral adjustment structure 5 includes an adjustment handwheel 51 located on one side. The output end of the adjustment handwheel 51 is connected to a ball screw 52. A screw nut seat 53 is driven and connected to the ball screw 52. The top of the screw nut seat 53 is fixedly connected to the bottom of the rotating structure 6. The top of the screw nut seat 53 is connected to the bottom of the rotating structure 6 by a bolt group, with no fewer than four bolts symmetrically distributed. A positioning keyway is also provided on the connection surface, which cooperates with the positioning key to prevent circumferential rotation between the screw nut seat 53 and the rotating structure 6. The spraying platform 4 is equipped with a guide rail 10. The screw nut seat 53 and the guide rail 10 are connected by a slider. The slider is fixed to the bottom of the screw nut seat 53 as a single unit. The guide rail 10 has a fitting accuracy of H7 / g6. The guide rail 10 is fixed to the spraying platform 4 by countersunk bolts to ensure the stability and straightness of the lateral adjustment structure 5 during movement. Rotating the adjustment handwheel 51 drives the ball screw 52 to rotate, and the screw nut seat 53 moves along the ball screw 52. Since the bottom slider of the screw nut seat 53 is connected to the guide rail 10 (fitting accuracy H7 / g6), it ensures that it moves smoothly along a straight line. Through the cooperation of bolt groups (no less than 4) and positioning keyways and positioning keys, the rotating structure 6 is driven to move laterally. The precise control of the lateral position of the workpiece, combined with the high-precision guide rail, ensures smooth movement and high straightness, making the workpiece position accurate during spraying, resulting in a more uniform coating and improved spraying quality.

[0031] Specifically, the rotating structure 6 includes a rotating shaft 61 connected to the inner bottom end of the spraying fixture 7. A worm gear 62 is connected to the bottom of the rotating shaft 61, and a worm 63 is connected to the outer side of the worm gear 62. A drive motor 64 is fixedly connected to one side of the bearing of the worm 63. The worm gear 62 is sleeved and installed on the outer side of the bearing 65 located above the bottom of the rotating structure 6. The rotating shaft 61 and the inner bottom end of the spraying fixture 7 are connected by a spline. The spline tooth profile is involute, and the length of the spline is adapted to the depth of the rotating shaft 61 inserted into the spraying fixture 7 to ensure reliable torque transmission and coaxiality between the rotating shaft 61 and the spraying fixture 7. The worm gear 62 and the rotating shaft 61 are connected by a flat key. The width and height of the flat key are designed according to the dimensions of the rotating shaft 61, and the length of the flat key is 2 / 3 of the length of the corresponding shaft segment of the rotating shaft 61 to ensure that the worm gear 62 and the rotating shaft 61 rotate synchronously. The worm 63 and the output shaft of the drive motor 64 are connected by a coupling. The coupling is a flexible coupling that can compensate for the worm gear's rotation. The coaxiality deviation between rod 63 and the output shaft of drive motor 64 serves to buffer and absorb vibration, reducing impact and vibration during transmission. The outer ring of bearing 65 and the mounting hole at the bottom of rotating structure 6 are interference-fitted, with the interference controlled between 0.01-0.03mm. The inner ring and worm gear 62 are fitted with a shoulder with a height of 3-5mm, which is used to axially position bearing 65 and ensure stable operation. When drive motor 64 starts, it drives worm 63 to rotate through flexible coupling. Worm 63 drives worm gear 62 to rotate. Worm gear 62 drives rotating shaft 61 to rotate through a flat key. Rotating shaft 61 is splined connected to spraying fixture 7, thereby driving spraying fixture 7 and workpiece to rotate at multiple angles. Bearing 65 is positioned by interference fit and shoulder to ensure rotational stability. This enables multi-angle rotating spraying of workpiece, smooth transmission, reduced impact and vibration, reliable torque transmission, high coaxiality, and ensures uniform spraying of workpiece from all directions, improving spraying efficiency and yield.

[0032] The spraying fixture 7 is provided with an outer cover 9 on the outside. The outer cover 9 is connected to the spraying fixture 7 by a snap-fit ​​and is evenly distributed on the connection edge between the outer cover 9 and the spraying fixture 7. The outer cover 9 effectively protects the internal structure of the fixture, prevents paint from splashing in and extends the service life of the fixture.

[0033] Specifically, the bottom bracket 1 has multiple evenly distributed adjustment holes with a spacing of 20mm. By inserting the locking bolts 2 into different adjustment holes, the height of the adjustable bracket 3 can be precisely adjusted within a certain range. The top of the adjustable bracket 3 is fixed to the spraying platform 4 by welding. The welding method is full welding, and the weld width is uniform and not less than 5mm to ensure connection strength, so that the spraying platform 4 can stably support the structure above. The top of the adjustable bracket 3 is fixed to the spraying platform 4 by full welding (weld width ≥ 5mm). In subsequent operations, the spraying platform 4 supports the horizontal adjustment structure, rotation structure, and other components. Spraying operation; ensuring the high strength load-bearing capacity of the spraying platform 4, stably supporting the upper structure, making the fixture highly stable during operation, and avoiding the impact of structural loosening on spraying accuracy and equipment safety; observe the required height of the spraying equipment and workpiece, remove the locking bolt 2 from the current adjustment hole of the bottom bracket 1, move the adjustable bracket 3 to the appropriate height, insert the locking bolt 2 into the corresponding adjustment hole (20mm spacing) and tighten it to fix it; realize the precise adjustment of the fixture height within a certain range, which can be adapted to different specifications of spraying equipment and workpieces, reduce the equipment debugging time caused by height mismatch, improve production efficiency, and improve versatility.

[0034] Specifically, the spraying fixture 7 and the seat of the electric chuck 8 are connected by threads. The connecting end of the electric chuck 8 has external threads, and the top of the spraying fixture 7 has an internal threaded hole with a thread specification of M16×1.5. Thread-locking adhesive is applied during connection to prevent loosening and ensure that the electric chuck 8 is reliably installed on the spraying fixture 7. Thread-locking adhesive is applied to the internal threaded hole (M16×1.5) on the top of the spraying fixture 7, and the external thread of the connecting end of the electric chuck 8 is screwed in and tightened. The plastic workpiece is placed on the electric chuck 8, and the electric chuck 8 is activated to clamp the workpiece. The electric chuck 8 is reliably installed on the spraying fixture 7. The threaded connection and the adhesive prevent loosening, allowing for quick and stable clamping of workpieces of different specifications, improving clamping efficiency and stability, and adapting to diverse production needs.

[0035] The working process of this utility model is as follows: When using this multi-angle rotary plastic workpiece spraying fixture, firstly, insert the locking bolt 2 into different adjustment holes of the bottom bracket 1, adjust the adjustable bracket 3 to the appropriate height, and then tighten it to meet the needs of different spraying equipment and workpieces. Then, rotate the adjusting handwheel 51 to drive the ball screw 52, ​​and the screw nut seat 53 moves linearly along the guide rail 10. Through the bolt group and the positioning keyway, the rotating structure 6 is driven to move laterally, accurately adjusting the workpiece spraying position. At the same time, the drive motor 64 drives the worm 63 through the elastic coupling. The worm 63 meshes with the worm wheel 62, and the rotating shaft 61 is rotated through the flat key. The spline-connected spraying fixture 7 rotates synchronously, and the bearing 65 ensures smooth rotation, realizing uniform spraying of the workpiece from multiple angles. Further, apply fastening glue to the M16×1.5 internal thread hole on the top of the spraying fixture 7, screw in the external thread of the electric chuck 8 and tighten it. After placing the plastic workpiece in the chuck, start clamping to quickly fix workpieces of different specifications. Finally, the plastic workpiece spraying operation can be carried out.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle rotating plastic workpiece spraying fixture, including a bottom support (1), characterized in that: An adjustable height bracket (3) is fixedly installed above the bottom bracket (1) by multiple locking bolts (2). A spraying platform (4) is fixedly installed on the top of the adjustable height bracket (3). A horizontal adjustment structure (5) is provided above the spraying platform (4). A rotating structure (6) is connected to the horizontal adjustment structure (5). A spraying fixture (7) is connected above the rotating structure (6). An electric chuck (8) is provided above the spraying fixture (7). The lateral adjustment structure (5) includes an adjustment handwheel (51) located on one side. The output end of the adjustment handwheel (51) is connected to a ball screw (52). A screw nut seat (53) is connected to the ball screw (52). The top of the screw nut seat (53) is fixedly connected to the bottom of the rotating structure (6). The rotating structure (6) includes a rotating shaft (61) connected to the inner bottom end of the spraying fixture (7). A worm wheel (62) is connected to the bottom of the rotating shaft (61). A worm (63) is connected to the outer side of the worm wheel (62). A drive motor (64) is fixedly connected to the bearing side of the worm (63). At the same time, the worm wheel (62) is sleeved and installed on the outer side of the bearing (65) located above the bottom of the rotating structure (6).

2. The multi-angle rotating plastic workpiece spraying fixture according to claim 1, characterized in that: The bottom bracket (1) has multiple adjustment holes evenly distributed on it, with a spacing of 20mm between the adjustment holes. By inserting the locking bolt (2) into different adjustment holes, the height of the adjustable bracket (3) can be precisely adjusted within a certain range.

3. The multi-angle rotating plastic workpiece spraying fixture according to claim 1, characterized in that: The top of the adjustable height bracket (3) is fixed to the spraying platform (4) by welding. The welding method is full welding, and the weld width is uniform and not less than 5mm to ensure the connection strength so that the spraying platform (4) can stably support the structure above.

4. The multi-angle rotating plastic workpiece spraying fixture according to claim 1, characterized in that: The top of the lead screw nut seat (53) is connected to the bottom of the rotating structure (6) by a bolt group. The number of bolt groups is not less than 4 and they are symmetrically distributed. A positioning keyway is also provided on the connection surface. The positioning keyway cooperates with the positioning key to prevent circumferential rotation between the lead screw nut seat (53) and the rotating structure (6).

5. The multi-angle rotating plastic workpiece spraying fixture according to claim 1, characterized in that: The spraying platform (4) is provided with a guide rail (10). The lead screw nut seat (53) is connected to the guide rail (10) by a slider. The slider and the bottom of the lead screw nut seat (53) are fixed together. The fit accuracy of the slider on the guide rail (10) is H7 / g6. The guide rail (10) and the spraying platform (4) are fixed by countersunk bolts to ensure the stability and straightness of the lateral adjustment structure (5) when it moves.

6. The multi-angle rotating plastic workpiece spraying fixture according to claim 1, characterized in that: The rotating shaft (61) is connected to the bottom of the spraying fixture (7) by a spline. The spline has an involute tooth shape and the length of the spline is adapted to the depth of the rotating shaft (61) inserted into the spraying fixture (7) to ensure reliable torque transmission and coaxiality between the rotating shaft (61) and the spraying fixture (7).

7. The multi-angle rotating plastic workpiece spraying fixture according to claim 1, characterized in that: The worm gear (62) is connected to the rotating shaft (61) by a flat key. The width and height of the flat key are designed according to the size of the rotating shaft (61). The length of the flat key is 2 / 3 of the length of the corresponding shaft segment of the rotating shaft (61) to ensure that the worm gear (62) and the rotating shaft (61) rotate synchronously. The worm (63) is connected to the output shaft of the drive motor (64) by a coupling. The coupling is an elastic coupling, which can compensate for the coaxiality deviation between the worm (63) and the output shaft of the drive motor (64). It also has the functions of buffering and vibration absorption, reducing the impact and vibration during the transmission process. The outer ring of the bearing (65) is fitted with the mounting hole at the bottom of the rotating structure (6) by an interference fit. The interference is controlled between 0.01-0.03mm. The inner ring is fitted with the worm gear (62) by a shoulder with a height of 3-5mm. The shoulder is used to axially position the bearing (65) to ensure the stable operation of the bearing (65).

8. The multi-angle rotating plastic workpiece spraying fixture according to claim 1, characterized in that: The spraying fixture (7) is provided with an outer cover (9) on the outside. The outer cover (9) is connected to the spraying fixture (7) by a snap fastener and is evenly distributed on the connecting edge of the outer cover (9) and the spraying fixture (7).

9. The multi-angle rotating plastic workpiece spraying fixture according to claim 1, characterized in that: The spraying fixture (7) and the seat of the electric chuck (8) are connected by threads. The connecting end of the electric chuck (8) is provided with external threads, and the top of the spraying fixture (7) is provided with an internal thread hole. The thread specification is M16×1.

5. When connecting, apply thread-locking glue to prevent loosening and ensure that the electric chuck (8) is reliably installed on the spraying fixture (7).

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