Ball-rotating type spray jig

Abstract

This invention relates to the field of automotive manufacturing technology, and particularly to a ball-bearing rotary spraying fixture, comprising: an outer ring, an inner ring, a ball-bearing rotating component, a locking component, and a supporting component. The inner ring is disposed inside the outer ring, and the inner and outer rings are arranged concentrically. The inner ring engages with the outer ring via the ball-bearing rotating component, allowing the outer ring to rotate relative to the inner ring. The locking component is disposed on the outer ring and is used to lock the outer and inner rings to prevent relative rotation when needed. The supporting component is fixed to the outer ring and is used to fix the workpiece to be sprayed. The inner ring is fixedly connected to the supporting component. In this ball-bearing rotary spraying fixture, the inner ring engages with the outer ring via the ball-bearing rotating component, making the rotation of the outer ring relative to the inner ring smoother and more stable. The ball-bearing rotary spraying fixture is equipped with a locking component, which locks the relative positions of the inner and outer rings after the outer ring rotates 180° relative to the inner ring, preventing them from shifting and ensuring the quality of resin spraying.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing technology, and in particular to a ball-bearing rotary spraying fixture. Background Technology

[0002] Resin spraying is a standard processing technique in automobile manufacturing. During the manufacturing process, products often require painting on both sides, necessitating robotic painting of both sides within the painting line. Therefore, on-site adjustments to the fixture structure are needed to enable rotation and achieve this dual-sided painting. Solving the on-site problem of dual-sided painting and achieving fixture rotation requires addressing the following technical challenges: ① The relative position of the fixture to the robot and conveyor chain must remain unchanged after rotation; the rotation angle must be accurate to 180°, and no positional shift should occur after rotation; ② The fixture's rotation must not be affected by paint mist, ensuring lubrication; ③ The fixture must be capable of hot-strip cleaning and chemical cleaning.

[0003] A search revealed Chinese patent CN214811919U as the closest prior art. This patent discloses a rotary spraying bracket for automotive body panels. This patent uses a servo motor to drive a rotating rod, adjusting the position of the automotive body panel by placing it on the rotating rod. However, this disclosed rotary spraying bracket only adjusts the position of the rotating rod by starting and stopping the servo motor, lacking a specific locking mechanism. Considering factors such as error, the rotation is not smooth enough, cannot guarantee a precise 180° rotation each time, and the rotating rod is prone to slight swaying during spraying, affecting the spraying quality. Furthermore, during operation, the spray can easily seep into the moving parts of the rotating rod, leading to decreased mobility and affecting its normal use over time. Summary of the Invention

[0004] This invention addresses the technical problem in the prior art where the stability and rotational accuracy of automotive parts during resin spraying are difficult to guarantee, thus affecting the quality of resin spraying.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0006] A ball-bearing rotary spraying fixture includes: an outer ring, an inner ring, a ball-bearing rotating component, a locking component, and a load-bearing component;

[0007] The inner ring is disposed inside the outer ring, and the inner ring and the outer ring are arranged in concentric circles; the inner ring cooperates with the outer ring through the ball bearing rotating component, and the outer ring can rotate relative to the inner ring; the locking component is disposed on the outer ring, and the locking component is used to lock the outer ring and the inner ring when needed to prevent them from rotating relative to each other;

[0008] The bearing component is fixed on the outer ring and is used to fix the workpiece to be sprayed; the inner ring is used to fix and connect with the support component.

[0009] Furthermore: the ball rotating component includes a plurality of balls;

[0010] The outer side of the inner ring is provided with an annular first groove; the inner side of the outer ring is provided with an annular second groove; the first groove and the second groove cooperate with each other, and the ball is disposed inside the first groove and the second groove.

[0011] Furthermore, the first and second slides are configured as wedge-shaped structures.

[0012] Furthermore: the locking component includes: a first quick connector and a second quick connector;

[0013] The first quick connector and the second quick connector are disposed on the outer ring; the first quick connector and the second quick connector are disposed opposite to each other and are located on a straight line containing either diameter of the outer ring and the inner ring;

[0014] The outer ring has a first through hole and a second through hole on its upper side wall. The locking end of the first quick connector mates with the first through hole, and the locking end of the second quick connector mates with the second through hole. The inner ring has a third through hole and a fourth through hole on its side. The third through hole and the fourth through hole are arranged opposite to each other and are located on a straight line along any diameter of the inner ring. After rotating 180°, the locking end of the first quick connector passes through the first through hole and the third through hole in sequence, and the locking end of the second quick connector passes through the second through hole and the fourth through hole in sequence.

[0015] Furthermore, it also includes: a one-way limiting component;

[0016] The one-way limiting component is installed on the outer ring; the one-way limiting component cooperates with the ball to allow the ball to slide in one direction.

[0017] Furthermore: the one-way limiting component includes: a stop block, an elastic element, and a miniature stop lever;

[0018] The outer ring has an installation window on its side;

[0019] The lower end of the elastic element is fixed to the bottom of the mounting window; the upper end of the elastic element is fixedly connected to the outer end of the stop block; one side of the stop block is configured as an arc-shaped structure that cooperates with the ball bearing, and the inner end of the stop block extends into the second groove.

[0020] The lower end of the stop block is provided with a limiting groove that opens to one side of the arc-shaped structure. One end of the miniature stop rod is fixed to the bottom plate of the outer ring, and the other end of the miniature stop rod is located at the innermost end of the limiting groove.

[0021] Furthermore, the one-way limiting component also includes a base and a handle;

[0022] The bottom of the mounting window is provided with a circular mounting groove;

[0023] The base is cylindrical and is disposed within the mounting groove; the lower end of the elastic element is fixed to the upper end of the base; an clearance groove is provided on the outer side of the mounting groove, and one end of the handle is fixedly connected to the base through the clearance groove.

[0024] Furthermore, it also includes: fasteners;

[0025] The fastener is fixed to the inner side of the inner ring and is used for fixed connection with the support component.

[0026] Furthermore: the fastener includes: a connecting block and a snap-fit ​​block;

[0027] One end of the connecting block is fixedly connected to the inner ring, and the other end of the connecting block is fixedly connected to the snap-fit ​​block;

[0028] The outer side of the snap-fit ​​block is provided with a trapezoidal slot, which cooperates with the corresponding structure on the support component.

[0029] Furthermore: the supporting component includes: a first bracket and a second bracket;

[0030] The first bracket and the second bracket are disposed on the outer ring; the first bracket and the second bracket are disposed opposite to each other and are located on a straight line containing either diameter of the outer ring and the inner ring; the straight line containing the first bracket and the second bracket is perpendicular to the straight line containing the first quick connector and the second quick connector.

[0031] The first and second brackets are matched with the workpiece to be coated.

[0032] The ball-bearing rotary spraying fixture provided by this invention has at least the following beneficial effects or advantages:

[0033] The present invention provides a ball-bearing rotary spraying fixture, in which an inner ring is located inside an outer ring, and the inner and outer rings are arranged concentrically. The inner ring engages with the outer ring via a ball-bearing rotating component, allowing the outer ring to rotate relative to the inner ring. A locking component is located on the outer ring, used to lock the outer and inner rings to prevent relative rotation when needed. A support component is fixed to the outer ring, used to fix the workpiece to be sprayed. The inner ring is fixedly connected to the support component. Structurally, this ball-bearing rotary spraying fixture, with its inner ring engaging with the outer ring via the ball-bearing rotating component, makes the rotation of the outer ring relative to the inner ring smoother and more stable. The locking component, after the outer ring rotates 180° relative to the inner ring, locks the relative positions of the inner and outer rings, preventing movement and ensuring the quality of resin spraying. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the external structure of the ball-bearing rotary spraying fixture provided in an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the external and internal structure of the ball-bearing rotary spraying fixture provided in an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the inner ring and ball structure provided in an embodiment of the present invention;

[0037] Figure 4 A top view of the stop provided in an embodiment of the present invention;

[0038] Figure 5 This is a cross-sectional view of a unidirectional limiting component provided in an embodiment of the present invention.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 1-Inner ring, 11-First slide groove, 2-Outer ring, 21-Second slide groove, 3-Bearing component, 31-First bracket, 32-Second bracket, 4-Locking component, 41-First quick connector, 42-Second quick connector, 5-One-way limiting component, 51-Handle, 52-Stop, 53-Elastic component, 54-Limiting groove, 55-Miniature stop bar, 56-Base, 6-Fixing component, 7-Ball rotating component. Detailed Implementation

[0041] This invention addresses the technical problem in the prior art where the stability and rotational accuracy of automotive parts during resin spraying are difficult to guarantee, thus affecting the quality of resin spraying.

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] This invention discloses a ball-bearing rotary spraying fixture, such as... Figures 1-3 The fixture includes: an outer ring 2, an inner ring 1, a ball bearing rotating component 7, a locking component 4, and a supporting component 3. The inner ring 1 is located inside the outer ring 2, and the inner ring 1 and outer ring 2 are concentric circles. The gap between the inner ring 1 and outer ring 2 is set to 0.5-1.0 mm to ensure a tight fit. The inner ring 1 engages with the outer ring 2 via the ball bearing rotating component 7, allowing the outer ring 2 to rotate relative to the inner ring 1. The locking component 4 is located on the outer ring 2 and is used to lock the outer ring 2 and inner ring 1 to prevent relative rotation when needed. Typically, the locking component 4 locks the inner ring 1 and outer ring 2 after the outer ring 2 has rotated 180° relative to the inner ring 1. The supporting component 3 is fixed to the outer ring 2 and is used to fix the workpiece to be sprayed; specifically, the supporting component 3 can be configured to match the shape of the workpiece to be sprayed. The inner ring 1 is used to be fixedly connected to a supporting component, which is fixed to the ground or other supporting platform. The components of the ball bearing rotary spraying fixture disclosed in this embodiment are described in detail below:

[0044] The ball bearing rotating component 7 is the main component that ensures the relative rotation of the inner ring 1 and the outer ring 2. In this embodiment, the ball bearing rotating component 7 includes multiple balls; the multiple balls are steel balls of the same diameter. An annular first groove 11 is provided on the outer side of the inner ring 1, and an annular second groove 21 is provided on the inner side of the outer ring 2; the first groove 11 and the second groove 21 cooperate, and the balls are disposed inside the first groove 11 and the second groove 21. The first groove 11 and the second groove 21 are configured as wedge-shaped groove structures, so that the balls are completely embedded inside the first groove 11 and the second groove 21. The outer edge of the wedge-shaped groove structure has a shielding function, which can effectively prevent the resin from being sprayed into the balls inside the first groove 11 and the second groove 21 during the resin spraying process. This solves the technical problem of the spray adhering to the balls, causing a decrease in mobility and affecting their normal use.

[0045] The locking component 4 is the core component in this embodiment used to prevent the inner ring 1 and outer ring 2 from shifting position after rotation into place. The locking component 4 includes a first quick connector 41 and a second quick connector 42. Both the first quick connector 41 and the second quick connector 42 are commonly used quick connectors in the art, and their structures will not be described in detail. The first quick connector 41 and the second quick connector 42 are disposed on the outer ring 2; the first quick connector 41 and the second quick connector 42 are arranged opposite each other and located on a straight line containing either the diameter of the outer ring 2 and the inner ring 1. A first through hole and a second through hole are formed on the upper sidewall of the outer ring 2. The locking end of the first quick connector 41 mates with the first through hole, and the locking end of the second quick connector 42 mates with the second through hole. The inner ring 1 has a third through hole and a fourth through hole on its side. The third through hole and the fourth through hole are arranged opposite each other and are located on a straight line containing any diameter of the inner ring 1. After rotating 180°, the locking end of the first quick connector 41 passes through the first through hole and the third through hole in sequence, and the locking end of the second quick connector 42 passes through the second through hole and the fourth through hole in sequence.

[0046] To limit the unidirectional rotation of the outer ring 2 relative to the inner ring 1 and ensure the smoothness of rotation, this embodiment also includes a unidirectional limiting component 5. The unidirectional limiting component 5 is installed on the outer ring 2; the unidirectional limiting component 5 cooperates with the ball bearings to allow the ball bearings to slide in one direction.

[0047] Specifically, such as Figures 1-5 The one-way limiting component 5 includes a stop block 52, an elastic element 53, and a miniature stop bar 55. An installation window is provided on the side of the outer ring 2; the lower end of the elastic element 53 is fixed to the bottom of the installation window, and the upper end of the elastic element 53 is fixedly connected to the outer end of the stop block 52. One side of the stop block 52 is configured with an arc-shaped structure that cooperates with the ball bearing, and the inner end of the stop block 52 extends into the second sliding groove 21. The elastic element 53 is selected to be able to twist when the stop block 52 is pressed by the ball bearing, and to automatically reset after the pressing process ends. A limiting groove 54 is provided at the lower end of the stop block 52, opening to one side of the arc-shaped structure. One end of the miniature stop bar 55 is fixed to the bottom plate of the outer ring 2, and the other end of the miniature stop bar 55 is located at the innermost end of the limiting groove 54. The position of the miniature stop bar should not obstruct the movement path of the ball bearing. When the ball rolls in the permitted direction, it pushes the stop 52 forward, causing the miniature stop lever 55 to move out of one end of the opening in the limiting groove 54. The stop 52 causes the elastic element 53 to deflect to a certain extent until the ball passes the position of the stop 52. Then, the stop 52 returns to its original position under the action of the elastic element 53. When the ball rolls in the prohibited direction, the miniature stop lever 55 abuts against the innermost end of the limiting groove 54, and the position of the stop 52 remains unchanged, preventing the ball from passing the position of the stop 52.

[0048] To further expand the function of the one-way limiting component 5, allowing workers to choose whether to use it for one-way passage or not, this embodiment also adds a base 56 and a handle 51 to the limiting component. A circular mounting groove is provided at the bottom of the mounting window. The base 56 is cylindrical and is positioned within the mounting groove, with a certain preload between it and the groove. During the rotation of the stop block 52 driven by the ball bearings, the base 56 does not rotate within the mounting groove. The lower end of the elastic element 53 is fixed to the upper end of the base 56. A clearance groove is provided on the outer side of the mounting groove, and one end of the handle 51 is fixedly connected to the base 56 through the clearance groove. When using the one-way limiting component 5 for one-way passage, rotating the handle 51 forward causes the base 56 to rotate, which in turn causes the stop block 52 to rotate synchronously forward, positioning the stop block 52 inside the second groove. At this time, the ball bearings are blocked by the stop block 52. When the one-way limiting component 5 is not used to perform the one-way passage function, the handle 51 is rotated in the opposite direction. The handle 51 drives the base 56 to rotate in the mounting groove. The base 56 drives the stop 52 to rotate in the opposite direction, so that the stop 52 rotates from the inside of the second groove to the inside or outside of the mounting window. At this time, the ball is not blocked by the stop 52.

[0049] The ball-bearing rotary spraying fixture provided in this embodiment also includes a fixing member 6. The fixing member 6 is fixed to the inner side of the inner ring 1 and is used for fixed connection with the supporting component. Specifically, the fixing member 6 includes a connecting block and a snap-fit ​​block. One end of the connecting block is fixedly connected to the inner ring 1, and the other end of the connecting block is fixedly connected to the snap-fit ​​block. The outer side of the snap-fit ​​block is provided with a trapezoidal slot, which cooperates with the corresponding structure on the supporting component for snap-fit ​​fixation.

[0050] The support component 3 is the component that directly contacts the workpiece to be coated. The support component 3 includes a first bracket 31 and a second bracket 32. The first bracket 31 and the second bracket 32 ​​are disposed on the outer ring 2; the first bracket 31 and the second bracket 32 ​​are arranged opposite each other and located on a straight line containing either the diameter of the outer ring 2 or the inner ring 1; the straight line containing the first bracket 31 and the second bracket 32 ​​is perpendicular to the straight line containing the first quick connector 41 and the second quick connector 42. The first bracket 31 and the second bracket 32 ​​are matched with the workpiece to be coated.

[0051] The working process of the ball-bearing rotary spraying fixture provided in this embodiment of the invention is as follows: Figures 1-5The workpiece to be sprayed is mounted on the first bracket 31 and the second bracket 32 ​​of the bearing component 3. The fixing component 6 is snapped and fixed to the support component set up at the spraying site. First, the front side of the workpiece is sprayed. After the front side is sprayed, the outer ring 2 is rotated manually (or by a robot) so that the outer ring 2 rotates 180° relative to the inner ring 1. After it is rotated into place, the first quick connector 41 and the second quick connector 42 are snapped into the corresponding through holes to lock the inner ring 1 and the outer ring 2. Then, the reverse side of the workpiece is sprayed.

[0052] like Figures 1-5 The ball-bearing rotary spraying fixture provided in this embodiment of the invention has at least the following beneficial effects or advantages:

[0053] The ball-bearing rotary spraying fixture provided in this embodiment of the invention has an inner ring 1 disposed inside an outer ring 2, with the inner ring 1 and outer ring 2 arranged concentrically. The inner ring 1 cooperates with the outer ring 2 via a ball-bearing rotating component 7, allowing the outer ring 2 to rotate relative to the inner ring 1. A locking component 4 is disposed on the outer ring 2, used to lock the outer ring 2 and inner ring 1 to prevent relative rotation when needed. A bearing component 3 is fixed to the outer ring 2, used to fix the workpiece to be sprayed. The inner ring 1 is fixedly connected to the supporting component. Structurally, this ball-bearing rotary spraying fixture, with the inner ring 1 cooperating with the outer ring 2 via the ball-bearing rotating component 7, makes the rotation of the outer ring 2 relative to the inner ring 1 more stable and smooth. The ball-bearing rotary spraying fixture is equipped with a locking component 4, which locks the relative position of the inner and outer rings 2 after the outer ring 2 rotates 180° relative to the inner ring 1, preventing them from shifting and ensuring the quality of resin spraying.

[0054] In the description of this invention, it should be noted that the terms used in the various embodiments, such as "upper," "lower," "front," "rear," "left," and "right," which indicate orientation, are only used to simplify the description of the positional relationships based on the accompanying drawings and do not mean that the components and devices referred to must be operated in accordance with the specific orientations and defined operations, methods, and structures in the specification. Such directional terms do not constitute a limitation of this invention.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 ball rotary spray jig, characterized by: include: Outer ring (2), inner ring (1), ball rotating component (7), locking component (4) and bearing component (3); The inner ring (1) is disposed inside the outer ring (2), and the inner ring (1) and the outer ring (2) are arranged in concentric circles; the inner ring (1) cooperates with the outer ring (2) through the ball rotating component (7), and the outer ring (2) can rotate relative to the inner ring (1); the locking component (4) is disposed on the outer ring (2), and the locking component (4) is used to lock the outer ring (2) and the inner ring (1) when needed to prevent them from rotating relative to each other; The bearing component (3) is fixed on the outer ring (2), and the bearing component (3) is used to fix the workpiece to be sprayed; the inner ring (1) is used to fix and connect with the support component; The ball rotating component (7) includes a plurality of balls; The outer side of the inner ring (1) is provided with an annular first groove (11); the inner side of the outer ring (2) is provided with an annular second groove (21); the first groove (11) and the second groove (21) cooperate with each other, and the ball is disposed inside the first groove (11) and the second groove (21). It also includes: a one-way limiting component (5); The one-way limiting component (5) is installed on the outer ring (2); the one-way limiting component (5) cooperates with the ball to allow the ball to slide in one direction; The one-way limiting component (5) includes: a stop (52), an elastic element (53), and a miniature stop lever (55); The outer ring (2) has an installation window on its side; The lower end of the elastic element (53) is fixed to the bottom of the mounting window; the upper end of the elastic element (53) is fixedly connected to the outer end of the stop block (52); one side of the stop block (52) is configured as an arc-shaped structure that cooperates with the ball, and the inner end of the stop block (52) extends into the second slide groove (21). The lower end of the stop block (52) is provided with a limiting groove (54) that opens to one side of the arc structure. One end of the micro stop bar (55) is fixed to the bottom plate of the outer ring (2), and the other end of the micro stop bar (55) is located at the innermost end of the limiting groove (54). The locking component (4) includes: a first quick connector (41) and a second quick connector (42); The supporting component (3) includes: a first bracket (31) and a second bracket (32); The first bracket (31) and the second bracket (32) are disposed on the outer ring (2); the first bracket (31) and the second bracket (32) are disposed opposite to each other and are located on the straight line of either diameter of the outer ring (2) and the inner ring (1); the straight line of the first bracket (31) and the second bracket (32) is perpendicular to the straight line of the first quick connector (41) and the second quick connector (42); The first bracket (31) and the second bracket (32) are matched with the workpiece to be coated; The one-way limiting component (5) further includes: a base (56) and a handle (51); The bottom of the mounting window is provided with a circular mounting groove; The base (56) is cylindrical and is located in the mounting groove. The lower end of the elastic element (53) is fixed to the upper end of the base (56). An clearance groove is provided on the outer side of the mounting groove, and one end of the handle (51) is fixedly connected to the base (56) through the clearance groove.

2. The ball-bearing rotary spraying fixture according to claim 1, characterized in that: The first groove (11) and the second groove (21) are configured as wedge-shaped structures.

3. The ball-bearing rotary spraying fixture according to claim 1, characterized in that: The first quick connector (41) and the second quick connector (42) are disposed on the outer ring (2); the first quick connector (41) and the second quick connector (42) are disposed opposite to each other and are located on a straight line containing either the outer ring (2) or the inner ring (1); The outer ring (2) has a first through hole and a second through hole on its upper side wall. The locking end of the first quick connector (41) is engaged with the first through hole, and the locking end of the second quick connector (42) is engaged with the second through hole. The inner ring (1) has a third through hole and a fourth through hole on its side. The third through hole and the fourth through hole are arranged opposite to each other and are located on a straight line with any diameter of the inner ring (1). After rotating 180°, the locking end of the first quick connector (41) passes through the first through hole and the third through hole in sequence, and the locking end of the second quick connector (42) passes through the second through hole and the fourth through hole in sequence.

4. The ball-bearing rotary spraying fixture according to any one of claims 1-3, characterized in that: Also includes: Fastener (6); The fastener (6) is fixed to the inner side of the inner ring (1), and the fastener (6) is used to fix and connect with the support component.

5. The ball-bearing rotary spraying fixture according to claim 4, characterized in that: The fastener (6) includes: a connecting block and a snap-fit ​​block; One end of the connecting block is fixedly connected to the inner ring (1), and the other end of the connecting block is fixedly connected to the snap-fit ​​block; The outer side of the snap-fit ​​block is provided with a trapezoidal slot, which cooperates with the corresponding structure on the support component.

Images