Multi-angle turnover positioning mechanism

Abstract

The utility model relates to the field of work fixtures, and discloses a multi-angle turnover positioning mechanism which comprises a machine base and an adsorption positioning part arranged on the machine base, the machine base comprises a base and a bearing seat vertically fixed on the base in parallel, and the adsorption positioning part comprises a turnover seat and an adsorption assembly arranged on the turnover seat. The two ends of the overturning seat are provided with rotating shafts matched with the bearing seats in a rotating and inserting mode, and the bearing seats are provided with positioning mechanisms and locking mechanisms, the positioning mechanisms enable the overturning seat to be static relative to the bearing seats after the overturning seat rotates by a certain angle every time, and the locking mechanisms enable the overturning seat and the bearing seats to be relatively locked after the overturning seat is positioned. The positioning mechanism can improve the operation efficiency and the operation quality.

Description

Technical Field

[0001] The utility model relates to the field of tooling fixtures, in particular to a multi-angle flipping and positioning mechanism. Background Art

[0002] During the production process of multi-angle workpieces (such as automotive interior parts), processes such as polishing and quality inspection are required. Since the workpieces have multiple curved surfaces and are in the shape of thin sheets, during operation, the workpieces need to be first positioned on a tooling, and then tools are used for polishing or inspection, etc.

[0003] The structure of the existing positioning tooling refers to an adjustable positioning part for automotive interior part inspection fixture disclosed in a Chinese patent with the publication number CN219945897U, which includes a base. On both sides of the top of the base, movable blocks are installed. On the top of the movable blocks, a plurality of evenly distributed fixed columns are installed, and suction cups are fixed on the tops of the fixed columns.

[0004] The existing positioning part adsorbs and positions the workpiece on it through a suction cup. Since the workpiece has different curved surfaces, when an operator is welding, for the part of the workpiece located in the visual occlusion area, the operator needs to squat down or change the angle of the tool for operation, which has problems of inconvenient operation and difficult control of operation accuracy, affecting the operation efficiency and operation quality. Summary of the Utility Model

[0005] Aiming at the disadvantages that the existing workpiece positioning mechanism cannot change the position after positioning the workpiece, resulting in difficult precise operation of the part of the workpiece located in the visual occlusion area and affecting the operation efficiency and operation quality, the utility model provides a multi-angle flipping and positioning mechanism.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A multi-angle flipping and positioning mechanism includes a machine base and a suction and positioning part arranged on the machine base. The machine base includes a base and bearing seats vertically and parallelly fixed on the base. The suction and positioning part includes a flipping seat and a suction component arranged on the flipping seat. Rotating shafts are arranged at both ends of the flipping seat and are rotationally inserted and matched with the bearing seats. A positioning mechanism for making the flipping seat stationary relative to the bearing seat when the flipping seat rotates a certain angle and a locking mechanism for locking the flipping seat and the bearing seat relative to each other when the flipping seat is positioned are arranged on the bearing seats.

[0008] With the above solution, the adsorption and positioning part is rotatably arranged on the machine base. The positioning mechanism can achieve positioning after multi-angle flipping, and the locking mechanism is used to limit the position after positioning. The operator can change the angle of the flipping seat, thereby changing the angle of the workpiece adsorbed by the adsorption component on the flipping seat, exposing the originally blocked part within the visual field, facilitating the operator to carefully grind and polish. The operator can quickly operate without changing the body posture and the angle of the tool, improving the convenience and accuracy of the operation, and thus enhancing the operation efficiency and quality.

[0009] Preferably, the positioning mechanism includes a turntable coaxially fixed with the rotating shaft on the side of the bearing seat away from the flipping seat, a plurality of limiting holes circumferentially spaced around the rotating shaft on the turntable, and a spring steel ball elastically and telescopically arranged on the bearing seat and partially embedded in the corresponding limiting hole after extending.

[0010] With the above solution, when rotating the turntable, when the driving force for driving the turntable to rotate is greater than the elastic force of the spring steel ball, the spring steel ball retracts and the turntable rotates; when the turntable rotates to the next limiting hole each time, the spring steel ball will be embedded in the limiting hole again. At this time, a force needs to be applied again to rotate the turntable until the turntable rotates to the required angle and is positioned by the spring steel ball.

[0011] Preferably, an operating handle for facilitating the driving of its rotation is fixed on the turntable.

[0012] With the above solution, the operating handle facilitates the operator to apply force to drive the turntable to rotate.

[0013] Preferably, the locking mechanism includes a pneumatic brake fixed on the bearing seat. The pneumatic brake has a groove for the partial insertion of the turntable, and braking blocks are telescopically arranged on the inner walls on both sides of the groove and can press against both sides of the turntable after extending.

[0014] With the above solution, the pneumatic brake is used to lock or unlock the turntable. In the normal state, the pneumatic brake is in the braking state, and only during the process of adjusting the angle of the turntable, the pneumatic brake is in the state of releasing the brake.

[0015] Preferably, the adsorption component includes a plurality of positioning seats fixed at intervals along the axial direction of the rotating shaft on the flipping seat and fitting with the inner wall of the workpiece, mounting plates vertically extending from the side walls of the positioning seats, and vacuum suction cups fixed on the mounting plates for adsorbing the inner wall of the workpiece. The vacuum suction cups are connected to an air extraction pump.

[0016] With the above solution, the surface of the positioning seat has a curved surface fitting with the inner wall of the workpiece. After the workpiece is positioned by the positioning seat, the vacuum suction cup adsorbs the inner wall of the workpiece to fix the workpiece.

[0017] Preferably, the rotating shaft and the flipping seat are detachably connected by a T-shaped coupling.

[0018] With the above solution, the rotating shaft is detachably installed on the flipping base, facilitating the disassembly, replacement and assembly of the flipping base.

[0019] Preferably, a handle for easy grasping is fixed on the base and / or the flipping base.

[0020] With the above solution, the setting of the handle facilitates installation and handling.

[0021] Since the utility model adopts the above technical solutions, it has remarkable technical effects: the adsorption positioning part is rotatably arranged on the machine base, the positioning mechanism can realize the positioning after multi-angle flipping, and the locking mechanism is used to realize the limit after positioning. The operator can change the angle of the flipping base, thereby changing the angle of the workpiece adsorbed by the adsorption component on the flipping base, exposing the originally blocked part within the visual field, facilitating the operator to carefully polish. The operator can quickly operate without changing the body posture and the angle of the tool, improving the operation convenience and operation accuracy, and further improving the operation efficiency and operation quality. Description of the Drawings

[0022] Figure 1 is an axonometric view when the multi-angle flipping and positioning mechanism of this embodiment installs the workpiece;

[0023] Figure 2 is an axonometric view of the multi-angle flipping and positioning mechanism of this embodiment;

[0024] Figure 3 is Figure 2 an enlarged view of A of

[0025] Figure 4 is the front view of the multi-angle flipping and positioning mechanism of this embodiment;

[0026] Figure 5 is Figure 4 an enlarged view of B of

[0027] Figure 6 is the left view of the multi-angle flipping and positioning mechanism of this embodiment.

[0028] The names of the parts referred to by each digital label in the above drawings are as follows: 1. Base; 2. Bearing seat; 3. Handle; 4. Flipping base; 5. Positioning seat; 6. Turntable; 601. Limit hole; 7. Operating handle; 8. Pneumatic brake; 801. Groove; 9. Mounting plate; 10. Vacuum chuck; 11. Rotating shaft; 12. T-shaped coupling; 13. Spring steel ball. Detailed Embodiment

[0029] The present utility model will be further described in detail below in conjunction with the drawings and embodiments.

[0030] A multi-angle flipping and positioning mechanism, as shown in Figures 1 to 6 , includes a machine base and an adsorption and positioning part arranged on the machine base. The machine base includes a base 1 and a bearing seat 2 vertically and fixedly arranged on the base 1 in parallel. The adsorption and positioning part includes a flipping seat 4 and an adsorption component arranged on the flipping seat 4. T-shaped couplings 12 are screwed and fixed at both ends of the flipping seat 4, and a rotating shaft 11 that is rotationally matched with the bearing seat 2 is tightly fixed on the T-shaped couplings 12. A turntable 6 is coaxially fixed at the rear end of the rotating shaft 11 after passing through the bearing seat 2. A positioning mechanism for making the turntable 6 stationary relative to the bearing seat 2 when the turntable 6 rotates a certain angle and a locking mechanism for further restricting the rotation of the turntable 6 after the turntable 6 stops are arranged between the turntable 6 and the bearing seat 2.

[0031] See in detail Figure 2 , the adsorption component includes a plurality of positioning seats 5 fixedly arranged at intervals along the axial direction of the rotating shaft 11 on the flipping seat 4. The surface of the positioning seat 5 that fits with the workpiece is an arc surface that completely fits with the inner wall of the workpiece. A mounting plate 9 is vertically fixed on the side wall of the positioning seat 5, and a vacuum chuck 10 is fixed on the mounting plate 9. One end of the vacuum chuck 10 far from the workpiece is connected with an air pipe, and the air pipe is connected with the suction end of an air extraction pump.

[0032] Combined with Figures 3 to 5 , the positioning mechanism includes a plurality of limiting holes 601 evenly arranged at intervals along the circumferential direction of the rotating shaft 11 on the turntable 6. A spring steel ball 13 is fixed on the bearing seat 2. In the normal state, the spring steel ball 13 is partially clamped into the corresponding limiting hole 601. An operation handle 7 for facilitating the driving of its rotation is fixed on the turntable 6. When an operator applies a certain force, the spring steel ball 13 can be retracted. After the turntable 6 rotates to the required angle, when the spring steel ball 13 is partially embedded into the corresponding limiting hole 601, releasing the operation handle 7 can achieve positioning.

[0033] The locking mechanism includes a pneumatic brake 8 fixed on the bearing seat 2. The brand of the pneumatic brake 8 is AI RCKD and the model is DBF-L10. The pneumatic brake 8 has a groove 801 into which a part of the turntable 6 can be inserted. On both inner walls of the groove 801, braking blocks that can extend and press against both sides of the turntable 6 to restrict the rotation of the turntable 6 are telescopically arranged. The control switch of the pneumatic brake 8 is a normally closed momentary switch. In this embodiment, the control switch is a foot-operated type, that is, in the normal state, it is in the braking state; when the operator steps on it, it is in the state of releasing the brake.

[0034] Handles 3 for facilitating grasping are fixed on both sides of the base 1 and the flipping seat 4.

[0035] The working process is as follows:

[0036] 1. The operator places the workpiece on the positioning seat 5 and turns on the air extraction pump to achieve negative pressure adsorption of the workpiece;

[0037] 2. After polishing the parts within the visual range, step on the foot pedal control switch and hold the operation handle 7 to rotate the turntable 6. After rotating to the required angle, release the operation handle 7 and the control switch, and continue polishing.

[0038] 3. Repeat step 2 until the polishing is completed.

[0039] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solution falling within the idea of the present invention belongs to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A multi-angle flip positioning mechanism, comprising a base and an adsorption positioning portion disposed on the base, characterized in that: The machine base comprises a base (1) and a bearing seat (2) fixed vertically and parallel to the base (1); the adsorption positioning part comprises a flip seat (4) and an adsorption assembly arranged on the flip seat (4); both ends of the flip seat (4) are provided with rotating shafts (11) which are rotatably plugged with the bearing seat (2); a positioning mechanism is provided on the bearing seat (2) for achieving the stationary state of the flip seat (4) relative to the bearing seat (2) after the flip seat (4) rotates a certain angle; and a locking mechanism is provided on the bearing seat (2) for achieving the relative locking of the flip seat (4) and the bearing seat (2) after the flip seat (4) is positioned.

2. The multi-angle flip positioning mechanism according to claim 1, characterized in that: The positioning mechanism comprises a turntable (6) coaxially fixed with the rotating shaft (11) on a side of the bearing seat (2) away from the turning seat (4), a plurality of limiting holes (601) arranged on the turntable (6) at intervals in the circumferential direction around the rotating shaft (11), and a spring steel ball (13) elastically and telescopically arranged on the bearing seat (2) and capable of being partially embedded in the corresponding limiting hole (601) after being extended.

3. A multi-angle flip positioning mechanism according to claim 2, characterized in that: An operating handle (7) is fixed on the rotating disk (6) for driving the rotating disk to rotate.

4. The multi-angle flip positioning mechanism according to claim 2, characterized in that: The locking mechanism comprises a pneumatic brake (8) fixed on the bearing seat (2), the pneumatic brake (8) having a groove (801) for partially inserting the rotating disk (6), and brake blocks which can be pressed against the two sides of the rotating disk (6) after being extended are telescopically arranged on the inner walls of both sides of the groove (801).

5. The multi-angle flip positioning mechanism according to claim 1, characterized in that: The adsorption assembly comprises a plurality of positioning seats (5) fixed at intervals along the axial direction of a rotating shaft (11) on a turning seat (4) and in contact with the inner wall of a workpiece, a mounting plate (9) extending vertically from the side wall of the positioning seat (5), and a vacuum suction cup (10) fixed on the mounting plate (9) for adsorbing the inner wall of the workpiece, wherein the vacuum suction cup (10) is connected to an air pump.

6. The multi-angle flip positioning mechanism according to claim 1, characterized in that: The rotating shaft (11) and the turning seat (4) are detachably connected via a T-shaped coupling (12).

7. The multi-angle flip positioning mechanism according to claim 1, characterized in that: A handle (3) that is easy to grasp is fixed on the base (1) and / or the turning base (4).

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