Multipurpose rotating table

Abstract

The utility model relates to the field of workbenches, in particular to a multipurpose rotary workbench. Comprising a base, a rotary table plate rotationally arranged on the base and a fixing piece arranged on the rotary table plate and used for fixing a grinding ball, the fixing piece comprises a fixing bottom plate arranged on the rotary table plate and a fixing pressing plate arranged above the rotary table plate, and an external driving piece is installed at the bottom of the base; an auxiliary part used for assisting the grinding ball to be fixed to the rotary table plate is arranged on the rotary table plate and comprises an auxiliary supporting ring attached to the outer surface of the bottom of the grinding ball and an adjusting ring rotationally arranged on the top of the rotary table plate. The grinding device has the advantages that the auxiliary supporting ring is used for supporting the grinding balls, the balls of different specifications always have a height section diameter matched with the auxiliary supporting ring and then are matched with the fixing pressing plates of the balls, and the situation that the grinding precision is reduced due to the fact that the grinding balls deviate when rotating due to centrifugal force is avoided.

Description

Technical Field

[0001] The utility model relates to the field of workbenches, in particular to a multi-purpose rotary workbench. Background Art

[0002] 1. The hard seal ball and valve seat are usually ground by a grinding machine, but after grinding, there will be slight leakage because the machine is under pressure. 2. Large grinding machines can solve the problem of grinding large-caliber hard seal balls and valve seats due to their high cost and small market. 3. The channel of the conventionally ground ball product needs to be manually ground piece by piece, resulting in poor appearance after grinding, with patches of spots. This turntable can be used to turn the ball and then grind it to ensure consistent appearance. The effect after grinding is the same as the wire drawing process. When grinding the grinding ball using an electric turntable composed of a turntable, a fixed pressure plate and a driving part, since there are many specifications of the grinding ball, and the bottom of the grinding ball is in point contact with the turntable, the ball is not fixed to a high degree, and it may be offset due to the centrifugal force during rotation. However, the arc groove with a fixed opening on the turntable is not suitable for balls of multiple specifications. Summary of the invention

[0003] The technical problem to be solved by the utility model is: when grinding a grinding ball using an electric turntable composed of a turntable, a fixed pressure plate and a driving member, since the grinding balls have various specifications and the bottom of the grinding balls are in point contact with the turntable, the fixation degree of the balls is not high, and the balls may be displaced due to the centrifugal force during rotation. However, the arc groove with a fixed opening on the turntable is not suitable for balls of various specifications.

[0004] To solve the above problems, the technical solution adopted by the utility model is: a multi-purpose rotary worktable, including a base, a rotary table rotatably arranged on the base, and a fixing part arranged on the rotary table for fixing the grinding ball, the fixing part includes a fixed bottom plate arranged on the rotary table and a fixed pressure plate arranged above the rotary table, an external driving part is installed at the bottom of the base, and an auxiliary part for assisting the grinding ball to be fixed on the rotary table is provided on the rotary table, the auxiliary part includes an auxiliary support ring attached to the outer surface of the bottom of the grinding ball and an adjustment ring rotatably arranged on the top of the rotary table.

[0005] The beneficial effects of the utility model are as follows: the auxiliary support ring is used to support the grinding ball, and the balls of different specifications always have a height cross-sectional diameter that matches the auxiliary support ring, and then cooperate with the fixed pressure plate itself to avoid the grinding ball being displaced due to centrifugal force during rotation, resulting in a decrease in grinding accuracy.

[0006] As a further improvement of the utility model, the technical problem to be solved is: how to adjust the position of the auxiliary support ring so that it is always in contact with grinding balls of different specifications.

[0007] In order to solve the above technical problems, the utility model further improves the technical solution adopted as follows: the auxiliary support ring is provided with multiple mounting plates in the circumference, a guide column is provided at the bottom of the mounting plate, an auxiliary block is provided on the outward side of the guide column, and an adjustment block for abutting against the auxiliary block is provided on the adjustment ring, the bottom surface of the auxiliary block and the top surface of the adjustment block are mutually matching inclined surfaces, the guide column is slidably connected to the turntable plate, a guide hole groove matching the guide column is opened in the turntable plate, and a reset spring is provided between the inner wall of the guide hole groove and the bottom end of the guide column.

[0008] The beneficial effect of the above improvement is: the adjusting ring is used to rotate the adjusting block so that the top surface of the adjusting block abuts against the bottom surface of the auxiliary block at different positions, pushing the auxiliary block upward and returning it to its original position under the action of the return spring, so that the auxiliary block is suitable for grinding balls of different specifications.

[0009] As a further improvement of the utility model, the technical problem to be solved is: how to fix the adjustment ring to prevent the adjustment ring from rotating on its own.

[0010] In order to solve the above technical problems, the utility model further improves the technical solution adopted as follows: a plurality of adjustment holes are opened on the adjustment ring, a positioning hole matching the adjustment hole is opened on the top surface of the turntable plate, and a positioning screw for passing through the adjustment hole and threadedly connected with the positioning hole is installed on the adjustment ring.

[0011] The beneficial effect of the above improvement is that by using the cooperation between the positioning screw and the adjustment hole, different adjustment holes correspond to the positions where the auxiliary support ring abuts against balls of different specifications.

[0012] The utility model further improves the technical solution adopted as follows: two screw rods are arranged on the rotary table, the two ends of the fixed pressure plate are sleeved outside the two threads, and a clamping nut for clamping the fixed pressure plate is screwed on the threads of the screw rods.

[0013] The beneficial effect of the above improvement is that the fixing pressure plate can be pressed against the grinding ball by utilizing the cooperation between the clamping nut and the screw rod.

[0014] The utility model further improves the technical solution adopted as follows: the driving member includes a driven bevel gear rotatably arranged at the bottom of the base and coaxial with the turntable plate and an active bevel gear rotatably arranged at the bottom of the base and meshing with the driven bevel gear. A motor for rotating the active bevel gear is installed at the bottom of the base.

[0015] The beneficial effect of the above improvement is: by utilizing the cooperation between the active bevel gear and the driven bevel gear, the direction of the motor is changed, and the rotation of the rotary table is driven to realize the effect of rotating the fixed sphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural diagram of the auxiliary parts in the utility model;

[0018] Figure 3 This is a structural diagram of the matching relationship between the fixed pressure plate and the adjustment ring in the utility model. The text labels in the figure represent: 1, base; 2, motor; 3, rotary table; 4, fixed bottom plate; 5, fixed pressure plate; 6, auxiliary support ring; 7, adjustment ring; 8, auxiliary block; 9, adjustment block; 10, mounting plate; 11, guide column; 12, positioning screw; 13, adjustment hole; 14, screw; 15, clamping nut. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0020] Embodiment 1:

[0021] like Figure 1-3As shown, the multi-purpose rotary workbench includes a base 1, a rotary table 3 rotatably arranged on the base 1 and a fixing part arranged on the rotary table 3 for fixing the grinding ball, the fixing part includes a fixed bottom plate 4 arranged on the rotary table 3 and a fixed pressure plate 5 arranged above the rotary table 3, an external driving part is installed at the bottom of the base 1, and the rotary table 3 is provided with an auxiliary part for assisting the grinding ball to be fixed on the rotary table 3, the auxiliary part includes an auxiliary support ring 6 attached to the outer surface of the bottom of the grinding ball and an adjustment ring 7 rotatably arranged on the top of the rotary table 3. Auxiliary support ring 6 is provided with a plurality of mounting plates 10 in the circumference, and guide columns 11 are provided at the bottom of mounting plate 10, and auxiliary blocks 8 are provided on the outward side of guide columns 11, and adjustment ring 7 is provided with adjustment blocks 9 for abutting against auxiliary blocks 8, and the bottom surface of auxiliary blocks 8 and the top surface of adjustment blocks 9 are mutually matching inclined surfaces, and guide columns 11 are slidably connected with the turntable 3, and guide holes matching with guide columns 11 are provided in the turntable 3, and a reset spring is provided between the inner wall of the guide holes and the bottom end of the guide columns 11. A plurality of adjustment holes 13 are provided on the adjustment ring 7, and positioning holes matching with adjustment holes 13 are provided on the top surface of the turntable 3, and positioning screws 12 for penetrating the adjustment holes 13 and being threadedly connected with the positioning holes are installed on the adjustment ring 7. Two screws 14 are provided on the rotary table 3, and the two ends of the fixed pressure plate 5 are sleeved outside the two screws 14. The screws 14 are threaded with a clamping nut 15 for clamping the fixed pressure plate 5. The driving member includes a driven bevel gear rotatably provided at the bottom of the base 1 and coaxial with the rotary table 3, and an active bevel gear rotatably provided at the bottom of the base 1 and meshing with the driven bevel gear. The motor 2 for rotating the active bevel gear is installed at the bottom of the base 1.

[0022] The auxiliary support ring 6 is used to support the grinding ball. Balls of different specifications always have a height cross-sectional diameter that matches the auxiliary support ring 6, and then cooperate with the fixed pressure plate 5 to avoid the grinding ball being offset due to centrifugal force during rotation, resulting in a decrease in grinding accuracy. The adjusting ring 7 is used to rotate the adjusting block 9 so that the top surface of the adjusting block 9 abuts against the bottom surface of the auxiliary block 8 at different positions, and the auxiliary block 8 moves upward and is reset under the action of the reset spring, so that the auxiliary block 8 is suitable for grinding balls of different specifications. The positioning screw 12 cooperates with the adjustment hole 13, and different adjustment holes 13 correspond to the position where the auxiliary support ring 6 abuts against balls of different specifications. The clamping nut 15 cooperates with the screw 14 to achieve the clamping of the grinding ball by the fixed pressure plate 5. The active bevel gear cooperates with the driven bevel gear to achieve the change of the direction of the motor 2, driving the rotation of the turntable 3 to achieve the effect of rotating the fixed ball.

[0023] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0024] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. Multi-purpose rotary table, Features: The invention comprises a base (1), a turntable (3) rotatably arranged on the base (1), and a fixing part arranged on the turntable (3) for fixing a grinding ball, wherein the fixing part comprises a fixing bottom plate (4) arranged on the turntable (3) and a fixing pressure plate (5) arranged above the turntable (3), an external driving part is installed at the bottom of the base (1), and an auxiliary part for assisting the grinding ball to be fixed on the turntable (3) is arranged on the turntable (3), and the auxiliary part comprises an auxiliary support ring (6) attached to the outer surface of the bottom of the grinding ball and an adjusting ring (7) rotatably arranged on the top of the turntable (3).

2. The multi-purpose rotary table according to claim 1, Features: The auxiliary support ring (6) is provided with a plurality of mounting plates (10) in the circumferential direction, a guide column (11) is provided at the bottom of the mounting plate (10), an auxiliary block (8) is provided on the outward side of the guide column (11), an adjustment block (9) for abutting against the auxiliary block (8) is provided on the adjustment ring (7), the bottom surface of the auxiliary block (8) and the top surface of the adjustment block (9) are mutually matching inclined surfaces, the guide column (11) is slidably connected to the turntable (3), a guide hole groove matching with the guide column (11) is provided in the turntable (3), and a return spring is provided between the inner wall of the guide hole groove and the bottom end of the guide column (11).

3. The multi-purpose rotary table according to claim 2, Features: The adjusting ring (7) is provided with a plurality of adjusting holes (13), the top surface of the rotating table (3) is provided with positioning holes that match the adjusting holes (13), and the adjusting ring (7) is provided with positioning screws (12) that penetrate the adjusting holes (13) and are threadedly connected to the positioning holes.

4. The multi-purpose rotary table according to claim 1, Features: Two screw rods (14) are arranged on the rotary table (3), and the two ends of the fixed pressure plate (5) are sleeved outside the two screw rods (14). The screw rods (14) are threadedly provided with a clamping nut (15) for clamping the fixed pressure plate (5).

5. The multi-purpose rotary table according to claim 1, Features: The driving member comprises a driven bevel gear rotatably arranged at the bottom of the base (1) and coaxial with the rotary table (3) and a driving bevel gear rotatably arranged at the bottom of the base (1) and meshing with the driven bevel gear for transmission. A motor (2) for rotating the driving bevel gear is installed at the bottom of the base (1).

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