CN222958149U - A precision positioning indexing workbench - Google Patents

Abstract

The utility model discloses a fine positioning indexing workbench, and belongs to the technical field of machining. The structure of the device comprises a motor seat fixedly connected to a device frame, a speed reducer fixedly connected to the motor seat, a servo motor in transmission connection with the input end of the speed reducer, a gear fixedly connected to the output end of the speed reducer, a bearing fixedly connected to the device frame, a workbench in rotation connection with the bearing, a gear ring fixedly connected to the workbench, meshing transmission of the gear ring and the gear, a cylinder fixedly connected to the motor seat or the device frame, a pin connected to the free end of the cylinder, and a plurality of pin sleeves fixedly connected to the workbench along the circumferential direction, wherein the pin sleeves are mutually matched through guide inclined planes. The gear ring is roughly positioned, then the pin shaft is used for fine positioning, and after the pin shaft is worn, only the pin shaft is needed to be replaced, so that the use cost is low. The utility model has simple structure, accurate and reliable positioning, good stability, independent installation and strong applicability.

Description

Fine positioning indexing workbench

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a fine positioning indexing workbench.

Background

The indexing fixture is a fixture for fixing a workpiece and driving the workpiece to rotate. The most common application scenario for indexing fixtures is in the field of machine manufacturing, where it is often necessary to rotate a workpiece along different axes for machining. For example, when a circular or hexagonal workpiece is machined on a lathe, the workpiece is rotated by an index jig by a certain angle and then machined, thereby achieving a desired effect. In addition, the indexing fixture is also widely applied to industries such as numerical control machine tools, cutting machining, bench machining and the like, and the machining efficiency and the product quality are improved. In the prior art, although the number of selectable types of the indexing fixture is large, most of the indexing fixtures adopt a cam mechanism for indexing, the price of a cam machine is high, and the whole cam machine needs to be replaced after the cam is worn for a long time.

Disclosure of Invention

The first technical problem to be solved by the utility model is that the conventional indexing fixture adopts a cam mechanism for indexing, the cam machine is high in price, and the whole cam machine can only be replaced after the cam is worn, so that the high use cost is brought.

The second technical problem to be solved by the utility model is how to fully ensure positioning accuracy and stability when other indexing mechanisms are adopted to reduce cost.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

The utility model provides a fine positioning indexing table, including servo motor, the speed reducer, the gear, a bearing, a workbench, the bolt, the cylinder, the ring gear, the motor cabinet, equipment frame, the pin bush, the convex head, the cell body, the direction inclined plane, wherein, fixedly connected with motor cabinet on equipment frame, fixedly connected with speed reducer on the motor cabinet, servo motor is connected with the input transmission of speed reducer, the output at speed reducer concreties has the gear, fixedly connected with bearing on equipment frame, the workstation rotates to be connected on the bearing, fixedly connected with ring gear on the workstation, ring gear and gear engagement transmission, fixedly connected with cylinder on motor cabinet or equipment frame, be connected with the bolt at the free end of cylinder, fixedly connected with a plurality of pin bushes along circumferencial direction on the workstation, have the convex head on the pin bush, have the cell body on the bolt, cell body and convex head mutually support, be equipped with the direction inclined plane at the tip of convex head or the tip of cell body.

Preferably, the speed reducer is a planetary speed reducer.

Preferably, the number of the pin sleeves is 8, and the 8 pin sleeves are uniformly distributed in the circumferential direction.

Preferably, the pin bush is positioned on the bottom surface of the workbench, the bolt is positioned below the pin bush, the movement stroke of the air cylinder is vertical, the raised head is positioned at the bottom end of the pin bush, and the groove body is positioned at the top end of the bolt.

In addition to the above configuration, the present utility model may further include a peripheral protection portion and an electrical control portion at the time of actual selection, which may be implemented according to common general knowledge in the art, and thus described.

The utility model provides a fine positioning indexing workbench. According to the technical scheme, the pair of tapered roller bearings are fixed on the main body frame of the equipment, so that runout of the workbench in the axial and radial application range is ensured. A servo motor is used for driving the rotary workbench to rotate through the gear ring, and the rotary workbench stops when rotating to the corresponding position. In order to solve the problem of inaccurate positioning caused by gear clearances in the action mode, 8 positioning pin sleeves are uniformly arranged on the workbench, an air cylinder is arranged on the main body frame and drives a pin to move up and down, when the pin is rotated to a corresponding position, the air cylinder acts, the pin with taper is inserted into the pin sleeve, accurate positioning of the position is realized, and when equipment fails, the pin is inserted into the pin sleeve, so that an alarm can be given by utilizing a detection switch.

The utility model discloses a fine positioning indexing workbench. According to the technical scheme, the gear ring is roughly positioned, then the pin shaft is used for fine positioning, after the pin shaft is worn, only the pin shaft needs to be replaced, and the use cost is low. The utility model has simple structure, accurate and reliable positioning, good stability, independent installation and strong applicability.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a bottom view of the present utility model;

FIG. 3 is a top view of the present utility model;

FIG. 4 is a cross-sectional view of the present utility model;

FIG. 5 is a partial cross-sectional view of the present utility model;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

FIG. 7 is a perspective view of the present utility model in a cut-away state;

FIG. 8 is a perspective view of the present utility model;

In the figure:

1. Servo motor	2. Speed reducer	3. Gear wheel	4. Bearing
				5. Working table	6. Bolt	7. Cylinder	8. Gear ring
9. Motor base	10. Equipment frame	11. Pin bush	12. Raised head
				13. Groove body	14. And a guiding inclined plane.

Detailed Description

Hereinafter, embodiments of the present utility model will be described in detail. In order to avoid unnecessary detail, well-known structures or functions will not be described in detail in the following embodiments. Approximating language, as used in the following examples, may be applied to create a quantitative representation that could permissibly vary without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

Example 1

The utility model provides a fine positioning indexing table, as shown in fig. 1-6, including servo motor 1, speed reducer 2, gear 3, bearing 4, workstation 5, bolt 6, cylinder 7, ring gear 8, motor cabinet 9, equipment frame 10, pin bush 11, protruding head 12, cell body 13, guide slope 14, wherein, fixedly connected with motor cabinet 9 on equipment frame 10, fixedly connected with speed reducer 2 on motor cabinet 9, servo motor 1 is connected with the input transmission of speed reducer 2, fixedly connected with gear 3 at the output of speed reducer 2, fixedly connected with bearing 4 on equipment frame 10, workstation 5 swivelling joint is on bearing 4, fixedly connected with ring gear 8 on workstation 5, the meshing transmission of ring gear 8 and gear 3, fixedly connected with cylinder 7 on motor cabinet 9 or equipment frame 10, be connected with bolt 6 at the free end of cylinder 7, fixedly connected with a plurality of pin bushes 11 along the circumferencial direction on workstation 5, have protruding head 12 on pin bush 11, have cell body 13 on bolt 6, cell body 13 and protruding head 12 mutually support with protruding head 12, be equipped with guide slope's 14 at the tip or the end of protruding head 12. Wherein the speed reducer 2 is a planetary speed reducer. The number of the pin sleeves 11 is 8, and the 8 pin sleeves 11 are uniformly distributed in the circumferential direction. The pin bush 11 is located on the bottom surface of the workbench 5, the bolt 6 is located below the pin bush 11, the movement stroke of the air cylinder 7 is vertical, the raised head 12 is located at the bottom end of the pin bush 11, and the groove body 13 is located at the top end of the bolt 6.

Example 2

As shown in fig. 1-6, a servo motor 1 is fixed on a motor seat 9 through a speed reducer 2, and the gap between a gear 3 and a gear ring 8 can be adjusted by adjusting the motor seat 9 so as to achieve a proper gap. The cylinder 7 is installed on motor cabinet 9, and bolt 6 is installed on the cylinder 7. The table 5 is mounted on the apparatus main body frame 10 through the bearing 4, and the ring gear 8 is mounted on the table 5 through the spigot positioning. The pin bush 11 with the outer diameter positioning is arranged on the workbench 5 and is used as a wearing part, so that the manufacturing cost is low and the replacement is simple. In the equipment, the servo motor 1 drives the gear 3 to rotate through the speed reducer 2, the workbench 5 is stopped after rotating by a certain angle, the air cylinder 7 moves upwards, the bolt 6 with taper is inserted into the pin bush 11 on the workbench 5, after detecting that a detection signal is in place, an instruction is sent to the upper computer to perform production operation, after the operation is completed, the air cylinder 7 moves downwards, the bolt 6 withdraws, the servo motor 1 rotates to drive the workbench 5 to rotate to the next station, so that repeated operation activity is realized, the debugging is simple, and the use is convenient.

The utility model can precisely position by the bolt (also called as a positioning pin) and ensure the stability of the operation process. The gear ring is in a gear reduction structure, so that the impact is small during rotation, and the operation is stable. The whole independent structure can be used for various operations.

As an 8-station fine positioning indexing workbench, the utility model can be used for automatically replacing parts, realizes continuous processing of the parts and has very wide effect. The utility model has simple structure, convenient installation and debugging and reliable performance. The workbench is provided with a mounting and fixing hole which can be used for clamping parts or fixing pneumatic hydraulic clamps and the like.

The utility model has low requirements on working conditions, can adapt to severe working environments, and is particularly suitable for automatic welding operation. The quick-wear part is easy to replace, and the use cost of the whole machine is low.

The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the scope of the present utility model should be included in the protection scope of the present utility model.

Claims (4)

1. A precision positioning indexing workbench, characterized in that it comprises a servo motor (1), a reducer (2), a gear (3), a bearing (4), a workbench (5), a latch (6), a cylinder (7), a gear ring (8), a motor seat (9), an equipment frame (10), a pin sleeve (11), a convex head (12), a groove body (13), and a guide inclined surface (14), wherein the motor seat (9) is fixedly connected to the equipment frame (10), the reducer (2) is fixedly connected to the motor seat (9), the servo motor (1) is drivingly connected to the input end of the reducer (2), the gear (3) is fixedly connected to the output end of the reducer (2), and the motor seat (9) is fixedly connected to the equipment frame (10). A bearing (4) is connected, a workbench (5) is rotatably connected to the bearing (4), a gear ring (8) is fixedly connected to the workbench (5), the gear ring (8) is meshed with the gear (3) for transmission, a cylinder (7) is fixedly connected to the motor base (9) or the equipment frame (10), a latch (6) is connected to the free end of the cylinder (7), a plurality of pin sleeves (11) are fixedly connected to the workbench (5) along the circumferential direction, a convex head (12) is provided on the pin sleeve (11), a groove body (13) is provided on the latch pin (6), the groove body (13) and the convex head (12) cooperate with each other, and a guide inclined surface (14) is provided at the end of the convex head (12) or the end of the groove body (13). 2. A precision positioning indexing workbench according to claim 1, characterized in that the reducer (2) is a planetary reducer. 3. A precision positioning indexing workbench according to claim 1, characterized in that the number of the pin sleeves (11) is 8, and the 8 pin sleeves (11) are evenly spaced in the circumferential direction. 4. A precision positioning and indexing workbench according to claim 1, characterized in that the pin sleeve (11) is located on the bottom surface of the workbench (5), the latch (6) is located below the pin sleeve (11), the movement stroke of the cylinder (7) is vertical, the protrusion (12) is located at the bottom end of the pin sleeve (11), and the groove (13) is located at the top end of the latch (6).