Positioning device for belt pulley production

Abstract

The utility model belongs to the technical field of belt pulley machining, and particularly relates to a positioning device for belt pulley production. The positioning device comprises a main body base, the top end of the main body base is fixedly connected with a working motor, the output end of the working motor is fixedly connected with a positioning frame, and a positioning screw is arranged in the positioning frame; one end of the positioning screw is fixedly connected with a positioning knob, the outer wall of the positioning screw is in threaded connection with a threaded sliding block slidably connected with the inner wall of the positioning frame, the positioning plate is arranged, the threaded sliding block slidably drives three sets of sliding hole plates to synchronously move, and the sliding hole plates slidably drive positioning guide grooves to move. The positioning guide grooves slide to drive the limiting strips on the outer walls of the telescopic plates to slide along the inner wall of the positioning frame through the positioning guide columns, then the telescopic plates slide to drive the positioning plates to be attached to the inner wall of the belt pulley body, and rapid center positioning operation of the belt pulley body is achieved through synchronous relative movement of the three positioning plates. And the eccentric phenomenon of the belt pulley main body during processing is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulley processing, and in particular relates to a positioning device used for pulley production. Background Art

[0002] Pulleys are hub-type parts, which are generally relatively large in size. The manufacturing process is generally based on casting and forging. Pulleys are mainly used in situations where power is transmitted over long distances, such as automobiles, mining machinery, mechanical processing equipment, textile machinery, etc. When producing pulleys, the working surface of the pulley needs to be positioned and then polished.

[0003] For example, the patent CN218747052U discloses a positioning device for pulley production. This solution includes a base, a side plate fixedly connected to one side of the base, a motor fixedly connected to the surface of one side of the side plate, and a rotating shaft rotatably connected to the surface of the other side of the side plate. A pulley body is sleeved on the outer side of the rotating shaft, and a positioning mechanism is provided on the surface of the rotating shaft. The positioning mechanism includes a fixed plate, the fixed plate is fixed to the surface of the rotating shaft, a movable limiting plate is sleeved on the outer side of the surface of the rotating shaft, a nut is movably connected to the surface of the rotating shaft, and a fixing ring is symmetrically fixedly connected to the surface of the rotating shaft. A number of hydraulic telescopic rods are fixedly connected to the outer sides of the fixing rings on both sides, and support blocks are fixedly connected to the ends of the hydraulic telescopic rods. By setting the positioning mechanism, the inside and both sides of the pulley body are fixed at the same time, so that the pulley body is fixed more stably, ensuring smooth rotation during grinding and making the grinding more uniform.

[0004] The existing positioning device for pulley production generally clamps both sides of the pulley when in use, but when the pulley rotates, the center of the pulley does not coincide with the rotation center, resulting in eccentricity during pulley processing. In view of this, we propose a positioning device for pulley production. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning device for pulley production in order to solve the above-mentioned technical problems, so as to avoid the problem of eccentricity during pulley processing caused by the misalignment between the center of the pulley and the rotation center.

[0006] In view of this, the utility model provides a positioning device for pulley production, comprising a main body base, the top of the main body base is fixedly connected to a working motor, the output end of the working motor is fixedly connected to a positioning frame, a positioning screw is arranged inside the positioning frame, one end of the positioning screw is fixedly connected to a positioning knob, the outer wall of the positioning screw is threadedly connected to a threaded slider slidably connected to the inner wall of the positioning frame, the outer wall of the threaded slider is fixedly connected to a sliding hole plate, the outer wall of the sliding hole plate is provided with a positioning guide groove, the outer wall of the positioning guide groove is movably connected to a telescopic plate, the connecting part of the telescopic plate and the positioning guide groove is fixedly connected to a positioning guide column, the outer wall of the telescopic plate is fixedly connected to a limiting strip slidably connected to the inner wall of the positioning frame, one end of the telescopic plate is fixedly connected to the positioning plate, and the outer wall of the positioning plate is fitted with a pulley body;

[0007] A grinding assembly is located below the pulley body and is used for grinding the working surface of the pulley body.

[0008] Based on the above structure, the sliding of the threaded slider drives the three groups of sliding orifice plates to move synchronously, and the sliding of the sliding orifice plate drives the positioning guide groove to move, so that the sliding of the positioning guide groove drives the limit strip on the outer wall of the telescopic plate to slide along the inner wall of the positioning frame through the positioning guide column, and then the sliding of the telescopic plate drives the positioning plate to fit with the inner wall of the pulley body. Through the synchronous relative movement of the three groups of positioning plates, the rapid center positioning operation of the pulley body is realized, avoiding eccentricity during the processing of the pulley body.

[0009] Preferably, the sliding orifice plates are provided in three groups, and the three groups of sliding orifice plates are distributed at equal angles around the threaded slider.

[0010] Preferably, two groups of positioning guide grooves are provided, and the two groups of positioning guide grooves are parallel.

[0011] Preferably, the telescopic plate forms a telescopic structure with the positioning frame through the positioning guide groove and the positioning guide column, the cross section of the positioning plate is arc-shaped, and the outer shape of the positioning plate is "L"-shaped.

[0012] Preferably, the grinding assembly comprises:

[0013] A grinding base, the outer wall of the main base is fixedly connected to the grinding base, a lifting screw is arranged on the top of the grinding base, one end of the lifting screw is fixedly connected to a hand wheel, the outer wall of the lifting screw is threadedly connected to a connecting slider, the top of the connecting slider is fixedly connected to a sliding guide block, the top of the sliding guide block is slidably connected to a lifting guide block, the connecting part of the sliding guide block and the lifting guide block is fixedly connected to a fitting strip, the top of the lifting guide block is fixedly connected to a lifting plate, the bottom edge of the lifting plate is fixedly connected to a limiting rod slidably connected to the inner wall of the grinding base, and the top of the lifting plate is fixedly connected to a grinding stone that fits the working surface of the pulley body.

[0014] Preferably, the connecting surface between the sliding guide block and the lifting guide block is inclined.

[0015] Preferably, four groups of the limiting rods are provided, and the four groups of the limiting rods are located at the four corners of the edge of the lifting plate.

[0016] The beneficial effects of the utility model are:

[0017] 1. The positioning device used for pulley production, by setting a positioning plate, the sliding of the threaded slider drives the three sets of sliding hole plates to move synchronously, the sliding of the sliding hole plate drives the positioning guide groove to move, so that the sliding of the positioning guide groove drives the limit strip on the outer wall of the telescopic plate to slide along the inner wall of the positioning frame through the positioning guide column, and then the sliding of the telescopic plate drives the positioning plate to fit with the inner wall of the pulley body, and the three sets of positioning plates move synchronously relative to each other, so as to realize the rapid center positioning operation of the pulley body, and avoid the eccentricity during the processing of the pulley body.

[0018] 2. The positioning device for pulley production is provided with a sliding guide block and a lifting guide block. The sliding guide block slides through the interlocking strip to drive the lifting guide block and the grinding base to vertically lift and lower. The movement of the lifting guide block drives the limit rod at the bottom edge of the lifting plate to slide vertically along the inner wall of the grinding base, which is beneficial to improve the lifting stability of the lifting plate. The movement of the lifting plate drives the grinding stone to fit the working surface of the pulley body, which is convenient for the relative movement of the pulley body and the grinding stone to realize the grinding operation of the working surface of the pulley body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

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

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning frame of the utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 It is a schematic diagram of the grinding base structure of the utility model.

[0024] The symbols in the figure are:

[0025] 1. Main base; 2. Working motor; 3. Positioning frame; 4. Positioning screw; 5. Positioning knob; 6. Threaded slider; 7. Sliding hole plate; 8. Positioning guide groove; 9. Telescopic plate; 10. Positioning guide column; 11. Limiting strip; 12. Positioning plate; 13. Pulley body; 14. Grinding base; 15. Lifting screw; 16. Handwheel; 17. Connecting slider; 18. Sliding guide block; 19. Lifting guide block; 20. Fitting strip; 21. Lifting plate; 22. Limiting rod; 23. Grinding stone. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 - Figure 5 This application is described in further detail.

[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0028] The embodiment of the present application discloses a positioning device for pulley production, including a main body base 1, the top of the main body base 1 is fixedly connected to a working motor 2, the output end of the working motor 2 is fixedly connected to a positioning frame 3, a positioning screw 4 is arranged inside the positioning frame 3, one end of the positioning screw 4 is fixedly connected to a positioning knob 5, the outer wall of the positioning screw 4 is threadedly connected to a threaded slider 6 slidably connected to the inner wall of the positioning frame 3, the outer wall of the threaded slider 6 is fixedly connected to a sliding hole plate 7, the outer wall of the sliding hole plate 7 is provided with a positioning guide groove 8, the outer wall of the positioning guide groove 8 is movably connected to a telescopic plate 9, the connecting portion of the telescopic plate 9 and the positioning guide groove 8 is fixedly connected to a positioning guide column 10, the outer wall of the telescopic plate 9 is fixedly connected to a limit strip 11 slidably connected to the inner wall of the positioning frame 3, one end of the telescopic plate 9 is fixedly connected to a positioning plate 12, and the outer wall of the positioning plate 12 is fitted with a pulley body 13;

[0029] The grinding assembly is located below the pulley body 13 and is used for grinding the working surface of the pulley body 13 .

[0030] Based on the above structure, the sliding of the threaded slider 6 drives the three groups of sliding hole plates 7 to move synchronously, and the sliding of the sliding hole plate 7 drives the positioning guide groove 8 to move, so that the positioning guide groove 8 slides through the positioning guide column 10 to drive the limit strip 11 on the outer wall of the telescopic plate 9 to slide along the inner wall of the positioning frame 3, and then the sliding of the telescopic plate 9 drives the positioning plate 12 to fit with the inner wall of the pulley body 13. Through the synchronous relative movement of the three groups of positioning plates 12, the rapid center positioning operation of the pulley body 13 is realized, thereby avoiding eccentricity during the processing of the pulley body 13.

[0031] In one embodiment, three groups of sliding orifice plates 7 are provided, and the three groups of sliding orifice plates 7 are distributed at equal angles around the threaded slider 6 .

[0032] In this embodiment, the three groups of positioning plates 12 move relative to each other synchronously to achieve a rapid center positioning operation on the pulley body 13, thereby avoiding eccentricity during the processing of the pulley body 13.

[0033] In one embodiment, two groups of positioning guide grooves 8 are provided, and the two groups of positioning guide grooves 8 are parallel.

[0034] In this embodiment, the sliding of the sliding hole plate 7 drives the two groups of positioning guide grooves 8 to move synchronously, which is beneficial to improving the stability of the limiting strip 11 on the outer wall of the telescopic plate 9 sliding along the inner wall of the positioning frame 3.

[0035] In one embodiment, the telescopic plate 9 forms a telescopic structure with the positioning frame 3 through the positioning guide groove 8 and the positioning guide column 10. The cross section of the positioning plate 12 is arc-shaped, and the outer shape of the positioning plate 12 is "L"-shaped.

[0036] In this embodiment, the positioning guide groove 8 slides through the positioning guide column 10 to drive the limit strip 11 on the outer wall of the telescopic plate 9 to slide along the inner wall of the positioning frame 3, and then the sliding of the telescopic plate 9 drives the positioning plate 12 to fit with the inner wall of the pulley body 13, thereby realizing the sliding operation of the positioning plate 12.

[0037] In one embodiment, the grinding assembly includes:

[0038] A grinding base 14, the outer wall of the main base 1 is fixedly connected with the grinding base 14, a lifting screw 15 is arranged on the top of the grinding base 14, one end of the lifting screw 15 is fixedly connected with a hand wheel 16, the outer wall of the lifting screw 15 is threadedly connected with a connecting slider 17, the top of the connecting slider 17 is fixedly connected with a sliding guide block 18, the top of the sliding guide block 18 is slidably connected with a lifting guide block 19, a fitting strip 20 is fixedly connected with the connecting portion between the sliding guide block 18 and the lifting guide block 19, a lifting plate 21 is fixedly connected with the top of the lifting guide block 19, a limiting rod 22 slidably connected to the inner wall of the grinding base 14 is fixedly connected to the bottom edge of the lifting plate 21, and a grinding stone 23 fitted with the working surface of the pulley body 13 is fixedly connected to the top of the lifting plate 21.

[0039] In this embodiment, the sliding guide block 18 slides through the interlocking strip 20 to drive the lifting guide block 19 and the grinding base 14 to vertically lift and lower. The movement of the lifting guide block 19 drives the limiting rod 22 at the bottom edge of the lifting plate 21 to slide vertically along the inner wall of the grinding base 14, which is beneficial to improve the lifting stability of the lifting plate 21. The movement of the lifting plate 21 drives the grinding stone 23 to fit the working surface of the pulley body 13.

[0040] In one embodiment, the connecting surface between the sliding guide block 18 and the lifting guide block 19 is inclined.

[0041] In this embodiment, by setting the connecting surface of the sliding guide block 18 and the lifting guide block 19 to be inclined, it is beneficial for the sliding guide block 18 to slide through the engaging strip 20 to drive the lifting guide block 19 and the grinding base 14 to vertically lift and lower, thereby realizing the vertical lifting operation of the lifting guide block 19.

[0042] In one embodiment, four groups of limiting rods 22 are provided, and the four groups of limiting rods 22 are located at four corners of the edge of the lifting plate 21 .

[0043] In this embodiment, by providing four sets of limit rods 22, the movement of the lifting guide block 19 drives the four sets of limit rods 22 at the bottom edge of the lifting plate 21 to slide vertically along the inner wall of the grinding base 14, which is beneficial to improving the lifting stability of the lifting plate 21.

[0044] When the positioning device for pulley production of this embodiment is in use, first, the staff inserts the pulley body 13 into the positioning frame 3, and then the staff turns the positioning knob 5. The positioning knob 5 rotates through the positioning screw 4 to drive the threaded slider 6 to slide. The sliding of the threaded slider 6 drives the three groups of sliding hole plates 7 to move synchronously. The sliding of the sliding hole plate 7 drives the positioning guide groove 8 to move, so that the positioning guide groove 8 slides through the positioning guide column 10 to drive the limit strip 11 on the outer wall of the telescopic plate 9 to slide along the inner wall of the positioning frame 3, and then the sliding of the telescopic plate 9 drives the positioning plate 12 to fit with the inner wall of the pulley body 13. Through the synchronous relative movement of the three groups of positioning plates 12, the rapid center positioning operation of the pulley body 13 is realized, and eccentricity during the processing of the pulley body 13 is avoided.

[0045] Finally, the working surface of the pulley body 13 is fitted with the grinding stone 23, and the staff turns the handwheel 16. The rotation of the handwheel 16 drives the sliding guide block 18 connected to the top of the slider 17 to slide along the top of the grinding base 14 through the lifting screw 15. The sliding guide block 18 slides through the engaging strip 20 to drive the lifting guide block 19 and the grinding base 14 to lift vertically. The movement of the lifting guide block 19 drives the limiting rod 22 at the bottom edge of the lifting plate 21 to slide vertically along the inner wall of the grinding base 14, which is beneficial to improve the lifting stability of the lifting plate 21. The movement of the lifting plate 21 drives the grinding stone 23 to fit with the working surface of the pulley body 13, and then the working motor 2 drives the pulley body 13 on the outer wall of the positioning frame 3 to rotate, and the grinding operation of the working surface of the pulley body 13 is realized through the relative movement of the pulley body 13 and the grinding stone 23.

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A positioning device for pulley production, characterized in that: include: A main body base (1), the top of the main body base (1) is fixedly connected to a working motor (2), the output end of the working motor (2) is fixedly connected to a positioning frame (3), a positioning screw (4) is arranged inside the positioning frame (3), one end of the positioning screw (4) is fixedly connected to a positioning knob (5), the outer wall of the positioning screw (4) is threadedly connected to a threaded slider (6) slidably connected to the inner wall of the positioning frame (3), and the outer wall of the threaded slider (6) is fixedly connected to a sliding hole plate (7) The outer wall of the sliding hole plate (7) is provided with a positioning guide groove (8), the outer wall of the positioning guide groove (8) is movably connected with a telescopic plate (9), the connecting portion between the telescopic plate (9) and the positioning guide groove (8) is fixedly connected with a positioning guide column (10), the outer wall of the telescopic plate (9) is fixedly connected with a limit strip (11) slidably connected with the inner wall of the positioning frame (3), one end of the telescopic plate (9) is fixedly connected with a positioning plate (12), and the outer wall of the positioning plate (12) is attached with a pulley body (13); A grinding assembly is located below the pulley body (13) and is used for grinding the working surface of the pulley body (13).

2. The positioning device for pulley production according to claim 1, characterized in that: The sliding orifice plates (7) are provided in three groups, and the three groups of sliding orifice plates (7) are distributed at equal angles around the threaded slider (6).

3. The positioning device for pulley production according to claim 1, characterized in that: The positioning guide grooves (8) are provided in two groups, and the two groups of positioning guide grooves (8) are parallel.

4. The positioning device for pulley production according to claim 1, characterized in that: The telescopic plate (9) forms a telescopic structure with the positioning frame (3) through the positioning guide groove (8) and the positioning guide column (10); the cross section of the positioning plate (12) is in an arc shape; and the outer shape of the positioning plate (12) is in an "L" shape.

5. The positioning device for pulley production according to claim 1, characterized in that: The grinding assembly comprises: A grinding base (14), the outer wall of the main body base (1) is fixedly connected with the grinding base (14), a lifting screw (15) is arranged at the top of the grinding base (14), one end of the lifting screw (15) is fixedly connected with a hand wheel (16), the outer wall of the lifting screw (15) is threadedly connected with a connecting slider (17), the top of the connecting slider (17) is fixedly connected with a sliding guide block (18), the top of the sliding guide block (18) is slidably connected with a lifting guide block (19), a fitting strip (20) is fixedly connected at the connecting portion between the sliding guide block (18) and the lifting guide block (19), a lifting plate (21) is fixedly connected at the top of the lifting plate (21), a limit rod (22) slidably connected with the inner wall of the grinding base (14) is fixedly connected at the bottom edge of the lifting plate (21), and a grinding stone (23) which fits the working surface of the pulley body (13) is fixedly connected at the top of the lifting plate (21).

6. The positioning device for pulley production according to claim 5, characterized in that: The connection surfaces of the sliding guide block (18) and the lifting guide block (19) are inclined.

7. The positioning device for pulley production according to claim 5, characterized in that: Four groups of the limiting rods (22) are provided, and the four groups of the limiting rods (22) are located at four corners of the edge of the lifting plate (21).

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