Linkage tensioning and fixing tool for casting grinding equipment

Abstract

The utility model relates to a fixing tool, in particular to a linkage tensioning and fixing tool for casting polishing equipment. Comprising a fixing frame fixedly installed on the upper surface of a casting grinding equipment rotary table. A through hole is formed in the middle of the upper surface of the fixing frame, and a supporting rod is slidably mounted on the fixing frame through the through hole; a linear displacement driving piece connected with the rotary table is arranged at the lower end of the supporting rod; a plurality of connecting rods evenly distributed around the circumference of the supporting rod are rotationally installed on the upper surface of the fixing frame. <-shaped clamping fingers are rotationally mounted at the ends, away from the upper surface of the fixing frame, of the connecting rods, and the middles of the clamping fingers are rotationally mounted at the upper ends of the supporting rods. Compared with an existing mechanical clamping mode, the workpiece can be fixed to the grinding station without depending on a bench clamp or a similar clamp, pressure is not needed to be applied by rotating a screw rod or a handle, manual operation amount is reduced, and machining and grinding efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to a fixing fixture, specifically a linkage tensioning fixing fixture for a casting grinding equipment. Background Technology

[0002] With industrial development, the demands for both the quantity and quality of castings are continuously increasing. Traditional manual grinding methods, due to their low efficiency, can no longer meet the needs of large-scale production. This has prompted companies to actively explore more efficient specialized grinding equipment for castings. The application of specialized grinding equipment can not only reduce costs and shorten production cycles, but also ensure the stability and precision of the grinding effect, thereby improving the surface quality and dimensional accuracy of cast iron parts.

[0003] To ensure precision and consistency during the grinding process, castings need to be securely clamped and fixed on the grinding equipment. Mechanical clamping, as a common clamping method, usually relies on a vise or similar fixture, applying pressure by rotating a screw or handle to fix the casting in the grinding station. Although this method is relatively simple in structure, its operation still requires manual labor, which to some extent limits the improvement of processing efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that existing clamping methods still rely on manual operation, which limits the improvement of processing efficiency, and to provide a linkage tensioning and fixing fixture for casting grinding equipment.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A linkage tensioning and fixing fixture for casting grinding equipment includes a fixing frame fixedly installed on the upper surface of the turntable of the casting grinding equipment;

[0007] A through hole is provided in the middle of the upper surface of the fixed frame, and a support rod is slidably installed on the fixed frame through the through hole; the lower end of the support rod is provided with a linear displacement drive component connected to the turntable.

[0008] The upper surface of the fixed frame is rotatably mounted with multiple connecting rods evenly distributed around the circumference of the support rod;

[0009] The end of the connecting rod away from the upper surface of the fixed frame is rotatably mounted with a "<" shaped clamping finger, and the middle part of the clamping finger is rotatably mounted on the upper end of the support rod.

[0010] Furthermore, the linear displacement drive includes a connecting plate and multiple cylinders fixedly installed at the bottom of the turntable, with the output ends of the multiple cylinders connected to the top of the connecting plate.

[0011] The top of the connecting plate is equipped with a tie rod, which runs from bottom to top through the turntable and is connected to the support rod.

[0012] Furthermore, an auxiliary plate parallel to the connecting plate is provided below the connecting plate;

[0013] Multiple guide columns are provided between the bottom of the turntable and the auxiliary plate, and the connecting plate is slidably installed on the multiple guide columns.

[0014] Furthermore, the clamping finger includes a clamping part and a connecting part, with the clamping part and the connecting part connected to form a "<" shape;

[0015] A pad is provided on the side of the clamping part away from the support rod.

[0016] Furthermore, the lower end of the pull rod is rotatably connected to the top of the connecting plate.

[0017] Furthermore, the connecting plate is provided with multiple guide copper sleeves corresponding to the positions of the guide posts;

[0018] The connecting plate is slidably mounted on the guide column via a guide copper sleeve.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] The casting grinding equipment provided by this utility model features a linkage tensioning and fixing fixture. By setting a connecting rod between the fixed frame and the clamping fingers, and rotatably connecting the middle of the clamping fingers to the support rod, the support rod can move upward when an upward force is applied to it. At the same time, the upward lifting force of the support rod is converted into the lateral clamping force of the clamping fingers, which facilitates the clamping and fixing of the workpiece. The workpiece only needs to be placed manually on the outside of the clamping fingers on the fixed frame, and the support rod can be driven to move upward by the linear displacement drive to clamp the workpiece. Compared with the existing mechanical clamping and fixing methods, it no longer relies on vises or similar fixtures, and does not require applying pressure by rotating screws or handles to fix the workpiece on the grinding station. This not only reduces the amount of manual operation, but also helps to improve the processing and grinding efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the turntable and linear displacement drive assembly in an embodiment of the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure;

[0024] Figure 4 This is a schematic diagram of the structure after the workpiece is clamped according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1-turntable, 2-fixed frame, 3-support rod, 4-linear displacement drive component, 41-connecting plate, 42-cylinder, 43-pull rod, 5-connecting rod, 6-clamping finger, 61-clamping part, 62-connecting part, 7-auxiliary plate, 8-guide column, 9-guide copper sleeve, 10-pad, 11-workpiece. Detailed Implementation

[0026] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] like Figure 1 As shown, a linkage tensioning and fixing fixture for casting grinding equipment is mainly used for clamping ring-shaped workpieces; it includes a fixed frame 2 fixedly installed on the upper surface of the turntable 1 of the casting grinding equipment; a through hole is opened in the middle of the upper surface of the fixed frame 2, and a support rod 3 is slidably installed on the fixed frame 2 through the through hole; multiple connecting rods 5 are rotatably installed on the upper surface of the fixed frame 2, evenly distributed around the circumference of the support rod 3; a "<" shaped clamping finger 6 is rotatably installed at the end of the connecting rod 5 away from the upper surface of the fixed frame 2, and the middle part of the clamping finger 6 is rotatably installed at the upper end of the support rod 3.

[0028] By setting a connecting rod 5 between the fixed frame 2 and the clamping finger 6, and rotatably connecting the middle part of the clamping finger 6 to the support rod 3, it is convenient for the support rod 3 to move upward when an upward force is applied to the support rod 3, and at the same time convert the upward lifting force of the support rod 3 into the lateral clamping force of the clamping finger 6, so as to facilitate the clamping and fixing of the workpiece 11.

[0029] To facilitate the upward or downward movement of the support rod 3, the lower end of the support rod 3 is equipped with a linear displacement drive component 4 connected to the turntable 1; such as Figure 1 and Figure 2 As shown, the linear displacement drive component 4 includes a connecting plate 41 and multiple cylinders 42 fixedly installed at the bottom of the turntable 1. The cylinders 42 are connected to the air source of the casting grinding equipment; the output ends of the multiple cylinders 42 are all connected to the top of the connecting plate 41; as shown... Figure 3 As shown, a pull rod 43 is rotatably mounted on the top of the connecting plate 41. The pull rod 43 passes through the turntable 1 from bottom to top and is connected to the lower end of the support rod 3. When it is necessary to drive the support rod 3 to move upward, the output end of the control cylinder 42 pulls the connecting plate 41 to move upward, causing the pull rod 43 to slide upward within the turntable 1, thereby pushing the support rod 3 upward. When it is necessary to drive the support rod 3 to move downward, the output end of the control cylinder 42 pushes the connecting plate 41 to move downward, causing the pull rod 43 to slide downward within the turntable 1, thereby pulling the support rod 3 downward.

[0030] To make the connecting plate 41 move more smoothly up and down and not be affected by the asynchronous movement of multiple cylinders 42, an auxiliary plate 7 parallel to the connecting plate 41 is provided below the connecting plate 41; multiple guide posts 8 are provided between the bottom of the turntable 1 and the auxiliary plate 7, and the connecting plate 41 is slidably mounted on the multiple guide posts 8; the sliding direction of the connecting plate 41 is restricted by the guide posts 8 so that the connecting plate 41 will not shake during the sliding process.

[0031] To ensure that the multiple gripping fingers 6 do not damage the workpiece 11 during the clamping process, such as Figure 1 and Figure 4 As shown, the clamping finger 6 includes a clamping part 61 and a connecting part 62. The clamping part 61 and the connecting part 62 are connected to form a "<" shape. A pad 10 is provided on the side of the clamping part 61 away from the support rod 3.

[0032] To reduce wear between the connecting plate 41 and the guide post 8, such as Figure 2 and Figure 3 As shown, the connecting plate 41 is provided with a plurality of guide copper sleeves 9 corresponding to the positions of the guide posts 8; the connecting plate 41 is slidably mounted on the guide posts 8 through the guide copper sleeves 9.

[0033] The casting grinding equipment provided by this utility model has a linkage tensioning and fixing fixture. In practical applications, the various components in the drive unit can be customized according to the size and shape of the workpiece to be clamped, thereby meeting the clamping requirements of different types and sizes of workpieces.

[0034] In other embodiments of this utility model, cylinder 42 can be replaced by hydraulic cylinder or electric cylinder.

[0035] Among them, pneumatic cylinders have the advantages of simple structure, easy installation, rapid action, and convenient air supply; hydraulic cylinders have the advantages of large output force, high precision, and smooth movement; and electric cylinders have the advantages of high precision. In practical applications, the appropriate pneumatic cylinder, hydraulic cylinder, or electric cylinder can be selected according to the requirements.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A linkage tensioning and fixing fixture for a casting grinding equipment, characterized in that: Includes a mounting bracket (2) that is fixedly installed on the upper surface of the turntable (1) of the casting grinding equipment; The upper surface of the fixed frame (2) has a through hole in the middle, and the fixed frame (2) is slidably mounted with a support rod (3) through the through hole; the lower end of the support rod (3) is provided with a linear displacement drive (4) connected to the turntable (1); The upper surface of the fixed frame (2) is rotatably mounted with multiple connecting rods (5) evenly distributed around the circumference of the support rod (3); The end of the connecting rod (5) away from the upper surface of the fixed frame (2) is rotatably mounted with a "<" shaped clamping finger (6), and the middle part of the clamping finger (6) is rotatably mounted on the upper end of the support rod (3).

2. The linkage tensioning and fixing fixture for casting grinding equipment according to claim 1, characterized in that: The linear displacement drive (4) includes a connecting plate (41) and a plurality of cylinders (42) fixedly installed at the bottom of the turntable (1). The output ends of the plurality of cylinders (42) are all connected to the top of the connecting plate (41). The top of the connecting plate (41) is provided with a tie rod (43), which runs from bottom to top through the turntable (1) and is connected to the support rod (3).

3. The linkage tensioning and fixing fixture for casting grinding equipment according to claim 2, characterized in that: An auxiliary plate (7) parallel to the connecting plate (41) is provided below the connecting plate (41); Multiple guide posts (8) are provided between the bottom of the turntable (1) and the auxiliary plate (7), and the connecting plate (41) is slidably installed on the multiple guide posts (8).

4. The linkage tensioning and fixing fixture for casting grinding equipment according to claim 1, characterized in that: The finger clamp (6) includes a clamping part (61) and a connecting part (62), and the clamping part (61) and the connecting part (62) are connected to form a "<" shape; The clamping part (61) has a pad (10) on the side away from the support rod (3).

5. The linkage tensioning and fixing fixture for casting grinding equipment according to claim 2, characterized in that: The lower end of the pull rod (43) is rotatably connected to the top of the connecting plate (41).

6. The linkage tensioning and fixing fixture for casting grinding equipment according to claim 3, characterized in that: The connecting plate (41) is provided with a plurality of guide copper sleeves (9) corresponding to the positions of the guide posts (8); The connecting plate (41) is slidably mounted on the guide post (8) via the guide copper sleeve (9).

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