Positioning mechanism for casting polishing

Abstract

The utility model relates to the technical field of casting part polishing, in particular to a positioning mechanism for casting part polishing. According to the technical scheme, a cushion block is installed on a supporting plate and located between the supporting plate and a workpiece, the workpiece is dragged and placed on the supporting plate through the cushion block, fixing bases are installed at the two ends of a sliding plate, connecting arms are rotatably installed on the fixing bases, pressing wheels are located on the connecting arms, and the workpiece is clamped and fixed to the supporting plate through the pressing wheels. A connecting plate is rotationally installed at the bottom end of the supporting plate and movably connected with the sliding plate through a connecting rod, an air cylinder is installed at the bottom end of the supporting plate, the output end of the air cylinder is movably connected with the sliding plate at one end of the supporting plate, and the sliding plate is driven by the air cylinder. According to the sliding plate, through the design of the connecting arm and the fixing base, the position and angle of the pressing wheel are allowed to be adjusted. Due to the adjustability, the pressing wheel can be tightly attached to workpieces of different shapes and sizes, and the stable clamping effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry parts polishing technical field, concretely relates to a positioning mechanism for foundry parts polishing. BACKGROUND

[0002] The polishing machine is also called grinding machine, and is often used for mechanical grinding, polishing and waxing. Its working principle is that the motor drives the sponge or wool polishing disc installed on the polishing machine to rotate at high speed. Through the joint action of the polishing disc and polishing agent and the friction with the surface to be polished, the purpose of removing paint surface pollution, oxidation layer and shallow marks can be achieved. However, the existing polishing device needs manual fixing during polishing, lacks effective positioning device, affects production safety, and also causes uneven polishing and affects production quality. Therefore, a positioning device of the polishing machine is arranged.

[0003] Through retrieval, the patent with patent publication number CN202122011932.4 discloses a positioning mechanism for a polishing machine. Although the positioning mechanism 2 mainly includes a positioning groove 21, a clamp 22 and a first driving motor 23 during use, the clamp 22 is arranged at one end of the positioning groove 21, the clamp 22 is mainly used for clamping one end of the workpiece to be polished, the cross section of the clamp 22 is arc-shaped, and the clamp 22 is made of elastic plastic material. The clamp 22 and the first driving motor 23 are connected through the telescopic rod 4. After starting the first driving motor 23, the telescopic rod 4 can be driven to perform telescopic movement, so that the workpiece to be polished clamped by the clamp 22 can move forward until the workpiece to be polished reaches the grinding wheel 31 for grinding operation. However, the design of the positioning mechanism of the device is mainly aimed at rod-shaped workpieces, which means that it cannot effectively clamp and position workpieces of other shapes (such as flat surfaces, curved surfaces or irregular shapes). This limits the flexibility and versatility of the polishing machine when processing workpieces of various shapes. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a positioning mechanism for foundry parts polishing, which solves the problems raised in the background art.

[0005] The technical problems solved by the utility model are as follows:

[0006] A positioning mechanism for foundry parts polishing, comprising a supporting plate, a sliding plate slidably installed on the supporting plate, a pressure roller installed on the sliding plate, and a workpiece clamped and fixed on the supporting plate by the pressure roller.

[0007] A pad is installed on the supporting plate, the pad is located between the supporting plate and the workpiece, the workpiece is dragged on the supporting plate by the pad, fixed seats are installed at both ends of the sliding plate, a connecting arm is rotatably installed on the fixed seat, and the pressure roller is located on the connecting arm.

[0008] The bottom end of the supporting plate is rotatably provided with a connecting plate, the connecting plate is movably connected with the sliding plates through connecting rods, the two sliding plates are driven to move towards or away from each other through the connecting plate, the bottom end of the supporting plate is provided with a pneumatic cylinder, and the output end of the pneumatic cylinder is movably connected with the sliding plate at one end of the supporting plate.

[0009] Based on the above technical scheme, the utility model further can make improvement as follows.

[0010] Further, the connecting arm is installed on the fixed seat by bolt pressing, and the angle of the connecting arm on the fixed seat is adjusted and then fixed by bolt pressing.

[0011] The beneficial effects of the above further scheme are:

[0012] The connecting arm is fixed by bolt pressing, which can ensure the stability and reliability of the connecting arm on the fixed seat, and prevent the connecting arm from loosening or failing due to vibration or impact during polishing. The angle of the connecting arm on the fixed seat can be adjusted by adjusting the fastening degree of the bolt, which makes the positioning mechanism adapt to workpieces of different shapes and sizes, and improves the flexibility and adjustability.

[0013] Further, the bottom end surface of the supporting plate is provided with a guide rail, the sliding plate is provided with a sliding block, and the sliding plate is limitingly installed at the bottom end of the supporting plate through the cooperation of the sliding block and the guide rail.

[0014] The beneficial effects of the above further scheme are:

[0015] The cooperation of the guide rail and the sliding block provides a stable and accurate moving path for the sliding plate. This design ensures the stability and linearity of the sliding plate during movement, and reduces errors caused by shaking or deviation. During polishing, stable movement of the sliding plate can ensure that the relative position between the workpiece and the polishing grinding wheel remains unchanged, thereby improving the polishing precision and consistency.

[0016] Further, the workpiece is a prism, a cylinder or other irregular shape.

[0017] The beneficial effects of the above further scheme are:

[0018] This design can clamp and fix workpieces of various shapes, including prisms, cylinders and other irregular shapes. This wide applicability enables the positioning mechanism to be applied to various types of casting polishing operations, improving the versatility and flexibility of the equipment. The pressure wheel 303 is usually made of soft materials such as rubber or polyurethane, which have good wear resistance and elasticity. When clamping the workpiece, the pressure wheel can evenly distribute the pressure, avoiding scratching or damaging the surface of the workpiece, thereby protecting the quality of the workpiece.

[0019] Further, a threaded hole is formed through the cushion block, and a threaded column is installed in the threaded hole, and the plurality of cushion blocks are connected and fixed by the threaded columns.

[0020] The beneficial effects of the above further scheme are:

[0021] The plurality of cushion blocks are connected and fixed by the threaded columns, which can form a stable structure to ensure the stability and position accuracy of the cushion blocks during polishing. When the cushion blocks need to be replaced or repaired, the threaded columns can be loosened, and the cushion blocks can be easily removed from the threaded holes, reducing the difficulty and cost of maintenance and replacement.

[0022] Further, the top end of the threaded column is provided with a protrusion, and the bottom end of the threaded column is provided with a groove, and the adjacent two threaded columns are connected by the mutual insertion of the protrusion and the groove. When the threaded column at the bottom end rotates, the threaded column above is driven to rotate through the protrusion and the groove.

[0023] The beneficial effects of the above further scheme are:

[0024] The mutual insertion of the protrusion and the groove forms a close transmission connection between the adjacent threaded columns. This connection method not only has a compact structure, but also can effectively transmit torque, so that when the threaded column at the bottom end rotates, it can smoothly drive the threaded column above to rotate together. The mutual insertion of the protrusion and the groove forms an integral structure between the adjacent threaded columns. This integral structure can effectively disperse and withstand the stress and impact force generated during polishing, thereby improving the strength and durability of the integral structure.

[0025] The utility model provides a positioning mechanism for polishing castings. It has the following beneficial effects:

[0026] The design of the connecting arm and the fixed seat allows the position and angle of the pressure wheel to be adjusted. This adjustability allows the pressure wheel to closely fit different shapes and sizes of workpieces, ensuring stable clamping effect. The positioning mechanism can clamp and fix prisms, cylinders or other irregularly shaped workpieces, showing wide applicability. This flexibility allows the mechanism to handle various types of castings, improving the versatility of the polishing equipment.

[0027] The cushion blocks are connected and fixed by the threaded columns, and the threaded columns can be connected and driven by the mutual insertion of the protrusions and the grooves. This design allows the height of the cushion blocks to be adjusted to meet the needs of different workpieces.

[0028] The sliding plate is limitingly installed at the bottom end of the supporting plate through the cooperation of the sliding block and the guide rail, which ensures the stability and accuracy of the sliding plate during movement. The pressure wheel is tightly fixed by the bolts of the connecting arm and the fixed seat, ensuring the reliability of the pressure wheel when clamping the workpiece.

[0029] The cylinder as a driving force can drive the slide plate to move towards or reversely, so as to realize quick clamping and releasing of the workpiece. The automatic design improves the efficiency of polishing operation. The design of the threaded column and the pad makes the adjustment process relatively simple, without complex tools or a large amount of time. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. Features of the present application, both as to organization and method of operation, together with an understanding of the same, can be best understood by reference to the following detailed description, taken in connection with the accompanying drawings in which:

[0031] In the drawings:

[0032] Figure 1 It is a schematic diagram of the front appearance of the present application;

[0033] Figure 2 It is a schematic diagram of the bottom appearance of the present application;

[0034] Figure 3 It is a schematic diagram of the cylindrical workpiece clamping and fixing of the present application;

[0035] Figure 4 It is a schematic diagram of the pad cross-section structure of the present application.

[0036] In the drawings, the component list represented by each number is as follows:

[0037] 1, workpiece; 2, supporting plate; 201, guide rail; 202, connecting rod; 203, connecting plate; 204, cylinder; 3, slide plate; 301, fixed seat; 302, connecting arm; 303, pressing wheel; 304, sliding block; 4, pad; 401, protruding block; 402, threaded hole; 403, threaded column; 404, groove. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0039] Please refer to Figures 1 to 4 The embodiments provided by the present application are shown in the drawings.

[0040] Embodiment one

[0041] The positioning mechanism for polishing castings comprises a supporting plate 2, a sliding plate 3 slidingly installed on the supporting plate 2, a pressure wheel 303 installed on the sliding plate 3, and a workpiece 1 clamped and fixed on the supporting plate 2 by the pressure wheel 303. The workpiece 1 can be prismatic, cylindrical or irregularly shaped. This design can clamp and fix workpieces 1 of various shapes, including prismatic, cylindrical and irregularly shaped. This wide applicability enables the positioning mechanism to be applied to various types of polishing operations of castings, improving the versatility and flexibility of the equipment. The pressure wheel 303 is usually made of soft materials such as rubber or polyurethane, which have good wear resistance and elasticity. When clamping the workpiece 1, the pressure wheel 303 can uniformly distribute the pressure, avoiding scratching or damaging the surface of the workpiece 1, thereby protecting the quality of the workpiece 1. The supporting plate 2 is provided with a pad 4 located between the supporting plate 2 and the workpiece 1. The workpiece 1 is provided with a protrusion 401 at the top end of a threaded column 403 and a recess 404 at the bottom end of the threaded column 403. The adjacent two threaded columns 403 are connected by the protrusion 401 and the recess 404. When the bottom threaded column 403 rotates, the upper threaded column 403 is driven to rotate through the protrusion 401 and the recess 404. The adjacent threaded columns 403 are connected by the protrusion 401 and the recess 404. This connection method not only has a compact structure, but also can effectively transmit torque, so that when the bottom threaded column 403 rotates, the upper threaded column 403 can be smoothly driven to rotate. The adjacent threaded columns 403 form an integral structure through the mutual insertion of the protrusion 401 and the recess 404. This integral structure can effectively disperse and withstand the stress and impact force generated during polishing, thereby improving the strength and durability of the integral structure. The pad 4 is placed on the supporting plate 2. Threaded holes 402 are provided through the pad 4. Threaded columns 403 are installed in the threaded holes 402. Multiple pads 4 are connected and fixed by the threaded columns 403. The multiple pads 4 are connected and fixed by the threaded columns 403 to form a stable structure, ensuring the stability and positional accuracy of the pad 4 during polishing. When the pad 4 needs to be replaced or repaired, the threaded column 403 can be loosened to easily remove the pad 4 from the threaded hole 402, reducing the difficulty and cost of maintenance and replacement. The sliding plate 3 is provided with a fixed seat 301 at both ends. The fixed seat 301 is provided with a connecting arm 302 rotatingly installed thereon. The connecting arm 302 is press-fitted on the fixed seat 301 by bolts. The angle of the connecting arm 302 on the fixed seat 301 is adjusted and then press-fitted and fixed by bolts. The connecting arm 302 is press-fitted on the fixed seat 301 to ensure the stability and reliability of the connecting arm 302 on the fixed seat 301, preventing loosening or failure due to vibration or impact during polishing.The angle of the connecting arm 302 on the fixed seat 301 can be achieved by adjusting the tightening degree of the bolts, which enables the positioning mechanism to adapt to workpieces 1 of different shapes and sizes, improving its flexibility and adjustability. The pressure wheels 303 are located on the connecting arm 302.

[0042] Embodiment Two

[0043] To facilitate the movement of the sliding plates 3 to adapt to workpieces 1 of different sizes, as shown in the example, Figures 1 to 4 The bottom end of the supporting plate 2 is rotatably installed with a connecting plate 203, which is movably connected to the sliding plates 3 through connecting rods 202. The bottom end surface of the supporting plate 2 is provided with guide rails 201, and the sliding plates 3 are provided with sliding blocks 304. The sliding plates 3 are limitingly installed at the bottom end of the supporting plate 2 through the cooperation of the sliding blocks 304 and the guide rails 201, which provides a stable and accurate movement path for the sliding plates 3. This design ensures the stability and linearity of the sliding plates 3 during movement, reducing errors caused by shaking or deviation. During polishing, stable movement of the sliding plates 3 can ensure that the relative position between the workpiece 1 and the polishing wheel remains unchanged, thereby improving polishing precision and consistency. The two sliding plates 3 are driven to move towards or in the opposite direction by the rotation of the connecting plate 203. The bottom end of the supporting plate 2 is installed with a pneumatic cylinder 204, and the output end of the pneumatic cylinder 204 is movably connected to one of the sliding plates 3 at one end of the supporting plate 2. The sliding plates 3 are driven by the pneumatic cylinder 204.

[0044] Working principle:

[0045] The pneumatic cylinder 204 serves as a driving force source, and drives the sliding plates 3 to move through the extension and retraction of its output end. This automatic design simplifies the polishing operation process and improves work efficiency. The sliding plates 3 can move towards or in the opposite direction through the transmission of the connecting plate 203 and the connecting rod 202 under the drive of the pneumatic cylinder 204. When the two sliding plates 3 move towards each other, the pressure wheels 303 on them will gradually approach and clamp the workpiece 1. By adjusting the angle of the connecting arm 302 on the fixed seat 301 and the tightening degree of the bolts, the position and pressure of the pressure wheels 303 can be fine-tuned.

[0046] The cushion blocks 4 are connected to the supporting plate 2 through threaded columns 403, and the threaded columns 403 can be transmissionally connected through the insertion of the protrusions 401 and the recesses 404. According to the shape and size of the workpiece 1, the number of cushion blocks 4 can be adjusted, and thus the height of the cushion blocks 4 can be adjusted to ensure that the workpiece 1 remains horizontal or at the desired angle during polishing. These adjustment functions enable the positioning mechanism to be applicable to workpieces 1 of various shapes and sizes.

[0047] When the workpiece 1 is clamped and fixed on the support plate 2, its position is determined by the slide plate 3 and the pressure wheel 303. By adjusting the position of the slide plate 3 and the angle of the pressure wheel 303, the correct position of the workpiece 1 under the polishing wheel (not explicitly mentioned in the description, but usually equipped with a polishing machine) can be ensured.

[0048] Once the workpiece 1 is positioned, the polishing wheel can start working. The polishing wheel usually contacts the surface of the workpiece 1 in a rotating manner, removing the uneven parts of the surface of the workpiece 1 through grinding and polishing. During the polishing process, the speed, pressure and polishing time of the polishing wheel can be adjusted as needed to achieve the desired polishing effect.

[0049] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0050] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A positioning mechanism for casting part polishing, comprising a supporting plate (2), a sliding plate (3) slidingly installed on the supporting plate (2), a pressure roller (303) installed on the sliding plate (3), and a workpiece (1) clamped and fixed on the supporting plate (2) by the pressure roller (303), characterized in that: a cushion block (4) is installed on the supporting plate (2) and located between the supporting plate (2) and the workpiece (1), the workpiece (1) is dragged on the supporting plate (2) by the cushion block (4), and a fixing seat (301) is installed at both ends of the sliding plate (3), a connecting arm (302) is rotatably installed on the fixing seat (301), and the pressure roller (303) is located on the connecting arm (302). A connecting plate (203) is rotatably installed at the bottom end of the supporting plate (2), the connecting plate (203) is movably connected to the sliding plate (3) through a connecting rod (202), the two sliding plates (3) are driven to move towards or away from each other by the rotation of the connecting plate (203), a pneumatic cylinder (204) is installed at the bottom end of the supporting plate (2), the output end of the pneumatic cylinder (204) is movably connected to the sliding plate (3) at one end of the supporting plate (2), and the sliding plate (3) is driven by the pneumatic cylinder (204). The connecting arm (302) is installed on the fixing seat (301) by bolt pressing, and the angle of the connecting arm (302) on the fixing seat (301) is adjusted and then fixed by bolt pressing.

2. The positioning mechanism for polishing a cast part according to claim 1, wherein: A guide rail (201) is arranged on the bottom end surface of the supporting plate (2), a sliding block (304) is arranged on the sliding plate (3), and the sliding plate (3) is limitingly installed at the bottom end of the supporting plate (2) by cooperation of the sliding block (304) and the guide rail (201).

3. The positioning mechanism for polishing a cast part according to claim 1, wherein: The workpiece (1) is a prism or a cylinder.

4. The positioning mechanism for polishing a cast part according to claim 1, wherein: Threaded holes (402) are formed through the cushion block (4), threaded columns (403) are installed in the threaded holes (402), and a plurality of cushion blocks (4) are connected and fixed by the threaded columns (403).

5. The positioning mechanism for polishing a cast part according to claim 1, wherein: A protrusion (401) is arranged at the top end of the threaded column (403), a groove (404) is arranged at the bottom end of the threaded column (403), adjacent two threaded columns (403) are drivingly connected by mutual insertion of the protrusion (401) and the groove (404), and when the threaded column (403) at the bottom end rotates, the threaded column (403) above is driven to rotate by the protrusion (401) and the groove (404).

6. The positioning mechanism for polishing a cast part according to claim 5, wherein: ​

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