A polishing device for a cambered surface casting

Abstract

The utility model discloses a kind of polishing equipment of arc surface casting, it is related to casting polishing technical field.It includes base, the top of base is provided with first vertical plate and second vertical plate, first vertical plate is fixed with the top of base, the top of base is provided with a plurality of special-shaped grooves, the bottom of second vertical plate is fixed with a plurality of special-shaped blocks, special-shaped block is matched with special-shaped groove.The utility model is provided with two lateral clamping blocks and polishing assembly, the cylindrical plug of clamping block can be inserted into the pipeline hole of valve casting, cooperate with the extrusion of step surface to valve end surface, form multiple-point positioning, effectively avoid the deviation or shaking of casting in polishing process, in polishing assembly, two arc polishing blocks are connected by support rod and spring, can self-adaptingly adhere to the arc surface of valve pipe body and flange disc junction, motor drives clamping block to drive casting rotation, so that polishing block can carry out all-around, uniform polishing operation to arc surface.

Description

Technical Field

[0001] This utility model relates to the field of casting grinding technology, specifically a grinding device for arc-shaped castings. Background Technology

[0002] Valves are control components in fluid transport systems, with functions such as shutting off, regulating, guiding, preventing backflow, stabilizing pressure, diverting flow, or overflowing and relieving pressure. Valves are usually formed by casting, and after casting, they usually need to undergo a grinding process.

[0003] Chinese invention patent application publication number CN119159455A discloses a valve grinding equipment for valve production. Through the set platform and rectangular frame, it can support the main structure on the upper structure. In conjunction with the set through groove, through hole plate, collection hopper, connecting frame, pipe, fan unit, as well as support plate, filter plate, support rod, rotating support arm, T-shaft, and fixing block, it can effectively treat and collect the waste chips and dust generated during the grinding of the flange end faces on both sides of the valve, thereby preventing the impact on the external working environment of the overall equipment.

[0004] Existing technologies have solved the problem of grinding the side of the flange of valve castings. However, in order to ensure product quality, the arc surface formed at the connection between the valve body and the flange also needs to be ground. In the existing technology, the grinding precision is often insufficient due to problems such as unstable clamping during the grinding process of the arc surface. This can easily lead to local depressions or over-grinding, which affects the overall sealing performance and aesthetics of the valve. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for arc-shaped castings to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for arc-shaped castings, including a base, a first vertical plate and a second vertical plate are provided at the top of the base, the first vertical plate is fixed to the top of the base, a plurality of irregular grooves are provided at the top of the base, and a plurality of irregular blocks are fixed at the bottom of the second vertical plate, the irregular blocks being adapted to the irregular grooves. A lead screw is movably connected between the first vertical plate and the second vertical plate, and the lead screw is movably screwed to the second vertical plate; Two clamping blocks are movably arranged between the first vertical plate and the second vertical plate. A motor is fixed to the side of the second vertical plate, and the output end of the motor is connected to the clamping block located on one side of the second vertical plate. A support plate is fixed to the top of the first vertical plate, and a grinding assembly is provided at the bottom of the support plate. The grinding assembly is used to grind the arc surface formed at the connection between the valve casting pipe body and the flange.

[0007] Preferably, the clamping block includes a rotating shaft, with a cylindrical pressing block fixed to the end of the rotating shaft, and a cylindrical insert formed on the side of the cylindrical pressing block, the cylindrical insert being adapted to the pipe hole of the valve casting; A stepped surface is formed between the cylindrical pressing block and the cylindrical insert block. After the two clamping blocks clamp the valve casting, the stepped surface is pressed against the end face of the valve casting.

[0008] Preferably, the grinding assembly includes a telescopic component, a fixed plate is fixed to the bottom end of the telescopic component, grinding blocks are provided on both sides of the bottom of the fixed plate, a connecting plate is fixed to the side of the grinding block, a support rod is fixed to the back of the connecting plate, and the support rod is movably connected to the fixed plate through a connecting shaft. A spring is fixed between the two support rods.

[0009] Preferably, the grinding block is arc-shaped, which is compatible with the arc surface formed at the connection between the valve casting pipe body and the flange.

[0010] Preferably, multiple guide rods are fixed to the top of the fixing plate, and the guide rods are movably connected to the support plate.

[0011] Preferably, a slot is provided on one side of the support plate, and an insert plate is fixed on the side of the second vertical block, the insert plate being adapted to the slot.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The grinding equipment for this arc-shaped casting is equipped with two horizontal clamping blocks and a grinding assembly. The cylindrical inserts of the clamping blocks can be inserted into the pipe holes of the valve casting. Together with the pressure of the stepped surface on the valve end face, it forms multi-point positioning, effectively preventing the casting from shifting or shaking during the grinding process. In the grinding assembly, two arc-shaped grinding blocks are connected by support rods and springs, which can adaptively fit the arc surface at the connection between the valve body and the flange. The motor drives the clamping blocks to rotate the casting, so that the grinding blocks can perform all-round and uniform grinding operations on the arc surface, effectively improving the accuracy and efficiency of arc surface grinding, and ensuring the sealing performance and appearance quality of the valve product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a half-sectional view of the present invention; Figure 3 This is a detailed drawing of the grinding component of this utility model.

[0014] In the diagram: 1. Base; 101. Irregular groove; 2. First vertical plate; 3. Lead screw; 4. Clamping block; 401. Rotating shaft; 402. Columnar pressing block; 403. Columnar insert block; 404. Stepped surface; 405. Motor; 5. Grinding assembly; 501. Telescopic component; 502. Fixing plate; 503. Guide rod; 504. Grinding block; 505. Connecting plate; 506. Support rod; 507. Spring; 6. Support plate; 601. Insert plate; 7. Valve casting. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1-3 As shown, this utility model provides a technical solution: a grinding device for arc-shaped castings, including a base 1 and a first vertical plate 2 and a second vertical plate located on the top of the base 1. The first vertical plate 2 and the second vertical plate have the same size specifications. The first vertical plate 2 is fixed to the top of the base 1, while the second vertical plate is movably disposed on the top of the base 1. Specifically, two irregular grooves 101 are opened at the top of the base 1, and several irregular blocks are fixed at the bottom of the second vertical plate. The irregular blocks are adapted to the irregular grooves 101. The irregular grooves 101 can be dovetail grooves or Chinese character grooves. Correspondingly, the irregular blocks are dovetail blocks or Chinese character blocks, thereby ensuring that the second vertical plate can move horizontally on the top of the base 1.

[0017] To move the second vertical plate and thus change the distance between the first vertical plate 2 and the second vertical plate, a lead screw 3 is movably connected between the first vertical plate 2 and the second vertical plate. The lead screw 3 is movably screwed to the second vertical plate, and a knob is fixed to the end of the lead screw 3 extending out of the second vertical plate. By rotating the knob, the lead screw 3 can be rotated, thereby pushing the second vertical plate to move along the direction of the irregular groove 101 to accommodate valve castings 7 of different lengths.

[0018] Two clamping blocks 4 are movably arranged between the first vertical plate 2 and the second vertical plate, wherein, as shown in the figure... Figure 2As shown, the clamping block 4 includes a rotating shaft 401 movably connected to the vertical plate. A cylindrical pressing block 402 is fixed to the end of the rotating shaft 401. A cylindrical insert 403 is formed on the side of the cylindrical pressing block 402. A stepped surface 404 is formed between the cylindrical pressing block 402 and the cylindrical insert 403. After the two clamping blocks 4 clamp the valve casting 7, the stepped surface 404 is pressed against the end face of the valve casting 7. The cylindrical insert 403 is adapted to the pipe hole of the valve casting 7. To reduce the damage caused by the cylindrical insert 403 to the inner wall of the pipe hole, the cylindrical insert 403 is preferably made of rubber. A motor 405 is fixed to the side of the second vertical plate. The output end of the motor 405 is connected to the end of the rotating shaft 401 of the clamping block 4 located on one side of the second vertical plate. In this way, the clamping block 4 and the clamped valve casting 7 can be driven to rotate synchronously by the motor 405.

[0019] A support plate 6 is fixed at the top of the first vertical plate 2, and a grinding assembly 5 is provided at the bottom of the support plate 6. The grinding assembly 5 is used to grind the arc surface formed at the connection between the valve casting 7 pipe body and the flange. To improve the stability of the grinding assembly 5, a slot is provided on one side of the support plate 6. An insert plate 601 is fixed on the side of the second vertical block. The insert plate 601 is adapted to the slot. When the second vertical plate moves to a suitable position, the insert plate 601 is inserted into the slot, which can provide lateral support to the support plate 6 and prevent the support plate 6 from shaking during the grinding process.

[0020] like Figure 3 As shown, the grinding assembly 5 includes a telescopic component 501, which can be an electric telescopic rod. A fixing plate 502 is fixed to the bottom end of the telescopic component 501. To improve the stability of the fixing plate 502 during the lifting and grinding process, two symmetrically arranged guide rods 503 are fixed to the top end of the fixing plate 502. The guide rods 503 are movably inserted into the support plate 6 to form a stable guiding structure.

[0021] Grinding blocks 504 are provided on both sides of the bottom of the fixed plate 502. The grinding blocks 504 are arc-shaped, and their curvature matches the arc surface formed by the connection between the valve casting 7 pipe body and the flange. The inner wall of the grinding block 504 is fixed with a diamond grinding layer, which can efficiently remove burrs and protrusions from the arc surface. A connecting plate 505 is fixed to the side of the grinding block 504. A support rod 506 is vertically fixed to the back of the connecting plate 505. The support rod 506 is movably connected to the fixed plate 502 through a connecting shaft, so that the grinding block 504 can rotate around the connecting shaft. A spring 507 is fixed between the two support rods 506. When the spring 507 is in its natural state, the two support rods 506 are symmetrically distributed, and the extension lines of their top rods form a certain angle.

[0022] Working principle: When using the grinding equipment for arc-shaped castings, the pipe hole on one side of the valve casting 7 is inserted into the cylindrical insert 403 of the clamping block 4 on the side of the first vertical plate 2. Then, the knob on the screw 3 is rotated to move the second vertical plate towards the first vertical plate 2, so that the cylindrical insert 403 of the clamping block 4 on the other side is inserted into the pipe hole at the other end of the valve casting 7. At this time, the stepped surface 404 is tightly pressed against the two end faces of the valve casting 7, thus completing the axial positioning and clamping of the valve casting 7.

[0023] Activate the telescopic component 501 to push the fixed plate 502 downward. Before the grinding blocks 504 on both sides contact the valve casting 7, the spring 507 is in its natural state. As the fixed plate 502 continues to move downward, the grinding blocks 504 are pressed against the valve casting 7 pipe, the support rod 506 rotates around the connecting shaft, and the spring 507 is stretched until the grinding blocks 504 fit against the arc surface of the valve casting 7. Then, start the motor 405 to drive the valve casting 7 to rotate at a uniform speed. At the same time, the grinding blocks 504 grind the arc surface under the pressure of the telescopic component 501. After grinding is completed, first turn off the motor 405, then control the telescopic component 501 to drive the grinding blocks 504 to move upward and reset. Rotate the screw 3 in the opposite direction to make the second vertical plate move away from the first vertical plate 2, and then the ground valve casting 7 can be removed.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A grinding device for arc-shaped castings, comprising a base (1), characterized in that: The top of the base (1) is provided with a first vertical plate (2) and a second vertical plate. The first vertical plate (2) is fixed to the top of the base (1). The top of the base (1) is provided with a number of irregular grooves (101). The bottom of the second vertical plate is fixed with a number of irregular blocks. The irregular blocks are adapted to the irregular grooves (101). A lead screw (3) is movably connected between the first vertical plate (2) and the second vertical plate, and the lead screw (3) is movably screwed to the second vertical plate; Two clamping blocks (4) are movably arranged between the first vertical plate (2) and the second vertical plate. A motor (405) is fixed on the side of the second vertical plate. The output end of the motor (405) is connected to the clamping block (4) located on one side of the second vertical plate. The top of the first vertical plate (2) is fixed with a support plate (6), and the bottom of the support plate (6) is provided with a grinding assembly (5). The arc surface formed at the connection between the valve casting (7) pipe body and the flange is ground by the grinding assembly (5).

2. The grinding equipment for arc-shaped castings according to claim 1, characterized in that: The clamping block (4) includes a rotating shaft (401), and a cylindrical pressing block (402) is fixed at the end of the rotating shaft (401). A cylindrical insert (403) is formed on the side of the cylindrical pressing block (402), and the cylindrical insert (403) is adapted to the pipe hole of the valve casting (7). A stepped surface (404) is formed between the cylindrical pressing block (402) and the cylindrical insert block (403). After the two clamping blocks (4) clamp the valve casting (7), the stepped surface (404) is pressed against the end face of the valve casting (7).

3. The grinding equipment for arc-shaped castings according to claim 1, characterized in that: The grinding assembly (5) includes a telescopic component (501), a fixed plate (502) is fixed at the bottom end of the telescopic component (501), grinding blocks (504) are provided on both sides of the bottom of the fixed plate (502), a connecting plate (505) is fixed on the side of the grinding block (504), a support rod (506) is fixed on the back of the connecting plate (505), and the support rod (506) is movably connected to the fixed plate (502) through a connecting shaft; A spring (507) is fixed between the two support rods (506).

4. The grinding equipment for arc-shaped castings according to claim 3, characterized in that: The grinding block (504) is arc-shaped, which is compatible with the arc surface formed at the connection between the valve casting (7) pipe body and the flange.

5. The grinding equipment for arc-shaped castings according to claim 3, characterized in that: The top of the fixed plate (502) is fixed with multiple guide rods (503), and the guide rods (503) are movably connected to the support plate (6).

6. The grinding equipment for arc-shaped castings according to claim 1, characterized in that: The support plate (6) has a slot on one side, and the second vertical block has a plug plate (601) fixed on the side, which is compatible with the slot.

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