Grinding and polishing equipment for castings

Abstract

The utility model discloses grinding and polishing equipment for castings, relates to the technical field of polishing, and aims to solve the technical problem that a clamp is unstable in clamping during grinding and polishing of I-shaped castings. The grinding and polishing equipment comprises a polishing machine main body, a working table is arranged in the polishing machine main body, and the upper surface of the working table is connected with a turntable; two supporting blocks making contact with each other are arranged above the rotating disc, and a polishing head is arranged at the upper end in the polishing machine body. The I-shaped casting is directly placed above the supporting blocks, then the rotating rod is rotated to control the pushing block to rotate to open and separate the two supporting blocks, and the pushing rod is in contact with the inner wall of the casting in the contact process of the edges of the supporting blocks and the edge of the I-shaped casting. When the supporting block makes contact with the inner wall of the casting, the supporting block is pressed to drive the limiting block to be clamped on the clamping block in the direction of the clamping block, the limiting push block reversely controls the rotating rod to drive the clamping block to rotate, and in the contact process of the supporting block and the arc-shaped face of the inner side of the casting, the supporting and fixing stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing, and more specifically to a grinding and polishing device for castings. Background Art

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright and flat surface. It is a modification process of the workpiece surface using polishing tools and abrasive particles or other polishing media. Existing I-shaped castings are generally fixed with a fixed fixture before polishing. Since the inner edge of the I-shaped casting has a certain curvature, the edge of the fixture cannot completely fit with the inner side of the I-beam during clamping, resulting in the I-beam clamping being not stable enough during the grinding and polishing process. In view of this, we propose a grinding and polishing device for castings. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art, meet practical needs, and provide a grinding and polishing device for castings to solve the technical problem of unstable clamping of the clamps in the current grinding and polishing of I-shaped castings.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a grinding and polishing device for castings, comprising a polishing machine body, a workbench is arranged inside the polishing machine body, a turntable is connected to the upper surface of the workbench, two supporting blocks contacting each other are arranged above the turntable, a polishing head is arranged at the upper end of the polishing machine body, a fixing plate fixedly connected to the middle of the turntable is arranged on the inner surface of the supporting block, a rotating rod is connected inside the fixing plate; a connecting groove is opened on the upper surface of the turntable, and a connecting groove is fixedly connected to the lower surface of the supporting block. A slider, both sides of which are connected to rollers through shafts; a push rod is movably connected to the inner surface of the support block, one end of the push rod is connected to the limit block through a fixed tube, and the outer surface of the push rod is connected to the inner wall of the support block through a connecting spring; a separation plate is symmetrically arranged inside the fixed plate, a return spring is fixedly connected to the inner wall of the separation plate, and one end of the return spring is connected to a connecting rod through a pressing block; a number of card blocks matching the limit blocks are evenly arranged on the outer surface of the middle part of the rotating rod, and elliptical push blocks are symmetrically fixedly connected to the two sides of the outer surface of the rotating rod.

[0005] The utility model places the I-shaped casting directly above the supporting block, and then rotates the rotating rod to control the push block to rotate to spread and separate the two supporting blocks. When the edge of the supporting block contacts the edge of the I-shaped casting, the push rod contacts the inner wall of the casting, and is pressed in the direction of the clamping block when the supporting block contacts the inner wall of the casting, driving the limit block to be clamped on the clamping block, limiting the push block to reversely control the rotating rod to drive the clamping block to rotate, thereby maintaining the supporting and fixing effect on the I-shaped casting, and improving the stability of the supporting and fixing when the support block contacts the inner arc surface of the casting.

[0006] Preferably, the lower surface of the polishing head is provided with an arc surface that fits with the inner wall of the I-shaped casting; so that the polishing head adapts to the shape of the inner wall of the casting, thereby improving the polishing accuracy of the I-shaped casting.

[0007] Preferably, a small-diameter air hole is opened on one side of the interior of the fixed tube, and the fixed tube and the fixed plate are fixedly connected, and a gap matching the outer circle radius of the limit block is retained between the fixed plate and the separation plate; when the interior of the fixed tube fixed to the fixed plate is rapidly compressed by the push rod, the excess airflow directly pushes the limit block forward until it is stuck on the block, and at the same time provides space for the offset of the two separation plates, thereby facilitating the fixation of the block.

[0008] Preferably, the remote surfaces of the two support blocks are both arc surfaces adapted to the I-shaped casting, and are used to fit the inner surface of the I-shaped casting to improve the stability of the casting support and fixation.

[0009] Preferably, the inner wall of the separation plate is provided with a slot matching the card block, and the outer surface of the separation plate is penetrated by a movable slot matching the limit block and connected to the slot; the connection between the separation plate and the card block facilitates certain restrictions on the rotation of the rotating rod, and the limit block is clamped on the card block to prevent the rotation of the rotating rod.

[0010] Preferably, the connecting groove comprises a sliding groove and a rolling groove respectively matching the sliding block and the roller; the rolling of the roller reduces the friction force experienced by the two supporting blocks in the process of moving away from each other.

[0011] Preferably, a rotation groove matching the push block is provided inside the support block; the rotation groove matching the push block can push the two support blocks apart when the elliptical push block rotates.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model places the I-shaped casting directly on the top of the support block, and then rotates the rotating rod to control the push block to rotate to spread and separate the two support blocks. When the edge of the support block contacts the edge of the I-shaped casting, the push rod contacts the inner wall of the casting, and when the support block contacts the inner wall of the casting, it is pressed in the direction of the clamping block to drive the limit block to be clamped on the clamping block, and the push block is restricted to control the rotating rod in the reverse direction to drive the clamping block to rotate, thereby maintaining the supporting and fixing effect on the I-shaped casting, and improving the stability of the support and fixation when the support block contacts the inner arc surface of the casting.

[0014] 2. The utility model also designs a polishing head structure to achieve the effect of fitting the inner curved surface of the I-shaped casting when grinding and polishing the casting, thereby improving the polishing accuracy of the I-shaped casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection groove structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the support block structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the push block structure of the utility model;

[0019] Figure 5 For the utility model Figure 4 The enlarged structural diagram at A in the middle;

[0020] Figure 6 This is a schematic diagram of the side cross-sectional structure of the fixed pipe of the utility model;

[0021] Figure 7 The utility model is a schematic diagram of a use state.

[0022] Description of the numbers in the figure:

[0023] 1. Polishing machine body; 2. Workbench; 3. Turntable; 301. Connecting groove; 302. Slider; 303. Roller; 4. Polishing head; 5. Support block; 501. Push rod; 502. Fixed tube; 503. Limit block; 504. Connecting spring; 6. Fixed plate; 601. Separation plate; 602. Connecting rod; 603. Reset spring; 604. Pressing block; 7. Rotating rod; 701. Push block; 702. Card block. DETAILED DESCRIPTION

[0024] like Figures 1 to 7As shown, the utility model relates to a grinding and polishing device for castings, comprising a polishing machine body 1, a workbench 2 is arranged inside the polishing machine body 1, a turntable 3 is connected to the upper surface of the workbench 2, two support blocks 5 contacting each other are arranged above the turntable 3, a polishing head 4 is arranged at the upper end inside the polishing machine body 1, a fixing plate 6 fixedly connected to the middle of the turntable 3 is arranged on the inner surface of the support block 5, and a rotating rod 7 is connected inside the fixing plate 6; a connecting groove 301 is opened on the upper surface of the turntable 3, a slider 302 is fixedly connected to the lower surface of the support block 5, and rollers 303 are connected to both sides of the slider 302 through shafts. ; The inner surface of the support block 5 is movably connected with a push rod 501, one end of the push rod 501 is connected to the limiting block 503 through a fixed tube 502, and the outer surface of the push rod 501 is connected to the inner wall of the support block 5 through a connecting spring 504; the interior of the fixed plate 6 is symmetrically provided with a separation plate 601, the inner wall of the separation plate 601 is fixedly connected with a return spring 603, and one end of the return spring 603 is connected to the connecting rod 602 through a pressing block 604; the outer surface of the middle part of the rotating rod 7 is evenly provided with a number of card blocks 702 matching the limiting block 503, and the two sides of the outer surface of the rotating rod 7 are symmetrically fixedly connected with elliptical push blocks 701.

[0025] In an embodiment of the utility model, the lower surface of the polishing head 4 is provided with an arc surface that fits the inner wall of the I-shaped casting; the away surfaces of the two support blocks 5 are both arc surfaces that adapt to the I-shaped casting, the inner wall of the separation plate 601 is provided with a slot that matches the block 702, and the outer surface of the separation plate 601 is penetrated by a movable slot that matches the limit block 503 and is connected to the slot, the interior of the support block 5 is provided with a rotating slot that matches the push block 701, a small diameter air hole is provided on one side of the interior of the fixed tube 502, and the fixed tube 502 and the fixed plate 6 are fixedly connected, and a gap matching the outer circle radius of the limit block 503 is retained between the fixed plate 6 and the separation plate 601.

[0026] In the embodiment of the present utility model, the connecting groove 301 includes a sliding groove and a rolling groove respectively matching with the sliding block 302 and the roller 303 .

[0027] Working principle: This embodiment provides a grinding and polishing device for castings. When in use, first place the I-shaped casting on the top of the support block 5, then rotate the rotating rod 7 according to the size of the casting, control the push block 701 to rotate and open the two support blocks 5, and drive the push rod 501 to move synchronously and slowly through the connecting spring 504. At this time, the interior of the fixed tube 502 is filled with air through the small diameter air hole, and then the limit block 503 is kept in the gap between the fixed plate 6 and the separation plate 601. At the same time, the rotating rod 7 controls the block 702 to rotate between the two separation plates 601 and repeatedly It is expanded and reset under the action of the reset spring 603 until the support block 5 drives the push rod 501 to contact the inner wall of the casting through the connecting spring 504, and the push rod 501 is compressed to move in the opposite direction toward the inside of the fixed tube 502. At this time, the push rod 501 directly compresses the internal gas of the fixed tube 502 to push the limit block 503 forward to be stuck on the outside of the block 702, limiting the rotation of the block 702 and the push block 701 driven by the rotating rod 7, keeping the outer surface of the support block 5 in contact with the inner wall of the I-shaped casting, and under the action of the curvature of the edge of the outer surface of the support block 5, the support and fixation stability of the I-shaped casting is improved.

[0028] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A grinding and polishing device for castings, comprising a polishing machine body (1), characterized in that: A workbench (2) is arranged inside the polishing machine body (1), a turntable (3) is connected to the upper surface of the workbench (2), two support blocks (5) in contact with each other are arranged above the turntable (3), a polishing head (4) is arranged at the upper end inside the polishing machine body (1), a fixing plate (6) fixedly connected to the middle of the turntable (3) is arranged on the inner surface of the support block (5), and a rotating rod (7) is connected inside the fixing plate (6); The upper surface of the rotating disk (3) is provided with a connecting groove (301), the lower surface of the supporting block (5) is fixedly connected with a sliding block (302), and both sides of the sliding block (302) are connected with rollers (303) via shafts; The inner surface of the support block (5) is movably connected with a push rod (501), one end of the push rod (501) is connected to a limit block (503) via a fixed tube (502), and the outer surface of the push rod (501) is connected to the inner wall of the support block (5) via a connecting spring (504); A separation plate (601) is symmetrically arranged inside the fixed plate (6), a return spring (603) is fixedly connected to the inner wall of the separation plate (601), and one end of the return spring (603) is connected to a connecting rod (602) via a pressing block (604); The outer surface of the middle part of the rotating rod (7) is evenly provided with a plurality of clamping blocks (702) matching with the limiting blocks (503), and the two sides of the outer surface of the rotating rod (7) are symmetrically fixedly connected with elliptical pushing blocks (701).

2. The grinding and polishing equipment for castings according to claim 1, characterized in that: The lower surface of the polishing head (4) is provided with an arc-shaped surface which fits the inner wall of the I-shaped casting.

3. The grinding and polishing equipment for castings according to claim 1, characterized in that: A small-diameter air hole is provided on one side of the interior of the fixed tube (502), and the fixed tube (502) and the fixed plate (6) are fixedly connected, and a gap matching the outer circle radius of the limit block (503) is reserved between the fixed plate (6) and the separation plate (601).

4. The grinding and polishing equipment for castings according to claim 1, characterized in that: The remote surfaces of the two support blocks (5) are both arc surfaces adapted to the I-shaped casting.

5. The grinding and polishing equipment for castings according to claim 1, characterized in that: The inner wall of the separation plate (601) is provided with a slot matching the locking block (702), and the outer surface of the separation plate (601) is provided with a movable slot matching the limiting block (503) and communicating with the slot.

6. The grinding and polishing equipment for castings according to claim 1, characterized in that: The connecting groove (301) comprises a sliding groove and a rolling groove respectively matching the sliding block (302) and the roller (303).

7. The grinding and polishing equipment for castings according to claim 1, characterized in that: The support block (5) is provided with a rotation groove inside thereof for matching the push block (701).

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