Burr removing device for crankshaft casting

Abstract

The utility model relates to the technical field of crankshaft casting surface treatment, in particular to a crankshaft casting burr removing device which comprises a frame, a polishing assembly fixedly embedded in the upper end of the frame, and two adjusting assemblies symmetrically and fixedly installed on the lower surface in the frame. The two clamping assemblies are symmetrically and fixedly installed on the lower surface in the frame and located between the two adjusting assemblies. According to the crankshaft grinding device, a plurality of arc-shaped grinding blocks of the grinding assembly move downwards, so that the arc-shaped grinding blocks grind the connecting rod journals at different positions, meanwhile, the inserting blocks are inserted into the inserting grooves at different positions by moving the positions of the inserting blocks, and a crankshaft rotates with the connecting rod journals and the crankshaft journals as rotating shafts; the arc-shaped grinding block is attached to the connecting rod journal for grinding, eccentric rotation of the connecting rod journal is replaced for grinding, the pressure applied to the connecting rod journal by the grinding wheel is the same, the uniformity of the grinding degree is improved, friction generated on the surface of the connecting rod during rotation is the same, and the service life of a crankshaft is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of surface treatment technology for crankshaft castings, specifically a burr removal device for crankshaft castings. Background Technology

[0002] A crankshaft casting is a crankshaft part made of metal materials. The crankshaft is an important mechanical transmission component, mainly used to convert reciprocating linear motion into rotary motion. It is commonly used in various equipment and machinery such as internal combustion engines, steam engines, and diesel generator sets. During the casting process, small burrs may be generated on the surface of the crankshaft, so a burr removal device is needed to remove the burrs from the surface of the crankshaft casting.

[0003] Existing crankshaft surface burr removal methods typically involve using a flexible grinding disc to directly polish the entire crankshaft. However, connecting rod journals at different positions rotate around the main journal, resulting in an eccentric state. The grinding wheel applies different pressures to the connecting rod journals, leading to varying degrees of polishing at different rotational positions. This results in differences in the smoothness of their surfaces, causing different friction on their surfaces during connecting rod rotation, which can easily reduce the crankshaft's service life. Utility Model Content

[0004] The purpose of this invention is to provide a burr removal device for crankshaft castings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A burr removal device for crankshaft castings, comprising:

[0007] A frame, wherein a cylinder is fixedly mounted on the upper surface of the frame, and a flexible grinding roller is fixedly mounted on the output end of the cylinder via a bracket;

[0008] A grinding assembly is fixedly embedded and installed on the upper end of a frame. The grinding assembly includes a second cylinder fixedly embedded and installed on the upper end of the frame. The output ends of multiple second cylinders are fixedly mounted with mounting brackets of different shapes. The lower end of the mounting bracket is fixedly mounted with a mounting frame. An arc-shaped grinding block is fixedly mounted inside the mounting frame.

[0009] Two adjustment components are symmetrically and fixedly installed on the lower surface of the frame.

[0010] Two clamping components are symmetrically fixedly installed on the lower surface inside the frame, located between the two adjusting components.

[0011] Furthermore, the adjustment component includes:

[0012] Cylinder No. 3 is fixedly installed on the lower surface of the frame;

[0013] Cylinder No. 4 is fixedly installed at the output end of cylinder No. 3 by a bracket;

[0014] The fixed frame is fixedly installed at the output end of cylinder number four.

[0015] Preferably, a No. 1 motor is fixedly installed inside the fixed frame, and a plug is fixedly installed at the output end of the No. 1 motor.

[0016] Preferably, the clamping assembly includes:

[0017] The support frame is fixedly installed on the lower surface inside the frame.

[0018] The rotating frame is rotatably connected to the inside of the annular rubber sleeve at the upper end of the support frame;

[0019] The connecting bracket is fixedly installed on one side surface of the rotating frame.

[0020] Preferably, the connecting frame has multiple slots evenly spaced on one side surface, and the plug block is movably inserted into the slot at the corresponding position.

[0021] Preferably, a fixing plate is fixedly installed on one end surface of the rotating frame, a rotating plate is rotatably connected between the fixing plate and the rotating frame, and a second motor capable of driving the rotating plate to rotate is fixedly embedded on one side surface of the rotating frame.

[0022] Preferably, the fixed plate has multiple sliding grooves at equal angles on one side surface, and the rotating plate has multiple arc-shaped grooves at equal angles on one side surface. A slider is slidably connected inside the sliding groove. One end of the slider passes through the sliding groove and is slidably connected to the arc-shaped groove. A clamping rod is fixedly installed on the surface of the other end of the slider.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. By placing the crankshaft between two clamping components, the second motor runs, driving the rotating plate to rotate, causing the arc-shaped groove to push the slider to slide inside the groove, driving multiple clamping rods to move, so that the clamping rods clamp and fix the crankshaft.

[0025] 2. The extension and retraction of cylinders No. 3 and No. 4 drive the movement of motor No. 1, facilitating the insertion of the insert block into the slot. By moving the position of the insert block, it can be inserted into slots at different positions, causing the crankshaft to rotate around the connecting rod journal and the crankshaft journal respectively. This allows the arc-shaped grinding block to adhere to the connecting rod journal for grinding, replacing the eccentric rotation of the connecting rod journal for grinding. This ensures that the arc-shaped grinding block applies the same pressure to the connecting rod journal, improving the uniformity of the grinding degree and maintaining the same friction generated on the surface of the connecting rod during rotation, thereby increasing the service life of the crankshaft. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the grinding component and the clamping component in this utility model;

[0028] Figure 3 This is a schematic diagram of the grinding component and flexible grinding roller structure in this utility model;

[0029] Figure 4 This is a schematic diagram of the disassembled structure of the clamping component and the adjusting component in this utility model;

[0030] Figure 5 This is a schematic diagram of the vertical cross-sectional structure of the clamping component and the adjusting component in this utility model.

[0031] In the diagram: 1. Frame; 101. Cylinder No. 1; 102. Flexible grinding roller; 2. Grinding assembly; 201. Cylinder No. 2; 202. Mounting bracket; 203. Mounting frame; 204. Arc-shaped grinding block; 3. Adjustment assembly; 301. Cylinder No. 3; 302. Cylinder No. 4; 303. Fixing frame; 304. Motor No. 1; 305. Insert block; 4. Clamping assembly; 401. Support frame; 402. Rotating frame; 403. Connecting frame; 404. Slot; 405. Fixing plate; 406. Rotating plate; 407. Slide groove; 408. Arc-shaped groove; 409. Slider; 5. Clamping rod. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-5 In this embodiment of the present invention, a burr removal device for crankshaft castings includes a frame 1. A first cylinder 101 is fixedly installed on the upper surface of the frame 1. A flexible grinding roller 102 is fixedly installed on the output end of the first cylinder 101 via a bracket. A grinding component 2 is fixedly embedded in the upper end of the frame 1. The grinding component 2 includes a second cylinder 201 fixedly embedded in the upper end of the frame 1. Mounting frames 202 of different shapes are fixedly installed on the output ends of multiple second cylinders 201. A mounting frame 203 is fixedly installed on the lower end of the mounting frame 202. An arc-shaped grinding block 204 is fixedly installed inside the mounting frame 203. Two adjusting components 3 are symmetrically fixedly installed on the lower inner surface of the frame 1. Two clamping components 4 are symmetrically fixedly installed on the lower inner surface of the frame 1 between the two adjusting components 3.

[0034] Specifically, cylinder 101 drives flexible grinding roller 102 to move up and down, so that flexible grinding roller 102 fits against the outer wall of crankshaft, so that flexible grinding roller 102 grinds the outer wall of crankshaft and removes burrs from its outer wall. Cylinder 201 extends and retracts, controlling the arc-shaped grinding blocks 204 at different positions to move down, so that the arc-shaped grinding blocks 204 at different positions contact crankshaft journal and connecting rod journal individually, so as to grind crankshaft journal and connecting rod journal respectively and remove burrs from their surfaces. Adjusting component 3 adjusts the crankshaft's rotation axis so that it rotates on different rotation axes. Clamping component 4 clamps and fixes the crankshaft. Example 1

[0035] like Figure 4 and Figure 5 As shown, in this embodiment, a fixed plate 405 is fixedly installed on one end surface of the rotating frame 402, and a rotating plate 406 is rotatably connected between the fixed plate 405 and the rotating frame 402. A second motor capable of driving the rotating plate 406 to rotate is fixedly embedded on one side surface of the rotating frame 402. Multiple sliding grooves 407 are opened at equal angles on one side surface of the fixed plate 405, and multiple arc-shaped grooves 408 are opened at equal angles on one side surface of the rotating plate 406. A slider 409 is slidably connected inside the sliding groove 407. One end of the slider 409 passes through the sliding groove 407 and is slidably connected to the arc-shaped groove 408. A clamping rod 5 is fixedly installed on the other end surface of the slider 409.

[0036] In this embodiment, the crankshaft is placed between two clamping components 4. The second motor operates, driving the rotating plate 406 to rotate, causing the arc groove 408 to push the slider 409 to slide inside the slide groove 407, driving multiple clamping rods 5 to move, so that the clamping rods 5 clamp and fix the crankshaft.

[0037] like Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the adjustment component 3 includes: a third cylinder 301 fixedly installed on the lower surface inside the frame 1, a fourth cylinder 302 fixedly installed on the output end of the third cylinder 301 via a bracket, and a fixed frame 303 fixedly installed on the output end of the fourth cylinder 302; a first motor 304 is fixedly installed inside the fixed frame 303, and an insert block 305 is fixedly installed on the output end of the first motor 304.

[0038] In practice, cylinder 301 extends and retracts, driving cylinder 302 and motor 304 to move up and down. Cylinder 302 extends and retracts, driving motor 304 to move, facilitating the insertion of the insert 305 into the slot 404. When the insert 305 separates from the slot 404, the position of the insert 305 is moved to allow it to insert into slots 404 at different positions, causing the crankshaft to rotate around the connecting rod journal and the crankshaft journal respectively. This allows the arc-shaped grinding block 204 to grind the connecting rod journal, replacing the eccentric rotation of the connecting rod journal for grinding. This ensures that the arc-shaped grinding block 204 applies the same pressure to the connecting rod journal, improving the uniformity of grinding and maintaining the same friction on the surface of the connecting rod during rotation, thus extending the service life of the crankshaft.

[0039] like Figure 4 and Figure 5 As shown, in this embodiment, the clamping assembly 4 includes: a support frame 401 fixedly installed on the lower inner surface of the frame 1, a rotating frame 402 rotatably connected to the inside of the annular rubber sleeve at the upper end of the support frame 401, and a connecting frame 403 fixedly installed on one side surface of the rotating frame 402; a plurality of slots 404 are equidistantly provided on one side surface of the connecting frame 403, and the insert block 305 is movably inserted into the slot 404 at the corresponding position.

[0040] In practice, the support frame 401 supports the crankshaft, and the annular rubber sleeve wraps around the rotating frame 402, allowing it to rotate inside the annular rubber sleeve. At the same time, when rotating with the connecting rod journal, the elastic stretching deformation of the annular rubber sleeve adapts to the rotation of the rotating frame 402 and wraps around it. While the rotating frame 402 rotates inside the support frame 401, it restricts the position of the rotating plate 406.

[0041] In this utility model, cylinder 101, cylinder 201, cylinder 301 and cylinder 302 are all connected to the air circuit system and controlled by the PLC controller and solenoid valve in the air circuit system. The air circuit system is existing technology and will not be described in detail here.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A burr removing device for a crankshaft casting, characterized by, The utility model relates to a kind of polishing machine, including: Frame (1), one gas cylinder (101) is fixedly installed on the upper surface of the frame (1), the output end of the one gas cylinder (101) is fixedly installed with flexible polishing roller (102) by support; Polishing assembly (2), fixedly embedded and installed on the upper end of frame (1), the polishing assembly (2) includes fixedly embedded and installed on the upper end of frame (1) second gas cylinder (201), the output end of multiple second gas cylinder (201) is fixedly installed with different shapes mounting bracket (202), mounting frame (203) is fixedly installed on the lower end of mounting bracket (202), arc polishing block (204) is fixedly installed in mounting frame (203); Two adjusting assemblies (3) are symmetrically fixedly installed on the lower surface inside frame (1); Two clamping assemblies (4) are symmetrically fixedly installed on the lower surface inside frame (1) between two adjusting assemblies (3).

2. The crankshaft casting burr removal apparatus according to claim 1, characterized by, The adjusting assembly (3) includes: Third gas cylinder (301) is fixedly installed on the lower surface inside frame (1); Fourth gas cylinder (302) is fixedly installed on the output end of third gas cylinder (301) by support; Fixed frame (303) is fixedly installed on the output end of fourth gas cylinder (302).

3. The crankshaft casting burr removal apparatus according to claim 2, characterized by, One motor (304) is fixedly installed in the fixed frame (303), and the output end of the one motor (304) is fixedly installed with plug block (305).

4. The crankshaft casting burr removal apparatus according to claim 3, characterized by, The clamping assembly (4) includes: Support frame (401) is fixedly installed on the lower surface inside frame (1); Rotating frame (402) is rotatably connected to the inner ring rubber sleeve of the upper end of support frame (401); Connecting frame (403) is fixedly installed on one side surface of rotating frame (402).

5. The crankshaft casting burr removal apparatus according to claim 4, characterized by, Multiple insertion grooves (404) are equidistantly formed on one side surface of connecting frame (403), and the plug block (305) is movably inserted into the insertion groove (404) at the corresponding position.

6. The crankshaft casting burr removal apparatus according to claim 4, characterized by, Fixed plate (405) is fixedly installed on one end surface of rotating frame (402), and rotating plate (406) is rotatably connected between the fixed plate (405) and rotating frame (402), and second motor is fixedly embedded and installed on one side surface of rotating frame (402) and can drive rotating plate (406) to rotate.

7. The crankshaft casting burr removal apparatus according to claim 6, characterized by, Multiple sliding grooves (407) are equiangularly formed on one side surface of fixed plate (405), multiple arc-shaped grooves (408) are equiangularly formed on one side surface of rotating plate (406), sliding block (409) is slidably connected in the sliding groove (407), one end of the sliding block (409) penetrates the sliding groove (407) and is slidably connected with the arc-shaped groove (408), and clamping rod (5) is fixedly installed on the other end surface of the sliding block (409).

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