Chamfer grinding device for crankshaft production

Abstract

The utility model discloses a crankshaft production chamfer grinding device, and relates to the technical field of grinding, the crankshaft production chamfer grinding device comprises an L-shaped workbench, a driving groove is formed in the rear side of the L-shaped workbench, open grooves are formed in the two sides of the top of the L-shaped workbench, and a grinding assembly is arranged on the front side of the top of the L-shaped workbench, so that the crankshaft chamfer grinding angle can be adjusted conveniently; and a fixing assembly is arranged in the open groove and used for fixing crankshafts of different sizes, the grinding assembly comprises a threaded rod, the two ends of the threaded rod are connected with the two ends of the driving groove through bearings, and a threaded cylinder is connected to the threaded rod through threads. According to the crankshaft chamfering and grinding device, the threaded cylinder horizontally moves, the L-shaped adjusting frame is rotated to drive the grinding disc to incline along the front end of the telescopic rod, and therefore chamfering and grinding of any angle can be conveniently conducted on a fixed crankshaft, the overall chamfering and grinding efficiency of the crankshaft is improved, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, specifically to a crankshaft chamfering grinding device. Background Technology

[0002] The crankshaft, as an automotive component, is one of the most important parts of the engine. It bears the force transmitted from the connecting rod and converts it into torque, which is then output through the crankshaft to drive other accessories on the engine. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the journal surface must be wear-resistant, have uniform operation, and good balance. During the production process, a chamfering grinding device is used to remove burrs and sharp parts from the surface of the crankshaft.

[0003] For example, Chinese patent application CN201721320046.7 discloses a chamfering grinding device for crankshaft production. The device includes a worktable, a fixed base fixedly mounted on the top of the worktable, and a bracket slidably mounted on the top of the worktable, located on one side of the fixed base. The fixed base has a placement cavity, and a rotary motor is fixedly mounted on the bottom inner wall of the placement cavity. A rotating column is fixedly mounted on the output shaft of the rotary motor, and the top end of the rotating column extends above the fixed base. A grinding wheel is fixedly sleeved on the top end of the rotating column, and an abrasive belt is fixedly sleeved on the grinding wheel. A stepper motor is fixedly mounted on the side of the fixed base near the bracket, and a lead screw is fixedly mounted on the output shaft of the stepper motor. This invention can not only grind chamfers on crankshaft workpieces, but also has a simple structure, is easy to manufacture, and is convenient for widespread use.

[0004] However, in actual use, the above-mentioned device performs chamfering grinding on the crankshaft using a grinding wheel and abrasive belt. The angle of the grinding wheel and abrasive belt is fixed, which makes it inconvenient to adjust the angle to grind the crankshaft at any angle, reducing the grinding effect of the crankshaft and having limitations. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a crankshaft chamfering grinding device. By moving the threaded cylinder horizontally and rotating the L-shaped adjusting frame to drive the grinding disc to tilt along the front end of the telescopic rod, it is convenient to perform chamfering grinding at any angle on the fixed crankshaft, thereby improving the efficiency of overall crankshaft chamfering grinding. It is also easy to operate and can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a crankshaft production chamfering grinding device, including an L-shaped worktable, a drive groove is provided inside the rear side of the L-shaped worktable, and slots are provided on both sides of the top of the L-shaped worktable;

[0007] The L-shaped worktable is equipped with a grinding component on the top front side, which facilitates adjustment of the crankshaft chamfering grinding angle;

[0008] The slot is equipped with a fixing component for fixing crankshafts of different sizes;

[0009] The grinding assembly includes a threaded rod, both ends of which are connected to both ends of the drive groove via bearings. A threaded cylinder is threadedly connected to the threaded rod, and a telescopic rod is fixedly provided on the front side of the threaded cylinder. An L-shaped adjusting frame is provided at the front end of the telescopic rod, and a grinding disc is provided at the bottom front side of the L-shaped adjusting frame.

[0010] Preferably, the two rear walls of the L-shaped adjusting frame are connected by a threaded first wing bolt for fixing the telescopic rod and the L-shaped adjusting frame. A fixing box is fixedly provided on the top of the L-shaped adjusting frame, and a first motor is fixedly provided inside the fixing box to facilitate the adjustment of the tilt of the L-shaped adjusting frame.

[0011] Preferably, the output shaft of the first motor passes through the top of the L-shaped adjustment frame and is fixedly connected to the grinding disc. A second motor is fixedly installed at one end of the rear side of the L-shaped worktable. The output shaft of the second motor passes through one side of the L-shaped worktable and is fixedly connected to one end of the threaded rod, so that the second motor can drive the threaded rod to rotate.

[0012] Preferably, the fixing component includes an L-shaped moving stage, which is located on one side of the top of an L-shaped worktable. A T-shaped slider is fixedly provided at the bottom of one side of the L-shaped moving stage, and the T-shaped slider is slidably disposed inside the slot. An opening is provided at the top of the side of the L-shaped moving stage away from the T-shaped slider, and a support platform is fixedly provided at the bottom of the opening to facilitate support of one end of the crankshaft.

[0013] Preferably, the top of the side of the L-shaped moving stage away from the T-shaped slider is connected by a second wing bolt via a thread, and the bottom end of the second wing bolt is connected by a curved fixing plate via a thread. The curved fixing plate is located on the top of the support platform. Limiting blocks are fixed at both the front and rear ends of the side of the L-shaped moving stage away from the T-shaped slider. Bolts for fixing the L-shaped worktable and the L-shaped moving stage are connected by threads on the limiting blocks. One end of the crankshaft is located between the support platform and the curved fixing plate, which facilitates the fixing and clamping of crankshafts of different sizes.

[0014] Preferably, the front side of the L-shaped workbench is fixedly provided with a control panel for controlling the operation of the first motor and the second motor, and each of the four corners of the bottom of the L-shaped workbench is fixedly provided with a caster wheel to facilitate the movement of this utility model.

[0015] Compared with the prior art, this utility model provides a crankshaft chamfering grinding device, which has the following beneficial effects:

[0016] 1. This utility model uses the rotation of the threaded rod to drive the threaded cylinder to move horizontally, while adjusting the length of the telescopic rod and unscrewing the first wing bolt to facilitate the rotation of the L-shaped adjustment frame to drive the grinding disc to tilt along the front end of the telescopic rod. This facilitates chamfering grinding of the fixed crankshaft at any angle, improves the efficiency of overall crankshaft chamfering grinding, and is easy to operate.

[0017] 2. This utility model uses an L-shaped moving table to drive a T-shaped slider to move horizontally along the slot, so that the two L-shaped moving tables move closer or further apart. The two ends of the crankshaft are inserted into the top of the two support tables respectively. Then, the second butterfly bolt is turned to drive the arc-shaped fixing plate to press one end of the crankshaft, which makes it easier to fix crankshafts of different sizes, improves stability, and facilitates subsequent chamfering and grinding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a rear view of the overall structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the grinding assembly structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the fixing component structure of this utility model.

[0023] In the diagram: 1. L-shaped worktable; 2. Drive slot; 3. Grinding assembly; 4. Slotting; 5. Fixing assembly; 6. Control panel; 7. Moving wheels.

[0024] 31 Threaded rod, 32 Threaded cylinder, 33 Telescopic rod, 34 L-shaped adjusting frame, 35 First wing bolt, 36 Grinding disc, 37 Fixed box, 38 First motor, 39 Second motor, 51 L-shaped moving table, 52 Support table, 53 Arc-shaped fixed plate, 54 Second wing bolt, 55 Limiting block, 56 T-shaped slider. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5 As shown, this utility model provides a crankshaft chamfering grinding device, including an L-shaped worktable 1. The L-shaped worktable 1 has a drive groove 2 inside the rear side, and slots 4 are opened on both sides of the top of the L-shaped worktable 1. The four corners of the bottom of the L-shaped worktable 1 are fixed with moving wheels 7 to facilitate the movement of this utility model.

[0027] like Figure 1-4 As shown, the L-shaped worktable 1 has a grinding assembly 3 on its top front side, which facilitates the adjustment of the crankshaft chamfering grinding angle. The grinding assembly 3 includes a threaded rod 31, and both ends of the threaded rod 31 are connected to both ends of the drive groove 2 through bearings. A threaded cylinder 32 is threadedly connected to the threaded rod 31. A telescopic rod 33 is fixedly provided on the front side of the threaded cylinder 32. An L-shaped adjusting frame 34 is provided at the front end of the telescopic rod 33. A grinding disc 36 is provided at the bottom front side of the L-shaped adjusting frame 34. A first wing bolt 35 for fixing the telescopic rod 33 and the L-shaped adjusting frame 34 is threadedly connected between the two rear walls of the L-shaped adjusting frame 34.

[0028] The top of the L-shaped adjustment frame 34 is fixedly equipped with a fixed box 37. The fixed box 37 is equipped with a first motor 38, which facilitates the adjustment of the tilt of the L-shaped adjustment frame 34. The output shaft of the first motor 38 passes through the top of the L-shaped adjustment frame 34 and is fixedly connected to the grinding disc 36. A second motor 39 is fixedly equipped at one end of the rear side of the L-shaped worktable 1. The output shaft of the second motor 39 passes through one side of the L-shaped worktable 1 and is fixedly connected to one end of the threaded rod 31, which facilitates the second motor 39 to drive the threaded rod 31 to rotate. A control panel 6 for controlling the operation of the first motor 38 and the second motor 39 is fixedly equipped at the front side of the L-shaped worktable 1.

[0029] By setting up the grinding assembly 3, when chamfering grinding is required on the fixed crankshaft, the control panel 6 controls the second motor 39 to work according to the grinding position. The second motor 39 drives the threaded rod 31 inside the drive slot 2 to rotate. The threaded rod 31 drives the threaded cylinder 32 on it to move horizontally along the threaded rod 31, while simultaneously driving the telescopic rod 33 and the grinding disc 36 on the front side to move together. After adjusting the length of the telescopic rod 33, the first wing bolt 35 is loosened to facilitate the rotation of the L-shaped adjustment bracket 34 to drive the grinding disc 36 to tilt along the front end of the telescopic rod 33. Finally, the control panel 6 controls the first motor 38 inside the fixing box 37 to work, thereby facilitating chamfering grinding of the fixed crankshaft at any angle, improving the efficiency of the overall chamfering grinding of the crankshaft, and making the operation convenient.

[0030] like Figure 1-3 As shown in Figure 5, a fixing component 5 is provided inside the slot 4 for fixing crankshafts of different sizes. The fixing component 5 includes an L-shaped moving stage 51, which is located on one side of the top of the L-shaped worktable 1. A T-shaped slider 56 is fixedly provided at the bottom of one side of the L-shaped moving stage 51, and the T-shaped slider 56 is slidably disposed inside the slot 4. An opening is provided at the top of the side of the L-shaped moving stage 51 away from the T-shaped slider 56, and a support platform 52 is fixedly provided at the bottom of the opening to facilitate support of one end of the crankshaft.

[0031] The top of the L-shaped moving stage 51 away from the T-shaped slider 56 is connected by a second wing bolt 54 via a thread. The bottom end of the second wing bolt 54 is connected by an arc-shaped fixing plate 53 via a thread. The arc-shaped fixing plate 53 is located on the top of the support platform 52. Limiting blocks 55 are fixed at both the front and rear ends of the side of the L-shaped moving stage 51 away from the T-shaped slider 56. Bolts for fixing the L-shaped worktable 1 and the L-shaped moving stage 51 are connected by threads on the limiting blocks 55. One end of the crankshaft is located between the support platform 52 and the arc-shaped fixing plate 53, which facilitates the fixing and clamping of crankshafts of different sizes.

[0032] By setting the fixing component 5, according to the length and size of the crankshaft, the bolts on the limiting block 55 are unscrewed, and the L-shaped moving stage 51 is pushed to drive the T-shaped slider 56 to move horizontally along the slot 4, so that the two L-shaped moving stages 51 are close to or far apart. Then the bolts on the top of the limiting block 55 are fixed, which makes it easy to fix crankshafts of different lengths. At the same time, the second wing bolt 54 is unscrewed, and the two ends of the crankshaft are inserted into the top of the two support platforms 52 respectively. Then the second wing bolt 54 is turned to drive the arc-shaped fixing plate 53 to press one end of the crankshaft. Then the second wing bolt 54 is fixed, which makes it easy to fix crankshafts of different sizes, improves stability, and facilitates subsequent chamfering and grinding.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A crankshaft chamfering grinding apparatus, comprising an L-shaped worktable (1), characterized in that: The L-shaped workbench (1) has a drive groove (2) inside the rear side, and slots (4) are opened on both sides of the top of the L-shaped workbench (1). The L-shaped worktable (1) is equipped with a grinding assembly (3) on the top front side, which facilitates the adjustment of the crankshaft chamfering grinding angle; The slot (4) is provided with a fixing component (5) for fixing crankshafts of different sizes; The grinding assembly (3) includes a threaded rod (31), both ends of which are connected to both ends of the drive groove (2) by bearings. A threaded cylinder (32) is threadedly connected to the threaded rod (31). A telescopic rod (33) is fixedly provided on the front side of the threaded cylinder (32). An L-shaped adjusting frame (34) is provided at the front end of the telescopic rod (33). A grinding disc (36) is provided at the bottom front side of the L-shaped adjusting frame (34).

2. The crankshaft chamfering grinding apparatus according to claim 1, characterized in that: The two rear walls of the L-shaped adjustment frame (34) are connected by a threaded first wing bolt (35) for fixing the telescopic rod (33) and the L-shaped adjustment frame (34). The top of the L-shaped adjustment frame (34) is fixedly provided with a fixing box (37), and the fixing box (37) is fixedly provided with a first motor (38).

3. The crankshaft chamfering grinding apparatus according to claim 2, characterized in that: The output shaft of the first motor (38) passes through the top of the L-shaped adjustment frame (34) and is fixedly connected to the grinding disc (36). A second motor (39) is fixedly installed at one end of the rear side of the L-shaped worktable (1). The output shaft of the second motor (39) passes through one side of the L-shaped worktable (1) and is fixedly connected to one end of the threaded rod (31).

4. The crankshaft chamfering grinding apparatus according to claim 3, characterized in that: The fixed component (5) includes an L-shaped moving stage (51), which is located on the top side of the L-shaped workbench (1). A T-shaped slider (56) is fixedly provided at the bottom of one side of the L-shaped moving stage (51), and the T-shaped slider (56) is slidably disposed inside the slot (4). An opening is provided at the top of the side of the L-shaped moving stage (51) away from the T-shaped slider (56), and a support platform (52) is fixedly provided at the bottom of the opening.

5. The crankshaft chamfering grinding apparatus according to claim 4, characterized in that: The top of the side of the L-shaped moving stage (51) away from the T-shaped slider (56) is connected by a second wing bolt (54) through a thread. The bottom end of the second wing bolt (54) is connected by an arc-shaped fixing plate (53) through a thread. The arc-shaped fixing plate (53) is located on the top of the support platform (52). Limiting blocks (55) are fixed at both ends of the side of the L-shaped moving stage (51) away from the T-shaped slider (56). Bolts for fixing the L-shaped worktable (1) and the L-shaped moving stage (51) are connected by a thread on the limiting block (55). One end of the crankshaft is located between the support platform (52) and the arc-shaped fixing plate (53).

6. The crankshaft chamfering grinding apparatus according to claim 5, characterized in that: The L-shaped workbench (1) is fixedly provided with a control panel (6) for controlling the first motor (38) and the second motor (39) to work. The four corners of the bottom of the L-shaped workbench (1) are all fixedly provided with casters (7).

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