Crankshaft grinding clamp with limiting function

Abstract

The invention relates to the technical field of crankshaft machining, in particular to a crankshaft grinding clamp with a limiting function, which comprises a clamping assembly and an adjusting assembly, a buffer assembly is mounted above the clamping assembly, the adjusting assembly is located at the upper end of the buffer assembly, and the adjusting assembly comprises a connecting frame, an adjusting track, a sliding block, a C-shaped plate and a bolt. An adjusting rail is installed on the side, close to the central axis of the clamping assembly, of the connecting frame, a sliding block is embedded in the adjusting rail, a C-shaped plate is arranged outside the adjusting rail, and a bolt is installed in the middle of the C-shaped plate. According to the crankshaft grinding device, the clamping structure is arranged, so that the situation that clamping is damaged due to the too large moving distance is avoided while equipment is stably clamped, the buffering structure is arranged, stability of the clamping structure can be facilitated, and the circle center adjusting structure is arranged, so that the crankshaft can be conveniently machined by the grinding device.

Description

Technical Field

[0001] The invention relates to the technical field of engine crankshaft processing, in particular to a crankshaft grinding fixture with a limiting function. Background Art

[0002] The crankshaft is the most important component in the engine. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft needs to be ground during the production process. During the grinding process, a fixture is needed to fix the crankshaft to facilitate the operation of the grinding device.

[0003] During operation, the existing crankshaft grinding fixture requires the cutting device to be constantly adjusted to match the shaft that is not on the center of the circle due to the shape of the crankshaft, which makes the working procedure of the grinding device more complicated. Summary of the Invention

[0004] The object of the present invention is to provide a crankshaft grinding fixture with a limiting function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a clamping assembly and an adjustment assembly, a buffer assembly is installed above the clamping assembly, the adjustment assembly is located at the upper end of the buffer assembly, and the adjustment assembly includes a connecting frame, an adjustment rail, a sliding block, a C-shaped plate and a bolt, the connecting frame is installed with an adjustment rail on the side close to the central axis of the clamping assembly, and the interior of the adjustment rail is inlaid with a sliding block, the outside of the adjustment rail is provided with a C-shaped plate, and a bolt is installed in the middle of the C-shaped plate.

[0006] Preferably, a limiting assembly is provided on one side of the buffer assembly close to the central axis of the clamping assembly, and four limiting assemblies are symmetrically provided.

[0007] Preferably, a three-jaw clamp is connected to a side of the adjustment component close to the central axis of the clamping component, and a side of the three-jaw clamp away from the adjustment component is connected to the engine crankshaft.

[0008] Preferably, the clamping assembly includes a base and a first motor, and the first motor is installed on one side of the base.

[0009] Preferably, the clamping assembly further includes a bidirectional threaded rod and a movable plate, and the rotating end of the first motor is connected to the bidirectional threaded rod, and the movable plate is provided on the outside of the bidirectional threaded rod.

[0010] Preferably, the buffer assembly includes a movable seat, a spring and a guide rod, and a spring is installed in the middle of the upper end of the movable seat, and guide rods are provided on the front and rear sides of the upper end of the movable seat.

[0011] Preferably, the buffer assembly further includes a support plate and a second motor, and the side of the spring away from the movable seat is connected to the support plate, and the second motor is installed on the upper end of the support plate.

[0012] Preferably, the limiting assembly includes a limiting slide rail and a contact sensor, and the limiting slide rail is equipped with a contact sensor.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The device can adjust the position of the engine crankshaft through the sliding structure between the sliding block and the adjustment track, so that the axis of the engine crankshaft to be processed is on the rotating shaft of the second motor, which makes it easier for the grinding device to process the shafts in different positions.

[0015] 2. The device can limit the position of the movable seat through the contact sensor, so that the position of the contact sensor on the limit slide rail can be adjusted according to the length of the engine crankshaft to achieve the limit of the clamping work, which facilitates the stable clamping of the equipment without damaging the engine crankshaft.

[0016] 3. The device relies on the elastic sliding structure formed between the support plate and the movable seat through the guide rod and spring to cushion the support plate, thereby buffering the position of the three-jaw clamp, making it easier for the three-jaw clamp to approach the engine crankshaft, thereby facilitating the precise clamping of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the clamping assembly of the present invention;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of the regulating component of the present invention.

[0020] In the figure: 1. Clamping assembly; 101. Base; 102. First motor; 103. Bidirectional threaded rod; 104. Moving plate; 2. Buffer assembly; 201. Moving seat; 202. Spring; 203. Guide rod; 204. Support plate; 205. Second motor; 3. Limiting assembly; 301. Limiting slide rail; 302. Contact sensor; 4. Adjusting assembly; 401. Connecting frame; 402. Adjusting rail; 403. Sliding block; 404. C-shaped plate; 405. Bolt; 5. Three-jaw clamp; 6. Engine crankshaft. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1 and Figure 3 The present invention provides a technical solution: comprising a clamping assembly 1 and an adjusting assembly 4, wherein a buffer assembly 2 is installed above the clamping assembly 1, the adjusting assembly 4 is located at the upper end of the buffer assembly 2, and the adjusting assembly 4 comprises a connecting frame 401, an adjusting rail 402, a sliding block 403, a C-shaped plate 404 and a bolt 405, an adjusting rail 402 is installed on one side of the connecting frame 401 close to the central axis of the clamping assembly 1, and the sliding block 403 is embedded in the interior of the adjusting rail 402, a C-shaped plate 404 is provided on the outside of the adjusting rail 402, and a bolt 405 is installed in the middle of the C-shaped plate 404;

[0023] The position of the engine crankshaft 6 can be adjusted through the sliding structure between the sliding block 403 and the adjustment track 402, so that the axis of the engine crankshaft 6 to be processed is on the rotating shaft of the second motor 205, thereby facilitating the grinding device to process axes at different positions.

[0024] like Figure 1 and Figure 2 As shown, a limiting component 3 is provided on the side of the buffer component 2 close to the central axis of the clamping component 1, and four limiting components 3 are symmetrically provided. The side of the adjustment component 4 close to the central axis of the clamping component 1 is connected to a three-jaw clamp 5, and the side of the three-jaw clamp 5 away from the adjustment component 4 is connected to the engine crankshaft 6.

[0025] The three-jaw clamp 5 can clamp the convenient part of the engine crankshaft 6 to achieve a fixing effect.

[0026] like Figure 2 As shown, the clamping assembly 1 includes a base 101 and a first motor 102, and the first motor 102 is installed on one side of the base 101. The clamping assembly 1 also includes a bidirectional threaded rod 103 and a movable plate 104, and the rotating end of the first motor 102 is connected to the bidirectional threaded rod 103, and a movable plate 104 is provided on the outside of the bidirectional threaded rod 103.

[0027] The first motor 102 is turned on, thereby driving the bidirectional threaded rod 103 to rotate, so that the two movable plates 104 drive the buffer assembly 2 to move toward the middle.

[0028] like Figure 2As shown, the buffer assembly 2 includes a moving seat 201, a spring 202 and a guide rod 203, and the spring 202 is installed in the middle of the upper end of the moving seat 201, and the guide rod 203 is arranged on the front and rear sides of the upper end of the moving seat 201. The buffer assembly 2 also includes a support plate 204 and a second motor 205, and the side of the spring 202 away from the moving seat 201 is connected to the support plate 204, and the upper end of the support plate 204 is installed with the second motor 205.

[0029] By relying on the elastic sliding structure formed between the support plate 204 and the movable seat 201 through the guide rod 203 and the spring 202, the support plate 204 can be buffered, which plays a buffering role in the position of the three-jaw clamp 5, making it easier for the three-jaw clamp 5 to approach the engine crankshaft 6, thereby facilitating the precise clamping of the equipment, and the second motor 205 can drive the engine crankshaft 6 to rotate.

[0030] like Figure 2 As shown, the limiting assembly 3 includes a limiting slide rail 301 and a contact sensor 302 , and the contact sensor 302 is installed on the limiting slide rail 301 .

[0031] The position of the movable seat 201 can be limited by the contact sensor 302, so that the position of the contact sensor 302 on the limiting slide rail 301 can be adjusted according to the length of the engine crankshaft 6, thereby limiting the clamping work, making it easier for the equipment to clamp stably without damaging the engine crankshaft 6.

[0032] Working principle: First, according to the length of the engine crankshaft 6, the contact sensor 302 is slid on the limit slide 301 for position adjustment, and the engine crankshaft 6 is placed between the two three-claw clamps 5. At this time, the first motor 102 is turned on, thereby driving the bidirectional threaded rod 103 to rotate, so that the two moving plates 104 drive the buffer assembly 2 to the middle until the contact sensor 302 contacts the moving seat 201, thereby controlling the first motor 102 to stop working. At this time, the three-claw clamp 5 will squeeze the engine crankshaft 6, and at the same time rely on the elastic telescopic structure formed by the support plate 204 through the guide rod 203 and the spring 202 and the moving seat 201 to make the three-claw clamp 5 and the engine crankshaft 6 close to each other. The engine crankshaft 6 is in contact more firmly, and then the staff uses the tool to control the three-jaw clamp 5 to clamp the two ends of the engine crankshaft 6, thereby completing the fixation of the engine crankshaft 6, and then loosen the bolt 405, and rely on the sliding structure between the sliding block 403 and the adjustment track 402 to adjust the position of the engine crankshaft 6, so that the axis of the required processing position of the engine crankshaft 6 is aligned with the rotation axis of the second motor 205, and then fix the C-shaped plate 404 with the bolt 405 to achieve the position fixation of the three-jaw clamp 5. At this time, turn on the second motor 205 to drive the engine crankshaft 6 to rotate, so as to facilitate the work of the grinding device and process the engine crankshaft 6.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A crankshaft grinding fixture with a limiting function, comprising a clamping assembly (1) and an adjusting assembly (4), characterized in that: A buffer assembly (2) is installed above the clamping assembly (1), and the adjustment assembly (4) is located at the upper end of the buffer assembly (2). The adjustment assembly (4) comprises a connecting frame (401), an adjustment track (402), a sliding block (403), a C-shaped plate (404) and a bolt (405). The adjustment track (402) is installed on one side of the connecting frame (401) close to the central axis of the clamping assembly (1), and the sliding block (403) is embedded in the interior of the adjustment track (402). The C-shaped plate (404) is provided on the outside of the adjustment track (402), and the bolt (405) is installed in the middle of the C-shaped plate (404).

2. The crankshaft grinding fixture with a limiting function according to claim 1, characterized in that: A limiting assembly (3) is provided on one side of the buffer assembly (2) close to the central axis of the clamping assembly (1), and four limiting assemblies (3) are symmetrically provided.

3. The crankshaft grinding fixture with a limiting function according to claim 1, characterized in that: The side of the adjusting component (4) close to the central axis of the clamping component (1) is connected to a three-jaw clamp (5), and the side of the three-jaw clamp (5) away from the adjusting component (4) is connected to an engine crankshaft (6).

4. The crankshaft grinding fixture with a limiting function according to claim 1, characterized in that: The clamping assembly (1) comprises a base (101) and a first motor (102), and the first motor (102) is installed on one side of the base (101).

5. The crankshaft grinding fixture with a limiting function according to claim 4, characterized in that: The clamping assembly (1) further comprises a bidirectional threaded rod (103) and a movable plate (104), and the rotating end of the first motor (102) is connected to the bidirectional threaded rod (103), and the movable plate (104) is provided outside the bidirectional threaded rod (103).

6. The crankshaft grinding fixture with a limiting function according to claim 1, characterized in that: The buffer assembly (2) comprises a movable seat (201), a spring (202) and a guide rod (203), wherein the spring (202) is installed in the middle of the upper end of the movable seat (201), and the guide rods (203) are arranged at the front and rear sides of the upper end of the movable seat (201).

7. The crankshaft grinding fixture with a limiting function according to claim 6, characterized in that: The buffer assembly (2) further comprises a support plate (204) and a second motor (205), and the side of the spring (202) away from the movable seat (201) is connected to the support plate (204), and the upper end of the support plate (204) is mounted with the second motor (205).

8. The crankshaft grinding fixture with a limiting function according to claim 2, characterized in that: The position limiting assembly (3) comprises a position limiting slide rail (301) and a contact sensor (302), and the position limiting slide rail (301) is provided with the contact sensor (302).

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