Crankshaft clamping and positioning device

Abstract

The utility model discloses a clamping and positioning device for a crankshaft, which belongs to the technical field of automobile part processing and comprises a device plate, a lifting plate and a positioning table, a first motor is arranged at the bottom of the device plate, the upper end of the first motor is fixedly connected with a transmission shaft, a lifting rod is fixedly mounted on the transmission shaft, and the lifting plate is in threaded connection with the lifting rod; a rotating shaft is fixedly connected to the upper end of the lifting plate, a positioning table is fixedly mounted on the rotating shaft, a lifting rod is driven to rotate through a first motor arranged at the bottom of the device plate, and then the lifting plate in threaded connection with the outer side of the lifting rod is driven to move in height, so that the height of the positioning table can be quickly adjusted; and then when the transverse angle of the positioning table needs to be adjusted, the positioning table can be grabbed, and the rotating shaft at the bottom of the positioning table can rotate to drive the positioning table to perform transverse angle adjustment, so that the angle of the positioning table can still be adjusted after equipment is installed and fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile component processing, and in particular relates to a clamping and positioning device for a crankshaft. Background Art

[0002] The crankshaft is an important part of the engine that bears impact loads and transmits power. During the processing of the crankshaft, it needs to be clamped and positioned.

[0003] The current crankshaft positioning device has a relatively fixed height, and the device cannot adjust the height and angle of the positioning platform, which makes it difficult to adapt to different scenarios and has low practicality. In addition, since the installation device is mostly an arc-shaped clamp to fix the periphery of the crankshaft, when positioning crankshafts of different diameters, it is necessary to replace arc-shaped clamps of different diameters, which has low adaptability.

[0004] To this end, we have developed a crankshaft clamping and positioning device that uses a device that can quickly adjust the height and lateral angle of the positioning platform, so that it can be used by workers of different heights in different scenarios. It is highly practical. At the same time, we use a more convenient device that can adapt to crankshafts of different lengths or diameters for fixing, which has strong adaptability. Utility Model Content

[0005] The purpose of the utility model is to provide a clamping and positioning device for a crankshaft to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a device plate, a lifting plate and a positioning platform, a first motor is provided at the bottom of the device plate, the number of the first motors is 2, and the first motors are arranged in parallel and mirror-image to each other, the upper end of the first motor is fixed to the bottom of the device plate by screws, the upper end of the first motor is fixedly connected to the transmission shaft, and a lifting rod is fixedly installed on the transmission shaft, a thread is arranged on the outside of the lifting rod for surrounding, and the lifting plate is sleeved on the lifting rod, the inner wall of the lifting plate is also provided with a thread connected to the lifting rod thread, a groove is provided at the upper end of the lifting plate, a gear tooth groove is provided in an annular manner in the groove, and the inside of the groove is fixedly connected to the rotating shaft, elastic gear teeth are arranged around the outer side of the rotating shaft, and a positioning platform is fixedly installed on the rotating shaft.

[0007] As a preferred implementation, a motor bracket is fixedly mounted on the bottom of the device plate, the motor bracket is concave, and the motor bracket is fixed to the bottom of the first motor by screws.

[0008] As a preferred embodiment, a rod groove is opened on the positioning platform, the length of the rod groove is the same as that of the positioning platform, and a threaded rod is placed in the rod groove. The threaded rods are arranged in mirror-image relationship with each other, and the outer side of the threaded rod is fixedly connected to the second motor, and the second motor is fixedly installed on the positioning platform.

[0009] As a preferred embodiment, the outer side of the threaded rod is sleeved with a fixing plate, the inner side of the fixing plate is provided with threads which are threadedly connected with the threaded rod, and rubber blocks are installed at the front end of the fixing plate, and the rubber blocks are arranged equidistantly.

[0010] As a preferred embodiment, wheel columns are installed at the bottom of the device plate. The number of wheel columns is 4 and they are located at the four ends of the device plate. The bottom of the wheel columns is fixedly connected to a universal wheel.

[0011] As a preferred embodiment, the main support frame is fixedly installed on both sides of the device plate, and a groove is provided inside the main support frame, and the auxiliary support frame is movably connected in the groove. Limiting holes are provided on the main support frame and the auxiliary support frame, and a limiting rod is installed through the overlapping part of the limiting holes.

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

[0013] 1. The utility model drives the lifting rod to rotate by setting a first motor at the bottom of the device plate, and then drives the lifting plate connected to the outer thread of the lifting rod to move in height, so that it is convenient to quickly adjust the height of the positioning platform. When the lateral angle of the positioning platform needs to be adjusted, the positioning platform can be grabbed, and the rotating shaft at the bottom of the positioning platform will rotate to drive the positioning platform to adjust the lateral angle. Then, the elastic gear teeth on the rotating shaft will be engaged with the tooth grooves in the groove, so as to achieve a fixing effect, so that the angle of the positioning platform can still be adjusted after the equipment is installed and fixed;

[0014] 2. The utility model places the workpiece by setting up a positioning table, and then uses a second motor to drive the threaded rod to rotate according to the size of the workpiece, thereby driving the upper fixed plates to move inward to clamp and fix the workpiece. This method can effectively clamp and fix workpieces of different sizes, thereby improving the practicability of the equipment.

[0015] 3. The utility model provides a wheel column at the bottom of the device plate to fix the universal wheel for movement, so that it can drive the device to move, thereby improving the convenience of the device. The main support frames on both sides of the device plate are movably connected to the auxiliary support frames. When the device needs to be fixed, the auxiliary support frame can be pulled down and then made higher than the universal wheel so that the universal wheel is suspended from the ground. Then, the overlapping part of the limiting holes of the main support frame and the auxiliary support frame is fixed by a limiting rod to prevent sliding. In this way, the stability can be enhanced when the device is used or placed, and the device can be prevented from sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a front schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a top schematic diagram of the planar structure of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the cross-sectional structure of the utility model.

[0020] In the figure: 1. device plate; 2. motor bracket; 3. first motor; 4. transmission shaft; 5. lifting rod; 6. lifting plate; 7. rotating shaft; 8. positioning platform; 9. rod groove; 10. second motor; 11. threaded rod; 12. fixing plate; 13. rubber block; 14. wheel column; 15. universal wheel; 16. main support frame; 17. auxiliary support frame; 18. limit rod. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] See also Figure 1-4 The utility model provides a clamping and positioning device for a crankshaft, comprising a device plate, a lifting plate and a positioning platform. A first motor is provided at the bottom of the device plate, the number of the first motors is 2, and the first motors are arranged in parallel and mirror images. The upper end of the first motor is fixed to the bottom of the device plate by screws, the upper end of the first motor is fixedly connected to the transmission shaft, and a lifting rod is fixedly installed on the transmission shaft, a thread is arranged on the outside of the lifting rod for surrounding, and the lifting plate is sleeved on the lifting rod, and a thread is also arranged on the inner wall of the lifting plate for thread connection with the lifting rod, a groove is provided at the upper end of the lifting plate, a gear tooth groove is arranged in an annular manner in the groove, and the inside of the groove is fixedly connected to the rotating shaft, elastic gear teeth are arranged around the outer side of the rotating shaft, and a positioning platform is fixedly installed on the rotating shaft.

[0024] By adopting the above technical solution: the first motor 3 at the bottom of the device plate 1 is used to drive the lifting rod 5 to rotate, and then the lifting plate 6 connected to the outer side of the lifting rod 5 with a thread is driven to move in height, so that it is convenient to quickly adjust the height of the positioning platform 8. When the lateral angle of the positioning platform 8 needs to be adjusted, the positioning platform 8 can be grabbed, and the rotating shaft 7 at the bottom of the positioning platform 8 will rotate to drive the positioning platform 8 to adjust the lateral angle. Then, the elastic gear teeth on the rotating shaft 7 will be engaged with the tooth grooves in the groove, so as to achieve a fixing effect, so that the angle of the positioning platform 8 can be adjusted after the equipment is installed and fixed.

[0025] In this embodiment, a motor bracket 2 is fixedly installed at the bottom of the device plate 1, and a first motor 3 is fixedly installed on the motor bracket 2;

[0026] More specifically, the motor bracket 2 is concave, and the motor bracket 2 is fixed to the bottom of the first motor 3 by screws.

[0027] Through this design, the motor bracket 2 is used to support the bottom of the first motor 3 to provide stability for the first motor 3 .

[0028] In this embodiment, a rod groove 9 is provided on the positioning platform 8, and a threaded rod 11 is placed in the rod groove 9, and the outer side of the threaded rod 11 is fixedly connected to the second motor 10;

[0029] Specifically, the length of the rod groove 9 is the same as that of the positioning platform 8, the threaded rods 11 are arranged in mirror image, and the second motor 10 is fixedly installed with the positioning platform;

[0030] Through this design, the second motor 10 can be used to drive the threaded rod 11 to rotate according to the size of the workpiece, thereby driving the upper fixed plate 12 to move inward to clamp and fix the workpiece. This method can effectively clamp and fix workpieces of different sizes, thereby improving the practicality of the equipment.

[0031] In this embodiment, the outer side of the threaded rod 11 is sleeved with a fixing plate 12, and a rubber block 13 is installed at the front end of the fixing plate 12;

[0032] Specifically, the fixing plate 12 is provided with threads inside thereof and is threadedly connected with the threaded rod 11, and a rubber block 13 is installed at the front end of the fixing plate 12, and the rubber blocks 13 are arranged equidistantly;

[0033] With this design, the rubber block 13 is used to contact both sides of the crankshaft, which can provide a better fixing effect due to the high friction. At the same time, the soft rubber block 13 can prevent the crankshaft from being squeezed by the fixing plate 12 and causing damage.

[0034] In this embodiment, a wheel column 14 is installed at the bottom of the device plate 1, and the bottom of the wheel column 14 is fixedly connected to a universal wheel 15;

[0035] Specifically, the number of wheel posts 14 is 4 and they are located at the four ends of the device plate 1, and the universal wheel 15 can rotate 360 ​​degrees;

[0036] Through this design, the wheel column 14 at the bottom of the device plate 1 is fixedly connected to the universal wheel 15 for movement, so that it can drive the device to move, thereby improving the convenience of the device.

[0037] In this embodiment, the main support frame 16 is fixedly installed on both sides of the device plate 1, and the lower end of the main support frame 16 is movably connected to the auxiliary support frame 17, and the limiting rod 18 is installed through the overlapping limiting holes of the main support frame 16 and the auxiliary support frame 17;

[0038] Specifically, a groove is provided inside the main support frame 16, and the auxiliary support frame 17 is movably connected in the groove. Limiting holes are provided on both the main support frame 16 and the auxiliary support frame 17, and a limiting rod 18 is installed through the overlapping part of the limiting holes;

[0039] Through this design, when the equipment needs to be fixed, the auxiliary support frame 17 can be pulled downward, and then its height can be made higher than the universal wheel 15 so that the universal wheel 15 is suspended from the ground. Then, the limiting rod 18 can be used to fix the overlapping part of the limiting holes of the main support frame 16 and the auxiliary support frame 17 to prevent sliding. This can make the equipment more stable when used or placed, and prevent the equipment from sliding.

[0040] The working principle and use process of the utility model are as follows: first, the first motor 3 at the bottom of the device plate 1 is used to drive the lifting rod 5 to rotate, and then the lifting plate 6 connected to the outer thread of the lifting rod 5 is driven to move in height, so that it is convenient to quickly adjust the height of the positioning platform 8. Then, when the lateral angle of the positioning platform 8 needs to be adjusted, the positioning platform 8 can be grabbed, and the rotating shaft 7 at the bottom of the positioning platform 8 will rotate to drive the positioning platform 8 to adjust the lateral angle. Then, the elastic gear teeth on the rotating shaft 7 will be engaged with the tooth grooves in the groove, so as to achieve a fixing effect, so that the angle of the positioning platform 8 can still be adjusted after the equipment is installed and fixed, and the second motor 10 can be used to drive the threaded rod 11 to rotate according to the size of different workpieces. , thereby driving the upper fixing plates 12 to move inward to clamp and fix the workpiece. This method can effectively clamp and fix workpieces of different sizes, thereby improving the practicability of the equipment. The rubber blocks 13 are used to contact the two sides of the crankshaft. Due to the high friction, a better fixing effect can be provided. At the same time, the soft rubber blocks 13 can prevent the crankshaft from being squeezed by the fixing plates 12 and causing damage. When the equipment needs to be fixed, the auxiliary support frame 17 can be pulled downward, and then its height can be made higher than the universal wheel 15 so that the universal wheel 15 is suspended from the ground. Then, the limiting rod 18 is used to fix the overlapping part of the limiting holes of the main support frame 16 and the auxiliary support frame 17 to prevent sliding. This can make the equipment more stable when used or placed, and prevent the equipment from sliding.

[0041] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping and positioning device for a crankshaft, characterized in that: The invention comprises a device plate (1), a lifting plate (6) and a positioning platform (8); a first motor (3) is provided at the bottom of the device plate (1); the upper end of the first motor (3) is fixedly connected to a transmission shaft (4); a lifting rod (5) is fixedly installed on the transmission shaft (4); the lifting plate (6) is sleeved on the lifting rod (5); the upper end of the lifting plate (6) is fixedly connected to a rotating shaft (7); and the positioning platform (8) is fixedly installed on the rotating shaft (7).

2. A crankshaft clamping and positioning device according to claim 1, characterized in that: A motor bracket (2) is fixedly mounted on the bottom of the device plate (1), and a first motor (3) is fixedly mounted on the motor bracket (2).

3. The crankshaft clamping and positioning device according to claim 1, characterized in that: The positioning platform (8) is provided with a rod groove (9), a threaded rod (11) is placed in the rod groove (9), and the outer side of the threaded rod (11) is fixedly connected to a second motor (10).

4. A crankshaft clamping and positioning device according to claim 3, characterized in that: The outer side of the threaded rod (11) is sleeved with a fixing plate (12), and a rubber block (13) is installed at the front end of the fixing plate (12).

5. The crankshaft clamping and positioning device according to claim 3, characterized in that: A wheel column (14) is installed at the bottom of the device plate (1), and the bottom of the wheel column (14) is fixedly connected to a universal wheel (15).

6. The crankshaft clamping and positioning device according to claim 1, characterized in that: The main support frames (16) are fixedly installed on both sides of the device plate (1), and the lower end of the main support frame (16) is movably connected to the auxiliary support frame (17), and a limiting rod (18) is installed through the overlapping limiting holes of the main support frame (16) and the auxiliary support frame (17).

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