Transmission shaft straightening device

Abstract

The utility model discloses a transmission shaft straightening device which comprises a base, a lower die is installed on the top of the base, one end of the base is fixedly connected with a machine frame, an electric sliding table is installed on the inner side of the top of the machine frame in a sliding mode, and a first air cylinder is installed on the top of the electric sliding table. A first air cylinder is installed on the base, an upper mold is installed at the end of an output shaft of the first air cylinder, a rotating shaft is rotationally connected to the end of the base, a clamping mechanism is installed on the outer wall of the rotating shaft, and the clamping mechanism is used for clamping and limiting a transmission shaft. The two first connecting rods and the second connecting rods in the moving state drive the two clamping pieces to move close to or away from each other, then the two clamping pieces in the close state clamp and limit the transmission shaft, and the situation that when the motor drives the transmission shaft to rotate through the rotating shaft, the transmission shaft is likely to fall off from the lower die can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shaft straightening, in particular to a transmission shaft straightening device. Background Art

[0002] The drive shaft is an important component for transmitting power in the automobile transmission system. Its function is to transmit the power of the engine to the wheels together with the gearbox and drive axle, so that the car can generate driving force.

[0003] During the production process of the drive shaft, the slender structure of the drive shaft itself makes it easy for it to be crooked due to various reasons. Therefore, it is necessary to use a drive shaft straightening device to straighten the drive shaft. When straightening the drive shaft, the existing drive shaft straightening device places the drive shaft on multiple lower molds, and drives the upper mold to descend through the cylinder to straighten the drive shaft, and the motor drives the drive shaft to rotate through the rotating shaft to adjust the straightening surface of the drive shaft. However, both sides of the drive shaft are active during the rotation process, and there is a lack of a limiting structure to limit the rotating drive shaft, which makes it easy for the drive shaft to fall off the lower mold when the motor drives the drive shaft to rotate through the rotating shaft. Utility Model Content

[0004] The utility model aims to provide a transmission shaft straightening device to solve the problem in the above background technology that the transmission shaft is easily dropped from the lower mold when the motor drives the transmission shaft to rotate through the rotating shaft.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission shaft straightening device, comprising a base, a lower mold is installed on the top of the base, one end of the base is fixedly connected to a frame, an electric slide is slidably installed on the inner side of the top of the frame, a first cylinder is installed on the top of the electric slide, an upper mold is installed on the end of the output shaft of the first cylinder, the end of the base is rotatably connected to a rotating shaft, a clamping mechanism is installed on the outer wall of the rotating shaft, and the clamping mechanism is used to clamp and limit the transmission shaft;

[0006] The clamping mechanism comprises a driving assembly, a clamping member assembly and a connecting rod assembly;

[0007] The driving assembly is used to drive the connecting rod assembly to operate;

[0008] The connecting rod assembly in the running state is used to drive the clamping member assembly to run;

[0009] The clamping member assembly in the operating state is used to clamp and limit the transmission shaft.

[0010] Preferably, a motor is installed at the other end of the base, the end of the output shaft of the motor is connected to the rotating shaft, and the output shaft of the motor in a running state is used to drive the rotating shaft to rotate.

[0011] Preferably, the driving assembly comprises a bracket and a second cylinder;

[0012] One end of the bracket is rotatably connected to the outer wall of the rotating shaft, and the second cylinder is installed on the inner end of the bracket.

[0013] Preferably, the connecting rod assembly includes a moving rod, a fixed rod, a first connecting rod and a second connecting rod;

[0014] The movable rod is connected to the end of the output shaft of the second cylinder, the fixed rod is fixedly connected to the inner end of the bracket, one end of the first connecting rod is rotatably connected to the end of the movable rod, one end of the second connecting rod is rotatably connected to the end of the fixed rod, and the other end of the first connecting rod is rotatably connected to the other end of the second connecting rod.

[0015] Preferably, the output shaft of the second cylinder in the operating state is used to drive the moving rod to move axially, and the moving rod in the moving state is used to drive the first connecting rod and the second connecting rod to move synchronously.

[0016] Preferably, the clamping member assembly comprises two clamping members and a plurality of rollers;

[0017] The clamping member is fixedly connected to the end of the second connecting rod, and the roller is rotatably mounted on the inner wall of the clamping member.

[0018] Preferably, the clamping member is in an arc-shaped structure, and the first connecting rod and the second connecting rod in a moving state are used to drive the two clamping members to move closer to or away from each other.

[0019] Compared with the prior art, the beneficial effect of the utility model is: by setting up a clamping mechanism, the second cylinder drives the moving rod, the two first connecting rods and the second connecting rod to move, and the two first connecting rods and the second connecting rod in a moving state drive the two clamping parts to move closer or farther away from each other, and then the two clamping parts in a close state clamp and limit the transmission shaft, which can prevent the transmission shaft from falling off the lower mold when the motor drives the transmission shaft to rotate through the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the clamping state of two clamping members of the utility model;

[0023] Figure 4It is a schematic diagram of the structure of the two clamping members of the utility model in the open state.

[0024] In the figure: 1. base; 2. frame; 3. electric slide; 4. first cylinder; 5. upper mold; 6. lower mold; 7. motor; 8. rotating shaft; 9. clamping mechanism; 901. bracket; 902. second cylinder; 903. moving rod; 904. fixed rod; 905. first connecting rod; 906. second connecting rod; 907. clamping member; 908. roller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution for a transmission shaft straightening device: a transmission shaft straightening device, comprising a base 1, a lower mold 6 is installed on the top of the base 1, one end of the base 1 is fixedly connected to a frame 2, an electric slide 3 is slidably installed on the inner side of the top of the frame 2, a first cylinder 4 is installed on the top of the electric slide 3, an upper mold 5 is installed on the end of the output shaft of the first cylinder 4, an end of the base 1 is rotatably connected to a rotating shaft 8, an outer wall of the rotating shaft 8 is installed with a clamping mechanism 9, and the clamping mechanism 9 is used to clamp and limit the transmission shaft;

[0027] The clamping mechanism 9 includes a driving assembly, a clamping member assembly and a connecting rod assembly;

[0028] The driving assembly is used to drive the connecting rod assembly to operate;

[0029] The connecting rod assembly in the running state is used to drive the clamping component assembly to run;

[0030] The clamping component assembly in the operating state is used to clamp and limit the transmission shaft.

[0031] Please refer to Figure 1 A motor 7 is installed at the other end of the base 1, and the end of the output shaft of the motor 7 is connected to the rotating shaft 8, and the output shaft of the motor 7 in the running state is used to drive the rotating shaft 8 to rotate.

[0032] In this embodiment, the motor 7 is powered on and operated, so that the output shaft of the motor 7 in the operating state drives the rotating shaft 8 to rotate, and the rotating shaft 8 in the rotating state drives the transmission shaft to rotate, thereby adjusting the straightening surface of the transmission shaft.

[0033] Please refer to Figure 2, the driving assembly includes a bracket 901 and a second cylinder 902;

[0034] One end of the bracket 901 is rotatably connected to the outer wall of the rotating shaft 8 , and the second cylinder 902 is installed on the inner end of the bracket 901 .

[0035] In this embodiment, the second cylinder 902 is powered on and operated, so that the output shaft of the second cylinder 902 in operation drives the moving rod 903 to move axially in the direction close to the transmission shaft.

[0036] Please refer to Figure 3 , the connecting rod assembly includes a moving rod 903, a fixed rod 904, a first connecting rod 905 and a second connecting rod 906;

[0037] The movable rod 903 is connected to the end of the output shaft of the second cylinder 902, the fixed rod 904 is fixedly connected to the inner end of the bracket 901, one end of the first connecting rod 905 is rotatably connected to the end of the movable rod 903, one end of the second connecting rod 906 is rotatably connected to the end of the fixed rod 904, and the other end of the first connecting rod 905 is rotatably connected to the other end of the second connecting rod 906.

[0038] In this embodiment: the moving rod 903 in the moving state drives the two first connecting rods 905 and the second connecting rod 906 to move inward synchronously, so that one end of the first connecting rod 905 is rotationally connected to the moving rod 903, and one end of the second connecting rod 906 is rotationally connected to the fixed rod 904, and the other end of the first connecting rod 905 is rotationally connected to the other end of the second connecting rod 906, and then the two first connecting rods 905 and the second connecting rod 906 in the inward moving state drive the two clamping members 907 to move closer to each other.

[0039] Please refer to Figure 3 The output shaft of the second cylinder 902 in the running state is used to drive the moving rod 903 to move axially, and the moving rod 903 in the moving state is used to drive the first connecting rod 905 and the second connecting rod 906 to move synchronously.

[0040] In this embodiment: the output shaft of the second cylinder 902 in operation drives the moving rod 903 to move axially toward the transmission shaft, and the moving rod 903 in the moving state drives the two first connecting rods 905 and the second connecting rod 906 to move inward synchronously.

[0041] Please refer to Figure 4 , the clamping member assembly includes two clamping members 907 and a plurality of rollers 908;

[0042] The clamping member 907 is fixedly connected to the end of the second connecting rod 906 , and the roller 908 is rotatably mounted on the inner wall of the clamping member 907 .

[0043] In this embodiment: the transmission shaft is clamped and limited by two clamping members 907 in a close state, and the transmission shaft in a rotating state is clamped and driven to rotate internally by the two clamping members 907, and a plurality of rollers 908 rotatably installed on the inner wall of the clamping members 907 assist the rotation of the transmission shaft, thereby avoiding interference with the normal rotation of the transmission shaft.

[0044] Please refer to Figure 4 The clamping member 907 is in an arc-shaped structure, and the first connecting rod 905 and the second connecting rod 906 in a moving state are used to drive the two clamping members 907 to move closer to or away from each other.

[0045] In this embodiment: the two first connecting rods 905 and the second connecting rod 906 moving inward drive the two clamping members 907 to move closer to each other, so that the two clamping members 907 in the approaching state clamp and limit the transmission shaft, and the two clamping members 907 moving away from each other can release the clamping limit on the transmission shaft.

[0046] Working principle: when the transmission shaft needs to be straightened, the transmission shaft is first placed on a plurality of lower molds 6, and at this time, the second cylinder 902 is powered on and operated, so that the output shaft of the second cylinder 902 in the operating state drives the moving rod 903 to move axially in the direction close to the transmission shaft, and the moving rod 903 in the moving state drives the two first connecting rods 905 and the second connecting rod 906 to move inward synchronously, so that one end of the first connecting rod 905 is rotationally connected to the moving rod 903, and one end of the second connecting rod 906 is rotationally connected to the fixed rod 904, and the other end of the first connecting rod 905 is rotationally connected to the other end of the second connecting rod 906, and then the two first connecting rods 905 and the second connecting rod 906 in the inward moving state drive the two clamping members 907 to move closer to each other, so that the two clamping members 907 in the close state clamp and limit the transmission shaft. As mentioned above, the two clamping members 907 that are far away from each other can release the clamping limit on the transmission shaft;

[0047] At this time, the first cylinder 4 and the motor 7 are powered on and operated, so that the output shaft of the operating first cylinder 4 drives the upper mold 5 to move downward, and the output shaft of the operating motor 7 drives the rotating shaft 8 to rotate. Since one end of the bracket 901 and the rotating shaft 8 are in a rotating connection structure, interference with the normal rotation of the rotating shaft 8 is avoided. The rotating shaft 8 drives the transmission shaft to rotate, and the straightening surface of the transmission shaft is adjusted. The clamping drive of the two clamping members 907 of the rotating transmission shaft rotates internally, and the multiple rollers 908 rotatably installed on the inner wall of the clamping member 907 assist the transmission shaft to rotate, thereby avoiding interference with the normal rotation of the transmission shaft.

[0048] 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 transmission shaft straightening device, comprising a base (1), a lower mold (6) is installed on the top of the base (1), one end of the base (1) is fixedly connected to a frame (2), an electric slide (3) is slidably installed on the inner side of the top of the frame (2), a first cylinder (4) is installed on the top of the electric slide (3), an upper mold (5) is installed on the end of the output shaft of the first cylinder (4), and a rotating shaft (8) is rotatably connected to the end of the base (1), characterized in that: The outer wall of the rotating shaft (8) is provided with a clamping mechanism (9), and the clamping mechanism (9) is used to clamp and limit the transmission shaft; The clamping mechanism (9) comprises a driving assembly, a clamping member assembly and a connecting rod assembly; The driving assembly is used to drive the connecting rod assembly to operate; The connecting rod assembly in the running state is used to drive the clamping member assembly to run; The clamping member assembly in the operating state is used to clamp and limit the transmission shaft.

2. A transmission shaft straightening device according to claim 1, characterized in that: A motor (7) is installed at the other end of the base (1); the end of the output shaft of the motor (7) is connected to the rotating shaft (8); and the output shaft of the motor (7) in a running state is used to drive the rotating shaft (8) to rotate.

3. A transmission shaft straightening device according to claim 1, characterized in that: The driving assembly comprises a bracket (901) and a second cylinder (902); One end of the bracket (901) is rotatably connected to the outer wall of the rotating shaft (8), and the second cylinder (902) is installed on the inner end of the bracket (901).

4. A transmission shaft straightening device according to claim 3, characterized in that: The connecting rod assembly includes a moving rod (903), a fixed rod (904), a first connecting rod (905) and a second connecting rod (906); The movable rod (903) is connected to the end of the output shaft of the second cylinder (902), the fixed rod (904) is fixedly connected to the inner end of the bracket (901), one end of the first connecting rod (905) is rotatably connected to the end of the movable rod (903), one end of the second connecting rod (906) is rotatably connected to the end of the fixed rod (904), and the other end of the first connecting rod (905) is rotatably connected to the other end of the second connecting rod (906).

5. A transmission shaft straightening device according to claim 4, characterized in that: The output shaft of the second cylinder (902) in the operating state is used to drive the moving rod (903) to move axially, and the moving rod (903) in the moving state is used to drive the first connecting rod (905) and the second connecting rod (906) to move synchronously.

6. A transmission shaft straightening device according to claim 4, characterized in that: The clamping member assembly comprises two clamping members (907) and a plurality of rollers (908); The clamping member (907) is fixedly connected to the end of the second connecting rod (906), and the roller (908) is rotatably mounted on the inner wall of the clamping member (907).

7. A transmission shaft straightening device according to claim 5, characterized in that: The clamping member (907) has an arc-shaped structure, and the first connecting rod (905) and the second connecting rod (906) in a moving state are used to drive the two clamping members (907) to move closer to or away from each other.

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