Transmission shaft assembling and positioning device

Abstract

The utility model relates to the field of rotating shaft assembly, in particular to a transmission shaft assembly positioning device which comprises a punching machine and a working table, the punching machine is fixedly installed at the top end of the working table, a positioning hole is formed in the middle of the working table, and a limiting bearing table corresponding to the positioning hole is arranged at the bottom end of the working table. An installation disc is rotatably installed on a punch of the punching machine, a positioning clamping jaw and a pressing clamping jaw are arranged on the installation disc, and the installation disc is an eccentric chuck. By the adoption of the technical scheme, the positioning clamping jaw and the pressing clamping jaw arranged on the eccentric chuck can be moved to the position of the center shaft by the eccentric chuck, gravity center shifting in the positioning or pressing process is avoided, the device can automatically complete positioning and pressing through the arrangement, and the problem that a rotating shaft needs to be moved is solved.

Description

Technical Field

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

[0002] A rotating shaft is a shaft that bears both bending moment and torque during rotation. It is widely used in various transmission systems. The gear shaft, as a type of rotating shaft, is an important component of the gear transmission system. Generally, for a gear shaft with a ratio of shaft length to gear width less than 5, the gear shaft can be formed by integral machining; for a gear shaft with a ratio greater than 5, the gear and the rotating shaft need to be processed separately and then assembled into the gear shaft. The gears and shafts that make up the gear shaft belong to transition fit, and there is a certain assembly resistance during assembly. At present, the assembly of the gear shaft has always been done by manual assembly process of hammering and hitting. If the hammering force is too large, if the center line of the shaft and the gear is not aligned, it is easy to cause contusion of the mating surface, affect the coaxiality of the gear and the shaft, and make it difficult to disassemble; if the hammering force is too small, it cannot overcome the resistance of transition fit, and the installation cannot be completed, affecting the assembly efficiency. In the use of batch assembly lines, the current assembly process cannot achieve mechanized and continuous production, and the labor intensity of the operator is high. In addition, the automation degree of the existing rotating shaft assembly device is not very high, and the problem of pulling the rotating shaft is easy to occur. Utility Model Content

[0003] The purpose of the utility model is to provide a transmission shaft assembly positioning device to solve the problems existing in the above-mentioned prior art.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A transmission shaft assembly positioning device comprises a punching machine and a workbench, wherein the punching machine is fixedly mounted on the top of the workbench, a positioning hole is arranged in the middle of the workbench, a limiting receiving platform corresponding to the positioning hole is arranged at the bottom of the workbench, a mounting disk is rotatably mounted on the punch of the punching machine, a positioning claw and a pressing claw are arranged on the mounting disk, and the mounting disk is an eccentric chuck.

[0006] By adopting the above technical solution, the positioning claw and pressing claw set on the eccentric chuck can be moved to the center axis position by the eccentric chuck, avoiding the center of gravity shift during the positioning or pressing process. This setting enables the device to automatically complete positioning and pressing, avoiding the problem of needing to move the rotating shaft.

[0007] In a further embodiment, the mounting plate includes a fixed plate, an eccentric shaft, a disc and a servo controller. The fixed plate is rotatably mounted on the punch of the punching machine. The eccentric shaft is eccentrically mounted on the fixed plate through a bearing. The disc is fixedly mounted on the bottom end of the eccentric shaft. The servo controller is used to control the axial rotation of the eccentric shaft. The positioning claws and pressing claws are axially and evenly arranged at the bottom of the disc.

[0008] In a further embodiment, the positioning claw includes a telescopic rod and a suction plate arranged at the bottom of the telescopic rod, and the positioning fixture is adsorbed on the suction plate.

[0009] By adopting the above technical solution, the positioning fixture is made replaceable, which makes it easier for the device to be installed on shafts of different diameters.

[0010] In a further embodiment, the limit supporting platform includes a first ear plate, a second ear plate and a positioning plate, the first ear plate and the second ear plate are respectively arranged on both sides of the positioning plate, the first ear plate and the second ear plate are both fixedly connected to the workbench, the first ear plate and the second ear plate are both bolted and fixed to the positioning plate, a plurality of pin holes are arranged on the top of the positioning plate, an avoidance hole is arranged on the top of the positioning plate, and a magnetic buckle is arranged in the pin hole.

[0011] In a further embodiment, a positioning fixture corresponding to the positioning hole is provided on the top of the workbench, and an avoidance groove is provided on the positioning fixture.

[0012] In a further embodiment, a supporting fixture is provided on the positioning plate, a plurality of positioning pins are provided at the bottom of the supporting fixture, and the positioning pins are inserted into the pin holes.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. The positioning claw and the pressing claw provided on the eccentric chuck can be moved to the central axis position by the eccentric chuck, thus avoiding the center of gravity shift during the positioning or pressing process. This setting enables the device to automatically complete the positioning and pressing, thus avoiding the problem of moving the rotating shaft;

[0015] 2. The positioning claw includes a telescopic rod and a suction plate arranged at the bottom of the telescopic rod, and the suction plate is adsorbed with a positioning fixture. This can make the positioning fixture replaceable, making it easier for the device to be installed on shafts of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the connection relationship between the installation plate and the punching machine of the utility model.

[0018] In the figure, 1. punching machine; 2. workbench; 3. limit receiving platform; 31. first ear plate; 32. second ear plate; 33. positioning plate; 4. mounting plate; 41. fixing plate; 42. eccentric rotating shaft; 43. disc; 44. servo controller; 5. positioning claw; 51. telescopic rod; 52. suction plate; 53. positioning fixture; 6. pressing claw. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, "plurality" means two or more, unless the direction of the center is otherwise clearly and specifically defined.

[0021] Embodiment 1:

[0022] like Figure 1-2As shown, a transmission shaft assembly positioning device includes a punching machine 1 and a workbench 2, the punching machine 1 is fixedly installed on the top of the workbench 2, a positioning hole is set in the middle position of the workbench 2, and a limit receiving platform 3 corresponding to the positioning hole is set at the bottom end of the workbench 2. A mounting plate 4 is rotatably installed on the punch of the punching machine 1, and a positioning claw 5 and a pressing claw 6 are set on the mounting plate 4. The mounting plate 4 is an eccentric chuck, and the mounting plate 4 includes a fixed plate 41, an eccentric rotating shaft 42, a disc 43 and a servo controller 44. The fixed plate 41 is rotatably installed on the punch of the punching machine 1, and the eccentric rotating shaft 42 is eccentrically installed on the fixed plate 41 through a bearing. The disc 43 is fixedly installed at the bottom end of the eccentric rotating shaft 42, and the servo controller 44 is used to control the axial rotation of the eccentric rotating shaft 42. The positioning claw 5 and the pressing claw 6 The axial direction is evenly arranged at the bottom of the disc 43. The positioning claws and pressing claws arranged on the eccentric chuck can be moved to the center axis position by the eccentric chuck, avoiding the center of gravity shift during the positioning or pressing process. This arrangement allows the device to automatically complete positioning and pressing, avoiding the effect of the need to move the rotating shaft. The main purpose of the eccentric turntable is to rotate the positioning claws 5 and the pressing claws 6 to the center position of the punch of the punching machine respectively to avoid pressure imbalance. By positioning the bearing and the rotating shaft in this way, a higher coaxiality can be achieved, further reducing the damage to the inner surface of the bearing or the surface of the rotating shaft during the pressing process. Some lubricating oil can also be sprayed appropriately during the installation process, but the lubricating oil is not easy to clean and is easy to adhere to dust, so it is generally not used.

[0023] like Figure 1-2 As shown, the positioning claw 5 includes a telescopic rod 51 and a suction plate 52 arranged at the bottom of the telescopic rod 51. The telescopic rod can prevent the bottom end surface of the positioning claw from touching and interfering with the surface of the workbench during the pressing process of the claw. A positioning fixture 53 is adsorbed on the suction plate 52. The limit receiving platform 3 includes a first ear plate 31, a second ear plate 32 and a positioning plate 33. The first ear plate 31 and the second ear plate 32 are respectively arranged on both sides of the positioning plate 33. The first ear plate 31 and the second ear plate 32 are both fixedly connected to the workbench. The first ear plate 31 and the second ear plate 32 are both bolted and fixed to the positioning plate 33. A plurality of pin holes are arranged on the top of the positioning plate 33. An avoidance hole is arranged on the top of the positioning plate 33. A magnetic buckle is arranged in the pin hole. A positioning fixture 53 corresponding to the positioning hole is arranged on the top of the workbench 2. An avoidance groove is arranged on the positioning fixture 53. A supporting fixture is arranged on the positioning plate 33. A plurality of positioning pins are arranged at the bottom of the supporting fixture. The positioning pins are inserted into the pin holes.

[0024] Specific implementation process: The positioning claw includes a telescopic rod and a suction plate arranged at the bottom of the telescopic rod, and the suction plate is adsorbed with a positioning fixture. This way, the positioning fixture can be replaced, making the device suitable for the installation of rotating shafts of different diameters.

[0025] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A transmission shaft assembly and positioning device, comprising a punching machine (1) and a workbench (2), characterized in that: The punching machine (1) is fixedly mounted on the top of the workbench (2); a positioning hole is provided in the middle of the workbench (2); a limit receiving platform (3) corresponding to the positioning hole is provided at the bottom of the workbench (2); a mounting plate (4) is rotatably mounted on the punch of the punching machine (1); a positioning clamping claw (5) and a pressing clamping claw (6) are provided on the mounting plate (4); and the mounting plate (4) is an eccentric chuck.

2. A transmission shaft assembly and positioning device according to claim 1, characterized in that: The mounting plate (4) comprises a fixed plate (41), an eccentric rotating shaft (42), a disc (43) and a servo controller (44); the fixed plate (41) is rotatably mounted on the punch of the punching machine (1); the eccentric rotating shaft (42) is eccentrically mounted on the fixed plate (41) via a bearing; the disc (43) is fixedly mounted on the bottom end of the eccentric rotating shaft (42); the servo controller (44) is used to control the axial rotation of the eccentric rotating shaft (42); the positioning claw (5) and the pressing claw (6) are axially and evenly arranged at the bottom of the disc (43).

3. The transmission shaft assembly and positioning device according to claim 1, characterized in that: The positioning claw (5) comprises a telescopic rod (51) and a suction plate (52) arranged at the bottom of the telescopic rod (51), and a positioning fixture (53) is suctioned onto the suction plate (52).

4. The transmission shaft assembly and positioning device according to claim 1, characterized in that: The position limiting receiving platform (3) comprises a first ear plate (31), a second ear plate (32) and a positioning plate (33); the first ear plate (31) and the second ear plate (32) are respectively arranged on both sides of the positioning plate (33); the first ear plate (31) and the second ear plate (32) are both fixedly connected to the workbench (2); the first ear plate (31) and the second ear plate (32) are both bolted and fixed to the positioning plate (33); a plurality of pin holes are arranged on the top of the positioning plate (33); an avoidance hole is arranged on the top of the positioning plate (33); and a magnetic buckle is arranged in the pin hole.

5. The transmission shaft assembly and positioning device according to claim 1, characterized in that: A positioning fixture (53) corresponding to the positioning hole is arranged on the top of the workbench (2), and an avoidance groove is arranged on the positioning fixture (53).

6. A transmission shaft assembly and positioning device according to claim 4, characterized in that: A supporting fixture is arranged on the positioning plate (33), and a plurality of positioning pins are arranged at the bottom of the supporting fixture, and the positioning pins are inserted into the pin holes.

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