Bearing press-in machine

Abstract

The utility model relates to the technical field of motor rotor assembly, in particular to a bearing press-in machine which comprises a rack, a press-in mechanism and a main positioning seat. The rack has a press-in direction, and a press-in mechanism and a main positioning seat are sequentially arranged on the rack along the press-in direction; the press-in mechanism comprises a reciprocating device and a press-in jig, the reciprocating device is provided with a movable end moving in the press-in direction, and the press-in jig is arranged at the movable end of the reciprocating device; the main positioning seat comprises a static positioning seat, a dynamic positioning seat and an elastic guide piece; the static positioning seat and the dynamic positioning seat are connected through an elastic guide piece, and the elastic guide piece is used for guiding the dynamic positioning seat to be close to the static positioning seat in the press-in direction. According to the utility model, the bearing and the rotor can be quickly and effectively assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor assembly, in particular to a bearing pressing machine. Background Art

[0002] The motor rotor is the rotating part of the motor and the moving part of the electromagnetic system in the motor. It mainly generates rotational power through the interaction between the winding and the magnetic field. At present, the assembly of the rotor shaft and the bearing requires the use of a professional press to assemble the bearing and the rotor shaft together. However, professional presses are not only expensive, but also complicated to operate, making the production cost of the motor high. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a drawing and pressing machine with simple structure and convenient operation so as to reduce the cost of motor assembly.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a bearing pressing machine, comprising a frame, a pressing mechanism and a total positioning seat; the frame has a pressing direction, and the pressing mechanism and the total positioning seat are sequentially arranged on the frame along the pressing direction;

[0005] The pressing mechanism comprises a reciprocating device and a pressing fixture, wherein the reciprocating device has a movable end that moves along the pressing direction, and the pressing fixture is arranged on the movable end of the reciprocating device;

[0006] The total positioning seat includes a static positioning seat, a dynamic positioning seat and an elastic guide; the static positioning seat and the dynamic positioning seat are connected by an elastic guide, and the elastic guide is used to guide the dynamic positioning seat to approach the static positioning seat along the pressing direction.

[0007] Furthermore, the reciprocating device includes an air cylinder and an electric cylinder; a pressing fixture is provided on the piston rod of the air cylinder, and the piston rod of the electric cylinder is connected to the cylinder body of the air cylinder.

[0008] Furthermore, a pressure sensor is provided between the piston rod of the electric cylinder and the cylinder body of the air cylinder.

[0009] Furthermore, the reciprocating device also includes a first guide rod, which is slidably arranged on the frame, and the sliding direction of the first guide rod is parallel to the pressing direction, and the first guide rod is connected to the piston rod of the electric cylinder.

[0010] Furthermore, the elastic guide member includes a second guide rod and a compression spring; the dynamic positioning seat is slidably arranged on the second guide rod, the compression spring is arranged between the static positioning seat and the dynamic positioning seat, and the compression spring is sleeved on the rod body of the second guide rod.

[0011] The beneficial effect of the utility model is that: a press-in mechanism and a total positioning seat are added to the frame, the static positioning seat is used to position the bearing, and the dynamic positioning seat is used to position the rotor, so that the axis of the bearing and the axis of the rotor can coincide, and then the reciprocating device is used to drive the press-in jig to push the rotor, thereby driving the dynamic positioning seat close to the static positioning seat, so that the axis of the rotor can be pressed into the inner ring of the bearing. In addition, during the press-in process, the elastic guide can not only ensure the press-in direction of the rotor, but also the elastic force of the elastic guide can reduce the impact of the rotor shaft on the bearing, thereby ensuring the assembly quality of the bearing and the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a bearing pressing machine of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of a bearing pressing machine of the utility model;

[0014] Figure 3 for Figure 2 An enlarged view of part A of a bearing press machine;

[0015] Description of labels:

[0016] 1. Frame;

[0017] 2. Pressing mechanism; 21. Reciprocating device; 211. Cylinder; 212. Electric cylinder; 213. First guide rod;

[0018] 22. Press into the jig;

[0019] 3. Total positioning seat; 31. Static positioning seat; 32. Dynamic positioning seat;

[0020] 33. elastic guide member; 331. second guide rod; 332. compression spring;

[0021] 4. Pressure sensor; 5. Bearing; 6. Rotor. DETAILED DESCRIPTION

[0022] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0023] The motor rotor is the rotating part of the motor and the moving part of the electromagnetic system in the motor. It mainly generates rotational power through the interaction between the winding and the magnetic field. At present, the assembly of the rotor shaft and the bearing requires the use of a professional press to assemble the bearing and the rotor shaft together. However, professional presses are not only expensive, but also complicated to operate, making the production cost of the motor high.

[0024] Based on this, the present application provides a bearing pressing machine that can solve the problem of complicated assembly process of rotor and bearing.

[0025] Please refer to Figures 1 to 3 As shown, the utility model is a bearing pressing machine, comprising a frame 1, a pressing mechanism 2 and a general positioning seat 3; the frame 1 has a pressing direction, and the pressing mechanism 2 and the general positioning seat 3 are sequentially arranged on the frame 1 along the pressing direction;

[0026] The pressing mechanism 2 includes a reciprocating device 21 and a pressing fixture 22, wherein the reciprocating device 21 has a movable end that moves along the pressing direction, and the pressing fixture 22 is arranged on the movable end of the reciprocating device 21;

[0027] The total positioning seat 3 includes a static positioning seat 31, a dynamic positioning seat 32 and an elastic guide 33; the static positioning seat 31 and the dynamic positioning seat 32 are connected by the elastic guide 33, and the elastic guide 33 is used to guide the dynamic positioning seat 32 to approach the static positioning seat 31 along the pressing direction.

[0028] Working principle: The static positioning seat 31 positions the bearing 5, and the dynamic positioning seat 32 positions the rotor 6, so that the axis of the bearing 5 coincides with the axis of the rotor 6. Then, the reciprocating device 21 drives the pressing fixture 22 to push the rotor 6, thereby driving the dynamic positioning seat 32 close to the static positioning seat 31, so that the axis of the rotor 6 can be pressed into the inner ring of the bearing 5. In addition, during the pressing process, the elastic guide 33 can not only ensure the pressing direction of the rotor 6, but also the elastic force of the elastic guide 33 can reduce the impact of the rotating shaft of the rotor 6 on the bearing 5, thereby ensuring the assembly quality of the bearing 5 and the rotor 6.

[0029] Please refer to Figure 1 and Figure 2 As shown, further, the reciprocating device 21 includes a pneumatic cylinder 211 and an electric cylinder 212 ; a pressing fixture 22 is provided on the piston rod of the pneumatic cylinder 211 , and the piston rod of the electric cylinder 212 is connected to the cylinder body of the pneumatic cylinder 211 .

[0030] From the above description, it can be seen that during the operation of the reciprocating device 21, the electric cylinder 212 can drive the air cylinder 211 and the pressing fixture 22 to approach and move away from the main positioning seat 3, so as to facilitate the placement of the workpiece; the air cylinder 211 drives the pressing fixture 22 to perform the pressing operation.

[0031] Please refer to Figure 1 and Figure 2 As shown, further, a pressure sensor 4 is provided between the piston rod of the electric cylinder 212 and the cylinder body of the air cylinder 211 .

[0032] It can be seen from the above description that the pressure sensor 4 can detect the pressure applied by the pressing mechanism 2 to the rotor 6 in real time to avoid overpressure.

[0033] Please refer to Figure 1 and Figure 2 As shown, further, the reciprocating device 21 also includes a first guide rod 213, which is slidably arranged on the frame 1, and the sliding direction of the first guide rod 213 is parallel to the pressing direction, and the first guide rod 213 is connected to the piston rod of the electric cylinder 212.

[0034] It can be known from the above description that the first guide rod 213 can ensure the moving direction of the electric cylinder 212 driven by the reciprocating device 21 .

[0035] Please refer to Figure 3 As shown, further, the elastic guide 33 includes a second guide rod 331 and a compression spring 332; the dynamic positioning seat 32 is slidably arranged on the second guide rod 331, the compression spring 332 is arranged between the static positioning seat 31 and the dynamic positioning seat 32, and the compression spring 332 is sleeved on the rod body of the second guide rod 331.

[0036] From the above description, it can be seen that when the dynamic positioning seat 32 approaches the static positioning seat 31, the second guide rod 331 is used to guide the moving direction of the dynamic positioning seat 32, thereby ensuring that the rotating shaft of the rotor 6 can be pressed into the inner ring of the bearing 5. At the same time, during the pressing process, the compression spring 332 can reduce the impact of the rotating shaft of the rotor 6 on the bearing 5, thereby ensuring the assembly quality of the bearing 5 and the rotor 6.

[0037] Embodiment 1

[0038] A bearing press machine, please refer to Figures 1 to 3As shown, it includes a frame 1, a pressing mechanism 2 and a total positioning seat 3; the frame 1 has a pressing direction, and the pressing mechanism 2 and the total positioning seat 3 are sequentially arranged on the frame 1 along the pressing direction; the pressing mechanism 2 includes a reciprocating device 21 and a pressing fixture 22, the reciprocating device 21 has a movable end that moves along the pressing direction, and the pressing fixture 22 is arranged on the movable end of the reciprocating device 21; the total positioning seat 3 includes a static positioning seat 31, a dynamic positioning seat 32 and an elastic guide 33; the static positioning seat 31 and the dynamic positioning seat 32 are connected by an elastic guide 33, and the elastic guide 33 is used to guide the dynamic positioning seat 32 to approach the static positioning seat 31 along the pressing direction. The reciprocating device 21 includes a cylinder 211, an electric cylinder 212 and a first guide rod 213; the piston rod of the cylinder 211 is provided with a pressing fixture 22, and the piston rod of the electric cylinder 212 is connected to the cylinder body of the cylinder 211. A pressure sensor 4 is provided between the piston rod of the electric cylinder 212 and the cylinder body of the air cylinder 211. The first guide rod 213 is slidably provided on the frame 1, and the sliding direction of the first guide rod 213 is parallel to the pressing direction, and the first guide rod 213 is connected to the piston rod of the electric cylinder 212. The elastic guide 33 includes a second guide rod 331 and a compression spring 332; the dynamic positioning seat 32 is slidably provided on the second guide rod 331, the compression spring 332 is provided between the static positioning seat 31 and the dynamic positioning seat 32, and the compression spring 332 is sleeved on the rod body of the second guide rod 331.

[0039] Working principle: The static positioning seat 31 is used to position the bearing 5, and the dynamic positioning seat 32 is used to position the rotor 6, so that the axis of the bearing 5 coincides with the axis of the rotor 6. Then, the electric cylinder 212 is used to drive the cylinder 211 and the pressing fixture 22 to approach and move away from the total positioning seat 3. Then, the cylinder 211 drives the pressing fixture 22 to push the rotor 6, thereby driving the dynamic positioning seat 32 to approach the static positioning seat 31, so that the axis of the rotor 6 can be pressed into the inner ring of the bearing 5.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A bearing pressing machine, characterized in that: It comprises a frame, a pressing mechanism and a total positioning seat; the frame has a pressing direction, and the pressing mechanism and the total positioning seat are sequentially arranged on the frame along the pressing direction; The pressing mechanism comprises a reciprocating device and a pressing fixture, wherein the reciprocating device has a movable end that moves along the pressing direction, and the pressing fixture is arranged on the movable end of the reciprocating device; The total positioning seat includes a static positioning seat, a dynamic positioning seat and an elastic guide; the static positioning seat and the dynamic positioning seat are connected by an elastic guide, and the elastic guide is used to guide the dynamic positioning seat to approach the static positioning seat along the pressing direction.

2. The bearing press machine according to claim 1, characterized in that: The reciprocating device comprises an air cylinder and an electric cylinder; a pressing fixture is arranged on the piston rod of the air cylinder, and the piston rod of the electric cylinder is connected to the cylinder body of the air cylinder.

3. The bearing pressing machine according to claim 2, characterized in that: A pressure sensor is arranged between the piston rod of the electric cylinder and the cylinder body of the air cylinder.

4. The bearing press machine according to claim 2 or 3, characterized in that: The reciprocating device further comprises a first guide rod, which is slidably arranged on the frame, and a sliding direction of the first guide rod is parallel to the pressing direction, and the first guide rod is connected to a piston rod of the electric cylinder.

5. The bearing pressing machine according to claim 1, characterized in that: The elastic guide member includes a second guide rod and a compression spring; the dynamic positioning seat is slidably arranged on the second guide rod, the compression spring is arranged between the static positioning seat and the dynamic positioning seat, and the compression spring is sleeved on the rod body of the second guide rod.

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