An assembly mechanism for a rotating shaft or rotor ensuring concentricity

Abstract

The utility model discloses a kind of assembly mechanisms of ensuring concentricity of rotating shaft or rotor, it includes: carrier, which is provided with bearing position on the carrier;Clamping positioning mechanism, which is located outside the carrier;Jacking mechanism, which includes first lifting module and lower ejector pin installed on first lifting module, and lower ejector pin is located just below the shaft hole of product casing;Top pressure mechanism, which includes second lifting module and pressure sensor installed on the lower end of second lifting rod of second lifting module and pressure plate arranged at the lower end of pressure sensor and pressure pin arranged at the lower end of pressure plate, and pressure pin is coaxially arranged with second lifting rod and lower ejector pin;Support module, which is located between jacking mechanism and top pressure mechanism.The utility model can realize the assembly of rotating shaft or rotor, and can ensure concentricity, guarantee the stability and quality of assembly structure, and simultaneously, the pressure of pressure pin under the lower end of pressure plate is detected by pressure sensor in real time, that is, the pressure and stroke record of rotating shaft or rotor pressing process can be detected.

Description

Technical fields:

[0001] This utility model relates to the field of mechanical automation product technology, and specifically refers to an assembly mechanism for ensuring concentricity of a rotating shaft or rotor. Background technology:

[0002] Chinese Utility Model Patent Application No. 202420762593.4 discloses a constant velocity drive shaft assembly device, which includes a ball ring conveying mechanism, a housing conveying mechanism, a pressing mechanism, and a feeding mechanism. The pressing mechanism includes a clamping part that can detachably clamp the constant velocity drive shaft body and a pressing drive part that controls the clamping part to perform pressing work. A pin for installing ball rings is provided on the constant velocity drive shaft body. The feeding mechanism includes a feeding track, a housing conveying assembly, and a ball ring conveying assembly. Both the ball ring conveying assembly and the housing conveying assembly are movably arranged on the feeding track. The ball ring conveying assembly includes a pre-assembly module. The ball ring is placed on the pre-assembly module. The ball ring conveying assembly delivers the ball ring to the pressing area and installs the ball ring on the pin through the pre-assembly module. Subsequently, the ball ring conveying assembly resets, the housing conveying assembly delivers the housing to the pressing area, and the pressing drive part controls the clamping part to press down, so that the shaft body on the clamping part and the housing are assembled. This greatly reduces the time and error of manual operation, thereby improving production efficiency.

[0003] The aforementioned constant velocity drive shaft assembly equipment uses a press-fit drive unit to control the clamping unit to press down, so that the shaft on the clamping unit and the housing are assembled. It uses a press-fit method to assemble the shaft and the housing, but it does not detect pressure and stroke, and cannot ensure the concentricity of the shaft and housing assembly, resulting in a low assembly yield and a relatively increased manpower required.

[0004] In view of the above, the inventors propose the following technical solution. Utility Model Content:

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an assembly mechanism that ensures the concentricity of the shaft or rotor.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An assembly mechanism for ensuring concentricity of the shaft or rotor includes: a carrier, which has a bearing position for supporting the product housing; a clamping and positioning mechanism, which is disposed on the outside of the carrier and used to clamp and position the product housing; a lifting mechanism, which includes a first lifting module and a lower ejector pin mounted on the first lifting module for pressing the lower end of the shaft or rotor, the lower ejector pin being located directly below the shaft hole of the product housing; a pressing mechanism, which includes a second lifting module, a pressure sensor mounted on the lower end of a second lifting rod of the second lifting module, a pressure plate disposed at the lower end of the pressure sensor, and a pressing pin disposed at the lower end of the pressure plate, the pressing pin being coaxially arranged with the second lifting rod and the lower ejector pin; and a support module for supporting the shaft or rotor, which is disposed between the lifting mechanism and the pressing mechanism.

[0007] Furthermore, in the above technical solution, the clamping and positioning mechanism, the supporting module and the pressing mechanism are all mounted on the frame, and the lifting mechanism is mounted at the bottom of the frame.

[0008] Furthermore, in the above technical solution, the first lifting module is a first servo electric cylinder, which is fixed to the bottom of the frame, and the first lifting rod of the first servo electric cylinder extends from bottom to top onto the frame, and the lower ejector pin is fixedly installed on the upper end of the first lifting rod and is coaxially arranged.

[0009] Furthermore, in the above technical solution, the top pressing mechanism also includes a lifting plate, which is mounted on the frame in a way that allows it to slide up and down via a first slide rail pair. The upper end of the lifting plate is mounted on the lower end of the pressure sensor, and the lower end of the pressure plate is fixed to the lower end of the lifting plate.

[0010] Furthermore, in the above technical solution, a number of limiting pins are also provided on the rear side of the lower end of the pressure plate; a wiring groove is also provided on the outer side of the pressure plate; and the second lifting module is a second servo electric cylinder.

[0011] Furthermore, in the above technical solution, the support module includes a bracket horizontally mounted on the frame via a second slide rail pair and a first linear module mounted on the rear end of the bracket for driving the bracket to move horizontally. The bracket has a support position for supporting a rotating shaft or rotor.

[0012] Furthermore, in the above technical solution, the clamping and positioning mechanism includes a first bracket, a first cylinder mounted on the first bracket, and a first clamping block mounted on the first cylinder and driven by the first cylinder to move horizontally, a second bracket, a second cylinder mounted on the second bracket, and a second clamping block mounted on the second cylinder and driven by the second cylinder to move horizontally. The first clamping block and the second clamping block are distributed on both sides of the carrier and are used to clamp and position the product housing.

[0013] Furthermore, in the above technical solution, the clamping surfaces of the first clamping block and / or the second clamping block are provided with positioning pins.

[0014] Furthermore, the above technical solution also includes a transmission chain device that passes horizontally through the frame, and the carrier is mounted on the transmission chain device and driven by the transmission chain device to move.

[0015] Furthermore, in the above technical solution, a first bearing is also sleeved at the lower end of the rotating shaft or rotor, and a first mounting groove adapted to the first bearing is also provided on the upper side of the shaft hole of the product housing.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention uses a carrier in conjunction with a clamping and positioning mechanism to position the product housing, and a support module to support the rotating shaft or rotor. Then, the lower ejector pin of the lifting mechanism and the pressure pin of the pressing mechanism cooperate to clamp the rotating shaft or rotor, and then press the lower end of the rotating shaft or rotor into the shaft hole of the product housing to realize the assembly of the rotating shaft or rotor. It can ensure concentricity and guarantee the stability and quality of the assembly structure. At the same time, the pressure sensor detects the pressure of the pressure pin at the lower end of the pressure plate in real time, which can detect the pressure and stroke records of the rotating shaft or rotor pressing process, and the pressure curve can be displayed by a computer to ensure the quality of assembly. Attached image description:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the present invention with the product housing and rotating shaft or rotor assembled.

[0019] Figure 3 This is a cross-sectional view of the product housing and rotating shaft or rotor assembled in this utility model.

[0020] Figure 4 This is a perspective view of the present invention before the transmission chain device is assembled;

[0021] Figure 5 This is a perspective view of the present invention before the transmission chain device is assembled.

[0022] Figure 6 This is a perspective view of the lifting mechanism in this utility model;

[0023] Figure 7 It is a 3D view of the product housing and shaft or rotor;

[0024] Figure 8 It is a sectional view of the product housing and shaft or rotor. Detailed implementation method:

[0025] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0026] See Figure 1-8 As shown, this is an assembly mechanism for ensuring concentricity of a rotating shaft or rotor, characterized in that it includes: a carrier 1, a clamping and positioning mechanism 2, a lifting mechanism 3, a pressing mechanism 4, and a supporting module 5.

[0027] The carrier 1 is provided with a bearing position 11 for bearing the product housing 7; the clamping and positioning mechanism 2 is located on the outside of the carrier 1 and is used to clamp and position the product housing 7; the lifting mechanism 3 includes a first lifting module 31 and a lower ejector pin 32 installed on the first lifting module 31 and used to press the lower end of the rotating shaft or rotor 8, the lower ejector pin 32 being located directly below the shaft hole 71 of the product housing 7; the pressing mechanism 4 includes a second lifting module 41 and a pressure sensor 43 installed on the lower end of the second lifting rod 42 of the second lifting module 41, a pressure plate 44 located on the lower end of the pressure sensor 43, and a pressing pin 45 located on the lower end of the pressure plate 44, the pressing pin 45 being coaxially arranged with the second lifting rod 42 and the lower ejector pin 32; the support module 5 is located between the lifting mechanism 3 and the pressing mechanism 4 and is used to support the rotating shaft or rotor 8. In practical use, the product housing 7 is placed on the bearing position 11 of the carrier 1, and the clamping and positioning mechanism 2 clamps and positions the product housing 7, so that the product housing 7 is stably positioned on the carrier 1; at the same time, the rotating shaft or rotor 8 is placed on the supporting module 5, and the supporting module 5 pushes the rotating shaft or rotor 8 to below the pressure pin 45 at the lower end of the pressure plate 44 in the pressing mechanism 4, above the product housing 7; subsequently, the first lifting module 31 in the lifting mechanism 3 drives the lower ejector pin 32 to move upward. 2. The shaft passes through the shaft hole 71 of the product housing 7 from bottom to top and abuts against the lower end of the rotating shaft or rotor 8. At the same time, the second lifting module 41 of the top pressing mechanism 4 drives the pressure plate 44 to press down, so that the pressure needle 45 at the lower end of the pressure plate 44 abuts against the upper end of the rotating shaft or rotor 8. At this time, the rotating shaft or rotor 8, the pressure needle 45, and the lower ejector pin 32 are on the same axis. The pressure sensor 43 detects the downward pressure of the pressure needle 45 at the lower end of the pressure plate 44 in real time, so that the second lifting module 41 controls the downward stroke of the pressure needle 45. Then, the second lifting module 41... The lowering module 41 drives the pressure plate 44 to rise a certain distance, while the first lifting module 31 drives the lower ejector pin 32 to rise the same distance simultaneously, causing the rotating shaft or rotor 8 to leave the supporting module 5, and the supporting module 5 to retract to its initial position, so that there is enough space for the rotating shaft or rotor 8 to move downward. Finally, the second lifting module 41 drives the pressure plate 44 to fall a certain distance, while the first lifting module 31 drives the lower ejector pin 32 to fall the same distance simultaneously, and the lower ejector pin 32 moves downward away from the shaft hole of the product housing 7. 71, and the lower ejector pin 32 cooperates with the pressure pin 45 at the lower end of the pressure plate 44 to clamp the rotating shaft or rotor 8, and press the lower end of the rotating shaft or rotor 8 into the shaft hole 71 of the product housing 7 to realize the assembly of the rotating shaft or rotor 8, and can ensure concentricity, guarantee the stability and quality of the assembly structure. At the same time, the pressure sensor 43 detects the downward pressure of the pressure pin 45 at the lower end of the pressure plate 44 in real time, which can detect the pressure and stroke record of the rotating shaft or rotor 8 during the pressing process, and the pressure curve can be displayed by the computer to ensure the quality of the assembly.

[0028] In this embodiment, a first bearing 81 is also sleeved on the lower end of the rotating shaft or rotor 8, and a first mounting groove 72 adapted to the first bearing 81 is also provided on the upper side of the shaft hole 71 of the product housing 7. When the lower ejector pin 32 and the lower pressure pin 45 of the pressure plate 44 cooperate to clamp the rotating shaft or rotor 8 and press the lower end of the rotating shaft or rotor 8 into the shaft hole 71 of the product housing 7, the first bearing 81 can be pressed into the first mounting groove 72 at the same time.

[0029] Furthermore, in some other embodiments, a second bearing 82 is installed on the upper end of the shaft or rotor 8, and the second bearing 82 is embedded in the second mounting groove 831 of the rear cover 83. A positioning groove 832 concentric with the shaft or rotor 8 is provided at the center of the upper end of the rear cover 83. The lower end of the pressure plate 44 abuts against the rear cover 83, and the pressure pin 45 at the lower end of the pressure plate 44 is embedded in the positioning groove 832, so as to stably press the rear cover 83. When the lower end of the shaft or rotor 8 is pressed into the shaft hole 71 of the product housing 7, the rear cover 83 abuts against the upper end of the product housing 7, and the through hole 833 on the rear cover 83 corresponds to the screw hole 73 at the upper end of the product housing 7, so that screws can be directly tightened later, and the assembly efficiency is higher. The pressure plate 44 is provided with several limiting pins 441 at the lower rear side. These limiting pins 441 can limit the rear cover 83, ensuring that the pressure plate 44 can stably position the rear cover 83, which is convenient to ensure the concentricity and quality of the subsequent assembly of the rotating shaft or rotor 8 with the product housing 7.

[0030] The clamping and positioning mechanism 2, the supporting module 5, and the pressing mechanism 4 are all mounted on the frame 6, and the lifting mechanism 3 is located at the bottom of the frame 6. This invention also includes a transmission chain device 9, which horizontally passes through the frame 6. The carrier 1 is mounted on the transmission chain device 9 and driven by it to move. The transmission chain device 9 continuously transports the carrier carrying the product housing 7 between the lifting mechanism 3 and the pressing mechanism 4, whereby the product housing 7 is clamped and positioned by the clamping and positioning mechanism 2. The lifting mechanism 3 and the pressing mechanism 4 work together to assemble the rotating shaft or rotor 8 with the product housing 7, ensuring concentricity and significantly improving work efficiency and productivity.

[0031] The clamping and positioning mechanism 2 includes a first bracket 21, a first cylinder 22 mounted on the first bracket 21, a first clamping block 23 mounted on the first cylinder 22 and driven by the first cylinder 22 to move horizontally, a second bracket 24, a second cylinder 25 mounted on the second bracket 24, and a second clamping block 26 mounted on the second cylinder 25 and driven by the second cylinder 25 to move horizontally. The first clamping block 23 and the second clamping block 26 are distributed on both sides of the carrier 1 and are used to clamp and position the product housing 7. The entire clamping and positioning mechanism 2 has a simple structure and can stably clamp and position the product housing 7. In addition, the clamping surfaces of the first clamping block 23 and / or the second clamping block 26 are provided with positioning pins 20. The positioning pins 20 are used to limit or position the product housing 7, so as to better clamp and position the product housing 7, prevent the product housing 7 from rotating or shifting, and ensure the concentricity and quality of the subsequent assembly of the shaft or rotor 8 with the product housing 7.

[0032] The first lifting module 31 is a first servo electric cylinder, and the second lifting module 41 is a second servo electric cylinder, which can achieve stable and high-precision movement to ensure work quality.

[0033] The first servo electric cylinder is fixed to the bottom of the frame 6, and the first lifting rod 311 of the first servo electric cylinder extends from bottom to top onto the frame 6. The lower ejector pin 32 is fixedly installed on the upper end of the first lifting rod 311 and is coaxially arranged.

[0034] The top pressing mechanism 4 also includes a lifting plate 46, which is mounted on the frame 6 in a way that allows it to slide up and down via a first slide rail pair 461. The upper end of the lifting plate 46 is mounted on the lower end of the pressure sensor 43, and the lower end of the pressure plate 44 is fixed to the lower end of the lifting plate 46, thereby enabling the pressure plate 44 to move up and down stably and with high precision.

[0035] The outer side of the pressure plate 44 is also provided with a wiring groove 441, which facilitates the upward extension of the wires on the rotor 8 and holds them in place, ensuring that there is no need to consider the wires after the rotor 8 is assembled.

[0036] The support module 5 includes a bracket 52 horizontally mounted on the frame 6 via a second slide rail pair 51, and a first linear module 53 mounted at the rear end of the bracket 52 for driving the bracket 52 to move horizontally. The bracket 52 has a support position 521 for supporting the rotating shaft or rotor 8, which can stably support the rotating shaft or rotor 8, and the entire support module 5 has an extremely simple structure.

[0037] In summary, this utility model uses a carrier 1 in conjunction with a clamping and positioning mechanism 2 to position the product housing 7, and a support module 5 to support the rotating shaft or rotor 8. Subsequently, the lower ejector pin 32 of the lifting mechanism 3 and the pressure pin 45 of the pressing mechanism 4 cooperate to clamp the rotating shaft or rotor 8, and then press the lower end of the rotating shaft or rotor 8 into the shaft hole 71 of the product housing 7 to achieve the assembly of the rotating shaft or rotor 8. This ensures concentricity and guarantees the stability and quality of the assembly structure. At the same time, the pressure sensor 43 detects the downward pressure of the pressure pin 45 at the lower end of the pressure plate 44 in real time, which can detect the pressure and stroke records during the pressing process of the rotating shaft or rotor 8, and the pressure curve can be displayed by a computer to ensure the quality of the assembly.

[0038] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. An assembly mechanism for ensuring concentricity of a rotating shaft or rotor, characterized in that: include: The carrier (1) has a bearing position (11) for carrying the product housing (7). A clamping and positioning mechanism (2) is located on the outside of the carrier (1) and is used to clamp and position the product housing (7). The lifting mechanism (3) includes a first lifting module (31) and a lower ejector pin (32) mounted on the first lifting module (31) for pressing the lower end of the rotating shaft or rotor (8), the lower ejector pin (32) being located directly below the shaft hole (71) of the product housing (7); The top pressing mechanism (4) includes a second lifting module (41), a pressure sensor (43) installed at the lower end of the second lifting rod (42) of the second lifting module (41), a pressure plate (44) disposed at the lower end of the pressure sensor (43), and a pressure needle (45) disposed at the lower end of the pressure plate (44). The pressure needle (45) is coaxially arranged with the second lifting rod (42) and the lower top pin (32). A support module (5) for supporting the shaft or rotor (8) is provided between the lifting mechanism (3) and the pressing mechanism (4).

2. The assembly mechanism for ensuring concentricity of a rotating shaft or rotor according to claim 1, characterized in that: The clamping and positioning mechanism (2), the supporting module (5) and the pressing mechanism (4) are all mounted on the frame (6), and the lifting mechanism (3) is mounted at the bottom of the frame (6).

3. The assembly mechanism for ensuring concentricity of a rotating shaft or rotor according to claim 2, characterized in that: The first lifting module (31) is a first servo electric cylinder, which is fixed to the bottom of the frame (6), and the first lifting rod (311) of the first servo electric cylinder extends from bottom to top onto the frame (6). The lower ejector pin (32) is fixedly installed on the upper end of the first lifting rod (311) and is coaxially arranged.

4. The assembly mechanism for ensuring concentricity of a rotating shaft or rotor according to claim 2, characterized in that: The top pressing mechanism (4) also includes a lifting plate (46), which is mounted on the frame (6) in a way that can slide up and down via a first slide rail pair (461). The upper end of the lifting plate (46) is mounted on the lower end of the pressure sensor (43), and the lower end of the pressure plate (44) is fixed to the lower end of the lifting plate (46).

5. An assembly mechanism for ensuring concentricity of a shaft or rotor according to claim 4, characterized in that: The pressure plate (44) is also provided with several limiting pins at the lower rear end; the pressure plate (44) is also provided with a wiring groove (441) on the outer side; the second lifting module (41) is a second servo electric cylinder.

6. An assembly mechanism for ensuring concentricity of a shaft or rotor according to any one of claims 1-5, characterized in that: The support module (5) includes a bracket (52) horizontally mounted on the frame (6) via a second slide rail pair (51) and a first linear module (53) mounted at the rear end of the bracket (52) for driving the bracket (52) to move horizontally. The bracket (52) has a support position (521) for supporting a shaft or rotor (8).

7. An assembly mechanism for ensuring concentricity of a shaft or rotor according to claim 6, characterized in that: The clamping and positioning mechanism (2) includes a first bracket (21), a first cylinder (22) mounted on the first bracket (21), a first clamping block (23) mounted on the first cylinder (22) and driven by the first cylinder (22) to move horizontally, a second bracket (24), a second cylinder (25) mounted on the second bracket (24), and a second clamping block (26) mounted on the second cylinder (25) and driven by the second cylinder (25) to move horizontally. The first clamping block (23) and the second clamping block (26) are distributed on both sides of the carrier (1) and are used to clamp and position the product housing (7).

8. An assembly mechanism for ensuring concentricity of a shaft or rotor according to claim 7, characterized in that: The clamping surfaces of the first clamping block (23) and / or the second clamping block (26) are provided with positioning pins (20).

9. An assembly mechanism for ensuring concentricity of a shaft or rotor according to claim 6, characterized in that: It also includes a transmission chain device (9) that passes horizontally through the frame (6), and the carrier (1) is mounted on the transmission chain device (9) and driven by the transmission chain device (9) to move.

10. An assembly mechanism for ensuring concentricity of a shaft or rotor according to claim 6, characterized in that: The lower end of the shaft or rotor (8) is also fitted with a first bearing (81), and the upper side of the shaft hole (71) of the product housing (7) is also provided with a first mounting groove (72) that is adapted to the first bearing (81).

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