A self-calibration shaft-entry tooling device for brushless DC motors

Abstract

The present invention provides a self-calibration shaft insertion tooling device for a brushless DC motor, which relates to the technical field of motor shaft insertion tooling, and includes: a workbench; a support leg is welded at the bottom of the workbench, a reinforcement rod is inserted between the support legs, an infrared positioning piece is set up on the top surface of the workbench, a slide groove is provided on the top surface of the workbench, a rack assembly is installed inside the slide groove, an adjustment rack is fixedly connected to the top surface of the workbench and the top surface of the slide groove in the left and right directions, a mounting seat is fixedly connected to the top surface of the workbench, and a placement rack is installed on the top surface of the workbench. The pneumatic arm is controlled by a switch to clamp and fix the placement rack, and then the motor shaft is placed, the infrared positioning piece is calibrated and positioned, and then the first pneumatic arm clamping the motor shaft is opened to fix the shaft and align the center. If there is a tilt, an alarm will be issued to reposition it to ensure that the motor shaft enters the center of the shell, thereby improving the working reliability and service life of the motor, and solving the problem of difficulty in self-calibrating the concentricity of the shaft and the shell when inserting the shaft.

Description

Technical Field

[0001] The invention relates to the technical field of motor shaft insertion tooling, and in particular to a self-calibration shaft insertion tooling device for a brushless DC motor. Background Art

[0002] When processing the motor axis, the axis is riveted on the shell of the outer rotor, and the verticality of the axis cannot be guaranteed, or the concentricity of the axis and the shell cannot be guaranteed. This is a troublesome point in installation. It cannot be positioned, resulting in unstable center of the motor axis and shaking. Once tilted, it will cause serious wear and tear during operation, reducing the life of the motor. Moreover, after the placement position of the motor shell is initially positioned by the slider, it is difficult to automatically lock the slider. For the above problems found in the production process, a motor self-calibration shaft entry tooling equipment is proposed, which can solve the problem of difficulty in self-calibration of the concentricity of the axis and the shell when entering the shaft; and solve the problem of difficulty in automatically locking the slider after adjusting the placement position of the motor shell. Summary of the invention

[0003] The disclosed embodiment relates to a self-calibration shaft insertion tooling device for a brushless DC motor, which solves the problem that it is difficult to self-calibrate the concentricity of the shaft center and the housing when inserting the shaft; and solves the problem that the slider is difficult to automatically lock after adjusting the placement position of the motor housing.

[0004] In a first aspect of the present disclosure, a self-calibration shaft-entry tooling equipment for a brushless DC motor is provided, which specifically comprises: a workbench; support legs are welded at the bottom of the workbench, reinforcement rods are inserted between the support legs, an infrared positioning piece is set up on the top surface of the workbench, a slide groove is opened on the top surface of the workbench, a rack assembly is installed inside the slide groove, an adjustment frame is fixedly connected to the top surface of the workbench and the top surfaces of the slide grooves in the left and right directions, a mounting seat is fixedly connected to the top surface of the workbench, and a placement frame is installed on the top surface of the workbench; a slider is installed on the outer wall of the placement frame and the inside of the slide groove; a connecting frame is fixedly connected to the outer end surface of the slider; a longitudinal slide groove is opened inside the adjustment frame; a connecting piece is slidably clamped inside the longitudinal slide groove; a cylinder fixing frame is installed inside the mounting seat.

[0005] In at least some embodiments, a cylinder is installed inside the cylinder fixing frame and the connected air pipe extends to both sides, the end of the air pipe is connected to a second pneumatic arm, the end of the second pneumatic arm is installed with an arc-shaped clamping plate, the arc-shaped clamping plate is clamped on the outside of the placement frame, and the controller of the cylinder is electrically connected to the switch.

[0006] In at least some embodiments, an infrared laser positioning module is disposed on the front bottom surface of the infrared positioning element, and a controller of the infrared positioning element is electrically connected to a switch.

[0007] In at least some embodiments, a telescopic rod is installed on the bottom surface of the connecting frame, a micro motor is installed at the bottom end of the telescopic rod, and a gear is coaxially connected to the drive shaft of the micro motor. When the telescopic rod moves down to the lowest position, the gear is meshed and connected with the first rack. When the telescopic rod is retracted to the highest position, the gear is meshed and connected with the second rack.

[0008] In at least some embodiments, the front and rear ends of the reinforcement rods installed in the front-to-back direction are respectively connected with insertion rods, the insertion rods are inserted into the second insertion holes, and the insertion rods pass through the interior of the reinforcement rods installed in the left-to-right direction.

[0009] In at least some embodiments, the rack assembly includes a first rack and a second rack, and the first rack and the second rack are respectively mounted on the inner walls on both sides of the slide groove on the top surface of the workbench, but the height of the second rack is higher than the first rack.

[0010] In at least some embodiments, a first pneumatic arm is mounted on the inner end of the connecting member, a clamping plate is mounted on the inner end of the first pneumatic arm, the clamping plate has an arc-shaped structure, and an electrically controlled moving module electrically connected through a switch is disposed on the outer end of the connecting member.

[0011] In at least some embodiments, a first socket and a second socket are provided inside the support leg of the workbench, a reinforcement rod is inserted into the first socket, and a switch is installed on the top surface of the workbench.

[0012] The present invention provides a self-calibration shaft-entry tooling device for a brushless DC motor, which has the following beneficial effects: When the present invention is in use, the pneumatic arm is controlled by a switch to clamp and fix the placement rack, and then the motor shaft is placed in, the infrared positioning part is calibrated and positioned, and then the first pneumatic arm for clamping the motor shaft is opened to fix the shaft and align the center. If there is any tilt, an alarm will be sounded and repositioning is required to ensure that the motor shaft is centered in the shell, thereby improving the working reliability and service life of the motor.

[0013] In addition, the rear mounting bracket, which is directly pressed into the motor bottom shell, can withstand radial and axial loads and can be automatically adjusted by the second pneumatic arm under yaw and tilt conditions. After successful calibration, noise reduction and temperature reduction avoid direct friction of the bearing on the metal surface, so that the equipment noise and heat generation are reduced to a minimum.

[0014] In addition, it can also improve the working reliability and service life of the equipment, effectively reduce the noise and heat problems caused by metal friction, and reduce operating wear.

[0015] In addition, when the telescopic rod is controlled to move downward by starting the switch, the micro motor and the gear are driven to move downward, so that the gear is engaged with the first rack, and then the micro motor is started to rotate by the switch, so that the gear can move through the first rack, thereby realizing the movement of the slider. After the telescopic rod is started to retract, the micro motor and the gear are driven to move upward, and the gear is engaged with the second rack, thereby realizing the reverse movement of the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0017] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture: Figure 1 It shows the structural schematic diagram of the workbench and the reinforcement rod after installation of the present application; Figure 2 The schematic diagram of the installation position structure of the infrared positioning element of the present application is shown; Figure 3 The structural schematic diagram of the workbench of the present application is shown; Figure 4 A schematic diagram of the connection structure between the adjustment frame and the connecting member of the present application is shown; Figure 5 A schematic diagram of the unfolded structure of the reinforcement rod of the present application is shown; Figure 6 A partial cross-sectional structural schematic diagram of the workbench of the present application is shown; Figure 7 Shows this application Figure 6 A schematic diagram of the enlarged structure at A in the middle; Figure 8 A structural schematic diagram of the connection between the connecting frame and the slider of the present application is shown.

[0019] Reference numerals list 1. Workbench; 101. First socket; 102. Mounting seat; 103. Placement rack; 1031. Slider; 104. Switch; 105. Second socket; 2. Reinforcement rod; 201. Insertion rod; 3. Infrared positioning parts; 4. Adjustment frame; 401. Longitudinal slide; 5. Connecting piece; 501. First pneumatic arm; 5011. Clamping plate; 6. Cylinder fixing frame; 601. Air pipe; 602. Second pneumatic arm; 7. rack assembly; 71. first rack; 72. second rack; 8. Connecting frame; 801. Telescopic rod; 802. Micro motor; 803. Gear. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to the attached Figure 1 To Attachment Figure 8 : The present invention proposes a self-calibration shaft-entry tooling equipment for a brushless DC motor, comprising: a workbench 1; support legs are welded at the bottom of the workbench 1, and a reinforcing rod 2 is inserted between the support legs; an infrared positioning member 3 is set up on the top surface of the workbench 1; a slide groove is opened on the top surface of the workbench 1, and a rack assembly 7 is installed inside the slide groove; an adjustment frame 4 is fixedly connected to the top surface of the workbench 1 and the top surfaces of the slide grooves in the left and right directions; a mounting seat 102 is fixedly connected to the top surface of the workbench 1, and a placement frame 103 is installed on the top surface of the workbench 1; a slider 1031 is installed on the outer wall of the placement frame 103 and the inside of the slide groove; a connecting frame 8 is fixedly connected to the outer end surface of the slider 1031; a longitudinal slide groove 401 is opened inside the adjustment frame 4; a connecting member 5 is slidably clamped inside the longitudinal slide groove 401; a cylinder fixing frame 6 is installed inside the mounting seat 102.

[0022] In the embodiments of the present disclosure, as shown in the attached Figure 1 As shown, an infrared laser positioning module is provided on the front bottom surface of the infrared positioning member 3, and the controller of the infrared positioning member 3 is electrically connected to the switch 104. When the infrared positioning member 3 is started by the switch 104, the infrared laser positioning module can be started by the controller to emit an infrared laser, thereby accurately positioning the axial position of the placement rack 103.

[0023] In the embodiments of the present disclosure, as shown in the attached Figure 3 As shown, a first socket 101 and a second socket 105 are provided inside the supporting leg of the workbench 1, a reinforcing rod 2 is inserted into the first socket 101, a switch 104 is installed on the top surface of the workbench 1, and the reinforcing rod 2 can be used to reinforce the supporting legs, and the mortise and tenon structure formed by the reinforcing rod 2 and the supporting legs can be used to achieve the effect of shaking without falling apart, thereby ensuring that the workbench 1 can remain stable after long-term use and mechanical vibration.

[0024] In the embodiments of the present disclosure, as shown in the attached Figure 4As shown, a first pneumatic arm 501 is installed at the inner end of the connecting member 5, and a clamping plate 5011 is installed at the inner end of the first pneumatic arm 501. The clamping plate 5011 has an arc-shaped structure, and an electric-controlled moving module electrically connected through a switch 104 is provided at the outer end of the connecting member 5. After the electric-controlled moving module is activated by the switch 104, the connecting member 5 can be mobilized to move up and down, thereby driving the first pneumatic arm 501 to move up and down, and adjusting the height of the motor housing after clamping.

[0025] In the embodiments of the present disclosure, as shown in the attached Figure 3 and attached Figure 5 As shown, the front and rear ends of the reinforcement rod 2 installed in the front-to-back direction are respectively plugged with an insertion rod 201, the insertion rod 201 is plugged into the second insertion hole 105, and the insertion rod 201 passes through the interior of the reinforcement rod 2 installed in the left-to-right direction. After the reinforcement rod 2 is plugged into the first insertion hole 101 in the supporting leg in the left-to-right direction, the reinforcement rod 2 is installed in the front-to-back direction, and finally the insertion rod 201 is plugged into the second insertion hole 105 and the reinforcement rod 2 installed in the left-to-right direction to complete the assembly, and at the same time, a mortise and tenon structure reinforcement connection is formed to prevent the supporting leg from expanding outward and deforming.

[0026] In the embodiments of the present disclosure, as shown in the attached Figure 8 As shown, a telescopic rod 801 is installed on the bottom surface of the connecting frame 8, and a micro motor 802 is installed at the bottom end of the telescopic rod 801. The driving shaft of the micro motor 802 is coaxially connected with a gear 803. When the telescopic rod 801 moves down to the lowest position, the gear 803 is meshed and connected with the first rack 71. When the telescopic rod 801 is retracted to the highest position, the gear 803 is meshed and connected with the second rack 72. When the telescopic rod 801 is controlled to move downward by starting the switch 104, the micro motor 802 and the gear 803 are driven to move downward, so that the gear 803 is meshed with the first rack 71. Then, the micro motor 802 is started to rotate by the switch 104, and the gear 803 is moved through the first rack 71 to realize the movement of the slider 1031. After the telescopic rod 801 is started to retract, the micro motor 802 and the gear 803 are driven to move upward, and the gear 803 is meshed with the second rack 72, thereby realizing the reverse movement of the slider 1031.

[0027] In the embodiments of the present disclosure, as shown in the attached Figure 4 As shown, a cylinder is installed inside the cylinder fixing frame 6 and the connected air pipe 601 extends to both sides, the end of the air pipe 601 is connected to a second pneumatic arm 602, the end of the second pneumatic arm 602 is installed with an arc-shaped clamping plate, the arc-shaped clamping plate is clamped on the outside of the placement rack 103, and the controller of the cylinder is electrically connected to the switch 104. After pressing the switch 104, the cylinder is started to control the second pneumatic arm 602 to move, thereby clamping and fixing the placement rack 103 to keep it in place.

[0028] Embodiment 2, based on embodiment 1, as shown in the attached Figure 7As shown, the rack assembly 7 includes a first rack 71 and a second rack 72. The first rack 71 and the second rack 72 are respectively mounted on the inner walls of the slide groove on the top surface of the workbench 1. However, the height of the second rack 72 is higher than that of the first rack 71. Racks of different heights can be used to lead the gear 803 to move forward or backward under the premise of consistent steering, so as to adjust the position of the placement rack 103.

[0029] The working principle of this embodiment is as follows: the lower housing of the motor is placed on the workbench 1, and the slider 1031 slides in from the workbench 1. When the telescopic rod 801 is controlled to move downward by starting the switch 104, the micro motor 802 and the gear 803 are driven to move downward, so that the gear 803 is meshed with the first rack 71. Then, the micro motor 802 is started to rotate by the switch 104, and the gear 803 is moved by the first rack 71, so that the slider 1031 is moved, and the position of the placement rack 103 is preliminarily positioned. Open the infrared positioning part 3 to determine the center. After determining the center of the motor lower shell, adjust the height through the telescopic rod 801 so that the gear 803 is engaged with the first rack 71 and the second rack 72 at the same time, lock the slider 1031, press the switch 104 and start the cylinder to control the second pneumatic arm 602 to move, thereby clamping the placement frame 103 and keeping it in place, and then insert the motor axis, calibrate the infrared positioning part 3, and start the electric control moving module through the switch 104 to mobilize the connecting part 5 to move up and down, thereby driving the first pneumatic arm 501 to move up and down, until the upper and lower positions of the first pneumatic arm 501 with a fixed axis are adjusted to be on the same plane as the rotor, press the switch 104, open the first pneumatic arm 501 clamped by the motor axis, fix the axis, and align the center.

[0030] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0031] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0032] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A self-calibration shaft-entry tooling device for a brushless DC motor, comprising: A workbench (1); characterized in that support legs are welded to the bottom of the workbench (1), and a reinforcement rod (2) is inserted between the support legs; an infrared positioning member (3) is provided on the top surface of the workbench (1); a slide groove is provided on the top surface of the workbench (1), and a rack assembly (7) is installed inside the slide groove; an adjustment frame (4) is fixedly connected to the top surface of the workbench (1) and the top surface of the slide groove in the left and right directions; a mounting seat (102) is fixedly connected to the top surface of the workbench (1), and a placement frame (103) is installed on the top surface of the workbench (1); a slider (1031) is installed on the outer wall of the placement frame (103) and the inside of the slide groove; a connecting frame (8) is fixedly connected to the outer end surface of the slider (1031); a longitudinal slide groove (401) is provided inside the adjustment frame (4); a connecting member (5) is slidably engaged inside the longitudinal slide groove (401); and a cylinder fixing frame (6) is installed inside the mounting seat (102).

2. A brushless DC motor self-calibration shaft tooling device according to claim 1, characterized in that: A first plug hole (101) and a second plug hole (105) are provided inside the support leg of the workbench (1), the reinforcing rod (2) is plugged into the first plug hole (101), and a switch (104) is installed on the top surface of the workbench (1).

3. A brushless DC motor self-calibration shaft tooling device according to claim 2, characterized in that: Insertion rods (201) are respectively inserted into the front and rear ends of the reinforcement rod (2) installed in the front and rear directions. The insertion rod (201) is inserted into the second insertion hole (105), and the insertion rod (201) passes through the interior of the reinforcement rod (2) installed in the left and right directions.

4. A brushless DC motor self-calibration shaft tooling device according to claim 2, characterized in that: An infrared laser positioning module is provided on the front bottom surface of the infrared positioning element (3), and a controller of the infrared positioning element (3) is electrically connected to the switch (104).

5. The self-calibration shaft-entry tooling equipment for a brushless DC motor according to claim 2, characterized in that: The inner end of the connecting member (5) is mounted with a first pneumatic arm (501), the inner end of the first pneumatic arm (501) is mounted with a clamping plate (5011), the clamping plate (5011) is in an arc-shaped structure, and the outer end of the connecting member (5) is provided with an electrically controlled moving module electrically connected via a switch (104).

6. The self-calibration shaft-entry tooling equipment for a brushless DC motor according to claim 2, characterized in that: The cylinder fixing frame (6) has a cylinder installed inside and a connected air pipe (601) extending outward to both sides. The end of the air pipe (601) is connected to a second pneumatic arm (602). The end of the second pneumatic arm (602) is installed with an arc-shaped clamping plate, which is clamped on the outside of the placement frame (103), and the controller of the cylinder is electrically connected to the switch (104).

7. The self-calibration shaft-entry tooling equipment for a brushless DC motor according to claim 1, characterized in that: The rack assembly (7) comprises a first rack (71) and a second rack (72), the first rack (71) and the second rack (72) being respectively mounted on inner walls on both sides of a slide groove on the top surface of the workbench (1), but the height of the second rack (72) is higher than that of the first rack (71).

8. A brushless DC motor self-calibration shaft fixture according to claim 7, characterized in that: A telescopic rod (801) is installed on the bottom surface of the connecting frame (8), a micro motor (802) is installed at the bottom end of the telescopic rod (801), and a gear (803) is coaxially connected to the drive shaft of the micro motor (802); when the telescopic rod (801) moves down to the lowest position, the gear (803) is meshed and connected with the first rack (71); when the telescopic rod (801) retracts to the highest position, the gear (803) is meshed and connected with the second rack (72).

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