CN210465631U

CN210465631U - Micromotor welding and detection device

Info

Publication number: CN210465631U
Application number: CN201921275900.1U
Authority: CN
Inventors: 李卫红
Original assignee: Changzhou Institute of Technology
Current assignee: Changzhou Institute of Technology
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-05-05
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a micromotor welding and detection device belongs to the frock clamp field. The utility model discloses a micromotor welding and detection device, including welding frock and detection frock, the welding frock includes anchor clamps and elasticity top pearl mechanism, has the micromotor installation cavity on the anchor clamps, and the bottom in micromotor installation cavity is equipped with the motor shaft and dodges the through-hole, is equipped with a set of elasticity top pearl mechanism on the lateral wall in micromotor installation cavity at least; the detection tool comprises a direct-current stabilized power supply, a torque tester and an adapter. The utility model utilizes the clamp with the elastic bead-pushing mechanism to fix the micromotor for wire welding, has high welding efficiency and good welding quality, can provide certain micromotor pull-out resistance, and utilizes the welded wire to pull out the micromotor to detect the welding quality, thereby effectively preventing the problem of wire insufficient welding; meanwhile, the no-load current and the torque of the micromotor are detected directly on the clamp by using a direct-current stabilized voltage power supply and a torque tester, so that the quality detection of the micromotor is more flexible and convenient.

Description

Micromotor welding and detection device

Technical Field

The utility model relates to a welding and detection frock, more specifically say, relate to a micromotor welding and detection device, can enough be used for the clamping of micromotor wire welding machine process, can be used for the detection of micromotor performance again.

Background

Micromotors, collectively called "micromotors", generally refer to motors having a diameter of less than 160mm or a power rating of less than 750 mW. The micro motor has wide market application field, relates to various aspects of national economy, national defense equipment and human life, and can be almost seen in all occasions needing electric drive.

Along with the increasing automation and intelligentization degree of household appliances, in the design process of intelligent household appliances, the micro-motor is applied more and more to realize the automation and intelligentization of products, so that the requirements on the assembly, inspection and detection of micro-motor parts are also increased more and more. However, in the wire bonding process of the micro-motor, the operator often uses one hand to hold and fix the micro-motor and the other hand to perform the bonding operation. In this case, one hand of the operator acts as a gripper, which is not safe and inefficient. In particular, the handheld micro-motor is not stable enough to cause the micro-motor to roll, so that the conditions of insufficient soldering and the like are generated, and the soldering quality of the micro-motor is seriously influenced. Meanwhile, according to the technical requirements of products, the performance of the motor needs to be inspected completely or randomly in the process, for example, the no-load current value of the micro motor is inspected by using the total number of the direct current stabilized power supply; and the torque of the micromotor is sampled and detected by using a motor torque tester.

Based on the existing welding method and detection requirements of the micro-motor, a tool clamp integrating the wire welding and the performance quality detection of the micro-motor is urgently needed to be designed.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to overcome the defects of low welding efficiency, unstable welding quality, poor operation safety, inconvenient quality detection and the like of the micromotor in the existing welding method of the micromotor wire, and provides a micromotor welding and detecting device, which adopts the technical scheme of the utility model, utilizes a clamp with an elastic bead-pushing mechanism to fix the micromotor to weld the wire, on one hand, the welding efficiency is high, the welding quality is good, on the other hand, a certain micromotor pulling-out resistance can be provided, the micromotor is pulled out by utilizing the welded wire to detect the welding quality, and the problem of wire false welding is effectively prevented; and the direct current stabilized voltage power supply is directly utilized on the clamp to detect the no-load current of the micromotor, the torque tester is utilized to detect the torque of the micromotor under the power supply of the direct current stabilized voltage power supply, and the quality detection of the micromotor is more flexible and convenient.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a micromotor welding and detection device, including welding frock and detection frock, wherein:

the welding tool comprises a clamp and an elastic bead pushing mechanism, wherein a micromotor installation cavity for installing a micromotor is formed in the clamp, a motor shaft avoiding through hole is formed in the bottom of the micromotor installation cavity, and at least one group of elastic bead pushing mechanisms for clamping the micromotor to provide micromotor pull-out resistance are arranged on the side wall of the micromotor installation cavity;

the detection tool comprises a direct-current stabilized power supply, a torque tester and an adapter, wherein a test wire of the direct-current stabilized power supply is electrically connected with a positive lead and a negative lead which are welded on the micromotor through an alligator clip and is used for detecting the no-load current of the micromotor; the torque tester is electrically connected with the adapter, the adapter is installed at the bottom of the clamp, and a torque input end of the adapter is in transmission connection with an output shaft of the micromotor in the clamp and used for detecting the torque of the micromotor under the power supply of the direct-current stabilized power supply.

Furthermore, 3 groups of elastic bead pushing mechanisms are uniformly arranged on the side wall of the micromotor installation cavity along the circumferential direction.

Furthermore, the elastic bead ejecting mechanism comprises a steel ball, a pressure spring and a screw, a steel ball mounting hole is formed in the side wall of the micromotor mounting cavity of the fixture, the aperture of one end, close to the micromotor mounting cavity, of the steel ball mounting hole is smaller than the diameter of the steel ball, the steel ball is mounted in the steel ball mounting hole, the pressure spring is arranged at the rear part of the steel ball, and the screw is in threaded connection with the rear part of the steel ball mounting hole and used for packaging the pressure spring and the steel ball in the steel ball mounting hole.

Furthermore, the screw is adjustably arranged in the steel ball mounting hole, and the pretightening force of the pressure spring is adjusted by screwing the screw.

Furthermore, a dovetail groove is formed in the bottom of the through hole for avoiding the motor shaft of the clamp, and the adapter is installed at the bottom of the clamp in a sliding fit mode through the dovetail groove.

Furthermore, a torque input gear is arranged at a torque input end of the adapter, and the torque input gear is meshed with an output shaft gear on an output shaft of the micro motor after the adapter is installed at the bottom of the clamp.

Furthermore, the bottom of the clamp is also provided with a circular base, and the side wall of the base is provided with a positioning plane. 3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a micromotor welding and detection device, it includes welding frock and detection frock, and the welding frock utilizes the anchor clamps that have elasticity top pearl mechanism to fix the micromotor and carry out the wire welding, and welding efficiency is high on the one hand, and welding quality is good, and on the other hand can provide certain micromotor pull-out resistance, utilizes the wire that the welding is good to pull out the micromotor in order to detect welding quality, has effectively prevented the wire rosin joint problem; in addition, the detection tool directly detects the no-load current of the micromotor on the clamp by using the direct-current stabilized power supply, and detects the torque of the micromotor by using the torque tester under the power supply of the direct-current stabilized power supply, so that the quality detection of the micromotor is more flexible and convenient;

(2) the utility model discloses a micromotor welding and detection device, its elasticity pushes up pearl mechanism and evenly is equipped with 3 groups along the circumferencial direction on the lateral wall of micromotor installation cavity, and the clamping action to the micromotor is more stable, and micromotor installation axiality is good, is convenient for steadily transmit the moment of torsion with the adapter transmission connection of torque tester, and the testing result is more accurate;

(3) the utility model discloses a micromotor welding and detection device, its elasticity pushes up pearl mechanism and includes steel ball, pressure spring and screw, simple structure, and the setting is convenient; the pretightening force of the pressure spring can be adjusted by screwing the screw, so that the pulling force of the micromotor can be flexibly adjusted, and the detection of the welding quality of the lead is facilitated;

(4) the utility model discloses a micromotor welding and detection device, its motor shaft of anchor clamps dodges the through-hole bottom and is equipped with the dovetail, and the adapter is installed in the bottom of anchor clamps through dovetail sliding fit, is convenient for realize the moment of torsion transmission fast, is convenient for the selective examination of micromotor moment of torsion;

(5) the utility model discloses a micromotor welding and detection device, the moment of torsion input end of its adapter is equipped with moment of torsion input gear, and after the adapter was installed in the bottom of anchor clamps, moment of torsion input gear meshed with the output shaft gear on the micromotor output shaft, utilizes the micromotor output shaft to take output shaft gear from taking and is connected with the adapter transmission, and the moment of torsion transmission is reliable and stable, and the detection data is more accurate;

(6) the utility model discloses a micromotor welding and detection device, the bottom of its anchor clamps still is equipped with circular base, is equipped with location plane on the lateral wall of base, and the installation location of the anchor clamps of being convenient for operates nimble more convenient.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a welding tool in a welding and detecting device for a micro-motor according to the present invention;

FIG. 2 is a schematic top view of the welding tool of FIG. 1;

FIG. 3 is a schematic view of the installation state of the micro motor in the welding tool of the present invention;

fig. 4 is a schematic diagram of a state of the micro motor for welding a wire in the welding tool of the present invention;

FIG. 5 is a schematic view of the no-load current detection state of the micro-motor of the present invention;

fig. 6 is a schematic diagram of the torque detection state of the middle micro motor according to the present invention.

The reference numerals in the schematic drawings illustrate:

1. a clamp; 1-1, installing a cavity of the micro motor; 1-2, avoiding a through hole by a motor shaft; 1-3, dovetail grooves; 1-4, a base; 1-5, positioning a plane; 2. an elastic bead ejecting mechanism; 2-1, steel balls; 2-2, a pressure spring; 2-3, screws; 3. a micro-motor; 3-1, an output shaft gear; 3-2, welding spots; 4. a wire; 5. a DC stabilized power supply; 5-1, testing line; 5-2, crocodile clips; 6. a torque tester; 7. an adapter; 7-1, torque input gear.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Examples

With reference to fig. 1 to 6, the welding and detecting device for the micro-motor of the present embodiment includes two parts, namely a welding tool and a detecting tool, wherein the welding tool is used for clamping and fixing the micro-motor 3, facilitating welding of the positive and negative leads 4, and for rapid detection of welding quality; the detection tool is mainly used for detecting the no-load current and the torque of the micro motor 3. Wherein:

the welding tool comprises a clamp 1 and an elastic bead pushing mechanism 2, wherein a micro-motor installation cavity 1-1 for installing a micro-motor 3 is formed in the clamp 1, the diameter of the micro-motor installation cavity 1-1 is slightly larger than the outer diameter of the micro-motor 3, so that the micro-motor 3 can be conveniently placed in the micro-motor installation cavity 1-1, a motor shaft avoiding through hole 1-2 is formed in the bottom of the micro-motor installation cavity 1-1, the micro-motor 3 is reversely arranged in the micro-motor installation cavity 1-1, and an output shaft of the micro-motor 3 is located in the motor shaft avoiding through hole 1-2 (the installation state of the micro-motor 3 is shown in figure 3). The side wall of the micromotor installation cavity 1-1 is at least provided with a group of elastic bead pushing mechanisms 2 used for clamping the micromotor 3 to provide pull-out resistance for the micromotor 3, the elastic bead pushing mechanisms 2 are used for fixing the micromotor 3 on one hand, poor welding caused by shaking in the welding process of the micromotor 3 is effectively prevented, the welding quality and the welding efficiency are improved, the elastic bead pushing mechanisms 2 are used for providing certain pulling resistance for the micromotor 3 on the other hand, after welding of the positive and negative leads 4 is completed, the leads 4 are pulled upwards to pull out the micromotor 3, and the problems of detecting the welding quality of the leads 4, checking whether the false welding exists and the like are solved. As shown in fig. 2, in order to ensure the clamping stability of the micro-motor 3, 3 groups of elastic bead-pushing mechanisms 2 are preferably uniformly arranged on the side wall of the micro-motor mounting cavity 1-1 along the circumferential direction, so that the clamping effect on the micro-motor 3 is more stable, the micro-motor 3 is good in mounting coaxiality, and is convenient to be stably connected with an adapter of a torque tester in a transmission manner to transmit torque, and the detection result is more accurate. Specifically, the elastic bead ejecting mechanism 2 comprises a steel ball 2-1, a pressure spring 2-2 and a screw 2-3, a steel ball mounting hole is formed in the side wall of a micromotor mounting cavity 1-1 of the clamp 1, the aperture of one end, close to the micromotor mounting cavity 1-1, of the steel ball mounting hole is smaller than the diameter of the steel ball 2-1, the steel ball 2-1 is mounted in the steel ball mounting hole, the pressure spring 2-2 is arranged at the rear portion of the steel ball 2-1, and the screw 2-3 is in threaded connection with the rear portion of the steel ball mounting hole and used for packaging the pressure spring 2-2 and the steel ball 2-1 in the steel. The elastic bead pushing mechanism 2 with the structure is simple in structure and convenient to set. And the screws 2-3 are adjustably arranged in the steel ball mounting holes, and the pretightening force of the pressure springs 2-2 can be adjusted by screwing the screws 2-3, so that the pulling force of the micro-motor 3 can be flexibly adjusted, and the detection of the welding quality of the lead is further facilitated. When the lead of the micromotor 3 is welded, the micromotor 3 is placed into the micromotor installation cavity 1-1, and three groups of screws 2-3 are adjusted by a screwdriver, so that the micromotor 3 is effectively clamped by the three steel balls 2-1 and cannot rotate freely. Then, as shown in fig. 4, two wires with different colors are respectively welded on the lug plate welding spots 3-2 of the micromotor 3 by using an electric iron, and the positive and negative electrodes are distinguished by using the wires with different colors; after welding, slightly lifting two welded wires 4 upwards, wherein the wires 4 can extract the micromotor 3 from the fixture, and the pulling force can be adjusted by adjusting three screws 2-3 on the fixture 1, so that the welding quality of the wires of the micromotor 3 can be checked, the welding can be carried out again immediately if the wires fall off, and the process is repeated to ensure that the welding quality of the micromotor reaches 100 percent.

As shown in fig. 5 and 6, the detection tool comprises a direct current stabilized power supply 5, a torque tester 6 and an adapter 7, wherein a test wire 5-1 of the direct current stabilized power supply 5 is electrically connected with a positive and negative electrode lead 4 welded on the micromotor 3 through an alligator clip 5-2 and is used for detecting the no-load current of the micromotor 3. The torque tester 6 is electrically connected with the adapter 7, the adapter 7 is installed at the bottom of the clamp 1, and the torque input end of the adapter 7 is in transmission connection with the output shaft of the micromotor 3 in the clamp 1 and used for detecting the torque of the micromotor 3 under the power supply of the direct-current stabilized voltage power supply 5. In the embodiment, the dovetail grooves 1-3 are formed in the bottom of the motor shaft avoiding through hole 1-2 of the fixture 1, the adapter 7 is installed at the bottom of the fixture 1 through the dovetail grooves 1-3 in a sliding fit mode, and the dovetail grooves 1-3 provide a connecting space for the adapter 7, so that torque transmission can be achieved quickly, and selective inspection of torque of a micromotor is facilitated. Furthermore, a torque input gear 7-1 is arranged at a torque input end of the adapter 7, after the adapter 7 is installed at the bottom of the clamp 1, the torque input gear 7-1 is meshed with an output shaft gear 3-1 on an output shaft of the micro motor 3, the output shaft of the micro motor 3 is in transmission connection with the adapter 7 through the output shaft gear, torque transmission is stable and reliable, and detection data are more accurate. When the device is installed, the convex block matched with the dovetail groove 1-3 at the upper part of the adapter 7 is inserted into the dovetail groove 1-3 and slides forwards to a proper position, at the moment, the torque input gear 7-1 can be meshed with the output shaft gear 3-1, and the quick transmission connection of the micro motor 3 and the adapter 7 of the torque tester 6 is realized. In addition, the bottom of the clamp 1 is also provided with a circular base 1-4, and the side wall of the base 1-4 is provided with a positioning plane 1-5, so that the clamp is convenient to mount and position, and the operation is more flexible and convenient.

As shown in fig. 5, when the no-load current of the micro-motor is fully or randomly inspected, the micro-motor 3 is clamped by the clamp 1, the power supply of the micro-motor 3 is detected by the direct current stabilized power supply 5, the anode and the cathode of the crocodile clip 5-2 on the test line 5-1 of the direct current stabilized power supply 5 and the anode and the cathode of the welding lead 4 on the micro-motor 3 are respectively clamped, the direct current stabilized power supply 5 is turned on, the micro-motor 3 starts no-load, whether the current meter display on the direct current stabilized power supply 5 is stable or not is checked, and whether the working current value of the micro-motor. As shown in fig. 6, when the torque of the micromotor is fully or randomly inspected, the micromotor 3 is clamped by the clamp 1 to keep the connection of the micromotor 3 and the direct current stabilized voltage power supply 5; the clamp 1 provided with the micro motor is connected with the adapter 7 of the torque tester 6 in a sliding fit mode through the dovetail grooves 1-3, so that the output shaft gear 3-1 of the micro motor is in meshed transmission with the torque input gear 7-1 of the adapter 7, the direct current stabilized voltage power supply 5 and the torque tester 6 are respectively started, and whether the numerical value displayed on the display of the torque tester 6 meets the torque requirement in the technical requirement of the micro motor or not is checked. The direct-current stabilized power supply 5 and the torque tester 6 both adopt the existing products.

The utility model discloses a micromotor welding and detection device, it utilizes the anchor clamps that have elasticity top pearl mechanism to fix micromotor and carries out the wire welding, and welding efficiency is high on the one hand, and welding quality is good, and on the other hand can provide certain micromotor pull-out resistance, utilizes the wire that welds good to pull out micromotor in order to detect welding quality, has effectively prevented the wire rosin joint problem; and the direct current stabilized voltage power supply is directly utilized on the clamp to detect the no-load current of the micromotor, the torque tester is utilized to detect the torque of the micromotor under the power supply of the direct current stabilized voltage power supply, and the quality detection of the micromotor is more flexible and convenient.

The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.

Claims

1. The utility model provides a micromotor welding and detection device, includes welding frock and detection frock, its characterized in that:

the welding tool comprises a clamp (1) and an elastic bead pushing mechanism (2), wherein a micro motor installation cavity (1-1) for installing a micro motor (3) is formed in the clamp (1), a motor shaft avoiding through hole (1-2) is formed in the bottom of the micro motor installation cavity (1-1), and at least one group of elastic bead pushing mechanisms (2) for clamping the micro motor (3) to provide pull-out resistance for the micro motor (3) are arranged on the side wall of the micro motor installation cavity (1-1);

the detection tool comprises a direct-current stabilized power supply (5), a torque tester (6) and an adapter (7), wherein a test wire (5-1) of the direct-current stabilized power supply (5) is electrically connected with a positive and negative electrode lead (4) welded on the micromotor (3) through an alligator clip (5-2) and is used for detecting the no-load current of the micromotor (3); the torque tester (6) is electrically connected with the adapter (7), the adapter (7) is installed at the bottom of the clamp (1), and the torque input end of the adapter (7) is in transmission connection with the output shaft of the micromotor (3) in the clamp (1) and used for detecting the torque of the micromotor (3) under the power supply of the direct-current stabilized power supply (5).

2. The micro-machine welding and inspection device of claim 1, wherein: the elastic bead ejecting mechanism (2) is uniformly provided with 3 groups along the circumferential direction on the side wall of the micromotor installation cavity (1-1).

3. A micro-machine welding and inspection device according to claim 1 or 2, characterized in that: the elastic bead ejecting mechanism (2) comprises a steel ball (2-1), a pressure spring (2-2) and a screw (2-3), a steel ball mounting hole is formed in the side wall of a micromotor mounting cavity (1-1) of the clamp (1), the aperture of one end, close to the micromotor mounting cavity (1-1), of the steel ball mounting hole is smaller than the diameter of the steel ball (2-1), the steel ball (2-1) is mounted in the steel ball mounting hole, the pressure spring (2-2) is arranged at the rear part of the steel ball (2-1), and the screw (2-3) is in threaded connection with the rear part of the steel ball mounting hole and used for packaging the pressure spring (2-2) and the steel ball (2-1) in the steel ball mounting hole.

4. The micro-machine welding and inspection device of claim 3, wherein: the screws (2-3) are adjustably arranged in the steel ball mounting holes, and the pretightening force of the pressure spring (2-2) is adjusted by screwing the screws (2-3).

5. The micro-machine welding and inspection device of claim 1, wherein: the adapter is characterized in that dovetail grooves (1-3) are formed in the bottom of a motor shaft avoiding through hole (1-2) of the clamp (1), and the adapter (7) is installed at the bottom of the clamp (1) in a sliding fit mode through the dovetail grooves (1-3).

6. The micro-machine welding and inspection device of claim 5, wherein: the torque input end of the adapter (7) is provided with a torque input gear (7-1), and after the adapter (7) is installed at the bottom of the clamp (1), the torque input gear (7-1) is meshed with an output shaft gear (3-1) on an output shaft of the micromotor (3).

7. The micro-machine welding and inspection device of claim 6, wherein: the bottom of the clamp (1) is also provided with a round base (1-4), and the side wall of the base (1-4) is provided with a positioning plane (1-5).