Compressor parallel motor terminal welding device

Abstract

This utility model relates to a welding device for terminals of a compressor parallel motor, comprising a worktable, a translation mechanism and a turntable mechanism mounted on the worktable, and a welding mechanism driven by the translation mechanism to perform translational movement along the X-axis. The welding mechanism includes an upper welding head and a lower welding head symmetrically arranged vertically, each welding head being controlled by an independent lifting mechanism to move in opposite directions. The turntable mechanism includes a base mounted on the worktable, a rotary table rotatably mounted on the base, and stator seats and electrode seats symmetrically arranged on the rotary table. This utility model has a simple structure, provides good terminal welding quality, high welding efficiency, and low equipment and labor costs, effectively improving the quality and production efficiency of compressor parallel motors and reducing production costs.

Description

Technical Field

[0001] This utility model relates to a welding device for the terminals of a compressor parallel motor, belonging to the technical field of motor production technology and equipment. Background Technology

[0002] In the assembly process of parallel motors for new energy compressors, it is necessary to weld the three-phase terminals of the motor to the enameled wire of the motor coil. Currently, terminal welding is done manually. However, manual welding results in inconsistent quality, incomplete removal of the insulation varnish from the enameled wire, and unstable conductivity between the wire and the terminals, affecting motor quality. Furthermore, it is costly and inefficient, impacting the production efficiency of parallel motors for compressors. Therefore, there is an urgent need for a terminal welding device for parallel motors of compressors that offers high welding quality, high efficiency, and low equipment and labor costs. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a compressor parallel motor terminal welding device with good welding quality, high efficiency, and low equipment and labor costs, thereby improving the quality of compressor parallel motors and the production efficiency of parallel motors.

[0004] The purpose of this utility model is achieved as follows: A compressor parallel motor terminal welding device includes a worktable, a translation mechanism and a turntable mechanism disposed on the worktable, and a welding mechanism driven by the translation mechanism to perform translational movement along the X-axis. The welding mechanism includes an upper welding head and a lower welding head arranged symmetrically at the top and bottom, and the two welding heads are controlled by an independent lifting mechanism to move up and down in opposite directions. The turntable mechanism includes a base mounted on a workbench, a rotary table rotatably mounted on the base, and a stator seat and an electrode seat symmetrically mounted on the rotary table. The stator base and electrode base are used to place the motor stator and three-phase terminals with the three-phase terminals crimped, respectively; the rotary table rotates to position the three-phase terminals between the upper welding head and the lower welding head; the upper welding head and the lower welding head move closer to the terminals and press them together, and the terminals are firmly welded to the enameled wire using medium frequency resistance welding; the upper welding head and the lower welding head retract, and the translation mechanism drives the welding mechanism to move sequentially to the remaining two terminal positions for welding.

[0005] Furthermore, the translation mechanism includes a guide rail and a servo motor fixed on the worktable, a slide table slidably mounted on the guide rail, and a lead screw driven to rotate by the servo motor; a nut threaded onto the lead screw is provided at the bottom of the slide table, and the rotation of the lead screw can drive the slide table to perform translational movement; the welding mechanism is mounted on the slide table.

[0006] Furthermore, the upper welding head is driven by an electric cylinder to perform lifting and lowering movements; the lower welding head is driven by a pneumatic cylinder to perform lifting and lowering movements.

[0007] Furthermore, a fume hood is provided above the welding mechanism to absorb the fumes generated during welding.

[0008] Furthermore, the electrode holder is fixed to the rotary table by S-shaped and L-shaped support rods that are fixedly connected in sequence.

[0009] Furthermore, the rotary table is provided with baffles that separate the two sets of stator seats and electrode seats.

[0010] Furthermore, the rotary table is driven to rotate by a motor located at its bottom, and a sensor is provided on the base to monitor the rotational position of the rotary table.

[0011] Furthermore, the workbench is equipped with a welding power source to provide power to the welding mechanism.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention employs a rotary mechanism to rotate the motor stator with crimped terminals to the middle of the upper and lower welding heads of the welding mechanism for medium-frequency resistance welding. This causes the enamel coating of the wire at the crimped terminal to vaporize, ensuring good conductivity and eliminating contact resistance. Then, a translation mechanism sequentially moves the welding mechanism to the remaining two terminal positions for sequential welding, completing all welding operations for the three-phase terminals. The welding device has a simple overall structure, good welding quality, high efficiency, and low equipment and labor costs, effectively improving the terminal welding quality of the compressor parallel motor and the production efficiency of the parallel motor. Attached Figure Description

[0013] Figure 1 This is a plan view of a compressor parallel motor terminal welding device according to the present invention.

[0014] Figure 2 This is a schematic diagram of the welding mechanism and translation mechanism of a compressor parallel motor terminal welding device according to the present invention.

[0015] Figure 3 This is a schematic diagram of the turntable mechanism of a compressor parallel motor terminal welding device according to the present invention.

[0016] Figure 4 This is a top view of the turntable mechanism of a compressor parallel motor terminal welding device according to the present invention.

[0017] in: Translation mechanism 1, welding mechanism 2, turntable mechanism 3, welding power source 4, worktable 5, fume hood 6; Guide rail 11, servo motor 12, slide table 13, lead screw 14, mounting bracket 20, upper welding head 21, lower welding head 22, electric cylinder 23, pneumatic cylinder 24, base 31, rotary table 32, stator seat 33, electrode seat 34, S-shaped support rod 35, L-shaped support rod 36, baffle 37, sensor 38. Detailed Implementation

[0018] See Figures 1-4 This utility model relates to a welding device for the terminals of a compressor parallel motor, comprising a worktable 5, a translation mechanism 1, a turntable mechanism 3 and a welding power source 4 disposed on the worktable 5, and a welding mechanism 2 driven by the translation mechanism 1 to perform translational movement along the X-axis; a fume hood 6 is disposed above the welding mechanism 2 to absorb the fumes generated during welding and protect the working environment. The translation mechanism 1 includes a guide rail 11 and a servo motor 12 fixed on the worktable 5, a slide table 13 slidably disposed on the guide rail 11, and a lead screw 14 driven to rotate by the servo motor 12; a nut threaded onto the lead screw 14 is provided at the bottom of the slide table 13; the servo motor 12 drives the lead screw 14 to rotate, thereby driving the slide table 13 to perform translational movement. The welding mechanism 2 includes two mounting brackets 20 fixed on the slide table 13. An electric cylinder 23 and a pneumatic cylinder 24 are respectively mounted on the upper and lower mounting brackets 20. The electric cylinder 23 and the pneumatic cylinder 24 drive the upper welding head 21 and the lower welding head 22 to perform independent lifting and lowering actions. The two welding heads are symmetrically arranged above and below and perform synchronous lifting and lowering actions in opposite directions. The two welding heads are connected to the welding power source through copper busbar wires. The turntable mechanism 3 includes a base 31 mounted on a worktable 5, a rotary table 32 rotatably mounted on the base 31, and two sets of stator seats 33 and electrode seats 34 symmetrically mounted on the rotary table 32. The rotary table 32 is driven to rotate by a motor located at its bottom. A sensor 38 for monitoring the rotational position of the rotary table 32 is provided on the base 31. A baffle 37 is provided on the rotary table 32 to separate the two sets of stator seats 33 and electrode seats 34. The electrode seats 34 are fixedly mounted on the rotary table 31 by S-shaped support rods 35 and L-shaped support rods 36 fixedly connected in sequence. When welding the terminals, first place the motor stator and the three-phase terminals with the crimped three-phase terminals on the stator base 33 and electrode base 34; the rotary table 32 rotates to position the three-phase terminals between the upper welding head 21 and the lower welding head 22; the upper welding head 21 and the lower welding head 22 simultaneously approach and press the terminals together, hold for 3 seconds, and use the large current generated by the medium frequency resistance welding to generate the largest resistance at the crimping position between the terminal and the enameled wire, which will generate high temperature instantly, causing the enamel of the enameled wire at the crimping point of the terminal to vaporize and at the same time weld the terminal and the enameled wire firmly, ensuring good conductivity and no contact resistance; the upper welding head 21 and the lower welding head 22 retract, and the lead screw 14 of the translation mechanism 1 rotates, thereby driving the welding mechanism 2 to sequentially translate to the second and third terminal positions to complete the welding of the remaining two terminals; The welding device of this invention can more accurately and efficiently complete the automatic pressure welding of the three-phase terminals of the compressor parallel motor, reducing equipment and labor costs, improving efficiency, and the welding quality is far superior to manual welding.

[0019] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A compressor parallel motor terminal welding apparatus characterized by: It includes a worktable (5), a translation mechanism (1) and a turntable mechanism (3) set on the worktable (5), and a welding mechanism (2) driven by the translation mechanism (1) to perform translational movement along the X-axis. The welding mechanism (2) includes an upper welding head (21) and a lower welding head (22) arranged symmetrically above and below each other. The two welding heads are controlled by an independent lifting mechanism to move up and down in opposite directions. The turntable mechanism (3) includes a base (31) mounted on a workbench (5), a rotary table (32) rotatably mounted on the base (31), a stator seat (33) symmetrically mounted on the rotary table (32), and an electrode seat (34). The stator seat (33) and electrode seat (34) are used to place the motor stator and three-phase terminals with the three-phase terminals crimped. The rotary table (32) rotates to position the three-phase terminals between the upper welding head (21) and the lower welding head (22). The upper welding head (21) and the lower welding head (22) move closer to the terminals and crimp them together. The terminals are then welded to the enameled wire using medium frequency resistance welding. The upper welding head (21) and the lower welding head (22) retract, and the translation mechanism (1) drives the welding mechanism (2) to move sequentially to the remaining two terminal positions for welding.

2. The compressor parallel motor terminal welding apparatus of claim 1, wherein: The translation mechanism (1) includes a guide rail (11) and a servo motor (12) fixed on the worktable (5), a slide (13) slidably arranged on the guide rail (11), and a lead screw (14) driven to rotate by the servo motor (12); a nut threaded onto the lead screw (14) is provided at the bottom of the slide (13), and the rotation of the lead screw (14) can drive the slide (13) to perform translational movement; the welding mechanism (2) is installed on the slide (13).

3. The compressor parallel motor terminal welding apparatus of claim 1, wherein: The upper welding head (21) is driven by an electric cylinder (23) to perform a lifting and lowering action; the lower welding head (22) is driven by a pneumatic cylinder (24) to perform a lifting and lowering action.

4. The compressor parallel motor terminal welding apparatus of claim 1, wherein: A fume hood (6) is provided above the welding mechanism (2) to absorb the fumes generated during welding.

5. The compressor parallel motor terminal welding device according to claim 1, characterized in that: The electrode holder (34) is fixed on the rotary table (32) by an S-shaped support rod (35) and an L-shaped support rod (36) that are fixed in sequence.

6. The compressor parallel motor terminal welding apparatus of claim 1, wherein: The rotary table (32) is provided with baffles (37) that separate the two sets of stator seats (33) and electrode seats (34).

7. The compressor parallel motor terminal welding apparatus of claim 1, wherein: The rotary table (32) is driven to rotate by a motor located at its bottom, and a sensor (38) is provided on the base (31) to monitor the rotation position of the rotary table (32).

8. The compressor parallel motor terminal welding device according to claim 1, characterized in that: The workbench (5) is equipped with a welding power source (4) to provide power to the welding mechanism (2).

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