阅读说明：本技术 一种电机碳刷刷辫焊接用自动预焊机 (Automatic pre-welding machine for welding brush braid of motor carbon brush ) 是由 周强 于 2019-10-28 设计创作，主要内容包括：本发明公开的属于电极碳刷刷辫焊接技术领域,具体为一种电机碳刷刷辫焊接用自动预焊机,包括操作台架,所述操作台架的上表面中部设置有分度转盘,所述分度转盘的上表面边缘处等距离设置有物料夹持板,所述操作台架的上表面右端设置有上料振动机构,所述操作台架的上表面右侧设置有进料机构,所述进料机构的进料端与上料振动机构连接,所述进料机构的出料端与分度转盘上的物料夹持板相对应,所述操作台架的上表面中前侧设置有理线拉直机构,由于碳刷刷辫对刷辫的物理整形和恒定电流对焊头温度的控制,刷辫无论从松散度以及清洁度都有明显改善；保证了碳刷刷辫的焊接拉脱力满足并优于规定要求,重要的是拉脱力的稳定性和一致性都有显著提高。(The invention belongs to the technical field of electrode carbon brush braid welding, and particularly relates to an automatic pre-welding machine for welding a motor carbon brush braid, which comprises an operation bench frame, wherein an indexing turntable is arranged in the middle of the upper surface of the operation bench frame, material clamping plates are arranged at the edge of the upper surface of the indexing turntable at equal intervals, a feeding vibration mechanism is arranged at the right end of the upper surface of the operation bench frame, a feeding mechanism is arranged on the right side of the upper surface of the operation bench frame, the feeding end of the feeding mechanism is connected with the feeding vibration mechanism, the discharging end of the feeding mechanism corresponds to the material clamping plates on the indexing turntable, a wire straightening mechanism is arranged on the front side of the upper surface of the operation bench frame, and the carbon brush braid can be obviously improved in terms of looseness and cleanliness due to the fact that the carbon brush braid performs physical shaping on the brush and the constant current controls on the temperature of a welding head; the welding pull-out force of the carbon brush braid is ensured to meet and exceed the specified requirements, and importantly, the stability and consistency of the pull-out force are obviously improved.)

1. The utility model provides an automatic pre-welding machine is used in welding of motor carbon brush braid, includes operation panel frame (1), its characterized in that: the automatic welding device is characterized in that an indexing turntable (2) is arranged in the middle of the upper surface of an operating table frame (1), material clamping plates (3) are arranged at the edge of the upper surface of the indexing turntable (2) at equal intervals, a feeding vibration mechanism (4) is arranged at the right end of the upper surface of the operating table frame (1), a feeding mechanism (5) is arranged on the right side of the upper surface of the operating table frame (1), the feeding end of the feeding mechanism (5) is connected with the feeding vibration mechanism (4), the discharging end of the feeding mechanism (5) corresponds to the material clamping plates (3) on the indexing turntable (2), a wire straightening mechanism (6) is arranged on the front side of the upper surface of the operating table frame (1), the wire straightening mechanism (6) is located on the lower side of the material clamping plates (3) and corresponds to the material clamping plates (3), and a welding pressure mechanism (7) is arranged on the left side of the upper surface of the operating table frame (1), the automatic material discharging device is characterized in that an automatic material discharging mechanism (8) is arranged on the rear side of the upper surface of the operating table frame (1), and the automatic material discharging mechanism (8) corresponds to the position of the material clamping plate (3).

2. The automatic pre-welding machine for welding the carbon brush braid of the motor according to claim 1, characterized in that: the material clamping plate (3) comprises a material clamping plate body (31), one end, close to the indexing turntable (2), of the material clamping plate body (31) is connected with the indexing turntable (2) through a screw, and one end, far away from the indexing turntable (2), of the material clamping plate body (31) is provided with a material clamping groove (32).

3. The automatic pre-welding machine for welding the carbon brush braid of the motor according to claim 1, characterized in that: material loading vibration mechanism (4) are including vibrations base (41), the upper surface of vibrations base (41) is provided with material storage compartment (42), the left side wall intercommunication of material storage compartment (42) has discharging pipe (43), logical groove (44) have been seted up at the lower surface middle part of discharging pipe (43), the left end of discharging pipe (43) is corresponding with the position of feed mechanism (5).

4. The automatic pre-welding machine for welding the carbon brush braid of the motor according to claim 3, characterized in that: feeding mechanism (5) are including feeding base (51), the upper surface left side of feeding base (51) is provided with first feed cylinder (52), the flexible end upside of first feed cylinder (52) is connected with striker plate (53), the upper surface right side of feeding base (51) is provided with second feed cylinder (54), the flexible end left side of second feed cylinder (54) is provided with push rod (55), striker plate (53) are including striker plate body (531), scratch pad (532) has been seted up to the lower surface of striker plate body (531), striker plate body (531) are located the left end of discharging pipe (43), push rod (55) are located the right side of striker plate body (531), scratch pad (532) correspond with material grip block (3) position.

5. The automatic pre-welding machine for welding the carbon brush braid of the motor according to claim 1, characterized in that: reason line mechanism (6) of flare-outing is including straightening cylinder (61), fixed mounting has storage housing (62) on the outer wall of straightening cylinder (61), centre gripping groove (63) have been seted up on storage housing's (62) outer wall, the flexible end of straightening cylinder (61) is located storage housing's (62) inner wall and is connected with two lower arm lock (64) that the symmetry set up through the connecting axle, the upper end of arm lock (64) is connected with arm lock (65), two down arm lock (64) support has reset spring.

6. The automatic pre-welding machine for welding the carbon brush braid of the motor according to claim 1, characterized in that: welding pressure mechanism (7) are including backup pad (71), the lower surface middle part fixedly connected with motor lift of backup pad (71) drives actuating cylinder (72), the front and back side of the upper surface of backup pad (71) is fixedly connected with negative pole respectively and drives actuating cylinder (73) and anodal actuating cylinder (74) that drives, the negative pole drives actuating cylinder (73) and anodal actuating cylinder (74) looks at the flexible end of end and installs welding negative electrode (76) and welding positive electrode (75) respectively, the front and back side in the upper surface middle part of backup pad (71) all is provided with welding support ceramic plate (77).

7. The automatic pre-welding machine for welding the carbon brush braid of the motor according to claim 1, characterized in that: the automatic discharging mechanism (8) comprises a positioning plate (81), a push-pull cylinder (82) is arranged on the lower surface of the positioning plate (81), a longitudinal moving cylinder (83) is connected to the front end of the push-pull cylinder (82), and a poking rod (84) is connected to the bottom end of the longitudinal moving cylinder (83).

Technical Field

The invention relates to the technical field of electrode carbon brush braid welding, in particular to an automatic pre-welding machine for welding a motor carbon brush braid.

Background

As important parts of automobiles, more and more various motors for automobiles are produced by using an automatic assembly machine in production and assembly, so that the automatic assembly machine can ensure smoother production in the process of assembling the motors, and higher requirements are put forward on the quality and size requirements of all parts forming the motors. For example, the overall dimension of a carbon brush, which is one of core components of the motor, and the welding quality of a braid head of the carbon brush play an important role in ensuring the assembly quality and the production fluency of the motor.

The traditional welding of the carbon brush braid is performed by a current type spot welding machine, one person has one machine, the energy consumption is high, the welding efficiency is extremely low, and the welding quality is related to the pedaling force of an operator, so that the welding quality of the braid can not be guaranteed.

The existing welding technology of the carbon brush of the motor mainly uses a current type spot welder to perform prewelding, and the main technical defects of the welding braid of the alternating current spot welder are as follows: in the welding process, the welding current passing through the brush braid is not constant, and in addition, because welding equipment is influenced by factors such as cooling water, the stability of ambient temperature and voltage, the strength of staff's foot pedal, the appearance of the brush braid head of the welded motor carbon brush braid can not be kept consistent, the oxidation of the brush braid head is very easily caused, and the quality of the following motor during the whole machine assembly has great hidden danger.

Disclosure of Invention

The invention aims to provide an automatic pre-welding machine for welding a carbon brush braid of a motor, which aims to solve the problems that in the prior art, the welding current passing through the carbon brush braid is not constant in the welding process, and in addition, because the welding equipment is influenced by factors such as cooling water, environment temperature, voltage stability, force of staff pedaling and the like, the appearance of the brush braid head of the welded carbon brush braid of the motor cannot be kept consistent, the brush braid head is easily oxidized, and the quality of the whole machine assembly of a following motor has great hidden danger.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic pre-welding machine for welding a brush braid of a motor carbon brush comprises an operation bench, wherein an indexing turntable is arranged in the middle of the upper surface of the operation bench, the edge of the upper surface of the indexing turntable is provided with material clamping plates at equal intervals, the right end of the upper surface of the operating rack is provided with a feeding vibration mechanism, the right side of the upper surface of the operating platform frame is provided with a feeding mechanism, the feeding end of the feeding mechanism is connected with a feeding vibration mechanism, the discharge end of the feeding mechanism corresponds to the material clamping plate on the indexing turntable, the front side in the upper surface of the operating table frame is provided with a wire straightening mechanism, the wire straightening mechanism is positioned at the lower side of the material clamping plate and corresponds to the material clamping plate, the left side of the upper surface of the operating bench is provided with a welding pressure mechanism, the rear side is provided with automatic row material mechanism in the upper surface of operation rack, automatic row material mechanism corresponds with material grip block position.

Preferably, the material clamping plate comprises a material clamping plate body, one end, close to the indexing turntable, of the material clamping plate body is connected with the indexing turntable through a screw, and a material clamping groove is formed in one end, far away from the indexing turntable, of the material clamping plate body.

Preferably, material loading vibration mechanism is including vibrations base, the upper surface of vibrations base is provided with material storage compartment, the left side wall intercommunication of material storage compartment has the discharging pipe, logical groove has been seted up at the lower surface middle part of discharging pipe, the left end of discharging pipe is corresponding with feed mechanism's position.

Preferably, feed mechanism includes the feeding base, the upper surface left side of feeding base is provided with first feed cylinder, the flexible end upside of first feed cylinder is connected with the striker plate, the upper surface right side of feeding base is provided with second feed cylinder, the flexible end left side of second feed cylinder is provided with the push rod, the striker plate includes the striker plate body, the groove of keeping in has been seted up to the lower surface of striker plate body, the striker plate body is located the left end of discharging pipe, the push rod is located the right side of striker plate body, the groove of keeping in corresponds with material grip block position.

Preferably, the wire straightening mechanism comprises a straightening air cylinder, a storage shell is fixedly mounted on the outer wall of the straightening air cylinder, a clamping groove is formed in the outer wall of the storage shell, the telescopic end of the straightening air cylinder is located on the inner wall of the storage shell and is connected with two lower clamping arms symmetrically arranged through a connecting shaft, the upper end of each lower clamping arm is connected with an upper clamping arm, and the lower clamping arm support is supported by a reset spring.

Preferably, the welding pressure mechanism includes the backup pad, the lower surface middle part fixedly connected with motor of backup pad goes up and down to drive actuating cylinder, the front and back side of the upper surface of backup pad is fixedly connected with negative pole respectively and drives actuating cylinder and anodal actuating cylinder that drives, the negative pole drives actuating cylinder and anodal drive actuating cylinder and looks at the flexible end of end and install welding negative electrode and welding positive electrode respectively, the side all is provided with the welding support ceramic plate around the upper surface middle part of backup pad.

Preferably, the automatic discharging mechanism comprises a positioning plate, a push-pull cylinder is arranged on the lower surface of the positioning plate, a longitudinal moving cylinder is connected to the front end of the push-pull cylinder, and a poking rod is connected to the bottom end of the longitudinal moving cylinder.

Compared with the prior art, the invention has the beneficial effects that:

1) the carbon brush braid can be used for physically shaping the braid and controlling the temperature of the welding head by constant current, so that the looseness and the cleanliness of the braid are obviously improved;

2) the welding pull-out force of the carbon brush braid is ensured to meet and exceed the specified requirements, and importantly, the stability and consistency of the pull-out force are obviously improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a material holding plate according to the present invention;

FIG. 3 is a schematic structural diagram of a feeding vibration mechanism according to the present invention;

FIG. 4 is a schematic structural view of a feeding mechanism of the present invention;

FIG. 5 is a schematic structural view of a striker plate of the present invention;

FIG. 6 is a schematic structural view of a wire straightening mechanism according to the present invention;

FIG. 7 is a schematic view of the welding pressure mechanism of the present invention;

FIG. 8 is a schematic structural view of an automatic discharge mechanism of the present invention;

FIG. 9 is a schematic circuit diagram of temperature control according to the present invention

In the figure: 1 operation rack, 2 index rotary table, 3 material clamping plates, 31 material clamping plate body, 32 material clamping grooves, 4 feeding vibration mechanism, 41 vibration base, 42 material storage bin, 43 discharge pipe, 44 through groove, 5 feeding mechanism, 51 feeding base, 52 first feeding cylinder, 53 material baffle plate, 531 material baffle plate body, 532 temporary storage groove, 54 second feeding cylinder, 55 push rod, 6 wire straightening mechanism, 61 straightening cylinder, 62 storage shell, 63 clamping groove, 64 lower clamping arm, 65 upper clamping arm, 7 welding pressure mechanism, 71 support plate, 72 motor lifting driving cylinder, 73 negative electrode driving cylinder, 74 positive electrode driving cylinder, 75 welding positive electrode, 76 welding negative electrode, 77 welding support ceramic plate, 8 automatic discharging mechanism, 81 positioning plate, 82 push-pull cylinder, 83 longitudinal moving cylinder and 84 poking rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.