CN210648981U

CN210648981U - Automatic pre-welding machine for welding brush braid of motor carbon brush

Info

Publication number: CN210648981U
Application number: CN201921816846.7U
Authority: CN
Inventors: 周强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-06-02
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a belong to electrode carbon brush pigtail welding technical field, specifically be an automatic pre-welding machine is used in welding of motor carbon brush pigtail, including the operation rack, the upper surface middle part of operation rack is provided with the graduation carousel, the upper surface edge equidistance of graduation carousel is provided with the material grip block, the upper surface right-hand member of operation rack is provided with material loading vibration mechanism, the upper surface right side of operation rack is provided with feed mechanism, feed end and the material loading vibration mechanism of feed mechanism are connected, the discharge end of feed mechanism corresponds with the material grip block on the graduation carousel, the front side is provided with reason line straightening mechanism in the upper surface of operation rack, because carbon brush pigtail to the physical plastic of brush and the control of constant current butt weld head temperature, no matter from looseness and cleanliness of brush pigtail have obvious improvement; 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.

Description

Automatic pre-welding machine for welding brush braid of motor carbon brush

Technical Field

The utility model relates to an electrode carbon brush braid welding technical field specifically is an automatic pre-welding machine is used in welding of 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.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic pre-welding machine is used in welding of motor carbon brush braid, with the welding technology of the current motor carbon brush who proposes in solving above-mentioned background art, in welding process, welding current through the brush braid is invariable, in addition because welding equipment receives cooling water, ambient temperature, the stability of voltage, staff's pedal dynamics etc. factor influence, the motor carbon brush braid that welds out, the unable unanimity that keeps of appearance of its brush braid head, very easily cause the oxidation of brush braid head, there is the problem of great hidden danger in the quality when causing the whole machine-assembling of back end motor.

In order to achieve the above object, the utility model provides a 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 beneficial effects of the utility model are 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 the material holding plate of the present invention;

fig. 3 is a schematic structural view of the feeding vibration mechanism of the present invention;

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

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

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

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

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

FIG. 9 is a schematic circuit diagram of the temperature control of 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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, and are only for convenience of description and simplicity of 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 therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1, the present invention provides a technical solution: an automatic pre-welding machine for welding a brush braid of a motor carbon brush comprises an operation rack 1, wherein an indexing turntable 2 is arranged in the middle of the upper surface of the operation rack 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 operation rack 1, a feeding mechanism 5 is arranged on the right side of the upper surface of the operation rack 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 operation rack 1, the wire straightening mechanism 6 is positioned on the lower side of the material clamping plates 3 and corresponds to the positions of the material clamping plates 3, a welding pressure mechanism 7 is arranged on the left side of the upper surface of the operation rack 1, and an automatic discharging mechanism 8 is arranged, the automatic discharging mechanism 8 corresponds to the material clamping plate 3.

Referring to fig. 1 and 2, the material clamping plate 3 includes a material clamping plate body 31, one end of the material clamping plate body 31 close to the indexing turntable 2 is connected to the indexing turntable 2 through a screw, and one end of the material clamping plate body 31 far from the indexing turntable 2 is provided with a material clamping groove 32.

Referring to fig. 1 and 3, the feeding vibration mechanism 4 includes a vibration base 41, a material storage bin 42 is disposed on an upper surface of the vibration base 41, a discharge pipe 43 is connected to a left side wall of the material storage bin 42, a through groove 44 is disposed in a middle portion of a lower surface of the discharge pipe 43, and a left end of the discharge pipe 43 corresponds to the position of the feeding mechanism 5.

Please refer to fig. 1, 4, 5, the feeding mechanism 5 includes a feeding base 51, a first feeding cylinder 52 is disposed on the left side of the upper surface of the feeding base 51, a striker plate 53 is connected to the upper side of the telescopic end of the first feeding cylinder 52, a second feeding cylinder 54 is disposed on the right side of the upper surface of the feeding base 51, a push rod 55 is disposed on the left side of the telescopic end of the second feeding cylinder 54, the striker plate 53 includes a striker plate body 531, a temporary storage groove 532 is disposed on the lower surface of the striker plate body 531, the striker plate body 531 is located at the left end of the discharge pipe 43, the push rod 55 is located on the right side of the striker plate body 531, and the temporary storage groove 532 corresponds to the.

Referring to fig. 1 and 6, the wire straightening mechanism 6 includes a straightening cylinder 61, a receiving housing 62 is fixedly mounted on an outer wall of the straightening cylinder 61, a clamping slot 63 is formed in the outer wall of the receiving housing 62, a telescopic end of the straightening cylinder 61 is located on an inner wall of the receiving housing 62 and is connected with two lower clamping arms 64 symmetrically arranged through a connecting shaft, an upper clamping arm 65 is connected to an upper end of the lower clamping arm 64, and two lower clamping arms 64 are supported by a reset spring.

Referring to fig. 1 and 7, the welding pressure mechanism 7 includes a supporting plate 71, a motor lifting driving cylinder 72 is fixedly connected to the middle of the lower surface of the supporting plate 71, a negative driving cylinder 73 and a positive driving cylinder 74 are respectively fixedly connected to the front and rear sides of the upper surface of the supporting plate 71, a welding negative electrode 76 and a welding positive electrode 75 are respectively mounted on the telescopic ends of the viewing ends of the negative driving cylinder 73 and the positive driving cylinder 74, and welding supporting ceramic plates 77 are respectively disposed on the front and rear sides of the middle of the upper surface of the supporting plate 71.

Referring to fig. 1 and 8, the automatic discharging mechanism 8 includes a positioning plate 81, a push-pull cylinder 82 is disposed on a lower surface of the positioning plate 81, a longitudinal moving cylinder 83 is connected to a front end of the push-pull cylinder 82, and a toggle rod 84 is connected to a bottom end of the longitudinal moving cylinder 83.

The two temperature sensing elements are respectively arranged at the upper cooling water and the lower cooling water of the welding head contact, and when the currents received by the temperature sensing elements VD1 and VD2 are changed, the working state of the triode VT1 is triggered by using an electronic technology, so that the output of the two comparators A1 and A2 is determined, the magnitude of the output current is changed, the temperature of the welding head is adjusted, and the prewelding smoothness of a brush braid is ensured (the circuit of the prewelding head is shown in figure 9).

The working principle is as follows: storing materials in a material storage bin 42 in advance, vibrating a vibration base 41 to drive the material storage bin 42 to vibrate, and under the action of vibration, enabling the materials to enter a discharge pipe 43 through an outlet at the joint of the material storage bin 42 and the discharge pipe 43, enabling a brush braid of the materials to penetrate through a through groove 44 to droop, and conveying the materials through the discharge pipe 43;

the material is transmitted to the left side wall of the striker plate 53 through the left end of the discharge pipe 43 and blocked by the striker plate 53, the first feeding cylinder 52 drives the striker plate body 531 to move, so that the temporary storage groove 532 corresponds to the outlet of the discharge pipe 43, the material is clamped into the temporary storage groove 532 under the extrusion action between the materials, then the first feeding cylinder 52 retracts the striker plate 53, the rear end of the striker plate body 531 still blocks the outlet of the discharge pipe 43 at the moment, when the temporary storage groove 532 is transmitted to the position of the push rod 55, the material clamping plate 3 just moves to the corresponding position at the moment, and the second feeding cylinder 54 extends, pushes out the material in the temporary storage groove 532 through the push rod 55 and clamps the material clamping groove 32;

the material clamping plate 3 rotates along with the rotation of the index rotary table 2, when the material clamping plate rotates to the wire straightening mechanism 6, the telescopic end of the straightening air cylinder 61 descends to enable the lower clamping arms 64 to retract into the containing shell 62, the lower clamping arms 64 on the two sides are closed under the action of the clamping groove 63, the braid of the motor carbon brush is clamped and pulled down through the upper clamping arms 65, the braid of the motor carbon brush is pulled down and carded, then the straightening air cylinder 61 drives the lower clamping arms 64 to ascend, and the lower clamping arms 64 on the two sides are separated under the action of the reset spring;

when the motor carbon brush is driven by the indexing turntable 2 to move to the position of the welding pressure mechanism 7, the motor lifting driving cylinder 72 pushes the supporting plate 71 upwards, the negative electrode driving cylinder 73 and the positive electrode driving cylinder 74 draw the welding positive electrode 75 and the welding negative electrode 76 together to weld the braid of the motor carbon brush, and the shape of the braid of the motor carbon brush is kept by the welding supporting ceramic plate 77;

the welded motor carbon brush moves to the position of the automatic discharging mechanism 8 under the rotation action of the indexing turntable 2, the push-pull cylinder 82 pushes the longitudinal moving cylinder 83 and the poking rod 84 outwards, the longitudinal moving cylinder 83 pushes the poking rod 84 downwards to descend, a groove body matched with the poking rod 84 is arranged at the position of the material clamping groove 32, the poking rod 84 descends and is clamped into the groove body, the push-pull cylinder 82 pulls back to pull the longitudinal moving cylinder 83 and the poking rod 84 back, the poking rod 84 scrapes the welded motor carbon brush from the material clamping plate 3, and then the longitudinal moving cylinder 83 drives the poking rod 84 to ascend and reset.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

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).