A device for trimming carbon brushes after sintering

Abstract

The present invention relates to a device for trimming carbon brushes after sintering, comprising a horizontally arranged tray, wherein both ends of the tray are respectively connected to a base plate and a trimming assembly, the base plate is connected to a clamping portion, the carbon brush can be stably clamped by the clamping portion, the base plate can drive the carbon brush to move to contact with the trimming assembly, the trimming assembly is provided with a plurality of sawtooth bars, each of which includes a datum shaft connected to the sawtooth bar, the datum shaft is connected to a reciprocating power component, the reciprocating power component can make the sawtooth bar perform linear reciprocating motion, when the carbon brush contacts the sawtooth bar, the sawtooth bar will form a vertical or inclined notch on the carbon brush; the beneficial effect of the present invention is: the device forms a vertical or inclined notch on the carbon brush, thereby improving the heat dissipation efficiency, thereby reducing the working temperature of the carbon brush, and when the carbon brush contacts the commutator, it can better adapt to the unevenness of the commutator surface, increase the contact stability, improve the working efficiency of the carbon brush from many aspects, and extend its service life.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon brush processing, and in particular relates to a device for trimming carbon brushes after sintering. Background Art

[0002] Carbon brushes are a common motor accessory. They are usually installed on the commutator or slip ring of the motor as sliding contacts for conducting or importing current. During operation, the carbon brushes will contact the commutator or slip ring, resulting in the generation of electrical sparks. When the sparks are too large, they will damage the carbon brushes and commutator. Excessive sparks will also increase the operating temperature of the carbon brushes and commutator, causing local overheating, increased wear, and a reduction in the service life of the carbon brushes.

[0003] Currently, the above problem is usually solved by opening a notch in the carbon brush. Generally, the sintered carbon brush is held by hand, and then the end of the carbon brush is brought into contact with a cutting saw blade, while a thrust is applied to the carbon brush to form a feed, and finally a notch is formed in the carbon brush. However, when opening the carbon brush in the above manner, there is a danger to the operator, and processing the carbon brushes one by one is inefficient. Summary of the Invention

[0004] The object of the present invention is to provide a carbon brush trimming device which can cut carbon brushes in batches and form inclined cuts on a plurality of carbon brushes at the same time.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a device for trimming carbon brushes after sintering, comprising a horizontally arranged tray, the main structural features of which are that the two ends of the tray are respectively connected to a base plate and a trimming assembly, the base plate is connected to a clamping portion, the carbon brush can be stably clamped by the clamping portion, the base plate can drive the carbon brush to move to contact the trimming assembly, the trimming assembly is provided with a plurality of sawtooth bars, each of which includes a reference shaft connected to the sawtooth bar, the reference shaft is connected to a reciprocating power component, and the reciprocating power component can make the sawtooth bar perform linear reciprocating motion. The sawtooth bar is also connected to an angle adjustment component, which can drive multiple sawtooth bars to tilt and rotate synchronously at the same time. When the carbon brush contacts the sawtooth bar, the sawtooth bar will form a vertical or inclined notch on the carbon brush; the bottom base plate includes a lower base plate and an upper moving plate, and the lower base plate and the upper moving plate are connected by a lifting and pushing device. The clamping part is connected to the upper moving plate, and an alignment rod is provided above the clamped carbon brush; the alignment rod is aligned with the reference axis, and the lifting and pushing device can control the vertical movement of the upper moving plate to make the clamped carbon brush contact with the alignment rod, and then cut and trim the carbon brush.

[0006] Furthermore, a vertical plate is fixed on the pallet, the vertical plate is parallel to the back push plate, and the vertical plate and the back push plate are connected by an electric push rod, which can control the horizontal movement of the back push plate.

[0007] Furthermore, a positioning plate is fixedly connected to the end of the tray, and the positioning plate is vertically arranged to the tray. One end of the reference shaft is fixedly connected to the positioning plate, and the other end is movably connected to the sawtooth bar.

[0008] Furthermore, a rectangular opening is opened on the pallet, the sawtooth bar passes through the rectangular opening, and the reciprocating power component is connected to the upper end of the sawtooth bar and is located above the pallet.

[0009] Furthermore, the reciprocating power component includes a power element and a transmission frame, the transmission frame is fixed to the upper end of the sawtooth bar, and the output end of the power element is fixedly connected to the upper end of the transmission frame.

[0010] Furthermore, the power element can drive the sawtooth bar to perform linear reciprocating motion. The power element is connected to the swivel through a support frame. The swivel is sleeved on the reference shaft and can rotate around the reference shaft.

[0011] Furthermore, a through slot is provided at the lower end of the sawtooth bar, and an angle adjustment component is connected in the through slot. The angle adjustment component includes a U-shaped frame, and a single-link control is connected to the U-shaped frame.

[0012] Furthermore, a short shaft rod is fixedly connected between the two ends of the U-shaped frame. The short shaft rod passes through the through slot. Two limit blocks are sleeved on the short shaft rod. The two limit blocks are respectively located on both sides of the through slot.

[0013] Furthermore, the single-link control includes a single-link frame, one end of the single-link frame is movably connected to the U-shaped frame, and the other end is connected to a control rod, and the free end of the control rod passes through the positioning plate and can move within the positioning plate.

[0014] Compared with the prior art, the present invention has the following advantages: by providing an angle adjustment component, the sawtooth bar can not only cut and trim vertical notches of the carbon brush, but also cut and trim inclined notches of the carbon brush; at the same time, by movably connecting a reference axis to the sawtooth bar and providing an alignment rod aligned with the reference axis on the back push plate, before the carbon brush contacts the sawtooth bar, the high point A of the carbon brush to be cut is aligned and contacted with the alignment rod, and then the cutting and trimming is performed, which can ensure that the inclined notches formed on the carbon brush are not misaligned and can be cut and trimmed accurately; when the sawtooth bar tilts and flips, the reciprocating power component can flip synchronously with the sawtooth bar, ensuring that the sawtooth bar can always perform a linear reciprocating motion along its own length direction, thereby ensuring cutting and trimming efficiency;

[0015] The present invention forms a vertical or inclined notch on the carbon brush through the device, which can disperse the sparks generated between the carbon brush and the collector ring, avoiding damage to the carbon brush caused by excessive sparks. At the same time, the notch can reduce the contact area between the carbon brush and the commutator, improve the heat dissipation efficiency, and thus reduce the operating temperature of the carbon brush. Moreover, when the carbon brush contacts the commutator, it can better adapt to the unevenness of the commutator surface, increase the contact stability, and improve the working efficiency of the carbon brush in many aspects, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall top view of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the top view of the clamping assembly of the present invention;

[0018] Figure 3 This is a schematic diagram of the connection structure of the sawtooth bar, the reciprocating power component and the angle adjustment component of the present invention;

[0019] Figure 4 1 is a schematic top cross-sectional view of the connection structure between the reference shaft and the sawtooth bar of the present invention;

[0020] Figure 5 1 is a top cross-sectional schematic diagram of the connection structure between the angle adjustment component and the sawtooth bar of the present invention;

[0021] Figure 6 It is a right side schematic diagram of the connection structure between the positioning plate and the single-link control of the present invention;

[0022] Figure 7 Schematic diagram of the position of the high point A of the carbon brush marking of the present invention;

[0023] Figure 8 This is a schematic diagram of the main structure of the base substrate of the present invention;

[0024] Figure 9 This is a schematic diagram of the position structure of the sawtooth bar and the alignment rod in another embodiment of the present invention;

[0025] Among them, 1-tray, 2-clamping assembly, 3-cutting assembly, 4-bottom base plate, 5-slide, 6-slide groove, 7-longitudinal ear plate, 8-clamping rod, 9-clamping plate, 10-pushing assembly, 11-electric push rod, 12-back push plate, 13-vertical plate, 14-serrated bar, 15-positioning plate, 16-rectangular strip opening, 17-angle adjustment component, 18-reciprocating power component, 19-reference axis, 20-plate shifting slot, 21-rotating head, 22-notch , 23-stabilizing slide plate, 24-through slot, 25-U-shaped frame, 26-short axis rod, 27-limiting block, 28-single control, 29-single frame, 30-control lever, 31-translation strip, 32-force handle, 33-power element, 34-transmission frame, 35-support frame, 36-swivel, 37-alignment rod, 38-lower base plate, 39-upper plate, 40-flat sleeve, 41-lifting device, 42-sliding plate, 43-limiting column. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is sought, but merely represents selected embodiments of the present application.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections; electrical connections; hydraulic connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0028] See Figures 1 to 2 As shown, a device for trimming carbon brushes after sintering includes a horizontally arranged tray 1, the lower surface of the tray 1 is connected to a support arm, the support arm serves as a horizontal support for the tray 1, and a clamping component 2 and a trimming component 3 are connected to the tray 1, the clamping component 2 and the trimming component 3 are respectively arranged at both ends of the tray 1, the sintered carbon brush can be placed in the clamping component 2 and stably clamped by the clamping component 2, the clamping component 2 can slide along the length direction of the tray 1 toward the trimming component 3 until it contacts the trimming component 3, the trimming component 3 will trim the carbon brush on the clamping component 2, and form a notch on the carbon brush. The carbon brush with the notch is installed in the motor, which can disperse the sparks generated during the operation of the motor, increase the ventilation of the contact surface between the carbon brush and the commutator, and improve the heat dissipation speed, thereby optimizing the performance of the motor and improving the working efficiency of the motor.

[0029] The above-mentioned clamping assembly 2 is located at one end of the tray 1, which can slide on the tray 1. The clamping assembly 2 includes a base plate 4 and a clamping portion. The clamping portion is connected to the upper surface of the base plate 4. The carbon brush can be placed in the clamping portion. The clamping portion can stably clamp the carbon brush. At the same time, the base plate 4 supports the stably clamped carbon brush. The lower surface of the base plate 4 is symmetrically provided with a slide 5. The slide 5 is fixedly connected to the base plate 4. At this time, a slide groove 6 corresponding to the slide 5 is provided on the tray 1. The slide groove 6 is along the tray 1 extends horizontally in the longitudinal direction, the slide 5 is fitted in the slide groove 6 and can drive the base plate 4 to slide along the slide groove 6, thereby driving the stably clamped carbon brush to move synchronously, the cutting and trimming assembly 3 is located on the moving path of the stably clamped carbon brush, both ends of the slide groove 6 are closed and the slide 5 cannot be separated from the slide groove 6. Here, the end of the slide groove 6 away from the cutting and trimming assembly 3 is defined as the starting end of the slide groove 6, and the end of the slide groove 6 close to the cutting and trimming assembly 3 is defined as the ending end of the slide groove 6. In the initial state, the slide 5 is located at the starting end of the slide groove 6;

[0030] The specific structure of the clamping part stably clamping the carbon brush is as follows: the clamping part includes two symmetrically arranged longitudinal ear plates 7, the two longitudinal ear plates 7 are respectively located at the two ends of the bottom base plate 4, and each longitudinal ear plate 7 is threadedly connected to a clamping rod 8, one end of the clamping rod 8 is located between the two longitudinal ear plates 7 and connected to a clamping plate 9, and the carbon brush is placed between the two clamping plates 9, and the other end of the clamping rod 8 vertically penetrates the longitudinal ear plate 7 on the corresponding side and is connected to a gripping disc. Rotating the gripping disc can drive the corresponding clamping rod 8 to move horizontally in the longitudinal ear plate 7, and also drive the two clamping plates 9 to move closer to or away from each other. When the two clamping plates 9 approach each other, they will contact the carbon brush and stably clamp the carbon brush. When the two clamping plates 9 move away from each other, the stable clamping of the carbon brush is cancelled;

[0031] In order to facilitate the control of the movement of the clamping assembly 2 along the slide groove 6, the pushing assembly 10 is connected to the clamping assembly 2, and the pushing assembly 10 includes an electric push rod 11 and a back push plate 12. The back push plate 12 is vertically fixed on the base plate 4, and the vertical plate 13 is fixed on the tray 1. The vertical plate 13 is arranged parallel to the back push plate 12. The electric push rod 11 is vertically fixed on the vertical plate 13, and the power rod of the electric push rod 11 extends horizontally to be fixed with the back push plate 12. Then, by controlling the electric push rod 11 to drive the back push plate 12 to move, the entire clamping assembly 2 can drive the movement of the carbon brush.

[0032] The electric push rod 11 drives the clamping assembly 2 and the stably clamped carbon brush to move along the slide 6 until the stably clamped carbon brush on the clamping assembly 2 contacts the cutting assembly 3, and the cutting assembly 3 forms a notch on the carbon brush. The cutting assembly 3 can be set to multiple, and each cutting assembly 3 has the same structure. The number of cutting assemblies 3 is consistent with the number of carbon brushes that need to be cut. The cutting assembly 3 includes a sawtooth bar 14, which can perform linear reciprocating motion and can adjust the angle to cut a notch in the corresponding carbon brush. When placing the carbon brush on the clamping assembly 2, multiple carbon brushes need to be arranged horizontally in a row, and each carbon brush corresponds to a sawtooth bar 14. These multiple sawtooth bars 14 can move synchronously and can be tilted synchronously, so as to achieve simultaneous cutting of multiple carbon brushes at one time and form the same notch. Specifically:

[0033] See Figures 3 to 7 As shown, a positioning plate 15 is fixedly connected to the end of the tray 1 near the cutting and trimming component 3. The positioning plate 15 is arranged perpendicular to the tray 1. A rectangular strip opening 16 is opened on the tray 1. The rectangular strip opening 16 vertically penetrates the tray 1. In the initial state, the sawtooth bars 14 are all in a vertical state and pass vertically through the rectangular strip opening 16. The lower end of each sawtooth bar 14 is located below the tray 1 and is connected to an angle adjustment component 17. The horizontal movement of the angle adjustment component 17 will drive the sawtooth bar 14 to tilt. The upper end of each sawtooth bar 14 is located above the tray 1 and is connected to a reciprocating The power component 18 and the reciprocating power component 18 are always located in the same plane as the sawtooth bar 14. At the same time, a reference shaft 19 is connected to each sawtooth bar 14. One end of the reference shaft 19 is fixed to the positioning plate 15, and the other end is a free end and movably connected to the sawtooth bar 14. Each reciprocating power component 18 is movably connected to its own reference shaft 19. When each angle adjustment component 17 is controlled to move horizontally, the upper and lower ends of the sawtooth bar 14 will flip around the reference shaft 19, and the reciprocating power component 18 will flip along with the upper end of the sawtooth bar 14. Specifically:

[0034] A plate shifting slot 20 is provided on the sawtooth bar 14, and the plate shifting slot 20 passes through the sawtooth bar 14 horizontally and extends vertically along the length direction of the sawtooth bar 14. The free end of the reference shaft 19 is connected to a rotating head 21, and the rotating head 21 can rotate around the reference shaft 19. A notch 22 is provided on the rotating head 21, and the sawtooth bar 14 passes vertically through the notch 22. At the same time, a stabilizing slide 23 is provided in the plate shifting slot 20. The two ends of the stabilizing slide 23 extend from the plate shifting slot 20 and are fixed on the two opposite inner side walls of the notch 22. At this time, a through slot 24 is provided at the lower end of the sawtooth bar 14, and the angle adjustment component 17 is connected in the through slot 24. The angle adjustment component 17 includes a U-shaped frame 25, and the U-shaped frame A short shaft 26 is fixedly connected between the two ends of 25. The short shaft 26 passes through the through slot 24. Two limit blocks 27 are sleeved on the short shaft 26. The two limit blocks 27 are respectively located on both sides of the through slot 24, that is, the sawtooth bar is located between the two limit blocks, and the limit blocks 27 limit the sawtooth bar 14. Since there are multiple cutting and trimming components, the same number of U-shaped frames 25 are docked at the lower ends of the corresponding sawtooth bars. At this time, all the U-shaped frames 25 are connected together by a single-link control 28. By controlling the horizontal movement of the single-link control 28, all the angle adjustment components 17 can be controlled to move horizontally, thereby achieving simultaneous angle adjustment of all the sawtooth bars 14.

[0035] The single-link control 28 includes a single-link frame 29 and a control rod 30. One end of the single-link frame 29 is movably connected to all the U-shaped frames 25, and the other end of the single-link frame 29 is fixed to the control rod 30. The single-link frame 29 is a "mountain"-shaped frame. The free end of the control rod 30 is connected to the positioning plate 15. At this time, a translation strip opening 31 is opened at the lower end of the positioning plate 15. The free end of the control rod 30 passes through the translation strip opening 31 and is connected to a force-applying handle 32. A sliding plate 42 located in the translation strip opening 31 is provided on the control rod 30. Two limit columns 43 are symmetrically fixed on the sliding plate 42. When located in the translation strip opening 31, the positioning plate 15 is located between the two limit columns 43, and the translation strip opening 31 is water-proof. In the flat state, the control rod 30 can move horizontally along the length direction of the translation strip opening 31 in the translation strip opening 31. When the angle of the serrated bar 14 needs to be adjusted, the control rod 30 is driven to move in the translation strip opening 31 by applying a thrust to the force handle 32, thereby driving the U-shaped frame 25 to move horizontally. At the same time, the short shaft rod 26 slides in the through slot 24, and the stabilizing slide plate 23 slides in the plate shifting slot 20. The serrated bar 14 flips over, driving the rotating head 21 to rotate. During this process, the limit block 27 always remains parallel to the serrated bar 14, limiting the serrated bar 14 to ensure that the linear reciprocating motion of the serrated bar 14 is not affected, thereby realizing the angle adjustment of the serrated bar 14.

[0036] When the reciprocating power component 18 controls the sawtooth bar 14 to move back and forth in a straight line, the stabilizing slide plate 23 slides in the plate moving slot 20, and the short shaft rod 26 slides in the through slot 24. During this process, the horizontal height of the reference shaft 19 and the angle adjustment component 17 does not change. The reciprocating power component 18 includes a power element 33 and a transmission frame 34. The transmission frame 34 is fixed to the upper end of the sawtooth bar 14. The output end of the power element 33 is fixedly connected to the upper end of the transmission frame 34. The power element 33 can be any power element as long as it can perform linear reciprocating motion, such as a telescopic cylinder, an electric telescopic rod, etc. The power element 33 It is connected to the reference shaft 19 through the support frame 35. At this time, a swivel 36 is mounted on the reference shaft 19. The swivel 36 can rotate around the reference shaft 19. The lower end of the support frame 35 is fixedly connected to the swivel 36, and the upper end of the support frame 35 is fixed to the power element 33. Then, when the angle of the sawtooth bar 14 is adjusted to an inclined state, the sawtooth bar 14 will flip over and drive the power element 33 to flip synchronously. At this time, the swivel 36 connected to the support frame 35 will also flip over, but the power element 33 and the sawtooth bar 14 are still in the same plane, and will not affect the linear reciprocating motion of the sawtooth bar 14.

[0037] In order to facilitate accurate trimming of the carbon brush, an alignment rod 37 is set on the back push plate 12, and the alignment rod 37 is set to be aligned with any reference axis 19, and the alignment rod 37 is fixed on the back push plate 12, and the alignment rod 37 is located above the clamped carbon brush. At the same time, a line mark is made on the part of the carbon brush that needs to be trimmed. When the notch to be formed by the carbon brush is in a vertical state, the position of the carbon brush placed horizontally between the two clamping plates 9 is adjusted by screwing the clamping rods 8 on both sides until the vertical line mark on any carbon brush is in the same vertical plane with the alignment rod 37, and then the electric push rod 11 is controlled to move the clamping assembly 2 until the carbon brush contacts the trimming assembly 3 to complete the trimming of the carbon brush; when the notch to be formed by the carbon brush is in an inclined state, first move the carbon brush on the bottom substrate 4 upward Until it contacts the alignment rod 37, and then by translating the carbon brush, the high point A of the inclined scribe mark on any carbon brush is in the same vertical plane as the alignment rod 37, and then the carbon brush is clamped and positioned by the clamping rod 8, and then the single-link control 28 is pushed to flip the sawtooth bar 14 to an inclined state, and then the electric push rod 11 is controlled to drive the clamping assembly 2 and the carbon brush to move to contact with the cutting and trimming assembly 3. If the contact position of the carbon brush and the sawtooth bar 14 coincides with the scribe mark on the carbon brush at this time, the sawtooth bar can be controlled to reciprocate, and then the carbon brush can be pushed to move, so that the carbon brush forms an inclined notch. Otherwise, the notch formed on the carbon brush by the cutting and trimming assembly 3 is only parallel to the required notch, but the position will be staggered; the specific structure of moving the carbon brush on the bottom substrate 4 upward to contact with the alignment rod 37 is as follows:

[0038] See Figure 8As shown, the bottom substrate 4 is set as a double-layer plate, including a lower substrate 38 below and an upper moving plate 39 above. The upper moving plate 39 does not completely cover the lower substrate 38. The back push plate 12 is fixed on the lower substrate 38, and the clamping assembly 2 is connected to the upper moving plate 39. The carbon brush is also stably clamped by the clamping assembly 2 on the upper moving plate 39. The upper moving plate 39 and the lower substrate 38 are connected by a lifting device 41. The lifting device 41 can control the horizontal height of the upper moving plate 39 to change. The lifting device 41 can have the same structure as the above-mentioned power element 33, or it can adopt other power mechanisms with telescopic function. Its main function is to control the vertical movement of the upper moving plate. The power element 33 can control the vertical movement of the upper moving plate 39 until the carbon brush on the upper moving plate 39 contacts the alignment rod 37. Such a setting can form an inclined notch in the carbon brush and can make the device suitable for carbon brushes of different thicknesses.

[0039] When in use, first place multiple carbon brushes horizontally on the upper moving plate 39, then control the upper moving plate to move upward, and then translate the carbon brushes on the upper moving plate 39 until the high point A marked with the line on the carbon brush is completely aligned with and in contact with the alignment rod 37. At this time, the carbon brushes on both sides are stably clamped by the clamping part, and then all the carbon brushes are stably clamped. Then the angle of the serrated bar 14 can be adjusted by pushing the force handle 32. After the angle is adjusted appropriately, the power element 33 is controlled to drive the serrated bar 14 to perform a linear reciprocating motion, and then the electric push rod 11 is controlled to drive the entire clamping assembly 2 to move toward the serrated bar 14 until the carbon brush contacts the serrated bar 14 and the required notch is formed on the carbon brush. Then the electric push rod 11 is controlled to drive the entire clamping assembly 2 to move away from the serrated bar 14, so that the carbon brush is completely separated from the serrated bar 14, the clamping of the carbon brush is canceled, and the carbon brush can be removed.

[0040] See Figure 9As shown, in another embodiment of the present invention, the structural arrangement of the stabilizing slide plate 23 and the plate shifting notch 20 is cancelled, and the reference shaft 19 is still fixedly connected to the positioning plate 15. At this time, the flat sleeve 40 is movably connected to the free end of the reference shaft 19, and the serrated bar 14 passes vertically through the flat sleeve 40. When the serrated bar 14 tilts at an angle, the flat sleeve 40 tilts accordingly, but does not drive the reference shaft 19 to rotate. The reference shaft 19 remains stationary, and the alignment rod 37 is fixed to the flat sleeve 40. The alignment rod 37 extends horizontally in the direction of the clamping assembly 2, and the alignment rod 37 and the reference shaft 19 are still at the same horizontal height and And it is completely aligned, then when trimming the carbon brush, first the clamping assembly 2 will stably clamp the carbon brush and control the electric push rod 11 to drive the clamping assembly 2 to move toward the serrated bar 14, and stop moving before contacting the serrated bar 14. At this time, the alignment rod 37 is above the clamping assembly 2, and the upper plate 39 is moved vertically to make the carbon brush contact with the alignment rod 37, and then the clamping rod 8 is screwed to adjust the position of the carbon brush so that the high point A of the line mark on the carbon brush is aligned with the alignment rod 37, and then the electric push rod 11 is continued to be controlled to drive the clamping assembly 2 to move so that the aligned carbon brush contacts the serrated bar 14, forming a gap in the carbon brush.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based primarily on the scope of protection of the claims.

Claims

1. A device for trimming carbon brushes after sintering, comprising a horizontally arranged tray, characterized in that: The two ends of the tray are respectively connected to a base plate and a cutting and trimming assembly, the base plate is connected to a clamping part, the carbon brush can be stably clamped by the clamping part, the base plate can drive the carbon brush to move to contact with the cutting and trimming assembly, the cutting and trimming assembly is provided with a plurality of sawtooth bars, each of which includes a sawtooth bar, a reference shaft is connected to the sawtooth bar, a reciprocating power component is connected to the reference shaft, the reciprocating power component can make the sawtooth bar reciprocate in a straight line, and an angle adjustment component is also connected to the sawtooth bar, the angle adjustment component can simultaneously drive the sawtooth bars on multiple cutting and trimming assemblies to tilt synchronously, and when the carbon brush contacts the sawtooth bar, the sawtooth bar will form a notch on the carbon brush; The bottom base plate includes a lower base plate and an upper moving plate. The lower base plate and the upper moving plate are connected by a lifting device. The clamping part is connected to the upper moving plate. An alignment rod is provided above the clamped carbon brush. The alignment rod and the reference axis are located on the same horizontal straight line, and the lifting and pushing device can control the vertical movement of the upper moving plate to make the clamped carbon brush contact with the alignment rod.

2. The device for trimming carbon brushes after sintering according to claim 1, characterized in that: A vertical plate is fixed on the tray, and a back push plate is provided on the lower base plate. The vertical plate is parallel to the back push plate and is connected to the back push plate through an electric push rod. The electric push rod can control the horizontal movement of the back push plate.

3. The device for trimming carbon brushes after sintering according to claim 2, characterized in that: The end of the tray is fixedly connected with a positioning plate, which is arranged vertically to the tray. One end of the reference shaft is fixedly connected to the positioning plate, and the other end is movably connected to the sawtooth bar.

4. A device for trimming carbon brushes after sintering according to claim 1 or 3, characterized in that: The tray is provided with a rectangular strip opening, the sawtooth strip passes through the rectangular strip opening, and the reciprocating power component is connected to the upper end of the sawtooth strip and is located above the tray.

5. The device for trimming carbon brushes after sintering according to claim 4, characterized in that: The reciprocating power component comprises a power element and a transmission frame. The transmission frame is fixed to the upper end of the sawtooth bar, and the output end of the power element is fixedly connected to the upper end of the transmission frame.

6. The device for trimming carbon brushes after sintering according to claim 5, characterized in that: The power element is connected to the rotating ring through a supporting frame. The rotating ring is sleeved on the reference shaft and can rotate around the reference shaft.

7. The device for trimming carbon brushes after sintering according to claim 6, characterized in that: A through slot is formed at the lower end of the sawtooth bar, and an angle adjustment component is connected in the through slot. The angle adjustment component comprises a U-shaped frame, and a single-link control is connected to the U-shaped frame.

8. The device for trimming carbon brushes after sintering according to claim 7, characterized in that: A short shaft rod is fixedly connected between the two ends of the U-shaped frame. The short shaft rod passes through the through slot. Two limit blocks are sleeved on the short shaft rod. The sawtooth bar is located between the two limit blocks.

9. The device for trimming carbon brushes after sintering according to claim 7, characterized in that: The single-link control comprises a single-link frame, one end of which is movably connected to the U-shaped frame, and the other end is connected to a control rod, the free end of the control rod passes through the positioning plate and can move inside the positioning plate.

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