Gantry type conductive slip ring brush wire angle forming device and method

Abstract

The invention provides a gantry type conductive slip ring brush wire angle forming device and method. The gantry type conductive slip ring brush wire angle forming device comprises a bending base, a motor driving device, a ball screw transmission mechanism, a symmetrical bending connecting rod mechanism, a gantry type fixing rack, a main linear sliding table and a control system. A vertical motor drives a ball screw transmission mechanism, so that a linear platform on the ball screw transmission mechanism slides up and down, a connecting rod at the lower end of a bending connecting rod mechanism is driven to rotate around the bending direction of brush wires, and a row of brush wires on the left and right sides are symmetrically bent. The connecting rod mechanism and the transmission mechanism are fixed to the bending base and hoisted to the gantry rack. The main linear sliding table transports the brush wire base to move front and back, the bending mechanism continuously bends multiple rows of brush wires, and finally machining is completed. The device is high in bending precision, good in consistency and high in automation degree, and can effectively solve the practical problems in the current conductive slip ring brush wire angle forming mainly based on manual bending.

Description

Technical Field

[0001] This invention relates to the field of conductive slip ring manufacturing technology, specifically to a gantry-type conductive slip ring brush filament angle forming device and method. Background Technology

[0002] In recent years, my country has significantly increased the lifespan requirements for its spacecraft: low Earth orbit satellites have increased from 2-3 years to 5-8 years, geostationary orbit satellites from 8 years to more than 15 years, and space stations are required to serve for more than 15 years.

[0003] Space conductive slip rings are precision electrical transmission mechanisms that enable power and signal transmission between two relatively rotating bodies. They are widely used in aerospace electromechanical fields such as spacecraft stabilization turntables, inertial navigation equipment, radar systems, weapon launch control systems, and global positioning systems. Abnormal slip ring operation can affect the normal transmission of signals and current, leading to power supply failures for the entire satellite or even mission failure; they are the "lifeline" of spacecraft.

[0004] The contact state between the conductive slip ring and the brush filaments (referred to as "slip ring brush") directly determines the stability of the contact resistance and the wear condition, which are key indicators of service reliability, stability, and lifespan. Currently, there have been many cases of on-orbit failures of conductive slip rings due to deterioration in slip ring brush matching, both domestically and internationally. These failures can range from minor energy loss to complete power supply loss, directly impacting the success or failure of spacecraft on-orbit missions.

[0005] Current technical requirements for conductive slip rings are gradually moving towards "zero wear and zero maintenance," which necessitates precise control of the brush filament bending angle and contact pressure. Controlling the brush filament bending angle, by stabilizing the contact pressure within the optimal range, can improve current transmission quality and enhance the reliability and stability of spacecraft operation. However, in the current manufacturing of conductive slip rings, especially in the brush filament bending process, problems such as poor bending consistency and low efficiency of manual bending still exist. The brush filament angle forming process has become a core bottleneck affecting slip ring performance and reliable service.

[0006] According to literature review: Wang Kailong invented an adjustable brush bristle bending device for conductive slip rings, which clamps the brush bristles with a bending plate and a central mold that incorporates springback allowance, achieving one-time bending and forming of the brush bristles, improving bending efficiency and avoiding the problem of non-parallelism on both sides of the brush bristles in traditional bending; Yang Yunlong et al. invented a convenient adjustable brush bristle bending device, which uses an electric telescopic push rod for power supply, and rollers to drive the rod to move, so that the bending mechanism can bend the brush bristles. The structure is simple and has a wide range of applications; Liu Xihui et al. invented an automatic bending and shaping device for conductive slip ring brush bristles, which sets a baffle in the middle of the brush bristles and bending plates on both sides to achieve automated secondary bending, and automatically controls multiple bending and shaping by combining springback analysis.

[0007] The aforementioned research on dedicated brush bristle bending devices is mostly in the conceptual design stage and has not yet been put into global production of conductive slip ring brush bristle bending. Some devices combine primary and secondary bending to improve efficiency and achieve one-time forming after bristle feeding; some devices can be used for brush bristle bending in other equipment, but their processing precision requirements differ from those of conductive slip ring brush bristles; some devices are suitable for processing inwardly bent brush bristles. Based on the processing principles and automation schemes of the aforementioned devices and research, and combined with the secondary bending and outward angle forming requirements of brush bristles in production, this invention proposes a novel automated brush bristle bending and angle forming module.

[0008] Patent document CN117895304B discloses an integrated device for conductive slip ring brush bristle forming and deformation detection. It uses a two-axis linear motion mechanism and a brush bristle positioning groove to drive the brush bristle end to bend and achieve angle forming. However, the drive mechanism in this patent document is relatively large, and the force on the brush bristles is uneven, resulting in large local deformation and low consistency in the brush bristle bending process.

[0009] Patent document CN210326444U discloses a conductive slip ring brush filament angle forming device, which uses an electric displacement guide rail and a precision rotary control console in coordination. A triangular contact head fixed on the precision rotary table and in contact with the brush filament achieves angle forming. The disadvantages of this device configuration are that the brush filaments on both sides need to be re-clamped after processing, resulting in low processing efficiency. In addition, the slender connecting rod has high bending yield after connecting to the contact head, resulting in insufficient rigidity of the bending mechanism and affecting the accuracy of the bending angle.

[0010] Patent document CN117526043A discloses an automatic bending and shaping device for conductive slip ring brush filaments. This device uses a left and right extrusion plate to simultaneously press the brush filaments towards the center until they are tangent to the metal baffle on the brush filament assembly. Its disadvantage is that, because the size of the metal baffle is fixed, the bending angle of the brush filaments cannot be freely adjusted, thus limiting the adaptability of the brush filament bending process. Summary of the Invention

[0011] To address the shortcomings of existing technologies, the present invention aims to provide a gantry-type conductive slip ring brush filament angle forming device and method.

[0012] A gantry-type conductive slip ring brush filament angle forming device according to the present invention includes: a bending mechanism, a main linear slide, and a loading platform; The loading platform is installed on the movable part of the main linear slide, and the mounting surface of the loading platform is set towards the bending mechanism. The mounting surface of the loading platform is used to support the brush assembly. The bristles of the bristle assembly are arranged in two columns along the X-axis, and the two columns of bristles are arranged along the Y-axis. The bending mechanism includes: a third link and a fourth link; The third and fourth links can tilt outwards symmetrically and synchronously in the Y-axis direction, thereby pushing the bristles to bend. The main linear slide is used to drive the loading platform to reciprocate along the X-axis, so that the different brush filaments arranged in the X-axis direction can be aligned one by one with the third and fourth links for bending.

[0013] Preferably, it further includes: a bending drive mechanism, the bending drive mechanism having a linear sliding platform capable of reciprocating along the Z-axis direction; The third and fourth links have an initial position and a bending position; The third link is connected to the linear sliding platform via the first link, and the fourth link is connected to the linear sliding platform via the second link. The bending drive mechanism drives the third and fourth links to switch between the initial position and the bending position through the reciprocating movement of the linear sliding platform.

[0014] Preferably, it further includes: a bending base; An auxiliary guide rail extending along the Z-axis is fixedly mounted on the bending base, and the linear sliding platform is slidably connected to the auxiliary guide rail; The bending base is also equipped with a ball screw extending along the Z-axis. The linear sliding platform is screwed to the ball screw, and the end of the ball screw is connected to the rotation output shaft of the motor. The motor drives the ball screw to rotate back and forth, and then drives the linear sliding platform to move back and forth along the Z-axis.

[0015] Preferably, it also includes: a gantry frame; The gantry frame includes a rack platform and an optical platform arranged at intervals, which are fixedly connected by multiple rack supports; The main linear slide is fixedly installed on the optical platform. The first end of the bending base is fixedly connected to the frame platform, and the second end extends along the Z-axis towards the optical platform. The first end of the first link and the first end of the second link are hinged at the same position on the linear sliding platform, thus having the same axis of rotation; The third and fourth links are hinged to the second end of the bent base, and the hinge positions are aligned in the Z-axis direction. The first and second links are of equal length, and the third and fourth links are of equal length.

[0016] Preferably, the bending mechanism further includes: a return spring; The second end of the first link is rotatably connected to the first end of the third link, and the second end of the second link is rotatably connected to the first end of the fourth link; There are at least two return springs. One return spring is connected at one end to the rotatable connection between the first and third links and at the other end to the frame support on the side where the first and third links are located. The other return spring is connected at one end to the rotatable connection between the second and fourth links and at the other end to the frame support on the side where the second and fourth links are located. The return springs are used to provide a restoring force when the bending mechanism 4 is close to the dead point position to prevent the bending mechanism from jamming.

[0017] Preferably, the third and fourth links in the initial position are parallel to the Z-axis direction, and the distance between the third and fourth links in the initial position is less than the distance between the different columns of brush filaments.

[0018] Preferably, the main linear slide includes: a ball screw module and a drive motor; The output shaft of the drive motor is connected to the lead screw of the ball screw module, which is set parallel to the X-axis direction. The slide of the ball screw module is fixedly connected to the loading platform. The drive motor drives the lead screw of the ball screw module to rotate, thereby driving the loading platform to move along the X-axis direction.

[0019] Preferably, the bending base further includes: a detachable base; The detachable base has an L-shaped structure. The first mounting surface of the detachable base is fixedly connected to the second end of the bent base. The second mounting surface of the detachable base is perpendicular to the first mounting surface. The second ends of the third link and the second ends of the fourth link are rotatably connected to the second mounting surface, respectively.

[0020] Preferably, the frame platform is made of carbon fiber and is used to support the bending base and bending drive mechanism; The frame support is made of aluminum alloy, with a flange nut fixed in the middle. The flange nut is used to fix and connect the return spring. A symmetrical I-beam milled groove structure is provided on the side of the bending base opposite to the auxiliary guide rail. The I-beam milled groove structure extends from the first end to the second end of the bending base along the Z-axis direction.

[0021] A method for forming the angle of a gantry-type conductive slip ring brush filament according to the present invention, used in the aforementioned gantry-type conductive slip ring brush filament angle forming device, includes the following steps; S1: Position and clamp the bristle assembly on the loading platform so that the bristles of the bristle assembly are arranged in two columns along the X-axis and the two columns of bristles are arranged along the Y-axis. S2: Start the motor, drive the ball screw to operate, and drive the third and fourth connecting rods to rotate to the initial position parallel to the Z-axis direction; S3: Start the drive motor to drive the ball screw module to rotate, and move the loading platform along the X-axis to the bending station, so that the brush bristles to be bent in the X-axis direction of the brush bristle assembly are aligned with the third and fourth connecting rods. S4: Start the motor, drive the ball screw to rotate, and move the linear sliding platform along the Z-axis. Through the first and second connecting rods, drive the third and fourth connecting rods to tilt outward in sync, pushing the bristles to bend to the preset angle. S5: Control the motor to reverse, drive the linear sliding platform to reset, and return the third and fourth links to their initial positions; S6: Control the drive motor to drive the ball screw module to rotate, and drive the loading platform to feed the spacing of a row of brush filaments along the X-axis direction, so that the next row of brush filaments to be bent is aligned with the third and fourth connecting rods; S7: Repeat steps S4-S6 until all brush bristles are bent.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention features a symmetrically arranged third and fourth connecting rods that expand outwards synchronously. The outer sides of the third and fourth connecting rods are in contact with the inner side of the brush bristles. The third and fourth connecting rods are simultaneously tilted outwards at the same angle in a second direction, pushing the brush bristles to bend outwards. This improves the consistency of the bending angle of the brush bristles on both sides of the brush bristle assembly. The bending angle can be freely adjusted and is determined by the rotation angle of the third and fourth connecting rods, thus improving the adaptability to processing different bending angles.

[0023] 2. This invention employs a compact structural design, incorporating weight-reduction features in multiple areas such as the bending base and detachable base, ensuring a lightweight overall structure. Furthermore, the detachable design of the bending base and base allows the device to accommodate various specifications and small-sized brush bristles with different angles, resulting in high versatility. In addition, the integrated design of the bending base simultaneously fulfills multiple functions, including component installation, structural load-bearing capacity, and weight reduction. While maintaining a compact overall structure, it effectively ensures dimensional and positional accuracy in all directions, meeting the objective requirements of actual conductive slip ring brush bristle manufacturing.

[0024] 3. This invention transmits the linear motion of the lead screw to the rotation of the connecting rod via a linkage mechanism, thereby achieving bending. Within the limited stroke of the lead screw, the connecting rod can rotate to a large angle, covering a wide range of brush bristle bending angles and adapting to the contact of conductive slip rings of different specifications. Simultaneously, the brush bristles maintain a relatively long surface contact with the lower connecting rod during bending, preventing excessive local deformation caused by uneven bending forces. In terms of process precision, a precision ball screw paired with a precision controller transmits motion, ensuring high precision in all aspects of the linkage mechanism and bending base, effectively guaranteeing the accuracy and consistency of the brush bristle angle forming.

[0025] 4. This invention utilizes a gantry frame to achieve overall hoisting of the drive and transmission devices, with all mechanical movements completed above the bristle holder. Simultaneously, a main linear slide table located below the bristle holder transports the bristle holder, ensuring no structural interference occurs during loading and unloading, and enabling effective system integration with preceding processes such as the secondary bending of the bristles. Attached Figure Description

[0026] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the gantry-type conductive slip ring brush filament forming device in an embodiment of the present invention; Figure 2 This is a front-view perspective perspective view of the structural support in an embodiment of the present invention; Figure 3 This is a rear-view perspective perspective view of the structural support in an embodiment of the present invention; Figure 4 This is a perspective view of the driving mechanism in an embodiment of the present invention; Figure 5 This is a perspective view of the transmission mechanism in an embodiment of the present invention; Figure 6 This is a perspective view of the linkage mechanism in an embodiment of the present invention; Figure 7 This is a front view of the linkage mechanism in an embodiment of the present invention; Figure 8 This is a perspective view of the main linear slide in an embodiment of the present invention; Figure 9 This is a schematic diagram of the bending mechanism in its initial position in an embodiment of the present invention; Figure 10 This is a schematic diagram of the bending mechanism in the bending position in an embodiment of the present invention.

[0027] As shown in the figure: Detailed Implementation

[0028] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0029] like Figure 1As shown, a gantry-type conductive slip ring brush filament angle forming device according to the present invention includes a core structure comprising a bending mechanism 4, a main linear slide 5, and a loading platform 7. The loading platform 7 is mounted on the movable part of the main linear slide 5, with its mounting surface facing the bending mechanism 4, and is used to support the brush filament assembly. The brush filaments of the assembly are arranged in two rows along the X-axis direction, and the two rows of brush filaments are arranged along the Y-axis direction. The bending mechanism 4 includes a third link 4021 and a fourth link 4022. The third link 4021 and the fourth link 4022 can be symmetrically and synchronously tilted outward in the Y-axis direction, thereby pushing the brush filaments to bend. The main linear slide 5 is used to drive the loading platform 7 to reciprocate along the X-axis direction, so that the different brush filaments arranged in the X-axis direction can be aligned one by one with the third link 4021 and the fourth link 4022 for bending. The X-axis, Y-axis, and Z-axis directions mentioned in this application are already... Figure 1 As shown in the image.

[0030] The gantry frame 6 provides support for the main components of the device. The gantry frame 6 includes a frame platform 601, multiple frame supports 602, and an optical platform 603.

[0031] The frame platform 601 and the optical platform 603 are spaced apart and can be parallel to each other. They are fixedly connected by multiple frame supports 602 to form a gantry frame structure. The frame platform 601 can be made of carbon fiber to reduce the weight of the gantry frame itself while ensuring structural rigidity. The end face of the frame platform 601 facing the main linear slide 5 is used to fix the first end of the bending base 101, realizing the overall suspension installation of the bending base 101, the bending drive mechanism 3, and the bending mechanism 4. The optical platform 603 can serve as the installation reference for the main linear slide 5, ensuring the relative positional accuracy between the main linear slide 5 and the bending mechanism 4 and avoiding brush alignment deviation.

[0032] The frame support 602 can be made of aluminum alloy, with a flange nut fixed in the middle. The flange nut is used to fix one end of the return spring 405 to ensure the installation stability of the return spring 405. At the same time, the frame support 602 connects the frame platform 601 and the optical platform 603 to ensure the rigidity of the overall frame.

[0033] The main linear slide 5 is the conveying component for the brush filament assembly. It works in conjunction with the loading platform 7 to achieve continuous bending of multiple rows of brush filaments. The specific structure includes a ball screw module 501, a drive motor 504, and an optical platform 603. The optical platform 603 is used to provide a precise installation reference for the ball screw module 501 and the gantry frame 6, ensuring that the axis of the ball screw module 501 is parallel to the X-axis.

[0034] The drive motor 504 is located at the end of the main linear slide 5. The output shaft of the drive motor 504 is connected to the lead screw of the ball screw module 501 via a coupling. The lead screw is parallel to the X-axis. The slide of the ball screw module 501 is fixedly connected to the loading platform 7. The drive motor 504 drives the lead screw of the ball screw module 501 to rotate, thereby driving the slide and the loading platform 7 to move smoothly along the X-axis. The upper surface of the loading platform 7 is a mounting surface. The mounting surface can be provided with positioning grooves or clamping devices for positioning and clamping the brush bristle assembly to prevent the brush bristle assembly from shifting during bending. Its mounting surface faces the bending mechanism 4 to ensure that the brush bristles can be aligned with the third connecting rod 4021 and the fourth connecting rod 4022. Before and after bending, the third link 4021 and the fourth link 4022 are located between two rows of brush filaments arranged along the Y-axis. The third link 4021 and the fourth link 4022 have working surfaces on their outer sides in the Y-axis direction. When bending, the working surfaces on the third link 4021 and the fourth link 4022 are in close contact with the brush filaments on their corresponding sides and are pushed to both sides in the Y-axis direction to achieve angle shaping.

[0035] The bending mechanism 4 is the main actuating component for the bending action. The bending mechanism 4 includes a first connecting rod 4011, a second connecting rod 4012, a third connecting rod 4021, a fourth connecting rod 4022, a return spring 405, and a T-shaped slider 407. Its specific structure is as follows: The first end of the first connecting rod 4011 and the first end of the second connecting rod 4012 are hinged to the T-slider 407 via the T-slider connector 408 and have the same axis of rotation. The second end of the first connecting rod 4011 is rotatably connected to the first end of the third connecting rod 4021, and the second end of the second connecting rod 4012 is rotatably connected to the first end of the fourth connecting rod 4022, forming a symmetrical connecting rod transmission structure. Furthermore, the first connecting rod 4011 and the second connecting rod 4012 are of equal length, and the third connecting rod 4021 and the fourth connecting rod 4022 are of equal length, ensuring that the bristle bending angles on both sides of the bristle assembly in the Y-axis direction are consistent. Because the first connecting rod 4011 and the second connecting rod 4012 are relatively long, the width of the first connecting rod 4011 near its first end is designed to be greater than the width near its second end, thereby reducing bending moment deformation during bending and ensuring the rigidity of the connecting rod.

[0036] The T-shaped slider 407 is fixedly connected to the linear sliding platform 303 of the bending drive mechanism 3 described later. The linear sliding platform 303 reciprocates along the Z-axis, causing the T-shaped slider 407 to move synchronously, which in turn drives the first link 4011 and the second link 4012 to swing, ultimately realizing the conversion of the third link 4021 and the fourth link 4022 between the initial position and the bending position.

[0037] The bending mechanism 4 has at least two return springs 405. One end of one return spring 405 is connected to the rotatable connection between the first connecting rod 4011 and the third connecting rod 4021. An intermediate connecting piece 404 can be provided at this rotatable connection to connect the return spring 405. The other end of this return spring 405 is fixedly connected to the frame support column 602 via a return connecting piece made of martensitic stainless steel. A flange nut can be provided in the middle of the frame support column 602 to fix the return connecting piece.

[0038] An intermediate connector 404 is also provided at the rotatable connection between the second link 4012 and the fourth link 4022. Another return spring 405 is symmetrically connected to this intermediate connector 404 and the corresponding frame support 602. The return spring 405 is used to provide restoring force when the bending mechanism 4 approaches the dead position, preventing the link from jamming and malfunctioning. The return spring 405 can be made of rubber.

[0039] The intermediate connector 404 is made of martensitic stainless steel and is used for stable connection between the first connecting rod 4011, the second connecting rod 4012, the third connecting rod 4021, and the fourth connecting rod 4022. The first connecting rod 4011, the second connecting rod 4012, the third connecting rod 4021, the fourth connecting rod 4022, and the T-slider 407 are all made of 45 steel and have undergone normalizing and tempering heat treatment to ensure structural strength.

[0040] The bending drive mechanism 3 provides power to the bending mechanism 4 and includes a ball screw 302, a linear sliding platform 303, a motor 201, a coupling 301, a first bearing seat 304, and a second bearing seat 305. An auxiliary guide rail 103 extending along the Z-axis is fixedly mounted on the bending base 101. An auxiliary slider 104 is slidably connected to the auxiliary guide rail 103 and is fixedly connected to the linear sliding platform 303. Two auxiliary guide rails 103 can be provided on the bending base 101 in the Y-direction, and each auxiliary guide rail 103 can have an auxiliary slider 104, thereby enhancing the support rigidity of the linear sliding platform 303 and preventing it from tipping over.

[0041] The motor 201 can be vertically placed and fixed to the frame platform 601 of the gantry frame 6. Its rotational output shaft is connected to the upper end of the ball screw 302 via a coupling 301. A first bearing seat 304 and a second bearing seat 305 can be respectively installed at the upper and lower ends of the bending base 101 in the Z-axis direction. The two ends of the ball screw 302 are rotatably connected to the first bearing seat 304 and the second bearing seat 305 via bearings. Countersunk pin holes can be machined at both ends of the bearing mounting holes of the first bearing seat 304 and the second bearing seat 305, and they are fastened to the bending base 101 with bolts and nuts. The linear sliding platform 303 is screwed to the ball screw 302 and simultaneously fixed to the auxiliary slider 104, thus enabling linear reciprocating motion in the Z-axis direction.

[0042] When motor 201 drives ball screw 302 to rotate in both directions, ball screw 302, through its own rotation, drives linear sliding platform 303 to reciprocate up and down along the Z-axis. The feed rate of motor 201 needs to be calculated based on the preset bending angle to precisely control the swing angle of the connecting rod. Auxiliary guide rail 103 cooperates with auxiliary slider 104 to restrict the rotational freedom of linear sliding platform 303, ensuring that it only performs reciprocating linear motion in the Z-axis direction. When there is no torque input from motor 201, ball screw 302 has a structural self-locking function, which can keep linear sliding platform 303 locked, avoiding positional displacement during bending and causing inaccurate brush filament bending angle.

[0043] The bending base 101 provides a mounting carrier for the bending drive mechanism 3 and the bending mechanism 4. The bending base 101 can be made of 45 steel, and has undergone normalizing and tempering heat treatment to ensure load-bearing strength. On its side opposite to the auxiliary guide rail 103, it has a symmetrical I-beam milled groove structure. The I-beam milled groove extends along the Z-axis from the first end above the bending base 101 to the second end below, forming a through mounting hole while reducing overall weight. The unmilled portion bears the structural load during hoisting and processing. The bending base 101 has a mounting surface perpendicular to the X-axis in its middle for mounting the bending drive mechanism 3. Guide rail bosses protrude on both sides of the mounting surface to fix the auxiliary guide rail 103 and ensure its positional accuracy.

[0044] The detachable base 102 has an L-shaped structure. Its first mounting surface is fixedly connected to the second end of the bending base 101. The second mounting surface is perpendicular to the first mounting surface. The second ends of the third connecting rod 4021 and the fourth connecting rod 4022 can be rotatably connected to the second mounting surface using bending center connectors 403. The bending center connectors 403 can be made of martensitic stainless steel. The detachable base 102 is small in size and simple in structure. Different sizes and specifications can be changed according to the bending height and spacing of the brush bristles, thus adapting to the bending requirements of various specifications of conductive slip ring brush bristles.

[0045] The lower end of the bending base 101 is provided with a mating surface parallel to the mounting surface, which is flush with the second mounting surface of the detachable base 102. During rotation, the sides of the third link 4021 and the fourth link 4022 are always in close contact with the aforementioned mating surface, thereby limiting the lateral displacement of the link during swing and ensuring bending accuracy.

[0046] The gantry-type conductive slip ring brush filament angle forming device of the present invention may further include a control system. The control system is used to coordinate the start, stop, and speed of the motor 201 and the drive motor 504, and to control the bending angle accuracy and the slide table feed. The control system is electrically connected to the motor 201 and the drive motor 504, and can adjust the motor output torque and speed according to the pre-stored bending angle parameters to realize an automated bending process for various types of brush filament assemblies.

[0047] This invention also provides a method for forming the angle of a gantry-type conductive slip ring brush filament, used in the aforementioned gantry-type conductive slip ring brush filament forming device of this invention. The forming method is as follows: Step S1: Position and clamp the bristle assembly in the positioning slot of the loading platform 7, so that the bristles of the bristle assembly are arranged in two columns along the X-axis and the two columns of bristles are arranged along the Y-axis, thus completing the bristle assembly clamping.

[0048] Step S2: Start motor 201 to drive ball screw 302 to rotate, which in turn moves linear sliding platform 303 along the Z-axis. This drives third link 4021 and fourth link 4022 to rotate to an initial position parallel to the Z-axis via first link 4011 and second link 4012, thus resetting the bending mechanism. In the initial position, the distance between third link 4021 and fourth link 4022 is less than the distance between the two rows of brush bristles, ensuring that the brush bristles can be bent subsequently.

[0049] Step S3: Start the drive motor 504 to drive the ball screw module 501 to rotate, and move the loading platform 7 along the X-axis to the bending station, so that the brush filaments to be bent in the X-axis direction are aligned with the third link 4021 and the fourth link 4022, or parallel to the third link 4021 and the fourth link 4022, to complete the feeding of the brush filament assembly.

[0050] Step S4: Start motor 201, drive ball screw 302 to rotate in the opposite direction, drive linear sliding platform 303 to move in the opposite direction along Z-axis, drive third link 4021 and fourth link 4022 to tilt outward symmetrically in Y-axis direction through first link 4011 and second link 4012, push the brush bristles to bend to a preset angle; during this process, return spring 405 swings and stretches with the link, providing restoring force for subsequent reset. This step is used to bend a single row of brush bristles.

[0051] Step S5: Control motor 201 to reverse, driving linear sliding platform 303 to reset. Third link 4021 and fourth link 4022 return to their initial positions under the restoring force of return spring 405. This step is used to complete the return of the bending mechanism.

[0052] Step S6: Control the drive motor 504 to drive the ball screw module 501 to rotate, which drives the loading platform 7 to feed a row of brush filaments along the X-axis direction, so that the next row of brush filaments to be bent is aligned with the third link 4021 and the fourth link 4022, thereby completing the feeding of the brush filament assembly.

[0053] Step S7: Repeat steps S4-S6 until all rows of bristles in the bristle assembly are bent.

[0054] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0055] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A gantry-type conductive slip ring brush filament angle forming device, characterized in that, include: Bending mechanism (4), main linear slide (5) and loading platform (7); The loading platform (7) is installed on the movable part of the main linear slide (5). The mounting surface of the loading platform (7) faces the bending mechanism (4). The mounting surface of the loading platform (7) is used to support the brush assembly. The bristles of the bristle assembly are arranged in two columns along the X-axis, and the two columns of bristles are arranged along the Y-axis. The bending mechanism (4) includes: a third link (4021) and a fourth link (4022); The third link (4021) and the fourth link (4022) can tilt outward synchronously in a symmetrical manner in the Y-axis direction, thereby pushing the bristles to bend; The main linear slide (5) is used to drive the loading platform (7) to move back and forth along the X-axis, so that the different brush filaments arranged in the X-axis direction can be aligned one by one with the third link (4021) and the fourth link (4022) for bending.

2. The gantry-type conductive slip ring brush filament angle forming device as described in claim 1, characterized in that, Also includes: The bending drive mechanism (3) has a linear sliding platform (303) that can reciprocate along the Z-axis direction. The third link (4021) and the fourth link (4022) have an initial position and a bending position; The third link (4021) is connected to the linear sliding platform (303) via the first link (4011), and the fourth link (4022) is connected to the linear sliding platform (303) via the second link (4012). The bending drive mechanism (3) drives the third link (4021) and the fourth link (4022) to switch between the initial position and the bending position by the reciprocating movement of the linear sliding platform (303).

3. The gantry-type conductive slip ring brush filament angle forming device as described in claim 2, characterized in that, Also includes: Bending base (101); An auxiliary guide rail (103) extending along the Z-axis is fixedly provided on the bending base (101), and the linear sliding platform (303) is slidably connected to the auxiliary guide rail (103). A ball screw (302) extending along the Z-axis is also provided on the bending base (101). A linear sliding platform (303) is screwed to the ball screw (302). The end of the ball screw (302) is connected to the rotation output shaft of the motor (201). The motor (201) drives the ball screw (302) to rotate back and forth, and then drives the linear sliding platform (303) to move back and forth along the Z-axis.

4. The gantry-type conductive slip ring brush filament angle forming device as described in claim 3, characterized in that, Also includes: Gantry rack (6); The gantry frame (6) includes a frame platform (601) and an optical platform (603) arranged at intervals, and the frame platform (601) and the optical platform (603) are fixedly connected by multiple frame supports (602); The main linear slide (5) is fixedly installed on the optical platform (603), and the first end of the bending base (101) is fixedly connected to the frame platform (601), and the second end extends along the Z-axis towards the optical platform (603); The first end of the first link (4011) and the first end of the second link (4012) are hinged to the same position on the linear sliding platform (303), thus having the same axis of rotation; The third link (4021) and the fourth link (4022) are hinged to the second end of the bent base (101), and the hinge positions are aligned in the Z-axis direction; The first link (4011) and the second link (4012) are of equal length, and the third link (4021) and the fourth link (4022) are of equal length.

5. The gantry-type conductive slip ring brush filament angle forming device as described in claim 4, characterized in that, The bending mechanism (4) also includes: a return spring (405); The second end of the first link (4011) is rotatably connected to the first end of the third link (4021), and the second end of the second link (4012) is rotatably connected to the first end of the fourth link (4022); There are at least two return springs. One return spring (405) is connected at one end to the rotatable connection between the first link (4011) and the third link (4021), and at the other end to the frame support (602) on the side where the first link (4011) and the third link (4021) are located. The other return spring (405) is connected at one end to the rotatable connection between the second link (4012) and the fourth link (4022), and at the other end to the frame support (602) on the side where the second link (4012) and the fourth link (4022) are located. The return spring (405) is used to provide a restoring force when the bending mechanism 4 is close to the dead point position to prevent the bending mechanism (4) from jamming.

6. The gantry-type conductive slip ring brush filament angle forming device as described in claim 2, characterized in that, The third link (4021) and the fourth link (4022) in the initial position are parallel to the Z-axis direction. The distance between the third link (4021) and the fourth link (4022) in the initial position is less than the distance between the different columns of brush filaments.

7. The gantry-type conductive slip ring brush filament angle forming device as described in claim 1, characterized in that, The main linear slide (5) includes: a ball screw module (501) and a drive motor (504); The output shaft of the drive motor (504) is connected to the screw of the ball screw module (501), which is set parallel to the X-axis direction. The slide of the ball screw module (501) is fixedly connected to the loading platform (7). The drive motor (504) drives the ball screw module (501) to rotate, thereby driving the loading platform (7) to move along the X-axis direction.

8. The gantry-type conductive slip ring brush filament angle forming device as described in claim 3, characterized in that, The bending base (101) also includes: a detachable base (102); The detachable base (102) has an L-shaped structure. The first mounting surface of the detachable base (102) is fixedly connected to the second end of the bent base (101). The second mounting surface of the detachable base (102) is perpendicular to the first mounting surface. The second end of the third link (4021) and the second end of the fourth link (4022) are respectively rotatably connected to the second mounting surface.

9. The gantry-type conductive slip ring brush filament angle forming device as described in claim 5, characterized in that, The frame platform (601) is made of carbon fiber and is used to support the bending base (101) and the bending drive mechanism (3). The frame support (602) is made of aluminum alloy, and a flange nut is fixedly installed in the middle of it. The flange nut is used to fix and connect the return spring (405). A symmetrical I-beam milling groove structure is provided on the side of the bending base (101) opposite to the auxiliary guide rail (103). The I-beam milling groove structure extends from the first end to the second end of the bending base (101) along the Z-axis direction.

10. A method for forming the angle of a gantry-type conductive slip ring brush filament, characterized in that, The gantry-type conductive slip ring brush filament angle forming device according to any one of claims 1 to 9 includes the following steps; S1: Position and clamp the bristle assembly on the loading platform (7) so that the bristles of the bristle assembly are arranged in two columns along the X-axis and the columns of the two bristles are arranged along the Y-axis. S2: Start the motor (201) to drive the ball screw (302) to operate, and drive the third link (4021) and the fourth link (4022) to rotate to the initial position parallel to the Z-axis direction; S3: Start the drive motor (504) to drive the ball screw module (501) to run, and drive the loading platform (7) to move along the X-axis to the bending station, so that the brush bristles to be bent in the X-axis direction are aligned with the third link (4021) and the fourth link (4022); S4: Start the motor (201), drive the ball screw (302) to rotate, drive the linear sliding platform (303) to move along the Z-axis, and drive the third link (4021) and the fourth link (4022) to tilt outward synchronously through the first link (4011) and the second link (4012), pushing the bristles to bend to the preset angle; S5: Control motor (201) to reverse, drive linear sliding platform (303) to reset, so that the third link (4021) and the fourth link (4022) return to their initial positions; S6: Control the drive motor (504) to drive the ball screw module (501) to rotate, and drive the loading platform (7) to feed a row of brush filaments along the X-axis direction to make the next row of brush filaments to be bent aligned with the third link (4021) and the fourth link (4022); S7: Repeat steps S4-S6 until all brush bristles are bent.

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