Multi-point riveting device for connecting brush holder to plurality of brush cartridges

Abstract

The invention belongs to the technical field of motor stator assembly, and particularly relates to multi-point riveting equipment for connecting a brush carrier with a plurality of brush boxes, which can be used for riveting the brush carrier and the plurality of brush boxes at the same time. The device comprises a machining platform, and the machining platform is provided with a positioning column used for fixing the position of a brush carrier. A pressing and clamping mechanism is arranged above the machining platform, the pressing and clamping mechanism is connected with the rack through a first vertical movement guide mechanism, and the pressing and clamping mechanism downwards presses and clamps the brush box through a pressing and clamping driving mechanism installed on the rack; a riveting ejector pin mechanism is arranged below the machining platform, is connected with the rack through a second up-and-down movement guide mechanism, and does up-and-down linear movement through a jacking driving mechanism mounted on the rack; the riveting ejector pin mechanism is provided with a plurality of riveting ejector pins which face upwards and are vertically arranged; the riveting ejector pins and the riveting machining positions are arranged correspondingly. The machining platform is further provided with a machining through hole for the riveting ejector pin to pass through.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor stator assembly, and particularly relates to a multi-point riveting device for connecting a brush holder with a plurality of brush boxes. Background Art

[0002] Currently, the carbon brush boxes (hereinafter referred to as: brush boxes) in a motor stator are fixed to a carbon brush holder (hereinafter referred to as: brush holder) by riveting, and a plurality of brush boxes are arranged at intervals along the circumferential direction of the brush holder. As Figure 1 shown, four brush boxes 13 are riveted on the brush holder 12, and each brush box 13 and the brush holder 12 have two riveting points 14. The existing method is to perform riveting processing manually, but there is a technical problem of low work efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a multi-point riveting device for connecting a brush holder with a plurality of brush boxes, which can perform riveting operations on the brush holder and a plurality of brush boxes simultaneously.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a multi-point riveting device for connecting a brush holder with a plurality of brush boxes, including a frame and a processing platform; the processing platform is connected to the frame through a vertically arranged support rod, and a positioning column for fixing the position of the brush holder is arranged on the processing platform;

[0005] Above the processing platform, a pressure application and clamping mechanism for fixing the positions of a plurality of brush boxes is arranged. The pressure application and clamping mechanism is connected to the frame through a first up-and-down movement guiding mechanism, and the pressure application and clamping mechanism presses and clamps the brush boxes by a pressure application and clamping driving mechanism installed on the frame; the pressure application and clamping mechanism is arranged corresponding to the riveting processing station and is located directly above the riveting processing station;

[0006] Below the processing platform, a riveting thimble mechanism is arranged. The riveting thimble mechanism is connected to the frame through a second up-and-down movement guiding mechanism, and the riveting thimble mechanism makes a straight up-and-down movement by a jacking driving mechanism installed on the frame; the riveting thimble mechanism has upwardly and vertically arranged riveting thimbles, and a plurality of riveting thimbles are provided; the riveting thimbles are arranged corresponding to the riveting processing positions;

[0007] A processing through hole for the riveting thimbles to pass through is also provided on the processing platform.

[0008] Further, the pressing and clamping mechanism includes a connecting seat, which is connected to the frame through the first up-and-down movement guiding mechanism; an installation base is arranged below the connecting seat on the connecting seat; a horizontal support plate is further arranged above the connecting seat, and the horizontal support plate is connected to the pressing and clamping driving mechanism; a first vertical spring is arranged between the connecting seat and the horizontal support plate; a limiting mechanism for limiting the upward movement stroke of the horizontal support plate is arranged on the connecting seat.

[0009] An installation cavity and a limiting cavity are coaxially arranged in the connecting seat, a vertical installation hole is arranged on the installation base, the installation cavity, the limiting cavity and the vertical installation hole are arranged in sequence from top to bottom and are connected; the inner diameters of the installation cavity and the vertical installation hole are both smaller than the inner diameter of the limiting cavity.

[0010] A vertical pressing rod slidably installed through the vertical installation hole is further included, a limiting part located in the limiting cavity is arranged at the upper end of the vertical pressing rod, a second vertical spring is arranged between the limiting part and the top wall of the installation cavity, and a horizontal pressing plate located below the installation base is arranged at the lower end of the vertical pressing rod.

[0011] A clamping unit is further included, and the clamping unit includes a vertical connecting rod and a clamping jaw; the vertical connecting rod passes through the connecting seat and is in sliding fit, the upper end of the vertical connecting rod is connected to the horizontal support plate, the lower end of the vertical connecting rod extends below the connecting seat and is located outside the lower end of the installation base; a limiting hole facing the installation base is arranged at the lower end of the vertical connecting rod; there is a clamping jaw swinging space between the lower end of the vertical connecting rod and the lower end of the installation base.

[0012] The upper end of the clamping jaw is connected to one side of the lower end of the installation base through a horizontal rotating shaft and is located in the clamping jaw swinging space, the lower end of the clamping jaw is bent towards the direction close to the axis of the vertical pressing rod and extends below the installation base; a spherical protrusion rotatably installed in the limiting hole is arranged on one side of the upper end of the clamping jaw adjacent to the vertical connecting rod.

[0013] Multiple groups of the clamping units are arranged, and multiple groups of the clamping units are evenly distributed along the circumference of the vertical pressing rod.

[0014] Initially, the clamping jaws of each group of the clamping units are all open, the clamping jaws of each group of the clamping units are all located above the horizontal pressing plate, and there is a distance for the brush box to extend between the lower end of the clamping jaw of each group of the clamping units and the horizontal pressing plate; when clamping, the lower ends of the clamping jaws of each group of the clamping units are all located below the horizontal pressing plate and form a brush box clamping space with the horizontal pressing plate.

[0015] Further, the connecting seat includes a horizontal connecting plate and a connecting block which are arranged up and down and connected.

[0016] The horizontal connecting plate is connected to the frame through the first up-and-down motion guiding mechanism;

[0017] The limiting mechanism is arranged on the horizontal connecting plate and above the horizontal connecting plate; the horizontal support plate is above the horizontal connecting plate;

[0018] The vertical connecting rod is sequentially installed through the through holes on the horizontal connecting plate and the through holes on the connecting block, and they are all in sliding fit.

[0019] Furthermore, an installation through hole arranged vertically is provided on the horizontal connecting plate, an installation groove with an upward opening is formed on the connecting block, the installation through hole and the installation groove are coaxially arranged and communicated; the first vertical spring is installed in the installation through hole and the installation groove, and the upper end of the first vertical spring is above the upper surface of the horizontal connecting plate.

[0020] Furthermore, it further includes an up-and-down reciprocating motion guiding mechanism, and the up-and-down reciprocating motion guiding mechanism includes a sliding part and a sliding groove in sliding fit;

[0021] The sliding part is arranged at the edge of the horizontal pressing plate;

[0022] A connecting support located below itself is provided at the bottom edge of the installation base, and the sliding groove is vertically arranged on the connecting support;

[0023] Multiple groups of the up-and-down reciprocating motion guiding mechanisms are provided, and multiple groups of the up-and-down reciprocating motion guiding mechanisms are evenly distributed along the circumferential direction of the vertical pressing rod; one group of the up-and-down reciprocating motion guiding mechanisms is correspondingly arranged with one group of the clamping units.

[0024] Furthermore, the processing platform includes a processing table board and an installation table board arranged up and down, and both the processing table board and the installation table board are horizontally arranged;

[0025] The installation table board is connected to the frame through a support rod; a window corresponding to the processing table board is formed on the installation table board; the processing through hole is formed on the processing table board, and the positioning column is arranged on the upper surface of the processing table board;

[0026] The processing table board is connected to the installation table board through a horizontal linear reciprocating motion guiding mechanism; a horizontal linear reciprocating motion driving mechanism for driving the processing table board to perform reciprocating motion in the horizontal linear direction is installed on the installation table board.

[0027] Furthermore, the horizontal linear reciprocating motion guiding mechanism includes a sliding seat and a sliding rail in sliding fit;

[0028] The sliding rail is horizontally arranged on the upper surface of the installation table board, and the sliding seat is arranged on the lower surface of the processing table board.

[0029] Further, the horizontal linear reciprocating motion driving mechanism includes a driving motor and a lead screw mechanism; the driving motor is installed on the installation platen and is located below the installation platen; both ends of the lead screw in the lead screw mechanism are connected to the installation platen through rotating seats and are located below the installation platen; the shaft extension end of the driving motor is in transmission connection with the lead screw; the internal thread cylinder in the lead screw mechanism is connected to the processing platen through a bracket; the length direction of the lead screw is parallel to the length direction of the slide rail.

[0030] Further, the limiting mechanism includes an L-shaped limiting member. There are two pairs of L-shaped limiting members arranged in pairs. The two L-shaped limiting members are respectively located on both sides of the horizontal support plate and form an installation space for installing the horizontal support plate;

[0031] The L-shaped limiting member includes a vertical plate and a limiting flange provided at the top of the vertical plate; the lower end of the vertical plate is connected to the connecting seat; the limiting flanges of the two L-shaped limiting members are arranged oppositely and have a spacing;

[0032] The connection part of the pressing and clamping driving mechanism and the horizontal support plate is located between the limiting flanges of the two L-shaped limiting members;

[0033] The horizontal support plate is movably installed in the installation space, and the limiting flange is located above the horizontal support plate; the distance from the lower surface of the limiting flange to the top surface of the connecting seat is greater than the thickness of the horizontal support plate.

[0034] Further, the first up and down movement guiding mechanism includes a first vertical sleeve and a first vertical slide bar that are slidably matched;

[0035] The first vertical sleeve is arranged on the machine frame and is sleeved outside the first vertical slide bar; the lower end of the first vertical slide bar is connected to the connecting seat.

[0036] Compared with the prior art, the beneficial effects of the present invention are: The present invention provides a multi-point riveting device for connecting a brush holder and a plurality of brush boxes, which can simultaneously perform riveting operations on the brush holder and the plurality of brush boxes. It is beneficial to improve the processing efficiency of riveting and connecting the brush holder and the plurality of brush boxes, and also has advantages such as high automation. Description of the Drawings

[0037] Figure 1 is a schematic diagram of a brush box and a brush holder in the background art;

[0038] Figure 2 is a perspective view of the present invention;

[0039] Figure 3 is a front view of the present invention;

[0040] Figure 4 is the side view of the present invention;

[0041] Figure 5 is the perspective view of the pressure-applying and clamping mechanism in the present invention;

[0042] Figure 6 is Figure 5 the enlarged view of part A in;

[0043] Figure 7 is the front view of the pressure-applying and clamping mechanism in the present invention;

[0044] Figure 8 is Figure 7 the cross-sectional view along the section line B-B;

[0045] Figure 9 is the schematic position diagram of the processing platform, riveting thimble mechanism, second up-and-down movement guiding mechanism and lifting driving mechanism in the present invention;

[0046] Figure 10 is Figure 9 the enlarged view of part C in;

[0047] Figure 11 is the schematic position diagram of the riveting thimble, thimble base and second up-and-down movement guiding mechanism in the present invention;

[0048] Reference numerals:

[0049] 1 - frame;

[0050] 2 - processing platform; 201 - positioning column; 202 - processing through hole; 203 - processing table board; 204 - installation table board;

[0051] 3 - pressure-applying and clamping mechanism; 301 - connecting seat; 3011 - installation cavity; 3012 - limiting cavity; 3013 - vertical installation hole; 302 - horizontal support plate; 303 - first vertical spring; 304 - L-shaped limiting member; 3041 - vertical plate; 3042 - limiting flange; 305 - vertical connecting rod; 3051 - limiting hole; 306 - clamping jaw; 3061 - horizontal rotating shaft; 3062 - spherical protrusion; 307 - vertical pressure rod; 308 - second vertical spring; 309 - horizontal pressure plate; 3091 - sliding part; 310 - connecting support; 3101 - chute; 311 - horizontal connecting plate; 31101 - installation through hole; 312 - connecting block; 31201 - installation groove; 313 - installation base;

[0052] 4 - first up-and-down movement guiding mechanism; 401 - first vertical sleeve; 402 - first vertical sliding rod;

[0053] 5 - pressure-applying and clamping driving mechanism;

[0054] 6 - support rod;

[0055] 7 - Riveting ejector mechanism; 701 - Riveting ejector; 702 - Ejector base;

[0056] 8 - Second up - and - down movement guiding mechanism;

[0057] 9 - Lifting driving mechanism;

[0058] 10 - Horizontal linear reciprocating movement guiding mechanism; 1001 - Slide rail; 1002 - Sliding seat;

[0059] 11 - Horizontal linear reciprocating movement driving mechanism; 1101 - Driving motor; 1102 - Lead screw; 1103 - Internal - thread cylinder; 1104 - Rotating seat; 1105 - Bracket;

[0060] 12 - Brush holder; 1201 - Positioning hole;

[0061] 13 - Brush box;

[0062] 14 - Riveting point position. Detailed implementation mode

[0063] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0064] A multi - point riveting device for connecting a brush holder with a plurality of brush boxes, comprising a frame 1 and a processing platform 2; the processing platform 2 is connected to the frame 1 through a vertically arranged support rod 6, and a positioning post 201 for fixing the position of the brush holder 12 is arranged on the processing platform 2; above the processing platform 2, a pressing and clamping mechanism 3 for fixing the positions of a plurality of brush boxes 13 is arranged, the pressing and clamping mechanism 3 is connected to the frame 1 through a first up - and - down movement guiding mechanism 4, and the pressing and clamping mechanism 3 presses and clamps the brush box 13 by a pressing and clamping driving mechanism 5 installed on the frame 1; the pressing and clamping mechanism 3 is arranged corresponding to the riveting processing station and is located directly above the riveting processing station; below the processing platform 2, a riveting ejector mechanism 7 is arranged, the riveting ejector mechanism 7 is connected to the frame 1 through a second up - and - down movement guiding mechanism 8, and the riveting ejector mechanism 7 makes a linear up - and - down movement by a lifting driving mechanism 9 installed on the frame 1; the riveting ejector mechanism 7 has an upward and vertically arranged riveting ejector 701, and a plurality of the riveting ejectors 701 are provided; the riveting ejectors 701 are arranged corresponding to the riveting processing positions; a processing through - hole 202 for the riveting ejectors 701 to pass through is also opened on the processing platform 2.

[0065] During use, place the brush holder 12 on the processing platform 2 so that the positioning post 201 passes through the positioning hole 1201 on the brush holder 12. There are usually two positioning holes 1201, and the two positioning holes 1201 are respectively located on both sides of the center of the brush holder 12. The number and position of the positioning posts 201 are consistent with the number and position of the positioning holes 1201 on the brush holder 12. Place a plurality of brush boxes 13 at fixed positions on the brush holder 12 so that the through holes on each brush box 13 are arranged corresponding to the corresponding through holes on the brush holder 12 to form riveting points 14. After the brush holder 12 and the brush boxes 13 are placed, the brush holder 12 and the brush boxes 13 are located at the riveting processing station. At this time, the pressing and clamping mechanism 3 is located above the brush holder 12 and the brush boxes 13, and the riveting ejector pin mechanism 7 is located below the brush holder 12 and the brush boxes 13. The pressing and clamping driving mechanism 5 drives the pressing and clamping mechanism 3 to press down and clamp the brush box 13, and the lifting driving mechanism 9 drives the riveting ejector pin mechanism 7 to move upward, so that the riveting ejector pin 701 passes upward through the processing through hole 202 and the riveting point 14, and rivets and fixes the brush box 13 to the brush holder 12. After the riveting and fixing are completed, the pressing and clamping driving mechanism 5 drives the pressing and clamping mechanism 3 to reset upward, and the lifting driving mechanism 9 drives the riveting ejector pin mechanism 7 to reset downward.

[0066] Specifically, the riveting ejector pin mechanism 7 includes an ejector pin base 702 and a riveting ejector pin 701 vertically arranged above the ejector pin base 702; the lower end of the riveting ejector pin 701 is connected to the ejector pin base 702. The lifting driving mechanism 9 is connected to the ejector pin base 702.

[0067] Preferably, the pressing and clamping mechanism 3 includes a connecting seat 301, and the connecting seat 301 is connected to the frame 1 through the first up and down movement guiding mechanism 4; an installation base 313 is arranged below the connecting seat 301; a horizontal support plate 302 is further arranged above the connecting seat 301, and the horizontal support plate 302 is connected to the pressing and clamping driving mechanism 5; a first vertical spring 303 is arranged between the connecting seat 301 and the horizontal support plate 302; a limiting mechanism for limiting the upward movement stroke of the horizontal support plate 302 is arranged on the connecting seat 301; an installation cavity 3011 and a limiting cavity 3012 are coaxially arranged in the connecting seat 301, and a vertical installation hole 3013 is arranged on the installation base 313. The installation cavity 3011, the limiting cavity 3012 and the vertical installation hole 3013 are arranged in sequence from top to bottom and are connected; the inner diameters of the installation cavity 3011 and the vertical installation hole 3013 are both smaller than the inner diameter of the limiting cavity 3012; a vertical pressing rod 307 is further slidably installed through the vertical installation hole 3013. A limiting part located in the limiting cavity 3012 is arranged at the upper end of the vertical pressing rod 307, a second vertical spring 308 is arranged between the limiting part and the top wall of the installation cavity 3011, and a horizontal pressing plate 309 located below the installation base 313 is arranged at the lower end of the vertical pressing rod 307; a clamping unit is further included, and the clamping unit includes a vertical connecting rod 305 and a clamping jaw 306; the vertical connecting rod 305 passes through the connecting seat 301 and is installed in a sliding fit. The upper end of the vertical connecting rod 305 is connected to the horizontal support plate 302, and the lower end of the vertical connecting rod 305 extends below the connecting seat 301 and is located outside the lower end of the installation base 313; a limiting hole 3051 facing the installation base 313 is arranged at the lower end of the vertical connecting rod 305; there is a clamping jaw swinging space between the lower end of the vertical connecting rod 305 and the lower end of the installation base 313; the upper end of the clamping jaw 306 is connected to one side of the lower end of the installation base 313 through a horizontal rotating shaft 3061 and is located in the clamping jaw swinging space. The lower end of the clamping jaw 306 is bent towards the axis of the vertical pressing rod 307 and extends below the installation base 313; a spherical protrusion 3062 rotatably installed in the limiting hole 3051 is arranged on one side of the upper end of the clamping jaw 306 adjacent to the vertical connecting rod 305; multiple groups of the clamping units are arranged, and multiple groups of the clamping units are evenly distributed along the circumference of the vertical pressing rod 307; initially, the clamping jaws 306 of each group of the clamping units are all open, the clamping jaws 306 of each group of the clamping units are all located above the horizontal pressing plate 309, and there is a spacing for the brush box 13 to extend between the lower end of the clamping jaw 306 of each group of the clamping units and the horizontal pressing plate 309; when clamping, the lower ends of the clamping jaws 306 of each group of the clamping units are all located below the horizontal pressing plate 309 and form a brush box clamping space.

[0068] Initially, the jaws 306 of each clamping unit are in an open state. The jaws 306 of each clamping unit are located above the horizontal pressing plate 309, and there is a spacing for the brush box to extend between the lower end of the jaws 306 of each clamping unit and the horizontal pressing plate 309. The pressing and clamping drive mechanism 5 drives the pressing and clamping mechanism 3 to move downward. When the horizontal pressing plate 309 contacts the top surfaces of multiple brush boxes 13, the second vertical spring 308 is compressed by force, and the horizontal pressing plate 309 pre-presses the multiple brush boxes 13. One brush box 13 extends into the spacing between the lower end of one jaw 306 and the horizontal pressing plate 309. The pressing and clamping drive mechanism 5 drives the pressing and clamping mechanism 3 to continue moving downward, and the first vertical spring 303 is compressed by force to strengthen the pressing effect of the horizontal pressing plate 309 on the multiple brush boxes 13. At the same time, the spacing between the upper surface of the connecting seat 301 and the lower surface of the horizontal support plate 302 gradually decreases until the upper surface of the connecting seat 301 fits with the horizontal support plate 302. During this process, the mounting base 313 and the connecting seat 301 move upward together, generating an upward displacement relative to the vertical pressure rod 307, thereby driving the jaws 306 to rotate around the horizontal rotating shaft 3061 in the axial direction close to the vertical pressure rod 307. The jaws 306 of each clamping unit are in a closed state, thereby clamping multiple brush boxes 13. Generally speaking, through the clamping of the jaws 306 of multiple clamping units and the pressing of the horizontal pressing plate 309, the two work together to fix the positions of multiple brush boxes 13. After the riveting operation is completed, the pressing and clamping drive mechanism 5 drives the pressing and clamping mechanism 3 to move upward, and both the first vertical spring 303 and the second vertical spring 308 extend and reset. The horizontal pressing plate 309 extends downward to below the lower end of the jaws 306 to reset, and the jaws 306 rotate around the horizontal rotating shaft 3061 in the axial direction away from the vertical pressure rod 307 to achieve the opening and reset of the jaws 306 of each clamping unit. The limiting hole 3051 and the spherical protrusion 3062 work together to limit the opening amplitude of the jaws 306.

[0069] It should be ensured that there is a gap between the vertical connecting rod 305 and the mounting base 313 to ensure that the relative movement between the two is not interfered.

[0070] The mounting base 313 and the connecting seat 301 can be connected by welding, bolt connection, etc.

[0071] Preferably, the connecting seat 301 includes a horizontal connecting plate 311 and a connecting block 312 which are arranged up and down and connected. The horizontal connecting plate 311 is connected to the frame 1 through the first up and down movement guiding mechanism 4. The limiting mechanism is arranged on the horizontal connecting plate 311 and is located above the horizontal connecting plate 311. The horizontal support plate 302 is located above the horizontal connecting plate 311. The vertical connecting rod 305 is installed through the through holes on the horizontal connecting plate 311 and the through holes on the connecting block 312 in sequence and is in sliding fit.

[0072] The horizontal connecting plate 311 and the connecting block 312 are connected by welding, bolts, etc. The horizontal connecting plate 311 provides installation support for the limiting mechanism, and the limiting mechanism has various specific implementation manners, as long as the upward movement stroke of the horizontal support plate 302 can be restricted.

[0073] The first vertical spring 303 can be arranged between the upper surface of the horizontal connecting plate 311 and the lower surface of the horizontal support plate 302. Preferably, a vertically arranged installation through hole 31101 is provided on the horizontal connecting plate 311, and an upwardly open installation groove 31201 is formed on the connecting block 312. The installation through hole 31101 and the installation groove 31201 are coaxially arranged and communicated; the first vertical spring 303 is installed in the installation through hole 31101 and the installation groove 31201, and the upper end of the first vertical spring 303 is located above the upper surface of the horizontal connecting plate 311. By providing the installation through hole 31101 and the installation groove 31201, the first vertical spring 303 is stably installed, and the side walls of the installation through hole 31101 and the installation groove 31201 can also play a guiding role in the elongation or shortening of the first vertical spring 303 in the vertical direction.

[0074] Preferably, it further includes an up-and-down reciprocating motion guiding mechanism, and the up-and-down reciprocating motion guiding mechanism includes a sliding part 3091 and a sliding groove 3101 that are slidably matched; the sliding part 3091 is arranged at the edge of the horizontal pressing plate 309; a connecting support 310 located below itself is arranged at the bottom edge of the installation base 313, and the sliding groove 3101 is vertically arranged on the connecting support 310; multiple groups of the up-and-down reciprocating motion guiding mechanisms are provided, and multiple groups of the up-and-down reciprocating motion guiding mechanisms are evenly distributed along the circumferential direction of the vertical pressing rod 307; one group of the up-and-down reciprocating motion guiding mechanisms is arranged corresponding to one group of the clamping units. By providing the sliding part 3091 and the sliding groove 3101 that are slidably matched, the reliability of the up-and-down movement of the horizontal pressing plate 309 is higher.

[0075] Preferably, the processing platform 2 includes a processing table board 203 and an installation table board 204 arranged up and down, and both the processing table board 203 and the installation table board 204 are horizontally arranged; the installation table board 204 is connected to the frame 1 through a support rod 6; a window corresponding to the processing table board 203 is opened on the installation table board 204; the processing through hole 202 is opened on the processing table board 203, and the positioning column 201 is arranged on the upper surface of the processing table board 203; the processing table board 203 and the installation table board 204 are connected by a horizontal linear reciprocating motion guiding mechanism 10; a horizontal linear reciprocating motion driving mechanism 11 for driving the processing table board 203 to perform reciprocating motion in the horizontal linear direction is installed on the installation table board 204.

[0076] The installation platen 204 provides installation support for the horizontal linear reciprocating motion driving mechanism 11. The horizontal linear reciprocating motion driving mechanism 11 drives the processing platen 203 to perform reciprocating motion in the horizontal linear direction. The horizontal linear reciprocating motion guiding mechanism 10 guides the reciprocating motion of the processing platen 203 in the horizontal linear direction. Initially, the horizontal linear reciprocating motion driving mechanism 11 drives the processing platen 203 to move away from the riveting processing station in the horizontal linear direction. After the brush holder 12 and the brush box 13 are placed on the processing platen 203, the horizontal linear reciprocating motion driving mechanism 11 drives the processing platen 203 to move to the riveting processing station in the horizontal linear direction.

[0077] The horizontal linear reciprocating motion guiding mechanism 10 can be a gear-rack structure. Preferably, the horizontal linear reciprocating motion guiding mechanism 10 includes a sliding seat 1002 and a slide rail 1001 that are slidably engaged; the slide rail 1001 is horizontally arranged on the upper surface of the installation platen 204, and the sliding seat 1002 is arranged on the lower surface of the processing platen 203. Through the sliding cooperation between the sliding seat 1002 and the slide rail 1001, the reciprocating motion of the processing platen 203 in the horizontal linear direction is guided.

[0078] The horizontal linear reciprocating motion driving mechanism 11 can be an electric push rod, a hydraulic cylinder, a pneumatic cylinder, etc. Preferably, the horizontal linear reciprocating motion driving mechanism 11 includes a driving motor 1101 and a lead screw mechanism; the driving motor 1101 is installed on the installation platen 204 and is located below the installation platen 204; both ends of the lead screw 1102 in the lead screw mechanism are connected to the installation platen 204 through a rotating seat 1104 and are located below the installation platen 204; the shaft extension end of the driving motor 1101 is in transmission connection with the lead screw 1102; the internal thread cylinder 1103 in the lead screw mechanism is connected to the processing platen 203 through a bracket 1105; the length direction of the lead screw 1102 is parallel to the length direction of the slide rail 1001. Since the sliding seat 1002 is slidably engaged with the slide rail 1001, the sliding seat 1002 is connected to the processing platen 203, and the processing platen 203 is connected to the internal thread cylinder 1103 through a bracket 1105. Therefore, when the driving motor 1101 drives the lead screw 1102 to rotate forward or reverse around its own axis, it can drive the internal thread cylinder 1103 to perform linear reciprocating motion along the length direction of the lead screw 1102, and further drive the processing platen 203 to perform linear reciprocating motion along the length direction of the lead screw 1102.

[0079] Preferably, the limiting mechanism includes an L-shaped limiting member 304. Two L-shaped limiting members 304 are arranged in pairs. The two L-shaped limiting members 304 are respectively located on both sides of the horizontal support plate 302 and form an installation space for installing the horizontal support plate 302. The L-shaped limiting member 304 includes a vertical plate 3041 and a limiting flange 3042 provided at the top of the vertical plate 3041. The lower end of the vertical plate 3041 is connected to the connecting seat 301. The limiting flanges 3042 of the two L-shaped limiting members 304 are arranged oppositely and have a spacing. The connection part of the pressure-applying clamping driving mechanism 5 and the horizontal support plate 302 is located between the limiting flanges 3042 of the two L-shaped limiting members 304. The horizontal support plate 302 is movably installed in the installation space, and the limiting flange 3042 is located above the horizontal support plate 302. The distance from the lower surface of the limiting flange 3042 to the top surface of the connecting seat 301 is greater than the thickness of the horizontal support plate 302. The vertical plate 3041 and the limiting flange 3042 can be an integrally formed integral structure. Specifically, the lower end of the vertical plate 3041 is welded to the upper surface of the horizontal connecting plate 311. The limiting flange 3042 limits the upward movement stroke of the horizontal support plate 302.

[0080] The first up-and-down movement guiding mechanism 4 can be a gear-rack structure, a chute-slider structure, etc. Preferably, the first up-and-down movement guiding mechanism 4 includes a first vertical sleeve 401 and a first vertical sliding rod 402 that are slidably engaged. The first vertical sleeve 401 is provided on the frame 1 and is sleeved outside the first vertical sliding rod 402. The lower end of the first vertical sliding rod 402 is connected to the connecting seat 301.

[0081] The second up-and-down movement guiding mechanism 8 can be a gear-rack structure, a chute-slider structure, etc. Preferably, the second up-and-down movement guiding mechanism 8 includes a second vertical sleeve and a second vertical sliding rod that are slidably engaged. The second vertical sleeve is provided on the frame 1 and is sleeved outside the second vertical sliding rod. The upper end of the second vertical sliding rod is connected to the thimble base 702 and is located below the thimble base 702.

[0082] Both the pressure-applying clamping driving mechanism 5 and the jacking driving mechanism 9 can be air cylinders, hydraulic cylinders, electric push rods, etc.

[0083] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Any equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A multi-point riveting device for connecting a brush holder to a plurality of brush boxes, characterized in that: It includes a frame (1) and a processing platform (2); the processing platform (2) is connected to the frame (1) through vertically arranged support rods (6), and a positioning post (201) for fixing the position of the brush holder (12) is arranged on the processing platform (2); Above the processing platform (2), there is a pressing and clamping mechanism (3) for fixing the positions of a plurality of brush boxes (13). The pressing and clamping mechanism (3) is connected to the frame (1) through a first up-and-down movement guiding mechanism (4). The pressing and clamping mechanism (3) presses and clamps the brush box (13) by a pressing and clamping driving mechanism (5) installed on the frame (1); the pressing and clamping mechanism (3) is arranged corresponding to the riveting processing station and is located directly above the riveting processing station; Below the processing platform (2), there is a riveting thimble mechanism (7). The riveting thimble mechanism (7) is connected to the frame (1) through a second up-and-down movement guiding mechanism (8). The riveting thimble mechanism (7) makes a linear up-and-down movement by a jacking driving mechanism (9) installed on the frame (1); the riveting thimble mechanism (7) has upwardly and vertically arranged riveting thimbles (701), and a plurality of riveting thimbles (701) are provided; the riveting thimbles (701) are arranged corresponding to the riveting processing positions; On the processing platform (2), there is also a processing through hole (202) for the riveting thimble (701) to pass through.

2. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to claim 1, characterized in that: The pressing and clamping mechanism (3) includes a connecting seat (301). The connecting seat (301) is connected to the frame (1) through the first up-and-down movement guiding mechanism (4); an installation base (313) is arranged below the connecting seat (301) itself; there is also a horizontal support plate (302) arranged above the connecting seat (301). The horizontal support plate (302) is connected to the pressing and clamping driving mechanism (5); a first vertical spring (303) is arranged between the connecting seat (301) and the horizontal support plate (302); a limiting mechanism for limiting the upward movement stroke of the horizontal support plate (302) is arranged on the connecting seat (301); An installation cavity (3011) and a limiting cavity (3012) are coaxially arranged in the connecting seat (301). A vertical installation hole (3013) is arranged on the installation base (313). The installation cavity (3011), the limiting cavity (3012), and the vertical installation hole (3013) are arranged in sequence from top to bottom and are connected; the inner diameters of the installation cavity (3011) and the vertical installation hole (3013) are both smaller than the inner diameter of the limiting cavity (3012); It also includes a vertical pressure rod (307) slidably installed through the vertical installation hole (3013). A limiting portion located in the limiting cavity (3012) is arranged at the upper end of the vertical pressure rod (307). A second vertical spring (308) is arranged between the limiting portion and the top wall of the installation cavity (3011). A horizontal pressing plate (309) located below the installation base (313) is arranged at the lower end of the vertical pressure rod (307); It further includes a clamping unit, and the clamping unit includes a vertical connecting rod (305) and a clamping jaw (306); the vertical connecting rod (305) is installed through the connecting seat (301) and is in sliding fit, the upper end of the vertical connecting rod (305) is connected to the horizontal support plate (302), the lower end of the vertical connecting rod (305) extends below the connecting seat (301) and is located outside the lower end of the installation base (313); a limiting hole (3051) facing the installation base (313) is provided at the lower end of the vertical connecting rod (305); there is a clamping jaw swinging space between the lower end of the vertical connecting rod (305) and the lower end of the installation base (313). The upper end of the clamping jaw (306) is connected to one side of the lower end of the installation base (313) through a horizontal rotating shaft (3061) and is located in the clamping jaw swinging space, the lower end of the clamping jaw (306) is bent towards the axis of the vertical pressing rod (307) and extends below the installation base (313); a spherical protrusion (3062) rotatably installed in the limiting hole (3051) is provided on the side of the upper end of the clamping jaw (306) adjacent to the vertical connecting rod (305). Multiple groups of the clamping units are provided, and the multiple groups of clamping units are evenly distributed along the circumferential direction of the vertical pressing rod (307). Initially, the clamping jaws (306) of each group of clamping units are all open, the clamping jaws (306) of each group of clamping units are all located above the horizontal pressing plate (309), and there is a spacing for the brush box (13) to extend between the lower end of the clamping jaws (306) of each group of clamping units and the horizontal pressing plate (309); during clamping, the lower ends of the clamping jaws (306) of each group of clamping units are all located below the horizontal pressing plate (309) and form a brush box clamping space with the horizontal pressing plate (309).

3. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to claim 2, characterized in that: The connecting seat (301) includes a horizontal connecting plate (311) and a connecting block (312) which are arranged up and down and connected to each other. The horizontal connecting plate (311) is connected to the frame (1) through the first up and down movement guiding mechanism (4). The limiting mechanism is arranged on the horizontal connecting plate (311) and is located above the horizontal connecting plate (311); the horizontal support plate (302) is located above the horizontal connecting plate (311). The vertical connecting rod (305) is installed through the through hole on the horizontal connecting plate (311) and the through hole on the connecting block (312) in sequence and is in sliding fit with both of them.

4. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to claim 3, wherein: An upwardly vertical installation through hole (31101) is provided on the horizontal connecting plate (311), an installation groove (31201) with an upward opening is formed on the connecting block (312), the installation through hole (31101) and the installation groove (31201) are coaxially arranged and communicated; the first vertical spring (303) is installed in the installation through hole (31101) and the installation groove (31201), and the upper end of the first vertical spring (303) is located above the upper surface of the horizontal connecting plate (311).

5. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to claim 2, characterized in that: It further includes a vertical reciprocating motion guiding mechanism, and the vertical reciprocating motion guiding mechanism includes a sliding part (3091) and a sliding groove (3101) that are slidably engaged with each other; The sliding part (3091) is arranged at the edge of the horizontal pressing plate (309); A connecting support (310) is arranged at the bottom edge of the mounting base (313) and below itself, and the sliding groove (3101) is vertically arranged on the connecting support (310); Multiple groups of the vertical reciprocating motion guiding mechanisms are provided, and the multiple groups of the vertical reciprocating motion guiding mechanisms are evenly distributed circumferentially along the vertical pressing rod (307); One group of the vertical reciprocating motion guiding mechanisms is arranged corresponding to one group of the clamping units.

6. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to any one of claims 1-5, characterized in that: The processing platform (2) includes a processing table board (203) and a mounting table board (204) arranged up and down, and both the processing table board (203) and the mounting table board (204) are horizontally arranged; The mounting table board (204) is connected to the frame (1) through a support rod (6); A window corresponding to the processing table board (203) is provided on the mounting table board (204); The processing through hole (202) is opened on the processing table board (203), and the positioning column (201) is arranged on the upper surface of the processing table board (203); The processing table board (203) is connected to the mounting table board (204) through a horizontal linear reciprocating motion guiding mechanism (10); A horizontal linear reciprocating motion driving mechanism (11) for driving the processing table board (203) to perform reciprocating motion in the horizontal linear direction is installed on the mounting table board (204).

7. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to claim 6, characterized in that: The horizontal linear reciprocating motion guiding mechanism (10) includes a sliding seat (1002) and a slide rail (1001) that are slidably engaged with each other; The slide rail (1001) is horizontally arranged on the upper surface of the mounting table board (204), and the sliding seat (1002) is arranged on the lower surface of the processing table board (203).

8. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to claim 7, characterized in that: The horizontal linear reciprocating motion driving mechanism (11) includes a driving motor (1101) and a lead screw mechanism; The driving motor (1101) is installed on the mounting table board (204) and is located below the mounting table board (204); Both ends of the lead screw (1102) in the lead screw mechanism are connected to the mounting table board (204) through a rotating seat (1104) and are located below the mounting table board (204); The shaft extension end of the driving motor (1101) is in transmission connection with the lead screw (1102); The internal thread cylinder (1103) in the lead screw mechanism is connected to the processing table board (203) through a bracket (1105); The length direction of the lead screw (1102) is parallel to the length direction of the slide rail (1001).

9. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to claim 2, characterized in that: The limiting mechanism includes an L-shaped limiting member (304), and two L-shaped limiting members (304) are arranged in pairs. The two L-shaped limiting members (304) are respectively located on both sides of the horizontal support plate (302) and form an installation space for installing the horizontal support plate (302); The L-shaped limiting member (304) includes a vertical plate (3041) and a limiting flange (3042) provided at the top of the vertical plate (3041); the lower end of the vertical plate (3041) is connected to the connecting seat (301); the limiting flanges (3042) of the two L-shaped limiting members (304) are arranged opposite to each other and have a spacing; The connection point of the pressing and clamping driving mechanism (5) and the horizontal support plate (302) is located between the limiting flanges (3042) of the two L-shaped limiting members (304); The horizontal support plate (302) is movably installed in the installation space, and the limiting flange (3042) is located above the horizontal support plate (302); the distance from the lower surface of the limiting flange (3042) to the top surface of the connecting seat (301) is greater than the thickness of the horizontal support plate (302).

10. The multi-point riveting device for connecting a brush holder to a plurality of brush boxes according to claim 2, characterized in that: The first vertical movement guiding mechanism (4) includes a first vertical sleeve (401) and a first vertical sliding rod (402) that are slidably engaged; The first vertical sleeve (401) is provided on the frame (1) and is sleeved outside the first vertical sliding rod (402); the lower end of the first vertical sliding rod (402) is connected to the connecting seat (301).

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