Automatic Assembly Equipment for High-Speed Rail Brake Pad Rivets

Abstract

The present invention discloses an automatic rivet assembly device for high-speed rail brake pads, which is used to assemble rivets onto the steel back of brake pads and includes: a rivet supply module for supplying rivets; a steel back positioning module that cooperates with an external robotic arm, and the robotic arm places the steel back on the steel back positioning plate; an assembly module that is arranged adjacent to the rivet supply device and the steel back positioning module respectively, and the assembly module assembles the rivets supplied by the rivet supply module onto the steel back. The present invention can improve production efficiency and assembly qualification rate.

Description

Technical Field

[0001] The present invention relates to the technical field of rivet assembly for high - speed rail brake pads, and particularly relates to an automatic rivet assembly device for high - speed rail brake pads. Background Art

[0002] The rivets of traditional brake pads are mainly assembled manually, which requires a large amount of labor, is not easy to assemble and has low efficiency; during assembly, it is necessary to rely on tooling for turning over, and spin - riveting with tooling, which requires a large number of tooling for turnover.

[0003] There is also a design that uses a truss manipulator to assemble rivets. After the manipulator sucks the end face of the rivet from the vibrating bowl, it quickly moves the rivet near the steel back. After precise positioning by a three - jaw cylinder, it is then moved one by one above the steel back hole for assembly. Since the rivet needs to move horizontally after precise positioning but there is no horizontal limit, if the movement is fast, the rivet will shift, and if the movement is very slow, the position of precise positioning can be ensured not to be damaged. Moreover, the entire process of taking the rivet, sending the rivet, precise positioning, then horizontal displacement, and pressing down the rivet is a sequential process and can only be carried out step by step, which results in extremely low efficiency. It takes more than ten minutes to complete the assembly of one piece, and the qualified rate of assembly is only 70%. Summary of the Invention

[0004] According to an embodiment of the present invention, there is provided an automatic rivet assembly device for high - speed rail brake pads, which is used to assemble rivets onto the steel back of the brake pads, and includes:

[0005] A rivet supply module, which is used to supply rivets;

[0006] A steel - back positioning module, which cooperates with an external robotic arm, and the robotic arm places the steel back on the steel - back positioning module;

[0007] An assembly module, which is arranged adjacent to the rivet supply device and the steel - back positioning module respectively, and the assembly module assembles the rivets supplied by the rivet supply module onto the steel back.

[0008] Further, the rivet supply module includes:

[0009] A vibrating bowl, in which several rivets are placed;

[0010] A separating mechanism, which is connected to the outlet of the vibrating bowl, and the separating mechanism separates the rivets in the vibrating bowl into single ones;

[0011] A delivery pipe, one end of which is connected to the separating mechanism, and the delivery pipe delivers the rivets separated by the separating mechanism.

[0012] Further, the steel - back positioning module includes:

[0013] A driving mechanism;

[0014] Cross slide, the cross slide includes two mutually perpendicular slides, the slides are connected to the drive mechanism, and the drive mechanism drives the slides to move;

[0015] Positioning and clamping mechanism, the positioning and clamping mechanism is arranged on the topmost slide of the cross slide.

[0016] Further, the positioning and clamping mechanism includes:

[0017] Tooling plate, on which the steel back is placed;

[0018] A number of limit pieces, the number of limit pieces are arranged on the tooling plate, and the number of limit pieces limit the steel back;

[0019] A number of clamping pieces, the number of clamping pieces are distributed along the edge of the tooling plate to clamp the steel back placed on the tooling plate.

[0020] Further, the assembly module includes: a material receiving and conveying mechanism and a nail sucking and pressing mechanism;

[0021] The material receiving and conveying mechanism is connected to the other end of the conveying pipe and is connected to the nail sucking and pressing mechanism. The material receiving and conveying mechanism receives the rivets conveyed by the conveying pipe and sends them to the nail sucking and pressing mechanism;

[0022] The nail sucking and pressing mechanism is connected to the steel back positioning module. The nail sucking and pressing mechanism sucks and presses the rivets into the steel back.

[0023] Further, the material receiving and conveying mechanism includes:

[0024] Drive mechanism;

[0025] Positioning mechanism, the positioning mechanism is arranged at the port of the other end of the conveying pipe, and the rivets are conveyed through the conveying pipe to the positioning mechanism for positioning;

[0026] Clamping mechanism, the clamping mechanism is connected to the drive mechanism, and the clamping mechanism is driven by the drive mechanism to clamp and push the rivets on the positioning mechanism.

[0027] Further, the drive mechanism includes: a first cylinder and a second cylinder;

[0028] The second cylinder is connected to the clamping mechanism, and the second cylinder drives the clamping mechanism to clamp the rivets;

[0029] The first cylinder is connected to the second cylinder, and the first cylinder pushes the second cylinder and the clamping mechanism.

[0030] Further, the positioning mechanism includes: a positioning frame, on which a material receiving part is arranged, the material receiving part is located directly below the other end of the conveying pipe, and the rivets are output through the conveying pipe to the material receiving part

[0031] Further, the clamping mechanism includes: clamping jaws, the clamping jaws are arranged adjacent to the positioning frame, and the clamping jaws clamp the rivets on the positioning frame and send them to the nail sucking and pressing mechanism.

[0032] Furthermore, the rivet pressing-in mechanism includes: a pressure head and a third air cylinder;

[0033] A through hole is provided at the center of the pressure head, and the through hole is connected to an external air source;

[0034] The pressure head sucks the rivets conveyed by the clamping mechanism, the pressure head is connected to the third air cylinder, and the third air cylinder drives the pressure head to press down the sucked rivets.

[0035] The automatic rivet assembling equipment for high-speed rail brake pads according to the embodiment of the present invention can improve production efficiency and assembly qualification rate.

[0036] It should be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 FIG. is a schematic diagram of the overall structure of the automatic rivet assembling equipment for high-speed rail brake pads according to the embodiment of the present invention;

[0038] Figure 2 FIG. is a schematic diagram of the structure of the steel back positioning module of the automatic rivet assembling equipment for high-speed rail brake pads according to the embodiment of the present invention;

[0039] Figure 3 FIG. is a schematic diagram of the structure of the positioning and clamping mechanism of the automatic rivet assembling equipment for high-speed rail brake pads according to the embodiment of the present invention;

[0040] Figure 4 FIG. is a schematic diagram of the structure of the steel back positioning module and the assembling module of the automatic rivet assembling equipment for high-speed rail brake pads according to the embodiment of the present invention;

[0041] Figure 5 FIG. is a schematic diagram of the structure of the material receiving and conveying mechanism of the automatic rivet assembling equipment for high-speed rail brake pads according to the embodiment of the present invention. EMBODIMENTS

[0042] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the drawings, and the present invention will be further elaborated.

[0043] First, in combination with Figures 1 - 5 Describe the automatic rivet assembling equipment for high-speed rail brake pads according to the embodiment of the present invention, which is used to assemble rivets onto the steel back of brake pads, and has a wide range of application scenarios.

[0044] As Figure 1 shown, the automatic rivet assembling equipment for high-speed rail brake pads according to the embodiment of the present invention includes a rivet supply module 1, a steel back positioning module 2, and an assembling module 3.

[0045] Specifically, as Figure 1As shown in the figure, the rivet supply module 1 is used to supply rivets; the steel back positioning module 2 cooperates with an external robotic arm, and the robotic arm places the steel back on the steel back positioning module 2; the assembly module 3 is arranged adjacent to the rivet supply module 1 and the steel back positioning module 2 respectively, and the assembly module 3 assembles the rivets supplied by the rivet supply module 1 onto the steel back.

[0046] Further, as Figure 1 shown, the rivet supply module 1 includes: a vibrating disk 11, a dividing mechanism 12, and a conveying pipe 13; a number of rivets are placed in the vibrating disk 11; the dividing mechanism 12 is connected to the outlet of the vibrating disk 11, and the dividing mechanism 12 separates the rivets in the vibrating disk 11 into individual ones for easy conveyance by the conveying pipe 13; one end of the conveying pipe 13 is connected to the dividing mechanism 12, and the conveying pipe 13 conveys the rivets separated by the dividing mechanism 12.

[0047] Further, as Figure 2 shown, the steel back positioning module 2 includes: a first driving mechanism 21, a cross slide 22, and a positioning and clamping mechanism 23; the cross slide 22 includes two layers of mutually perpendicular slides, and the slides are connected to the first driving mechanism 21, and the first driving mechanism 21 drives the slides to move. In this embodiment, the first driving mechanism 21 is preferably a servo motor, and different slides are driven by different servo motors, and the precise rotation of the servo motor drives the precise movement of the slides; the positioning and clamping mechanism 23 is arranged on the topmost slide of the cross slide 22.

[0048] Further, as Figure 3 shown, the positioning and clamping mechanism 23 includes: a tooling plate 231, a number of limit members 232, and a number of clamping members 233; the steel back is placed on the tooling plate 231, and through holes are machined on the tooling plate 231, and the through holes correspond to the holes on the steel back, which can avoid the part exposed after the rivet is pressed into the steel back; a number of limit members 232 are arranged on the tooling plate 231, and the number of limit members 232 limit the steel back. In this embodiment, the limit members 232 are columnar; a number of clamping members 233 are distributed along the edge of the tooling plate 231 to clamp the steel back placed on the tooling plate 231 in different directions, and the movement of the clamping members 233 is driven by a driving cylinder. After the steel back is placed on the tooling plate 231, one side of the steel back abuts against the limit member 232, and the remaining sides are clamped by the clamping members 233.

[0049] Further, as Figure 4 shown, the assembly module 3 includes: a receiving and conveying mechanism 31 and a rivet sucking and pressing mechanism 32; the receiving and conveying mechanism 31 is connected to the other end of the conveying pipe 13 and is connected to the rivet sucking and pressing mechanism 32, and the receiving and conveying mechanism 31 receives the rivets conveyed by the conveying pipe 13 and sends them to the rivet sucking and pressing mechanism 32; the rivet sucking and pressing mechanism 32 is connected to the steel back positioning module 2, and the rivet sucking and pressing mechanism 32 sucks and presses the rivets into the steel back.

[0050] Further, asFigure 5 As shown in the figure, the material receiving and conveying mechanism 31 includes: a second driving mechanism 311, a positioning mechanism 312, and a clamping mechanism 313; the positioning mechanism 312 is provided at the port at the other end of the conveying pipe 13, and the rivets are conveyed to the positioning mechanism 312 through the conveying pipe 13 for positioning; the clamping mechanism 313 is connected to the second driving mechanism 311, and the clamping mechanism 313 is driven by the second driving mechanism 311 to clamp and push the rivets on the positioning mechanism 312.

[0051] Further, as Figure 5 shown in the figure, the second driving mechanism 311 includes: a first air cylinder 3111 and a second air cylinder 3112; the second air cylinder 3112 is connected to the clamping mechanism 313, and the second air cylinder 3112 drives the clamping mechanism 313 to clamp the rivets; the first air cylinder 3111 is connected to the second air cylinder 3112, and the first air cylinder 3111 pushes the second air cylinder 3112 and the clamping mechanism 313.

[0052] In this embodiment, as Figure 5 shown in the figure, it further includes: a pair of fine-tuning limit members 3113, and the pair of fine-tuning limit members 3113 are provided on both sides of the second air cylinder 3112. Since the second air cylinder 3112 is connected to the clamping mechanism 313, the position of the clamping mechanism 313 can be limited by restricting the position of the second air cylinder 3112, so that the stop position of the clamping mechanism 313 is accurate, ensuring that the clamped rivets can accurately reach the nail sucking and pressing mechanism 32.

[0053] Further, as Figure 5 shown in the figure, the positioning mechanism 312 includes: a positioning frame 3121, and a material receiving part 31211 is provided on the positioning frame 3121. The material receiving part 31211 is located directly below the other end of the conveying pipe 13. The rivets are output from the conveying pipe 13 to the material receiving part 31211, and finally are clamped by the clamping mechanism 313 and then go out from the material receiving part 31211. The outlet of the material receiving part 31211 adopts a V-shaped flared opening. The positioning frame 3121 in this embodiment is made of spring steel wire and has a certain elasticity. After the clamping mechanism 313 clamps the rivets, the first air cylinder 3111 can push the clamping mechanism 313 to expand the outlet, and the rivets can pass through smoothly. After the rivets pass through, it will return to the original state to receive the following rivets. The outlet adopts a V-shaped flared form to prevent the clamping claws 3131 from not being correctly released when the pressing head 321 sucks the rivets and bringing the rivets back.

[0054] Further, as Figure 5As shown in the figure, the clamping mechanism 313 includes: clamping jaws 3131, which are arranged adjacent to the positioning frame 3121. The clamping jaws 3131 clamp the rivets on the positioning frame 3121 and send them to the nail sucking and pressing mechanism 32. In this embodiment, the clamping jaws 3131 adopt a synchronous clamping method to clamp the long cylindrical section of the rivets. The clamping center of the clamping jaws 3131 and the center of the pressing head are adjusted on the same vertical plane to ensure that the clamping jaws 3131 can be aligned with the pressing head 321 when pushed in place.

[0055] Furthermore, as Figure 4 shown, the nail sucking and pressing mechanism 32 includes: a pressing head 321 and a third cylinder 322; a through hole is provided at the center of the pressing head 321, and the through hole is connected to an external air source; the pressing head 321 sucks the rivets conveyed by the clamping mechanism 313, and the pressing head 321 is connected to the third cylinder 322, and the third cylinder 322 drives the pressing head 321 to press down the sucked rivets. The pressing head 321 can be replaced and is fixed with a set screw (not shown in the figure) to prevent it from falling. When the pressing head 321 needs to be replaced, just loosen the set screw to quickly replace it.

[0056] During use, place the rivets on the vibrating disk 11. The vibrating disk 11 automatically sorts the rivets, and then the rivets are separated into single ones by the outlet splitting mechanism 12 of the vibrating disk 11 and conveyed to the assembly module 3 through the conveying pipe 13; the assembly module 3 positions and clamps the rivets through the material receiving and conveying mechanism 31 and sends the rivets below the pressing head 321; the pressing head 321 sucks the rivets by relying on vacuum negative pressure and presses them into the steel back holes directly below; the steel back is automatically placed on the tooling plate 231 on the cross slide 22 by the manipulator, and the steel back is clamped by the positioning and clamping mechanism 23. The cross slide 22 moves the holes of the steel back to directly below the pressing head 321 according to a preset program to ensure that the rivets can be correctly and vertically pressed in.

[0057] As mentioned above, with reference to Figures 1 - 5 the automatic rivet assembly equipment for high-speed rail brake pads according to the embodiments of the present invention has been described, which can improve production efficiency and assembly qualification rate.

[0058] It should be noted that in this specification, the terms "including", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "comprising..." do not exclude the existence of additional identical elements in the process, method, article or device including the elements.

[0059] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and alternatives to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

1. An automatic rivet assembly device for high-speed rail brake pads, which is used to assemble rivets onto the steel back of the brake pads, and is characterized in that, Comprising: A rivet supply module for supplying the rivets; A steel back positioning module which cooperates with an external robotic arm, and the robotic arm places the steel back on the steel back positioning module; An assembly module which is arranged adjacent to the rivet supply module and the steel back positioning module respectively, and the assembly module assembles the rivets supplied by the rivet supply module onto the steel back; The rivet supply module comprises: A vibratory bowl in which a plurality of the rivets are placed; A separating mechanism connected to the outlet of the vibratory bowl, and the separating mechanism separates the rivets in the vibratory bowl into individual ones; A delivery pipe, one end of which is connected to the separating mechanism, and the delivery pipe delivers the rivets separated by the separating mechanism; The steel back positioning module comprises: A driving mechanism; A cross slide which comprises two layers of mutually perpendicular slides, the slides are connected to the driving mechanism, and the driving mechanism drives the slides to move; A positioning and clamping mechanism provided on the topmost slide of the cross slide; The assembly module comprises: a material receiving and conveying mechanism and a rivet sucking and pressing mechanism; The material receiving and conveying mechanism is connected to the other end of the delivery pipe and is in connection with the rivet sucking and pressing mechanism, and the material receiving and conveying mechanism picks up the rivets delivered by the delivery pipe and sends them to the rivet sucking and pressing mechanism; The rivet sucking and pressing mechanism is in connection with the steel back positioning module, and the rivet sucking and pressing mechanism sucks and presses the rivets into the steel back; The material receiving and conveying mechanism comprises: A driving mechanism; A positioning mechanism provided at the port of the other end of the delivery pipe, and the rivets are transported through the delivery pipe to the positioning mechanism for positioning; A clamping mechanism connected to the driving mechanism, and the clamping mechanism is driven by the driving mechanism to clamp and push the rivets on the positioning mechanism; The driving mechanism comprises: a first air cylinder and a second air cylinder; The second air cylinder is connected to the clamping mechanism, and the second air cylinder drives the clamping mechanism to clamp the rivets; The first air cylinder is connected to the second air cylinder, and the first air cylinder pushes the second air cylinder and the clamping mechanism; The positioning mechanism comprises: a positioning frame on which a material receiving portion is provided, the material receiving portion is located directly below the other end of the delivery pipe, the rivets are output through the delivery pipe to the material receiving portion, the outlet of the material receiving portion adopts a V-shaped flared opening, the positioning frame is made of spring steel wire and has a certain elasticity. After the clamping mechanism clamps the rivets, the first air cylinder pushes the clamping mechanism to expand the outlet, and the rivets can pass through smoothly. After the rivets pass through, it returns to the original state to receive the subsequent rivets.

2. The automatic riveting equipment for high-speed rail brake pads according to claim 1, characterized in that, The positioning and clamping mechanism comprises: A tooling plate on which the steel back is placed; A plurality of limiting members provided on the tooling plate, and the plurality of limiting members limit the steel back; A plurality of clamping members distributed along the edge of the tooling plate to clamp the steel back placed on the tooling plate.

3. The automatic riveting equipment for high-speed rail brake pads according to claim 1, characterized in that The clamping mechanism includes: clamping jaws, which are arranged adjacent to the positioning frame. The clamping jaws clamp the rivets on the positioning frame and send them to the nail sucking and pressing mechanism.

4. The automatic riveting equipment for high-speed rail brake pads according to claim 1, characterized in that, The nail sucking and pressing mechanism includes: a pressing head and a third cylinder; A through hole is provided at the center of the pressing head, and the through hole is connected to an external air source; The pressing head sucks the rivets conveyed by the clamping mechanism. The pressing head is connected to the third cylinder, and the third cylinder drives the pressing head to press down the sucked rivets.

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