Contact piece riveting device

Abstract

The utility model relates to the technical field of switch contact pieces, and provides a contact piece riveting device, including a workbench, a riveting pressing mechanism for pressing down rivets to make them riveted with the contact pieces, and a rivet feeding mechanism composed of a vibrating plate and a conveying track, and also includes a clamping mechanism for fixing the contact pieces, the clamping mechanism includes a tooling seat and a pressing plate, the tooling seat is provided with a plurality of slots for installing the contact pieces, the bottom of the slot is provided with a bypass through hole for avoiding the rivet, the pressing plate is arranged above the tooling seat, and is used to press each contact piece installed in the slot; the direction of the slot connection line is defined as the horizontal direction, and the direction perpendicular to the slot connection line is defined as the vertical direction, and the clamping mechanism is connected to a horizontal driving mechanism for driving it to move horizontally. The utility model has one clamping mechanism that can clamp multiple contact pieces, thereby improving work efficiency, and the contact pieces are not taken out until all the contact pieces on the tooling seat are riveted, thereby avoiding safety hazards.

Description

Technical Field

[0001] The utility model relates to the technical field of switch contact pieces, in particular to a contact piece riveting device. Background Art

[0002] The contact piece is an important part of the switch, and its performance directly affects the quality and service life of the switch. The contact piece needs a riveted contact head (also known as a rivet) as a contact point. At present, the rivets are mostly riveted to the contact piece by a mechanized riveting device. In the prior art, for example, in the patent document with publication number "CN210907944U", the riveting device usually includes a rivet feeding mechanism and a riveting machine. The rivet feeding mechanism is used to feed the rivet to the contact piece, and the riveting machine presses the rivet into the riveting hole of the contact piece to achieve riveting. However, this technical solution has at least the following defects: after each contact piece is riveted, it is necessary to remove and install another contact piece, which is inefficient, and the operator is required to take and place the contact piece in the working gap of the riveting machine, which poses certain safety hazards. Utility Model Content

[0003] The purpose of the utility model is to provide a contact riveting device to solve the above-mentioned defects of the prior art.

[0004] The utility model is realized by the following technical solutions:

[0005] A contact riveting device includes a workbench, on which is provided a riveting pressing mechanism for pressing down rivets to rivet them with the contacts, and a rivet feeding mechanism composed of a vibrating plate and a conveying track, and also includes a clamping mechanism for fixing the contacts, the clamping mechanism includes a tooling seat and a pressure plate, the tooling seat is provided with a plurality of slots for installing the contacts, the bottom of the slots is provided with avoidance through holes for avoiding rivets, the pressure plate is arranged above the tooling seat, and is used to press each contact installed in the slot; the direction of the slot connection line is defined as the horizontal direction, and the direction perpendicular to the slot connection line is defined as the longitudinal direction, and the clamping mechanism is connected to a horizontal driving mechanism for driving it to move horizontally.

[0006] Optionally, two clamping mechanisms are provided, and the two clamping mechanisms are driven by the same transverse driving mechanism; two riveting pressing mechanisms are provided in the transverse direction, and a rivet pressing mechanism for pressing the rivet into the riveting hole of the contact piece is provided above the end of the conveying track.

[0007] Optionally, a gasket loading mechanism is also provided on the workbench, which includes a hopper and a gasket conveyor belt. A gasket pressing mechanism for pressing the gasket into the slot is provided above the end of the gasket conveyor belt. A drop hole is provided at the bottom of the hopper, and the gasket conveyor belt is provided below the drop hole. The distance between the gasket conveyor belt and the bottom of the hopper is equal to the thickness of the gasket, or greater than the thickness of the gasket and less than the thickness of two gaskets.

[0008] Optionally, the clamping mechanism is connected to a longitudinal driving mechanism for driving it to move longitudinally, and the longitudinal driving mechanism is connected to the transverse driving mechanism.

[0009] Optionally, the transverse driving mechanism includes a slide and a linear module for driving the slide to move, the longitudinal driving mechanism includes a slide, the tooling seat is fixedly connected to the slide, the longitudinal driving mechanism includes a longitudinal screw rod, a driving motor and two longitudinal guide rods, the longitudinal guide rod is fixedly set at the bottom of the slide, the longitudinal screw rod is rotatably set at the bottom of the slide, the driving motor is connected to one end of the longitudinal screw rod, the slide is slidably connected to the longitudinal guide rod and cooperates with the longitudinal screw rod through a thread.

[0010] Optionally, a lifting screw is rotatably provided at one end of the slide, the lifting screw is connected to a lifting motor, a lifting guide rod is provided at the other end of the slide, and the pressure plate is slidably connected to the lifting guide rod and cooperates with the lifting screw through a thread.

[0011] Optionally, the workbench is provided with a qualified product conveyor belt and a defective product conveyor belt arranged in parallel in the longitudinal direction, and one side of the qualified product conveyor belt and the defective product conveyor belt is provided with a lifting mechanism for pushing down the contact piece on the clamping mechanism.

[0012] Optionally, the riveting pressing mechanism is provided with an industrial camera for visual inspection.

[0013] Optionally, the conveying track is provided with a material trough for accommodating rivet rods, and a stop block is provided at the head end of the conveying track, with a gap left between the stop block and the top surface of the conveying track, and the gap is equal to the thickness of the rivet head, or greater than the thickness of the rivet head and less than the entire length of the rivet.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: in the utility model, a plurality of slots for installing contacts are provided on the tooling seat, that is, a clamping mechanism can clamp a plurality of contacts, thereby improving work efficiency, and the contacts are removed and placed only after all contacts on the tooling seat are riveted, thereby avoiding safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure of a contact riveting device provided by the utility model;

[0017] Figure 2A schematic diagram of the structure of a contact riveting device provided by the utility model (hidden bracket, support frame and sealing plate);

[0018] Figure 3 It is a structural schematic diagram of the rivet feeding mechanism;

[0019] Figure 4 for Figure 3 Enlarged view of the middle stop block;

[0020] Figure 5 It is a structural schematic diagram of the gasket feeding structure;

[0021] Figure 6 It is a cross-sectional view of the gasket feeding mechanism;

[0022] Figure 7 is a structural schematic diagram of a lateral drive mechanism;

[0023] Figure 8 is a structural schematic diagram of the clamping mechanism;

[0024] Fig. 9 It is a structural schematic diagram of the tooling seat;

[0025] Fig.10 is a structural schematic diagram of a longitudinal drive mechanism;

[0026] Icons: 1- workbench, 2- riveted pressing structure, 3- industrial camera, 4- rivet feeding mechanism, 401- vibration plate, 402- conveying track, 4021- material trough, 403- material stopper, 5- clamping mechanism, 501- tooling seat, 5011- slot, 5012- avoidance hole, 502- pressure plate, 503- lifting screw, 504- lifting guide rod, 505- lifting motor, 6- horizontal driving mechanism, 601- slide plate, 6 02-linear module, 7-rivet pressing mechanism, 8-longitudinal driving mechanism, 801-longitudinal screw, 802-longitudinal guide rod, 803-driving motor, 804-slide, 9-gasket loading mechanism, 901-bin, 9011-dropping hole, 902-gasket conveyor belt, 10-qualified product conveyor belt, 11-defective product conveyor belt, 12-top feeding mechanism, 13-gasket pressing mechanism, 14-bracket, 15-support frame, 16-sealing plate. DETAILED DESCRIPTION

[0027] refer to Figure 1 and Figure 2A contact riveting device includes a workbench 1 and a clamping mechanism 5 for fixing the contact, the clamping mechanism 5 includes a tooling seat 501 and a pressure plate 502, the tooling seat 501 is provided with a plurality of slots 5011 for installing the contact, for example, in the present application, the tooling seat 501 is provided with ten slots 5011 (of course, other embodiments may also provide other numbers of slots 5011), that is, one workbench can clamp ten contact pieces at a time, the bottom of the slot 5011 is provided with an avoidance through hole 5012 for avoiding rivets, the pressure plate 502 is provided above the tooling seat 501, and is used to press each contact piece installed in the slot 5011.

[0028] The connecting direction of the card slots 5011 is defined as the horizontal direction, and the direction perpendicular to the connecting direction of the card slots 5011 is defined as the longitudinal direction. For example, in the present application, the card slots 5011 are spaced apart along the left and right directions of the workbench 1. The left and right directions in the figure are the horizontal directions, and the front and back directions in the figure are the longitudinal directions. The clamping mechanism 5 is connected to a horizontal driving mechanism 6 for driving it to move horizontally. The workbench 1 is provided with a riveting pressing mechanism for pressing the rivet down to rivet it with the contact piece, and a rivet feeding mechanism 4 composed of a vibration disk 401 and a conveying track 402. In actual applications, the bottom of the workbench 1 is supported by a bracket 14, and the actual height is ergonomic and easy to operate. A support frame 15 is provided on the top of the workbench 1, and sealing plates 16 are provided on three sides of the support frame 15, with one side open as the operating side.

[0029] On this basis, when working, the rivet feeding mechanism 4 delivers rivets, and the riveting pressing mechanism presses the rivets down to make them riveted with the contact piece. After each contact piece is riveted, the transverse driving mechanism 6 drives the clamping mechanism 5 to move a distance of a slot 5011 so as to rivet the next contact piece. This process is continued to complete the riveting of all contact pieces. It can be seen that one clamping mechanism 5 of the utility model can clamp multiple contact pieces, improve work efficiency, and the contact pieces are not taken out until all the contact pieces on the tooling seat 501 are riveted, avoiding safety hazards.

[0030] It is worth noting that if the rivet conveying mechanism delivers the rivets in the reverse direction (normally the push rod is at the bottom and the rivet head is at the top, but the reverse direction is when the rivet head is at the bottom and the rivet rod is at the top), the contact riveting will fail. For this reason, the present application has made the following improvements, referring to Figure 3 and Figure 4, the conveying track 402 is provided with a material trough 4021 for accommodating the rivet rod, and a material stopper 403 is provided at the head end of the conveying track 402. A gap is left between the material stopper 403 and the top surface of the conveying track 402. In this embodiment, the gap is equal to the thickness of the rivet head. In this way, the rivet rod is at the bottom (inserted into the material trough 4021) and the rivet top rod is at the top to pass through the gap. When the rivet direction is reversed, it will be blocked by the material stopper 403 and fall into the vibration plate 401, ensuring that the orientation of each rivet reaching the end of the conveying track 402 is correct. In other embodiments, the gap is greater than the thickness of the rivet head and less than the overall length of the rivet, which can also achieve the above purpose.

[0031] Reference again Figure 2 In this embodiment, two clamping mechanisms 5 are provided, and the two clamping mechanisms 5 are driven by the same transverse driving mechanism 6. Two riveting pressing mechanisms are provided in the transverse direction. A rivet pressing mechanism 7 for pressing the rivet into the riveting hole of the contact piece is provided above the end of the conveying track 402. In this way, during operation, the clamping mechanism 5 with the clamped contact piece is first moved to the end of the conveying track 402, and then combined with the transverse driving mechanism 6, so that each contact piece is sequentially facing the end of the conveying track 402, and the rivet pressing mechanism 7 presses the rivet at the end of the conveying track 402 into the riveting hole of the contact piece (it should be understood that a notch is provided at the end of the conveying track 402 to ensure that the rivet can be pressed down). Even if each contact piece receives a rivet (at this time, there is no rivet and it is not riveted with the contact piece), after the contact piece receives the rivet, the transverse driving mechanism 6 is used to move it to the bottom of the riveting pressing mechanism, and the riveting pressing mechanism presses down to deform the rivet to achieve riveting with the contact piece.

[0032] In addition, since two clamping mechanisms 5 are provided and the two clamping mechanisms 5 are driven by the same transverse driving mechanism 6, in actual applications, when the contact piece on one of the clamping mechanisms 5 is riveting the rivet, the other one can be at the end of the conveying track 402 to receive the rivet, thereby further improving efficiency.

[0033] In this embodiment, a gasket feeding mechanism 9 is also provided on the workbench 1. Those skilled in the art should understand that the gasket is only used when the contact piece is riveted, and is not used for other contact rivetings, and the gasket is loaded before the contact piece is placed in the slot 5011. On this basis, it is easy to understand that the process of riveting the static contact piece is gasket loading, contact piece clamping, receiving rivets, and rivet riveting.

[0034] refer to Figure 5 and Figure 6In this embodiment, the gasket feeding mechanism 9 includes a silo 901 and a gasket conveyor belt 902. A gasket pressing mechanism 13 for pressing the gasket into the card slot 5011 is provided above the end of the gasket conveyor belt 902 (it should be understood that a notch is provided at the end of the gasket conveyor belt 902 to ensure that the gasket can be pressed down); a drop hole 9011 is provided at the bottom of the silo 901, and the gasket conveyor belt 902 is provided below the drop hole 9011. In this embodiment, the distance between the gasket conveyor belt 902 and the bottom of the silo 901 is equal to the thickness of the gasket, so that the gaskets can be arranged one by one on the gasket conveyor belt 902. In other embodiments, the distance between the gasket conveyor belt 902 and the bottom of the silo 901 is greater than the thickness of the gasket and less than the thickness of two gaskets, which can also achieve the above purpose.

[0035] In this embodiment, the riveting pressing mechanism, the rivet pressing mechanism 7 and the gasket pressing mechanism 13 are all riveting machines. In actual application, a riveting machine of appropriate specifications is selected according to the pressing strength.

[0036] refer to Figure 7-10 In this embodiment, the clamping mechanism 5 is connected to a longitudinal driving mechanism 8 that drives it to move longitudinally, and the longitudinal driving mechanism 8 is connected to the transverse driving mechanism 6. In this way, the clamping mechanism 5 can not only move laterally but also longitudinally. In this way, in actual applications, the conveying track 402 of the rivet feeding mechanism 4 and the gasket conveyor belt 902 can be arranged on both sides of the longitudinal direction, and the longitudinal movement of the clamping mechanism 5 can be used to receive rivets and gaskets.

[0037] The transverse driving mechanism 6 includes a slide plate 601 and a linear module 602 for driving the slide plate 601 to move. When the linear module 602 is working, the slide plate 601, the longitudinal driving mechanism 8 and the clamping mechanism 5 can be driven to move transversely as a whole. The longitudinal driving mechanism 8 includes a slide 804, and the tooling seat 501 is fixedly connected to the slide 804. The longitudinal driving mechanism 8 includes a longitudinal screw rod 801, a driving motor 803 and two longitudinal guide rods 802. The longitudinal guide rod 802 is fixedly set at the bottom of the slide plate 601, and the longitudinal screw rod 801 is rotatably set at the bottom of the slide plate 601. The driving motor 803 is connected to one end of the longitudinal screw rod 801. The slide 804 is slidably connected to the longitudinal guide rod 802 and is threadedly matched with the longitudinal screw rod 801. In this way, when the driving motor 803 is working, it can drive the slide 804 and the clamping mechanism 5 to move longitudinally.

[0038] On the basis of the above, the setting method of the pressing plate 502 is as follows: a lifting screw rod 503 is rotatably set at one end of the slide 804, and the lifting screw rod 503 is connected to the lifting motor 505. A lifting guide rod 504 is set at the other end of the slide 804. The pressing plate 502 is slidably connected to the lifting guide rod 504 and is threadedly matched with the lifting screw rod 503. In this way, the lifting motor 505 can drive the pressing plate 502 to move up and down, so as to press or loosen the contact piece installed in the slot 5011 on the tooling seat 501. Of course, in other embodiments, the pressing plate 502 can also be connected in other ways, such as being connected and fixed to the tooling seat 501 or the slide 804 by screws.

[0039] On the basis that the clamping mechanism 5 can move longitudinally, the workbench 1 is provided with a qualified product conveyor belt 10 and a defective product conveyor belt 11 arranged in parallel along the longitudinal direction. The qualified product conveyor belt 10 and the defective product conveyor belt 11 are both provided with a push-up mechanism 12 on one side for pushing down the contact piece on the clamping mechanism. The push-up mechanism 12 is also a riveting machine. It is easy to understand that the riveting machine is installed in reverse here, that is, it pushes upward when working. Before working, the pressing plate 502 has been loosened, and the working head extends from the avoidance through hole 5012 to push down the contact piece. It should be understood that the riveted qualified products are pushed down and sent to the qualified product conveyor belt 10, and the riveted unqualified products (or the contact piece that the rivet is not received in place) are pushed down and sent to the defective product conveyor belt 11, so as to realize the classification and storage of qualified products and defective products. On this basis, the present embodiment is provided with an industrial camera 3 for visual inspection at the riveting pressing mechanism. On the one hand, the industrial camera 3 detects whether the contact piece receives the rivet in accordance with the requirements, and on the other hand, the industrial camera 3 detects whether the riveting is qualified.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A contact riveting device, comprising a workbench, a riveting pressing mechanism for pressing down a rivet to rivet the rivet with the contact, and a rivet feeding mechanism composed of a vibrating plate and a conveying track, characterized in that: It also includes a clamping mechanism for fixing the contacts, the clamping mechanism includes a tooling seat and a pressure plate, the tooling seat is provided with a number of slots for installing the contacts, the bottom of the slots are provided with avoidance holes for avoiding rivets, the pressure plate is arranged above the tooling seat, and is used to press each contact installed in the slot; the direction of the slot connection line is defined as horizontal, and the direction perpendicular to the slot connection line is defined as longitudinal, and the clamping mechanism is connected to a horizontal driving mechanism for driving it to move horizontally.

2. The contact riveting device according to claim 1, characterized in that: The clamping mechanisms are provided with two, and the two clamping mechanisms are driven by the same transverse driving mechanism; the riveting pressing mechanisms are provided with two in the transverse direction, and a rivet pressing mechanism for pressing the rivet into the riveting hole of the contact piece is provided above the end of the conveying track.

3. The contact riveting device according to claim 1, characterized in that: A gasket feeding mechanism is also provided on the workbench, which includes a hopper and a gasket conveyor belt. A gasket pressing mechanism for pressing the gasket into the slot is provided above the end of the gasket conveyor belt. A drop hole is provided at the bottom of the hopper, and the gasket conveyor belt is provided below the drop hole. The distance between the gasket conveyor belt and the bottom of the hopper is equal to the thickness of the gasket, or greater than the thickness of the gasket and less than the thickness of two gaskets.

4. The contact riveting device according to claim 3, characterized in that: The clamping mechanism is connected to a longitudinal driving mechanism for driving it to move longitudinally, and the longitudinal driving mechanism is connected to the transverse driving mechanism.

5. The contact riveting device according to claim 4, characterized in that: The transverse driving mechanism includes a slide plate and a linear module for driving the slide plate to move, the longitudinal driving mechanism includes a slide seat, the tooling seat is fixedly connected to the slide seat, the longitudinal driving mechanism includes a longitudinal screw rod, a driving motor and two longitudinal guide rods, the longitudinal guide rod is fixedly set at the bottom of the slide plate, the longitudinal screw rod is rotatably set at the bottom of the slide plate, the driving motor is connected to one end of the longitudinal screw rod, the slide seat is slidably connected to the longitudinal guide rod and cooperates with the longitudinal screw rod through a thread.

6. The contact riveting device according to claim 5, characterized in that: A lifting screw is rotatably arranged at one end of the slide, the lifting screw is connected to a lifting motor, a lifting guide rod is arranged at the other end of the slide, the pressing plate is slidably connected to the lifting guide rod and cooperates with the lifting screw through a thread.

7. The contact riveting device according to claim 4, characterized in that: The workbench is provided with a qualified product conveyor belt and a defective product conveyor belt arranged in parallel along the longitudinal direction, and one side of the qualified product conveyor belt and the defective product conveyor belt is provided with a lifting mechanism for lifting the contact piece on the clamping mechanism.

8. The contact riveting device according to any one of claims 1 to 7, characterized in that: The riveting pressing mechanism is provided with an industrial camera for visual inspection.

9. The contact riveting device according to any one of claims 1 to 7, characterized in that: The conveying track is provided with a material trough for accommodating rivet rods, and a material stop block is provided at the head end of the conveying track. A gap is left between the material stop block and the top surface of the conveying track, and the gap is equal to the thickness of the rivet head, or greater than the thickness of the rivet head and less than the overall length of the rivet.

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