A multi-station riveting machine

Abstract

The present invention relates to the technical field of rivet equipment, and more specifically, it relates to a multi-station riveting machine, including a feeding device for sequentially conveying rivets, a workbench for placing workpieces, and a manipulator; the manipulator is provided with a grab plate, the grab plate is slidably connected with an extrusion plate in a direction perpendicular to the upper surface of the grab plate, the grab plate is provided with a first driving member for driving the extrusion plate to slide in a direction close to and away from the grab plate, a plurality of discharge pipes are connected between the grab plate and the extrusion plate, the feeding device and the plurality of discharge pipes are connected through a conveying pipe, a plurality of moving blocks are slidably connected to the surface of the grab plate away from the extrusion plate, the moving blocks are all provided with through holes capable of connecting to the discharge pipes, and the grab plate is provided with a second driving member for driving the moving block to slide to stagger or align the through holes and the discharge pipes. The present invention has the advantages of high automation, improved production efficiency, and reduced production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of rivet equipment, and more particularly to a multi-station riveting machine. Background Art

[0002] Riveting machine (also known as riveting machine, rotary riveting machine, riveting machine, rolling riveting machine, etc.) is a new type of riveting equipment developed based on the principle of cold rolling. It refers to mechanical equipment that can rivet objects together with rivets. The equipment has a compact structure, stable performance, and convenient and safe operation. The riveting machine mainly relies on rotation and pressure to complete assembly. It is mainly used in occasions where rivets (hollow rivets, hollow rivets, solid rivets, etc.) are required for riveting. Common models include pneumatic, hydraulic and electric as well as single-head and double-head specifications. The common types are mainly automatic riveting machines (mainly for the riveting of semi-hollow rivet machines, which can automatically unload materials and have high riveting efficiency) and rotary riveting machines (rotary riveting machines are divided into pneumatic rotary riveting machines and hydraulic rotary riveting machines, which are mainly used for the riveting of solid rivets or larger hollow rivets).

[0003] Riveting machines are usually referred to as rotary riveting machines. According to the power mode, rotary riveting machines can be divided into pneumatic rotary riveting machines and hydraulic rotary riveting machines. They are mainly used for riveting of hollow rivets and other aspects. The riveting methods of rotary riveting machines are divided into radial riveting and swing riveting. The application of riveting machines is very wide and can be applied to various riveting process occasions: 1. Riveted materials: In addition to riveting low-carbon steel rivets, medium-carbon steel and stainless steel rivets can also be riveted. Of course, copper and aluminum rivets are also within the riveting range; 2. Riveted shapes: As long as the shape of the rivet head is changed, it can be riveted into various shapes. In addition, radial riveting machines can also be used for stamping, embossing and marking; 3. The riveting machine can also realize riveting on glass, plastic and ceramics; 4. Applicable industries: The cold rolling riveting method can be widely used in many industries such as precision machinery, textile equipment, steel furniture, building hardware, high and low voltage electrical appliances, hardware tools, automobiles, motorcycle accessories, etc., especially in automobile door locks, wipers, brakes, clutches, rear door stays, door hinges, glass lifters, carburetors, hand brakes, steering ball joints, motorcycle shock absorbers and other automobile and motorcycle accessories industries. However, the existing riveting machines have a low degree of automation, which not only increases people's labor, but also reduces processing efficiency, which is not conducive to the interests of the enterprise itself. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a multi-station riveting machine having the advantages of high automation, improved production efficiency and reduced production costs.

[0005] The above technical object of the present invention is achieved by the following technical solutions: a multi-station riveting machine, comprising a feeding device for sequentially conveying rivets, a workbench for placing workpieces, and a manipulator;

[0006] The manipulator is provided with a grabbing plate, which is slidably connected to an extruding plate in a direction perpendicular to the upper surface of the grabbing plate, and the grabbing plate is provided with a first driving member for driving the extruding plate to slide in a direction close to and away from the grabbing plate, and a plurality of discharge pipes are connected between the grabbing plate and the extruding plate, and the loading device and the plurality of discharge pipes are connected through a conveying pipe, and a plurality of moving blocks are slidably connected to the surface of the grabbing plate away from the extruding plate, and the moving blocks are all provided with through holes that can be connected to the discharge pipes, and the grabbing plate is provided with a second driving member for driving the moving blocks to slide so as to stagger or align the through holes and the discharge pipes.

[0007] Preferably, the feeding device comprises a plurality of vibration plates, a plurality of discharge tracks connected to the vibration plates, and a distributor arranged on the discharge tracks, and the distributor is connected to the feed pipe.

[0008] Preferably, the distributor includes a fixed block, the fixed block is provided with a feed trough connected to the discharge track, the fixed block is slidably connected to a movable block, the movable block is provided with a first semi-countersunk hole for accommodating rivets, the first semi-countersunk hole is provided at the end of the feed trough and is connected to the feed trough, the fixed block is provided with a second semi-countersunk hole for accommodating rivets and can be correspondingly connected with the first semi-countersunk hole, the movable block slides along the direction of the line between the end of the sliding groove and the second semi-countersunk hole, the fixed block is provided with a third driving member for driving the movable block to slide, when the first semi-countersunk hole and the second semi-countersunk hole are correspondingly connected, the first semi-countersunk hole and the second semi-countersunk hole constitute a through hole for accommodating rivets, and the through hole is connected with a pneumatic pushing device.

[0009] Preferably, a plurality of positioning posts are provided on the lower surface of the grab plate, and the plurality of positioning posts are of equal length and evenly distributed.

[0010] Preferably, the manipulator is a six-axis manipulator.

[0011] In summary, the present invention has the beneficial effects: when the riveting machine is working, first, the second driving member drives the through hole on the moving block to align with the discharge pipe, and then the feeding device conveys the rivets one by one to the multiple discharge pipes through the feeding pipe, and then the first driving member drives the extrusion plate to slide toward the grabbing plate, so that the rivet moves to the through hole through the discharge pipe, and finally the second driving member drives the moving block to slide, so that the through hole on the moving block and the discharge pipe are staggered, so that the rivet head abuts against the lower surface of the grabbing plate, and the manipulator applies downward pressure to press the rivet into the corresponding workpiece on the workbench. The whole process has a high degree of automation, improves production efficiency, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0013] Figure 2is a schematic diagram of some manipulators in an embodiment of the present invention;

[0014] Figure 3 is another perspective view of a portion of the manipulator in an embodiment of the present invention;

[0015] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0016] Figure 5 Schematic diagram of the structure of the distributor in the embodiment of the present invention.

[0017] Figure numerals: 1. feeding device; 11. vibration plate; 12. discharge track; 13. distributor; 131. fixed block; 132. feed trough; 133. movable block; 134. first half countersunk hole; 135. second half countersunk hole; 136. third driving member; 2. workbench; 3. manipulator; 31. grab plate; 32. extrusion plate; 33. first driving member; 34. discharge pipe; 35. moving block; 36. through hole; 37. second driving member; 38. positioning column. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0020] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] A multi-station riveting machine, see Figures 1 to 5 , comprising a feeding device 1 for sequentially conveying rivets, a workbench 2 for placing workpieces, and a manipulator 3;

[0023] The manipulator 3 is provided with a grabbing plate 31, and the grabbing plate 31 is slidably connected with an extruding plate 32 in a direction perpendicular to the upper surface of the grabbing plate 31. The grabbing plate 31 is provided with a first driving member 33 for driving the extruding plate 32 to slide in a direction close to and away from the grabbing plate 31. A plurality of discharge pipes 34 are connected between the grabbing plate 31 and the extruding plate 32. The loading device 1 and the plurality of discharge pipes 34 are connected through a conveying pipe (not shown in the figure). A plurality of moving blocks 35 are slidably connected to the surface of the grabbing plate 31 away from the extruding plate 32. The moving blocks 35 are all provided with through holes 36 that can be connected to the discharge pipes 34. The grabbing plate 31 is provided with a second driving member 37 for driving the moving blocks 35 to slide so as to stagger or align the through holes 36 and the discharge pipes 34.

[0024] When the riveting machine is working, first, the second driving member 37 drives the through hole 36 on the moving block 35 to align with the discharge pipe 34, and then the feeding device 1 conveys the rivets one by one to the multiple discharge pipes 34 through the feeding pipe, and then the first driving member 33 drives the extrusion plate 32 to slide toward the grab plate 31, so that the rivet moves to the through hole 36 through the discharge pipe 34, and finally the second driving member 37 drives the moving block 35 to slide, so that the through hole 36 on the moving block 35 and the discharge pipe 34 are staggered, so that the rivet head abuts against the lower surface of the grab plate 31, and the manipulator 3 applies downward pressure to press the rivet into the corresponding workpiece on the workbench 2. The whole process has a high degree of automation, improves production efficiency, and reduces production costs.

[0025] In this embodiment, a total of 16 discharge pipes 34 are provided, corresponding to 16 workstations, which can meet the needs of riveting work at multiple workstations. Of course, according to actual conditions, the riveting machine can also only set up some of the workstations, or continue to increase the number of workstations. The first drive member 33 and the second drive member 37 are both cylinders. Of course, according to actual conditions, the first drive member 33 and the second drive member 37 can also be set to a motor-driven screw mechanism or a motor-driven rack and pinion mechanism.

[0026] Specifically, the feeding device 1 includes a plurality of vibration plates 11, a plurality of discharge tracks 12 connected to the vibration plates 11, and a distributor 13 provided on the discharge tracks 12, wherein the distributor 13 is connected to the feeding pipe. In this embodiment, a total of four vibration plates 11 are provided, each vibration plate 11 is divided into four discharge tracks 12, and each discharge track 12 is equipped with a distributor 13, thereby achieving synchronous feeding of 16 stations.

[0027] Specifically, the distributor 13 includes a fixed block 131, which is provided with a feed trough 132 connected to the discharge track 12, and the fixed block 131 is slidably connected with a movable block 133. The movable block 133 is provided with a first semi-counterfeit hole 134 for accommodating rivets, and the first semi-counterfeit hole 134 is provided at the end of the feed trough 132 and is connected to the feed trough 132. The fixed block 131 is provided with a second semi-counterfeit hole 135 for accommodating rivets and can be correspondingly connected with the first semi-counterfeit hole 134. The movable block 133 slides along the connecting direction between the end of the sliding groove and the second semi-counterfeit hole 135. The fixed block 131 is provided with a third driving member 136 for driving the movable block 133 to slide. When the first semi-counterfeit hole 134 and the second semi-counterfeit hole 135 are correspondingly connected, the first semi-counterfeit hole 134 and the second semi-counterfeit hole 135 constitute a through hole 36 for accommodating rivets, and the through hole 36 is connected with a pneumatic driving device (not shown in the figure).

[0028] Before discharging, the third driving member 136 drives the first half countersunk hole 134 on the movable block 133 to communicate with the end of the feed trough 132. When discharging, the rivet slides to the feed trough 132 through the discharging track 12, and then feeds one by one in the feed trough 132. When the rivet moves into the first half countersunk hole 134, the third driving member 136 drives the movable block 133 to slide, and pushes the rivet in the first half countersunk hole 134 to the second half countersunk hole 135. At this time, the first half countersunk hole 134 and the second half countersunk hole 135 constitute a through hole 36 for accommodating the rivet. Finally, the air pressure pushing device blows air into the through hole 36 to give the rivet power, and fills the rivet into the discharge pipe 34 along the feeding pipe to complete the feeding process. In this embodiment, the third driving member 136 is a cylinder.

[0029] Specifically, a plurality of positioning posts 38 are provided on the lower surface of the grab plate 31. The plurality of positioning posts 38 are of equal length and evenly distributed. The arrangement of the positioning posts 38 can press the workpiece tightly to ensure stability during riveting.

[0030] Specifically, the robot 3 is a six-axis robot 3 .

[0031] The above embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A working method of a multi-station riveting machine, characterized in that: The multi-station riveting machine comprises a loading device for sequentially conveying rivets, a workbench for placing workpieces, and a manipulator; the manipulator is provided with a grab plate, the grab plate is slidably connected with an extrusion plate in a direction perpendicular to the upper surface of the grab plate, the grab plate is provided with a first driving member for driving the extrusion plate to slide in a direction approaching and away from the grab plate, a plurality of discharge pipes are connected between the grab plate and the extrusion plate, the loading device and the plurality of discharge pipes are connected through a conveying pipe, a plurality of moving blocks are slidably connected to the surface of the grab plate away from the extrusion plate, the moving blocks are all provided with through holes capable of communicating with the discharge pipes, and the grab plate is provided with a second driving member for driving the moving block to slide so as to stagger or align the through holes and the discharge pipes; When the multi-station riveting machine is working, first, the second driving member drives the through hole on the moving block to align with the discharge pipe, and then the loading device conveys the rivets one by one to multiple discharge pipes through the delivery pipe. After that, the first driving member drives the extrusion plate to slide toward the grabbing plate, so that the rivet moves to the through hole through the discharge pipe. Finally, the second driving member drives the moving block to slide, so that the through hole on the moving block and the discharge pipe are staggered, so that the rivet head abuts against the lower surface of the grabbing plate, and the manipulator applies downward pressure to press the rivet into the corresponding workpiece on the workbench.

2. The working method of a multi-station riveting machine according to claim 1, characterized in that: The feeding device comprises a plurality of vibration plates, a plurality of discharge tracks connected to the vibration plates, and a distributor arranged on the discharge tracks, wherein the distributor is connected to the conveying pipe.

3. The working method of a multi-station riveting machine according to claim 2, characterized in that: The distributor includes a fixed block, which is provided with a feed trough connected to a discharge track, and the fixed block is slidably connected to a movable block, and the movable block is provided with a first semi-counterfeit hole for accommodating rivets, and the first semi-counterfeit hole is provided at the end of the feed trough and is connected to the feed trough, and the fixed block is provided with a second semi-counterfeit hole for accommodating rivets and can be correspondingly connected with the first semi-counterfeit hole, and the movable block slides along the direction of the line between the end of the feed trough and the second semi-counterfeit hole, and the fixed block is provided with a third driving member for driving the movable block to slide, and when the first semi-counterfeit hole and the second semi-counterfeit hole are correspondingly connected, the first semi-counterfeit hole and the second semi-counterfeit hole constitute a discharge through hole for accommodating rivets, and the discharge through hole is connected with a pneumatic pushing device.

4. The working method of a multi-station riveting machine according to claim 1, characterized in that: A plurality of positioning posts are arranged on the lower surface of the grab plate, and the plurality of positioning posts are of equal length and evenly distributed.

5. The working method of a multi-station riveting machine according to claim 1, characterized in that: The manipulator is a six-axis manipulator.

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