Outside-station conveying feeder for electrode caps

Abstract

The utility model belongs to the technical field of electrode cap feeders, and particularly relates to an electrode cap out-of-station conveying feeder which comprises a vibration disc, an electrode cap sorting mechanism, an electrode cap conveying pipe, a conveying pipe shifting mechanism and an electrode cap positioning and grabbing mechanism, and the conveying pipe shifting mechanism and the electrode cap positioning and grabbing mechanism are arranged on the inner side of a welding line body fence. The vibration disc and the electrode cap sorting mechanism are arranged on the outer side of the welding line body fence. The electrode cap conveying device has the advantages that the electrode caps can be conveyed to the inner side from the outer side of a welding assembly line body fence, new electrode caps are continuously provided for a welding robot on a welding assembly line, the number of times of filling the electrode caps is greatly reduced, the time of line stopping and incoming line filling is shortened, production accidents are reduced, and the production efficiency is improved. The workload of workers is reduced, and time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrode cap feeders, in particular to an electrode cap off-station conveying feeder. Background Art

[0002] At present, welding production lines are generally narrow. After the electrode cap feeder is installed inside the wire body, when the feeder needs to add a new electrode cap, the wire body needs to be stopped and filled with wire, which causes various problems such as waste of line stoppage and potential safety hazards for on-site personnel. Utility Model Content

[0003] The utility model aims to provide an off-site delivery feeder for electrode caps, so as to solve the problem in the prior art that it is time-consuming and labor-intensive to add new electrode caps to a welding production line.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An electrode cap off-site delivery feeder comprises a vibration plate, an electrode cap sorting mechanism, an electrode cap delivery pipe, a delivery pipe shifting mechanism and an electrode cap positioning and grabbing mechanism. The delivery pipe shifting mechanism and the electrode cap positioning and grabbing mechanism are used to be arranged on the inner side of a welding line fence, the vibration plate and the electrode cap sorting mechanism are used to be arranged on the outer side of the welding line fence, the electrode cap delivery pipe comprises an input end, a delivery pipe body and an output end,

[0006] The electrode cap sorting mechanism is provided with an electrode cap receiving port, an electrode cap releasing port and an air inlet. The discharge port of the vibration plate is connected with the electrode cap receiving port of the electrode cap sorting mechanism. The electrode cap releasing port of the electrode cap sorting mechanism is connected with the input end of the electrode cap conveying pipe. The air inlet of the electrode cap sorting mechanism is connected with an air blowing device. The air blowing device is used to blow the electrode cap from the electrode cap releasing port of the electrode cap sorting mechanism to the output end of the electrode cap conveying pipe via the input end of the electrode cap conveying pipe.

[0007] The delivery tube shifting mechanism is used to drive the output end of the electrode cap delivery tube to move above the electrode cap positioning and grasping mechanism, so that the output end of the electrode cap delivery tube moves to a position corresponding to the electrode cap positioning and grasping mechanism, or the output end of the electrode cap delivery tube leaves the electrode cap positioning and grasping mechanism.

[0008] The electrode cap positioning and grabbing mechanism is used to grab and clamp the electrode cap dropped from the output end of the electrode cap conveying tube.

[0009] The beneficial effect of the electrode cap off-site delivery feeder provided by the utility model is that: compared with the prior art, multiple electrode caps are arranged in order and delivered to the electrode cap sorting mechanism in sequence through the vibration disk, the electrode caps are blown from the electrode cap release port of the electrode cap sorting mechanism to the output end of the electrode cap delivery tube through the input end of the electrode cap delivery tube by the blowing device, the output end of the electrode cap delivery tube is driven to move above the electrode cap positioning and grasping mechanism by the delivery tube shifting mechanism, the electrode cap positioning and grasping mechanism is used to grasp and clamp the electrode cap dropped from the output end of the electrode cap delivery tube, so as to facilitate the welding robot's welding gun to install the electrode cap, the utility model can transport the electrode cap from the outside to the inside of the welding line fence, and continuously provide new electrode caps to the welding robot on the welding production line, greatly reducing the number of electrode cap filling times, reducing the time for line stop and line filling and the occurrence of production accidents, reducing the workload of staff, and saving time and effort.

[0010] In one of the embodiments, the conveying pipe body is erected above the welding line fence.

[0011] In one embodiment, a longitudinal conveying channel for conveying electrode caps is provided at the discharge port of the vibration plate, and the discharge port of the longitudinal conveying channel is connected to the electrode cap receiving port of the electrode cap sorting mechanism.

[0012] The electrode cap sorting mechanism comprises a transverse conveying channel, a slider and a first cylinder. The slider is arranged in the transverse conveying channel. The slider is provided with a receiving groove for accommodating the electrode cap. The electrode cap receiving port, the electrode cap releasing port and the air inlet are connected with the transverse conveying channel.

[0013] The piston rod of the first cylinder is connected to the slider. When the piston rod of the first cylinder extends and retracts, it drives the slider to move in the transverse conveying channel so that the position of the accommodating groove on the slider corresponds to the electrode cap receiving port or the electrode cap releasing port.

[0014] When the piston rod of the first cylinder is retracted and the position of the receiving groove corresponds to the position of the electrode cap receiving port, an electrode cap located at the front of the longitudinal conveying channel enters the receiving groove;

[0015] The piston rod of the first cylinder extends to drive the slider to move along the transverse conveying channel until the positioning groove corresponds to the electrode cap release port, and the blowing device blows the electrode cap in the positioning groove to the input end and output end of the electrode cap conveying pipe through the electrode cap release port.

[0016] In one embodiment, the electrode cap receiving port is located on the side of the transverse conveying channel, the electrode cap releasing port is located on the top of the transverse conveying channel, and the air inlet is located on the bottom of the transverse conveying channel.

[0017] In one of the embodiments, the electrode cap sorting mechanism includes a shell, the interior of the shell has the transverse conveying channel, the side wall of the shell is provided with a screw hole, an adjusting screw is passed through the screw hole, the side wall of the shell is threadedly connected with the adjusting screw, the nut end of the adjusting screw is located on the outside of the shell, the screw rod of the adjusting screw extends into the transverse conveying channel, the screw rod of the adjusting screw can abut against the slider to limit the slider, so that when the slider moves along the transverse conveying channel to the position corresponding to the positioning groove and the electrode cap release port under the drive of the first cylinder, the accommodating groove is aligned with the electrode cap release port.

[0018] In one embodiment, the delivery tube displacement mechanism includes a second cylinder and a delivery tube mounting seat. The delivery tube mounting seat is provided with a delivery tube mounting hole. The output end of the delivery tube is inserted into the delivery tube mounting hole. The piston rod of the second cylinder is connected to the delivery tube mounting seat. When the piston rod of the second cylinder is extended and retracted, it drives the delivery tube mounting seat to move, thereby driving the output end of the electrode cap delivery tube to move above the electrode cap positioning and grasping mechanism.

[0019] In one of the embodiments, the electrode cap positioning and grasping mechanism includes a finger cylinder and two clamps, the two clamps are respectively connected to two fingers of the finger cylinder, the finger cylinder can drive the two clamps to clamp or loosen, and arc grooves are provided on the inner sides of the two clamps, and the shape of the arc grooves is adapted to the outer surface of the electrode cap.

[0020] In one of the embodiments, the electrode cap positioning and grasping mechanism also includes a finger cylinder mounting seat, the finger cylinder is mounted on the finger cylinder mounting seat, a limiting hole is provided on the finger cylinder mounting seat, the limiting hole is located directly below the arc groove of the two clamping jaws, a pressure column is provided in the limiting hole, the middle part of the pressure column is passed through the limiting hole, there is a gap between the pressure column and the limiting hole, the pressure column can slide up and down in the limiting hole, the upper and lower ends of the pressure column are provided with limiting flanges, the limiting flanges are used to prevent the pressure column from slipping out of the limiting hole.

[0021] In one of the embodiments, an electrode cap flipping mechanism is further included, and the electrode cap positioning and grasping mechanism is installed on the electrode cap flipping mechanism, and the electrode cap flipping mechanism is used to drive the electrode cap positioning and grasping mechanism to flip 180 degrees in the vertical direction.

[0022] In one embodiment, the electrode cap flipping mechanism comprises a rotating cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 This is a schematic structural diagram of an electrode cap off-site delivery feeder according to an embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the electrode cap sorting mechanism of the electrode cap off-station conveying feeder according to an embodiment of the utility model;

[0026] Figure 3 Schematic diagram of the disassembled electrode cap sorting mechanism of the electrode cap off-site delivery feeder according to the present invention Figure 1 ;

[0027] Figure 4 Schematic diagram of the disassembled electrode cap sorting mechanism of the electrode cap off-site delivery feeder according to the present invention Figure 2 ;

[0028] Figure 5 It is a structural schematic diagram of a bracket, a conveying tube shifting mechanism, an electrode cap positioning and grabbing mechanism, and an electrode cap flipping mechanism of an electrode cap off-site conveying and feeding device according to an embodiment of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the electrode cap positioning and grasping mechanism and the electrode cap flipping mechanism of the electrode cap off-site transport feeder according to an embodiment of the utility model.

[0030] Among them, the reference numerals in the figure are:

[0031] 1. Electrode cap conveying pipe; 2. Welding line fence; 3. Electrode cap sorting mechanism; 30. Horizontal conveying channel; 301. Electrode cap receiving port; 302. Electrode cap releasing port; 303. Air inlet; 304. Screw hole; 31. First cylinder; 32. Slider; 320. Accommodating groove; 33. Shell; 4. Electrode cap; 40. Longitudinal conveying channel; 5. Conveying pipe shifting mechanism; 51. Conveying pipe mounting seat; 510. Conveying pipe mounting hole; 6. Electrode cap positioning and grasping mechanism; 61. Clamp; 610. Arc groove; 62. Pressurizing column; 63. Finger cylinder; 64. Finger cylinder mounting seat; 640. Limiting hole; 7. Electrode cap flipping mechanism; 71. Rotating cylinder; 8. Bracket; 91. First position sensor; 92. Second position sensor; 93. Third position sensor; 94. Fourth position sensor; 95. Fifth position sensor. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", etc. 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, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1 As shown, the electrode cap off-site delivery feeder provided by the utility model includes a vibration plate (not shown in the figure), an electrode cap sorting mechanism 3, an electrode cap delivery pipe 1, a delivery pipe shifting mechanism 5 and an electrode cap positioning and grabbing mechanism 6. The delivery pipe shifting mechanism 5 and the electrode cap positioning and grabbing mechanism 6 are arranged on the inner side of the welding line fence 2, that is, the side where the welding robot is located. The vibration plate and the electrode cap sorting mechanism 3 are arranged on the outer side of the welding line fence 2.

[0037] See also Figures 2 to 4, the electrode cap sorting mechanism 3 is provided with an electrode cap receiving port 301, an electrode cap releasing port 302 and an air inlet 303. The discharge port of the vibration disk is connected to the electrode cap receiving port 301 of the electrode cap sorting mechanism 3, and the vibration disk is used to arrange multiple electrode caps 4 in order and transport them to the electrode cap sorting mechanism in sequence. The vibration disk is an auxiliary feeding device, which can automatically and orderly arrange disordered workpieces in an orderly and accurate manner through vibration and transport them to the next process. The components of the vibration disk and how the components are connected belong to mature existing technologies and will not be repeated here. The electrode cap releasing port 302 of the electrode cap sorting mechanism 3 is connected to the input end of the electrode cap delivery tube 1. The air inlet 303 of the electrode cap sorting mechanism 3 is connected to a blowing device (not shown in the figure). The blowing device is used to blow the electrode cap from the electrode cap releasing port 302 of the electrode cap sorting mechanism 3 to the output end of the electrode cap delivery tube 1 via the input end of the electrode cap delivery tube 1.

[0038] The delivery tube shifting mechanism 5 is used to drive the output end of the electrode cap delivery tube 1 to move above the electrode cap positioning and grasping mechanism 6, so that the output end of the electrode cap delivery tube 1 moves to a position corresponding to the electrode cap positioning and grasping mechanism 6, or to make the output end of the electrode cap delivery tube 1 leave the electrode cap positioning and grasping mechanism 6.

[0039] The electrode cap positioning and grabbing mechanism 6 is used to grab and clamp the electrode cap 4 dropped from the output end of the electrode cap delivery tube. The electrode cap positioning and grabbing mechanism 6 can be connected to the welding gun of the welding robot to facilitate the installation of the electrode cap on the welding gun of the welding robot.

[0040] The electrode cap off-site delivery feeder provided by the utility model can automatically deliver the electrode caps from outside the line to the corresponding positions of the welding production line. Pouring 500 electrode caps into the vibration plate at a time can greatly reduce the number of times the electrode caps are filled, reduce the time for line stoppage and line filling, and the occurrence of production accidents, reduce the workload of the staff, and save time and effort.

[0041] Compared with the prior art, the electrode cap off-site conveying and supplying device provided by the utility model arranges a plurality of electrode caps in order through a vibration disk and conveys them to the electrode cap sorting mechanism 3 in sequence; the electrode caps are blown from the electrode cap release port of the electrode cap sorting mechanism 3 to the output end of the electrode cap conveying tube 1 through the input end of the electrode cap conveying tube 1 by a blowing device; the output end of the electrode cap conveying tube 1 is driven to move above the electrode cap positioning and grasping mechanism 6 by the conveying tube shifting mechanism 5; the electrode cap positioning and grasping mechanism 6 is used to grasp and clamp the electrode cap 4 dropped from the output end of the electrode cap conveying tube 1 to facilitate the welding robot's welding gun to install the electrode cap; the utility model can convey the electrode cap from the outside to the inside of the welding line fence, continuously provide new electrode caps to the welding robot on the welding production line, greatly reduce the number of electrode cap filling times, reduce the time of line stop and line filling and the occurrence of production accidents, reduce the workload of the staff, and save time and effort.

[0042] In one embodiment, the electrode cap delivery tube includes an input end, a delivery tube body and an output end, and the delivery tube body is mounted above the welding line fence 2. The electrode cap delivery tube can be a transparent Pu gas tube, and the electrode cap delivery tube is transparent, which is convenient for observing the position of the electrode cap in the tube. The inner diameter of the electrode cap delivery tube is 3mm larger than the outer diameter of the electrode cap.

[0043] In one embodiment, see Figure 1 and Figure 3 A longitudinal conveying channel 40 for conveying electrode caps is provided at the discharge port of the vibration disk. The width of the longitudinal conveying channel 40 is adapted to the outer diameter of the electrode cap 4 . The discharge port of the longitudinal conveying channel 40 is connected to the electrode cap receiving port 301 of the electrode cap sorting mechanism 3 .

[0044] See also Figures 2 to 4 The electrode cap sorting mechanism 3 includes a transverse conveying channel 30, a slider 32 and a first cylinder 31. The slider 32 is arranged in the transverse conveying channel 30. The width of the slider 32 is adapted to the width of the transverse conveying channel 30. The slider 32 is provided with a receiving groove 320 for accommodating the electrode cap. The electrode cap receiving port 301, the electrode cap releasing port 302 and the air inlet 303 are all connected to the transverse conveying channel 30. The air blowing device includes an air compressor, and the air inlet is connected to the air compressor.

[0045] The piston rod of the first cylinder 31 is connected to the slider 32. When the piston rod of the first cylinder 31 extends and retracts, it drives the slider 32 to move in the transverse conveying channel 30 so that the position of the accommodating groove 320 on the slider 32 corresponds to the electrode cap receiving port 301 or the electrode cap releasing port 302. When the piston rod of the first cylinder 31 retracts and the position of the accommodating groove 320 corresponds to the electrode cap receiving port 301, the electrode cap 4 located at the front of the longitudinal conveying channel 40 enters the accommodating groove 320; when the piston rod of the first cylinder 31 extends, it drives the slider 32 to move along the transverse conveying channel 30 to the position where the accommodating groove 320 corresponds to the electrode cap releasing port 302, and the blowing device (air compressor) blows the electrode cap 4 in the accommodating groove 320 to the input end and output end of the electrode cap conveying pipe 1 through the electrode cap releasing port 302. By setting the accommodating groove 320 on the slider 32, the accommodating groove 320 can only accommodate one electrode cap at a time, so that the electrode caps 4 can be transported one by one and in an orderly manner.

[0046] Furthermore, the electrode cap receiving port 301 is located at the side of the transverse conveying channel 30 , the electrode cap releasing port 302 is located at the top of the transverse conveying channel 30 , and the air inlet 303 is located at the bottom of the transverse conveying channel 30 .

[0047] Optionally, the air inlet 303 is disposed directly below the electrode cap release port 302 , and the diameter of the air inlet 303 is smaller than the outer diameter of the electrode cap 4 to prevent the electrode cap 4 from falling from the air inlet 303 .

[0048] In one embodiment, see Figure 4 The electrode cap sorting mechanism includes a shell 33, the shell 33 has the transverse conveying channel 30, the side wall of the shell 33 is provided with a screw hole 304, the screw hole 304 is penetrated with an adjusting screw (not shown in the figure), the nut end of the adjusting screw is located outside the shell 33, the screw rod of the adjusting screw passes through the screw hole 304 and extends into the transverse conveying channel 30, and the screw rod of the adjusting screw can abut against the slider 32 to limit the slider 32. By turning the adjusting screw, the position of the slider 32 in the transverse conveying channel 30 can be adjusted, so that when the slider 32 is driven by the first cylinder 31 to move along the transverse conveying channel to the position where the accommodating groove 320 corresponds to the electrode cap release port 302, the accommodating groove 320 can be aligned with the electrode cap release port 302.

[0049] In one embodiment, see Figure 1 and Figure 5 , and also includes a bracket 8, and the delivery pipe displacement mechanism 5 includes a second cylinder 52 and a delivery pipe mounting seat 51. The delivery pipe mounting seat 51 is provided with a delivery pipe mounting hole 510, and the output end of the electrode cap delivery pipe 1 is inserted into the delivery pipe mounting hole 510. The second cylinder 52 can be a three-axis cylinder. The second cylinder 52 is mounted on the bracket 8, and the end of the piston rod of the second cylinder 52 is connected to the delivery pipe mounting seat 51. When the piston rod of the second cylinder 52 is extended and retracted, it drives the delivery pipe mounting seat 51 to move, thereby driving the output end of the electrode cap delivery pipe 1 to move above the electrode cap positioning and grasping mechanism 6. Specifically, when the piston rod of the second cylinder 52 is extended, it drives the output end of the electrode cap delivery pipe 1 to move to the top of the electrode cap positioning and grasping mechanism 6; when the piston rod of the second cylinder 52 is retracted, it drives the output end of the electrode cap delivery pipe 1 to leave the top of the electrode cap positioning and grasping mechanism 6 to avoid the welding robot, thereby facilitating the welding robot's welding gun to install the electrode cap.

[0050] In one embodiment, see Figure 5 and Figure 6The electrode cap positioning and grasping mechanism 6 includes a finger cylinder 63 and two clamps 61. The two clamps 61 are provided with an arc groove 610 on the inner sides facing each other, and the shape of the arc groove 610 is adapted to the outer surface of the electrode cap 4. The two clamps 61 are respectively connected to the two fingers of the finger cylinder 63, and the finger cylinder 63 can drive the two clamps 61 to clamp or loosen. The finger cylinder can also be called a pneumatic finger or a pneumatic clamping finger. It is an actuator that uses compressed air as a power source to clamp or grasp workpieces. Its main function is to replace human grasping work. The finger cylinder 63 of this embodiment can adopt a parallel clamp type finger cylinder with mature technology. Its working principle is: the fingers of the parallel clamp are actuated by two pistons, and each piston is connected to the finger by a roller and a double crank to form a special drive unit. In this way, the fingers always move axially and concentrically, and each finger cannot move alone.

[0051] In one embodiment, see Figure 5 and Figure 6 The electrode cap positioning and grasping mechanism 6 also includes a finger cylinder mounting seat 64, and the finger cylinder 63 is mounted on the finger cylinder mounting seat 64. A limiting hole 640 is provided on the finger cylinder mounting seat 64. The limiting hole 640 is located directly below the arc groove 610 of the two clamping jaws 61. In other words, the limiting hole 640 is arranged directly below the electrode cap when the two clamping jaws 61 embrace each other to clamp the electrode cap. A pressure column 62 is provided in the limiting hole 640, and the middle part of the pressure column 62 is penetrated in the limiting hole 640. There is a gap between the pressure column 62 and the limiting hole 640, and the pressure column 62 can slide up and down in the limiting hole 640. The upper and lower ends of the pressure column 62 are provided with limiting flanges, and the limiting flanges are used to prevent the pressure column 62 from slipping out of the limiting hole 640. The pressurizing column 62 can slide up and down. When the welding gun clamps the electrode cap and the pressurizing column 62 up and down during the cap installation process, the pressurizing force belongs to the internal force of the welding gun structure, has no external force on the conveying system, and plays a protective role on the equipment.

[0052] In one embodiment, see Figure 5 and Figure 6The electrode cap off-site conveying and feeding device provided by the utility model also includes an electrode cap flipping mechanism 7, which is mounted on a bracket 8, and an electrode cap positioning and grasping mechanism 6 is mounted on the electrode cap flipping mechanism 7, and the electrode cap flipping mechanism 7 is used to drive the electrode cap positioning and grasping mechanism 6 to flip 180 degrees in the vertical direction. The electrode cap flipping mechanism 7 can adopt a rotary cylinder 71 with mature technology. The rotary cylinder is a pneumatic actuator that uses compressed air to drive the output shaft to perform reciprocating rotation within a certain angle range. When the robot executes the cap installation program, the electrical control system will automatically determine whether the electrode cap flipping mechanism needs to perform a flipping action based on the upper and lower cap signals sent by the robot. For example, when the cap needs to be installed, the electrode cap flipping mechanism automatically flips 180 degrees and stands by, and when the cap needs to be installed, the electrode cap flipping mechanism does not perform the action and stands by.

[0053] In one embodiment, see Figure 2 The electrode cap sorting mechanism 3 is provided with a first position sensor 91, which is used to detect that when the positions of the accommodating groove 320 and the electrode cap receiving opening 301 correspond, an electrode cap 4 located at the front of the longitudinal conveying channel 40 enters the accommodating groove 320.

[0054] See also Figure 5 A second position sensor 92 is provided on the delivery tube mounting seat 51. The blowing device blows the electrode cap from the electrode cap release port of the electrode cap sorting mechanism 3 to the output end of the electrode cap delivery tube 1 via the input end of the electrode cap delivery tube 1. The second position sensor 92 is used to detect whether the electrode cap is delivered to the output end of the electrode cap delivery tube 1. After the second position sensor 92 detects that the electrode cap is delivered to the position, the delivery tube shifting mechanism drives the delivery tube mounting seat 51 to retreat, and the clamp 61 clamps the electrode cap. The first position sensor 91 and the second position sensor 92 can be proximity switches.

[0055] In one embodiment, see Figure 6, the electrode cap flipping mechanism (rotating cylinder 71) is provided with two third position sensors 93 for detecting the position of the rotating cylinder 71. The third position sensor 93 can sense that the rotating cylinder 71 is at the zero position or the 180-degree flip position, thereby facilitating the robot to install the cap. The finger cylinder 63 of the electrode cap positioning and grasping mechanism 6 is provided with two fourth position sensors 94 for detecting the position of the clamping jaw 61. The fourth position sensor 94 can sense that the clamping jaw 61 is in a loose state or a clamped state. The finger cylinder 63 is also provided with a fifth position sensor 95 for detecting whether there is an electrode cap on the electrode cap positioning and grasping mechanism 6. By setting each position sensor, the automation level of the system can be improved. How to install the third position sensor 93 on the rotating cylinder 71, and how to install the fourth position sensor 94 and the fifth position sensor 95 on the finger cylinder 63 belong to the prior art and will not be repeated here. The position sensor on the cylinder can use a magnetic switch, or a proximity switch, a photoelectric switch, etc.

[0056] The method of conveying electrode caps by the utility model's electrode cap off-station conveying feeder is as follows:

[0057] S1. Pour several new electrode caps into the vibration plate, which automatically arranges the electrode caps. The arranged electrode caps enter the longitudinal conveying channel, and the front electrode cap enters the receiving groove of the slider of the electrode cap sorting mechanism. When the first position sensor above the electrode cap sorting mechanism senses the electrode cap, the first cylinder piston rod of the electrode cap sorting mechanism is pushed out to push the electrode cap to the input end of the electrode cap conveying tube and directly below the electrode cap release port. There is an air inlet below the electrode cap release port.

[0058] S2. When the first position sensor of step S1 receives the signal, the electrode cap grasping mechanism and the electrode cap flipping mechanism are reset to the initial state. The system is designed with a third position sensor and a fourth position sensor for sensing whether the electrode cap grasping mechanism and the electrode cap flipping mechanism are reset to the initial state. After resetting, the output end of the electrode cap delivery tube is pushed out by the second cylinder and aligned with the electrode cap positioning grasping mechanism.

[0059] S3. When the electrode cap delivery tube is aligned with the electrode cap positioning and grasping mechanism, the air blowing device blows air to the air inlet, and the electrode cap is transported along the pipeline inside the electrode cap delivery tube to the electrode cap grasping mechanism.

[0060] S4. During the electrode cap conveying process in the previous step, the second position sensor on the conveying tube mounting seat senses the passage of the electrode cap. After a system delay of 2 seconds, the electrode cap positioning and grasping mechanism grasps and fixes the electrode cap, and the air blowing is turned off at the same time. The piston rod of the second cylinder retracts to drive the output end of the electrode cap conveying tube to reset, the electrode cap sorting mechanism resets, and the vibration disk starts conveying. Then the system automatically executes step S1. Since the electrode cap positioning and grasping mechanism grasps the electrode cap, the fifth position sensor outputs a cap signal in front, and the system enters a waiting state.

[0061] S5. When the robot executes the cap-installing program, the electrode cap flipping mechanism will automatically judge according to the up and down cap signals sent by the robot. When the cap needs to be installed, the flipping mechanism automatically flips 180 degrees and stands by. When the cap needs to be installed, the flipping mechanism does not perform the action and stands by.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrode cap off-site delivery feeder, characterized in that: It includes a vibration plate, an electrode cap sorting mechanism, an electrode cap conveying pipe, a conveying pipe shifting mechanism and an electrode cap positioning and grabbing mechanism. The conveying pipe shifting mechanism and the electrode cap positioning and grabbing mechanism are used to be arranged on the inner side of the welding line fence. The vibration plate and the electrode cap sorting mechanism are used to be arranged on the outer side of the welding line fence. The electrode cap conveying pipe includes an input end, a conveying pipe body and an output end. The electrode cap sorting mechanism is provided with an electrode cap receiving port, an electrode cap releasing port and an air inlet. The discharge port of the vibration plate is connected with the electrode cap receiving port of the electrode cap sorting mechanism. The electrode cap releasing port of the electrode cap sorting mechanism is connected with the input end of the electrode cap conveying pipe. The air inlet of the electrode cap sorting mechanism is connected with an air blowing device. The air blowing device is used to blow the electrode cap from the electrode cap releasing port of the electrode cap sorting mechanism to the output end of the electrode cap conveying pipe via the input end of the electrode cap conveying pipe. The delivery tube shifting mechanism is used to drive the output end of the electrode cap delivery tube to move above the electrode cap positioning and grasping mechanism, so that the output end of the electrode cap delivery tube moves to a position corresponding to the electrode cap positioning and grasping mechanism, or the output end of the electrode cap delivery tube leaves the electrode cap positioning and grasping mechanism. The electrode cap positioning and grabbing mechanism is used to grab and clamp the electrode cap dropped from the output end of the electrode cap conveying tube.

2. The electrode cap off-site delivery feeder according to claim 1, characterized in that: The conveying pipe body is erected above the welding line fence.

3. The electrode cap off-site delivery feeder according to claim 1, characterized in that: A longitudinal conveying channel for conveying electrode caps is provided at the discharge port of the vibration plate, and the discharge port of the longitudinal conveying channel is connected to the electrode cap receiving port of the electrode cap sorting mechanism. The electrode cap sorting mechanism comprises a transverse conveying channel, a slider and a first cylinder. The slider is arranged in the transverse conveying channel. The slider is provided with a receiving groove for accommodating the electrode cap. The electrode cap receiving port, the electrode cap releasing port and the air inlet are connected with the transverse conveying channel. The piston rod of the first cylinder is connected to the slider. When the piston rod of the first cylinder extends and retracts, it drives the slider to move in the transverse conveying channel so that the position of the accommodating groove on the slider corresponds to the electrode cap receiving port or the electrode cap releasing port. When the piston rod of the first cylinder is retracted and the position of the receiving groove corresponds to the position of the electrode cap receiving port, an electrode cap located at the front of the longitudinal conveying channel enters the receiving groove; The piston rod of the first cylinder extends to drive the slider to move along the transverse conveying channel until the positioning groove corresponds to the electrode cap release port, and the blowing device blows the electrode cap in the positioning groove to the input end and output end of the electrode cap conveying pipe through the electrode cap release port.

4. The electrode cap off-site delivery feeder according to claim 3, characterized in that: The electrode cap receiving port is located at the side of the transverse conveying channel, the electrode cap releasing port is located at the top of the transverse conveying channel, and the air inlet is located at the bottom of the transverse conveying channel.

5. The electrode cap off-site delivery feeder according to claim 3, characterized in that: The electrode cap sorting mechanism includes a shell, the interior of the shell has the transverse conveying channel, the side wall of the shell is provided with a screw hole, an adjusting screw is passed through the screw hole, the side wall of the shell is threadedly connected with the adjusting screw, the nut end of the adjusting screw is located on the outside of the shell, the screw rod of the adjusting screw extends into the transverse conveying channel, the screw rod of the adjusting screw can abut against the slider to limit the slider, so that when the slider moves along the transverse conveying channel to the position corresponding to the positioning groove and the electrode cap release port under the drive of the first cylinder, the accommodating groove is aligned with the electrode cap release port.

6. The electrode cap off-site delivery feeder according to claim 1, characterized in that: The delivery tube displacement mechanism includes a second cylinder and a delivery tube mounting seat. The delivery tube mounting seat is provided with a delivery tube mounting hole. The output end of the delivery tube is inserted into the delivery tube mounting hole. The piston rod of the second cylinder is connected to the delivery tube mounting seat. When the piston rod of the second cylinder is extended and retracted, it drives the delivery tube mounting seat to move, thereby driving the output end of the electrode cap delivery tube to move above the electrode cap positioning and grasping mechanism.

7. The electrode cap off-site delivery feeder according to claim 1, characterized in that: The electrode cap positioning and grasping mechanism includes a finger cylinder and two clamping jaws, the two clamping jaws are respectively connected to the two fingers of the finger cylinder, the finger cylinder can drive the two clamping jaws to clamp or loosen, and the two clamping jaws are provided with arc grooves on the inner sides facing each other, and the shape of the arc grooves is adapted to the outer surface of the electrode cap.

8. The electrode cap off-site delivery feeder according to claim 7, characterized in that: The electrode cap positioning and grasping mechanism also includes a finger cylinder mounting seat, the finger cylinder is mounted on the finger cylinder mounting seat, a limiting hole is provided on the finger cylinder mounting seat, the limiting hole is located directly below the arc groove of the two clamping jaws, a pressure column is provided in the limiting hole, the middle part of the pressure column is passed through the limiting hole, there is a gap between the pressure column and the limiting hole, the pressure column can slide up and down in the limiting hole, the upper and lower ends of the pressure column are provided with limiting flanges, the limiting flanges are used to prevent the pressure column from slipping out of the limiting hole.

9. The electrode cap off-site delivery feeder according to claim 1, characterized in that: It also includes an electrode cap flipping mechanism, on which the electrode cap positioning and grabbing mechanism is installed, and the electrode cap flipping mechanism is used to drive the electrode cap positioning and grabbing mechanism to flip 180 degrees in the vertical direction.

10. The electrode cap off-site delivery feeder according to claim 9, characterized in that: The electrode cap flipping mechanism comprises a rotating cylinder.

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