Quick-change electrode structure integrating positioning and clamping functions

Abstract

The application relates to a quick-change electrode structure integrating positioning and clamping functions, which comprises an electrode seat assembly and an electrode, the electrode is installed below the electrode seat assembly, a workpiece positioning and clamping mechanism is also installed below the electrode seat assembly, the workpiece positioning and clamping mechanism comprises a mounting seat, a limiting block, a micro-cylinder mounting plate, a micro-cylinder and a moving clamping block, the limiting block is installed at one end of the mounting seat, the micro-cylinder mounting plate is installed at the other end of the mounting seat, the micro-cylinder is installed at the bottom of the micro-cylinder mounting plate, a position-avoiding groove is arranged in the middle of the electrode, a workpiece is placed into the position-avoiding groove, the micro-cylinder drives the moving clamping block to move, the moving clamping block gradually approaches the limiting block, the moving clamping block and the limiting block are matched to position and clamp the workpiece, and the welding precision is guaranteed; in addition, since the moving clamping block and the limiting block are located outside the electrode, the moving clamping block and the limiting block cannot shield the electrode, when the electrode needs to be repaired or replaced after being used for a period of time, the electrode can be directly and quickly disassembled, the practicability is high, and the electrode is very convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding equipment, in particular to a quick-change electrode structure integrated with positioning and clamping functions. BACKGROUND

[0002] In the prior art, the electrode for welding a workpiece with a middle empty part is usually without positioning and clamping functions, and the workpiece is directly placed on the material to be welded by a worker or a manipulator, and then the welding equipment is started to weld, which has the defects that the position of the workpiece cannot be guaranteed, the welding precision is low, and the electrode has high position precision requirement for the workpiece, and slight deviation may cause damage to the electrode or the workpiece. Figure 1 As shown in the prior art, some people increase positioning and clamping devices at the electrode to clamp the workpiece, but the structure design of the positioning and clamping devices of the existing electrode is unreasonable and blocks the electrode, so that the electrode cannot be quickly disassembled and replaced, and the electrode cannot be ground. SUMMARY

[0003] In view of the above defects in the prior art, the technical problem to be solved by the present application is how to better clamp and position the workpiece for the welding electrode suitable for the workpiece with a middle empty part, how to make the electrode easier to disassemble and assemble, and how to make the electrode grindable, and the specific technical scheme is as follows.

[0004] The quick-change electrode structure integrated with positioning and clamping functions comprises an electrode seat assembly and an electrode, the electrode is installed below the electrode seat assembly, a workpiece positioning and clamping mechanism is further installed below the electrode seat assembly, the workpiece positioning and clamping mechanism comprises a mounting seat, a limiting block, a micro-cylinder mounting plate, a micro-cylinder, and a moving clamping block, the mounting seat is installed with the limiting block at one end and the micro-cylinder mounting plate at the other end, the micro-cylinder mounting plate is installed with the micro-cylinder at the bottom, the piston rod of the micro-cylinder is connected with the moving clamping block, the moving clamping block and the limiting block are located outside the electrode, the electrode is provided with a position-avoiding groove in the middle, and the moving clamping block and the limiting block face the position-avoiding groove.

[0005] As a preferred scheme of the present application, the mounting seat is a C-shaped seat with one end long and the other end short, an installation groove is arranged below the electrode seat assembly, the mounting seat is arranged in the installation groove, the long end of the C-shaped seat is installed with the limiting block, and the short end is installed with the micro-cylinder mounting plate.

[0006] As a preferred scheme of the present application, an insulating plate is installed between the mounting seat and the electrode seat assembly.

[0007] As a preferred scheme of the present application, the workpiece positioning and clamping mechanism further comprises a positioning shaft, the mounting seat is sleeved with the positioning shaft, the electrode is provided with a U-shaped groove, and the U-shaped groove is located above the position-avoiding groove.

[0008] As a preferred scheme of the present application, an oil-free bushing is installed in the mounting seat, the positioning shaft penetrates into the oil-free bushing, and a limiting screw is screwed on the upper end of the positioning shaft,

[0009] As a preferred scheme of the present application, a positioning shaft nylon mounting block is installed above the mounting seat, a protective pad is installed in the positioning shaft nylon mounting block, a spring is installed in the electrode seat assembly, and the lower end of the spring abuts against the protective pad.

[0010] As a preferred scheme of the present application, the electrode is in the shape of "π", the left and right ends of the electrode are installed on the bottom of the electrode seat assembly through screws, the bottom of the electrode is provided with two protrusions, and an avoiding slot is located between the two protrusions.

[0011] As a preferred scheme of the present application, a workpiece detection mechanism is installed on the side of the electrode seat assembly, and the workpiece detection mechanism detects whether a workpiece has been installed on the electrode.

[0012] As a preferred scheme of the present application, the workpiece detection mechanism comprises a fixed seat, a transverse adjusting shaft, a first fixed clamp, a longitudinal adjusting shaft, a second fixed clamp, a vertical adjusting shaft, a sensor mounting seat and a laser sensor, the fixed seat is installed on the side of the electrode seat assembly, the fixed seat embraces and clamps one end of the transverse adjusting shaft, the other end of the transverse adjusting shaft is embraced and clamped by the first fixed clamp, one end of the longitudinal adjusting shaft is embraced and clamped by the first fixed clamp, the other end of the longitudinal adjusting shaft is embraced and clamped by the second fixed clamp, one end of the vertical adjusting shaft is embraced and clamped by the second fixed clamp, the other end of the vertical adjusting shaft is provided with the sensor mounting seat, the laser sensor is installed at the bottom of the sensor mounting seat, and the laser sensor faces the workpiece.

[0013] As a preferred scheme of the present application, the electrode seat assembly comprises an electrode seat, a transverse adjusting plate, a transverse adjusting bolt, a longitudinal adjusting plate, a T-shaped nut and a longitudinal adjusting bolt, the transverse adjusting plate is fixedly installed above the electrode seat, the transverse adjusting plate is provided with a plurality of waist-shaped holes, the transverse adjusting plate is installed below the longitudinal adjusting plate through the waist-shaped holes from below through screws, the longitudinal adjusting plate is provided with the transverse adjusting bolt on the side, the transverse adjusting bolt is threadedly connected with the transverse adjusting plate, the longitudinal adjusting plate is connected with the T-shaped nut through screws, the T-shaped nut is installed in the output end of the welding cylinder of the welding machine, the longitudinal adjusting bolt is threadedly connected with the longitudinal adjusting plate, and the longitudinal adjusting bolt is installed on the side of the output end of the welding cylinder of the welding machine.

[0014] Beneficial effects: when the electrode works, the workpiece is placed into the avoiding slot, the micro-cylinder drives the moving clamping block to move, the moving clamping block gradually approaches the limiting block, the moving clamping block and the limiting block are matched to clamp the workpiece, so that the welding precision is ensured, in addition, since the moving clamping block and the limiting block are located on the outer side of the electrode, the moving clamping block and the limiting block will not block the electrode, when the electrode needs to be ground or replaced after being used for a period of time, the electrode can be directly and quickly disassembled, the practicability is strong, and the electrode is very convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of a workpiece of the present application;

[0016] Figure 2 is a perspective view of a quick-change electrode structure of the present application;

[0017] Figure 3 is an exploded view of a quick-change electrode structure of the present application;

[0018] Figure 4 is a sectional view of a workpiece positioning and clamping mechanism of the present application;

[0019] Figure 5 is a perspective view of a workpiece positioning and clamping mechanism of the present application;

[0020] Figure 6 is a perspective view of an electrode of the present application;

[0021] Figure 7 is a perspective view of a workpiece detection mechanism of the present application;

[0022] Figure 8 is a perspective view of an electrode holder assembly of the present application;

[0023] Figure 9 is an exploded view of an electrode holder assembly of the present application. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application will be further described below with reference to the accompanying drawings:

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] As Figures 1-4As shown, a quick-change electrode structure integrating positioning and clamping functions includes an electrode seat assembly 1 and an electrode 2, the electrode seat assembly 1 is provided below the electrode 2, and a workpiece positioning and clamping mechanism 3 is also provided below the electrode seat assembly 1, the workpiece positioning and clamping mechanism 3 includes a mounting seat 31, a limiting block 32, a micro-cylinder mounting plate 33, a micro-cylinder 34, and a moving clamping block 35, the mounting seat 31 is provided with the limiting block 32 at one end and the micro-cylinder mounting plate 33 at the other end, the micro-cylinder mounting plate 33 is provided with the micro-cylinder 34 at the bottom, the micro-cylinder 34 is a micro-guide rod cylinder, the piston rod of the micro-cylinder 34 is connected to the moving clamping block 35, the moving clamping block 35 and the limiting block 32 are located outside the electrode 2, the electrode 2 is provided with an avoiding groove 21 in the middle, the moving clamping block 35 and the limiting block 32 are opposite to the avoiding groove 21, the workpiece 4 has a structure with a protruding middle part and flat ends, the avoiding groove 21 is used for the middle part of the workpiece 4 to enter, the moving clamping block 35 and the limiting block 32 clamp the middle part of the workpiece 4, and the two ends of the workpiece are in contact with the electrode 2.

[0028] As shown in Figure 4 and 5 , the mounting seat 31 is a C-shaped seat with one end longer and the other end shorter, the electrode seat assembly 1 is provided below with a mounting groove 1a, the mounting groove 1a is located above the electrode 2, the mounting seat 31 is placed in the mounting groove 1a, the longer end of the C-shaped seat is provided with the limiting block 32 and the shorter end is provided with the micro-cylinder mounting plate 33, which is beneficial to the disassembly of the electrode 2 without affecting the workpiece positioning and clamping mechanism 3, in addition, an insulating plate 36 is mounted between the mounting seat 31 and the electrode seat assembly 1, the insulating plate 36 insulates the workpiece positioning and clamping mechanism 3 from the electrode seat assembly 1, preventing the welding current from being shunted to affect the welding effect.

[0029] As shown in Figures 4-6 , the workpiece positioning and clamping mechanism 3 further includes a positioning shaft 37, the mounting seat 31 is sleeved with the positioning shaft 37, the electrode 2 is provided with a U-shaped groove 22, the U-shaped groove 22 is located above the avoiding groove 21, the middle part of the workpiece 4 is provided with a workpiece positioning groove 41, when the workpiece 4 enters the avoiding groove 21 of the electrode 2, the positioning shaft 37 penetrates into the workpiece positioning groove 41 of the workpiece 4, and the positioning shaft 37 cooperates with the moving clamping block 35 and the limiting block 32 to realize all-around positioning and clamping of the workpiece 4.

[0030] Specifically, an oil-free bushing 38 is mounted in the mounting seat 31, the positioning shaft 37 penetrates into the oil-free bushing 38, a limiting screw 39 is screwed on the upper end of the positioning shaft 37, a positioning shaft nylon mounting block 310 is mounted above the mounting seat 31, a protective gasket 311 is mounted in the positioning shaft nylon mounting block 310, a spring 312 is mounted in the electrode seat assembly 1, the lower end of the spring 312 abuts against the protective gasket 311, the positioning shaft 37 can move up and down along the oil-free bushing 38, and the positioning shaft 37 is soft-positioned when inserted into the workpiece to prevent the workpiece and the feeding mechanism from being damaged.

[0031] Specifically, the electrode 2 is "π" shape, the electrode 2 left and right ends are installed to the electrode seat assembly 1 bottom through screw, the electrode 2 bottom left and right ends are provided with protrusions 23, the avoidance slot 21 is located between the two protrusions 23, and the two protrusions 23 contact the workpiece 4 two ends to realize welding during work.

[0032] As shown in Figure 2 and 7 , the electrode seat assembly 1 side installs the workpiece detection mechanism 5, the workpiece detection mechanism 5 detects whether the electrode 2 has been loaded with the workpiece 4, and the power supply is ensured when the workpiece exists. Specifically, the workpiece detection mechanism 5 includes a fixed seat 51, a transverse adjustment shaft 52, a first fixed clamp 53, a longitudinal adjustment shaft 54, a second fixed clamp 55, a vertical adjustment shaft 56, a sensor mounting seat 57 and a laser sensor 58, the electrode seat assembly side 1 installs the fixed seat 51, the fixed seat 51 embraces and clamps one end of the transverse adjustment shaft 52, the other end of the transverse adjustment shaft 52 is embraced and clamped by the first fixed clamp 53, one end of the longitudinal adjustment shaft 54 is embraced and clamped by the first fixed clamp 53, the other end of the longitudinal adjustment shaft 54 is embraced and clamped by the second fixed clamp 55, one end of the vertical adjustment shaft 56 is embraced and clamped by the second fixed clamp 55, the other end of the vertical adjustment shaft 56 installs the sensor mounting seat 57, the sensor mounting seat 57 bottom installs the laser sensor 58, the laser sensor 58 faces the electrode, and the laser sensor 58 position adjustment can be realized through the transverse X-axis movement of the transverse adjustment shaft 52, the longitudinal Y-axis movement of the longitudinal adjustment shaft 54 and the vertical Z-axis movement of the vertical adjustment shaft 56, so that the laser sensor 58 accurately identifies the presence or absence of the workpiece.

[0033] As shown in Figure 8 and 9 , the electrode seat assembly 1 includes an electrode seat 11, a transverse adjustment plate 12, a transverse adjusting bolt 13, a longitudinal adjustment plate 14, a T-shaped nut 15 and a longitudinal adjusting bolt 16, the installation groove 1a is arranged on the electrode seat 11, the transverse adjustment plate 12 is fixedly installed above the electrode seat 11, the transverse adjustment plate 12 is provided with a plurality of waist type holes 12a, the transverse adjustment plate 12 is installed below the longitudinal adjustment plate 14 through the waist type hole 12a from below by screw, the longitudinal adjustment plate 14 side installs the transverse adjusting bolt 13, the transverse adjusting bolt 13 is threadedly connected with the transverse adjustment plate 12, the longitudinal adjustment plate 14 is connected with the T-shaped nut 15 through screw, the T-shaped nut 15 is installed in the output end of the welding cylinder of the welding machine, the longitudinal adjusting bolt 16 is threadedly connected with the longitudinal adjustment plate 14, and the longitudinal adjusting bolt 16 is installed on the side of the output end of the welding cylinder of the welding machine. The position of the electrode seat 11 is changed through rotating the transverse adjusting bolt 13 and the longitudinal adjusting bolt 16 respectively, so as to adjust the electrode position.

[0034] The above is further detailed description of the present application in combination with specific preferred embodiments, and cannot be deemed as limitation of the specific implementation of the present application to these descriptions. For ordinary skilled in the art to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, and all of them shall be deemed as falling within the protection scope of the present application.

Claims

1. A quick-change electrode structure with integrated positioning and clamping function, comprising an electrode base assembly and an electrode, wherein the electrode is mounted below the electrode base assembly, characterized in that: A workpiece positioning and clamping mechanism is also installed below the electrode holder assembly. This mechanism includes a mounting base, a limiting block, a micro-cylinder mounting plate, a micro-cylinder, a movable clamping block, and a positioning shaft. The limiting block is mounted on one end of the mounting base, and the micro-cylinder mounting plate is mounted on the other end. A micro-cylinder is mounted on the bottom of the micro-cylinder mounting plate. The piston rod of the micro-cylinder is connected to the movable clamping block. The movable clamping block and the limiting block are located outside the electrode. A clearance groove is provided in the middle of the electrode, and the movable clamping block and the limiting block face the clearance groove. The mounting base is a C-shaped base with one end longer than the other. A mounting groove is provided below the electrode base assembly, and the mounting base is placed within the mounting groove. A limiting block is installed at the longer end of the C-shaped base, and a miniature cylinder mounting plate is installed at the shorter end. An insulating plate is installed between the mounting base and the electrode base assembly. A positioning shaft is fitted inside the mounting base. The electrode has a U-shaped groove, which is located above the clearance groove. The workpiece has a structure with a raised center and flat ends. The clearance groove is used to allow the center of the workpiece to enter. The moving clamping block and the limiting block clamp the center of the workpiece. The two ends of the workpiece are in contact with the electrode. The electrode is "π" shaped. The left and right ends of the electrode are installed to the bottom of the electrode seat assembly by screws. The bottom of the electrode has protrusions at the left and right ends, and the clearance groove is located between the two protrusions.

2. The quick-change electrode structure with integrated positioning and clamping function according to claim 1, characterized in that: An oil-free bushing is installed in the mounting base, and a positioning shaft is inserted into the oil-free bushing. A limit screw is screwed to the upper end of the positioning shaft.

3. A quick-change electrode structure with integrated positioning and clamping function according to claim 1 or 2, characterized in that: A positioning shaft nylon mounting block is installed above the mounting base, a protective gasket is installed inside the positioning shaft nylon mounting block, and a spring is installed inside the electrode seat assembly, with the lower end of the spring pressing against the protective gasket.

4. The quick-change electrode structure with integrated positioning and clamping function according to claim 1, characterized in that: The electrode holder assembly is equipped with a workpiece detection mechanism on its side, which detects whether a workpiece has been installed at the electrode.

5. The quick-change electrode structure with integrated positioning and clamping function according to claim 4, characterized in that: The workpiece inspection mechanism includes a fixed base, a transverse adjustment shaft, a first fixed clamp, a longitudinal adjustment shaft, a second fixed clamp, a vertical adjustment shaft, a sensor mounting base, and a laser sensor. The fixed base is mounted on the side of the electrode assembly. The fixed base encircles and clamps one end of the transverse adjustment shaft, and the other end of the transverse adjustment shaft is encircled and clamped by the first fixed clamp. One end of the longitudinal adjustment shaft is encircled and clamped by the first fixed clamp, and the other end of the longitudinal adjustment shaft is encircled and clamped by the second fixed clamp. One end of the vertical adjustment shaft is encircled and clamped by the second fixed clamp. The sensor mounting base is mounted on the other end of the vertical adjustment shaft, and the laser sensor is mounted on the bottom of the sensor mounting base, with the laser sensor facing the workpiece.

6. The quick-change electrode structure with integrated positioning and clamping function according to claim 1, characterized in that: The electrode holder assembly includes an electrode holder, a lateral adjustment plate, a lateral adjustment bolt, a longitudinal adjustment plate, a T-nut, and a longitudinal adjustment bolt. The lateral adjustment plate is fixedly installed on top of the electrode holder. The lateral adjustment plate has multiple oblong holes. The lateral adjustment plate is installed below the longitudinal adjustment plate by screws passing through the oblong holes from below. The lateral adjustment bolt is installed on the side of the longitudinal adjustment plate and is threadedly connected to the lateral adjustment plate. The longitudinal adjustment plate is connected to the T-nut by screws. The T-nut is installed inside the output end of the welding cylinder of the welding machine. The longitudinal adjustment bolt is threadedly connected to the longitudinal adjustment plate and is installed on the side of the output end of the welding cylinder of the welding machine.

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