A welding gun electrode cap replacement device

Abstract

The present invention relates to a welding gun electrode cap replacement device, comprising a bracket, an electrode cap loading and unloading mechanism and an electrode cap feeding mechanism, wherein the electrode cap loading and unloading mechanism and the electrode cap feeding mechanism are respectively mounted on the bracket, the electrode cap loading and unloading mechanism comprises a driving motor, a crankshaft, a piston cylinder and an electrode cap loading and unloading rod, and the electrode cap feeding mechanism comprises an electrode cap automatic feeding clamp, a rotating disk and a rotating cylinder. The present invention can remove and install the welding gun electrode cap, speed up the replacement beat of the electrode cap, improve the replacement efficiency of the electrode cap, and help reduce costs.

Description

Technical Field

[0001] The invention belongs to the technical field of welding gun electrode cap replacement, and in particular relates to a welding gun electrode cap replacement device. Background Art

[0002] The electrode cap of the welding gun needs to be replaced during use, which mainly includes the removal of the old electrode cap and the installation of the new electrode cap. In the prior art, when replacing the electrode cap of the welding gun, it is necessary to use a removal device to remove the electrode cap, and then use the installation device to install the electrode cap. The welding gun needs to be moved between different devices, which not only has high equipment costs, but also reduces the cycle of replacing the electrode cap, is inefficient and time-consuming. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a welding gun electrode cap replacement device, which can remove and install the welding gun electrode cap, speed up the electrode cap replacement cycle, improve the electrode cap replacement efficiency, and help reduce costs.

[0004] The technical solution adopted by the present invention to solve its technical problems is to provide a welding gun electrode cap replacement device, including a bracket, an electrode cap loading and unloading mechanism and an electrode cap feeding mechanism, the electrode cap loading and unloading mechanism and the electrode cap feeding mechanism are respectively installed on the bracket, the electrode cap loading and unloading mechanism includes a driving motor, a crankshaft, a piston cylinder and an electrode cap loading and unloading rod, the inner part of the outer shell of the piston cylinder is provided with an impact rod, an impact block, a piston and a connecting rod in sequence from top to bottom, the impact rod is sleeved with a buffer spring, the crankshaft is connected to the driving motor and driven to rotate by the driving motor, the connecting rod is axially connected to the crankshaft and driven to rise and fall by the crankshaft, the piston is installed at the top end of the connecting rod, the impact block is slidably arranged above the piston and can lift the impact rod, the electrode cap loading and unloading rod can be rotatably installed on the bracket around a fixed axis joint, the impact rod is axially connected to the electrode cap loading and unloading rod and can drive the electrode cap loading and unloading rod to rotate around a fixed axis joint through the lifting of the impact rod, and the electrode cap loading and unloading rod is relative to the electrode cap The cam is provided with an electrode cap impact block at one end and an electrode cap removal fork at the other end, the electrode cap feeding mechanism comprises an electrode cap automatic feeding clamp, a rotating disk and a rotating cylinder, the rotating disk is driven to rotate by the rotating cylinder, and slots for mounting the electrode caps are symmetrically provided on two sides of the rotating disk, the slots are opened along the rotation direction of the rotating disk, a retaining spring is provided on the rotating disk, the retaining spring extends into the slot and can limit and clamp the electrode caps and can be compressed, the rotating disk is arranged flush with the electrode cap automatic feeding clamp and is located between the electrode cap automatic feeding clamp and the electrode cap loading and unloading rod, the notch of the rotating disk can be inserted into the feeding end of the electrode cap automatic feeding clamp during the rotation process of the rotating disk, and the feeding end of the electrode cap automatic feeding clamp is provided with a spring sheet that can press the electrode cap into the inside of the notch on the downstream side along the rotation direction of the rotating disk, the electrode cap loading and unloading rod is located below the rotating disk and can be inserted into the notch when the electrode cap impact block is lifted to impact the electrode cap clamped in the notch.

[0005] A connecting shaft is provided at the center position of one side of the crankshaft relative to the driving motor, and the connecting shaft is connected to the rotating shaft of the driving motor through a coupling.

[0006] A connecting shaft is provided at the edge of the crankshaft on the other side relative to the driving motor, and the lower end of the connecting rod is axially connected to the connecting shaft.

[0007] A support block is installed on the bracket, and the electrode cap loading and unloading rod is connected to the support block through a shaft connection structure.

[0008] The outer end of the electrode cap loading and unloading rod relative to the bracket is provided with an electrode cap unloading fork, the electrode cap unloading fork extends from the side of the bracket, and a waste electrode cap recovery box is installed on the bracket below the corresponding electrode cap unloading fork.

[0009] The clamping spring is arranged on the inner side of the notch, and a mounting groove for the clamping spring is arranged on the rotating disk. When the clamping spring is compressed, it contracts into the mounting groove.

[0010] The spring sheets are arranged in a matrix of four sheets. When the electrode cap is put on the notch of the rotating disk, the electrode cap is squeezed into the notch by the spring sheets, and the rotating disk passes between the upper and lower spring sheets.

[0011] The driving motor is fixedly mounted on the bracket via a motor mounting bracket, and the piston cylinder is vertically mounted on the bracket via a housing.

[0012] The electrode cap feeding mechanism also includes a base, which is mounted on the bracket, the electrode cap automatic feeding clamp is horizontally mounted on the base, and the rotating cylinder is located at the bottom of the rotating disk and mounted on the base. Beneficial Effects

[0013] First, in the present invention, the electrode cap removal structure and the electrode cap installation structure are integrated into an electrode cap loading and unloading rod, which can realize the alternating lifting and lowering of the two ends of the electrode cap loading and unloading rod by driving the driving mechanism and the transmission mechanism. The electrode cap of the welding tongs can be removed by pressing down the electrode cap removal fork, and the electrode cap of the welding tongs can be installed by pushing up the electrode cap impact block. At the same time, it has the function of removing and installing the electrode cap of the welding gun, which is beneficial to reducing equipment cost, has a compact structure, speeds up the replacement rhythm of the electrode cap, and is beneficial to improving the replacement efficiency of the electrode cap.

[0014] Second, in the present invention, the rotating disk is driven to rotate so that the electrode cap conveyed on the automatic electrode cap feeding clamp can be taken and clamped, and then the electrode cap is transferred to the installation station. The operation is stable and reliable. The double-slot stations of the rotating disk are alternately switched to take and feed materials, which improves the feeding rhythm of the electrode cap and is beneficial to improving the efficiency of replacing the electrode cap of the welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the front structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the electrode cap loading and unloading mechanism.

[0018] Figure 4 This is a schematic diagram of the front structure of the electrode cap loading and unloading mechanism.

[0019] Figure 5 Schematic diagram of the internal structure of the piston cylinder.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the electrode cap feeding mechanism.

[0021] Figure 7This is a schematic diagram of the front structure of the electrode cap feeding mechanism.

[0022] Figure 8 It is a schematic diagram of the top view of the electrode cap feeding mechanism. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0024] like Figure 1 and Figure 2 The welding gun electrode cap replacement device shown comprises a bracket 1, an electrode cap loading and unloading mechanism and an electrode cap feeding mechanism, wherein the electrode cap loading and unloading mechanism and the electrode cap feeding mechanism are respectively mounted on the bracket 1.

[0025] The structure of the electrode cap loading and unloading mechanism is as follows Figure 3-5 As shown, it includes a driving motor 2, a crankshaft 3, a piston cylinder 5 and an electrode cap loading and unloading rod 6.

[0026] The driving motor 2 is fixedly mounted on the bracket 1 horizontally through the motor mounting bracket. The piston cylinder 5 is vertically mounted on the bracket 1, such as Figure 5 As shown, the shell of the piston cylinder 5 is provided with an impact rod 5-1, an impact block 5-2, a piston 5-3 and a connecting rod 5-4 from top to bottom, and a buffer spring 5-5 is sleeved on the impact rod 5-1. A connecting shaft is provided at the center position of one side of the crankshaft 3 relative to the driving motor 2, and the connecting shaft is connected to the rotating shaft of the driving motor 2 through a coupling 7, and the crankshaft 3 is driven to rotate by the driving motor 2. A connecting shaft is provided at the edge position of the other side of the crankshaft 3 relative to the driving motor 2, and the lower end of the connecting rod 5-4 is axially connected to the connecting shaft, and the connecting rod 5-4 can be driven to rise and fall by the rotation of the crankshaft 3. The piston 5-3 is installed at the top of the connecting rod 5-4, and the impact block 5-2 is arranged above the piston 5-3 in a manner that it can be raised and lowered and slidably disposed and can lift the impact rod 5-1. The buffer spring 5-5 plays a buffering role in the process of the impact rod 5-1 being lifted.

[0027] A support block 4 is installed at the top edge of the bracket 1, and the middle part of the electrode cap loading and unloading rod 6 is connected to the support block 4 through an axis connection structure to form a fixed axis connection point. The impact rod 5-1 is axis-connected to the electrode cap loading and unloading rod 6, and the electrode cap loading and unloading rod 6 can be driven to rotate around the fixed axis connection point by lifting and lowering the impact rod 5-1, that is, rotating along the axis connection point with the support block 4.

[0028] The inner end of the electrode cap loading and unloading rod 6 relative to the bracket 1 is provided with an electrode cap impact block 6-1, and the other end is provided with an electrode cap removal fork 6-2, which extends from the side of the bracket 1. A waste electrode cap recovery box 15 is installed on the bracket 1 below the corresponding electrode cap removal fork 6-2 to receive the removed waste electrode caps. When removing the old electrode cap of the welding gun, the piston cylinder 5 is lifted up, and the electrode cap removal fork 6-2 of the electrode cap loading and unloading rod 6 is driven to be pressed down to remove the electrode cap on the welding gun; when installing a new electrode cap, the piston cylinder 5 is lifted up, and the electrode cap impact block 6-1 of the electrode cap loading and unloading rod 6 is driven to lift and impact the electrode cap to knock it onto the welding gun.

[0029] The structure of the electrode cap feeding mechanism is as follows Figure 6-8 As shown, it includes an electrode cap automatic feeding clamp 8, a rotating disk 9, a rotating cylinder 10 and a base 14.

[0030] The base 14 is mounted on the bracket 1, and the electrode cap automatic feeding clamp 8 is horizontally mounted on the base 14. The specific structure of the electrode cap automatic feeding clamp 8 is a prior art and will not be described in detail here. The rotating disk 9 is arranged flush with the electrode cap automatic feeding clamp 8 and is located between the electrode cap automatic feeding clamp 8 and the electrode cap loading and unloading rod 6. The rotating cylinder 10 is located at the bottom of the rotating disk 9 and is mounted on the base 14. The rotating disk 9 is driven to rotate by the rotating cylinder 10.

[0031] The rotating disk 9 is symmetrically provided with slots on both sides for mounting the electrode caps 11, and the slots are opened along the rotation direction of the rotating disk 9. The rotating disk 9 is provided with a clamping spring 12, which extends into the slot to limit and clamp the electrode cap 11, and the clamping spring 12 is arranged on the inner side of the slot, and the rotating disk 9 is provided with a mounting groove for the clamping spring 12, and the clamping spring 12 can shrink into the mounting groove when it is compressed.

[0032] During the rotation of the rotating disk 9, the notch can be inserted into the feeding end of the electrode cap automatic feeding clamp 8, which refers to the workstation end of the electrode cap automatic feeding clamp 8 where the electrode cap 11 closest to the rotating disk 9 is located. The feeding end of the electrode cap automatic feeding clamp 8 is provided with a spring sheet 13 that can press the electrode cap 11 into the notch on the downstream side along the rotation direction of the rotating disk 9. The spring sheet 13 is arranged in a matrix of four sheets. During the process of taking the electrode cap 11 from the notch of the rotating disk 9, the electrode cap 11 is squeezed into the notch by the spring sheet 13, and the rotating disk 9 passes between the upper and lower spring sheets 13 to maintain smooth rotation. The electrode cap loading and unloading rod 6 is located below the rotating disk 9 and can be inserted into the notch when the electrode cap impact block 6-1 is lifted to impact the electrode cap 11 clamped in the notch, so that the electrode cap 11 is knocked and installed on the welding gun.

[0033] When the welding gun electrode cap replacement device is working: the welding gun first carries the used electrode cap that needs to be replaced into the electrode cap disassembly station, and the electrode cap loading and unloading mechanism drives the electrode cap unloading fork 6-2 of the electrode cap loading and unloading rod 6 to press down to unload the used electrode cap, and the used electrode cap falls into the waste electrode cap recovery box 15 for recovery; the welding gun then moves to the electrode cap installation station, the rotating disk 9 sleeves the electrode cap 11 to be installed from the electrode cap automatic feeding clamp 8 and transports it to the loading station, and the electrode cap loading and unloading mechanism drives the electrode cap impact block 6-1 of the electrode cap loading and unloading rod 6 to knock the electrode cap 11 to install it on the welding gun.

Claims

1. A welding gun electrode cap replacement device, comprising a bracket (1), an electrode cap loading and unloading mechanism and an electrode cap feeding mechanism, wherein the electrode cap loading and unloading mechanism and the electrode cap feeding mechanism are respectively mounted on the bracket (1), characterized in that: The electrode cap loading and unloading mechanism comprises a driving motor (2), a crankshaft (3), a piston cylinder (5) and an electrode cap loading and unloading rod (6); an impact rod (5-1), an impact block (5-2), a piston (5-3) and a connecting rod (5-4) are arranged in sequence from top to bottom inside the outer shell of the piston cylinder (5); a buffer spring (5-5) is sleeved on the impact rod (5-1); the crankshaft (3) is connected to the driving motor (2) and is driven to rotate by the driving motor (2); the connecting rod (5-4) is axially connected to the crankshaft (3) and is driven to rise and fall by the crankshaft (3); the piston (5-3) The impact block (5-2) is installed at the top of the connecting rod (5-4), and can be raised and lowered and slidably arranged above the piston (5-3) and can lift the impact rod (5-1). The electrode cap loading and unloading rod (6) can be rotatably installed on the bracket (1) around a fixed axis joint. The impact rod (5-1) is axially connected to the electrode cap loading and unloading rod (6) and can drive the electrode cap loading and unloading rod (6) to rotate around the fixed axis joint through the lifting and lowering of the impact rod (5-1). The electrode cap loading and unloading rod (6) is provided with an electrode cap impact block (6-1) at one end relative to the electrode cap feeding mechanism and an electrode cap removal fork at the other end. (6-2), the electrode cap feeding mechanism comprises an electrode cap automatic feeding clamp (8), a rotating disk (9) and a rotating cylinder (10), the rotating disk (9) is driven to rotate by the rotating cylinder (10), the rotating disk (9) is symmetrically provided with slots capable of housing the electrode cap (11), the slots are opened along the rotation direction of the rotating disk (9), the rotating disk (9) is provided with a retaining spring (12), the retaining spring (12) extends into the slot to limit and clamp the electrode cap (11) and can be compressed, the rotating disk (9) is arranged with the electrode cap automatic feeding clamp (8) ) is flush with and located between the electrode cap automatic feeding clamp (8) and the electrode cap loading and unloading rod (6); the notch of the rotating disk (9) can be inserted into the feeding end of the electrode cap automatic feeding clamp (8) during the rotation process; the feeding end of the electrode cap automatic feeding clamp (8) is provided with a spring sheet (13) on the downstream side along the rotation direction of the rotating disk (9) that can press the electrode cap (11) into the inside of the notch; the electrode cap loading and unloading rod (6) is located below the rotating disk (9) and the electrode cap impact block (6-1) can be inserted into the notch when it is lifted to impact the electrode cap (11) clamped in the notch; The driving motor (2) is fixedly mounted on the bracket (1) via a motor mounting bracket, and the piston cylinder (5) is vertically mounted on the bracket (1) via a housing; The electrode cap feeding mechanism also includes a base (14), the base (14) is mounted on the bracket (1), the electrode cap automatic feeding clamp (8) is horizontally mounted on the base (14), and the rotary cylinder (10) is located at the bottom of the rotary disk (9) and mounted on the base (14).

2. A welding gun electrode cap replacement device according to claim 1, characterized in that: A connecting shaft is provided at the center position of one side of the crankshaft (3) relative to the drive motor (2), and the connecting shaft is connected to the rotating shaft of the drive motor (2) via a coupling (7).

3. The welding gun electrode cap replacement device according to claim 1, characterized in that: A connecting shaft is provided at the edge of the other side of the crankshaft (3) relative to the driving motor (2), and the lower end of the connecting rod (5-4) is axially connected to the connecting shaft.

4. The welding gun electrode cap replacement device according to claim 1, characterized in that: A support block (4) is mounted on the bracket (1), and the electrode cap loading and unloading rod (6) is connected to the support block (4) via a shaft connection structure.

5. The welding gun electrode cap replacement device according to claim 1, characterized in that: The outer end of the electrode cap loading and unloading rod (6) relative to the bracket (1) is provided with an electrode cap unloading fork (6-2), the electrode cap unloading fork (6-2) extends from the side of the bracket (1), and a waste electrode cap recovery box (15) is installed on the bracket (1) below the corresponding electrode cap unloading fork (6-2).

6. The welding gun electrode cap replacement device according to claim 1, characterized in that: The retaining spring (12) is arranged on the inner side of the notch, and a mounting groove for the retaining spring (12) is provided on the rotating disk (9). When the retaining spring (12) is compressed, it contracts into the mounting groove.

7. The welding gun electrode cap replacement device according to claim 1, characterized in that: The spring sheets (13) are arranged in a matrix of four sheets. When the electrode cap (11) is inserted into the notch of the rotating disk (9), the electrode cap (11) is squeezed into the notch by the spring sheets (13). The rotating disk (9) passes between the upper and lower spring sheets (13).

Images