Welding gun electrode cap storage device

Abstract

The present invention provides a welding gun electrode cap storage device, comprising a base, a storage channel is provided on the base, a trimming station is provided at one end of the storage channel, and the trimming station is connected to a loading station; a first pushing mechanism and a second pushing mechanism are provided on the base, the first pushing mechanism is used to send the electrode cap in the storage channel to the trimming station, and the second pushing mechanism is used to send the electrode cap in the trimming station to the loading station; a cleaning mechanism is provided at the trimming station aligned with the open end of the electrode cap; a heating mechanism is provided at the trimming station aligned with the closed end of the electrode cap. The present invention can thoroughly clean the inner side wall of the electrode cap before the electrode cap is installed on the electrode rod.

Description

Technical Field

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

[0002] In the manufacturing industry, spot welding is a common method for connecting parts. As a key consumable part of spot welding, the electrode cap often has welding slag adhesion, oxide layer formation, and excessive wear after long-term use, which increases the resistance of the electrode cap and affects the welding quality. Therefore, the electrode cap with severe wear must be replaced in time.

[0003] The electrode caps to be used are usually placed in the spot welding workshop so that they can be used in time. However, the existing electrode caps are often stained with oil or lubricating oil after they are made. Although they are cleaned uniformly before leaving the factory, the inner walls of some electrode caps are still prone to incomplete cleaning, resulting in residual oil stains on the inner walls of the electrode caps. In addition, the smoke generated by the spot welding process can easily cause dust to adhere to the inner walls of the electrode caps stored in the spot welding workshop. If these oil stains and dust are not cleaned up, after the electrode cap is installed on the electrode rod, it will seriously affect the conductivity between the electrode cap and the electrode rod, thereby reducing the quality of welding. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a welding gun electrode cap storage device, which can thoroughly clean the inner side wall of the electrode cap before the electrode cap is installed on the electrode rod.

[0005] The present invention adopts the following technical solutions.

[0006] A welding gun electrode cap storage device comprises a base, a storage channel is provided on the base, a trimming station is provided at one end of the storage channel, and the trimming station is connected to a loading station;

[0007] The base is provided with a first pushing mechanism and a second pushing mechanism, wherein the first pushing mechanism is used to send the electrode cap in the storage channel to the trimming station, and the second pushing mechanism is used to send the electrode cap in the trimming station to the loading station;

[0008] The trimming station is provided with a cleaning mechanism at a position aligned with the open end of the electrode cap;

[0009] The trimming station is provided with a heating mechanism at a position aligned with the closed end of the electrode cap.

[0010] Furthermore, the cleaning mechanism comprises a cleaning head and a scraper ring sleeved on the outside of the cleaning head, and the outer wall of the scraper ring is interference-fitted with the inner wall of the electrode cap;

[0011] The cleaning head is connected to a first power member, and the first power member can drive the cleaning head to extend into the electrode cap or withdraw from the electrode cap;

[0012] The cleaning head is provided with a liquid spraying hole and a liquid suction hole. The liquid spraying hole is used to inject the cleaning liquid into the electrode cap, and the liquid suction hole is used to drain the cleaning liquid in the electrode cap.

[0013] Furthermore, the liquid spray hole is arranged on the side of the cleaning head, and the inner side wall of the scraper ring is formed with a tapered wall covering the liquid spray hole.

[0014] Furthermore, the cleaning mechanism further comprises a cylinder body, and a piston head slidably disposed in the cylinder body, the piston head divides the cylinder body into a first liquid chamber and a second liquid chamber, and the piston head is connected to the cleaning head as a whole through a piston rod;

[0015] The piston rod is provided with a liquid spraying channel connecting the first liquid chamber and the liquid spraying hole, and a liquid suction channel connecting the second liquid chamber and the liquid suction hole;

[0016] When the cleaning head moves toward the closed end of the electrode cap, the volume of the first liquid chamber decreases and the volume of the second liquid chamber increases;

[0017] The liquid spraying channel is provided with a first one-way valve, and the first one-way valve is used to limit the cleaning liquid in the electrode cap from flowing into the first liquid chamber through the liquid spraying channel;

[0018] The liquid suction channel is provided with a second one-way valve, and the second one-way valve is used to limit the cleaning liquid in the second liquid chamber from flowing into the electrode cap through the liquid suction channel.

[0019] Furthermore, the first liquid chamber is connected to a liquid storage chamber through a first check valve, and the second liquid chamber is connected to a waste liquid chamber through a second check valve;

[0020] The first check valve is used to limit the cleaning liquid in the first liquid chamber from flowing into the liquid storage chamber, and the second check valve is used to limit the cleaning liquid in the waste liquid chamber from flowing into the second liquid chamber.

[0021] Furthermore, the first pushing mechanism includes a pushing block slidably connected to the storage channel, and a first elastic member connected to the pushing block, and the first elastic member causes the pushing block to tend to approach the trimming station.

[0022] Furthermore, the second pushing mechanism includes a second power member and a pushing head transmission-connected to the second power member.

[0023] Furthermore, the heating mechanism includes an electric heating block slidably connected to the base, and a second elastic member connected to the electric heating block, wherein the second elastic member causes the electric heating block to tend to approach the trimming station.

[0024] Furthermore, a limiting column is provided between the trimming station and the loading station, and the limiting column is connected to a third elastic member, and the third elastic member enables the limiting column to have a tendency to be embedded between the trimming station and the loading station.

[0025] The beneficial effects of the present invention are:

[0026] The present invention is provided with a storage channel, and the electrode caps to be used are arranged in sequence in the storage channel. A dressing station is provided at one end of the storage channel, and a cleaning mechanism and a heating mechanism are provided at the dressing station. The electrode caps to be used will enter the dressing station before being installed on the electrode rod. In this station, the cleaning mechanism will thoroughly clean the inner wall of the electrode cap to clean up the oil and dust on the inner wall of the electrode cap. Then, the heating mechanism will heat the cleaned electrode cap, which can not only keep the electrode cap dry and prevent the cleaning liquid from remaining on the inner wall of the electrode cap, but also based on the principle of thermal expansion and contraction, the inner diameter of the heated electrode cap will become larger, which is conducive to the subsequent installation of the electrode cap on the electrode rod, avoiding excessive friction between the electrode cap and the electrode rod during the installation process, thereby reducing the wear of the electrode rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 is a schematic diagram of a front cross-sectional structure of this embodiment;

[0029] Figure 2 for Figure 1 AA section structural diagram;

[0030] Figure 3 for Figure 1 A magnified view of part B;

[0031] Figure 4 Schematic diagram of the structure of the cleaning head of this embodiment;

[0032] Figure 5 Schematic diagram of the top view of the structure of this embodiment.

[0033] Description of reference numerals:

[0034] Base 1,

[0035] Storage channel 11,

[0036] Trimming station 101, loading station 102,

[0037] The first pushing mechanism 2,

[0038] Push block 21, first elastic member 22,

[0039] The second pushing mechanism 3,

[0040] The second power member 31, the push head 32,

[0041] Cleaning mechanism 4, cleaning head 41, scraper ring 42, first power member 43, cylinder body 44, piston head 45, piston rod 46,

[0042] Liquid spray hole 411, liquid suction hole 412,

[0043] Conical wall 421,

[0044] The first liquid chamber 441, the second liquid chamber 442,

[0045] Liquid spraying channel 461, liquid suction channel 462,

[0046] The first one-way valve 471, the second one-way valve 472,

[0047] The first check valve 481, the second check valve 482,

[0048] Heating mechanism 5,

[0049] The electric heating block 51, the second elastic member 52,

[0050] Limiting column 61, third elastic member 62,

[0051] Electrode cap 7. DETAILED DESCRIPTION

[0052] The drawings are only used for illustrative purposes and should not be construed as limitations of this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product.

[0053] For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The technical solution of the present invention is further described below in conjunction with the drawings and embodiments.

[0054] As shown in the accompanying drawings, a welding gun electrode cap storage device comprises a base 1, a storage channel 11 is provided on the base 1, a trimming station 101 is provided at one end of the storage channel 11, and the trimming station 101 is connected to a loading station 102;

[0055] The base 1 is provided with a first pushing mechanism 2 and a second pushing mechanism 3. The first pushing mechanism 2 is used to deliver the electrode cap 7 in the storage channel 11 to the trimming station 101, and the second pushing mechanism 3 is used to deliver the electrode cap 7 in the trimming station 101 to the loading station 102.

[0056] A cleaning mechanism 4 is provided at the position of the trimming station 101 aligned with the open end of the electrode cap 7;

[0057] A heating mechanism 5 is provided at the trimming station 101 at a position aligned with the closed end of the electrode cap 7 .

[0058] The electrode caps 7 to be used are arranged in sequence in the storage channel 11. Before entering the transfer station, the electrode caps 7 to be used will be sent to the finishing station 101 by the first pushing mechanism 2. In the finishing station 101, the cleaning mechanism 4 will thoroughly clean the inner wall of the electrode cap 7 to clean the oil and dust on the inner wall of the electrode cap 7. Then, the heating mechanism 5 will heat the cleaned electrode cap 7 to keep it dry and prevent the cleaning liquid from remaining on its inner wall. Then, the second pushing mechanism 3 will send the electrode cap 7 in the finishing station 101 to the loading station 102. At this time, the electrode cap 7 still has residual heat. Based on the principle of thermal expansion and contraction, the inner diameter of the heated electrode cap 7 will become larger. Taking advantage of the residual heat of the electrode cap 7, the pressure of the welding clamp is used to make the electrode rod and the electrode cap 7 in the loading station 102 have an interference fit, which can effectively reduce the friction between the electrode cap 7 and the electrode rod, thereby reducing the wear of the electrode rod and extending the service life of the electrode rod.

[0059] Preferably, the cleaning mechanism 4 includes a cleaning head 41 and a scraper ring 42 sleeved on the outside of the cleaning head 41, and the outer wall of the scraper ring 42 is interference fit with the inner wall of the electrode cap 7;

[0060] The cleaning head 41 is connected to a first power member 43, and the first power member 43 can drive the cleaning head 41 to extend into the electrode cap 7 or withdraw from the electrode cap 7;

[0061] The cleaning head 41 is provided with a liquid spraying hole 411 and a liquid suction hole 412 . The liquid spraying hole 411 is used to inject the cleaning liquid into the electrode cap 7 , and the liquid suction hole 412 is used to drain the cleaning liquid in the electrode cap 7 .

[0062] When cleaning the inner wall of the electrode cap 7, the first power member 43 drives the cleaning head 41 to make a reciprocating motion extending into and out of the electrode cap 7. In this process, the outer wall of the scraper ring 42 presses against the inner wall of the electrode cap 7. At the same time, the liquid spray hole 411 injects the cleaning liquid into the electrode cap 7, and cooperates with the scraper ring 42 to wash off the oil stains and dust on the inner wall of the electrode cap 7. Then, the liquid suction hole 412 discharges the cleaning liquid mixed with oil stains and dust in the electrode cap 7, thereby achieving a thorough cleaning of the inner wall of the electrode cap 7. As an example, the scraper ring 42 is made of elastic rubber. In the process of cleaning the inner wall of the electrode cap 7, the scraper ring 42 presses against the inner wall of the electrode cap 7, which can effectively prevent the cleaning liquid between the cleaning head 41 and the closed end of the electrode cap 7 from leaking out. As an example, the first power member 43 is an electric push rod.

[0063] Preferably, the liquid spray hole 411 is provided at the side of the cleaning head 41, and the inner wall of the scraper ring 42 is formed with a tapered wall 421 covering the liquid spray hole 411. In the process of cleaning the inner wall of the electrode cap 7, the tapered wall 421 guides the cleaning liquid sprayed from the liquid spray hole 411 to the inner wall of the electrode cap 7, which is conducive to enhancing the flushing effect of the cleaning liquid and making the cleaning liquid fully contact with the inner wall of the electrode cap 7, and is also conducive to preventing the cleaning liquid from splashing to the outer side of the electrode cap 7.

[0064] Preferably, the cleaning mechanism 4 further includes a cylinder body 44, and a piston head 45 slidably disposed in the cylinder body 44, the piston head 45 divides the cylinder body 44 into a first liquid chamber 441 and a second liquid chamber 442, and the piston head 45 is connected to the cleaning head 41 as a whole through a piston rod 46;

[0065] The piston rod 46 is provided with a liquid spraying channel 461 connecting the first liquid chamber 441 and the liquid spraying hole 411, and a liquid suction channel 462 connecting the second liquid chamber 442 and the liquid suction hole 412;

[0066] When the cleaning head 41 moves toward the closed end of the electrode cap 7, the volume of the first liquid chamber 441 decreases, and the volume of the second liquid chamber 442 increases;

[0067] A first one-way valve 471 is provided on the liquid spraying channel 461, and the first one-way valve 471 is used to limit the cleaning liquid in the electrode cap 7 from flowing into the first liquid chamber 441 through the liquid spraying channel 461;

[0068] A second one-way valve 472 is provided on the liquid suction channel 462 , and the second one-way valve 472 is used to limit the cleaning liquid in the second liquid chamber 442 from flowing into the electrode cap 7 through the liquid suction channel 462 .

[0069] Preferably, the first liquid chamber 441 is connected to the liquid storage chamber through the first check valve 481, and the second liquid chamber 442 is connected to the waste liquid chamber through the second check valve 482;

[0070] The first check valve 481 is used to limit the cleaning liquid in the first liquid chamber 441 from flowing into the liquid storage chamber, and the second check valve 482 is used to limit the cleaning liquid in the waste liquid chamber from flowing into the second liquid chamber 442 .

[0071] It is understandable that, in the process of the first power member 43 driving the cleaning head 41 to extend into the electrode cap 7, the volume of the first liquid chamber 441 is reduced, so that the cleaning liquid in the first liquid chamber 441 is injected into the electrode cap 7 through the liquid injection channel 461. As the cleaning head 41 approaches the closed end of the electrode cap 7 and the volume of the second liquid chamber 442 increases, the cleaning liquid in the electrode cap 7 will flow into the second liquid chamber 442 through the liquid suction channel 462 under the pressure of the cleaning head 41 and the negative pressure of the second liquid chamber 442, thereby draining the cleaning liquid in the electrode cap 7. When the cleaning head 41 is against the closed end of the electrode cap 7, the cleaning liquid in the electrode cap 7 has been basically emptied.

[0072] On the contrary, when the first power member 43 drives the cleaning head 41 to exit the electrode cap 7, the volume of the first liquid chamber 441 increases, generating negative pressure, thereby replenishing the cleaning liquid in the liquid storage cavity into the first liquid chamber 441. At the same time, the volume of the second liquid chamber 442 decreases, thereby discharging the cleaning liquid in the second liquid chamber 442 into the waste liquid cavity.

[0073] Preferably, the first pushing mechanism 2 includes a pushing block 21 slidably connected to the storage channel 11, and a first elastic member 22 connected to the pushing block 21, and the first elastic member 22 makes the pushing block 21 tend to approach the trimming station 101. As an example, the first elastic member 22 is a constant force spring.

[0074] Preferably, the second pushing mechanism 3 includes a second power member 31 and a pushing head 32 drivingly connected to the second power member 31. As an example, the second power member 31 is an electromagnet.

[0075] Preferably, the heating mechanism 5 includes an electric heating block 51 slidably connected to the base 1, and a second elastic member 52 connected to the electric heating block 51, and the second elastic member 52 makes the electric heating block 51 tend to approach the trimming station 101. As an example, the second elastic member 52 is a spring, and the second elastic member 52 can make the electric heating block 51 press against the electrode cap 7 in the trimming station 101, which is conducive to improving the heat transfer efficiency between the electric heating block 51 and the electrode cap 7.

[0076] Preferably, a limiting column 61 is provided between the trimming station 101 and the loading station 102, and the limiting column 61 is connected to a third elastic member 62, and the third elastic member 62 makes the limiting column 61 tend to be embedded between the trimming station 101 and the loading station 102. When the second pushing mechanism 3 is not working, the limiting column 61 is embedded between the trimming station 101 and the loading station 102 under the action of the third elastic member 62, thereby preventing the electrode cap 7 from moving between the trimming station 101 and the loading station 102 by itself. When the second pushing mechanism 3 is working, under its action, the electrode cap 7 in the trimming station 101 can overcome the elastic force of the third elastic member 62, push the limiting column 61 away, and finally reach the loading station 102. As an example, the third elastic member 62 is a spring.

[0077] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. 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 claims of the present invention.

Claims

1. A welding gun electrode cap storage device, comprising a base, characterized in that: The base is provided with a storage channel, one end of the storage channel is provided with a trimming station, and the trimming station is connected to a loading station; The base is provided with a first pushing mechanism and a second pushing mechanism, wherein the first pushing mechanism is used to send the electrode cap in the storage channel to the trimming station, and the second pushing mechanism is used to send the electrode cap in the trimming station to the loading station; The trimming station is provided with a cleaning mechanism at a position aligned with the open end of the electrode cap; The trimming station is provided with a heating mechanism at a position aligned with the closed end of the electrode cap; The cleaning mechanism comprises a cleaning head and a scraper ring sleeved on the outside of the cleaning head, wherein the outer wall of the scraper ring is interference-fitted with the inner wall of the electrode cap; The cleaning head is connected to a first power member, and the first power member can drive the cleaning head to extend into the electrode cap or withdraw from the electrode cap; The cleaning head is provided with a liquid spraying hole and a liquid suction hole. The liquid spraying hole is used to inject the cleaning liquid into the electrode cap, and the liquid suction hole is used to drain the cleaning liquid in the electrode cap.

2. A welding gun electrode cap storage device according to claim 1, characterized in that: The liquid spraying hole is arranged on the side of the cleaning head, and the inner side wall of the scraper ring is formed with a tapered wall covering the liquid spraying hole.

3. A welding gun electrode cap storage device according to claim 1, characterized in that: The cleaning mechanism also includes a cylinder body and a piston head slidably arranged in the cylinder body, the piston head divides the cylinder body into a first liquid chamber and a second liquid chamber, and the piston head is connected to the cleaning head through a piston rod to form a whole; The piston rod is provided with a liquid spraying channel connecting the first liquid chamber and the liquid spraying hole, and a liquid suction channel connecting the second liquid chamber and the liquid suction hole; When the cleaning head moves toward the closed end of the electrode cap, the volume of the first liquid chamber decreases and the volume of the second liquid chamber increases; The liquid spraying channel is provided with a first one-way valve, and the first one-way valve is used to limit the cleaning liquid in the electrode cap from flowing into the first liquid chamber through the liquid spraying channel; The liquid suction channel is provided with a second one-way valve, and the second one-way valve is used to limit the cleaning liquid in the second liquid chamber from flowing into the electrode cap through the liquid suction channel.

4. A welding gun electrode cap storage device according to claim 3, characterized in that: The first liquid chamber is connected to a liquid storage chamber through a first check valve, and the second liquid chamber is connected to a waste liquid chamber through a second check valve; The first check valve is used to limit the cleaning liquid in the first liquid chamber from flowing into the liquid storage chamber, and the second check valve is used to limit the cleaning liquid in the waste liquid chamber from flowing into the second liquid chamber.

5. The welding gun electrode cap storage device according to claim 1, characterized in that: The first pushing mechanism comprises a pushing block slidably connected to the storage channel, and a first elastic member connected to the pushing block, wherein the first elastic member causes the pushing block to tend to approach the trimming station.

6. A welding gun electrode cap storage device according to claim 1, characterized in that: The second pushing mechanism includes a second power member and a pushing head transmission-connected to the second power member.

7. A welding gun electrode cap storage device according to claim 1, characterized in that: The heating mechanism comprises an electric heating block slidably connected to the base, and a second elastic member connected to the electric heating block, wherein the second elastic member makes the electric heating block tend to approach the trimming station.

8. The welding gun electrode cap storage device according to claim 1, characterized in that: A limiting column is provided between the trimming station and the loading station, and the limiting column is connected to a third elastic member, and the third elastic member enables the limiting column to have a tendency to be embedded between the trimming station and the loading station.

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