Electric servo automatic welding pliers

Abstract

The utility model discloses an electric servo automatic electrode holder, which belongs to the technical field of automatic electrode holders, and comprises a C-shaped electrode holder and a mechanical arm, the end part of the C-shaped electrode holder is fixedly connected with a mounting column, the outer side of the mounting column is provided with a reinforced fixing mechanism, the end surface of the mounting column is provided with a square groove, and the mechanical arm is fixedly connected with the C-shaped electrode holder. And a plurality of first insertion holes are formed in the outer side of the end part of the mounting column. According to the utility model, the mounting column is inserted into the inner cavity of the connecting groove, the elastic force of the second spring is utilized to drive the outer sliding sleeve to move to the outer side of the round head column, and the outer sliding sleeve pushes the round head column and the first plug pin to move towards the inner side, so that the end part of the first plug pin is inserted into the first plug hole in the side part of the mounting column; according to the electric servo automatic welding pliers, the mounting column and the connecting column are connected, then the C-shaped welding pliers and the mechanical arm are connected, the square block is inserted into the square groove, the connection firmness between the C-shaped welding pliers and the mechanical arm is guaranteed, and the practicability of the electric servo automatic welding pliers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic welding tongs, and more specifically, to an electric servo automatic welding tong. Background Art

[0002] With the development of modern industry, robots have gradually entered modern factories, and the application of automated welding technology in the automotive field has become increasingly widespread. Therefore, electric servo automatic welding tongs are becoming more and more common in the body welding process. Different from traditional suspended spot welders, each electric servo automatic welding tong is directly connected to the robot through a bracket. The robot replaces manual operation and realizes automated welding without human operation.

[0003] After retrieval, the utility model patent with the publication number of CN210789773U discloses an electric servo automatic welding tong, including a C-shaped welding tong. One side of the C-shaped welding tong is fixedly connected with a first connecting plate. A second connecting plate is arranged on one side of the first connecting plate. A first straight slot is arranged on one side of the second connecting plate. A second straight slot is arranged on the other side of the second connecting plate. An inclined plate is arranged between the first connecting plate and the second connecting plate. Vertical plates are arranged on both the front and rear sides of the first connecting plate. This patent fixes the vertical plates to both the front and rear sides of the first connecting plate through bolts, which can limit the displacement of the inclined plate in the front and rear directions. This structure avoids fixing the C-shaped welding tong to the robotic arm in the direction parallel to the C-shaped welding tong, but fixes the first connecting plate and the second connecting plate in their normal direction positions. Then, through the cooperation of the baffle and the second straight slot, the C-shaped welding tong can be effectively fixed, and loosening of the welding tong during long-term use can be avoided. However, the above patent still has the following deficiencies: Although the above patent can avoid loosening at the connection between the welding tong and the robotic arm during long-term use, the installation is relatively complex. Therefore, we propose an electric servo automatic welding tong. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an electric servo automatic welding tong.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] An electric servo automatic welding tongs, comprising a C-shaped welding tongs and a robotic arm. An installation column is fixedly connected to the end of the C-shaped welding tongs. A strengthening and fixing mechanism is arranged on the outer side of the installation column. A square groove is formed on the end face of the installation column, and a plurality of first jacks are formed on the outer side of the end of the installation column. A connecting column is fixedly connected to the end of the robotic arm. A connecting groove is arranged on the end face of the connecting column. A square block is fixedly connected to the middle of the inner cavity of the connecting groove. The end of the square block is movably sleeved into the inner cavity of the square groove. A plurality of telescopic grooves are formed on the outer side of the connecting groove. First springs are fixedly connected to the inner walls of the telescopic grooves. The ends of the first springs are fixedly connected with round head columns. The ends of the round head columns are fixedly connected with first pins. The ends of the first pins are movably sleeved into the inner cavities of the first jacks. A plurality of second springs are fixedly connected to the end of the connecting column. The ends of the second springs are fixedly connected with an outer sliding sleeve. The outer sliding sleeve is sleeved on the outer side of the connecting column. The outer side surface of the connecting column is in contact with the inner side surface of the outer sliding sleeve. A second jack is arranged at the top of one end of the outer sliding sleeve.

[0007] As a preferred solution of the present utility model, the strengthening and fixing mechanism includes a fixing ring fixedly sleeved on the outer side of the installation column. An inserting ring groove is formed on the side surface of the connecting groove. The end of the outer sliding sleeve is movably sleeved into the inner cavity of the inserting ring groove. A fixing cylinder is fixedly connected to the top of the fixing ring. A third spring is fixedly connected to the top of the inner cavity of the fixing cylinder. The bottom end of the third spring is fixedly connected with a pushing block. A second pin is fixedly connected to the bottom surface of the pushing block. The bottom end of the second pin is movably sleeved into the inner cavity of the second jack. A pull rod is fixedly connected to the top surface of the pushing block. The top end of the pull rod is movably sleeved on the top of the fixing cylinder and fixedly connected with a pulling plate.

[0008] As a preferred solution of the present utility model, two pulling rings are fixedly connected to the end face of the outer sliding sleeve.

[0009] As a preferred solution of the present utility model, the inner wall of the square groove is in contact with the side surface of the square block, and the outer diameter of the installation column is equal to the inner diameter of the connecting groove.

[0010] As a preferred solution of the present utility model, the outer diameter of the first pin is equal to the inner diameter of the first jack.

[0011] As a preferred solution of the present utility model, the inner wall of the inserting ring groove is in contact with the side surface of one end of the outer sliding sleeve, and the outer diameter of the second pin is equal to the inner diameter of the second jack.

[0012] Compared with the prior art, the advantages of the present utility model are as follows:

[0013] (1) In this utility model, by inserting the mounting post into the inner cavity of the connecting groove, the elastic force of the second spring drives the outer sliding sleeve to move to the outside of the round head post. The outer sliding sleeve pushes the round head post and the first pin to move inward, so that the end of the first pin is inserted into the first jack on the side of the mounting post, thereby connecting the mounting post and the connecting post, and further connecting the C-shaped welding tongs and the robotic arm. By inserting the square block into the square groove, the connection firmness between the C-shaped welding tongs and the robotic arm is ensured.

[0014] (2) In this utility model, when the outer sliding sleeve pushes the round head post, the end of the outer sliding sleeve is inserted into the inner cavity of the insertion ring groove, and the elastic force of the third spring drives the second pin to be inserted into the second jack at the end of the outer sliding sleeve, thereby fixing the outer sliding sleeve, ensuring the stability of the outer sliding sleeve pushing the first pin, and further ensuring the connection firmness between the C-shaped welding tongs and the robotic arm, improving the working quality of the electric servo automatic welding tongs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is an exploded view of the overall structure of this utility model;

[0017] Figure 3 is a schematic cross-sectional view of this utility model;

[0018] Figure 4 is a schematic diagram of the structure of the outer sliding sleeve of this utility model;

[0019] Figure 5 For this utility model Figure 3 is an enlarged schematic view of part A;

[0020] Figure 6 For this utility model Figure 3 is an enlarged schematic view of part B.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1, C-shaped welding tongs; 2, robotic arm; 3, mounting post; 4, square groove; 5, first jack; 6, connecting post; 7, connecting groove; 8, square block; 9, telescopic groove; 10, first spring; 11, round head post; 12, first pin; 13, second spring; 14, outer sliding sleeve; 15, second jack; 16, strengthening and fixing mechanism; 17, fixing ring; 18, insertion ring groove; 19, fixing cylinder; 20, third spring; 21, push block; 22, second pin; 23, pull rod; 24, pull plate; 25, pull ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Embodiment:

[0027] Please refer to Figures 1-6 , an electric servo automatic welding tongs, comprising a C-shaped welding tongs 1 and a robotic arm 2. An installation column 3 is fixedly connected to the end of the C-shaped welding tongs 1. A strengthening and fixing mechanism 16 is arranged on the outer side of the installation column 3. A square groove 4 is formed on the end face of the installation column 3. A plurality of first jacks 5 are formed on the outer side of the end of the installation column 3. A connecting column 6 is fixedly connected to the end of the robotic arm 2. A connecting groove 7 is arranged on the end face of the connecting column 6. A square block 8 is fixedly connected to the middle of the inner cavity of the connecting groove 7. The end of the square block 8 is movably sleeved into the inner cavity of the square groove 4. A plurality of telescopic grooves 9 are formed on the outer side of the connecting groove 7. First springs 10 are fixedly connected to the inner walls of the telescopic grooves 9. A round head column 11 is fixedly connected to the end of the first spring 10. A first pin 12 is fixedly connected to the end of the round head column 11. The end of the first pin 12 is movably sleeved into the inner cavity of the first jack 5. A plurality of second springs 13 are fixedly connected to the end of the connecting column 6. An outer sliding sleeve 14 is fixedly connected to the end of the second spring 13. The outer sliding sleeve 14 is sleeved on the outer side of the connecting column 6. The outer side surface of the connecting column 6 is in contact with the inner side surface of the outer sliding sleeve 14. A second jack 15 is arranged at the top of one end of the outer sliding sleeve 14.

[0028] Specifically, please refer to Figures 1 to 5 As shown in Figures 1 to 5 , the strengthening fixing mechanism 16 includes a fixing ring 17 fixedly sleeved outside the mounting post 3. An inserting ring groove 18 is formed on the side surface of the connecting groove 7. The end of the outer sliding sleeve 14 is movably sleeved into the inner cavity of the inserting ring groove 18. A fixing cylinder 19 is fixedly connected to the top of the fixing ring 17. A third spring 20 is fixedly connected to the top of the inner cavity of the fixing cylinder 19. The bottom end of the third spring 20 is fixedly connected to a pushing block 21. The bottom surface of the pushing block 21 is fixedly connected to a second pin 22. The bottom end of the second pin 22 is movably sleeved into the inner cavity of the second jack 15. A pull rod 23 is fixedly connected to the top surface of the pushing block 21. The top end of the pull rod 23 is movably sleeved to the top of the fixing cylinder 19 and fixedly connected to a pulling plate 24.

[0029] In this embodiment, the inner wall of the inserting ring groove 18 is flush with the outer side surface of the connecting post 6, ensuring that the outer sliding sleeve 14 can be smoothly inserted into the inner cavity of the inserting ring groove 18.

[0030] Specifically, please refer to Figure 1 As shown in Figure 1 , two pulling rings 25 are fixedly connected to the end face of the outer sliding sleeve 14.

[0031] In this embodiment, the outer sliding sleeve 14 is pulled by using the pulling rings 25.

[0032] Specifically, please refer to Figure 2 and Figure 4 As shown in Figure 2 and Figure 4 , the inner wall of the square groove 4 is in contact with the side surface of the square block 8, and the outer diameter of the mounting post 3 is equal to the inner diameter of the connecting groove 7.

[0033] In this embodiment, the stability of the square block 8 inserted into the inner cavity of the square groove 4 is ensured, and the stability of the end of the mounting post 3 inserted into the inner cavity of the connecting groove 7 is ensured.

[0034] Specifically, please refer to Figure 2 and Figure 4 As shown in Figure 2 and Figure 4 , the outer diameter of the first pin 12 is equal to the inner diameter of the first jack 5.

[0035] In this embodiment, the stability of the first pin 12 inserted into the inner cavity of the first jack 5 is ensured, and further the stability of the connection between the connecting post 6 and the mounting post 3 is ensured.

[0036] Specifically, please refer to Figure 2 and Figure 4 As shown in Figure 2 and Figure 4 , the inner wall of the inserting ring groove 18 is in contact with the side surface of one end of the outer sliding sleeve 14, and the outer diameter of the second pin 22 is equal to the inner diameter of the second jack 15.

[0037] In this embodiment, the stability of the end of the outer sliding sleeve 14 inserted into the inner cavity of the inserting ring groove 18 is ensured, and at the same time the stability of the bottom end of the second pin 22 inserted into the inner cavity of the second jack 15 is ensured, and further the stability of the connection between the fixing ring 17 and the outer sliding sleeve 14 is ensured.

[0038] Working principle: During installation, first pull the pull ring 25 to move the outer sliding sleeve 14 backward. At this time, the elastic force of the first spring 10 drives the first bolt 12 to retract into the inner cavity of the telescopic groove 9. Then, insert the end of the mounting post 3 into the connecting groove 7 at the end of the connecting post 6, and make the square block 8 insert into the square groove 4. Then release the pull ring 25. At this time, the elastic force of the second spring 13 drives the outer sliding sleeve 14 to move, and uses the outer sliding sleeve 14 to push the round head post 11 into the inner cavity of the telescopic groove 9. The telescopic groove 9 drives the first bolt 12 to insert into the first jack 5 on the side of the mounting post 3, so as to fix between the connecting post 6 and the mounting post 3, and further connect between the C-shaped welding tong 1 and the robotic arm 2. Finally, move the pull plate 24 upward to make the second bolt 22 move upward, so that the end of the outer sliding sleeve 14 inserts into the inner cavity of the insertion ring groove 18. At this time, release the pull plate 24, and use the elastic force of the third spring 20 to drive the push block 21 and the second bolt 22 to move downward, so that the second bolt 22 inserts into the second jack 15, so as to fix between the fixed ring 17 and the outer sliding sleeve 14, ensure the stability of the outer sliding sleeve 14 to push the round head post 11, and further ensure the firmness of the connection between the C-shaped welding tong 1 and the robotic arm 2;

[0039] During disassembly, first pull the pull plate 24 to make the second bolt 22 disengage from the inner cavity of the second jack 15, so as to release the fixation between the fixed ring 17 and the outer sliding sleeve 14. Then pull the pull ring 25 to move the outer sliding sleeve 14 backward, and make the outer sliding sleeve 14 completely move away from the outside of the telescopic groove 9. Use the restoring elastic force of the first spring 10 to drive the round head post 11 and the first bolt 12 to move outward, so that the end of the first bolt 12 disengages from the inner cavity of the first jack 5, so as to release the fixation between the connecting post 6 and the mounting post 3. Finally, pull out the end of the mounting post 3 from the inner cavity of the connecting groove 7, so as to disassemble the C-shaped welding tong 1 and the robotic arm 2, and that's it.

[0040] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. An electric servo automatic welding tongs, comprising a C-shaped welding tongs (1) and a mechanical arm (2), characterized in that: The end of the C-shaped welding clamp (1) is fixedly connected to a mounting column (3), the outer side of the mounting column (3) is provided with a reinforcing fixing mechanism (16), the end surface of the mounting column (3) is provided with a square groove (4), the outer side of the end of the mounting column (3) is provided with a plurality of first plug holes (5), the end of the mechanical arm (2) is fixedly connected to a connecting column (6), the end surface of the connecting column (6) is provided with a connecting groove (7), the middle part of the inner cavity of the connecting groove (7) is fixedly connected to a square block (8), the end of the square block (8) is movably sleeved to the inner cavity of the square groove (4), the outer side of the connecting groove (7) is provided with a plurality of telescopic grooves (9), the inner walls of the telescopic grooves (9) are all fixedly connected to the inner cavity of the square groove (4), and the outer side of the connecting groove (7) is provided with a plurality of telescopic grooves (9). A first spring (10) is fixedly connected, the end of the first spring (10) is fixedly connected to a round head column (11), the end of the round head column (11) is fixedly connected to a first latch (12), the end of the first latch (12) is movably sleeved into the inner cavity of the first plug hole (5), the end of the connecting column (6) is fixedly connected to a plurality of second springs (13), the end of the second spring (13) is fixedly connected to an outer sleeve (14), the outer sleeve (14) is sleeved on the outer side of the connecting column (6), the outer side surface of the connecting column (6) and the inner side surface of the outer sleeve (14) are in contact with each other, and a second plug hole (15) is provided at the top of one end of the outer sleeve (14).

2. The electric servo automatic welding tongs according to claim 1, characterized in that: The reinforcing fixing mechanism (16) comprises a fixing ring (17) fixedly sleeved on the outer side of the mounting column (3); a plug-in ring groove (18) is provided on the side of the connecting groove (7); the end of the outer sliding sleeve (14) is movably sleeved into the inner cavity of the plug-in ring groove (18); the top of the fixing ring (17) is fixedly connected to a fixing cylinder (19); the top of the inner cavity of the fixing cylinder (19) is fixedly connected to a third spring (20); the bottom end of the third spring (20) is fixedly connected to a push block (21); the bottom surface of the push block (21) is fixedly connected to a second latch (22); the bottom end of the second latch (22) is movably sleeved into the inner cavity of the second plug hole (15); the top surface of the push block (21) is fixedly connected to a pull rod (23); the top end of the pull rod (23) is movably sleeved into the top of the fixing cylinder (19) and is fixedly connected to a pull plate (24).

3. The electric servo automatic welding tongs according to claim 1, characterized in that: Two pull rings (25) are fixedly connected to the end surface of the outer sliding sleeve (14).

4. The electric servo automatic welding tongs according to claim 1, characterized in that: The inner wall of the square groove (4) fits the side surface of the block (8), and the outer diameter of the mounting column (3) is equal to the inner diameter of the connecting groove (7).

5. The electric servo automatic welding tongs according to claim 1, characterized in that: The outer diameter of the first plug pin (12) is equal to the inner diameter of the first plug hole (5).

6. The electric servo automatic welding tongs according to claim 2, characterized in that: The inner wall of the insert ring groove (18) is in contact with the side surface of one end of the outer sliding sleeve (14), and the outer diameter of the second plug pin (22) is equal to the inner diameter of the second insert hole (15).

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