Material fixing mechanism for electric welding machine

Abstract

The utility model discloses a material fixing mechanism for an electric welding machine. The material fixing mechanism comprises a resistance welding machine body, an upper electrode and a lower electrode. The supporting plate, the positioning plate, the containing shell, the positioning device, the movable frame, a rectangular through hole, an adjusting device, a driving assembly, a through hole and a limiting hole are used in cooperation, and the problem that when an existing resistance welding machine is used for welding two plates, an operator usually needs to take up the two plates with hands and place the plates between two electrodes of the welding machine, and the welding efficiency is high is solved. The method comprises the following steps of: stacking parts needing to be welded together, pressing an upper electrode downwards and electrifying, enabling current to generate resistance heat through a contact part of plates, melting the resistance heat to form nuggets, keeping for a certain time, cutting off power, cooling and solidifying under the action of pressure, and finishing welding connection. The accurate alignment of the two plates is difficult to ensure when the plates are manually stacked. The problems that in the manual operation process of an operator, the hand needs to be close to an electrode and a high-temperature area, and certain safety risks exist are solved.

Description

Technical Field

[0001] This utility model belongs to the field of electric welding machine technology, and in particular relates to a material fixing mechanism for electric welding machines. Background Technology

[0002] Resistance welding machines are a type of electric welding machine. Electric welding machines are a general term for equipment that uses electrical energy for welding, while resistance welding machines use the resistance heat generated by the current flowing through the workpiece and its contact points to locally heat the workpiece to a molten or plastic state, and then form a weld joint under pressure, thereby achieving metal connection. It belongs to a category of electric welding machines that works on a specific welding principle.

[0003] The existing technology has the following problems: When welding two plates, the existing resistance welding machine usually requires the operator to pick up the two plates by hand, place them between the two electrodes of the welding machine, and stack the parts to be welded together. Then, the upper electrode is pressed down and energized. The current passes through the contact point of the plates and generates resistance heat, which melts the plates and forms a weld nugget. After holding the nugget for a certain period of time, the power is turned off, and the plates cool and solidify under pressure, completing the welded connection. However, when manually stacking the plates, it is difficult to ensure the precise alignment of the two plates, which may lead to inaccurate welding positions. In addition, during manual operation, the operator's hands need to be close to the electrodes and high-temperature areas, which poses certain safety risks. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a material fixing mechanism for an electric welding machine, which has the advantage of conveniently fixing plates. It solves the problem that when welding two plates with existing resistance welding machines, the operator usually needs to pick up the two plates by hand, place them between the two electrodes of the welding machine, stack the parts to be welded together, then press down the upper electrode and turn on the power. The current passes through the contact point of the plates and generates resistance heat, which melts them to form a weld nugget. After holding for a certain period of time, the power is turned off, and the plates cool and solidify under pressure to complete the welding connection. However, when welding, it is difficult to ensure the precise alignment of the two plates when manually stacking them, which may lead to inaccurate welding positions. In addition, during manual operation, the operator's hands need to be close to the electrodes and high-temperature areas, which poses certain safety risks.

[0005] This utility model is implemented as follows: a material fixing mechanism for an electric welding machine includes a resistance welding machine body and an upper electrode and a lower electrode. A support plate is provided on the opposite side of the upper and lower electrodes. Positioning plates are provided on the left and right sides of the top of the support plate. A receiving shell is fixedly connected to the left side of the top of the positioning plate. A positioning device is provided in the inner cavity of the receiving shell. A movable frame is provided at the bottom of the support plate. Rectangular through holes are provided on the left and right sides of the inner side of the movable frame. An adjustment device that works with the positioning plate is provided in the inner cavity of the rectangular through holes. A driving assembly is provided on the rear side of the movable frame. A through hole is provided at the center of the bottom of the support plate. Limiting holes are provided on the left and right sides of the bottom of the support plate.

[0006] In a preferred embodiment of this invention, the top of the lower electrode passes through the through hole and extends to the outside of the through hole. The rear side of the support plate is fixedly connected to the resistance welding machine body. A sliding column is fixedly connected to the inner cavity of the rectangular through hole. The left and right sides of the movable frame are both sleeved on the surface of the sliding column and are slidably connected to the sliding column through a linear bearing. The top of the movable frame passes through the rectangular through hole and extends to the outside of the rectangular through hole.

[0007] As a preferred embodiment of this utility model, the positioning device includes a double-ended screw, a first motor is provided on the front side of the double-ended screw, a positioning frame is sleeved on the front and rear sides of the surface of the double-ended screw, a lower pressure block is provided on the inner side of the positioning frame, a limit post is provided on the left and right sides of the top of the lower pressure block, a limit plate is provided on the top of the limit post, and a tension spring is sleeved on the surface of the limit post.

[0008] In a preferred embodiment of this invention, the adjusting device includes an adjusting screw, a lifting block is sleeved on the surface of the adjusting screw, and an adjusting element is provided on the top of the adjusting screw.

[0009] In a preferred embodiment of this invention, the drive assembly includes a second motor and a drive screw. The rear side of the second motor is fixedly connected to the main body of the resistance welding machine, and the rear side of the drive screw is fixedly connected to the output end of the second motor. The front side of the drive screw passes through the movable frame and extends to the outside of the movable frame. The drive screw is threadedly connected to the through-hole of the movable frame.

[0010] In a preferred embodiment of this invention, the rear side of the double-ended screw is rotatably connected to the inner wall of the housing, the front side of the double-ended screw penetrates the housing and extends to the outer side of the housing to be fixedly connected to the output end of the first motor, the rear side of the first motor is fixedly connected to the housing, the right side of the positioning frame penetrates the inner cavity of the housing and extends to the outer side of the inner cavity of the housing, the bottom of the limiting post is fixedly connected to the lower pressure block, the top of the limiting post penetrates the inner side of the positioning frame and extends to the outer side of the positioning frame to be fixedly connected to the limiting plate, and the top and bottom of the tension spring are fixedly connected to the limiting plate and the positioning frame, respectively.

[0011] In a preferred embodiment of this invention, the bottom of the adjusting screw is rotatably connected to the inner wall of the rectangular through hole, the top of the adjusting screw passes through the rectangular through hole and extends to the outside of the rectangular through hole to be fixedly connected to the adjusting component, the lifting block is threadedly connected to the adjusting screw, and the right side of the lifting block passes through the rectangular through hole and extends to the outside of the rectangular through hole to be fixedly connected to the receiving shell.

[0012] 1. This utility model solves the problem of existing resistance welding machines, which, when welding two plates, typically require the operator to manually pick up the two plates, place them between the two electrodes of the welding machine, stack the parts to be welded together, press down the upper electrode and turn on the current. The current passes through the contact area of ​​the plates, generating resistance heat, which melts the plates to form a weld nugget. After holding the nugget for a certain period of time, the power is turned off, and the plates cool and solidify under pressure to complete the welding connection. However, when manually stacking the plates, it is difficult to ensure the precise alignment of the two plates, which may lead to inaccurate welding positions. In addition, the operator's hands need to be close to the electrodes and high-temperature areas during manual operation, which poses certain safety risks.

[0013] 2. This utility model, by setting through holes, allows the lower electrode to pass through the support plate, facilitating welding of the plate by the operator. By setting rectangular through holes, the movable frame can be limited. By setting sliding columns, the movable frame can be supported. By setting the movable frame, the housing and positioning plate can be moved synchronously during the movement, so that the plate moves synchronously with the movable frame, facilitating welding of the plate by the operator.

[0014] 3. This utility model, by setting a positioning device, can fix the plate, making it convenient for operators to weld the two plates together.

[0015] 4. This utility model, by setting an adjustment device, can adjust the position of the positioning plate so that the positions of the two positioning plates are different heights, making it convenient for operators to stack the parts of the two plates that need to be welded together.

[0016] 5. This utility model, by setting a driving component, can drive the moving frame, making it convenient for operators to move the welding position of the workpiece. By setting a second motor, it can drive the driving screw to rotate, and by setting the driving screw, it can drive the moving frame to move.

[0017] 6. This utility model, by setting a first motor, can drive the double-headed screw to rotate. By setting the double-headed screw, it can drive the positioning frame to move. By setting the positioning frame, it can clamp and fix the plate. By setting the pressing block, it can press down on the plate, making it convenient for operators to weld the plate. By setting the limiting post and limiting plate, it can limit the pressing block. By setting the tension spring, the tension released after stretching can pull the limiting plate and limiting post downward, so that the pressing block presses down on the plate.

[0018] 7. This utility model, by setting an adjusting component, can drive the adjusting screw to rotate. By setting the adjusting screw, it can drive the lifting block to rise and fall. By setting the lifting block, it can drive the positioning plate to rise and fall through the housing, thereby adjusting the position of the positioning plate, making it convenient for operators to stack the parts of the two plates that need to be welded together. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided in an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the support plate provided in this embodiment of the utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the adjustment device provided in an embodiment of the present utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the positioning device provided in an embodiment of the present invention.

[0023] In the diagram: 1. Resistance welding machine body; 2. Upper electrode; 3. Lower electrode; 4. Support plate; 5. Positioning plate; 6. Housing; 7. Positioning device; 8. Moving frame; 9. Rectangular through hole; 10. Adjustment device; 11. Drive assembly; 12. Through hole; 13. Limiting hole; 14. Sliding column; 701. Double-ended screw; 702. First motor; 703. Positioning frame; 704. Lower pressure block; 705. Limiting column; 706. Limiting plate; 707. Tension spring; 1001. Adjusting screw; 1002. Lifting block; 1003. Adjusting component; 1101. Second motor; 1102. Drive screw. Detailed Implementation

[0024] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0025] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1 to 4 As shown in the figure, the material fixing mechanism for an electric welding machine provided by this utility model embodiment includes a resistance welding machine body 1, an upper electrode 2, and a lower electrode 3. A support plate 4 is provided on one side of the upper electrode 2 and the lower electrode 3 opposite to each other. A positioning plate 5 is provided on the left and right sides of the top of the support plate 4. A housing shell 6 is fixedly connected to the left side of the top of the positioning plate 5. A positioning device 7 is provided in the inner cavity of the housing shell 6. A movable frame 8 is provided at the bottom of the support plate 4. A rectangular through hole 9 is provided on the left and right sides of the inner side of the movable frame 8. An adjustment device 10 is provided in the inner cavity of the rectangular through hole 9 to cooperate with the positioning plate 5. A drive assembly 11 is provided on the rear side of the movable frame 8. A through hole 12 is provided at the center of the bottom of the support plate 4. Limiting holes 13 are provided on the left and right sides of the bottom of the support plate 4.

[0027] refer to Figure 1 and Figure 2 The top of the lower electrode 3 passes through the through hole 12 and extends to the outside of the through hole 12. The rear side of the support plate 4 is fixedly connected to the resistance welding machine body 1. The inner cavity of the rectangular through hole 9 is fixedly connected to the sliding column 14. The left and right sides of the moving frame 8 are both sleeved on the surface of the sliding column 14 and are slidably connected to the sliding column 14 through the linear bearing. The top of the moving frame 8 passes through the rectangular through hole 9 and extends to the outside of the rectangular through hole 9.

[0028] The above solution is as follows: by setting through hole 12, the lower electrode 3 can pass through support plate 4, which is convenient for operators to weld the plate. By setting rectangular through hole 9, the movable frame 8 can be limited. By setting sliding column 14, the movable frame 8 can be supported. By setting movable frame 8, the housing 6 and positioning plate 5 can be moved synchronously during the movement, so that the plate moves synchronously with the movable frame 8, which is convenient for operators to weld the plate.

[0029] refer to Figure 4 The positioning device 7 includes a double-headed screw 701. A first motor 702 is provided on the front side of the double-headed screw 701. Positioning frames 703 are sleeved on the front and rear sides of the surface of the double-headed screw 701. A lower pressing block 704 is provided on the inner side of the positioning frame 703. Limiting posts 705 are provided on the left and right sides of the top of the lower pressing block 704. A limiting plate 706 is provided on the top of the limiting post 705. A tension spring 707 is sleeved on the surface of the limiting post 705.

[0030] The above solution involves setting up a positioning device 7 to fix the plates, making it easier for operators to weld the two plates together.

[0031] refer to Figure 3 The adjusting device 10 includes an adjusting screw 1001, a lifting block 1002 is sleeved on the surface of the adjusting screw 1001, and an adjusting member 1003 is provided on the top of the adjusting screw 1001.

[0032] Using the above solution: By setting the adjustment device 10, the position of the positioning plate 5 can be adjusted so that the positions of the two positioning plates 5 are different heights, making it convenient for operators to stack the parts of the two plates that need to be welded together.

[0033] refer to Figure 1 and Figure 2 The drive assembly 11 includes a second motor 1101 and a drive screw 1102. The rear side of the second motor 1101 is fixedly connected to the resistance welding machine body 1, and the rear side of the drive screw 1102 is fixedly connected to the output end of the second motor 1101. The front side of the drive screw 1102 passes through the movable frame 8 and extends to the outside of the movable frame 8. The drive screw 1102 is threadedly connected to the through point of the movable frame 8.

[0034] The above solution is adopted: by setting the drive component 11, the moving frame 8 can be driven, which makes it convenient for the operator to move the welding position of the workpiece. By setting the second motor 1101, the drive screw 1102 can be driven to rotate. By setting the drive screw 1102, the moving frame 8 can be moved.

[0035] refer to Figure 2 , Figure 3 and Figure 4 The rear side of the double-ended screw 701 is rotatably connected to the inner wall of the housing 6. The front side of the double-ended screw 701 penetrates the housing 6 and extends to the outer side of the housing 6, where it is fixedly connected to the output end of the first motor 702. The rear side of the first motor 702 is fixedly connected to the housing 6. The right side of the positioning frame 703 passes through the inner cavity of the housing 6 and extends to the outer side of the inner cavity of the housing 6. The bottom of the limiting post 705 is fixedly connected to the lower pressure block 704. The top of the limiting post 705 penetrates the inner side of the positioning frame 703 and extends to the outer side of the positioning frame 703, where it is fixedly connected to the limiting plate 706. The top and bottom of the tension spring 707 are fixedly connected to the limiting plate 706 and the positioning frame 703, respectively.

[0036] The above solution is as follows: by setting a first motor 702, the double-headed screw 701 can be driven to rotate. By setting a double-headed screw 701, the positioning frame 703 can be moved. By setting a positioning frame 703, the plate can be clamped and fixed. By setting a lower pressure block 704, the plate can be pressed down, which facilitates welding of the plate by the operator. By setting a limiting post 705 and a limiting plate 706, the lower pressure block 704 can be limited. By setting a tension spring 707, the tension released after stretching can pull the limiting plate 706 and the limiting post 705 downward, so that the lower pressure block 704 presses down on the plate.

[0037] refer to Figure 2 and Figure 3 The bottom of the adjusting screw 1001 is rotatably connected to the inner wall of the rectangular through hole 9. The top of the adjusting screw 1001 passes through the rectangular through hole 9 and extends to the outside of the rectangular through hole 9 and is fixedly connected to the adjusting member 1003. The lifting block 1002 is threadedly connected to the adjusting screw 1001. The right side of the lifting block 1002 passes through the rectangular through hole 9 and extends to the outside of the rectangular through hole 9 and is fixedly connected to the housing 6.

[0038] The above solution is adopted as follows: by setting the adjusting component 1003, the adjusting screw 1001 can be rotated. By setting the adjusting screw 1001, the lifting block 1002 can be raised and lowered. By setting the lifting block 1002, the positioning plate 5 can be raised and lowered through the housing 6, thereby adjusting the position of the positioning plate 5, so that the operator can stack the parts of the two plates that need to be welded together.

[0039] In use, firstly, the operator needs to turn the adjusting component 1003 to drive the adjusting screw 1001 to rotate synchronously. During the rotation of the adjusting screw 1001, the lifting block 1002 will be raised and lowered. The lifting block 1002 will drive the housing 6 and the positioning plate 5 to rise and fall synchronously, adjusting the position of the positioning plate 5. Then, the two positioning plates 5 are adjusted to the appropriate positions in sequence, so that the positions of the two positioning plates 5 are one high and one low, so that the operator can stack the parts of the two plates that need to be welded together. Then, the electrode moves downward to weld the parts of the two plates that are in contact, so that the two plates are connected.

[0040] After the two positioning plates 5 are adjusted, the two plates to be connected are placed on top of the two positioning plates 5 in turn. After placement, the first motor 702 is started, which drives the double-headed screw 701 to rotate. During the rotation of the double-headed screw 701, the two positioning frames 703 will move closer to the plate. When the positioning frames 703 contact the front and rear sides of the plate, the first motor 702 is stopped. At this time, the positioning frames 703 no longer move and clamp and fix the plate.

[0041] As the positioning frame 703 approaches the plate, it also drives the lower pressure block 704 to move synchronously towards the plate. When the lower pressure block 704 moves to the appropriate position, the inclined surface of the lower pressure block 704 will contact the plate and generate pressure. The pressure generated at this time will push the lower pressure block 704 to move upward. The lower pressure block 704 will drive the limiting plate 706 to move upward synchronously through the limiting post 705 and stretch the tension spring 707. When the plate enters the side of the lower pressure block 704 opposite to the positioning plate 5, the lower pressure block 704 is no longer squeezed. At this time, the tension released after the tension spring 707 is stretched will pull the limiting plate 706 to move downward. The limiting plate 706 will drive the lower pressure block 704 to press down through the limiting post 705, pressing down the plate, which makes it convenient for the upper electrode 2 and the lower electrode 3 to weld the plate.

[0042] Once the plates are clamped and fixed, the second motor 1101 is started to move the moving frame 8. The plates will then move synchronously with the moving frame 8, making it easier for operators to move the plates and weld the two plates.

[0043] In summary, the material fixing mechanism of this welding machine, through the coordinated use of a support plate 4, a positioning plate 5, a housing 6, a positioning device 7, a moving frame 8, a rectangular through hole 9, an adjusting device 10, a drive assembly 11, a through hole 12, and a limiting hole 13, solves the problem of existing resistance welding machines when welding two plates. Typically, the operator needs to manually pick up the two plates, place them between the two electrodes of the welding machine, stack the parts to be welded together, then press down on the upper electrode and apply current. The current passes through the contact points of the plates, generating resistance heat to melt them and form a weld nugget. After maintaining this for a certain period, the power is cut off, and the plates cool and solidify under pressure, completing the weld connection. However, during welding, it is difficult to ensure precise alignment of the two plates when manually stacking them, which may lead to inaccurate welding positions. Furthermore, the operator's hands need to be close to the electrodes and high-temperature areas during manual operation, posing certain safety risks.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material fixing mechanism for an electric welding machine, comprising a resistance welding machine body (1), an upper electrode (2), and a lower electrode (3), characterized in that: A support plate (4) is provided on one side opposite to the upper electrode (2) and the lower electrode (3). A positioning plate (5) is provided on the left and right sides of the top of the support plate (4). A housing (6) is fixedly connected to the left side of the top of the positioning plate (5). A positioning device (7) is provided in the inner cavity of the housing (6). A movable frame (8) is provided at the bottom of the support plate (4). A rectangular through hole (9) is provided on the left and right sides of the inner side of the movable frame (8). An adjustment device (10) is provided in the inner cavity of the rectangular through hole (9) to cooperate with the positioning plate (5). A drive assembly (11) is provided on the rear side of the movable frame (8). A through hole (12) is provided at the center of the bottom of the support plate (4). Limiting holes (13) are provided on the left and right sides of the bottom of the support plate (4).

2. The material fixing mechanism for an electric welding machine as described in claim 1, characterized in that: The top of the lower electrode (3) passes through the through hole (12) and extends to the outside of the through hole (12). The rear side of the support plate (4) is fixedly connected to the resistance welding machine body (1). The inner cavity of the rectangular through hole (9) is fixedly connected to a sliding column (14). The left and right sides of the moving frame (8) are both sleeved on the surface of the sliding column (14) and are slidably connected to the sliding column (14) through a linear bearing. The top of the moving frame (8) passes through the rectangular through hole (9) and extends to the outside of the rectangular through hole (9).

3. The material fixing mechanism for an electric welding machine as described in claim 1, characterized in that: The positioning device (7) includes a double-headed screw (701), a first motor (702) is provided on the front side of the double-headed screw (701), a positioning frame (703) is provided on the front and rear sides of the surface of the double-headed screw (701), a lower pressure block (704) is provided on the inner side of the positioning frame (703), a limit post (705) is provided on the left and right sides of the top of the lower pressure block (704), a limit plate (706) is provided on the top of the limit post (705), and a tension spring (707) is provided on the surface of the limit post (705).

4. The material fixing mechanism for an electric welding machine as described in claim 1, characterized in that: The adjusting device (10) includes an adjusting screw (1001), a lifting block (1002) is sleeved on the surface of the adjusting screw (1001), and an adjusting member (1003) is provided on the top of the adjusting screw (1001).

5. The material fixing mechanism for an electric welding machine as described in claim 1, characterized in that: The drive assembly (11) includes a second motor (1101) and a drive screw (1102). The rear side of the second motor (1101) is fixedly connected to the resistance welding machine body (1). The rear side of the drive screw (1102) is fixedly connected to the output end of the second motor (1101). The front side of the drive screw (1102) passes through the movable frame (8) and extends to the outside of the movable frame (8). The drive screw (1102) is threadedly connected to the through point of the movable frame (8).

6. The material fixing mechanism for an electric welding machine as described in claim 3, characterized in that: The rear side of the double-ended screw (701) is rotatably connected to the inner wall of the housing (6). The front side of the double-ended screw (701) penetrates the housing (6) and extends to the outer side of the housing (6) and is fixedly connected to the output end of the first motor (702). The rear side of the first motor (702) is fixedly connected to the housing (6). The right side of the positioning frame (703) passes through the inner cavity of the housing (6) and extends to the outer side of the inner cavity of the housing (6). The bottom of the limiting post (705) is fixedly connected to the lower pressure block (704). The top of the limiting post (705) penetrates the inner side of the positioning frame (703) and extends to the outer side of the positioning frame (703) and is fixedly connected to the limiting plate (706). The top and bottom of the tension spring (707) are fixedly connected to the limiting plate (706) and the positioning frame (703) respectively.

7. The material fixing mechanism for an electric welding machine as described in claim 4, characterized in that: The bottom of the adjusting screw (1001) is rotatably connected to the inner wall of the rectangular through hole (9). The top of the adjusting screw (1001) passes through the rectangular through hole (9) and extends to the outside of the rectangular through hole (9) and is fixedly connected to the adjusting member (1003). The lifting block (1002) is threadedly connected to the adjusting screw (1001). The right side of the lifting block (1002) passes through the rectangular through hole (9) and extends to the outside of the rectangular through hole (9) and is fixedly connected to the accommodating shell (6).

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