Intermediate frequency inverter controller of resistance welding machine

Abstract

The utility model discloses an intermediate frequency inverter controller of a resistance welding machine, which comprises a controller body, a connector electrically connected to the front surface of the controller body and a cable inserted in the connector, a positioning structure is arranged on the front surface of the controller body, and a transmission structure positioned on one side of the positioning structure is arranged on the front surface of the controller body. The positioning structure comprises connecting blocks fixedly connected to the left side and the right side of the front face of the controller body. According to the utility model, the transmission structure extrudes the pressing plate, so that the pressing plate swings by taking the pin shaft in the connecting block as the axis, and when the pressing plate moves to the front surface of the connector and the cushion pad on the back surface of the connector is respectively contacted with the connector and the cable, the effect of extruding and positioning the cable is achieved, and the structure functionality of the existing inverter controller can be improved. The device and the cable are fixed instead of a thread extrusion mode, the operation step of repeatedly disassembling and assembling a plurality of thread assemblies in the cable installation process is omitted, and the installation efficiency of a large number of cables is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inverter controllers, in particular to a medium-frequency inverter controller for a resistance welding machine. Background Art

[0002] An inverter controller, also known as an inverter power supply, is a power conversion device. Its main function is to convert 12V or 24V DC into 230V, 50Hz AC or other types of AC. This converted AC can be used in various devices to provide AC power for users in mobile power supply places or areas without electricity. The working principle of the inverter controller involves power electronics technology and automatic control technology. It is usually composed of control circuits, drive circuits, power conversion circuits and other parts.

[0003] For example, the patent number disclosed by the China Patent Network is: 202322097686.8, and the patent name is: A universal inverter controller, including an inverter controller body and a display screen, wherein the display screen is arranged on one side of the front end of the inverter controller body, and a control button is arranged below the display screen. The universal inverter controller is provided with a protective cover, a fixing plate and mounting bolts. When in use, the protective cover can play a good protective role on the outside of the inverter controller body. During installation, the inverter can be installed at the designated position by fixing the fixing plate with the mounting bolts, and after installation, the inverter controller body is in a suspended state and can be better protected. In this way, the outside has a protective structure, which is not easily damaged by the external environment and external forces, thereby ensuring the service life and solving the problem that the inverter controller is easily damaged by the external environment and external forces due to lack of external protection, thus affecting the service life.

[0004] However, the structure of the existing inverter controller is relatively simple, and the equipment and cables are mainly fixed by thread extrusion. During the cable installation process, multiple threaded components need to be repeatedly disassembled and assembled, affecting the installation efficiency of a large number of cables.

[0005] Therefore, it is necessary to design and transform the medium frequency inverter controller of the resistance welding machine. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a medium-frequency inverter controller for a resistance welding machine, which has the advantage of improving the cable connection efficiency and solves the problem that the structure of the existing inverter controller is relatively simple, the equipment and cables are mainly fixed by thread extrusion, and multiple threaded components need to be repeatedly disassembled and assembled during the cable installation process, affecting the installation efficiency of a large number of cables.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medium-frequency inverter controller for a resistance welding machine, comprising a controller body;

[0008] A connector electrically connected to the front face of the controller body;

[0009] The cable plugged into the connector;

[0010] A positioning structure is provided on the front side of the controller body;

[0011] The front side of the controller body is provided with a transmission structure located on one side of the positioning structure;

[0012] The positioning structure includes connecting blocks fixedly connected to the left and right sides of the front face of the controller body, the inner side of the connecting block is movably connected with a pressure plate through a pin shaft, the pressure plate extends to the front face of the connector away from the side of the connecting block, the back side of the pressure plate contacts the surface of the cable and the connector respectively, and the transmission structure can drive the pressure plate to swing.

[0013] As a preferred embodiment of the present invention, the transmission structure includes a screw rod movably connected to the front side of the controller body through a bearing, the surface of the screw rod is threadedly connected with a screw sleeve, the left and right sides of the screw sleeve are fixedly connected with push rods, the outer surface of the push rod is in contact with the front side of the pressure plate, the back side of the controller body is fixedly connected with a transmission motor, the rear end of the screw rod penetrates the controller body and extends to the back side of the controller body, and the rear end of the screw rod is fixedly connected to the output end of the transmission motor.

[0014] As a preferred embodiment of the present invention, a support plate located at the bottom of the screw is fixedly connected to the front side of the controller body, and a side of the support plate away from the controller body is sleeved on the surface of the screw and movably connected to the screw.

[0015] As a preferred embodiment of the present invention, guide rods are fixedly connected to the left and right sides of the front side of the controller body, and one end of the guide rod away from the controller body passes through a threaded sleeve and is fixedly connected to the surface of the support plate.

[0016] As a preferred embodiment of the utility model, a rubber sleeve is provided on the surface of the push rod, and an outer surface of the rubber sleeve is in contact with the surface of the pressure plate.

[0017] As a preferred embodiment of the utility model, a buffer pad is fixedly connected to the back side of the pressing plate, the buffer pad is made of insulating material, and a side of the buffer pad away from the pressing plate is in contact with the surface of the connector and the cable respectively.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model extrude the pressure plate through the transmission structure, so that the pressure plate swings with the pin shaft inside the connecting block as the axis. When the pressure plate moves to the front of the connector and the buffer pad on the back contacts the connector and the cable respectively, the cable is squeezed and positioned. The utility model can improve the structural functionality of the existing inverter controller, replace the method of fixing the device and the cable by thread extrusion, save the operation steps of repeatedly disassembling and assembling multiple threaded components during the cable installation process, and improve the efficiency of installing a large number of cables.

[0020] 2. The utility model can automatically drive the pressing plate to swing by arranging the screw, the screw sleeve, the push rod and the transmission motor, and can effectively adjust the extrusion strength of the pressing plate.

[0021] 3. The utility model can support the screw rod by providing a support plate, thereby increasing the contact area between the screw rod and the controller body.

[0022] 4. The utility model can limit the screw sleeve by setting a guide rod to prevent the screw sleeve from tilting during movement.

[0023] 5. The utility model can protect the push rod by providing a rubber sleeve, thereby reducing the wear of the push rod and the pressure plate during contact and friction.

[0024] 6. The utility model can improve the fixing effect of the pressure plate and increase the friction between the pressure plate and the connector by providing a buffer pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the main structure of the utility model.

[0028] In the figure: 1. controller body; 2. connector; 3. cable; 4. positioning structure; 5. transmission structure; 6. connecting block; 7. pressure plate; 8. screw; 9. screw sleeve; 10. push rod; 11. transmission motor; 12. support plate; 13. guide rod; 14. rubber sleeve; 15. buffer pad. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figures 1 to 3 As shown, the medium frequency inverter controller for resistance welding machine provided by the utility model comprises a controller body 1;

[0031] A connector 2 electrically connected to the front side of the controller body 1;

[0032] A cable 3 plugged into the connector 2;

[0033] A positioning structure 4 is provided on the front of the controller body 1;

[0034] The front of the controller body 1 is provided with a transmission structure 5 located on one side of the positioning structure 4;

[0035] The positioning structure 4 includes a connecting block 6 fixedly connected to the left and right sides of the front face of the controller body 1. The inner side of the connecting block 6 is movably connected to a pressure plate 7 via a pin shaft. The pressure plate 7 extends from one side of the connecting block 6 to the front face of the connector 2. The back side of the pressure plate 7 contacts the surface of the cable 3 and the connector 2 respectively. The transmission structure 5 can drive the pressure plate 7 to swing.

[0036] refer to Figure 3 The transmission structure 5 includes a screw rod 8 movably connected to the front face of the controller body 1 through a bearing, a screw sleeve 9 is threadedly connected to the surface of the screw rod 8, a push rod 10 is fixedly connected to the left and right sides of the screw sleeve 9, the outer surface of the push rod 10 contacts the front face of the pressure plate 7, a transmission motor 11 is fixedly connected to the back face of the controller body 1, the rear end of the screw rod 8 penetrates the controller body 1 and extends to the back face of the controller body 1, and the rear end of the screw rod 8 is fixedly connected to the output end of the transmission motor 11.

[0037] As a technical optimization solution of the utility model, by arranging the screw rod 8, the screw sleeve 9, the push rod 10 and the transmission motor 11, the pressing plate 7 can be automatically driven to swing, and the extrusion strength of the pressing plate 7 can be effectively adjusted.

[0038] refer to Figure 3 A support plate 12 located at the bottom of the screw rod 8 is fixedly connected to the front of the controller body 1 , and a side of the support plate 12 away from the controller body 1 is sleeved on the surface of the screw rod 8 and movably connected to the screw rod 8 .

[0039] As a technical optimization solution of the present invention, by providing a support plate 12 , the screw rod 8 can be supported, and the contact area between the screw rod 8 and the controller body 1 can be increased.

[0040] refer to Figure 3 The left and right sides of the front side of the controller body 1 are fixedly connected with guide rods 13 , and one end of the guide rod 13 away from the controller body 1 passes through the screw sleeve 9 and is fixedly connected to the surface of the support plate 12 .

[0041] As a technical optimization solution of the present invention, by providing a guide rod 13, the screw sleeve 9 can be limited to avoid the screw sleeve 9 from tilting during the movement.

[0042] refer to Figure 2 A rubber sleeve 14 is sleeved on the surface of the push rod 10 , and the outer surface of the rubber sleeve 14 contacts the surface of the pressing plate 7 .

[0043] As a technical optimization solution of the present invention, by providing the rubber sleeve 14, the push rod 10 can be protected and the wear of the push rod 10 and the pressure plate 7 during contact friction can be reduced.

[0044] refer to Figure 3 A buffer pad 15 is fixedly connected to the back of the pressing plate 7. The buffer pad 15 is made of insulating material. The side of the buffer pad 15 away from the pressing plate 7 is in contact with the surface of the connector 2 and the cable 3 respectively.

[0045] As a technical optimization solution of the present invention, by providing the buffer pad 15 , the fixing effect of the pressure plate 7 can be improved, and the friction between the pressure plate 7 and the connector 2 can be increased.

[0046] The working principle and use process of the utility model are as follows: when in use, firstly, a plurality of cables 3 are respectively plugged into the interior of the connector 2, and then the transmission motor 11 is started. The transmission motor 11 drives the screw rod 8 to rotate, and the screw rod 8 uses the thread to push the screw sleeve 9 to move horizontally. During the movement of the screw sleeve 9, the push rod 10 is used to squeeze the pressure plate 7, so that the pressure plate 7 swings with the pin shaft inside the connecting block 6 as the axis. When the pressure plate 7 moves to the front of the connector 2 and the buffer pad 15 on the back contacts the connector 2 and the cable 3 respectively, the effect of squeezing and positioning the cable 3 is achieved.

[0047] To sum up: the medium frequency inverter controller of the resistance welding machine squeezes the pressure plate 7 through the transmission structure 5, so that the pressure plate 7 swings with the pin shaft inside the connecting block 6 as the axis. When the pressure plate 7 moves to the front of the connector 2 and the buffer pad 15 on the back contacts the connector 2 and the cable 3 respectively, the cable 3 is squeezed and positioned. The utility model can improve the structural functionality of the existing inverter controller, replace the fixation of the device and the cable 3 by thread extrusion, save the operating steps of repeatedly disassembling and assembling multiple threaded components during the installation of the cable 3, and improve the installation efficiency of a large number of cables 3.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medium frequency inverter controller for a resistance welding machine, comprising a controller body (1); A connector (2) electrically connected to the front side of the controller body (1); A cable (3) plugged into the connector (2); Features: A positioning structure (4) is provided on the front side of the controller body (1); The front side of the controller body (1) is provided with a transmission structure (5) located on one side of the positioning structure (4); The positioning structure (4) comprises a connection block (6) fixedly connected to the left and right sides of the front face of the controller body (1); the inner side of the connection block (6) is movably connected to a pressure plate (7) via a pin shaft; the pressure plate (7) extends from a side away from the connection block (6) to the front face of the connector (2); the back side of the pressure plate (7) contacts the surface of the cable (3) and the connector (2) respectively; and the transmission structure (5) can drive the pressure plate (7) to swing.

2. The medium frequency inverter controller for resistance welding machine according to claim 1, characterized in that: The transmission structure (5) comprises a screw rod (8) movably connected to the front face of the controller body (1) via a bearing, a threaded sleeve (9) being threadedly connected to the surface of the screw rod (8), a push rod (10) being fixedly connected to the left and right sides of the screw sleeve (9), the outer surface of the push rod (10) being in contact with the front face of the pressure plate (7), a transmission motor (11) being fixedly connected to the back face of the controller body (1), a rear end of the screw rod (8) penetrating the controller body (1) and extending to the back face of the controller body (1), and a rear end of the screw rod (8) being fixedly connected to an output end of the transmission motor (11).

3. The medium frequency inverter controller for resistance welding machine according to claim 2, characterized in that: A support plate (12) located at the bottom of the screw rod (8) is fixedly connected to the front of the controller body (1); the side of the support plate (12) away from the controller body (1) is sleeved on the surface of the screw rod (8) and is movably connected to the screw rod (8).

4. The medium frequency inverter controller for resistance welding machine according to claim 3, characterized in that: The left and right sides of the front side of the controller body (1) are fixedly connected with guide rods (13); one end of the guide rod (13) away from the controller body (1) passes through the screw sleeve (9) and is fixedly connected to the surface of the support plate (12).

5. The medium frequency inverter controller for resistance welding machine according to claim 2, characterized in that: The surface of the push rod (10) is covered with a rubber sleeve (14), and the outer surface of the rubber sleeve (14) is in contact with the surface of the pressing plate (7).

6. The medium frequency inverter controller for resistance welding machine according to claim 1, characterized in that: A buffer pad (15) is fixedly connected to the back of the pressing plate (7), the buffer pad (15) is made of insulating material, and the side of the buffer pad (15) away from the pressing plate (7) is in contact with the surface of the connector (2) and the cable (3) respectively.

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