Automatic welding device for electric welding of gas discharge tube

Abstract

The utility model discloses an automatic welding device for electric welding of a gas discharge tube, which relates to the technical field of gas discharge tube processing, and comprises a bearing platform and a spot welding unit, and further comprises a transfer control unit and a limiting emptying unit which are arranged on the bearing platform, the transfer control unit comprises a first servo motor, a transverse lead screw, a supporting arm, a rectangular frame, a first touch switch and a second touch switch. According to the utility model, the first touch control switch and the second touch control switch can be respectively pressed under two conditions that the rectangular frame is adjusted to two ends of the frame-shaped through groove to be limited; a first touch control switch and a second touch control switch which are used for controlling the feeding mechanism to start and stop and controlling the spot welding machine to start and stop respectively can enable the rectangular frame to be adjusted to the two ends of the frame-shaped through groove to be limited in position, so that feeding operation and spot welding operation are accurately carried out. And the equipment is simple and convenient in material conveying part transferring structure and can be conveniently and accurately transferred to a feeding area and a spot welding area.

Description

Technical Field

[0001] The utility model relates to the technical field of gas discharge tube processing, in particular to an automatic welding device for electric welding of gas discharge tubes. Background Art

[0002] The production of gas discharge tubes primarily involves mounting, sealing, and welding. Welding involves attaching one end of two sets of electrode wires to the conductive areas on either side of the porcelain tube. Two sets of spot welding heads then simultaneously weld the contact points on both sides. With technological advancements, gas discharge tube production lines are becoming increasingly automated, especially in the welding process. A conveyor directly transports the porcelain tube and two sets of electrode wires to the spot welding heads. Once the head's sensing module detects the porcelain tube and electrode wires, welding automatically begins, achieving automated welding.

[0003] Publication (Announcement) No. CN113070615A discloses an automated welding device for spot welding gas discharge tubes. The device comprises a main support frame, a power assembly, a discharge tube transport assembly, a spot welding assembly, an upper limit assembly, and a material storage assembly. The power assembly includes a second rotating rod, two sets of motor mounting plates, a power takeoff mechanism, a moving mechanism, and a transmission mechanism. The two sets of motor mounting plates are located within the main support frame, and the power takeoff mechanism is rotatably connected to the two sets of motor mounting plates at both ends. The second rotating rod is rotatably connected to the two sets of motor mounting plates at both ends. A material transfer roller is fixedly mounted on the second rotating rod, and the outer wall of the material transfer roller is provided with a protrusion. The second rotating rod is transmission-connected to the rotating portion of the power takeoff mechanism via a transmission mechanism. This invention improves welding quality and increases welding speed.

[0004] Although the above scheme loads the porcelain tube and electrode wire synchronously and places them together for spot welding, the unloading material needs to be transported by a transport frame through the cooperation of a motor and multiple chains, gears and belts. The equipment has a complex structure for mobilizing the transport components and it is difficult to accurately mobilize them to the loading area and spot welding area. Moreover, the simple placement and fixing of the porcelain tube and electrode wire on the transport components generally affects the spot welding effect. For this reason, we propose an automatic welding device for gas discharge tube electric welding. Utility Model Content

[0005] The main purpose of the utility model is to provide an automatic welding device for gas discharge tube electric welding. By setting a mobilization control unit and a limiting discharge unit, the utility model solves the problems that the mobilization structure of the equipment's material transport components is complex and difficult to accurately mobilize to the loading area and spot welding area, and the simple placement and fixing effect of the porcelain tube and electrode wire on the material transport component generally affects the spot welding effect.

[0006] In order to solve the above technical problems, the present utility model is realized by the following technical solutions: an automatic welding device for gas discharge tube electric welding, comprising a carrier platform and a spot welding unit, and further comprising: a mobilization control unit and a limiting discharge unit arranged on the carrier platform;

[0007] The mobilization control unit includes a first servo motor, a transverse screw rod, a supporting arm, a rectangular frame, a first touch switch and a second touch switch. The top surface of the supporting platform is provided with a frame-shaped through-slot, and the groove walls on opposite sides of the frame-shaped through-slot are respectively provided with a strip mounting groove. The first servo motor is fixedly mounted inside one of the strip mounting grooves. The transverse screw rod is connected to the output end of the first servo motor. The two supporting arms are "L"-shaped and are respectively located on the two strip mounting grooves. One of the supporting arms is threadedly connected to the transverse screw rod. The interior of the rectangular frame is hollow and fixedly arranged on the top ends of the two supporting arms. The first touch switch and the second touch switch are respectively fixedly mounted on the other two opposite groove walls of the frame-shaped through-slot.

[0008] The limiting discharge unit includes a second servo motor, a bidirectional screw, a support block, a porcelain tube clamp and an electrode wire clamp. The second servo motor is fixedly mounted on the inner wall of one end of the rectangular frame. The bidirectional screw is fixedly arranged at the output end of the second servo motor. The support block is in a "T" shape. The two support blocks respectively correspond to the positive and negative thread sections symmetrically arranged on the bidirectional screw. The two porcelain tube clamps are respectively fixedly arranged on the top of the two support blocks, and the electrode wire clamp is fixedly arranged at the end of the porcelain tube clamp.

[0009] Preferably, the mobilization control unit further comprises a transverse guide rod, which is fixedly mounted inside another strip-shaped mounting groove and movably passes through another support arm.

[0010] Preferably, the position limiting discharge unit further includes a longitudinal guide rod, which is fixedly arranged on the inner wall of the other end of the rectangular frame and movably passes through the two supporting blocks.

[0011] Preferably, the spot welding unit includes a spot welding machine and a spot welding head. The spot welding machine is fixedly mounted on the top surface of one side of the supporting platform. The spot welding head is fixedly mounted on the spot welding machine and is located directly above the frame-shaped through slot.

[0012] Preferably, a loading mechanism fixing seat is fixedly provided on the top surface of the other side of the supporting platform.

[0013] Preferably, the first touch switch is electrically connected to the feeding mechanism control component, and the second touch switch is electrically connected to the spot welding machine control component. The first touch switch mainly controls the start and stop operation of the feeding mechanism, and the second touch switch mainly controls the start and stop operation of the spot welding machine.

[0014] Preferably, supporting feet are fixedly provided at the corners of the bottom surface of the supporting platform.

[0015] Compared with the prior art, the utility model of an automatic welding device for gas discharge tube electric welding has the following beneficial effects:

[0016] 1. In the utility model, by setting a mobilization control unit, before the limited discharge unit places the porcelain tube and the electrode wire, the first servo motor can be operated to control the transverse screw to rotate forward and backward on the strip installation groove, and one of the support arms threadedly connected to the transverse screw can be subjected to force to provide a rectangular frame to drive the limited discharge unit to move back and forth in the frame-shaped through-slot for adjustment, and the other support arm can slide and move on the transverse guide rod to cooperate with the rectangular frame for mobilization and provide auxiliary support for it. In the two cases where the rectangular frame is mobilized to the two ends of the frame-shaped through-slot and is restricted, the first touch switch and the second touch switch can be pressed respectively to control the start and stop operation of the feeding mechanism and the start and stop operation of the spot welding machine respectively. The first touch switch and the second touch switch can enable the rectangular frame to be mobilized to the two ends of the frame-shaped through-slot to obtain a limited position to accurately perform the loading operation and the spot welding operation. The equipment has a simple and convenient mobilization structure for the transport component to accurately mobilize it to the loading area and the spot welding area.

[0017] 2. In the utility model, a limiting discharge unit is provided, and the operation of the second servo motor can control the bidirectional screw to rotate forward and backward on the rectangular frame. The two support blocks threadedly connected to the bidirectional screw and in a "T" shape can be subjected to force to drive the two porcelain tube clamps and the two sets of electrode wire clamps to adjust the spacing above the rectangular frame. The longitudinal guide rod is provided to guide the two support blocks to slide and translate to cooperate with the adjustment process and provide auxiliary support for them. The porcelain tubes and electrode wires placed on the two porcelain tube clamps and the two sets of electrode wire clamps can be clamped and limited at the same time to ensure the spot welding effect. After the two support blocks cooperate with the two porcelain tube clamps and the two sets of electrode wire clamps to open the spacing, the welded gas discharge tube can fall from the inside of the rectangular frame and the through groove in turn to complete the unloading operation. The stable fixing effect of the porcelain tubes and electrode wires on the rectangular frame also ensures the spot welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic welding device for gas discharge tube welding according to the present invention;

[0020] Figure 2 This is a front view structural diagram of an automatic welding device for gas discharge tube welding according to the present invention;

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0022] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-section structure at the middle BB;

[0023] Figure 5 The utility model is a schematic top view of the structure of an automatic welding device for gas discharge tube electric welding.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Loading platform;

[0026] 2. Mobilization control unit; 201. First servo motor; 202. Horizontal screw rod; 203. Support arm; 204. Rectangular frame; 205. First touch switch; 206. Second touch switch; 207. Horizontal guide rod;

[0027] 3. Position-limited discharge unit; 301. Second servo motor; 302. Bidirectional lead screw; 303. Support block; 304. Porcelain tube fixture; 305. Electrode wire fixture; 306. Longitudinal guide rod;

[0028] 4. Spot welding unit; 401. Spot welding machine; 402. Spot welding head;

[0029] 5. Fixed seat of feeding mechanism;

[0030] 6. Support legs. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example 1

[0034] like Figure 1 、 Figure 2 、 Figure 3 as well as Figure 5 As shown, an automatic welding device for gas discharge tube electric welding includes a carrier platform 1 and a spot welding unit 4, and further includes: a mobilization control unit 2 and a limiting discharge unit 3 arranged on the carrier platform 1;

[0035] The mobilization control unit 2 includes a first servo motor 201, a transverse screw rod 202, a supporting arm 203, a rectangular frame 204, a first touch switch 205 and a second touch switch 206. A frame-shaped through-groove is provided on the top surface of the carrier platform 1, and a strip-shaped mounting groove is provided on the groove walls on opposite sides of the frame-shaped through-groove. The first servo motor 201 is fixedly installed inside one of the strip-shaped mounting grooves. The transverse screw rod 202 is connected to the output end of the first servo motor 201. The two supporting arms 203 are "L"-shaped and are respectively located on the two strip-shaped mounting grooves. One of the supporting arms 203 is threadedly connected to the transverse screw rod 202. The rectangular frame 204 is hollow inside and fixedly set on the top of the two supporting arms 203. The first touch switch 205 and the second touch switch 206 are respectively fixedly mounted on the other two opposite groove walls of the frame-shaped through-groove.

[0036] The limiting discharge unit 3 includes a second servo motor 301, a bidirectional screw rod 302, a support block 303, a porcelain tube clamp 304 and an electrode wire clamp 305. The second servo motor 301 is fixedly mounted on the inner wall of one end of the rectangular frame 204. The bidirectional screw rod 302 is fixedly arranged at the output end of the second servo motor 301. The support block 303 is in a "T" shape. The two support blocks 303 respectively correspond to the positive and negative sections of threads symmetrically arranged on the bidirectional screw rod 302. The two porcelain tube clamps 304 are respectively fixedly arranged at the top of the two support blocks 303, and the electrode wire clamp 305 is fixedly arranged at the end of the porcelain tube clamp 304.

[0037] Furthermore, the mobilization control unit 2 further includes a transverse guide rod 207 , which is fixedly mounted inside another strip-shaped mounting groove and movably passes through another support arm 203 .

[0038] Furthermore, the spot welding unit 4 includes a spot welding machine 401 and a spot welding head 402 . The spot welding machine 401 is fixedly mounted on the top surface of one side of the supporting platform 1 . The spot welding head 402 is fixedly mounted on the spot welding machine 401 and is located directly above the frame-shaped through slot.

[0039] Furthermore, a loading mechanism fixing seat 5 is fixedly provided on the top surface of the other side of the supporting platform 1 .

[0040] Furthermore, the first touch switch 205 is electrically connected to the control component of the feeding mechanism, and the second touch switch 206 is electrically connected to the control component of the spot welding machine 401.

[0041] Furthermore, supporting feet 6 are fixedly provided at the corners of the bottom surface of the supporting platform 1 .

[0042] By mobilizing the control unit 2, the equipment can easily and precisely mobilize the material transport components to the loading area and spot welding area. Example 2

[0043] like Figure 1 、 Figure 2 、 Figure 4 as well as Figure 5 As shown, an automatic welding device for gas discharge tube electric welding includes a carrier platform 1 and a spot welding unit 4, and further includes: a mobilization control unit 2 and a limiting discharge unit 3 arranged on the carrier platform 1;

[0044] The mobilization control unit 2 includes a first servo motor 201, a transverse screw rod 202, a supporting arm 203, a rectangular frame 204, a first touch switch 205 and a second touch switch 206. A frame-shaped through-groove is provided on the top surface of the carrier platform 1, and a strip-shaped mounting groove is provided on the groove walls on opposite sides of the frame-shaped through-groove. The first servo motor 201 is fixedly installed inside one of the strip-shaped mounting grooves. The transverse screw rod 202 is connected to the output end of the first servo motor 201. The two supporting arms 203 are "L"-shaped and are respectively located on the two strip-shaped mounting grooves. One of the supporting arms 203 is threadedly connected to the transverse screw rod 202. The rectangular frame 204 is hollow inside and fixedly set on the top of the two supporting arms 203. The first touch switch 205 and the second touch switch 206 are respectively fixedly mounted on the other two opposite groove walls of the frame-shaped through-groove.

[0045] The limiting discharge unit 3 includes a second servo motor 301, a bidirectional screw rod 302, a support block 303, a porcelain tube clamp 304 and an electrode wire clamp 305. The second servo motor 301 is fixedly mounted on the inner wall of one end of the rectangular frame 204. The bidirectional screw rod 302 is fixedly arranged at the output end of the second servo motor 301. The support block 303 is in a "T" shape. The two support blocks 303 respectively correspond to the positive and negative sections of threads symmetrically arranged on the bidirectional screw rod 302. The two porcelain tube clamps 304 are respectively fixedly arranged at the top of the two support blocks 303, and the electrode wire clamp 305 is fixedly arranged at the end of the porcelain tube clamp 304.

[0046] Furthermore, the position-limiting discharge unit 3 further includes a longitudinal guide rod 306 , which is fixedly arranged on the inner wall of the other end of the rectangular frame 204 and movably passes through the two supporting blocks 303 .

[0047] Furthermore, the spot welding unit 4 includes a spot welding machine 401 and a spot welding head 402 . The spot welding machine 401 is fixedly mounted on the top surface of one side of the supporting platform 1 . The spot welding head 402 is fixedly mounted on the spot welding machine 401 and is located directly above the frame-shaped through slot.

[0048] Furthermore, a loading mechanism fixing seat 5 is fixedly provided on the top surface of the other side of the supporting platform 1 .

[0049] Furthermore, supporting feet 6 are fixedly provided at the corners of the bottom surface of the supporting platform 1 .

[0050] The porcelain tube and the electrode wire are placed and fixed on the rectangular frame 204 by the limiting discharge unit 3, and the spot welding effect is also guaranteed.

[0051] The following is the working principle of the utility model:

[0052] The first servo motor 201 operates to control the transverse screw rod 202 to rotate forward and backward on the strip mounting groove. One of the supporting arms 203 threadedly connected to the transverse screw rod 202 is subjected to force to provide a rectangular frame 204 to drive the limited discharge unit 3 to reciprocate and adjust in the frame-shaped through groove. The other supporting arm 203 slides and translates on the transverse guide rod 207 to cooperate with the adjustment of the rectangular frame 204. When the rectangular frame 204 is adjusted to the two ends of the frame-shaped through groove and is restricted, the first touch switch 205 and the second touch switch 206 are pressed respectively to control the start and stop operation of the feeding mechanism and the start and stop operation of the spot welding machine 401 respectively. When the rectangular frame 204 is adjusted to the two ends of the frame-shaped through groove and the position is limited, the feeding operation and the second touch switch 206 are accurately performed. During the spot welding operation, the second servo motor 301 controls the bidirectional lead screw 302 to rotate forward and backward on the rectangular frame 204. The two T-shaped support blocks 303, which are threadedly connected to the bidirectional lead screw 302, drive the two porcelain tube fixtures 304 and the two sets of electrode wire fixtures 305 to adjust the spacing above the rectangular frame 204. The longitudinal guide rod 306 guides the two support blocks 303 to slide and translate to cooperate with the adjustment process. The porcelain tubes and electrode wires placed on the two porcelain tube fixtures 304 and the two sets of electrode wire fixtures 305 are clamped and limited at the same time to ensure the spot welding effect. After the two support blocks 303 cooperate with the two porcelain tube fixtures 304 and the two sets of electrode wire fixtures 305 to open the spacing, the welded gas discharge tubes fall from the rectangular frame 204 and the inner side of the through groove in turn to complete the unloading operation.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic welding device for gas discharge tube electric welding, comprising a carrier (1) and a spot welding unit (4), characterized in that: Also includes: A mobilization control unit (2) and a position limiting discharge unit (3) arranged on the carrier platform (1); The mobilization control unit (2) comprises a first servo motor (201), a transverse screw rod (202), a supporting arm (203), a rectangular frame (204), a first touch switch (205) and a second touch switch (206); a frame-shaped through groove is provided on the top surface of the support platform (1); a strip-shaped mounting groove is provided on the groove walls on opposite sides of the frame-shaped through groove; the first servo motor (201) is fixedly installed inside one of the strip-shaped mounting grooves; the transverse screw rod (202) is connected to the output end of the first servo motor (201); the two supporting arms (203) are in an "L" shape and are respectively located on the two strip-shaped mounting grooves; one of the supporting arms (203) is threadedly connected to the transverse screw rod (202); the rectangular frame (204) is hollow inside and is fixedly arranged on the top ends of the two supporting arms (203); the first touch switch (205) and the second touch switch (206) are respectively fixedly installed on the groove walls on the other opposite sides of the frame-shaped through groove; The position-limiting discharge unit (3) comprises a second servo motor (301), a bidirectional screw (302), a support block (303), a porcelain tube clamp (304) and an electrode wire clamp (305), wherein the second servo motor (301) is fixedly mounted on the inner wall of one end of the rectangular frame (204), the bidirectional screw (302) is fixedly arranged at the output end of the second servo motor (301), the support block (303) is in a "T" shape, the two support blocks (303) respectively correspond to the positive and negative sections of the thread symmetrically arranged on the bidirectional screw (302), the two porcelain tube clamps (304) are respectively fixedly arranged at the top ends of the two support blocks (303), and the electrode wire clamp (305) is fixedly arranged at the end of the porcelain tube clamp (304).

2. The automatic welding device for gas discharge tube electric welding according to claim 1, characterized in that: The mobilization control unit (2) further comprises a transverse guide rod (207), wherein the transverse guide rod (207) is fixedly mounted inside another strip-shaped mounting groove and movably passes through another support arm (203).

3. The automatic welding device for gas discharge tube electric welding according to claim 1, characterized in that: The position-limiting discharge unit (3) further comprises a longitudinal guide rod (306), which is fixedly arranged on the inner wall of the other end of the rectangular frame (204) and movably passes through the two supporting blocks (303).

4. The automatic welding device for gas discharge tube welding according to claim 1, characterized in that: The spot welding unit (4) comprises a spot welding machine (401) and a spot welding head (402), wherein the spot welding machine (401) is fixedly mounted on the top surface of one side of the carrier platform (1), and the spot welding head (402) is fixedly mounted on the spot welding machine (401) and is located directly above the frame-shaped through slot.

5. The automatic welding device for gas discharge tube electric welding according to claim 4, characterized in that: A loading mechanism fixing seat (5) is fixedly provided on the top surface of the other side of the supporting platform (1).

6. The automatic welding device for gas discharge tube electric welding according to claim 5, characterized in that: The first touch switch (205) is electrically connected to the feeding mechanism control component, and the second touch switch (206) is electrically connected to the spot welding machine (401) control component.

7. The automatic welding device for gas discharge tube welding according to claim 1, characterized in that: Support legs (6) are fixedly provided at the corners of the bottom surface of the supporting platform (1).

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