Strip hoop spot welding die

Abstract

The utility model discloses a strip hoop spot welding die which comprises a conveying belt structure, a strip hoop, a die structure, an upper electrode welding rod and a lower electrode welding rod. When the strip hoop is in contact with the first contact sensor, the conveying belt stops running, the first electric push rod pushes the strip hoop backwards into the guide frame and then shrinks, the strip hoop slides into the mold by utilizing the inclination characteristic, the right end face of the strip hoop is attached to the baffle, the strip hoop touches the second contact sensor on the left end face of the baffle, and the strip hoop is clamped into the mold. The upper electrode welding rod moves downwards through external control and is matched with electrification of the lower electrode welding rod to conduct spot welding action on the strip clamp, the upper electrode welding rod is reset after spot welding is completed, the third electric push rod contracts, the connecting rod drives the mold to rotate, the strip clamp slides outwards and then is reset, and the conveying belt operates synchronously. And the effect of automatically carrying out strip hoop spot welding is achieved.

Description

Technical Field

[0001] The utility model relates to the field of spot welding, in particular to a strip clamp spot welding die. Background Art

[0002] Spot welding refers to a welding method that uses a cylindrical electrode to form a weld between the contact surfaces of two overlapping workpieces. During spot welding, pressure is first applied to make the workpieces in close contact, and then the current is turned on. The contact between the workpieces melts under the action of resistance heat, and a weld is formed after cooling. Spot welding is mainly used for welding thin plate components and stampings with a thickness of less than 4mm, and is particularly suitable for welding automobile bodies, carriages, and aircraft fuselages.

[0003] However, most of the current spot welding molds usually require workers to load and unload materials when spot welding strip clamps, and cannot achieve the effect of automatic spot welding of strip clamps. The labor cost is high, and the workers cannot perform spot welding for a long time. The labor intensity is high, time-consuming and labor-intensive. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a strip clamp spot welding die.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a strip clamp spot welding mold, comprising a conveyor belt structure, a strip clamp, a mold structure, an upper electrode welding rod and a lower electrode welding rod, the conveyor belt structure is used to convey the strip clamp, the mold structure is used to limit the strip clamp, the upper electrode welding rod and the lower electrode welding rod are used to spot weld the strip clamp, and the upper electrode welding rod and the lower electrode welding rod are electrically connected to the outside; the conveyor belt structure comprises a conveyor belt, a rectangular groove, a guide frame, a first contact sensor and a first electric push rod, a rectangular groove is opened on the right rear end face of the conveyor belt, a guide frame is arranged on the rear side of the rectangular groove, a first contact sensor is installed on the upper side of the right end face of the inner wall of the conveyor belt, a first electric push rod is installed on the right side of the front end face of the conveyor belt, and the rear end of the first electric push rod passes through the conveyor belt, and the conveyor belt is arranged on the left side of the mold structure.

[0006] Optionally, the mold structure includes a mold, a second electric push rod, a baffle, a connecting rod and a rotating structure. A second electric push rod is installed in the middle of the upper side of the right end surface of the mold, and the left end of the second electric push rod passes through the mold and is fixedly connected to the baffle. One end of a connecting rod is fixed in the middle of the lower end surface of the mold, and the other end of the connecting rod is rotatably connected to the rotating structure. The left end surface of the baffle is fitted with a strip clamp.

[0007] Optionally, the rotating structure includes a base, a rotating seat, a third electric push rod and a rotating seat, the left side of the front end surface of the base is rotatably connected to the rotating seat via a rotating shaft, the right end surface of the rotating seat is fixedly connected to one end of the third electric push rod, and the other end of the third electric push rod is rotatably connected to the rotating seat via a rotating shaft, the rear end surface of the rotating seat is fixedly connected to the connecting rod, and the lower end of the connecting rod is rotatably connected to the base via a rotating shaft.

[0008] Optionally, the upper end of the upper electrode welding rod and the lower end of the lower electrode welding rod are fixedly connected to the outside, and the upper electrode welding rod is parallel to the lower electrode welding rod, which is conducive to spot welding of the strip clamp.

[0009] Optionally, the guide frame and the mold have the same inclination angle, which facilitates the strip clamp to slide from the guide frame to the inside of the mold.

[0010] Optionally, the left middle portion of the lower end surface of the mold is fixedly connected to the lower electrode electrode, and the upper end surface of the lower electrode electrode fits with the strip clamp, so as to facilitate positioning spot welding of the strip clamp through the cooperation of the lower electrode electrode and the upper electrode electrode.

[0011] Optionally, a second contact sensor is installed on the lower side of the left end surface of the baffle to prevent the upper electrode welding rod and the lower electrode welding rod from performing spot welding action too early.

[0012] Beneficial effects of the utility model:

[0013] The utility model discloses a strip clamp spot welding mold, which is provided with a conveyor belt structure and a mold structure, and the strip clamp is conveyed from left to right by the conveyor belt. After the strip clamp touches a first contact sensor, the conveyor belt stops operating, and a first electric push rod pushes the strip clamp backward to the inside of a guide frame and then contracts. The strip clamp slides to the inside of the mold by utilizing its inclined characteristic, and the right end face of the strip clamp fits with a baffle. The strip clamp touches a second contact sensor on the left end face of the baffle. An upper electrode welding rod moves downward by external control, and spot welding is performed on the strip clamp in coordination with power supply of a lower electrode welding rod. After spot welding is completed, the upper electrode welding rod is reset, and the third electric push rod contracts, and the connecting rod drives the mold to rotate, and the strip clamp is reset after sliding to the outside, and the conveyor belt operates synchronously, thereby achieving the effect of automatically spot welding the strip clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 It is a top view of the conveyor belt structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the mold structure of the utility model;

[0017] Figure 4 This utility model structure Figure 3 A partial enlarged view of

[0018] Figure 5 It is a schematic diagram of the rotating structure of the utility model.

[0019] Among them: conveyor belt structure-1, strip clamp-2, mold structure-3, upper electrode welding rod-4, lower electrode welding rod-5, conveyor belt-11, rectangular groove-12, guide frame-13, first contact sensor-14, first electric push rod-15, mold-31, second electric push rod-32, baffle-33, connecting rod-34, rotating structure-35, second contact sensor-36, base-351, rotating seat-352, third electric push rod-353, rotating seat-354. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0021] See also Figure 1 and Figure 2 The utility model provides a strip clamp spot welding mold, comprising a conveyor belt structure 1, a strip clamp 2, a mold structure 3, an upper electrode welding rod 4 and a lower electrode welding rod 5, the conveyor belt structure 1 is used to convey the strip clamp 2, the mold structure 3 is used to limit the strip clamp 2, the upper electrode welding rod 4 and the lower electrode welding rod 5 are used to spot weld the strip clamp 2, and the upper electrode welding rod 4 and the lower electrode welding rod 5 are electrically connected to the outside; the conveyor belt structure 1 comprises a conveyor belt 11, a rectangular groove 12, a guide frame 13, a first contact sensor 14 and a first electric push rod 1 5. A rectangular groove 12 is provided on the rear end face of the right side of the conveyor belt 11, a guide frame 13 is provided on the rear side of the rectangular groove 12, a first contact sensor 14 is installed on the upper side of the right end face of the inner wall of the conveyor belt 11, a first electric push rod 15 is installed on the right side of the front end face of the conveyor belt 11, and the rear end of the first electric push rod 15 passes through the conveyor belt 11, the conveyor belt 11 is arranged on the left side of the mold structure 3, the upper end of the upper electrode welding rod 4 and the lower end of the lower electrode welding rod 5 are fixedly connected to the outside, and the upper electrode welding rod 4 is parallel to the lower electrode welding rod 5, which is conducive to spot welding of the strip clamp 2.

[0022] See also Figure 3 and Figure 4The utility model provides a strip clamp spot welding mold, the mold structure 3 includes a mold 31, a second electric push rod 32, a baffle 33, a connecting rod 34 and a rotating structure 35. The second electric push rod 32 is installed in the middle of the upper side of the right end surface of the mold 31, and the left end of the second electric push rod 32 passes through the mold 31 and is fixedly connected to the baffle 33. One end of the connecting rod 34 is fixed in the middle of the lower end surface of the mold 31, and the other end of the connecting rod 34 is rotatably connected to the rotating structure 35. The left end surface of the baffle 33 is in contact with the strip clamp 2. The guide frame 13 and the mold 31 have the same inclination angle, which facilitates the strip clamp 2 to slide from the guide frame 113 to the inside of the mold 31. The left side of the middle part of the lower end face of the mold 31 is fixedly connected to the lower electrode welding rod 5, and the upper end face of the lower electrode welding rod 5 is in contact with the strip clamp 2, which facilitates the positioning spot welding of the strip clamp 2 through the cooperation of the lower electrode welding rod 5 and the upper electrode welding rod 4. A second contact sensor 36 is installed on the lower side of the left end face of the baffle 33 to prevent the upper electrode welding rod 4 and the lower electrode welding rod 5 from performing spot welding too early.

[0023] See also Figure 5 The utility model provides a strip clamp spot welding mold, the rotating structure 35 includes a base 351, a rotating seat 352, a third electric push rod 353 and a rotating seat 354, the front end surface of the base 351 is rotatably connected to the rotating seat 352 through a rotating shaft on the left side, the right end surface of the rotating seat 352 is fixedly connected to one end of the third electric push rod 353, and the other end of the third electric push rod 353 is rotatably connected to the rotating seat 354 through a rotating shaft, the rear end surface of the rotating seat 354 is fixedly connected to the connecting rod 34, and the lower end of the connecting rod 34 is rotatably connected to the base 351 through a rotating shaft.

[0024] Here’s how it works:

[0025] First, fix the utility model to the desired position and make circuit connections;

[0026] Second, the strip clamp 2 is transported from left to right by the conveyor belt 11. When the right end face of the strip clamp 2 contacts the first contact sensor 14, the first contact sensor 14 controls the conveyor belt 11 to stop operating and controls the first electric push rod 15 to extend. The first electric push rod 15 pushes the strip clamp 2 backward to the inside of the guide frame 13 and then retracts it. The guide frame 13 and the mold 31 have the same inclination angle, so that the strip clamp 2 inside the guide frame 13 slides to the mold 31.

[0027] Third, the right end face of the strip clamp 2 is fitted with the baffle 33, and the strip clamp 2 touches the second contact sensor 36. The second contact sensor 36 feeds back to the external controller, so that the upper electrode electrode 4 moves downward to perform spot welding. After the lower electrode electrode 5 is energized to perform spot welding on the strip clamp 2, the power is stopped and the upper electrode electrode 4 is reset. At this time, the third electric push rod 353 contracts, and the third electric push rod 353 drives the connecting rod 34 to rotate through the rotating seat 354. The connecting rod 34 drives the mold 31 to rotate, so that the strip clamp 2 inside the mold 31 slides to the left to the outside and then resets. At the same time, the conveyor belt 11 operates, thereby achieving the effect of automatically spot welding the strip clamp 2.

[0028] Fourthly, by controlling the second electric push rod 32 to extend and retract, the second electric push rod 32 drives the baffle 33 to move left and right, thereby adjusting the position of the baffle 33 and being able to adapt to the spot welding work of strip clamps 2 of different specifications.

[0029] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0030] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0031] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A strip clamp spot welding die, comprising a conveyor belt structure (1) and a strip clamp (2), wherein the conveyor belt structure (1) is used to convey the strip clamp (2); Features: It also comprises a mold structure (3), an upper electrode welding rod (4) and a lower electrode welding rod (5), wherein the mold structure (3) is used to limit the position of the strip clamp (2), the upper electrode welding rod (4) and the lower electrode welding rod (5) are used to spot weld the strip clamp (2), and the upper electrode welding rod (4) and the lower electrode welding rod (5) are electrically connected to the outside; The conveyor belt structure (1) comprises a conveyor belt (11), a rectangular groove (12), a guide frame (13), a first contact sensor (14) and a first electric push rod (15); a rectangular groove (12) is provided on the right rear end face of the conveyor belt (11); a guide frame (13) is provided on the rear side of the rectangular groove (12); a first contact sensor (14) is installed on the upper side of the right end face of the inner wall of the conveyor belt (11); a first electric push rod (15) is installed on the right side of the front end face of the conveyor belt (11); and the rear end of the first electric push rod (15) passes through the conveyor belt (11); and the conveyor belt (11) is arranged on the left side of the mold structure (3).

2. A strip clamp spot welding mold according to claim 1, characterized in that: The mold structure (3) comprises a mold (31), a second electric push rod (32), a baffle (33), a connecting rod (34) and a rotating structure (35); the second electric push rod (32) is installed in the middle of the upper side of the right end surface of the mold (31), and the left end of the second electric push rod (32) passes through the mold (31) and is fixedly connected to the baffle (33); one end of the connecting rod (34) is fixed in the middle of the lower end surface of the mold (31), and the other end of the connecting rod (34) is rotatably connected to the rotating structure (35); the left end surface of the baffle (33) is in contact with the strip clamp (2).

3. A strip clamp spot welding mold according to claim 2, characterized in that: The rotating structure (35) comprises a base (351), a rotating seat (352), a third electric push rod (353) and a rotating seat (354); the left side of the front end surface of the base (351) is rotatably connected to the rotating seat (352) via a rotating shaft; the right end surface of the rotating seat (352) is fixedly connected to one end of the third electric push rod (353), and the other end of the third electric push rod (353) is rotatably connected to the rotating seat (354) via a rotating shaft; the rear end surface of the rotating seat (354) is fixedly connected to the connecting rod (34), and the lower end of the connecting rod (34) is rotatably connected to the base (351) via a rotating shaft.

4. The strip clamp spot welding mold according to claim 1, characterized in that: The upper end of the upper electrode welding rod (4) and the lower end of the lower electrode welding rod (5) are fixedly connected to the outside, and the upper electrode welding rod (4) is parallel to the lower electrode welding rod (5).

5. The strip clamp spot welding mold according to claim 2, characterized in that: The guide frame (13) and the mold (31) have the same inclination angle.

6. The strip clamp spot welding mold according to claim 2, characterized in that: The left side of the middle portion of the lower end surface of the mold (31) is fixedly connected to the lower electrode welding rod (5), and the upper end surface of the lower electrode welding rod (5) is in contact with the strip clamp (2).

7. The strip clamp spot welding mold according to claim 2, characterized in that: A second contact sensor (36) is installed on the lower side of the left end surface of the baffle (33).

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