Automobile part detecting and welding equipment

Abstract

The utility model relates to the technical field of welding equipment, in particular to automobile part detecting and welding equipment. Comprising a machine body, a driving device, a first connecting part, a second connecting part, a first welding part and a second welding part; a driving device is installed in the machine body, the output end of the driving device is connected with a first connecting part and a second connecting part, and the other end of the first connecting part and the other end of the second connecting part are connected with a first welding part and a second welding part. According to the utility model, the position of the nut can be detected through the structure of the part of the lower electrode holding rod, and then the welding work of the automobile part and the nut is carried out, so that the defect of manual visual inspection in the prior art is overcome, the defective rate of automobile part welding is greatly reduced, the upper electrode holding rod is not easy to damage, and the production efficiency is improved. And therefore, the welding effect of production is greatly improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to an automobile parts detection welding equipment. Background Art

[0002] During the production of automobile parts, one of the processes is to weld the automobile parts and nuts. The welding equipment in the prior art does not have a detection function. When the nuts are reversely installed or missing, they can only be observed by the naked eye. However, if it is a manual misjudgment, the defective rate of automobile parts welding will be greatly increased, and it will also cause damage to the welding head, which will greatly affect the welding effect of production. For this reason, we propose an automobile parts detection welding equipment. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an automobile parts inspection welding device, which can effectively solve the problems raised in the above-mentioned background technology after being improved.

[0004] The technical solution of the utility model is:

[0005] An automobile parts inspection welding device comprises a body, a driving device, a first connecting part, a second connecting part, a first welding part and a second welding part;

[0006] A driving device is installed inside the machine body, the output end of the driving device is connected to the first connecting part and the second connecting part respectively, and the other ends of the first connecting part and the second connecting part are connected to the first welding part and the second welding part respectively;

[0007] The first welding part comprises a lifting device and an upper electrode gripping rod, the lifting device is fixed to the machine body, a free end of the lifting device is connected to the first connecting part, and the other end of the first connecting part is connected to the upper electrode gripping rod;

[0008] The second welding part includes a lower electrode holding rod, a connecting cylinder and a sensing device. The lower electrode holding rod is installed on the second connecting part. The end of the lower electrode holding rod away from the upper electrode holding rod is connected to the connecting cylinder. The push rod end of the connecting cylinder away from the lower electrode holding rod is connected to the sensing device.

[0009] Furthermore, the driving device adopts an electric welding host.

[0010] Furthermore, the first connecting part includes a flexible connecting copper busbar, an upper connecting seat and an upper mounting column, one of the output ends of the welding host is electrically connected to the flexible connecting copper busbar, the other end of the flexible connecting copper busbar is fixedly connected to the upper connecting seat, the free end of the lifting device is fixedly connected to the upper connecting seat, an upper mounting column is fixedly installed inside the upper connecting seat, and the upper electrode grip is installed on the upper mounting column.

[0011] Furthermore, the lifting device adopts a lifting cylinder.

[0012] Furthermore, the second connecting part includes a hard-connected copper busbar, a lower connecting seat and a lower mounting column. The other output end of the electric welding host is electrically connected to the hard-connected copper busbar, the other end of the hard-connected copper busbar is fixedly connected to the lower connecting seat, a lower mounting column is fixedly installed inside the lower connecting seat, and the lower electrode grip is installed on the lower mounting column.

[0013] Furthermore, an upper electrode seat is provided at one end of the upper electrode holding rod close to the lower electrode holding rod.

[0014] Furthermore, a lower electrode seat and an electrode cover are sequentially arranged at one end of the lower electrode gripping rod close to the upper electrode gripping rod, and a positioning pin is slidably connected inside the electrode cover.

[0015] Furthermore, a push rod is provided inside the lower electrode gripping rod, the push rod is fixedly connected to the positioning pin, and the lower end of the push rod is fixedly connected to the upper push rod end of the connecting cylinder.

[0016] Furthermore, the lower push rod end of the connecting cylinder is inserted into the interior of the sensing device, and the sensing device adopts a displacement sensor.

[0017] Furthermore, a limiting block is provided between the push rod and the positioning pin.

[0018] The beneficial effects of the utility model are:

[0019] Compared with the prior art, the utility model adopts the upper electrode holder and the lower electrode holder to weld the automobile parts and the nuts. Under the action of large current, the metal on the automobile parts can be melted and then welded together with the nuts. Moreover, a connecting cylinder and a displacement sensor are also provided at the bottom of the lower electrode holder. The connecting cylinder can have a resetting function, and the displacement sensor can detect the position of the nut. In summary, the utility model can first detect the position of the nut through the structure of the lower electrode holder, and then perform the welding work of the automobile parts and the nuts, thereby changing the deficiency of the prior art that adopts manual observation with the naked eye, thereby greatly reducing the defective rate of automobile parts welding, and it is not easy to cause damage to the upper electrode holder, thereby greatly improving the welding effect of production, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 A magnified image of

[0022] Figure 3This is a schematic diagram of the structure of the utility model after the outer shell of the electrode grip is removed;

[0023] Figure 4 For this utility model Figure 3 The enlarged image in B.

[0024] In the figure, 1, machine body; 3, first connecting part; 4, second connecting part; 6, first welding part; 7, second welding part; 8, lifting device; 9, upper electrode grip rod; 10, lower electrode grip rod; 11, connecting cylinder; 12, induction device; 13, soft connecting copper bus; 14, upper connecting seat; 15, upper mounting column; 16, hard connecting copper bus; 17, lower connecting seat; 18, lower mounting column; 19, upper electrode seat; 20, lower electrode seat; 21, electrode cover; 22, positioning pin; 23, limit block; 24, push rod. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1-4 As shown,

[0027] A welding device for detecting automobile parts, comprising a body 1, a driving device, a first connecting part 3, a second connecting part 4, a first welding part 6 and a second welding part 7; the driving device is installed inside the body 1, the output end of the driving device is respectively connected to the first connecting part 3 and the second connecting part 4, the other ends of the first connecting part 3 and the second connecting part 4 are respectively connected to the first welding part 6 and the second welding part 7; the first welding part 6 comprises a lifting device 8 and an upper electrode gripper 9, the lifting device 8 is fixed to the body 1, the free end of the lifting device 8 is connected to the first connecting part 3, the other end of the first connecting part 3 is connected to the upper electrode gripper 9; the second welding part 7 comprises a lower electrode gripper 10 , connecting cylinder 11 and sensing device 12, the lower electrode gripping rod 10 is installed on the second connecting part 4, the end of the lower electrode gripping rod 10 away from the upper electrode gripping rod 9 is connected to the connecting cylinder 11, and the push rod end of the connecting cylinder 11 away from the lower electrode gripping rod 10 is connected to the sensing device 12; in this embodiment, the automobile parts and nuts are welded by using the upper electrode gripping rod 9 and the lower electrode gripping rod 10, and the metal on the automobile parts can be melted under the action of large current and then welded together with the nuts, and the connecting cylinder 11 and the sensing device 12 are also provided at the bottom of the lower electrode gripping rod 10, the connecting cylinder 11 can have a resetting function, and the sensing device 12 can detect the position of the nut.

[0028] As a preferred embodiment, the driving device adopts an electric welding main machine.

[0029] As a preferred embodiment; the first connecting part 3 includes a soft connecting copper busbar 13, an upper connecting seat 14 and an upper mounting column 15, one of the output ends of the welding host is electrically connected to the soft connecting copper busbar 13, the other end of the soft connecting copper busbar 13 is fixedly connected to the upper connecting seat 14, the free end of the lifting device 8 is fixedly connected to the upper connecting seat 14, the upper mounting column 15 is fixedly installed inside the upper connecting seat 14, and the upper electrode gripping rod 9 is installed on the upper mounting column 15; it can be understood that since the upper electrode gripping rod 9 needs to move up and down, the soft connecting copper busbar 13 is connected to it, and the soft connecting copper busbar 13 will not affect its electrical connection and fixed connection effect during the micro-movement process; the upper electrode gripping rod 9 can be driven downward by the driving of the lifting device 8, the structure is compact, and it is convenient for subsequent detection and welding.

[0030] As a preferred embodiment, the lifting device 8 adopts a lifting cylinder.

[0031] As a preferred embodiment; the second connecting part 4 includes a hard-connected copper busbar 16, a lower connecting seat 17 and a lower mounting column 18, the other output end of the electric welding host is electrically connected to the hard-connected copper busbar 16, the other end of the hard-connected copper busbar 16 is fixedly connected to the lower connecting seat 17, the lower mounting column 18 is fixedly installed inside the lower connecting seat 17, and the lower electrode grip 10 is installed on the lower mounting column 18; by adopting the hard-connected copper busbar 16, the lower electrode grip 10 is mainly fixed to make it more firm during detection and welding.

[0032] In the above first connecting part 3 and the second connecting part 4, the soft connecting copper busbar 13, the upper connecting seat 14, the upper mounting column 15, the hard connecting copper busbar 16, the lower connecting seat 17 and the lower mounting column 18 are all made of pure copper, so that they can withstand a larger current. When the electric welding host is working, the current can flow to the upper electrode grip 9 and the lower electrode grip 10, thereby facilitating welding work.

[0033] As a preferred embodiment; the upper electrode holder 19 is provided at one end of the upper electrode holder 9 close to the lower electrode holder 10; it can be understood that the purpose of providing the upper electrode holder 19 is to make it adapt to the structure of the nut, and the nut adopts a welding nut, and a welding foot is provided at one end of the welding nut. When placed normally, the welding foot of the welding nut faces downward (close to the automobile part, and the automobile part is a straight plate structure). The positioning pin 22 in the present application is a "nipple" structure. After the welding nut is installed, it will be limited by the top of the positioning pin 22, so that there is a 1mm gap between the welding foot of the welding nut and the automobile part. When the upper electrode holder 19 is pressed down to contact the welding nut (the bottom surface of the upper electrode holder 19 contacts the end surface of the welding nut), when it continues to be pressed down (the welding nut will drive the positioning pin 22 to move downward), the welding foot will contact the automobile part. At this time, the stroke of the positioning pin 22 is the stroke that the nut can be welded when it is normally installed; when the welding nut is installed upside down, the welding foot of the welding nut faces upward, and when the upper electrode holder 1 When the upper electrode holder 19 is pressed down to contact the welding leg and then continues to press down (the bottom surface of the upper electrode holder 19 contacts the welding leg of the welding nut), the other end surface of the welding nut will contact the automotive part. Since the welding leg of the welding nut is facing upward, its horizontal height is higher than the horizontal height of the top surface of the normally installed welding nut. Therefore, when the upper electrode holder 19 presses down the welding nut, the downward stroke of the positioning pin 22 will be larger than the normal welding stroke; if a zero point is set, the normal welding stroke is at the zero position, and the downward stroke of the reversed welding nut (specified positioning pin 22) will be lower than the zero position; the last case is that the welding nut is not installed. Since a blind hole is set in the upper electrode holder 19, the positioning pin 22 will enter the interior of the upper electrode holder 19 at this time. When the bottom end surface of the upper electrode holder 19 contacts the surface of the automotive part, the stroke of the upper electrode holder 19 pushing the positioning pin 22 will be smaller than the stroke of the positioning pin 22 when welding is normal, so that the downward stroke of the positioning pin 22 will be higher than the zero position.

[0034] As a preferred embodiment; the lower electrode holder 20 and the electrode cover 21 are sequentially arranged at one end of the lower electrode holder 10 close to the upper electrode holder 9, and the electrode cover 21 is internally slidably connected with a positioning pin 22; the lower electrode holder 20 is mainly used to install the electrode cover 21, and the electrode cover 21 can slide with the positioning pin 22, so that after the welding nut is installed, the positioning pin 22 can be driven downward under the downward pressure of the welding nut to produce a weldable stroke, which is convenient for the sensing device 12 to detect.

[0035] As a preferred embodiment; a push rod 24 is provided inside the lower electrode gripping rod 10, and the push rod 24 is fixedly connected to the positioning pin 22, and the lower end of the push rod 24 is fixedly connected to the upper push rod end of the connecting cylinder 11; the lower push rod end of the connecting cylinder 11 is inserted into the interior of the sensing device 12, and the sensing device 12 adopts a displacement sensor; it can be understood that when the positioning pin 22 is pressed or moved downward, it can drive the push rod 24 to move downward, and then drive the push rod inside the connecting cylinder 11 to move downward, so that the other end of the push rod can move inside the sensing device 12, so that the sensing device 12 can detect the stroke of the push rod.

[0036] As a preferred embodiment; a limit block 23 is provided between the push rod 24 and the positioning pin 22; it can be understood that by providing the limit block 23, after the upper electrode grip rod 9 is reset, the positioning pin 22 loses the downward pressing force, at this time, the connecting cylinder 11 will drive the push rod to reset, and during the resetting process, the push rod will push the push rod 24 upwards, and the push rod 24 will push the positioning pin 22 upwards, and after being pushed to a certain distance, it will be limited by the limit block 23, so that the push rod, the push rod 24 and the positioning pin 22 will not continue to move upward, and then the push rod, the push rod 24 and the positioning pin 22 will all return to their original positions.

[0037] The working principle of the utility model is as follows: firstly, the automobile parts and nuts are installed on the positioning pin 22, then, the lifting device 8 is started to drive the upper electrode gripper 9 to move downward, and the upper electrode seat 19 continues to press down after contacting the nut, so that the nut will drive the positioning pin 22 to move downward, and the positioning pin 22 drives the push rod 24 and the push rod to move downward, so that the push rod moves a certain distance inside the sensing device 12, and the stroke of the push rod is detected by the sensing device 12. If it is a normal weldable stroke, a signal will be transmitted to the controller, and the driving device is turned on by the controller, so that the upper electrode gripper 9 and the lower electrode gripper 10 generate a large current, and then a high temperature is generated to melt the metal of the welding foot on the automobile parts and the welding nut for welding. After the welding is completed, the lifting device 8 drives the upper electrode gripper 9 to reset; in addition, if the welding nut is installed upside down or missed, the stroke of the push rod is not a weldable stroke. At this time, the controller will not control the start of the driving device, and the welding work will not be performed.

[0038] It should be pointed out that the main problem in the prior art is that the welding equipment in the prior art does not have a detection function. When the nut is reversely installed or missing, it can only be observed by naked eyes. However, if it is misjudged by humans, the welding defective rate of automobile parts will be greatly increased, and the welding head will be damaged, which will greatly affect the welding effect of production.

[0039] Therefore, after the improvement of this application, the utility model can first detect the position of the nut through the structure of the lower electrode gripper 10, and then perform the welding work of the automobile parts and the nuts, thereby changing the deficiency of the prior art using manual visual observation, thereby greatly reducing the defective rate of automobile parts welding, and it is not easy to cause damage to the upper electrode gripper 9, thereby greatly improving the welding effect of production.

[0040] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An automobile parts inspection welding equipment, characterized in that: It includes a machine body, a driving device, a first connecting part, a second connecting part, a first welding part and a second welding part; A driving device is installed inside the machine body, the output end of the driving device is connected to the first connecting part and the second connecting part respectively, and the other ends of the first connecting part and the second connecting part are connected to the first welding part and the second welding part respectively; The first welding part comprises a lifting device and an upper electrode gripping rod, the lifting device is fixed to the machine body, a free end of the lifting device is connected to the first connecting part, and the other end of the first connecting part is connected to the upper electrode gripping rod; The second welding part includes a lower electrode holding rod, a connecting cylinder and a sensing device. The lower electrode holding rod is installed on the second connecting part. The end of the lower electrode holding rod away from the upper electrode holding rod is connected to the connecting cylinder. The push rod end of the connecting cylinder away from the lower electrode holding rod is connected to the sensing device.

2. The automotive parts inspection welding equipment according to claim 1, characterized in that: The driving device adopts an electric welding main machine.

3. The automotive parts inspection welding equipment according to claim 2, characterized in that: The first connecting part includes a flexible connecting copper busbar, an upper connecting seat and an upper mounting column. One output end of the welding host is electrically connected to the flexible connecting copper busbar, the other end of the flexible connecting copper busbar is fixedly connected to the upper connecting seat, the free end of the lifting device is fixedly connected to the upper connecting seat, an upper mounting column is fixedly installed inside the upper connecting seat, and the upper electrode grip is installed on the upper mounting column.

4. The automobile parts inspection welding equipment according to claim 3, characterized in that: The lifting device adopts a lifting cylinder.

5. The automobile parts inspection welding equipment according to claim 4, characterized in that: The second connecting part includes a hard-connected copper busbar, a lower connecting seat and a lower mounting column. The other output end of the welding host is electrically connected to the hard-connected copper busbar. The other end of the hard-connected copper busbar is fixedly connected to the lower connecting seat. A lower mounting column is fixedly installed inside the lower connecting seat, and the lower electrode grip is installed on the lower mounting column.

6. The automobile parts inspection welding equipment according to claim 5, characterized in that: An upper electrode seat is arranged at one end of the upper electrode holding rod close to the lower electrode holding rod.

7. The automobile parts inspection welding equipment according to claim 6, characterized in that: A lower electrode seat and an electrode cover are sequentially arranged at one end of the lower electrode gripping rod close to the upper electrode gripping rod, and a positioning pin is slidably connected inside the electrode cover.

8. The automobile parts inspection welding equipment according to claim 7, characterized in that: A push rod is arranged inside the lower electrode grip rod, the push rod is fixedly connected to the positioning pin, and the lower end of the push rod is fixedly connected to the upper push rod end of the connecting cylinder.

9. The automobile parts inspection welding equipment according to claim 8, characterized in that: The lower push rod end connected to the cylinder is plugged into the interior of the sensing device, and the sensing device adopts a displacement sensor.

10. The automobile parts inspection welding equipment according to claim 9, characterized in that: A limiting block is arranged between the push rod and the positioning pin.

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