Flexible stud welding tool

Abstract

The utility model provides a flexible stud welding tool, and provides the following scheme aiming at the problems that after an existing stud welding tool carries out welding operation, a layer of black oxide is formed on a welding point and a surrounding area due to oxidation reaction, the black oxide easily becomes a way for corrosive media to invade, and the follow-up machining operation difficulty is increased. The welding device comprises a fixing frame, a linear mechanism is fixedly installed on one side of the top of the fixing frame, a welding mechanism is arranged on a sliding piece of the linear mechanism, and the linear mechanism is used for driving the welding mechanism to move linearly. A welding mechanism and an external connecting plate are driven by a linear mechanism to move towards one side close to a base material, an exhaust passage and an air inlet passage are overlapped by a notch cover through cooperation of a sliding long plate, a guide plate and a reset spring, inert gas in an air pipe enters an annular pipe and is sprayed out through a plurality of nozzles, and a local protective air mass is formed around a welding point; and the oxidation reaction of the welding point and the surrounding area of the base material at high temperature is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding equipment technical field especially relates to a flexible stud welding frock. BACKGROUND

[0002] Stud welding frock is a kind of equipment or tool specially designed for stud welding, and stud welding is a process of fixing studs to metal plates or other substrates, usually using electric arc, energy storage or friction to generate enough heat to melt the end of the stud and a part of the substrate surface, so as to form a firm metallurgical bond after cooling.

[0003] After the existing stud welding frock carries out welding operation, the welding point and the surrounding area on the substrate will form a layer of black oxide due to oxidation reaction under high temperature, the oxide layer is not as dense as the substrate itself, is easy to become the way of corrosion medium invasion, and will make subsequent machining operation difficult, therefore we propose a kind of flexible stud welding frock to solve this problem. SUMMARY

[0004] The utility model aims at solving the problems in the background art, and provides a kind of flexible stud welding frock.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of flexible stud welding frock, including fixed frame, the top side of the fixed frame is fixedly installed with linear mechanism, the sliding member of the linear mechanism is provided with welding mechanism, the linear mechanism is used to drive welding mechanism to carry out linear movement, the welding mechanism includes stud feeding cylinder, the outer side of the stud feeding cylinder is fixedly installed with external connection plate, the external connection plate is horizontally slidably installed with sliding long plate, the one side of the sliding long plate is fixedly installed with notch cover, the inner wall of the notch cover is fixedly connected with annular tube, the outer side of the annular tube is communicated with multiple spray heads.

[0007] In a preferred embodiment, the welding mechanism further includes a support plate, the support plate is fixedly installed with a welding head, the stud feeding cylinder is provided with a slide type feeder, one end of the stud feeding cylinder is provided with a discharge pipe.

[0008] In a preferred embodiment, the external connection plate is fixedly installed with a gas pipe, the gas pipe is fixedly connected with a ring plate on one side, the ring plate is slidably and sealingly connected with the outer side of the notch cover, the ring plate is provided with an exhaust passage, the exhaust passage is communicated with the gas pipe, the outer side of the notch cover is provided with an air inlet, and the air inlet is communicated with the annular tube.

[0009] In a preferred implementation form, one side of the sliding long plate is fixedly provided with a side plate, one side of the side plate is fixedly provided with a guide plate, one side of the external connecting plate is provided with a guide groove, the guide plate is slidingly arranged in the guide groove, and the same reset spring is fixedly connected between the guide plate and the inner wall of one side of the guide groove.

[0010] In a preferred implementation form, the outer side of the nail feeding cylinder is fixedly provided with a pump machine, the output end of the pump machine is communicated with the air pipe, and the pump machine is used for continuously guiding inert gas into the air pipe.

[0011] In a preferred implementation form, one side of the notch cover is fixedly connected with a rubber ring, and one side of the notch cover is provided in an open manner.

[0012] The utility model discloses the beneficial effects are:

[0013] The welding mechanism and the external connecting plate are driven to move to the side close to the base material through the linear mechanism, so that the notch cover and the air pipe are driven to move to the side close to the base material, the notch cover is limited and moves relative to the air pipe through the cooperation of the sliding long plate, the guide plate and the reset spring, the exhaust passage and the air inlet passage are overlapped, the inert gas in the air pipe enters the annular pipe and is sprayed through the plurality of nozzles, a local protection gas group is formed around the welding point, and the welding point and the surrounding area of the base material are prevented from being oxidized under high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structure schematic view of the flexible stud welding tool is provided in the utility model;

[0015] Figure 2 A Figure 1 A partial enlarged view of part A;

[0016] Figure 3 A three-dimensional structure schematic view of the notch cover of the flexible stud welding tool is provided in the utility model;

[0017] Figure 4 A sectional structure schematic view of the notch cover of the flexible stud welding tool is provided in the utility model.

[0018] The signs are as follows:

[0019] In the drawing: 1, fixed frame; 2, linear mechanism; 3, nail feeding cylinder; 4, external connecting plate; 5, sliding long plate; 6, notch cover; 7, annular pipe; 8, nozzle; 9, welding head; 10, discharge pipe; 11, air pipe; 12, ring plate; 13, exhaust passage; 14, air inlet passage; 15, guide plate; 16, reset spring; 17, pump machine; 18, rubber ring. DETAILED DESCRIPTION

[0020] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0021] Referring to Figures 1-4 A flexible stud welding tool, including fixed frame 1, the top side of fixed frame 1 is fixedly installed linear mechanism 2, the sliding member of linear mechanism 2 is provided with welding mechanism, linear mechanism 2 is used to drive welding mechanism to carry out linear movement, the driving source of linear mechanism 2 is pneumatic cylinder, quick response ensures processing efficiency, welding mechanism includes nail feeding barrel 3, the outer side of nail feeding barrel 3 is fixedly installed with external plate 4, external plate 4 is horizontally slidably installed with sliding long plate 5, the one side of sliding long plate 5 is fixedly installed with notch cover 6, the inner wall of notch cover 6 is fixedly connected with annular tube 7, a plurality of spray heads 8 are communicated on the outer side of annular tube 7, inert gas enters annular tube 7 through gas pipe 11, and then is sprayed out through a plurality of spray heads 8, and inert gas forms a local protection gas group around the welding point.

[0022] As Figure 3 Shown, welding mechanism also includes supporting plate, supporting plate is fixedly installed with welding head 9, slide type feeder is arranged in nail feeding barrel 3, and discharge pipe 10 is arranged at one end of nail feeding barrel 3.

[0023] It should be noted that the stud welding tool is a highly integrated device, in addition to the two main functional structures of nail feeding barrel 3 and welding head 9, it also includes power supply and control system, etc., the power supply is used to power nail feeding barrel 3 and welding head 9, and the control system is used to control the whole welding process;Slide type feeder sends stud along the slide to discharge pipe 10 by mechanical pushing mode, and the connecting head part of stud is stretched out to discharge pipe 10, so as to facilitate welding by welding gun.

[0024] As Figure 4 Shown, external plate 4 is fixedly installed with gas pipe 11, one side of gas pipe 11 is fixedly connected with ring plate 12, ring plate 12 is slidably and sealingly connected with the outer side of notch cover 6, exhaust passage 13 is formed in ring plate 12, exhaust passage 13 is communicated with gas pipe 11, inlet passage 14 is formed in the outer side of notch cover 6, inlet passage 14 is communicated with annular tube 7, gas pipe 11 controls its opening and closing by relative position control of ring plate 12 and notch cover 6, when inlet passage 14 and exhaust passage 13 are simultaneously positioned, gas pipe 11 is communicated with annular tube 7, when inlet passage 14 and exhaust passage 13 are out of position, exhaust passage 13 is blocked by the outer wall of notch cover 6.

[0025] As Figure 4As shown, one side of the sliding long plate 5 is fixedly installed with a side plate, one side of the side plate is fixedly installed with a guide plate 15, one side of the outer connecting plate 4 is provided with a guide groove, the guide plate 15 is slidingly installed in the guide groove, and the same reset spring 16 is fixedly connected between the guide plate 15 and the inner wall of one side of the guide groove, and the reset spring 16 and the guide plate 15 cooperate to limit the sliding long plate 5 and the notch cover 6.

[0026] As shown in Figure 2 and Figure 4 As shown, the outer side of the nail feeding cylinder 3 is fixedly installed with a pump 17, the output end of the pump 17 is communicated with the air pipe 11, the pump 17 is used for continuously guiding inert gas into the air pipe 11, the input end of the pump 17 is connected with a container containing inert gas, the inert gas is set as argon, the density of which is large, and the inert gas can better cover the welding area and prevent oxygen in the air from entering.

[0027] As shown in Figure 2 and Figure 3 As shown, one side of the notch cover 6 is fixedly connected with a rubber ring 18, one side of the notch cover 6 is provided as an opening, and the rubber ring 18 is arranged at the contact point of the notch cover 6 and the plate material to play a protection role.

[0028] It is additionally explained that in the conventional processing and production link, it is common to treat the oxidation and blackening of the stud welding point, not only for the purpose of aesthetics, but also to ensure the corrosion resistance and mechanical properties of the welding part, and the treatment methods include mechanical cleaning and chemical cleaning, which need to be carried out in several steps, thereby increasing the processing link and time.

[0029] The working principle of the utility model is as follows: in the processing production line, the base material is usually grabbed by a mechanical hand and adjusted to a proper angle and then sent to the front of the stud welding tool, the linear mechanism 2 drives the supporting plate to move to the side close to the base material, thereby driving the nail feeding cylinder 3, the outer connecting plate 4 and the notch cover 6 to move to the side close to the base material, the notch cover 6 first abuts against the base material and remains stationary, the nail feeding cylinder 3 continues to drive the outer connecting plate 4 and the air pipe 11 to move close to the base material and continuously compresses the reset spring 16, until the stud in the discharge pipe 10 of the nail feeding cylinder 3 abuts against the base material, at this time, the exhaust channel 13 on the ring plate 12 and the air inlet channel 14 on the notch cover 6 are coincided, the inert gas enters the annular pipe 7, and then is sprayed out through the plurality of nozzles 8, the inert gas moves downward to form a local protective atmosphere around the welding point, the welding gun is started to weld the stud, after the operation is completed, the linear mechanism 2 drives the welding mechanism to reset, the notch cover 6 is reset under the action of the reset spring 16, so that the exhaust channel 13 and the air inlet channel 14 are misaligned to close the air pipe 11.

[0030] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A flexible stud welding tool, characterized by, Including the fixed frame (1), the top side of the fixed frame (1) is fixedly installed with linear mechanism (2), the sliding piece of linear mechanism (2) is provided with welding mechanism, linear mechanism (2) is used for driving welding mechanism to move linearly, welding mechanism includes the nail feeding cylinder (3), the outer side of the nail feeding cylinder (3) is fixedly installed with the outer connecting plate (4), the outer connecting plate (4) is horizontally slidably installed with the sliding long plate (5), one side of the sliding long plate (5) is fixedly installed with the notch cover (6), the inner wall of the notch cover (6) is fixedly connected with the annular pipe (7), the outer side of the annular pipe (7) is communicated with a plurality of spray heads (8).

2. A flexible stud welding fixture as claimed in claim 1, wherein, The welding mechanism further comprises a supporting plate, the supporting plate is fixedly installed with a welding head (9), the nail feeding cylinder (3) is provided with a slide type feeder, one end of the nail feeding cylinder (3) is provided with a discharge pipe (10).

3. A flexible stud welding fixture as claimed in claim 1, wherein, The outer connecting plate (4) is fixedly installed with the air pipe (11), one side of the air pipe (11) is fixedly connected with the ring plate (12), the ring plate (12) is slidably and sealingly connected with the outer side of the notch cover (6), the ring plate (12) is provided with an exhaust channel (13) therein, the exhaust channel (13) is communicated with the air pipe (11), the outer side of the notch cover (6) is provided with an air inlet channel (14), the air inlet channel (14) is communicated with the annular pipe (7).

4. The flexible stud welding fixture of claim 1, wherein, One side of the sliding long plate (5) is fixedly installed with a side plate, one side of the side plate is fixedly installed with a guide plate (15), one side of the outer connecting plate (4) is provided with a guide groove, the guide plate (15) is slidably installed in the guide groove, the guide plate (15) and the inner wall of one side of the guide groove are fixedly connected with the same return spring (16).

5. The flexible stud welding fixture of claim 1, wherein, The outer side of the nail feeding cylinder (3) is fixedly installed with a pump (17), the output end of the pump (17) is communicated with the air pipe (11), the pump (17) is used for continuously introducing inert gas into the air pipe (11).

6. A flexible stud welding fixture as defined in claim 1, wherein, One side of the notch cover (6) is fixedly connected with a rubber ring (18), one side of the notch cover (6) is provided with an opening.

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