CN107803578B

CN107803578B - Positioning device of electric welding machine

Info

Publication number: CN107803578B
Application number: CN201711111576.5A
Authority: CN
Inventors: 沈曦
Original assignee: Jiaxing Vocational and Technical College
Current assignee: Jiaxing Vocational and Technical College
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2023-06-23
Anticipated expiration: 2037-11-10
Also published as: CN107803578A

Abstract

The invention provides a positioning device of an electric welding machine, and belongs to the technical field of machinery. The electric welding machine comprises a machine shell and a heat-dissipating aluminum plate fixedly arranged in the machine shell along the horizontal direction, universal balls are fixedly connected to the periphery of the bottom surface of the machine shell, the positioning device comprises an upper pipe and a lower pipe which are vertically arranged in the machine shell, the upper end of the upper pipe is fixedly connected with the heat-dissipating aluminum plate, the upper end of the lower pipe is sleeved in the lower end of the upper pipe, the upper pipe is connected with the lower pipe through a threaded structure, the lower end of the lower pipe extends out of the machine shell, a plug for sealing the lower port of the lower pipe is fixedly connected to the lower end of the lower pipe, a plurality of air inlet filtering holes are formed in the side wall of the lower end of the lower pipe in a penetrating way, the cross section of the plug is in an inverted T shape, the plug consists of a rod part and a round head part, the rod part is inserted in the lower pipe and seals the lower port of the lower pipe, the head part is positioned outside the lower pipe, the head part is provided with a plurality of bolt mounting holes in a penetrating way along the vertical direction, and the bolt mounting holes are uniformly distributed along the circumferential direction of the head. The invention has the advantage of improving the positioning convenience of the electric welding machine.

Description

Positioning device of electric welding machine

Technical Field

The invention belongs to the technical field of machinery, and relates to an electric welding machine, in particular to a positioning device of the electric welding machine.

Background

The electric welder uses high-temperature arc generated by the instant short circuit of the positive and negative poles to melt the solder and the welded material on the welding rod, so as to combine the contacted materials. The electric welding machine can be generally divided into two types according to the types of output power sources, namely an alternating current power source and a direct current power source. The principle of inductance is utilized, the inductance can generate huge voltage change when being switched on and off, and the welding flux on the welding electrode is melted by utilizing high-voltage arc generated by the instant short circuit of the positive electrode and the negative electrode, so that the purpose of atomic combination is achieved.

The existing electric welding machine is generally directly fixed on the ground through bolts, and two problems exist in the mode: 1. because the installation position on the electric welding machine is fixed, when an uneven installation surface is encountered, other parts are needed to be used, so that the whole installation process is complicated; 2. the movement of the welding machine is laborious.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a positioning device of an electric welding machine, which solves the technical problem of improving positioning convenience.

The aim of the invention can be achieved by the following technical scheme: the utility model provides a positioner of electric welding, the electric welding includes the casing and sets firmly the heat dissipation aluminum plate in the casing along the horizontal direction, the bottom surface of casing all link firmly universal ball all around, its characterized in that, this positioner is including all vertical the setting up upper pipe and down pipe in the casing, the upper end and the heat dissipation aluminum plate of upper pipe link firmly mutually, the upper end cover of down pipe establish in the lower extreme of upper pipe, and upper pipe and down pipe link to each other through the helicitic texture, the lower extreme of down pipe stretch out the casing, the lower extreme of down pipe on link firmly the lower port confined end cap of this down pipe, a plurality of inlet air filtration holes have been seted up in the running through on the lower extreme lateral wall of down pipe, the cross-section of end cap be down T shape, and the end cap comprises pole portion and be circular head, pole portion insert in down pipe and seal down the lower port of down pipe, the head be located down outside the pipe, the head has run through along vertical direction and has seted up the bolt mounting hole, the bolt mounting hole has a plurality of and along the equipartition circumference of head.

When the electric welding machine is installed, the electric welding machine is fixed with the ground through bolts penetrating through the bolt installation holes, so that the working stability of the electric welding machine is ensured; when moving, the bolt is disassembled, and the universal ball is contacted with the ground, so that the electric welding machine can move easily.

The position of the lower pipe can be adjusted by rotating the lower pipe, so that the resistance applied in the moving process can be reduced, the moving easiness of the electric welding machine is improved, the positioning of the electric welding machine is applicable to different positions, the probability of other parts in the mounting process is effectively reduced, and the positioning convenience of the electric welding machine is improved.

In the positioning device of the electric welding machine, the heat-radiating aluminum plate is internally provided with the straight air passage, the air passage is arranged along the horizontal direction, two ends of the air passage are respectively an open end and a closed end, and the inner cavity of the upper pipe is communicated with the inner cavity of the closed end.

By adopting the design, the heat dissipation speed of the heat dissipation aluminum plate can be increased, so that the working stability of the electric welding machine is improved.

In the positioning device of the electric welding machine, the heat-radiating aluminum plate is internally provided with the air inlet hole which is in a straight strip shape and is arranged along the vertical direction, the upper end of the air inlet hole is communicated with the inner cavity of the closed end, the lower end of the air inlet hole is positioned on the bottom surface of the heat-radiating aluminum plate, the upper end surface of the upper pipe is provided with the connecting part which is in an annular convex shape, the connecting part and the upper pipe are coaxially arranged and are in an integrated structure, the connecting part is matched with the air inlet hole, and the connecting part is inserted into the air inlet hole.

By adopting the design, the convenience of connection of the heat dissipation aluminum plate and the air inlet pipe is effectively improved.

In the positioning device of the electric welding machine, the spring is sleeved outside the lower end of the lower pipe, and two ends of the spring are respectively abutted against the top surface of the head part and the bottom surface of the shell.

Under the action of the spring, the downward acting force is applied to the plug to improve the positioned stability of the electric welding machine, and partial vibration generated during the operation of the air extraction fan can be absorbed through self elastic deformation to improve the stability of cold air conveying and ensure the stable realization of the aim of improving the heat dissipation effect.

In the positioning device of the electric welding machine, the air inlet filter hole is an inclined hole, and the position of one end of the inner surface of the lower pipe is higher than that of one end of the outer surface of the lower pipe.

By adopting the design, the difficulty of dust entering through the air inlet filter holes is further increased.

In the positioning device of the electric welding machine, the bottom surface of the head is provided with the anti-skid texture.

Compared with the prior art, the positioning device of the electric welding machine has the following advantages:

1. the position of the lower pipe can be adjusted by rotating the lower pipe, so that the resistance applied in the moving process can be reduced, the moving easiness of the electric welding machine is improved, the positioning of the electric welding machine is applicable to different positions, the probability of other parts in the mounting process is effectively reduced, and the positioning convenience of the electric welding machine is improved.

2. Under the action of the spring, the downward acting force is applied to the plug to improve the positioned stability of the electric welding machine, and partial vibration generated during the operation of the air extraction fan can be absorbed through self elastic deformation to improve the stability of cold air conveying and ensure the stable realization of the aim of improving the heat dissipation effect.

Drawings

Fig. 1 is a schematic structural view of the welding machine.

Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.

Fig. 3 is an enlarged schematic view of the structure at B in fig. 1.

Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.

Fig. 5 is a schematic view of a mounting structure of a heat dissipation fan.

Fig. 6 is a schematic view of the mounting structure of the circuit board and the heat dissipating aluminum plate.

Fig. 7 is an enlarged schematic view of the structure at D in fig. 6.

In the figure, 1, a shell; 1a, an air inlet; 1b, a dovetail groove; 1c, an exhaust port; 1d, guard plates; 2. a circuit board; 3. a heat radiation fan; 3a, a shell; 4. a heat-dissipating aluminum plate; 4a, a positioning part; 4b, airways; 5. an air extraction fan; 6. an air inlet pipe; 6a, upper tube; 6a1, a connection part; 6b, lower pipe; 6b1, an air inlet filter hole; 7. a clamping plate; 8. installing a pipe; 8a, a mounting part; 9. a dust cover; 9a, exhaust micropores; 10. a universal ball; 11. a screw; 12. a support tube; 13. a screw; 14. dovetail blocks; 15. a limit column; 16. a plug; 16a, bolt mounting holes; 17. a protective tube; 18. a 0-shaped ring; 19. and (3) a spring.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the electric welding machine is composed of a casing 1, a circuit board 2, a heat radiation fan 3, a heat radiation aluminum plate 4, an air extraction fan 5, an air inlet pipe 6, a clamping plate 7, a mounting tube 8, a dust cover 9 and the like. Wherein the mounting tube 8 is made of a heat conductive material, which may be aluminum or brass.

Specifically, the casing 1 is cuboid and has a cavity therein, and universal balls 10 are fixedly connected to the periphery of the bottom surface of the casing 1, so as to facilitate movement of the welding machine. Preferably, the universal ball 10 and the casing 1 are fixedly connected by welding.

The circuit board 2 is arranged in the shell 1 along the horizontal direction, electronic components are integrated on the top surface of the circuit board 2, and a heat dissipation aluminum plate 4 is attached to the bottom surface of the circuit board 2, so that the heat dissipation efficiency of the circuit board 2 is improved. At this time, the heat radiation aluminum plate 4 is also disposed in the horizontal direction.

The circuit board 2 and the heat dissipation aluminum plate 4 are installed as follows:

the periphery of the bottom surface of the heat dissipation aluminum plate 4 is provided with positioning parts 4a which are tubular bulges, namely, the number of the positioning parts 4a is four. Preferably, the positioning portion 4a and the heat dissipating aluminum plate 4 are formed by one-step processing using the same material. The mounting tube 8 is vertically disposed in the cabinet 1 and directly below the heat radiation aluminum plate 4. Four mounting tubes 8 are arranged and are opposite to the four positioning parts 4a respectively. The upper ends of the four mounting tubes 8 are respectively sleeved outside the four positioning parts 4a, and the mounting tubes 8 and the positioning parts 4a are fixedly connected in a tight fit manner; the bottom of the shell 1 is provided with yielding holes in a penetrating way, and the yielding holes are four and are opposite to the four mounting pipes 8 respectively. The lower ends of the four mounting tubes 8 penetrate through the corresponding yielding holes and extend out of the machine shell 1, and the mounting tubes 8 and the machine shell 1 are preferably fixedly connected in a tight fit mode. Further, the top surface of the mounting tube 8 is abutted against the bottom surface of the heat-dissipating aluminum plate 4, and the top surface of the mounting tube 8 is provided with an anti-slip texture (not shown).

The circuit board 2 is all around along vertical direction and runs through and has seted up the locating hole, has on the upper end outer wall of every installation tube 8 and is cubic convex installation department 8a, and installation department 8a and installation tube 8 are integrated into one piece structure. Each mounting portion 8a is provided with a screw hole penetrating therethrough in the vertical direction, and four screw holes are respectively connected with four positioning holes Xiang Zhengdui. Screws 11 are arranged in each positioning hole in a penetrating way, the heads of the screws 11 are propped against the top surface of the circuit board 2, and the rod parts of the screws 11 are screwed into the corresponding screw holes so as to stably position the circuit board 2. Further, the supporting tube 12 is sleeved outside the rod portion of each screw 11, the supporting tube 12 is fixedly connected with the corresponding mounting portion 8a, two end faces of the supporting tube 12 are respectively abutted against the bottom face of the circuit board 2 and the top face of the mounting portion 8a, and a good supporting effect is achieved on the circuit board 2, so that the service life and the working stability of the circuit board are improved.

As shown in fig. 1, a dust cover 9 is sleeved outside the lower end of each mounting tube 8, and the dust cover 9 is fixedly connected with the mounting tube 8 through a thread structure. The dust cover 9 is provided with exhaust micropores 9a which enable the inner cavity of the installation tube 8 to be communicated with the outside, each dust cover 9 is provided with a plurality of exhaust micropores 9a, and each exhaust micropore 9a is in a straight hole shape and is arranged along the vertical direction. In this embodiment, the pore diameter of the exhaust micropores 9a is 0.3mm to 1mm, and this pore diameter is preferably 0.5mm.

One side of the circuit board 2 is provided with two heat dissipation fans 3 which are opposite to the circuit board 2, and the two heat dissipation fans 3 are preferably arranged in the shell 1. At this time, the two heat radiation fans 3 are distributed along the width direction of the casing 1. The two heat dissipation fans 3 are installed as follows:

each heat radiation fan 3 includes a cylindrical casing 3a, and the axial extending direction of the casing 3a coincides with the longitudinal extending direction of the casing 1. The two ports of the shell 3a are respectively an air inlet and an air outlet, and the two air outlets are opposite to the circuit board 2. One end face of the two shells 3a is propped against the inner side wall of the shell 1, two air inlets 1a are formed in the side wall of the shell 1 in a penetrating mode, and the two air inlets 1a are opposite to the two air inlets respectively. The upper side and the lower side of the housing 3a are each horizontally provided with a clamping plate 7, and the clamping plate 7 is long plate-shaped and is provided along the width direction of the casing 1. The clamping plate 7 positioned on the upper side of the heat radiation fan 3 is slidably connected with the casing 1, so that the clamping plate 7 can slide along the vertical direction, the clamping plate 7 positioned on the lower side of the heat radiation fan 3 is fixedly connected with the casing 1, the top surface and the bottom surface of the two shells 3a are respectively tightly abutted against the two clamping plates 7, the two clamping plates 7 are respectively provided with threaded holes in a penetrating manner along the vertical direction, the two threaded holes are positioned between the two shells 3a, and the two threaded holes are in threaded connection with the same screw 13, so that the two heat radiation fans 3 are positioned simultaneously.

The clamping plate 7 and the casing 1 are slidably connected as follows: the inner side wall of the casing 1 is provided with a strip-shaped dovetail groove 1b, and the dovetail groove 1b is arranged along the vertical direction and is positioned between the two shells 3 a. Dovetail blocks 14 which are matched with the dovetail grooves 1b are arranged in the dovetail grooves 1b, and the dovetail blocks 14 are fixedly connected with clamping plates 7 positioned on the upper sides of the heat dissipation fans 3. Preferably, the dovetail block 14 and the clamping plate 7 are fixedly connected by welding. Further, jacks are formed in the top surface and the bottom surface of the shell 3a, two limiting columns 15 matched with the jacks are fixed on the two clamping plates 7, and the four limiting columns 15 are respectively inserted into the four jacks, so that the positioning stability of the heat dissipation fan 3 is enhanced.

As shown in fig. 1, the heat dissipation aluminum plate 4 has a straight air passage 4b therein, and the length extension directions of the air passage 4b and the casing 1 are identical. The two ends of the air passage 4b are respectively an open end and a closed end, and the closed end is positioned between the heat dissipation fan 3 and the open end so as to prevent the air exhausted by the heat dissipation fan 3 from entering the air passage 4 b. An air inlet pipe 6 is vertically and fixedly arranged in the shell 1, the air inlet pipe 6 is positioned under the heat radiation aluminum plate 4, the upper end of the air inlet pipe 6 is communicated with the air passage 4b, the lower end of the air inlet pipe 6 extends out of the shell 1, and an air exhaust fan 5 is fixedly arranged in the lower end of the air inlet pipe 6.

The communication manner of the air inlet pipe 6 and the air passage 4b is as follows: the heat radiation aluminum plate 4 is internally provided with an air inlet which is in a straight strip shape and is arranged along the vertical direction, the upper end of the air inlet is communicated with the inner cavity of the closed end, and the lower end of the air inlet is positioned on the bottom surface of the heat radiation aluminum plate 4. The upper end face of the air inlet pipe 6 is provided with a connecting part 6a1 which is in an annular bulge, the connecting part 6a1 and the air inlet pipe 6 are coaxially arranged and are of an integrated structure, the shape and the size of the connecting part 6a1 are matched with those of the air inlet hole, and the connecting part 6a1 is inserted into the air inlet hole.

The suction fan 5 is mounted as follows: the lower extreme of intake pipe 6 is annular step, and annular step comprises annular lateral wall and annular step face, and air extraction fan 5 is located annular step, and air extraction fan 5 links firmly with annular step face through the screw.

As shown in fig. 1, a plug 16 for closing the lower port of the air inlet pipe 6 is fixedly connected to the air inlet pipe 6, a plurality of air inlet filter holes 6b1 are formed in the side wall of the lower end of the air inlet pipe 6 in a penetrating manner, and all the air inlet filter holes 6b1 are located below the air extraction fan 5. At this time, the external cool air enters the inside of the intake duct 6 through the intake filtering holes 6b 1. Further, the lower end of the air inlet pipe 6 is sleeved with a protecting pipe 17, the upper end of the protecting pipe 17 is fixedly connected with the casing 1, the inner diameter of the protecting pipe 17 is larger than the outer diameter of the air inlet pipe 6, and all air inlet filtering holes 6b1 are positioned in the protecting pipe 17.

Further, the cross section of the stopper 16 is inverted T-shaped, and the stopper 16 is composed of a stem portion and a head portion having a circular shape. The stem is inserted in the air inlet pipe 6 and seals the lower port of the air inlet pipe 6, the head is positioned outside the air inlet pipe 6, bolt mounting holes 16a are formed in the head in a penetrating manner in the vertical direction, and a plurality of bolt mounting holes 16a are uniformly distributed along the circumferential direction of the head. The bottom surface of the head part is provided with an anti-skid texture.

As shown in fig. 1, the intake pipe 6 includes an upper pipe 6a and a lower pipe 6b, and the upper pipe 6a and the lower pipe 6b are each straight-pipe-shaped and are each disposed in the vertical direction. The connecting part 6a1 and the annular step are respectively positioned on the upper pipe 6a and the lower pipe 6b, the upper end of the lower pipe 6b is sleeved on the lower end of the upper pipe 6a, and the lower pipe 6b and the upper pipe 6a are fixedly connected through a thread structure. Further, an annular groove coaxial with the upper tube 6a is formed in the outer side wall of the upper tube 6a, a 0-shaped ring 18 is arranged in the annular groove, and the outer peripheral surface of the 0-shaped ring 18 abuts against the inner side wall of the lower tube 6b so as to enhance the tightness of connection between the upper tube 6a and the lower tube 6 b. The lower end of the lower pipe 6b is sleeved with a spring 19, two ends of the spring 19 are respectively propped against the top surface of the head and the bottom surface of the shell 1, and the upper end of the spring 19 is positioned in the protective pipe 17. In this embodiment, the air inlet filter hole 6b1 is located on the lower tube 6b, the air inlet filter hole 6b1 is an inclined hole, and the position of the air inlet filter hole 6b1 at one end of the inner surface of the lower tube 6b is higher than the position of the air inlet filter hole 6b1 at one end of the outer surface of the lower tube 6 b.

As shown in fig. 1, an exhaust port 1c opposite to the opening end is formed in the side wall of the casing 1 in a penetrating manner; the outer side wall of the casing 1 is provided with a guard plate 1d, and the guard plate 1d and the casing 1 are of an integrated structure. The guard plate 1d is long plate-shaped, the length of the guard plate 1d extends along the width direction of the casing 1, the guard plate 1d is obliquely arranged downwards, and the exhaust port 1c is opposite to the guard plate 1d, so that the difficulty that impurities such as dust enter the casing 1 through the exhaust port 1c is increased.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a positioner of electric welding, the electric welding includes casing and the heat dissipation aluminum plate who sets firmly in the casing along the horizontal direction, the bottom surface of casing all link firmly universal ball all around, its characterized in that, this positioner includes all vertical upper pipe and the down tube that sets firmly in the casing, the upper end of upper pipe links firmly with heat dissipation aluminum plate, the upper end cover of down tube is established in the lower extreme of upper pipe, and upper pipe and down tube link to each other through the helicitic texture, the lower extreme of down tube stretch out the casing, the lower extreme of down tube on link firmly with the end cap that seals the lower port of this down tube, the lower extreme lateral wall of down tube has run through and has seted up a plurality of inlet filter holes, the cross-section of end cap is the shape of falling T, and the end cap comprises pole portion and circular head, pole portion insert in down tube and seal down port of down tube, the head be located down tube outward, the head has seted up bolt mounting hole along vertical direction run through, bolt mounting hole have a plurality and along the circumference of head equipartition; the electric welding machine further comprises two heat dissipation fans, each heat dissipation fan comprises a cylindrical shell, and the axis extending direction of the shell is consistent with the length extending direction of the shell; the two ports of the shell are respectively an air inlet and an air outlet, and the two air outlets are opposite to the circuit board; one end face of the two shells is propped against the inner side wall of the shell, two air inlets are formed in the side wall of the shell in a penetrating way, and the two air inlets are opposite to the two air inlets respectively; clamping plates are horizontally arranged on the upper side and the lower side of the shell, are long-plate-shaped and are arranged along the width direction of the shell; the clamping plates positioned on the upper sides of the heat dissipation fans are in sliding connection with the machine shell, so that the clamping plates can slide along the vertical direction, the clamping plates positioned on the lower sides of the heat dissipation fans are fixedly connected with the machine shell, the top surfaces and the bottom surfaces of the two shells are respectively tightly abutted against the two clamping plates, the two clamping plates are respectively provided with threaded holes in a penetrating manner along the vertical direction, the two threaded holes are positioned between the two shells, and the two threaded holes are internally and spirally connected with the same screw rod, so that the two heat dissipation fans are positioned at the same time;

the clamping plate and the shell are in sliding connection in the following manner: the inner side wall of the shell is provided with a strip-shaped dovetail groove which is arranged along the vertical direction and is positioned between the two shells; dovetail blocks which are matched with the dovetail grooves are arranged in the dovetail grooves, and the dovetail blocks are fixedly connected with clamping plates positioned on the upper sides of the heat dissipation fans; the dovetail block is fixedly connected with the clamping plate in a welding mode; the top surface and the bottom surface of the shell are respectively provided with an inserting hole, two limiting columns matched with the inserting holes are respectively fixed on the two clamping plates, and the four limiting columns are respectively inserted into the four inserting holes, so that the positioning stability of the heat dissipation fan is enhanced; the heat dissipation aluminum plate in have and be straight banding air flue, and the air flue sets up along the horizontal direction, the both ends of air flue be open end and blind end respectively, and the inner chamber of upper tube is linked together with the inner chamber of blind end.

2. The positioning device of the electric welding machine according to claim 1, wherein the heat radiation aluminum plate is internally provided with an air inlet hole which is in a straight strip shape and is arranged along the vertical direction, the upper end of the air inlet hole is communicated with the inner cavity of the closed end, the lower end of the air inlet hole is positioned on the bottom surface of the heat radiation aluminum plate, the upper end surface of the upper pipe is provided with a connecting part which is in an annular convex shape, the connecting part and the upper pipe are coaxially arranged and are in an integrated structure, the connecting part is matched with the air inlet hole, and the connecting part is inserted into the air inlet hole.

3. The positioning device of the welding machine according to claim 1, wherein a spring is sleeved outside the lower end of the lower pipe, and two ends of the spring are respectively abutted against the top surface of the head part and the bottom surface of the casing.

4. The positioning device of the welding machine according to claim 1, wherein the air inlet filtering holes are inclined holes, and the positions of one ends of the inner surfaces of the lower pipes are higher than the positions of one ends of the outer surfaces of the lower pipes.

5. The welding machine positioning device as defined in claim 1, wherein the bottom surface of the head portion is provided with anti-slip textures.