CN113427112A

CN113427112A - High-frequency welding machine

Info

Publication number: CN113427112A
Application number: CN202110621993.4A
Authority: CN
Inventors: 朱仙富; 陈璐
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-09-24

Abstract

The invention relates to the technical field of high-frequency welding, in particular to a high-frequency welding machine which comprises a workbench, wherein two clamping plates are symmetrically and movably arranged on a movable plate, a distance adjusting mechanism is arranged between the two clamping plates and the movable plate, a multi-size pressing and clamping device is arranged between the movable plate and the workbench, and an automatic cooling and water storage mechanism is arranged between the workbench and the movable plate. According to the invention, the two connecting rods are far away from each other through the pressing action of the two driving rods, and the four clamping rods are driven to clamp the blank, so that the blank is more stable during welding, and the positioning is more accurate, thereby improving the welding precision and quality; the welded blank is subjected to water spray cooling by arranging the cooling pipe, other moving measures are not needed, the cooling efficiency is improved, quick cooling is realized for some special material blanks, the welding quality is further improved, and other driving devices are not added.

Description

High-frequency welding machine

Technical Field

The invention relates to the technical field of high-frequency welding, in particular to a high-frequency welding machine.

Background

High frequency welding uses solid resistance heat as energy. During welding, the surface layer of the welding zone of the workpiece is heated to a molten or approximate plastic state by using resistance heat generated in the workpiece by high-frequency current, and then upsetting force is applied (or not applied) to realize metal bonding. It is therefore a solid phase resistance welding method.

In the conventional patent (publication number: CN111843158A), a high-frequency welding machine realizes uniform heating welding of blanks by matching a workbench, a welding box, a transmission unit and a heating unit, and enhances the uniformity of the distribution of welding seams on the surfaces of the blanks, thereby enhancing the welding precision of the blanks and ensuring the subsequent manufacturing and processing effects of the blanks; strengthen the fixed action to the blank through the cooperation of strengthening platform, No. two cylinders and annular base to strengthen the fixed to the blank position, further guaranteed in the heat-welding process to the blank, the position precision of blank, thereby strengthen the heat-welding effect to the blank.

The above invention has the following problems in practice:

1. the bottom annular base is used for placing the blank, although the blank can be roughly positioned, the blank cannot be accurately fixed, and the blank can be fixed only by means of external force driving of a second air cylinder, so that the production cost is increased; secondly, the annular base is only suitable for blanks with one size, and the flexibility is low.

2. The local temperature of the blank after welding can be very high, for austenitic steel, the blank can not be slowly cooled after welding, even can be rapidly cooled, otherwise, the blank is in a sensitization temperature for a long time, so that the intergranular corrosion tendency is easy to generate, the blank needs to be rapidly cooled after the high-frequency welding is completed, the blank generally needs to be manually carried or mechanically conveyed into cooling water for cooling, the transportation cost is increased, and meanwhile, the cooling efficiency is also reduced.

To this end, a high-frequency welding machine is proposed.

Disclosure of Invention

The invention aims to provide a high-frequency welding machine, which is characterized in that two scissors-like clamps are arranged on a workbench to clamp a blank, so that the stability of the blank during welding is improved; and an automatic cooling water storage device is arranged on the workbench, so that the welded blank can be rapidly cooled, and the problem that a workpiece made of a special material needs to be rapidly cooled is solved.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a high-frequency welding machine, includes the workstation, fixed mounting has the mount on the workstation, movable mounting has the fly leaf on the inside wall of mount, fixed mounting has the cylinder on the outer roof of mount, symmetry movable mounting has two splint on the fly leaf, and two splint all are "L" type, two splint press from both sides jointly and are equipped with the welding ware, two install interval adjustment mechanism between splint and the fly leaf, the stock has been placed on the workstation roof, install many sizes between fly leaf and the workstation and press clamping device, install automatic cooling retaining mechanism between workstation and the fly leaf.

The welding device is clamped by adjusting the distance between the two clamping plates, so that the welding device is convenient to disassemble and assemble and is convenient to maintain; the blank is positioned and reinforced by arranging the clamping device on the workbench, so that the welding precision is improved; the blank is rapidly cooled through the cooling mechanism, and the welding quality and precision of the special material are improved.

Preferably, the multi-size pressing and clamping device comprises two fixed rods symmetrically arranged on a workbench, two rotating rings are symmetrically and fixedly arranged on the two fixed rods, two clamping rods are symmetrically and fixedly arranged on each rotating ring, two reset plates are symmetrically and movably arranged on the workbench, a connecting ring is fixedly arranged on the outer wall of one side close to the two reset plates, a wedge block is fixedly arranged on the inner wall of one side close to the two reset plates, two driving rods are symmetrically and fixedly arranged on the movable plate, jacks matched with the two driving rods are formed in the workbench, adjusting springs are fixedly arranged on the outer wall of one side close to the two connecting rings, a connecting plate is fixedly arranged at one end close to the two adjusting springs, a connecting rod is fixedly arranged on the outer wall of one side close to the two connecting plates, and two sliding rods are respectively rotatably arranged at two ends of the connecting rod, and one ends of the two sliding rods, which are far away from the connecting rod, are slidably mounted with the two clamping rods.

Through two actuating levers of fly leaf decline, two wedge blocks are pressed on the way to descend, make two wedge blocks keep away from mutually, thereby two adjusting spring of pulling and connecting plate, two connecting rods of pulling keep away from mutually, when the connecting rod keeps away from each other, two slide bars can be pulled and slide on corresponding clamping bar, drive splint angle of regulation simultaneously, contained angle between two clamping bars near the stock reduces gradually, until pressing from both sides the stock tightly, this clamping mode is similar to the scissors, owing to set up adjusting spring additional, make the size range that can press from both sides tight bigger, thereby improve the flexibility of centre gripping, the stability of stock when the welding has been improved, make the more accuracy in stock welded position simultaneously, welded quality and precision have further been improved.

Preferably, two equal fixed mounting has first slide bar on the board diapire that resets, the first spout with two first slide bar matched with is seted up to the symmetry on the workstation, two equal fixed mounting has reset spring, two on the first slide bar outer wall in opposite directions one side reset spring keeps away from the equal fixed mounting of first slide bar one end on the inner wall of first spout.

Through setting up first slide bar and the first spout of mutually supporting, make two reset plates more stable when removing, the skew is difficult for appearing, reset spring of installation can help two reset plates to reset simultaneously on the first slide bar, thereby parts such as help go-between reset, realize when the actuating lever separates from with the wedge mutually, each part obtains resetting, thereby realize that the clamping bar leaves the stock, remove tight effect, can loosen automatically when realizing clamping bar self-holding, thereby further improved the location and the clamping action to the stock, welded quality and precision have further been improved.

Preferably, the automatically cooling retaining mechanism includes the cooling tube of fixed mounting on the workstation, fixed mounting has the piston rod with cooling tube matched with on the fly leaf diapire, the water tank has been placed to the workstation below, fixed mounting has the gooseneck on the roof that the cooling tube is close to stock one side, the cooling tube top wall mounting has the pipe that absorbs water, the pipe that absorbs water is kept away from the outer wall that cooling tube one end runs through the workstation and is extended to in the water tank, the mouth of a river has been seted up down on the workstation, be equipped with the filter screen down on the mouth of a river.

The water suction pipe and the gooseneck are respectively provided with a one-way valve, the end part of the gooseneck is provided with a nozzle, when the movable plate descends, the piston rod descends, the space of the upper half part of the cooling pipe is increased, the internal air pressure is reduced, water in the water tank can flow into the cooling pipe through the water suction pipe, after welding is completed, the movable plate begins to ascend, the piston rod is driven to ascend, the space of the upper half part of the cooling pipe is extruded, the water is extruded from the gooseneck, the blank is sprinkled, rapid cooling is carried out on the blank, part of the water is evaporated, the other part of the water flows into the water outlet through the action of gravity, the water returns to the water tank below, automatic sprinkling and cooling are finished, a driving mechanism is not additionally added, the movable plate is moved up and down, low-cost cooling is achieved, and the welding quality of some special materials is improved.

Preferably, two equal fixed mounting has the second slide bar on the splint, set up on the fly leaf diapire with two second slide bar matched with second spout.

The sliding of the two clamping plates is completed by the arrangement of the second sliding rod and the second sliding groove which are matched with each other, so that the sliding of the two clamping plates is more stable, the position of a welding device clamped by the clamping plates is more accurate, and the welding quality is improved.

Preferably, the distance adjusting mechanism is symmetrically and fixedly installed on two fixed plates on the bottom wall of the movable plate, two bidirectional threaded rods are installed between the fixed plates in a rotating mode, two threaded holes are formed in the clamping plates respectively, and the two threaded holes are in threaded engagement with the bidirectional threaded rods respectively.

Two sections of threads with opposite directions are arranged on the bidirectional threaded rod respectively, two threaded holes matched with the two sections of threads are formed in the two clamping plates respectively, the two clamping plates are driven to move by rotating the bidirectional threaded rod to drive the threads to drive the two clamping plates to lean against or be away from each other, the structure is simple, the operation is stable, the welding machine is convenient to clamp or loosen, the welding machine can be conveniently disassembled and assembled, the maintenance is convenient, and the good welding quality is guaranteed.

Compared with the prior art, the invention has the beneficial effects that:

1. the two connecting rods are kept away from each other through the pressing effect of the two driving rods, the four clamping rods are driven to clamp the blank, the blank is more stable during welding, the positioning is more accurate, the welding precision and the welding quality are improved, and meanwhile the clamping mode is suitable for blanks of different sizes, so that the welding flexibility is improved.

2. The welding-completed blank is cooled by spraying water through the cooling pipe, other moving measures are not needed to be added, the cooling efficiency is improved, quick cooling is realized for some special material blanks, the welding quality is further improved, meanwhile, water spraying and water storage of the cooling pipe are completed through lifting of the movable plate, other driving devices are not added, and the cooling cost is reduced.

3. Two clamping plates are driven by the distance adjusting device to clamp the welding device, so that the welding device is convenient to mount and dismount, and the welding device is convenient to maintain and repair.

Drawings

FIG. 1 is a schematic view of a multi-sized press-clamping apparatus according to the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a left side view of the present invention;

FIG. 4 is a top view of the multi-sized press-on clamping device of the present invention;

FIG. 5 is an enlarged view of part A of the structure of the present invention;

FIG. 6 is an enlarged view of the structure of part B of the present invention;

fig. 7 is an enlarged view of the structure of part C of the present invention.

In the figure: 1. a work table; 2. a fixed mount; 3. a cylinder; 4. a movable plate; 5. a blank; 6. fixing the rod; 7. a rotating ring; 8. a clamping bar; 9. a slide bar; 10. a water tank; 11. a connecting rod; 12. a connecting plate; 13. adjusting the spring; 14. a connecting ring; 15. a wedge block; 16. a reset plate; 17. a drive rod; 18. a jack; 19. a first slide bar; 20. a first chute; 21. a return spring; 22. a water outlet; 23. a cooling tube; 24. a piston rod; 25. a gooseneck; 26. a suction pipe; 27. a splint; 28. a welder; 29. a fixing plate; 30. a bidirectional threaded rod; 31. a second slide bar; 32. a second runner.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, the present invention provides a high frequency welding machine, which has the following technical scheme:

the utility model provides a high-frequency welding machine, includes workstation 1, and fixed mounting has mount 2 on the workstation 1, and movable mounting has fly leaf 4 on the inside wall of mount 2, and fixed mounting has cylinder 3 on the outer roof of mount 2, and symmetrical movable mounting has two splint 27 on fly leaf 4, and two splint 27 all are "L" type, and two splint 27 press from both sides jointly and are equipped with welding ware 28, install interval adjustment mechanism between two splint 27 and the fly leaf 4.

The welding device 28 is clamped by adjusting the distance between the two clamping plates 27, so that the welding device 28 is convenient to assemble and disassemble, and the welding device 28 is convenient to maintain.

Referring to fig. 7, as an embodiment of the present invention, a second sliding rod 31 is fixedly mounted on each of the two clamping plates 27, and a second sliding slot 32 matched with the two second sliding rods 31 is formed in the bottom wall of the movable plate 4.

The sliding of the two clamping plates 27 is completed by arranging the second sliding rod 31 and the second sliding groove 32 which are matched with each other, so that the sliding of the two clamping plates 27 is more stable, the position of the welding device 28 clamped by the clamping plates 27 is more accurate, and the welding quality is improved.

Referring to fig. 7, as an embodiment of the present invention, the distance adjustment mechanism is symmetrically and fixedly installed on two fixing plates 29 on the bottom wall of the movable plate 4, a bidirectional threaded rod 30 is installed between the two fixing plates 29 in a rotating manner, two threaded holes are respectively opened on the two clamping plates 27, and the two threaded holes are respectively engaged with the bidirectional threaded rod 30 in a threaded manner.

Two sections of threads with opposite directions are respectively arranged on the bidirectional threaded rod 30, two threaded holes matched with the two sections of threads are respectively formed in the two clamping plates 27, the two clamping plates 27 are driven to mutually lean against or be away from each other by rotating the bidirectional threaded rod 30 to drive the threads to drive, the structure is simple, the operation is stable, the welding device 28 is conveniently clamped or loosened, the welding device 28 can be conveniently disassembled and assembled, the maintenance is convenient, and the good welding quality is guaranteed.

Blank 5 is placed on the top wall of workstation 1, installs many sizes between fly leaf 4 and the workstation 1 and presses clamping device.

The blank 5 is positioned and reinforced by arranging the clamping device on the workbench 1, so that the welding precision is improved.

As an embodiment of the invention, referring to fig. 1 and 5, the multi-size pressing and clamping device comprises two fixed rods 6 symmetrically installed on a workbench 1, two rotating rings 7 are rotatably installed on the two fixed rods 6, two clamping rods 8 are symmetrically and fixedly installed on each rotating ring 7, two reset plates 16 are symmetrically and movably installed on the workbench 1, connecting rings 14 are fixedly installed on the outer walls of the two reset plates 16 close to one side, wedge blocks 15 are fixedly installed on the inner walls of the two connecting rings 14 close to one side of the reset plates 16, two driving rods 17 are symmetrically and fixedly installed on the movable plate 4, jacks 18 matched with the two driving rods 17 are formed in the workbench 1, adjusting springs 13 are fixedly installed on the outer walls of the two connecting rings 14 close to one side, connecting plates 12 are fixedly installed at one ends of the two adjusting springs 13 close to one side, connecting rods 11 are fixedly installed on the outer walls of the two connecting plates 12 close to, two ends of the two connecting rods 11 are respectively rotatably provided with two sliding rods 9, and one ends of the two sliding rods 9 far away from the connecting rods 11 are respectively slidably arranged with the two clamping rods 8.

Descend through two actuating levers 17 of fly leaf 4, two wedge 15 are pressed on the way to descend, make two wedge 15 keep away from mutually, thereby stimulate two adjusting spring 13 and connecting plate 12, two connecting rods 11 of pulling keep away from mutually, when connecting rod 11 keeps away from each other, two slide bar 9 can be pulled and slide on corresponding clamping bar 8, drive splint 27 angle regulation simultaneously, the contained angle between two clamping bar 8 that are close to stock 5 reduces gradually, until pressing from both sides stock 5 tight, this clamping mode is similar to the scissors, owing to set up adjusting spring 13 additional, make the size range that can press from both sides tight bigger, thereby improve the flexibility of centre gripping, the stability of stock 5 when the welding has been improved, make stock 5 welded position more accurate simultaneously, further welded quality and precision have been improved.

Referring to fig. 5, as an embodiment of the present invention, first slide bars 19 are fixedly mounted on bottom walls of two reset plates 16, first slide grooves 20 matched with the two first slide bars 19 are symmetrically formed on the workbench 1, reset springs 21 are fixedly mounted on outer walls of opposite sides of the two first slide bars 19, and ends of the two reset springs 21 far away from the first slide bars 19 are fixedly mounted on inner walls of the first slide grooves 20.

Through setting up first slide bar 19 and first spout 20 of mutually supporting, make two reset plate 16 more stable when removing, the skew is difficult for appearing, the reset spring 21 of installation can help two reset plate 16 to reset simultaneously on the first slide bar 19, thereby help parts such as go-between 14 to reset, realize when actuating lever 17 and wedge 15 leave mutually, each part resets, thereby realize that clamp 8 leaves stock 5, remove tight effect of clamp, can loosen automatically when realizing clamp 8 self-holding, thereby further improved the location and the clamping effect to stock 5, welded quality and precision have further been improved.

An automatic cooling and water storage mechanism is arranged between the workbench 1 and the movable plate 4.

The blank 5 is rapidly cooled through the cooling mechanism, so that the welding quality and precision of the special material are improved.

Referring to fig. 3, as an embodiment of the present invention, the automatic cooling and water storing mechanism includes a cooling pipe 23 fixedly installed on the workbench 1, a piston rod 24 matched with the cooling pipe 23 is fixedly installed on the bottom wall of the movable plate 4, a water tank 10 is placed below the workbench 1, a gooseneck 25 is fixedly installed on the top wall of one side of the cooling pipe 23 close to the blank 5, a water suction pipe 26 is installed on the top wall of the cooling pipe 23, one end of the water suction pipe 26 far away from the cooling pipe 23 penetrates through the outer wall of the workbench 1 and extends into the water tank 10, a drain 22 is opened on the workbench 1, and a filter screen is arranged on the drain 22.

The suction pipe 26 and the gooseneck 25 are both provided with one-way valves, and the end part of the gooseneck 25 is provided with a spray head, when the movable plate 4 descends, the piston rod 24 descends, the space of the upper half part of the cooling pipe 23 increases, the internal air pressure decreases, so that the water in the water tank 10 can flow into the cooling pipe 23 through the suction pipe 26, after the welding is finished, the movable plate 4 starts to ascend to drive the piston rod 24 to ascend, the space of the upper half part of the cooling pipe 23 is extruded, water is extruded from the gooseneck 25, the blank 5 is sprinkled, the rapid cooling is carried out on the mixture, one part of water is evaporated, the other part of the water flows into the drain port 22 through the action of gravity, get back to the water tank 10 of below, not only accomplished automatic watering cooling, still do not have the actuating mechanism that adds in addition, adopt the displacement that movable plate 4 reciprocated to realize low-cost cooling to the welding quality of some special materials has been improved.

The working principle is as follows: two sections of threads with opposite directions are respectively arranged on the bidirectional threaded rod 30, two threaded holes matched with the two sections of threads are respectively formed in the two clamping plates 27, the two clamping plates 27 are driven to mutually lean against or be away from each other by rotating the bidirectional threaded rod 30 to drive the threads to drive, the structure is simple, the operation is stable, the welding device 28 is conveniently clamped or loosened, the welding device 28 can be conveniently disassembled and assembled, the maintenance is convenient, and the good welding quality is guaranteed.

Two driving rods 17 of the movable plate 4 descend, and two wedge blocks 15 are pressed on the way of descending, so that the two wedge blocks 15 are far away from each other, two adjusting springs 13 and a connecting plate 12 are pulled, two connecting rods 11 are pulled to be far away from each other, when the connecting rods 11 are far away from each other, two sliding rods 9 can be pulled to slide on corresponding clamping rods 8, and meanwhile, the clamping plates 27 are driven to adjust the angle, the included angle between the two clamping rods 8 close to the blank 5 is gradually reduced until the blank 5 is clamped, the clamping mode is similar to a pair of scissors, and due to the fact that the adjusting springs 13 are additionally arranged, the size range capable of being clamped is larger, so that the clamping flexibility is improved, the stability of the blank 5 during welding is improved, meanwhile, the welding position of the blank 5 is more accurate, and the welding quality and precision are further improved; through setting up first slide bar 19 and first spout 20 of mutually supporting, make two reset plate 16 more stable when removing, the skew is difficult for appearing, the reset spring 21 of installation can help two reset plate 16 to reset simultaneously on the first slide bar 19, thereby help parts such as go-between 14 to reset, realize when actuating lever 17 and wedge 15 leave mutually, each part resets, thereby realize that clamp 8 leaves stock 5, remove tight effect of clamp, can loosen automatically when realizing clamp 8 self-holding, thereby further improved the location and the clamping effect to stock 5, welded quality and precision have further been improved.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-frequency welding machine, includes workstation (1), its characterized in that: fixed mounting has mount (2) on workstation (1), movable mounting has fly leaf (4) on the inside wall of mount (2), fixed mounting has cylinder (3) on the outer roof of mount (2), symmetry movable mounting has two splint (27) on fly leaf (4), and two splint (27) all are "L" type, two splint (27) press from both sides jointly and are equipped with welding ware (28), two install interval adjustment mechanism between splint (27) and fly leaf (4), blank (5) have been placed on workstation (1) roof, install many sizes between fly leaf (4) and workstation (1) and press and move clamping device, install automatic cooling retaining mechanism between workstation (1) and fly leaf (4).

2. The high frequency welding machine of claim 1, wherein: the multi-size pressing and clamping device comprises two fixing rods (6) symmetrically installed on a workbench (1), two fixing rods (6) are symmetrically installed on the fixing rods (6) and are provided with two rotating rings (7), each rotating ring (7) is provided with two clamping rods (8) symmetrically and fixedly installed on the corresponding side, two reset plates (16) are symmetrically and movably installed on the workbench (1) and are provided with two connecting rings (14) and two wedge blocks (15) respectively and fixedly installed on the inner wall of one side, close to the reset plates (16), of the connecting rings (14), two driving rods (17) are symmetrically and fixedly installed on the movable plate (4), two insertion holes (18) matched with the two driving rods (17) are formed in the workbench (1), and two adjusting springs (13) are fixedly installed on the outer wall of one side, close to the connecting rings (14), two equal fixed mounting in the close one end of regulating spring (13) has connecting plate (12), two equal fixed mounting has connecting rod (11), two on the close one side outer wall of connecting plate (12) connecting rod (11) both ends are rotated respectively and are installed two slide bars (9), two slide bar (9) are kept away from connecting rod (11) one end and are all with two clamping bar (8) slidable mounting.

3. A high frequency welding machine as defined in claim 2 wherein: two equal fixed mounting has first slide bar (19) on reset plate (16) diapire, first spout (20) with two first slide bars (19) matched with are seted up to the symmetry on workstation (1), two equal fixed mounting has reset spring (21), two on first slide bar (19) one side outer wall in opposite directions reset spring (21) keep away from the equal fixed mounting of first slide bar (19) one end on the inner wall of first spout (20).

4. The high frequency welding machine of claim 1, wherein: automatic cooling retaining mechanism includes cooling tube (23) of fixed mounting on workstation (1), fixed mounting has piston rod (24) with cooling tube (23) matched with on fly leaf (4) diapire, water tank (10) have been placed to workstation (1) below, fixed mounting has gooseneck (25) on cooling tube (23) are close to the roof of stock (5) one side, install on cooling tube (23) roof and absorb water pipe (26), it runs through the outer wall of workstation (1) and extends to in water tank (10) to absorb water pipe (26) keep away from cooling tube (23) one end, mouth of a river (22) under having seted up on workstation (1), be equipped with the filter screen on mouth of a river (22) down.

5. The high frequency welding machine of claim 1, wherein: two all fixed mounting has second slide bar (31) on splint (27), set up on fly leaf (4) diapire with two second slide bar (31) matched with second spout (32).

6. The high frequency welding machine of claim 1, wherein: two fixed plates (29) of interval adjustment mechanism symmetry fixed mounting on fly leaf (4) diapire, two rotate jointly between fixed plate (29) and install two-way threaded rod (30), two seted up two screw holes on splint (27) respectively, two the screw hole respectively with two-way threaded rod (30) between the screw thread mesh.