CN211438778U

CN211438778U - Fixing device of surfacing machine

Info

Publication number: CN211438778U
Application number: CN201922341165.6U
Authority: CN
Inventors: 袁博
Original assignee: Zhangjiagang Bopeng Heavy Industry Machinery Co Ltd
Current assignee: Zhangjiagang Bopeng Heavy Industry Machinery Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-08
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a fixing device of surfacing welding machine relates to surfacing welding technical field. In this application, a surfacing machine fixture includes: surfacing machine is connected to the organism, and the organism includes: surfacing machine is connected to shell, the inside cavity that is of shell, shell surface is opened there is the through-hole, inner shell and shell one-tenth same axle center, the inner shell sets up inside the shell, the spliced pole sets up at the shell periphery, inner shell peripheral surface is connected to spliced pole one end, shell inner wall surface is connected to the spliced pole other end, clamping device sets up inside the shell, clamping device is used for pressing from both sides tightly waiting to process the surfacing piece, locking device sets up in the clamping device top, locking device is connected with the shell, there is the interval between locking device and the clamping device, locking device includes: the bottom plate is arranged above the clamping device. The utility model is used for solve among the prior art work piece appear easily not hard up and clamping device can't carry out the problem that the automatic adjustment adapts to the overlaying welding piece of different models in the fixed back overlaying welding course through clamping device.

Description

Fixing device of surfacing machine

Technical Field

The utility model relates to a build-up welding technical field, in particular to fixing device of build-up welding machine.

Background

The surfacing machine has the advantages that the surfacing machine is simple in operation and has the functions of surfacing repair and strengthening of the surface coatings of the hard alloys such as the outer tungsten carbide and the like, the surfacing process of the surfacing machine is repeated melting and accumulation of high-frequency welding points, the parts which can be contacted can be repaired no matter the sizes of defects, the repaired workpiece is not deformed, welding marks are not left, undercuts are not formed, and the physical properties of the workpiece such as hardness, wear resistance, heat resistance, corrosion resistance and the like are not changed.

However, when the surfacing welding piece is processed in the surfacing welding machine, the surfacing welding piece is clamped by the clamping device of the surfacing welding machine and then is rotated for surfacing welding operation, in the existing clamping device, the surfacing welding piece is clamped by the fixed clamping head, because the clamping mode is simple, the surfacing welding piece is easy to loosen during surfacing welding processing rotation, the surfacing welding effect is affected, meanwhile, because the clamping head is fixed and cannot correspond to surfacing welding pieces of different models, different surfacing welding machines or the clamping heads need to be replaced, the replacement frequency and the use are increased, meanwhile, the number of the surfacing welding machines or the clamping heads is increased, and the resource waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fixing device of surfacing machine for solve among the prior art work piece appear becoming flexible easily in the fixed back surfacing welding course of working through clamping device and clamping device can't carry out the problem that the automatic adjustment adapts to the surfacing welding piece of different models.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions: a fixing device of a build-up welding machine, comprising: this surfacing machine is connected to the organism, and this organism includes: the shell is connected with the surfacing machine, the interior of the shell is hollow, and the surface of the shell is provided with a through hole; the inner shell and the outer shell form the same axis, the inner shell is arranged in the outer shell, and a distance exists between the outer surface of the inner shell and the inner avoiding surface of the outer shell; the connecting column is arranged on the periphery of the inner shell, one end of the connecting column is connected with the peripheral surface of the inner shell, and the other end of the connecting column is connected with the inner wall surface of the outer shell; the clamping device is arranged in the outer shell and movably connected with the connecting column, penetrates through the inner shell and is used for clamping a build-up welding piece to be processed; locking device, this locking device sets up above this clamping device, and this locking device is connected with this shell, has the interval between this locking device and this clamping device, and this locking device includes: the bottom plate is arranged above the clamping device and detachably connected with the shell, and a space is reserved between the bottom plate and the clamping device.

In the technical scheme, this application embodiment is in order to solve the work piece and appear becoming flexible easily in the build-up welding course after fixing through clamping device and the unable build-up welding piece that carries out the automatic adjustment adaptation different models of clamping device influences the build-up welding effect, increase working cost, use through clamping device and locking device's cooperation, place the inside back of build-up welding machine at the work piece, carry out the centre gripping to the work piece through adding the holding device, locking device starts to lock clamping device simultaneously, keep clamping device's clamping state through locking device, prevent that the work piece from taking place to become flexible in the course of working, thereby the inside work piece that is mobilizable adaptation different models of clamping device simultaneously, reduce the processing cost, and the machining efficiency is improved.

Further, in the embodiment of the present invention, the outer peripheral surface of the housing is provided with a rectangular block, the rectangular block is fixedly connected with the housing, and the inside of the rectangular block is hollow; the outer periphery of the inner shell is provided with a rectangular groove, the clamping device penetrates through the rectangular groove, and the rectangular groove is matched with the clamping device; the connecting columns are arranged on two sides of the clamping device respectively, a T-shaped through hole is formed in the inner side of each connecting column, the clamping device is movably connected with the T-shaped through hole, and the clamping device is used for sliding along the extending side of the T-shaped through hole.

Further, in the embodiment of the present invention, the clamping device includes: the adjusting plate is arranged on one side of the connecting column, the adjusting plate is rectangular, sliding blocks are arranged on the left side and the right side of the adjusting plate, the sliding blocks are embedded in the connecting column, a circular through hole is formed in the surface of the adjusting plate, and the sliding blocks form a T-shaped upright column; the clamping plate is arranged below the adjusting plate and movably connected with the adjusting plate, and a space is reserved between the clamping plate and the adjusting plate.

Further, in the embodiment of the present invention, the clamping plate main body is rectangular, the connecting block is disposed on the upper surface of the clamping plate, and the adjusting plate is connected to the connecting block.

Further, in the embodiment of the present invention, a pressing area is disposed on the left side of the clamping plate, the pressing area is disposed in an inclined manner, and the pressing area and the clamping plate are integrally formed; the right side of the clamping plate is provided with a squeezing area which is parallel to the connecting block, the lower surface of the squeezing area is lower than the lower surface of the jacking area, and the squeezing area is used for clamping the build-up welding piece to be processed.

Further, in the embodiment of the present invention, the lower surface of the adjusting plate is provided with an arc-shaped supporting shaft, the arc-shaped supporting shaft passes through the inside of the connecting block, and the connecting block of the clamping plate is used for making the clamping plate rotate circularly around the arc-shaped supporting shaft.

Further, in the embodiment of the present invention, the locking device further includes: the placing shell is arranged on the upper surface of the bottom plate, the placing shell is fixedly connected with the bottom plate, and the interior of the placing shell is hollow; the built-in sleeve is arranged in the placing shell, the built-in sleeve is attached to the inner wall of the placing shell, the built-in sleeve is hollow, and the upper surface of the built-in sleeve is lower than the upper surface of the placing shell; the cover plate is arranged on the upper surface of the placing shell, the appearance of the cover plate is matched with that of the placing shell, and the cover plate is detachably connected with the placing shell; the extrusion shaft is arranged in the placing shell, the extrusion shaft and the built-in sleeve form the same circle center, and a space is reserved between the periphery of the extrusion shaft and the inner wall of the built-in sleeve; a first spring disposed between an outer periphery of the pressing shaft and an inner wall of the inner sleeve; the locking handle is arranged above the bottom plate, and one end of the locking handle is movably connected with the bottom plate; the self-locking handle is arranged inside the locking handle and is movably connected with the locking handle; the locking hook is arranged inside the self-locking handle and fixedly connected with the self-locking handle; the fixed plate is arranged above the bottom plate and fixedly connected with the bottom plate, and a circular column is arranged on one side of the fixed plate.

Further, in the embodiment of the present invention, the circular column of the fixing plate is matched with the bending portion of the locking hook, and the circular column is used for preventing the locking hook from separating from the fixing plate.

Further, in the embodiment of the present invention, the extrusion shaft is cross-shaped, the periphery of the extrusion shaft is attached to the inner wall of the placing shell, the bottom end of the extrusion shaft passes through the bottom plate and contacts with the holding device, and the extrusion shaft is used for sliding up and down along the path of the inner wall of the placing shell.

Further, in the embodiment of the present invention, the top end of the pressing shaft passes through the cover plate, and the top end of the pressing shaft is used for the locking handle to press the pressing shaft downwards to the clamping device.

The utility model has the advantages that: first, the utility model discloses the fixing device of surfacing machine prevents to process not hard up and leads to the surfacing effect to descend when the work piece surfacing welding is add, work piece to different models can automatic adjustment reduce the processing cost, through clamping device, locking device enters into the surfacing machine when inside at the work piece, clamping device is close to the work piece surface when the top of work piece contacts clamping device, thereby the laminating work piece, prevent that the work piece from continuing inside the removal, locking device locks clamping device after clamping device fixes the work piece, thereby prevent that clamping device from taking place to reciprocate, after locking device locks clamping device, the built-in self-locking mechanism of locking device starts, prevent that locking device from being touched the back unblock by accident, lead to the not hard up influence surfacing effect of work piece.

Drawings

The present application is further described below with reference to the drawings and examples.

Fig. 1 is a front view of a fixing device of a surfacing welding machine according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a clamping device of a fixing device of a surfacing welding machine according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a locking device of a fixing device of a surfacing welding machine according to an embodiment of the present invention.

Fig. 4 is a schematic view of the internal structure of the locking device of the fixing device of the surfacing welding machine according to the embodiment of the present invention.

Fig. 5 is an internal schematic view of a self-locking structure of a locking device of a fixing device of a surfacing welding machine according to an embodiment of the present invention.

10. Body 101, connecting column 102 and shell

103. Inner shell 20, workpiece 30, clamping device

301. Clamping plate 302, adjusting plate 303 and jacking area

304. Pressing area 305, slide block 40, locking device

401. Bottom plate 402, locking handle 403 and self-locking handle

404. Latch hook 405, place shell 406, fixed plate

407. A first spring 408, a pressing shaft 409 and an inner sleeve

410. Cover 411, second spring

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some, but not all, embodiments of the present invention and are not to be considered as limiting, and that all other embodiments can be made by one of ordinary skill in the art without any inventive work.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

The first embodiment is as follows:

as shown in fig. 1 and 2, the present embodiment discloses a fixing device of a surfacing welding machine, including: organism 10, clamping device 30, locking device 40, outer shell 102, inner shell 103, spliced pole 101, bottom plate 401, the surfacing machine is connected to organism 10, and organism 10 includes: surfacing machine is connected to shell 102, the inside cavity that is of shell 102, shell 102 surface is opened there is the through-hole, inner shell 103 becomes same axle center with shell 102, inner shell 103 sets up inside shell 102, the face of keeping away in inner shell 103 surface and the shell 102 has the interval, spliced pole 101 sets up in inner shell 103 periphery, inner shell 103 peripheral surface is connected to spliced pole 101 one end, shell 102 inner wall surface is connected to the spliced pole 101 other end, clamping device 30 sets up inside shell 102, clamping device 30 and spliced pole 101 swing joint, clamping device 30 passes inner shell 103, clamping device 30 is used for pressing from both sides the tight piece of waiting to process surfacing, locking device 40 sets up in clamping device 30 top, locking device 40 is connected with shell 102, there is the interval between locking device 40 and the clamping device 30, locking device 40 includes: the base plate 401 is disposed above the holding device 30, the base plate 401 is detachably connected to the housing 102, and a space is reserved between the base plate 401 and the holding device 30.

The embodiment of the application aims at solving the problem that the workpiece 20 is easy to loose and the clamping device cannot automatically adjust to the surfacing parts adapting to different models in the fixed back surfacing process through the clamping device to influence the surfacing effect, the working cost is increased, the clamping device 30 and the locking device 40 are matched for use, the workpiece 20 is clamped by the clamping device after the surfacing part is placed in the workpiece 20, the clamping device 40 is started to lock the clamping device 30, the clamping state of the clamping device 30 is kept through the locking device 40, the workpiece 20 is prevented from loosening in the process of machining, the workpiece 20 which is movable in the clamping device 30 is adapted to different models, the machining cost is reduced, and the machining efficiency is improved.

Specifically, the outer peripheral surface of the housing 102 is provided with a rectangular block, the rectangular block is fixedly connected with the housing 102, and the interior of the rectangular block is hollow; a rectangular groove is formed in the periphery of the inner shell 103, the clamping device 30 penetrates through the rectangular groove, and the rectangular groove is matched with the clamping device 30; the number of the connecting columns 101 is two, the connecting columns 101 are respectively arranged on two sides of the clamping device 30, a T-shaped through hole is formed in the inner side of each connecting column 101, the clamping device 30 is movably connected with the T-shaped through hole, and the clamping device 30 is used for sliding along the extending side of the T-shaped through hole.

Specifically, as shown in fig. 2, the holding device 30 includes: adjusting plate 302, grip block 301, adjusting plate 302 sets up in spliced pole 101 one side, adjusting plate 302 is the rectangle, the adjusting plate 302 left and right sides is provided with sliding block 305, the sliding block 305 is embedded inside spliced pole 101, the circular through-hole has been opened on adjusting plate 302 surface, sliding block 305 becomes the T shape stand, grip block 301 sets up in adjusting plate 302 below, grip block 301 and adjusting plate 302 swing joint, there is the interval between grip block 301 and the adjusting plate 302.

Specifically, the main body of the clamping plate 301 is rectangular, and the upper surface of the clamping plate 301 is provided with a connecting block which is connected with the adjusting plate 302.

Specifically, a top pressure area 303 is arranged on the left side of the clamping plate 301, the top pressure area 303 is arranged in an inclined manner, and the top pressure area 303 and the clamping plate 301 are integrally formed; the right side of the clamping plate 301 is provided with a pressing area 304, the pressing area 304 is parallel to the connecting block, the lower surface of the pressing area 304 is lower than the lower surface of the top pressing area 303, and the pressing area 304 is used for clamping the build-up welding piece to be processed.

Specifically, the lower surface of the adjusting plate 302 is provided with an arc-shaped supporting shaft, the arc-shaped supporting shaft penetrates through the inside of the connecting block, and the connecting block of the clamping plate 301 is used for enabling the clamping plate 301 to rotate circularly around the arc-shaped supporting shaft.

Specifically, as shown in fig. 3, 4 and 5, the locking device 40 further includes: the device comprises a placing shell 405, a built-in sleeve 409, a cover plate 410, a squeezing shaft 408, a first spring 407, a locking handle 402, a self-locking handle 403, a locking hook 404 and a fixing plate 406, wherein the placing shell 405 is arranged on the upper surface of a bottom plate 401, the placing shell 405 is fixedly connected with the bottom plate 401, and the interior of the placing shell 405 is hollow; the built-in sleeve 409 is arranged in the placing shell 405, the built-in sleeve 409 is attached to the inner wall of the placing shell 405, the built-in sleeve 409 is hollow, and the upper surface of the built-in sleeve 409 is lower than that of the placing shell 405; the cover plate 410 is arranged on the upper surface of the placing shell 405, the cover plate 410 is matched with the placing shell 405 in shape, and the cover plate 410 is detachably connected with the placing shell 405; the extrusion shaft 408 is arranged in the placing shell 405, the extrusion shaft 408 and the built-in sleeve 409 form the same circle center, and a space is reserved between the periphery of the extrusion shaft 408 and the inner wall of the built-in sleeve 409; a first spring 407, the first spring 407 being disposed between an outer periphery of the pressing shaft 408 and an inner wall of the inner sleeve 409; the locking handle 402 is arranged above the bottom plate 401, and one end of the locking handle 402 is movably connected with the bottom plate 401; the self-locking handle 403 is arranged inside the locking handle 402, and the self-locking handle 403 is movably connected with the locking handle 402; a latch hook 404, wherein the latch hook 404 is arranged inside the self-locking handle 403, and the latch hook 404 is fixedly connected with the self-locking handle 403; and a fixing plate 406, wherein the fixing plate 406 is arranged above the bottom plate 401, the fixing plate 406 is fixedly connected with the bottom plate 401, and one side of the fixing plate 406 is provided with a circular column.

Specifically, the circular post of the fixing plate 406 is engaged with the bent portion of the locking hook 404, and the circular post is used to prevent the locking hook 404 from being separated from the fixing plate 406.

Specifically, the pressing shaft 408 is in a cross shape, the periphery of the pressing shaft 408 is attached to the inner wall of the placing shell 405, the bottom end of the pressing shaft 408 penetrates through the bottom plate 401 to contact the clamping device 30, and the pressing shaft 408 is used for sliding up and down along the path of the inner wall of the placing shell 405.

Specifically, the top end of the pressing shaft 408 penetrates through the cover plate 410, and the top end of the pressing shaft 408 is used for locking the handle 402 to press the pressing shaft 408 downwards to the clamping device 30.

Specifically, a second spring 411 is installed inside the locking handle 402, one end of the second spring 411 is connected to the self-locking handle 403, and the other end of the second spring 411 is connected to the locking handle 402.

In use, a workpiece 20 moves into the clamping device 30 through the right-side pushing force, the left end of the workpiece 20 moves to the pressing area 303, the clamping plate 301 rotates around the center of a circular through hole below the adjusting plate 302 by applying force to the pressing area 303, so that the pressing area 304 is attached to the periphery of the workpiece 20, the fixed state of the workpiece 20 is maintained, then the clamping device 30 is closed by pressing the locking handle 402, the lower surface of the locking handle 402 is attached to the pressing shaft 408, the pressing shaft 408 is attached to the upper surface of the adjusting plate 302 while pressing the self-locking handle 403, and the locking handle 402 is prevented from being loosened by clamping the locking hook 404 mounted on the self-locking handle 403 with the fixing plate 406, so that the clamping device 30.

When the workpiece 20 enters the surfacing machine through the clamping device 30 and the locking device 40, when the top end of the workpiece 20 contacts the clamping device 30, the clamping device 30 approaches the surface of the workpiece 20, so that the workpiece 20 is attached to the surface of the workpiece, the workpiece 20 is prevented from moving inwards continuously, after the clamping device 30 fixes the workpiece 20, the locking device 40 locks the clamping device 30, so that the clamping device 30 is prevented from moving up and down, after the locking device 40 locks the clamping device 30, a self-locking mechanism arranged in the locking device 40 is started, the locking device 40 is prevented from being unlocked after being accidentally touched, and the workpiece 20 is prevented from loosening to affect the surfacing effect.

Although the illustrative embodiments of the present application have been described above to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the embodiments, and various modifications within the spirit and scope of the present application defined and determined by the appended claims will be apparent to those skilled in the art from this disclosure.

Claims

1. A fixing device of a build-up welding machine, comprising:

the organism, the organism is connected the surfacing machine, the organism includes:

the shell is connected with the surfacing machine, the interior of the shell is hollow, and a through hole is formed in the surface of the shell;

the inner shell and the outer shell form the same axis, the inner shell is arranged in the outer shell, and a distance exists between the outer surface of the inner shell and the inner avoiding surface of the outer shell;

the connecting column is arranged on the periphery of the inner shell, one end of the connecting column is connected with the peripheral surface of the inner shell, and the other end of the connecting column is connected with the inner wall surface of the outer shell;

the clamping device is arranged inside the outer shell and movably connected with the connecting column, penetrates through the inner shell and is used for clamping a build-up welding piece to be processed;

a locking device disposed above the clamping device, the locking device connected to the housing, the locking device spaced from the clamping device, the locking device comprising:

the bottom plate is arranged above the clamping device and detachably connected with the shell, and a space is reserved between the bottom plate and the clamping device.

2. The fixing device of the surfacing machine according to claim 1, wherein the outer peripheral surface of the housing is provided with a rectangular block, the rectangular block is fixedly connected with the housing, and the inside of the rectangular block is hollow;

a rectangular groove is formed in the periphery of the inner shell, the clamping device penetrates through the rectangular groove, and the rectangular groove is matched with the clamping device;

the connecting column is provided with two, the connecting column is arranged on two sides of the clamping device respectively, a T-shaped through hole is formed in the inner side of the connecting column, the clamping device is movably connected with the T-shaped through hole, and the clamping device is used for sliding along the extending side of the T-shaped through hole.

3. The fixing device of a surface-welding machine according to claim 1, wherein the clamping device comprises:

the adjusting plate is arranged on one side of the connecting column, the adjusting plate is rectangular, sliding blocks are arranged on the left side and the right side of the adjusting plate, the sliding blocks are embedded in the connecting column, a circular through hole is formed in the surface of the adjusting plate, and the sliding blocks form a T-shaped upright column;

the clamping plate is arranged below the adjusting plate and movably connected with the adjusting plate, and a space is reserved between the clamping plate and the adjusting plate.

4. The fixing device of the surfacing machine according to claim 3, wherein the clamping plate main body is rectangular, and the upper surface of the clamping plate is provided with a connecting block which is connected with the adjusting plate.

5. The fixing device of the surfacing machine according to claim 4, wherein a top pressure area is arranged on the left side of the clamping plate, the top pressure area is arranged in an inclined manner, and the top pressure area is integrally formed with the clamping plate;

and the right side of the clamping plate is provided with a squeezing area which is parallel to the connecting block, the lower surface of the squeezing area is lower than that of the jacking area, and the squeezing area is used for clamping the build-up welding piece to be processed.

6. The fixing device of a surface welding machine as claimed in claim 4, wherein the lower surface of the adjusting plate is provided with an arc-shaped supporting shaft, the arc-shaped supporting shaft passes through the inside of the connecting block, and the connecting block of the clamping plate is used for enabling the clamping plate to rotate circularly around the arc-shaped supporting shaft.

7. The fixing device of the surfacing machine according to claim 1, wherein the locking device further comprises:

the placing shell is arranged on the upper surface of the bottom plate, the placing shell is fixedly connected with the bottom plate, and the interior of the placing shell is hollow;

the built-in sleeve is arranged inside the placing shell, the built-in sleeve is attached to the inner wall of the placing shell, the built-in sleeve is hollow, and the upper surface of the built-in sleeve is lower than the upper surface of the placing shell;

the cover plate is arranged on the upper surface of the placing shell, the appearance of the cover plate is matched with that of the placing shell, and the cover plate is detachably connected with the placing shell;

the extrusion shaft is arranged in the placing shell, the extrusion shaft and the built-in sleeve form the same circle center, and a space is reserved between the periphery of the extrusion shaft and the inner wall of the built-in sleeve;

a first spring disposed between an outer periphery of the pressing shaft and an inner wall of the inner sleeve;

the locking handle is arranged above the bottom plate, and one end of the locking handle is movably connected with the bottom plate;

the self-locking handle is arranged inside the locking handle and is movably connected with the locking handle;

the locking hook is arranged inside the self-locking handle and fixedly connected with the self-locking handle;

the fixing plate is arranged above the bottom plate and fixedly connected with the bottom plate, and a circular column is arranged on one side of the fixing plate.

8. The fixing device of the surface welding machine as claimed in claim 7, wherein the circular column of the fixing plate is matched with the bent part of the locking hook, and the circular column is used for preventing the locking hook from being separated from the fixing plate.

9. The fixing device of the surfacing machine according to claim 7, wherein the pressing shaft is in a cross shape, the periphery of the pressing shaft is attached to the inner wall of the placing shell, the bottom end of the pressing shaft penetrates through the bottom plate to contact the clamping device, and the pressing shaft is used for sliding up and down along the path of the inner wall of the placing shell.

10. The fixing device of a surface welding machine as set forth in claim 7, wherein the pressing shaft tip penetrates the cover plate, and the pressing shaft tip is used for the locking handle to press the pressing shaft downward to the clamping device.