CN216138416U

CN216138416U - Main line automobile body part upset clamping device

Info

Publication number: CN216138416U
Application number: CN202121949025.8U
Authority: CN
Inventors: 张曦予; 李洪鑫; 丁福建
Original assignee: Tianjin Zhiyu Tiancheng Technology Co ltd
Current assignee: Tianjin Zhiyu Tiancheng Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-29
Anticipated expiration: 2031-08-19

Abstract

The application discloses a mainline vehicle body part overturning and clamping device which comprises a circular table and a clamping mechanism, wherein the center of the top end of the outer wall of the circular table is rotatably connected with the bottom end of a connecting column, and the top end of the connecting column is fixedly connected with the center of the bottom end of the outer wall of a cavity plate; the clamping mechanism comprises a lower arc-shaped plate, the bottom end of the outer wall of the lower arc-shaped plate is fixedly connected with the center of the top end of the outer wall of the cavity plate, and the top ends of the left side and the right side of the outer wall of the lower arc-shaped plate are fixedly connected with the fixed blocks respectively. Through starting the double-shaft motor, the double-shaft motor drives the pivot and rotates, the pivot drives fourth bevel gear and rotates, and third bevel gear with fourth bevel gear meshing complex rotates thereupon, and third bevel gear drives the driven shaft and rotates, and the driven shaft drives the threaded rod and rotates, and threaded rod screw-thread fit's cavity axle moves down, makes two cavity axles mutually support and drives the arc and move down, realizes going up the connection of arc and lower arc, and the convenience is pressed from both sides the clamp tightly to the part to the convenience is to taking of part.

Description

Main line automobile body part upset clamping device

Technical Field

The application relates to the field of automobile part machining, in particular to a mainline automobile body part overturning and clamping device.

Background

Automobiles are power-driven, non-rail-borne vehicles with 4 or more than 4 wheels, primarily used for: carrying personnel and/or goods; a vehicle for towing persons and/or goods; the application is special. The automobile welding main line relates to the processes of loading, positioning, clamping and welding parts, and the parts need to be fixed in the welding process of main line automobile body parts.

The existing welding process of the mainline vehicle body part requires manual operation of the processes of loading, positioning, clamping, welding and the like, so that the labor cost is increased, and the welding progress is also influenced. Therefore, the main line vehicle body part overturning and clamping device is provided for solving the problems.

Disclosure of Invention

The main line car body part overturning and clamping device is provided in the embodiment and used for solving the problem that manual clamping is needed in part welding processing in the prior art.

According to one aspect of the application, the mainline vehicle body part overturning and clamping device comprises a circular truncated cone and a clamping mechanism, wherein the center of the top end of the outer wall of the circular truncated cone is rotatably connected with the bottom end of a connecting column, and the top end of the connecting column is fixedly connected with the center of the bottom end of the outer wall of a cavity plate;

clamping mechanism includes the arc down, arc outer wall bottom fixed connection cavity board outer wall top center department down, arc outer wall left and right sides top is fixed connection fixed block respectively down, two the fixed block rotates respectively to connect and runs through the driven shaft top, two driven shaft top is fixed connection threaded rod bottom respectively, two the threaded rod top is threaded respectively and cup joints in cavity axle inner chamber bottom, two cavity axle outer wall top is fixed connection roof bottom left and right sides center department respectively, roof bottom center department fixed connection upper arc outer wall top center department, two the driven shaft bottom rotates respectively to connect and runs through the cavity board top left and right sides, and two the driven shaft bottom is fixed cup joints third bevel gear respectively.

Furthermore, the two third bevel gears are respectively meshed with fourth bevel gears, the two fourth bevel gears are respectively and fixedly sleeved on the outer wall of the driving shaft, the ends, far away from each other, of the driving shafts are respectively and rotatably connected with the centers of the left side and the right side of the inner wall of the cavity plate, the ends, close to each other, of the driving shafts are respectively and fixedly connected with the output ends of the double-shaft motor, and the double-shaft motor is fixedly sleeved on the inner wall of the cavity plate.

Furthermore, the centers of the left side and the right side of the bottom end of the outer wall of the cavity plate are fixedly connected with the top ends of the sliding blocks respectively, the two sliding blocks are sleeved in the inner cavity of the annular sliding groove in a sliding mode respectively, and the annular sliding groove is horizontally embedded in the top end of the outer wall of the circular truncated cone.

Furthermore, the bottom end of the connecting column is fixedly connected with the top end of the rotating column, the bottom end of the rotating column is rotatably connected with the center of the bottom end of the inner wall of the circular truncated cone, and the outer wall of the rotating column is fixedly sleeved with a second bevel gear.

Furthermore, the second bevel gear is engaged with the first bevel gear, the first bevel gear is fixedly sleeved at the left end of the rotating shaft, the right end of the rotating shaft is rotatably connected with and penetrates through the right side of the circular truncated cone, and the right end of the rotating shaft is fixedly connected with the center of one side of the turntable.

Further, the fixed positioning gear that cup joints of pivot outer wall, positioning gear joint gear lock one end, gear lock other end fixed connection connecting plate one side bottom, connecting plate top fixed connection pull ring, the connecting plate slides and cup joints in round platform top one side, just the connecting plate top slides and cup joints at the gag lever post outer wall.

Furthermore, the connecting magnetic block is embedded in the center of the connecting plate, the left side of the connecting magnetic block is connected with the left magnetic block through magnetic force, the top end of the left magnetic block is fixedly connected with the left end of the limiting rod, the right side of the connecting magnetic block is connected with the right magnetic block through magnetic force, and the top end of the right magnetic block is fixedly connected with the right end of the limiting rod.

Furthermore, the left side and the right side of the connecting plate are respectively fixedly connected with a connecting clamping block, the left connecting clamping block of the connecting plate is connected with the left clamping groove in a clamping mode, and the right connecting clamping block of the connecting plate is connected with the right clamping groove in a clamping mode.

Through the above-mentioned embodiment of this application, adopted clamping mechanism, solved the problem that part welding process needs the manual clamping, reduced the hand labor cost.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present application;

fig. 3 is a schematic diagram of a partial enlarged structure at a in fig. 2 according to an embodiment of the present application.

In the figure: 1. the rotary table comprises a circular table, 2, a rotating column, 3, a first bevel gear, 4, a second bevel gear, 5, a positioning gear, 6, a rotary table, 7, a rotating shaft, 8, a double-shaft motor, 9, a driven shaft, 10, a lower arc-shaped plate, 11, a top plate, 12, an upper arc-shaped plate, 13, a cavity shaft, 14, a threaded rod, 15, a fixing block, 16, a third bevel gear, 17, a cavity plate, 18, a driving shaft, 19, a sliding block, 20, an annular sliding groove, 21, a fourth bevel gear, 22, a limiting rod, 23, a pull ring, 24, a connecting magnetic block, 25, a left magnetic block, 26, a left clamping groove, 27, a connecting plate, 28, a connecting clamping block, 29, a right clamping groove, 30, a right magnetic block, 31, a gear lock, 32 and a connecting column.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The clamping mechanism in the present embodiment can be applied to various clamping devices, for example, the following clamping device is provided in the present embodiment, and the clamping mechanism in the present embodiment can be used to clamp the following clamping device.

The clamping device comprises a frame body and clamping bodies arranged on the frame body, wherein at least four clamping bodies are arranged on the frame body, each clamping body comprises a sliding seat with an inverted T-shaped linear sliding rail, the bottom of each sliding rod is provided with a sliding seat which is matched with the corresponding sliding rail and can slide along the corresponding sliding rail in a reciprocating manner, and the top end of each sliding rod is provided with a clamping part which can rotate relative to the sliding rod in a horizontal plane; the clamping part comprises a clamping cross rod, and the rear end of the clamping cross rod is hinged with the top end of the sliding rod, so that the clamping cross rod can rotate in the horizontal plane relative to the sliding rod; the clamping part also comprises an upper clamping piece which can move up and down and rotate in the horizontal plane relative to the clamping cross rod, and the upper clamping piece can be locked with the clamping cross rod. In this embodiment, the slide passes through locking mechanical system with the support body and locks each other, just the slide can carry out position control for the support body, like the picture, four clamp bodies all can correspond along the support body and rotate and carry out the angle modulation, according to the difference of part size shape, adjustable slide position carries out the cooperation of certain degree, locking mechanical system can adopt the mode of articulated elements locking straight notch to pair the locking, not only have rotation function, still can make the slide carry out certain extent for the support body and slide, more be suitable for the fixed of the great part of size. The front end of the clamping cross rod is a forward convergent frame piece; the front end of the upper clamping piece is converged forwards and is a clamping strip matched with the frame piece, and compared with a clamping part without convergence, the clamping part in the convergence state can be more suitable for clamping the clamping part without obvious protrusion or a pore-shaped part. The clamping cross rod is characterized in that an incompletely-penetrated cylindrical hole is formed in the upper plane of the clamping cross rod from top to bottom, a locking hole is formed in the lower end of the cylindrical hole, an inserting seat matched with the cylindrical hole is formed in the rear end of the upper clamping piece, a locking bolt penetrates through a bolt hole in the circle center of the inserting seat and is matched and locked with the locking hole, the upper clamping piece can slide up and down and is locked with the clamping cross rod, and by adopting the scheme, the rotation of the locking bolt is not greatly influenced in the rotation process of the upper clamping piece, the fixing of the locking bolt is not influenced in frequent fine adjustment of the upper clamping piece, and the clamping cross rod is suitable for fine adjustment action of parts difficult to clamp.

Of course, the present embodiment can also be used for clamping devices of other structures. The following description is not repeated herein, and the clamping mechanism according to the embodiment of the present application will be described.

Referring to fig. 1-3, the turning and clamping device for the mainline vehicle body part comprises a circular table 1 and a clamping mechanism, wherein the center of the top end of the outer wall of the circular table 1 is rotatably connected with the bottom end of a connecting column 32, and the top end of the connecting column 32 is fixedly connected with the center of the bottom end of the outer wall of a cavity plate 17;

clamping mechanism includes arc 10 down, arc 10 outer wall bottom fixed connection cavity board 17 outer wall top center department down, fixed block 15, two are fixed connection respectively on arc 10 outer wall left and right sides top down fixed block 15 respectively fixed block 15 rotates respectively to connect and runs through driven shaft 9 top, two driven shaft 9 top is fixed connection threaded rod 14 bottom respectively, two threaded rod 14 top is the screw-thread cup joints respectively in cavity axle 13 inner chamber bottom, two cavity axle 13 outer wall top is fixed connection roof 11 bottom left and right sides center department respectively, roof 11 bottom center department fixed connection goes up arc 12 outer wall top center department, two driven shaft 9 bottom rotates respectively to connect and runs through cavity board 17 top left and right sides, and two driven shaft 9 bottom is fixed cup joint third bevel gear 16 respectively.

The two third bevel gears 16 are respectively engaged with the fourth bevel gears 21, the two fourth bevel gears 21 are respectively fixedly sleeved on the outer walls of the driving shafts 18, the ends, far away from each other, of the two driving shafts 18 are respectively and rotatably connected with the centers of the left side and the right side of the inner wall of the cavity plate 17, the ends, close to each other, of the two driving shafts 18 are respectively and fixedly connected with the output ends of the double-shaft motor 8, the double-shaft motor 8 is fixedly sleeved on the inner wall of the cavity plate 17, the double-shaft motor 8 drives the two third bevel gears 16 to rotate, the centers of the left side and the right side of the bottom end of the outer wall of the cavity plate 17 are respectively and fixedly connected with the top ends of the sliding blocks 19, the two sliding blocks 19 are respectively and slidably sleeved in the inner cavity of the annular sliding chute 20, the annular sliding chute 20 is horizontally embedded at the top end of the outer wall of the circular truncated cone 1 to increase the stability of the rotating process of the cavity plate 17, the bottom ends of the connecting columns 32 are fixedly connected with the top ends of the rotating columns 2, and the centers of the bottom ends of the inner walls of the circular truncated cone 1 are rotatably connected with the circular truncated cone 1, the outer wall of the rotating column 2 is fixedly sleeved with a second bevel gear 4, the rotating second bevel gear 4 is driven to rotate by rotating the second bevel gear 4, the second bevel gear 4 is meshed with and matched with a first bevel gear 3, the first bevel gear 3 is fixedly sleeved at the left end of a rotating shaft 7, the right end of the rotating shaft 7 is rotatably connected and penetrates through the right side of the circular truncated cone 1, the center of one side of a turntable 6 is fixedly connected at the right end of the rotating shaft 7, the second bevel gear 4 is driven to rotate by rotating the turntable 6, the outer wall of the rotating shaft 7 is fixedly sleeved with a positioning gear 5, the positioning gear 5 is clamped at one end of a gear lock 31, the other end of the gear lock 31 is fixedly connected with the bottom end of one side of a connecting plate 27, the top end of the connecting plate 27 is fixedly connected with a pull ring 23, the connecting plate 27 is slidably sleeved at one side of the top end of the circular truncated cone 1, the upper part of the connecting plate 27 is slidably sleeved on the outer wall of a limiting rod 22, and the connecting plate 27 is driven to horizontally move by the pull ring 23, connecting plate 27 center department has inlayed connection magnetic path 24, connect magnetic path 24 left side and pass through magnetic connection left magnetic path 25, the 22 left ends of left magnetic path 25 top fixed connection gag lever post, connect the magnetic path 24 right side and pass through magnetic connection right magnetic path 30, the 30 top fixed connection gag lever post 22 right-hand members of right magnetic path make things convenient for the fixed of gear lock 31 position, the connecting plate 27 left and right sides is fixed connection fixture block 28 respectively, the left clamping block 28 joint left clamping groove 26 of connecting plate 27 left connection fixture block, the connection fixture block 28 joint right clamping groove 29 on connecting plate 27 right side increases the fixed effect of gear lock 31 position.

When the utility model is used, electrical components appearing in the application are externally connected with a power supply and a control switch when in use, parts to be processed are placed in an inner cavity of a lower arc-shaped plate 10, the double-shaft motor 8 drives a rotating shaft 7 to rotate by starting the double-shaft motor 8, the rotating shaft 7 drives a fourth bevel gear 21 to rotate, a third bevel gear 16 meshed with the fourth bevel gear 21 rotates along with the fourth bevel gear, the third bevel gear 16 drives a driven shaft 9 to rotate, the driven shaft 9 drives a threaded rod 14 to rotate, a cavity shaft 13 in threaded fit with the threaded rod 14 moves downwards, so that the two cavity shafts 13 are mutually matched to drive an upper arc-shaped plate 12 to move downwards, the connection of the upper arc-shaped plate 12 and the lower arc-shaped plate 10 is realized, the parts are conveniently clamped, and the parts are conveniently taken, through rotating a rotating disc 6, the rotating disc 6 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives a first bevel gear 3 to rotate, and a second bevel gear 4 meshed with the first bevel gear 3 rotates along with the second bevel gear 4, second bevel gear 4 drives rotation post 2 and rotates, rotation post 2 drives cavity board 17 through spliced pole 32 and rotates, cavity board 17 drives clamping mechanism and rotates, thereby realize the rotation to the part, the convenient welding position of adjusting the part, stimulate pull ring 23 left at appointed turned angle, make pull ring 23 drive connecting plate 27 move left, connecting plate 27 drives gear lock 31 chucking positioning gear 5, restriction positioning gear 5's rotation, thereby clamping mechanism's rotation has been restricted, connect magnetic path 24 and left magnetic path 25 simultaneously and pass through magnetic connection and connect magnetic path 24 and right magnetic path 30 and pass through magnetic connection, connect fixture block 28 and left draw-in groove 26 joint and connect fixture block 28 and right draw-in groove 29 joint, make connecting plate 27 drive gear lock 31 effectively fixed after moving the assigned position.

The application has the advantages that:

1. the connecting device is simple in operation, by starting the double-shaft motor, the double-shaft motor drives the rotating shaft to rotate, the rotating shaft drives the fourth bevel gear to rotate, the third bevel gear meshed with the fourth bevel gear rotates along with the rotating shaft, the third bevel gear drives the driven shaft to rotate, the driven shaft drives the threaded rod to rotate, and the cavity shaft in threaded fit with the threaded rod moves downwards, so that the two cavity shafts are mutually matched to drive the upper arc-shaped plate to move downwards, the connection of the upper arc-shaped plate and the lower arc-shaped plate is realized, the part is conveniently clamped, and the part is conveniently taken;

2. the structure of the utility model is reasonable, the rotating disc drives the rotating shaft to rotate by rotating the rotating disc, the rotating shaft drives the first bevel gear to rotate, a second bevel gear meshed and matched with the first bevel gear rotates along with the first bevel gear, the second bevel gear drives a rotating column to rotate, the rotating column drives a cavity plate to rotate through a connecting column, the cavity plate drives a clamping mechanism to rotate, so that the rotation of parts is realized, the welding position of the parts is convenient to adjust, the pull ring is pulled leftwards at the appointed rotation angle, so that the pull ring drives the connecting plate to move leftwards, the connecting plate drives the gear lock to tightly clamp the positioning gear to limit the rotation of the positioning gear, thereby restricted clamping mechanism's rotation, connect magnetic path and left magnetic path simultaneously and pass through magnetic connection and connect magnetic path and right magnetic path and pass through magnetic connection, connect fixture block and left draw-in groove joint and connect fixture block and right draw-in groove joint, make the connecting plate drive the gear lock and remove effective fixed after the assigned position.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a thread automobile body part upset clamping device which characterized in that: the clamping device comprises a circular table (1) and a clamping mechanism, wherein the center of the top end of the outer wall of the circular table (1) is rotatably connected with the bottom end of a connecting column (32), and the top end of the connecting column (32) is fixedly connected with the center of the bottom end of the outer wall of a cavity plate (17);

the clamping mechanism comprises a lower arc-shaped plate (10), the bottom end of the outer wall of the lower arc-shaped plate (10) is fixedly connected with the center of the top end of the outer wall of a cavity plate (17), the top ends of the left side and the right side of the outer wall of the lower arc-shaped plate (10) are respectively fixedly connected with a fixed block (15), the two fixed blocks (15) are respectively rotatably connected with and penetrate through the top end of a driven shaft (9), the top ends of the two driven shafts (9) are respectively fixedly connected with the bottom ends of threaded rods (14), the top ends of the two threaded rods (14) are respectively in threaded sleeve joint with the bottom end of an inner cavity of a cavity shaft (13), the top ends of the outer walls of the two cavity shafts (13) are respectively fixedly connected with the centers of the left side and the right side of the bottom end of a top plate (11), the center of the bottom end of the top plate (11) is fixedly connected with the center of the top end of the outer wall of an upper arc-shaped plate (12), and the bottom ends of the two driven shafts (9) are respectively rotatably connected with and penetrate through the left side and the right side of the top end of the cavity plate (17), and the bottom ends of the two driven shafts (9) are respectively and fixedly sleeved with a third bevel gear (16).

2. The main line body part overturning clamping device of claim 1, wherein: the two third bevel gears (16) are respectively meshed with fourth bevel gears (21), the four fourth bevel gears (21) are respectively fixedly sleeved on the outer wall of the driving shaft (18), one ends, far away from the driving shaft (18), of the driving shafts are respectively rotatably connected with the centers of the left side and the right side of the inner wall of the cavity plate (17), one ends, close to the driving shafts (18), of the driving shafts are respectively fixedly connected with the output end of a double-shaft motor (8), and the double-shaft motor (8) is fixedly sleeved on the inner wall of the cavity plate (17).

3. The main line body part overturning clamping device of claim 1, wherein: the center of the left side and the right side of the bottom end of the outer wall of the cavity plate (17) is fixedly connected with the top ends of the sliding blocks (19), the sliding blocks (19) are respectively sleeved in the inner cavity of the annular sliding groove (20) in a sliding mode, and the annular sliding groove (20) is horizontally embedded at the top end of the outer wall of the circular truncated cone (1).

4. The main line body part overturning clamping device of claim 1, wherein: spliced pole (32) bottom fixed connection rotates post (2) top, it rotates to rotate post (2) bottom and connects round platform (1) inner wall bottom center department, it cup joints second bevel gear (4) to rotate post (2) outer wall fixed.

5. The main line body part flip clamp device of claim 4, wherein: second bevel gear (4) meshing cooperation first bevel gear (3), first bevel gear (3) are fixed to be cup jointed at pivot (7) left end, pivot (7) right-hand member rotates to be connected and runs through round platform (1) right side, just pivot (7) right-hand member fixed connection carousel (6) one side center department.

6. The main line body part flip clamp device of claim 5, wherein: fixed cup jointing of pivot (7) outer wall has positioning gear (5), positioning gear (5) joint gear lock (31) one end, gear lock (31) other end fixed connection connecting plate (27) one side bottom, connecting plate (27) top fixed connection pull ring (23), connecting plate (27) slip cup joint in round platform (1) top one side, just connecting plate (27) top slip cup joint at gag lever post (22) outer wall.

7. The main line body part flip clamp device of claim 6, wherein: connecting magnetic block (24) is embedded in the center of connecting plate (27), left magnetic block (25) is connected to the left side of connecting magnetic block (24) through magnetic force, the left end of limiting rod (22) is fixedly connected to the top end of left magnetic block (25), right magnetic block (30) is connected to the right side of connecting magnetic block (24) through magnetic force, and the right end of limiting rod (22) is fixedly connected to the top end of right magnetic block (30).

8. The main line body part flip clamp device of claim 6, wherein: the left side and the right side of the connecting plate (27) are respectively fixedly connected with a connecting clamping block (28), the left connecting clamping block (28) of the connecting plate (27) is connected with a left clamping groove (26) in a clamping mode, and the right connecting clamping block (28) on the right side of the connecting plate (27) is connected with a right clamping groove (29) in a clamping mode.