CN220881177U - Portable rail posture adjusting device - Google Patents

Abstract

The utility model discloses a portable steel rail posture adjusting device which comprises a fixed base component, wherein the fixed base component is fixed on a sleeper through a rail locking component, a transverse moving base component which transversely slides is arranged on the fixed base component, a transverse moving adjusting component is arranged between the fixed base component and the transverse moving base component, a swinging base component which swings left and right is arranged on the fixed base component, a swinging adjusting component is arranged between the fixed base component and the swinging base component, and a quick pressing plate component is arranged on the swinging base component. The utility model has the beneficial effects that: the device is characterized in that the fixed base component is fixed on the sleeper through the rail locking component, the steel rail is pressed and fixed on the swing base component through the quick pressing plate component, the approximate position of the steel rail is determined through the fixation of two positions, then the steel rail is horizontally driven to displace through the transverse movement adjusting component, and the steel rail is driven to rotate and incline around the swing rotating point by the rotation swing adjusting component, so that the section of the steel rail reaches the required correct posture.

Description

Portable rail posture adjusting device

Technical Field

The utility model belongs to steel rail construction equipment, and particularly relates to a portable steel rail posture adjusting device.

Background

When the steel rail is welded on site at present, as the welding machine clamps the steel rail and a certain distance is left at the bottom of the steel rail, the steel rail fastener needs to be loosened and the steel rail at the welded junction is lifted. The common method for the prior pad rail is to use a crow bar and a track jack to jack up the steel rail, and then use a sleeper or fix the sleeper on a fixed pad rail device. When the height and angle of the steel rail are adjusted, cushion blocks and the like are needed to be arranged below the steel rail, so that the problems of low precision, high labor intensity, low efficiency and the like exist, the steel rail is often adjusted to a required posture, a large amount of cushion rail time is needed, and the welding operation time of the railway steel rail is delayed. Therefore, a mechanical device is needed to be provided on site, the structural function of the device is utilized to adjust the rail posture, the vertical, horizontal and angle adjustment of the rail is rapidly completed, and the requirements of light weight and simple operation are met.

Disclosure of utility model

The utility model aims at: the portable steel rail posture adjusting device solves the problem that the existing steel rail adjusting mode is labor-consuming.

The aim of the utility model is achieved by the following technical scheme:

The utility model provides a portable rail gesture adjusting device, includes fixed base subassembly, and fixed base subassembly passes through the lock rail subassembly to be fixed on the sleeper, is equipped with the sideslip base subassembly that transversely slides on the fixed base subassembly, is equipped with sideslip adjustment subassembly between fixed base subassembly and the sideslip base subassembly, is equipped with the swing base subassembly of horizontal hunting on the fixed base subassembly, is equipped with the swing adjustment subassembly between fixed base subassembly and the swing base subassembly, is equipped with quick platen subassembly on the swing base subassembly.

Further, the swing adjusting assembly comprises a swing block, a swing pin, a swing screw, a swing nut, a clamping pin, a hook and a clamping hole, wherein the swing block is hinged with the swing adjusting hole of the transverse moving base assembly through the swing pin, the swing block is rotationally clamped with the swing screw to be connected, the swing screw is connected with the swing nut in a threaded manner, the clamping pin is arranged on the swing nut, the hook is fixed on the swing base assembly, and the clamping pin is positioned in the clamping hole of the hook.

Further, sideslip base subassembly include sideslip seat, stopper, swing mounting hole, swing regulation hole and sideslip mounting panel, the sideslip seat is upper shed U shaped plate structure, the swing mounting hole at sideslip seat middle part is articulated with the swing base subassembly, the swing regulation hole of sideslip seat one end is connected with the swing regulation subassembly, the sideslip mounting panel of sideslip seat other end is connected with the sideslip adjustment subassembly, the stopper is connected to the bottom of sideslip seat, stopper lateral sliding establishes in the sideslip hole of fixed base subassembly.

Further, fixed base subassembly include fixing base, fixed plate, sideslip hole and mount pad, the fixed plate of fixing base lower part passes through lock rail subassembly to be fixed on the sleeper, sideslip base subassembly transversely slides and establishes in the sideslip hole on fixing base upper portion, sideslip adjustment subassembly is fixed on the mount pad on fixing base upper portion.

Further, the rail locking assembly comprises an underground screw sleeve and a rail locking bolt, the underground screw sleeve is buried on the sleeper, the rail locking bolt is in threaded connection with the underground screw sleeve, and the rail locking bolt compresses the fixed base assembly on the sleeper.

Further, both sides of the steel rail are provided with quick pressing plate assemblies.

Further, quick clamp plate subassembly include clamp plate seat, clamp plate screw, rotatory clamp plate, spacing order and limiting plate, the clamp plate seat is fixed on swing base subassembly, clamp plate screw fixes on the clamp plate seat, threaded connection has rotatory clamp plate on the clamp plate screw, rotatory clamp plate is equipped with spacing order on the clamp plate seat between pressure rail position and leaving the rail position, the limiting plate 65 on the rotatory clamp plate cooperates with the both ends face spacing of spacing order spacing in order to form pressure rail position and leaving the rail position.

Further, the swing base component comprises a swing seat, rollers, a swing hole and a swing shaft, wherein the swing seat is of a U-shaped plate structure with a lower opening, the rollers for supporting steel rails are arranged in the middle of the swing seat, and the swing hole in the middle of the swing seat is hinged with the transverse moving base component through the swing shaft.

Further, the device also comprises a compression cam assembly, wherein the compression cam assembly comprises a cam and a spanner, a swinging hole of the swinging base assembly is hinged with a swinging installation hole of the traversing base assembly through a swinging shaft, the swinging hole is a slotted hole, the end part of the swinging shaft is provided with the spanner, and the swinging shaft is provided with a cam for propping up the swinging base assembly.

Further, sideslip adjustment subassembly include sideslip screw rod, handle, nut seat and rotatory card end, the one end of sideslip screw rod is the handle, the middle part and the nut seat threaded connection of sideslip screw rod, the nut seat is fixed on fixed base subassembly, the rotatory card of rotatory card end of sideslip screw rod other end is established on sideslip base subassembly.

The utility model realizes the following functions: the steel rail is clamped and fixed through the quick pressing plate assembly, and then the position and the inclination angle of the swing base assembly are adjusted, so that the position and the posture of the steel rail are adjusted. Specifically, fix fixed base subassembly on the sleeper through lock rail subassembly, sideslip base subassembly is installed on fixed base subassembly, and swing base subassembly is installed on sideslip base subassembly, and sideslip base subassembly is connected with swing base subassembly by the round pin axle of swing rotation point department. When the rail transverse cross section horizontal direction origin is driven to align with a target origin (the origin is the intersection point of the horizontal bottom surface of the rail and a vertical central axis) during translation, then the swing base assembly rotates and inclines around a swing rotating point through the swing adjusting assembly, so that the rail posture is straightened.

The utility model has the beneficial effects that: the device is characterized in that a fixed base assembly is fixed on a sleeper through a rail locking assembly, a steel rail is pressed and fixed on a swinging base assembly through a quick pressing plate assembly, the approximate position of the steel rail is determined through the fixation of two positions, the phenomenon that the steel rail is not limited and disturbed when the posture is adjusted is prevented, then the steel rail is horizontally driven to displace through a transverse movement adjusting assembly, and the steel rail is driven to rotate and incline around a swinging rotating point by a rotating and swinging adjusting assembly, so that the section of the steel rail reaches the required correct posture.

The foregoing inventive subject matter and various further alternatives thereof may be freely combined to form a plurality of alternatives, all of which are employable and claimed herein; and the utility model may be freely combined between choices (of non-conflicting choices) and with other choices as well. Various combinations will be apparent to those skilled in the art from a review of the present disclosure, and are not intended to be exhaustive or to limit the utility model to the precise forms disclosed.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a structural exploded view of the present utility model.

FIG. 3 is a schematic view of a stationary base assembly of the present utility model.

FIG. 4 is a schematic view of the clamping of the instant utility model rapid platen assembly.

FIG. 5 is a traversing schematic view of a traversing base assembly of the present utility model.

Fig. 6 is a swing schematic view of the swing base assembly of the present utility model.

Fig. 7 is a schematic view of a pinch cam assembly of the present utility model in a relaxed state.

In the figure: 1-swinging base components, 2-traversing base components, 3-fixed base components, 4-rail locking components, 5-steel rails, 6-quick pressing plate components, 7-swinging base components, 8-pressing cam components, 9-traversing adjusting components and 10-sleeper components; 11-swinging blocks, 12-swinging pins, 13-swinging screws, 14-swinging nuts, 15-clamping pins, 16-hooks and 17-clamping holes; 21-of a transverse moving seat, 22-of a limiting block, 23-of a swinging installation hole, 24-of a swinging adjustment hole and 25-of a transverse moving installation plate; 31-fixing seats, 32-fixing plates, 33-transverse moving holes and 34-mounting seats; 41-buried threaded sleeves and 42-rail locking bolts; 61-of a pressing plate seat, 62-of a pressing plate screw, 63-of a rotary pressing plate, 64-of a limiting step and 65-of a limiting plate; 71-swinging seats, 72-rollers, 73-swinging holes and 74-swinging shafts; 81-cam, 82-wrench; 91-a traversing screw rod, 92-a handle, 93-a nut seat and 94-a rotary clamping end.

Detailed Description

The utility model will be further described with reference to specific examples and figures.

Referring to fig. 1 to 7, a portable rail posture adjusting device comprises a swing adjusting assembly 1, a traversing base assembly 2, a fixed base assembly 3, a rail locking assembly 4, a rail 5, a quick platen assembly 6, a swing base assembly 7, a compression cam assembly 8, a traversing adjusting assembly 9 and a sleeper 10.

The fixed base component 3 is fixed on the sleeper 10 through the rail locking component 4, and the sleeper 10 is used for supporting and positioning the fixed base component 3.

The fixed base assembly 3 is provided with a transverse moving base assembly 2 which transversely slides, a transverse moving adjusting assembly 9 is arranged between the fixed base assembly 3 and the transverse moving base assembly 2, the fixed base assembly 3 provides a foundation for transverse moving installation of the transverse moving base assembly 2, and transverse moving driving force is provided by the transverse moving adjusting assembly 9, so that left-right adjustment of the horizontal position of the steel rail is realized.

The fixed base component 3 is provided with a swinging base component 7 swinging left and right, a swinging adjusting component 1 is arranged between the fixed base component 3 and the swinging base component 7, the fixed base component 3 provides a foundation for swinging and rotating installation of the swinging base component 7, and the swinging adjusting component 1 is utilized to provide a driving force for rotating and swinging so as to adjust the inclination angle of the steel rail.

The quick-press plate assembly 6 is arranged on the swing base assembly 7, the swing base assembly 7 provides mounting contact for the quick-press plate assembly 6, and the steel rail 5 is pressed and fixed on the swing base assembly 7 by the quick-press plate assembly 6. The pressing cam component 8 is used for adjusting the pressing or loosening between the traversing base component 2 and the swinging base component 7, and the swinging base component 7 is conveniently separated from the steel rail 5 after the rail is aligned.

The swing adjusting assembly 1 comprises a swing block 11, a swing pin 12, a swing screw 13, a swing nut 14, a clamping pin 15, a hook 16 and a clamping hole 17. The swing pin 12 integrally connected with the lower part of the swing block 11 is hinged with the swing adjusting hole 24 at the left end of the sideslip base assembly 2, the upper part of the swing block 11 is rotatably clamped and connected with the swing screw 13, the swing screw 13 is connected with the swing nut 14 in a threaded manner, the middle part of the swing nut 14 is provided with the integrally connected clamping pin 15, the hook 16 is welded and fixed on the left end of the swing seat 71 of the swing base assembly 7, and the clamping pin 15 is positioned in the clamping hole 17 of the hook 16.

When the swinging base assembly 7 is adjusted in a swinging way, the swinging block 11 and the swinging screw rod 13 are rotated first, so that the clamping pin 15 of the swinging nut 14 is clamped in the clamping hole 17 of the hook 16, and interaction between the swinging base assembly 7 and the traversing base assembly 2 is realized. By rotating the swing screw 13 and adjusting the position of the swing nut 14 on the swing screw 13, the swing nut 14 moves up and down, the clamping pin 15 pushes up or down the clamping hole 17, and the hook 16 drives the left end of the swing base assembly 7 to move, so that the swing rotation of the swing base assembly 7 is realized.

The traversing base assembly 2 comprises a traversing seat 21, a limiting block 22, a swinging mounting hole 23, a swinging adjusting hole 24 and a traversing mounting plate 25. The traversing seat 21 is a U-shaped plate structure with an upper opening, and can realize the installation of the swinging base assembly 7 in the interior. The bottom of the transverse moving seat 21 is connected with two limiting blocks 22, the limiting blocks 22 are transversely arranged in the transverse moving holes 33 of the fixed base assembly 3 in a sliding mode, and the limiting blocks 22 are used for guiding the transverse sliding of the transverse moving seat 21. The swing mounting hole 23 in the middle of the traverse base 21 is hinged with the swing hole 73 in the middle of the swing base 71 of the swing base assembly 7, the swing adjusting hole 24 at the left end of the traverse base 21 is connected with the swing block 11 of the swing adjusting assembly 1, and the traverse mounting plate 25 at the right end of the traverse base 21 is connected with the rotation clamping end 94 of the traverse adjusting assembly 9.

The fixed base assembly 3 includes a fixed base 31, a fixed plate 32, a traversing hole 33, and a mount 34. The fixed plate 32 welded on the two sides of the lower part of the fixed seat 31 is fixed on the sleeper 10 through the rail locking assembly 4, and the rail locking assembly 4 presses the fixed plate 32, so that the fixed base assembly 3 is pressed on the sleeper 10. The limiting block 22 of the transverse moving base assembly 2 is transversely arranged in the transverse moving hole 33 at the upper part of the fixed seat 31 in a sliding manner, so that the transverse moving function of the transverse moving base assembly 2 is met, and the clamping of the transverse moving base assembly 2 on the fixed base assembly 3 is realized. The lateral movement adjusting assembly 9 is fixed on a mounting seat 34 at the upper part of the fixed seat 31 to provide a force application point of the lateral movement adjusting assembly 9.

The rail locking assembly 4 comprises an underground screw sleeve 41 and a rail locking bolt 42, the underground screw sleeve 41 is embedded on the sleeper 10, the rail locking bolt 42 is in threaded connection with the underground screw sleeve 41, the rail locking bolt 42 is pressed on the fixing plate 32, and the fixing base assembly 3 is integrally pressed on the sleeper 10.

The two sides of the steel rail 5 are provided with quick pressing plate assemblies 6, the two sides of the steel rail 5 are pressed by the quick pressing plate assemblies 6 on the two sides, and the quick pressing plate assemblies 6 on the two sides have the function of alignment and positioning.

The quick platen assembly 6 includes a platen base 61, a platen screw 62, a rotating platen 63, a limiting step 64, and a limiting plate 65. The pressing plate seat 61 is welded and fixed on the swinging seat 71 of the swinging base assembly 7, the pressing plate screw 62 is vertically fixed on the pressing plate seat 61, and the pressing plate screw 62 is in threaded connection with the rotary pressing plate 63.

The rotating pressing plate 63 moves between the rail pressing position and the off-rail position, and when the rotating pressing plate 63 rotates from the off-rail position to the rail pressing position, the height of the rotating pressing plate 63 gradually decreases, so that the steel rail 5 is ensured to be pressed down. The pressing plate seat 61 is provided with a semi-annular limiting step 64, and the limiting plates 65 on the rotating pressing plate 63 are in limiting fit with the two end surfaces of the limiting step 64 to form a pressing rail position and a separating rail position, namely, when the rotating pressing plate 63 is located at the pressing rail position or the separating rail position, the limiting plates 65 are attached to the two end surfaces of the limiting step 64, so that the rotating pressing plate 63 cannot continuously rotate along the original direction.

The swing base assembly 7 includes a swing seat 71, a roller 72, a swing hole 73, and a swing shaft 74. The swing seat 71 has a U-shaped plate structure with a lower opening. The middle part of the swinging seat 71 is provided with two rollers 72 for supporting the steel rail 5, and when the steel rail 5 enters the swinging seat 71 along the front-back direction, the rollers 72 roll and support the steel rail 5 so as to reduce friction. The swing hole 73 in the middle of the swing seat 71 is hinged to the swing mounting hole 23 of the traverse base assembly 2 through a swing shaft 74, so that the swing seat 71 swings left and right with the middle.

The pressing cam assembly 8 comprises a cam 81 and a spanner 82, the swinging hole 73 of the swinging base assembly 7 is hinged with the swinging installation hole 23 of the traversing base assembly 2 through a swinging shaft 74, the swinging hole 73 is a slotted hole, the end part of the swinging shaft 74 is provided with the spanner 82, and the swinging shaft 74 is provided with the cam 81 for propping up the swinging base assembly 7.

In the rail aligning operation, the convex portion of the cam 81 presses the lower end of the swing seat 71, so that the swing seat 71 and the traverse seat 21 are supported tightly, and the swing shaft 74 is positioned at the lowermost end of the swing hole 73. After the rail alignment operation is completed, the rail 5 has been welded to the target rail as a whole, and the entire weight is increased to press the swinging seat 71, and the entire device cannot be taken out even if the quick platen assembly 6 is released. At this time, the pressing cam assembly 8 needs to be adjusted, the swinging shaft 74 is rotated to drive the cam 81 to rotate from the pressing position (convex part) to the releasing position (flat part), so that the swinging seat 71 descends and is separated from contact with the bottom surface of the steel rail, at this time, the swinging shaft 74 is positioned at the upper end of the swinging hole 73, and the downward pressing deformation displacement generated after the supporting force of the bottom surface of the steel rail is released is smaller than the descending displacement of the swinging seat 71.

The traverse adjustment assembly 9 includes a traverse screw 91, a handle 92, a nut seat 93, and a rotation clamp 94. The right end of the traversing screw 91 is provided with a handle 92, and the handle 92 is operated to conveniently rotate the traversing screw 91. The middle part of the traversing screw 91 is in threaded connection with the nut seat 93, and the nut seat 93 is fixed on the mounting seat 34 of the fixed base assembly 3, so that when the traversing screw 91 rotates, the traversing screw 91 and the nut seat 93 move mutually. The rotating clamping end 94 at the left end of the traverse screw 91 is rotatably clamped on the traverse mounting plate 25 of the traverse base assembly 2, and the nut seats 93 are fixed differently, so that the traverse base assembly 2 is pushed to laterally traverse.

The working flow of the utility model is as follows:

and (3) fixing a base: the fixed base assembly 3 is secured to the sleeper 10 by a lock rail assembly 4.

Clamping and positioning: the initial quick platen assembly 6 is in the release position, the rail 5 is fed into the swing base assembly 7 under the assistance of the feed rollers, and the quick platen assembly 6 is rotated to compress the rail 5.

And (3) transversely moving and aligning: the handle 92 at the right end of the traversing screw 91 is rotated to enable the traversing seat 21 to slide left and right, thereby driving the steel rail fixed on the swinging seat to move and realizing horizontal alignment.

And (3) inclination adjustment: the swinging screw 13 is rotated to enable the swinging nut 14 to move up and down, the hook 16 arranged on the swinging seat 71 is driven to drag the swinging seat 71 to rotate around the swinging rotation point, and the steel rail is fixed on the swinging seat 71, so that the adjustment of the position and the posture of the steel rail is realized.

The foregoing basic embodiments of the utility model, as well as other embodiments of the utility model, can be freely combined to form numerous embodiments, all of which are contemplated and claimed. In the scheme of the utility model, each selection example can be arbitrarily combined with any other basic example and selection example.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A portable rail attitude adjustment device comprising a fixed base assembly (3), characterized in that: fixed base subassembly (3) fix on sleeper (10) through lock rail subassembly (4), be equipped with sideslip base subassembly (2) of horizontal slip on fixed base subassembly (3), be equipped with sideslip adjustment subassembly (9) between fixed base subassembly (3) and sideslip base subassembly (2), be equipped with on fixed base subassembly (3) about wobbling swing base subassembly (7), be equipped with swing adjustment subassembly (1) between fixed base subassembly (3) and swing base subassembly (7), be equipped with quick platen subassembly (6) on swing base subassembly (7).

2. The portable rail posture adjustment device of claim 1, wherein: the swinging adjusting component (1) comprises a swinging block (11), a swinging pin (12), a swinging screw rod (13), a swinging nut (14), a clamping pin (15), a hook (16) and a clamping hole (17), wherein the swinging block (11) is hinged with a swinging adjusting hole (24) of the transverse moving base component (2) through the swinging pin (12), the swinging block (11) is rotatably clamped and connected with the swinging screw rod (13), the swinging screw rod (13) is connected with the swinging nut (14) in a threaded manner,

The swing nut (14) is provided with a clamping pin (15), the hook (16) is fixed on the swing base assembly (7), and the clamping pin (15) is positioned in a clamping hole (17) of the hook (16).

3. The portable rail posture adjustment device of claim 1, wherein: sideslip base subassembly (2) include sideslip seat (21), stopper (22), swing mounting hole (23), swing regulation hole (24) and sideslip mounting panel (25), sideslip seat (21) are the U-shaped plate structure of upper shed, swing mounting hole (23) at sideslip seat (21) middle part are articulated with swing base subassembly (7), swing regulation hole (24) of sideslip seat (21) one end are connected with swing regulation subassembly (1), sideslip mounting panel (25) and sideslip adjustment subassembly (9) of sideslip seat (21) other end are connected stopper (22), stopper (22) transversely slide and establish in sideslip hole (33) of fixed base subassembly (3).

4. The portable rail posture adjustment device of claim 1, wherein: the fixed base component (3) comprises a fixed seat (31), a fixed plate (32), a transverse moving hole (33) and a mounting seat (34), wherein the fixed plate (32) at the lower part of the fixed seat (31) is fixed on the sleeper (10) through a rail locking component (4), the transverse moving base component (2) is transversely arranged in the transverse moving hole (33) at the upper part of the fixed seat (31) in a sliding way, and the transverse moving adjusting component (9) is fixed on the mounting seat (34) at the upper part of the fixed seat (31).

5. The portable rail posture adjustment device of claim 1, wherein: the rail locking assembly (4) comprises an underground screw sleeve (41) and a rail locking bolt (42), the underground screw sleeve (41) is buried on the sleeper (10), the rail locking bolt (42) is in threaded connection with the underground screw sleeve (41), and the rail locking bolt (42) tightly presses the fixed base assembly (3) on the sleeper (10).

6. The portable rail posture adjustment device of claim 1, wherein: both sides of the steel rail (5) are provided with quick pressing plate assemblies (6).

7. The portable rail posture adjustment device of claim 1 or 6, characterized in that: the quick clamp plate subassembly (6) include clamp plate seat (61), clamp plate screw (62), rotatory clamp plate (63), spacing order (64) and limiting plate (65), clamp plate seat (61) are fixed on swing base subassembly (7), clamp plate screw (62) are fixed on clamp plate seat (61), threaded connection has rotatory clamp plate (63) on clamp plate screw (62), rotatory clamp plate (63) are in pressing the rail position and are moved from the rail position, are equipped with spacing order (64) on clamp plate seat (61), spacing plate 65 on rotatory clamp plate (63) are spacing cooperation with the both ends face of spacing order (64) in order to form pressing the rail position and leave the rail position.

8. The portable rail posture adjustment device of claim 1, wherein: the swinging base assembly (7) comprises a swinging seat (71), rollers (72), swinging holes (73) and a swinging shaft (74), the swinging seat (71) is of a U-shaped plate structure with a lower opening, the rollers (72) for supporting steel rails (5) are arranged in the middle of the swinging seat (71), and the swinging holes (73) in the middle of the swinging seat (71) are hinged with the transversely-moving base assembly (2) through the swinging shaft (74).

9. The portable rail posture adjustment device of claim 1, wherein: still include compressing tightly cam subassembly (8), compressing tightly cam subassembly (8) include cam (81) and spanner (82), and swing hole (73) of swing base subassembly (7) are articulated with swing mounting hole (23) of sideslip base subassembly (2) through oscillating axle (74), and swing hole (73) are the slotted hole, and the tip of oscillating axle (74) is equipped with spanner (82), is equipped with cam (81) of top support swing base subassembly (7) on oscillating axle (74).

10. The portable rail posture adjustment device of claim 1, wherein: the transverse moving adjusting assembly (9) comprises a transverse moving screw rod (91), a handle (92), a nut seat (93) and a rotary clamping end (94), wherein one end of the transverse moving screw rod (91) is the handle (92), the middle part of the transverse moving screw rod (91) is in threaded connection with the nut seat (93), the nut seat (93) is fixed on the fixed base assembly (3), and the rotary clamping end (94) at the other end of the transverse moving screw rod (91) is rotationally clamped on the transverse moving base assembly (2).