CN107900589B - Welding fixture for double-splicing of tensioning frame at lower part of automatic sidewalk - Google Patents
Welding fixture for double-splicing of tensioning frame at lower part of automatic sidewalk Download PDFInfo
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- CN107900589B CN107900589B CN201711323503.2A CN201711323503A CN107900589B CN 107900589 B CN107900589 B CN 107900589B CN 201711323503 A CN201711323503 A CN 201711323503A CN 107900589 B CN107900589 B CN 107900589B
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- 238000003466 welding Methods 0.000 title claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 40
- 230000000712 assembly Effects 0.000 claims description 16
- 238000000429 assembly Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 230000000670 limiting effect Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Assembly (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses a double-splicing welding tool for a tensioning frame at the lower part of a moving walk, which comprises a base and is further provided with: two left tensioning frame positioning seats fixed on the base side by side, wherein each left tensioning frame positioning seat is provided with a clamping mechanism respectively, and the two left tensioning frame positioning seats respectively clamp two side edge parts of the left tensioning frame in the horizontal direction; a movable cross beam which reciprocates on the base through a travelling wheel assembly; two right tensioning frame positioning seats fixed on the movable cross beam side by side, wherein each right tensioning frame positioning seat is provided with a clamping mechanism respectively, and the two right tensioning frame positioning seats respectively clamp two side edge parts of the right tensioning frame in the horizontal direction; and the axial positioning assembly is fixed on the base and matched with a tensioning shaft penetrating between the left tensioning frame and the right tensioning frame. The welding fixture can ensure that the left tensioning frame and the right tensioning frame are synchronous and consistent in double splicing and parallel to each other, improves the axial position precision of the tensioning shaft, improves the processing efficiency and quality, and ensures the safety and the comfort of riding a ladder.
Description
Technical Field
The invention relates to the technical field of automatic pavement manufacturing, in particular to a double-splicing welding tool for a tensioning frame at the lower part of an automatic pavement.
Background
The upper and lower track components of the travelator are used as key components of the escalator, the manufacturing and assembling precision of the upper and lower track components is one of important factors for ensuring the running safety and comfort of the travelator, and the precision of the lower tensioning frame component of the travelator comprises the precision of a single-piece component track and the consistency of left and right piece component tracks. The synchronization consistency of the double-spliced connection of the left and right piece tensioning frame components is directly related to the left and right synchronization and consistency of the step chains and steps of the travelator.
Disclosure of Invention
The invention provides a double-splicing welding tool for tensioning frames at the lower part of a moving walk, which realizes the positioning compaction of the two tensioning frames and the positioning of a tensioning shaft and is convenient for subsequent welding formation.
The utility model provides a welding frock is pieced together to automatic pavement lower part tensioning frame double, includes the base, its characterized in that still is equipped with:
two sets of left tensioning frame positioning and compressing assemblies fixed on the base, wherein each set of left tensioning frame positioning and compressing assembly respectively clamps two side edge parts of the left tensioning frame in the horizontal direction;
a movable cross beam which reciprocates on the base through a travelling wheel assembly;
two sets of right tensioning frame positioning and pressing assemblies fixed on the movable cross beam, wherein each set of right tensioning frame positioning and pressing assembly respectively clamps two side edge parts of the right tensioning frame in the horizontal direction;
and the axial positioning assembly is fixed on the base and matched with a tensioning shaft penetrating between the left tensioning frame and the right tensioning frame.
The left and right are relative concepts and do not emphasize the absolute position relation, and because the tensioning frames at the lower part of the moving sidewalk are spliced by two tensioning frames which are oppositely arranged and tensioning shafts connected between the two tensioning frames, one tensioning frame serves as a left tensioning frame, the other tensioning frame serves as a right tensioning frame correspondingly, each tensioning frame is of a plate-shaped structure, a plurality of positioning holes are formed in the upper surface and are used for being matched with a clamping mechanism of a welding tool, and guide rails matched with steps or step chains are welded on each tensioning frame.
The left tensioning frame positioning seat is fixedly arranged in the welding tool, and the right tensioning frame positioning seat can be adjusted to be opposite to the left tensioning frame positioning seat through the movable cross beam so as to adapt to different gear opening distances of the left tensioning frame and the right tensioning frame, and the double-spliced welding of the lower tensioning frames with different width specifications of 1000mm, 800mm and the like of the travelator is realized.
Preferably, the base is fixedly provided with a heightening seat, and the two sets of left tensioning frames are positioned and pressed on the assemblies and the axial positioning assemblies are arranged on the heightening seat.
The position of the relevant part can be lifted by the heightening seat, and the relevant part is matched with two sets of right tensioning frame positioning and pressing assemblies positioned on the movable cross beam.
Preferably, the axial positioning assembly comprises:
the positioning seat is fixed on the heightening seat;
the positioning screw rod is in threaded fit with the positioning seat and is in abutting fit with the axial end face of the tensioning shaft;
the lock nut is sleeved on the positioning screw rod and propped against the positioning seat.
In order to facilitate the processing of the screw thread matched with the positioning screw rod on the positioning seat, an insert can be welded at the corresponding position of the positioning seat so as to obtain a screw hole with enough depth to avoid the whole thickening of the size of the positioning column.
Preferably, the base is provided with two tracks which are arranged in parallel, the extending direction of each track is parallel to the arrangement direction of the tensioning shaft, the two sets of travelling wheel assemblies are respectively in rolling fit on the corresponding track, and the movable cross beam is erected between the two sets of travelling wheel assemblies.
Preferably, the top surface of the rail is provided with a guide rib or a guide groove, and the traveling wheel assembly is provided with a traveling wheel with an outer edge shape which is complementary and limited with the guide rib or the guide groove.
For example, the top surface of the track is trapezoid or inverted V-shaped and is matched with the outer edge of the travelling wheel, and the track and the travelling wheel can be automatically positioned to prevent the track from shifting or swaying to two sides in the travelling process.
Preferably, a limiting piece for limiting the walking limit position of the walking wheel assembly is arranged at the corresponding position of the track. For example, the front and rear ends of the rail are provided with a stop for preventing the running wheel from running over.
Preferably, the travelling wheel assembly comprises:
a wheel carrier;
the travelling wheel is rotatably arranged at the bottom of the travelling wheel frame;
a guide piece fixed at the top of the wheel carrier;
the movable cross beam is fixedly arranged on the lifting seat;
and the driving piece drives the lifting seat to move up and down along the guide block.
The movable cross beam is generally placed on the base through screws when in work, if the position needs to be adjusted, the screws are loosened firstly, the movable cross beam is jacked up through the driving piece so as to be convenient to move, and in addition, the height can be adjusted relative to the travelling wheel frame so as to adapt to different requirements.
Preferably, the guide piece is a guide block, and the bottom of the lifting seat is provided with a guide groove which is sleeved on the guide block in a sliding way.
The simple guide block is adopted to bear larger load, and the lifting seat can be of an integral structure or a split structure, and the guide groove is formed by enclosing in the form of a plate or a section bar.
Preferably, the driving piece is an adjusting screw penetrating through the top wall of the guide groove, the adjusting screw is in threaded fit with the lifting seat, one end of the adjusting screw is an adjusting head positioned outside the lifting seat, and the other end of the adjusting screw abuts against the top surface of the guide block in the guide groove.
The adjusting head is pulled, namely the adjusting screw is rotated, so that the relative high and low positions of the lifting seat and the wheel carrier can be changed, and the screw mode is adopted, thereby being more beneficial to fine adjustment and load bearing.
Preferably, each set of left tensioning frame positioning and pressing assembly and each set of right tensioning frame positioning and pressing assembly comprise a supporting frame, two groups of clamps are arranged on the supporting frame from top to bottom, and each group of clamps corresponds to one positioning hole on the left tensioning frame or the right tensioning frame;
each group of clamp comprises a positioning clamp and a pressing clamp which are matched with each other, wherein the pressing clamp is provided with a pressing head which is positioned at one side of the positioning hole and is abutted against the left tensioning frame or the right tensioning frame; and the positioning clamp is provided with a positioning pin which is positioned at the other side of the positioning hole and penetrates through the positioning hole to be matched with the pressing head.
In the invention, a group of clamps are arranged for a certain positioning hole, and the positioning is realized by the mutual matching of the positioning clamps and the pressing clamps which are positioned at the two sides of the positioning hole.
Preferably, the positioning clamp includes:
the positioning pin is slidably mounted on the support frame;
a wrench hinged on the support frame;
and the transmission mechanism is connected between the wrench and the locating pin.
In order to limit the movement path of the positioning pin, a guide sleeve is preferably further provided on the support frame, in which guide sleeve the positioning pin is inserted in a sliding manner.
Preferably, the front end of the positioning pin is provided with a step matched with the inner edge of the positioning hole. The positioning effect can be further improved, and the axial compression limiting effect can be achieved.
Preferably, the outer periphery of the positioning pin is provided with a step which is matched with the axial end surface of the guide sleeve to limit the movement stroke.
Preferably, at least one positioning hole on each tensioning frame is in a chamfered shape, and the outer edge shape of the positioning pin corresponding to the position of the positioning hole is matched with the shape of the positioning hole.
In addition, as the guide rails of step chains or steps are fixed on the tensioning frames, the guide rails are generally positioned at the edges of the tensioning frames, the closer the positioning holes are to the guide rails, the better the positioning effect is, and the edge cutting part of the edge cutting circle can just avoid the guide rails, namely the guide rails pass approximately along the edge cutting edge.
Namely, the edge cutting part of the locating pin corresponds to a part of the edge of the guide rail on the tensioning frame, and plays a role in assisting in locating the guide rail.
Preferably, the pressing clamp includes:
the pressing head is slidably arranged on the supporting frame;
a wrench hinged on the support frame;
and the transmission mechanism is connected between the wrench and the pressing head.
In order to limit the movement path of the pressing head, a guide sleeve is preferably also provided on the support frame, the pressing head is provided with a tail rod inserted in the guide sleeve, and the tail rod is connected with the wrench through a transmission mechanism.
Preferably, the pressing head is provided with a concave hole for receiving the positioning pin.
The locating pin not only passes the locating hole of tensioning frame, still gets into the shrinkage pool of compressing tightly the head after passing, further improves the location effect.
The welding fixture can ensure that the double-splicing of the left tensioning frame and the right tensioning frame are synchronous and consistent and mutually parallel, improves the axial position precision of the tensioning shaft, and is hung into a truss of the travelator by a lifting appliance after welding forming so as to realize the total assembly of the travelator; the machining efficiency and quality are improved, and the safety and the comfort of riding the elevator are ensured.
Drawings
FIG. 1a is a front view of a welding tool of the present invention;
FIG. 1b is a schematic view of the workpiece of FIG. 1a after being mounted;
FIG. 2a is a schematic diagram of FIG. 1 a;
FIG. 2b is a side view of FIG. 1 b;
FIG. 3a is a side view of FIG. 1 a;
FIG. 3b is a side view of FIG. 1 b;
FIG. 4 is a schematic view of an axial positioning assembly;
FIG. 5 is a front view of the tensioning frame positioning and compression assembly in engagement with the workpiece;
FIG. 6 is a top view of the mating portion of the tensioning frame positioning and compression assembly with the workpiece;
FIG. 7 is a schematic view of the tensioning frame positioning and compression assembly clamping a workpiece;
FIG. 8 is a schematic diagram of the alignment pin and guide sleeve assembly relationship;
FIG. 9 is a front view of the cross beam roller assembly;
FIG. 10 is a side view of the cross beam walkway assembly;
the reference numerals in the figures are:
1. a base; 2. a heightening seat;
3. an axial positioning assembly; 301. a positioning seat; 302. positioning a screw; 303. a lock nut;
4. the tensioning frame positions the clamping assembly; 4A, positioning and clamping components of the left tensioning frame; 4B, positioning and clamping the assembly by the right tensioning frame; 401. a column; 402. positioning a base; 403. positioning a clamp cushion block; 404. positioning clamp; 405. a positioning pin; 406. a guide sleeve; 407. compressing the base; 408. compressing the clamp cushion block; 409. compressing the clamp; 410. a compacting head; 411. a tensioning frame positioning seat;
5. a travelling wheel assembly; 501. adjusting a screw; 502. an L-shaped substrate; 503. u-shaped plywood; 504. a wheel carrier; 505. a travelling wheel; 506. a bearing; 507. a walking wheel shaft; 508. a bump; 509. a spacer ring; 510. a track; 511. a stop is arranged;
6. a movable cross beam;
800. double-splicing of the tensioning frame at the lower part of the moving sidewalk; 801. a tensioning frame; 802. tensioning shaft, 803, guide rail.
Detailed Description
The detailed technical contents and embodiments of the present invention are further described below with reference to the accompanying drawings. The figures and examples shown in the drawings should not be construed as limiting the invention, and any extensions or additions to the invention are considered to be within the scope of the invention.
As shown in fig. 1a to 3b, the lower tensioning frame double-splice 800 of the travelator comprises two tensioning frames 801 arranged opposite to each other and two tensioning shafts 802 connected between the two tensioning frames, in fig. 1b, the left tensioning frame is the left tensioning frame and the right tensioning frame is the right tensioning frame.
The welding fixture comprises a base 1, wherein a heightening seat 2 is arranged on the base 1, and an axial positioning component 3 and two left tensioning frame positioning and compacting components 4A are fixed on the heightening seat 2; the two sets of left tensioning frame positioning and compacting assemblies 4A respectively correspond to two lateral sides of the left tensioning frame in the horizontal direction during operation.
Two tracks are paved side by side on the base 1, each track is respectively matched with a travelling wheel assembly 5, a movable cross beam 6 is connected between the two travelling wheel assemblies 5, and two sets of right tensioning frame positioning and compacting assemblies 4B are arranged on the movable cross beam 6; the two sets of right tensioning frame positioning and compacting assemblies 4B respectively correspond to two side edges of the right tensioning frame in the horizontal direction during operation.
The heightening seat 2 and the movable cross beam 6 are also respectively provided with a tensioning frame positioning seat for supporting the left tensioning frame and the right tensioning frame.
As shown in fig. 4, the axial positioning assembly 3 includes a positioning seat 301 fixed on the elevating seat 2, the positioning seat 301 is made of a steel structure, and a local insert is needed to be assembled at the positioning screw 302, so that a screw hole is convenient to process, the positioning screw 302 is matched with the screw hole, a locking nut 303 is sleeved on the positioning screw 302, and two tensioning shafts are arranged up and down, so that the two positioning screws 302 are arranged up and down, and each positioning screw 302 is matched with an axial end face of one tensioning shaft in a propping way so as to adjust the axial position of the tensioning shaft.
As shown in fig. 5 to 7, two sets of right tensioning frame positioning and compressing assemblies 4B and tensioning frame positioning seats 411 for supporting the right tensioning frame are arranged on the movable cross beam, and because the left tensioning frame positioning and compressing assembly 4A and the right tensioning frame positioning and compressing assembly 4B have the same structural characteristics, the right tensioning frame positioning and compressing assembly 4B includes a stand 401, a positioning base 402 and a compressing base 407 are respectively fixed on the stand 401, the two sets of clamps are arranged on the support frame from top to bottom, each set of clamps includes a positioning clamp 404 and a compressing clamp 409 which are mutually matched, the positioning clamp 404 is installed on the positioning base 402 through a positioning clamp cushion block 403, and the compressing clamp 409 is installed on the compressing base 407 through a compressing clamp cushion block 408.
The positioning clamp 404 comprises a positioning pin 405 slidably mounted on a positioning base 402, a guide sleeve 406 is arranged on the positioning base 402 in order to limit the movement path of the positioning pin 405, the positioning pin 405 is arranged in the guide sleeve 406 in a penetrating manner, a wrench is hinged on the positioning base 402, the wrench is connected with the positioning pin 405 through a connecting rod mechanism, for example, a quick-opening wrench in the prior art is adopted, and the like, the swinging of the wrench can drive the positioning pin 405 to move along the guide sleeve 406, and the wrench stretches into a positioning hole of the tensioning frame 801. The outer circumference of the positioning pin 405 is provided with a step which cooperates with the axial end surface of the guide sleeve to limit the movement stroke.
The pressing clamp 409 comprises a pressing head 410 slidably mounted on a pressing base 407, a guide sleeve is arranged on the pressing base 407 in order to limit the movement path of the pressing head 410, the pressing head 410 is provided with a tail rod and penetrates into the guide sleeve, a spanner is hinged on the pressing base 407, the spanner is connected with the tail rod through a connecting rod mechanism, for example, a quick-opening spanner in the prior art is adopted, and the like, and the swinging of the spanner can drive the pressing head 410 to move to abut against the positioning tensioning frame 801.
The initial positions of the positioning pin 405 and the pressing head 410 are respectively positioned at two sides of the tensioning frame 801, when the two sides move in two directions, the pressing head 410 abuts against one side of the tensioning frame 801, a step is further arranged on the position, adjacent to the head, of the positioning pin 405, the positioning pin 405 penetrates through a positioning hole, the step can abut against the other side of the tensioning frame 801, in addition, a concave hole is formed in the head of the pressing head 410, and the head of the positioning pin 405 penetrates through the positioning hole and then is placed into the concave hole.
The outer circumference of the positioning pin 405 is also provided with a step which is matched with the axial end surface of the guide sleeve 406 to limit the movement travel.
As shown in fig. 8, a guide 803 of a step chain or a step is fixed on the tensioning frame 801, wherein at least one positioning hole on the tensioning frame 801 is in a shape of a chamfered edge circle, the outer edge shape of the positioning pin 405 is adapted to the shape of the positioning hole, and the chamfered edge part of the chamfered edge circle is adjacent to and just avoids the guide 803, so that the guide 803 also plays a role in assisting in positioning.
As shown in fig. 9 and 10, the traveling wheel assembly 5 comprises a traveling wheel frame 504, a traveling wheel 505 is mounted at the bottom of the traveling wheel frame 504 through a bearing 506, a traveling wheel shaft 507 and a spacer 509, and is matched with a track 510, the top surface of the track 510 is trapezoidal, the outer edge of the traveling wheel 505 corresponds to the shape of the top surface of the track 510, the automatic deviation correction function can be achieved, and two ends of the track 510 are also provided with a stop 511 for limiting the limit travel of the traveling wheel 505.
A bump 508 is fixed on the top of the carriage 504; the L-shaped base plate 502 and the U-shaped plywood 503 are enclosed to form a lifting seat and sleeved on the convex block 508, the adjusting screw 501 penetrates through the top of the lifting seat and abuts against the top surface of the convex block 508, and the height of the lifting seat can be adjusted relative to the wheel carrier 504 when the adjusting screw 501 is rotated.
When the welding tool is used, the reference steps are as follows:
the working steps are as follows: checking whether the position of the movable cross beam corresponds to the width specification of the moving sidewalk to be manufactured. If not, loosening the screw connected with the base by the movable cross beam, pulling the adjusting screw of the travelling wheel assembly, so that the movable cross beam is jacked up, pushing the movable cross beam to move to a specified position along the track, pulling the adjusting screw of the travelling wheel assembly, and putting down the movable cross beam to fasten the screw.
Working steps are as follows: pushing each positioning clamp to drive the positioning pin until the step at the rear end of the positioning pin clings to the end face of the guide sleeve, namely, axially moving to be in position.
And a working step III: and placing the left tensioning frame and the right tensioning frame into the tool, and respectively compacting by using compacting heads of compacting clamps.
And a working step four: two tensioning shafts are sleeved in holes of the tensioning frame.
Working steps are as follows: and welding the left tensioning frame, the right tensioning frame and the tensioning shaft.
Working steps are as follows: and loosening the compaction heads of the compaction clamps.
Working steps are as follows: and loosening each positioning clamp and each positioning pin, and putting the double-spliced tensioning frame at the lower part of the welded moving pavement into a loosening assembly state.
Working steps are as follows: and taking out the double-splicing of the tensioning frame at the lower part of the moving sidewalk, and completing the work.
The above disclosure is merely a specific embodiment of the present invention, but the present invention is not limited thereto, and those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention. It is apparent that such modifications and variations are intended to be within the scope of the invention as claimed. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not constitute any particular limitation on the present invention.
Claims (6)
1. The utility model provides a welding frock is pieced together to automatic pavement lower part tensioning frame double, includes the base, its characterized in that still is equipped with:
two sets of left tensioning frame positioning and compressing assemblies fixed on the base, wherein each set of left tensioning frame positioning and compressing assembly respectively clamps two side edge parts of the left tensioning frame in the horizontal direction;
a movable cross beam which reciprocates on the base through a travelling wheel assembly;
two sets of right tensioning frame positioning and pressing assemblies fixed on the movable cross beam, wherein each set of right tensioning frame positioning and pressing assembly respectively clamps two side edge parts of the right tensioning frame in the horizontal direction;
the axial positioning assembly is fixed on the base and matched with the tensioning shaft penetrating between the left tensioning frame and the right tensioning frame;
each set of left tensioning frame positioning and compressing assembly and each set of right tensioning frame positioning and compressing assembly comprise a supporting frame, two groups of clamps are arranged on the supporting frame from top to bottom, and each group of clamps corresponds to one positioning hole on the left tensioning frame or the right tensioning frame;
each group of clamp comprises a positioning clamp and a pressing clamp which are matched with each other, wherein the pressing clamp is provided with a pressing head which is positioned at one side of the positioning hole and is abutted against the left tensioning frame or the right tensioning frame; the positioning clamp is provided with a positioning pin which is positioned at the other side of the positioning hole and penetrates through the positioning hole to be matched with the pressing head;
the head of the pressing head is provided with a concave hole, the positioning pin is provided with a step adjacent to the head, when the pressing head works, the positioning pin and the pressing head move in opposite directions, the pressing head is abutted against one side of the tensioning frame, the step on the positioning pin is abutted against the other side of the tensioning frame, and the head of the positioning pin passes through the positioning hole and then is placed into the concave hole of the pressing head;
the axial positioning assembly includes:
the positioning seat is fixed on the heightening seat;
the positioning screw rod is in threaded fit with the positioning seat and is in abutting fit with the axial end face of the tensioning shaft;
the lock nut is sleeved on the positioning screw rod and propped against the positioning seat;
the positioning clamp comprises:
the positioning pin is slidably mounted on the support frame;
a wrench hinged on the support frame;
the transmission mechanism is connected between the wrench and the locating pin;
the compression clamp includes:
the pressing head is slidably arranged on the supporting frame;
a wrench hinged on the support frame;
and the transmission mechanism is connected between the wrench and the pressing head.
2. The welding fixture for double-splicing of the tensioning frame at the lower part of the moving sidewalk according to claim 1, wherein two rails which are arranged in parallel are arranged on the base, the extending direction of each rail is parallel to the arrangement direction of the tensioning shaft, two sets of travelling wheel assemblies are respectively in rolling fit on a corresponding rail, and the moving cross beam is erected between the two sets of travelling wheel assemblies.
3. The welding fixture for double-splicing the lower tensioning frame of the pavement according to claim 2, wherein the top surface of the rail is provided with a guide rib or a guide groove, and the traveling wheel assembly is provided with traveling wheels with outer edge shapes which are complementary and limited with the guide rib or the guide groove.
4. The welding fixture for double-spelling of a lower tension bracket of a travelator of claim 1, characterized in that the traveling wheel assembly comprises:
a wheel carrier;
the travelling wheel is rotatably arranged at the bottom of the travelling wheel frame;
a guide piece fixed at the top of the wheel carrier;
the movable cross beam is fixedly arranged on the lifting seat;
and the driving piece drives the lifting seat to move up and down along the guide piece.
5. The welding fixture for double-splicing of a tensioning frame at the lower part of a pavement according to claim 4, wherein the guide piece is a guide block, and the bottom of the lifting seat is provided with a guide groove sleeved on the guide block in a sliding manner.
6. The welding fixture for double-splicing of the tensioning frame at the lower part of the moving walk according to claim 5, wherein the driving piece is an adjusting screw penetrating through the top wall of the guide groove, the adjusting screw is in threaded fit with the lifting seat, one end of the adjusting screw is an adjusting head positioned outside the lifting seat, and the other end of the adjusting screw abuts against the top surface of the guide block in the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323503.2A CN107900589B (en) | 2017-12-13 | 2017-12-13 | Welding fixture for double-splicing of tensioning frame at lower part of automatic sidewalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323503.2A CN107900589B (en) | 2017-12-13 | 2017-12-13 | Welding fixture for double-splicing of tensioning frame at lower part of automatic sidewalk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107900589A CN107900589A (en) | 2018-04-13 |
| CN107900589B true CN107900589B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711323503.2A Active CN107900589B (en) | 2017-12-13 | 2017-12-13 | Welding fixture for double-splicing of tensioning frame at lower part of automatic sidewalk |
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| Country | Link |
|---|---|
| CN (1) | CN107900589B (en) |
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| CN207564028U (en) * | 2017-12-13 | 2018-07-03 | 杭州西奥电梯有限公司 | A kind of welding tooling of moving sidewalk lower part tensioning frame Two bors d's oeuveres |
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| CN206500826U (en) * | 2017-02-28 | 2017-09-19 | 安徽江淮汽车集团股份有限公司 | A kind of hand-portable positioning and clamping mechanism |
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