CN115647720A - Excavator underframe clamp and positioner thereof - Google Patents
Excavator underframe clamp and positioner thereof Download PDFInfo
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- CN115647720A CN115647720A CN202211670289.9A CN202211670289A CN115647720A CN 115647720 A CN115647720 A CN 115647720A CN 202211670289 A CN202211670289 A CN 202211670289A CN 115647720 A CN115647720 A CN 115647720A
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- underframe
- clamping
- rotating sleeve
- excavator
- clamp
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- 238000003466 welding Methods 0.000 claims abstract description 28
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000007306 turnover Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 241000282376 Panthera tigris Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention is an excavator chassis clamp and its position changer, including: the mounting seat is fixedly provided with a fixing plate above; the rotating sleeve is arranged between the mounting seat and the fixing plate; the first driving mechanism is suitable for driving the rotating sleeve to rotate; a plurality of sliding seats which are arranged on the fixed plate at intervals; the clamping parts are arranged on the corresponding sliding seats in a sliding manner; the connecting column is fixed on the clamping part, penetrates through the fixing plate and is arranged in an adjusting hole formed in the end face of the rotating sleeve; the distance from the central line of the adjusting hole to the center of the rotating sleeve is gradually increased or decreased; the scheme can fully weld the underframe under the condition that the underframe is not secondarily clamped, and solves the problems of secondary clamping caused by manual turnover and high safety risk in the prior art; in addition, the process of secondary clamping is reduced, so that the operation efficiency can be greatly improved, and the capacity of single-station equipment is increased; the welding of the inner cavity of the underframe is realized through one-time clamping, and the clamping of the underframe is also realized.
Description
Technical Field
The invention relates to a clamp, in particular to an excavator underframe clamp and a positioner thereof.
Background
At present, excavator structural member manufacturers are equipped with welding position changers at welding stations for improving working efficiency, reducing labor intensity of workers and reducing manufacturing safety risks;
the existing welding positioner technology has the following defects and shortcomings:
the welding positioner of the existing chassis of the small excavator is used for welding after the clamping is finished, and because the lower part of the chassis is shielded by a horizontal supporting part (a positioner table board), a welding gun can only stretch into the upper part of the horizontal supporting part for welding, the space of an inner cavity of the chassis of the small excavator is small, the angle of the welding gun is limited, welding seams of the inner cavity part cannot be welded, the parts are required to be disassembled, and then the parts are welded manually, so that the operation efficiency is low, and the potential safety hazard exists in manual turning.
Attempts have been made to improve upon the above-described welding positioner solutions. The existing scheme is that the chassis part is clamped positively and negatively twice, and the lower part of the chassis is not shielded by equipment by adding one-time reverse clamping, so that the chassis can be directly welded on a position changer, and the manual work for turning over the chassis on the ground is eliminated.
However, the technical scheme still has the defects that the back clamping scheme must be matched with the corresponding logistics equipment, the part needs to be turned over or the welding equipment needs to be turned over in the clamping process, the scheme selection is limited, the clamping efficiency is low, the equipment investment is increased under the same production capacity, and the investment cost is high.
In conclusion, how to realize the welding of the inner cavity of the underframe through one-time clamping and how to realize the clamping of the underframe become problems which are urgently needed to be solved by researchers in the field.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to clamp the underframe;
in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the invention is an excavator underframe fixture, comprising: the mounting seat is fixedly provided with a fixing plate above; the rotating sleeve is arranged between the mounting seat and the fixing plate; the first driving mechanism is suitable for driving the rotating sleeve to rotate; a plurality of sliding seats which are arranged on the fixed plate at intervals; the clamping part is arranged on the corresponding sliding seat in a sliding manner; the connecting column is fixed on the clamping part, penetrates through the fixing plate and is arranged in an adjusting hole formed in the end face of the rotating sleeve; the distance from the central line of the adjusting hole to the center of the rotating sleeve is gradually increased or decreased; when the underframe is arranged on the fixed plate, the first driving mechanism drives the rotating sleeve to rotate, the clamping part is pulled to linearly move outwards along the sliding seat through the matching of the adjusting hole and the connecting column, and the inner ring of the underframe is clamped through the clamping part;
in the scheme, a rotating sleeve is arranged between a fixed mounting seat and a fixed plate, a plurality of sliding seats are arranged on the fixed plate, clamping parts are arranged on the two sliding seats in a sliding manner and can perform linear motion between the two sliding seats, one end of a connecting column is fixed with the clamping parts, and the other end of the connecting column penetrates through the fixed plate and is arranged in an adjusting hole; therefore, the first driving mechanism drives the rotating sleeve to rotate, the clamping parts are driven to do linear motion through the adjusting holes, the clamping parts move outwards synchronously, the underframe is clamped and fixed on the fixing plate, and the underframe is clamped.
In order to explain the specific structure of the first driving mechanism, the invention adopts the combination of a worm gear and a worm;
the turbine is sleeved on the outer wall of the rotating sleeve, and the worm rotates to drive the turbine to rotate, so that the rotating sleeve is driven to rotate.
In order to explain the specific structure of the clamping part, the invention adopts the clamping part comprising: the sliding block is arranged between the two sliding seats in a sliding manner; the hook body is fixedly arranged at the end part of the sliding block and is suitable for abutting against the inner ring of the underframe;
be provided with on the coupler body and supply chassis inner circle limit male tiger's mouth, the spliced pole is fixed with the sliding block, and linear motion around the sliding block can be realized, and then drives the coupler body and carry out linear motion around.
In order to realize the prepositioning of the underframe, a plurality of guide pieces are arranged on the end surface of the fixing plate close to the inner ring at intervals, and the guide pieces are suitable for carrying out the prepositioning with the inner ring of the underframe; the outer side edge of the end face of the fixed plate is provided with a limiting piece, and the limiting piece is suitable for abutting against the side edge of the underframe to limit;
when the underframe is arranged on the fixing plate, the plurality of guide pieces are arranged in the inner hole of the underframe, the underframe is pre-positioned at the moment, and the underframe cannot move within a range at the moment; subsequently, one side edge of the bottom frame is abutted against the limiting part, so that the adjustment in the direction of the bottom frame can be realized.
In order to explain the specific structures of the limiting part and the guide part, the guide part and the limiting part are both in an L-shaped structure.
Further, a guide inclined plane is arranged on the outer side of the top of the guide piece;
when the chassis is inserted between the plurality of guide members, the automatic sliding of the chassis can be realized by providing the guide slopes, and the chassis can be pre-positioned.
In order to solve the problem of realizing the welding of the inner cavity of the chassis by one-time clamping, the invention provides a positioner, which comprises: the position changer mounting seat is fixedly arranged; the rotating arm comprises a vertical supporting part connected with the positioner mounting seat and a horizontal supporting part connected with the excavator underframe fixture; a Y-axis rotating mechanism which is suitable for driving the vertical supporting part to rotate around the Y-axis direction relative to the shifter mounting seat; a Z-axis rotation mechanism adapted to drive rotation of the excavator undercarriage clamp relative to the horizontal support about a Z-axis direction;
therefore, the excavator underframe fixture can rotate along two shafts through the Y-axis rotating mechanism and the Z-axis rotating mechanism, and the underframe can be conveniently adjusted to different angles and different positions for welding.
In order to facilitate the welding gun to enter the inner ring of the chassis for welding, through holes concentric with the inner ring of the chassis are formed in the end part of the horizontal supporting part, the center of the mounting seat and the center of the fixing plate; the through hole is suitable for the extending of the welding gun;
that is to say, the end part of the horizontal supporting part is of a hollow structure, the chassis clamp is also of a hollow structure, the extending of a welding gun can be realized by arranging a through hole, and the inner hole of the chassis is welded in all aspects;
in the scheme, the Y-axis rotating mechanism and the Z-axis rotating mechanism are both arranged conventionally, and are not specifically described in the scheme.
The invention has the beneficial effects that: the invention relates to an excavator underframe clamp and a positioner thereof, which can weld an underframe in all aspects under the condition that a sole frame is not subjected to secondary clamping, and solves the problems of secondary clamping caused by traditional manual turning and high safety risk; in addition, the process of secondary clamping is reduced, so that the operation efficiency can be greatly improved, and the capacity of single-station equipment is increased; the welding of the inner cavity of the underframe is realized through one-time clamping, and the clamping of the underframe is also realized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the construction of an excavator undercarriage clamp;
FIG. 2 is a schematic view of the structure of the rotating sleeve;
FIG. 3 is a schematic view of the structure of the clamping portion;
FIG. 4 is a schematic view of the construction of the index;
FIG. 5 is a schematic view of the construction of the swivel arm;
in the figure: 1-mounting seat, 2-fixing plate, 3-rotating sleeve, 4-first driving mechanism, 5-clamping part, 6-connecting column, 7-adjusting hole, 8-sliding seat, 9-sliding block, 10-hook body, 11-guiding piece, 12-limiting piece, 13-position changer mounting seat, 14-vertical supporting part, 15-horizontal supporting part and 16-through hole.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-2, the present invention is an excavator undercarriage clamp comprising: the mounting base 1 is fixedly provided with a fixing plate 2 above; the rotating sleeve 3 is arranged between the mounting seat 1 and the fixing plate 2; a first driving mechanism 4 adapted to drive the rotating sleeve 3 to rotate; a plurality of sliding seats 8 which are arranged on the fixed plate 2 at intervals; the clamping parts 5 are arranged on the corresponding sliding seats 8 in a sliding manner; a connecting column 6 which is fixed on the clamping part 5, passes through the fixed plate 2 and is arranged in an adjusting hole 7 arranged on the end surface of the rotating sleeve 3; the distance from the central line of the adjusting hole 7 to the circle center of the rotating sleeve 3 is gradually increased or decreased; when the underframe is arranged on the fixed plate 2, the first driving mechanism 4 drives the rotating sleeve 3 to rotate, the clamping part 5 is pulled to linearly move outwards along the sliding seat 8 through the matching of the adjusting hole 7 and the connecting column 6, and the inner ring of the underframe is clamped through the clamping part 5;
in the scheme, a rotating sleeve is arranged between a fixed mounting seat and a fixed plate, a plurality of sliding seats are arranged on the fixed plate, clamping parts are arranged on the two sliding seats in a sliding manner and can perform linear motion between the two sliding seats, one end of a connecting column is fixed with the clamping parts, and the other end of the connecting column penetrates through the fixed plate and is arranged in an adjusting hole; therefore, the first driving mechanism drives the rotating sleeve to rotate, the clamping parts are driven to do linear motion through the adjusting holes, the clamping parts move outwards synchronously, the underframe is clamped and fixed on the fixing plate, and the underframe is clamped.
As shown in fig. 2, in order to explain the specific structure of the first driving mechanism, the present invention adopts a combination of a worm gear and a worm for the first driving mechanism 4;
the turbine is sleeved on the outer wall of the rotating sleeve, and the worm rotates to drive the turbine to rotate, so that the rotating sleeve is driven to rotate.
As shown in fig. 3, in order to explain a specific structure of the clamping portion, the present invention employs a clamping portion including: a sliding block 9 which is arranged between the two sliding seats 8 in a sliding way; a hook body 10 fixedly arranged at the end part of the sliding block 9 and suitable for abutting against the inner ring of the underframe;
be provided with on the coupler body and supply chassis inner circle limit male tiger's mouth, the spliced pole is fixed with the sliding block, and linear motion around the sliding block can be realized, and then drives the coupler body and carry out linear motion around.
As shown in fig. 1, in order to realize the pre-positioning of the chassis, the invention adopts the fixed plate 2 that the end surface is provided with a plurality of guiding pieces 11 at intervals near the inner ring, and the guiding pieces 11 are suitable for pre-positioning with the inner ring of the chassis; the outer side edge of the end surface of the fixed plate 2 is provided with a limiting piece 12, and the limiting piece 12 is suitable for abutting against the side edge of the underframe for limiting;
when the underframe is arranged on the fixing plate, the plurality of guide pieces are arranged in the inner hole of the underframe, the underframe is pre-positioned at the moment, and the underframe cannot move within a range at the moment; subsequently, one side edge of the bottom frame is abutted against the limiting part, so that the adjustment in the direction of the bottom frame can be realized.
As shown in fig. 1, in order to describe the specific structures of the limiting member and the guiding member, the guiding member 11 and the limiting member 12 are both L-shaped structures.
As shown in fig. 1, further, a guide inclined plane is arranged on the outer side of the top of the guide member;
when the underframe is inserted between the plurality of guide pieces, the automatic sliding of the underframe can be realized by arranging the guide inclined planes, and the underframe can be pre-positioned.
As shown in fig. 4, in order to solve the problem of realizing welding of the inner cavity of the chassis by one-time clamping, the invention provides a positioner, which comprises: a displacer mount 13 fixedly installed; a rotating arm which comprises a vertical supporting part 14 connected with the positioner mounting seat 13 and a horizontal supporting part 15 connected with an excavator underframe clamp; a Y-axis rotating mechanism adapted to drive rotation of the vertical support portion 14 about the Y-axis direction with respect to the displacer mount 13; a Z-axis rotating mechanism adapted to drive rotation of the excavator undercarriage clamp about the Z-axis direction relative to the horizontal support 15;
therefore, the excavator underframe fixture can rotate two shafts through the Y-axis rotating mechanism and the Z-axis rotating mechanism, and the underframe can be conveniently adjusted to different angles and different positions for welding.
As shown in fig. 5, in order to facilitate the welding gun to enter the inner ring of the chassis for welding, the end of the horizontal supporting part 15, the center of the mounting seat 1 and the center of the fixing plate 2 are provided with through holes 16 concentric with the inner ring of the chassis; the through hole 16 is adapted for insertion of a welding gun;
that is to say, the end part of the horizontal supporting part is of a hollow structure, the underframe fixture is also of a hollow structure, the extending of a welding gun can be realized by arranging the through hole, and the inner hole of the underframe is welded in all aspects;
in the scheme, the Y-axis rotating mechanism and the Z-axis rotating mechanism are both arranged conventionally, and are not specifically described in the scheme.
The invention relates to an excavator underframe clamp and a positioner thereof, which can weld an underframe in all aspects under the condition that a sole frame is not subjected to secondary clamping, and solves the problems of secondary clamping caused by traditional manual turning and high safety risk; in addition, the process of secondary clamping is reduced, so that the operation efficiency can be greatly improved, and the capacity of single-station equipment is increased; the welding of the inner cavity of the underframe is realized through one-time clamping, and the clamping of the underframe is also realized.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. Excavator underframe anchor clamps, its characterized in that includes:
a fixing plate is fixedly arranged above the mounting seat;
the rotating sleeve is arranged between the mounting seat and the fixing plate;
the first driving mechanism is suitable for driving the rotating sleeve to rotate;
a plurality of sliding seats which are arranged on the fixed plate at intervals;
the clamping part is arranged on the corresponding sliding seat in a sliding manner;
the connecting column is fixed on the clamping part, penetrates through the fixing plate and is arranged in an adjusting hole formed in the end face of the rotating sleeve;
the distance from the central line of the adjusting hole to the center of the rotating sleeve is gradually increased or decreased;
when the chassis is arranged on the fixing plate, the first driving mechanism drives the rotating sleeve to rotate, the clamping portion is pulled to linearly move outwards along the sliding seat through the matching of the adjusting hole and the connecting column, and the inner ring of the chassis is clamped through the clamping portion.
2. The excavator undercarriage clamp of claim 1 wherein said first drive mechanism employs a combination of worm and gear drives.
3. The excavator undercarriage clamp of claim 1 wherein said clamping portion comprises:
the sliding block is arranged between the two sliding seats in a sliding manner;
and the hook body is fixedly arranged at the end part of the sliding block and is suitable for abutting against the inner ring of the bottom frame.
4. The excavator underframe clamp of claim 1, wherein a plurality of guides are spaced apart from the end surface of the fixed plate near the inner race, the guides being adapted to be pre-positioned with respect to the inner race of the underframe;
the outer side edge of the end face of the fixing plate is provided with a limiting part, and the limiting part is suitable for abutting against the side edge of the underframe to limit.
5. The excavator undercarriage clamp of claim 4 wherein said guide and retainer are each L-shaped structures.
6. The excavator undercarriage clamp of claim 4 wherein said guide member top outer side is provided with a guide ramp.
7. An index comprising the excavator undercarriage clamp of any one of claims 1 to 6, comprising:
the position changer mounting seat is fixedly arranged;
the rotating arm comprises a vertical supporting part connected with the positioner mounting seat and a horizontal supporting part connected with the excavator underframe fixture;
a Y-axis rotating mechanism which is suitable for driving the vertical supporting part to rotate around the Y-axis direction relative to the shifter mounting seat;
a Z-axis rotation mechanism adapted to drive rotation of the excavator undercarriage clamp relative to the horizontal support about a Z-axis direction.
8. The positioner according to claim 7, wherein through holes concentric with the inner ring of the bottom frame are formed at the end part of the horizontal support part, the center of the mounting seat and the center of the fixing plate;
the through hole is suitable for the extending of a welding gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211670289.9A CN115647720A (en) | 2022-12-26 | 2022-12-26 | Excavator underframe clamp and positioner thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211670289.9A CN115647720A (en) | 2022-12-26 | 2022-12-26 | Excavator underframe clamp and positioner thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115647720A true CN115647720A (en) | 2023-01-31 |
Family
ID=85022148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211670289.9A Pending CN115647720A (en) | 2022-12-26 | 2022-12-26 | Excavator underframe clamp and positioner thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115647720A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB380720A (en) * | 1931-03-02 | 1932-09-22 | Forkardt Paul Kg | Improvements in or relating to chucks |
| CN2612503Y (en) * | 2003-04-25 | 2004-04-21 | 天津鼎盛工程机械有限公司 | Welding positioner with three degree of freedom |
| CN107052689A (en) * | 2017-05-29 | 2017-08-18 | 张家港富朗特重工有限公司 | Lower frame of excavator positioner |
| CN213195692U (en) * | 2020-08-15 | 2021-05-14 | 东莞市加穗精密夹具有限公司 | Manual chuck |
| CN213410378U (en) * | 2020-10-12 | 2021-06-11 | 杭州鹤见南方泵业有限公司 | Clamp for processing annular workpiece |
| CN215903007U (en) * | 2021-09-06 | 2022-02-25 | 三一机器人科技有限公司 | Positioner and welding production line |
| CN115301972A (en) * | 2022-08-25 | 2022-11-08 | 永康市超博众冠工贸有限公司 | Three-jaw chuck |
-
2022
- 2022-12-26 CN CN202211670289.9A patent/CN115647720A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB380720A (en) * | 1931-03-02 | 1932-09-22 | Forkardt Paul Kg | Improvements in or relating to chucks |
| CN2612503Y (en) * | 2003-04-25 | 2004-04-21 | 天津鼎盛工程机械有限公司 | Welding positioner with three degree of freedom |
| CN107052689A (en) * | 2017-05-29 | 2017-08-18 | 张家港富朗特重工有限公司 | Lower frame of excavator positioner |
| CN213195692U (en) * | 2020-08-15 | 2021-05-14 | 东莞市加穗精密夹具有限公司 | Manual chuck |
| CN213410378U (en) * | 2020-10-12 | 2021-06-11 | 杭州鹤见南方泵业有限公司 | Clamp for processing annular workpiece |
| CN215903007U (en) * | 2021-09-06 | 2022-02-25 | 三一机器人科技有限公司 | Positioner and welding production line |
| CN115301972A (en) * | 2022-08-25 | 2022-11-08 | 永康市超博众冠工贸有限公司 | Three-jaw chuck |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230131 |
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| RJ01 | Rejection of invention patent application after publication |