CN116871566B - Machining tooling and machining methods for integrated upper supports for tower cranes - Google Patents
Machining tooling and machining methods for integrated upper supports for tower cranesInfo
- Publication number
- CN116871566B CN116871566B CN202310843207.4A CN202310843207A CN116871566B CN 116871566 B CN116871566 B CN 116871566B CN 202310843207 A CN202310843207 A CN 202310843207A CN 116871566 B CN116871566 B CN 116871566B
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- machining
- support
- upper support
- integrated upper
- arm side
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Mechanical Engineering (AREA)
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Abstract
本发明公开了一种用于塔式起重机的一体化上支座的机加工工装和机加工方法，该机加工工装包括底架和一体化上支座固定结构，底架能够固定安装在落地镗床上，一体化上支座固定结构设于底架上，底架能够通过一体化上支座固定结构使得一体化上支座随落地镗床的工作台同步转动。该机加工方法包括：将该机加工工装放置在数显落地镗床的工作台上，将机加工工装调平并固定安装在数显落地镗床的工作台上；通过一体化上支座固定结构将一体化上支座固定安装在底架上；通过转动数显落地镗床的工作台，依次对一体化上支座的各个待加工部位机加工。本发明的用于塔式起重机的一体化上支座的机加工工装和机加工方法能够有效降低生产成本和减少加工误差的风险。
This invention discloses a machining fixture and machining method for an integrated upper support of a tower crane. The machining fixture includes a base frame and an integrated upper support fixing structure. The base frame can be fixedly mounted on a floor-type boring machine, and the integrated upper support fixing structure is located on the base frame. The base frame can enable the integrated upper support to rotate synchronously with the worktable of the floor-type boring machine via the integrated upper support fixing structure. The machining method includes: placing the machining fixture on the worktable of the digital display floor-type boring machine; leveling and fixing the machining fixture on the worktable of the digital display floor-type boring machine; fixing the integrated upper support on the base frame via the integrated upper support fixing structure; and machining each part of the integrated upper support to be machined sequentially by rotating the worktable of the digital display floor-type boring machine. The machining fixture and machining method for the integrated upper support of a tower crane of this invention can effectively reduce production costs and reduce the risk of machining errors.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a machining tool and a machining method for an integrated upper support of a tower crane.
Background
The integrated upper support is an important component in a tower crane (tower crane for short), original tower head and upper support components are integrated into a whole, the upper part is connected with a balance arm and a crane arm of a tower crane arm frame part, and the lower part is connected with a tower body lower support, so that the integrated upper support plays a role in supporting up and down. The existing integrated upper support structure has insufficient machining stroke on the digital display floor boring machine due to the size problem, so that the digital control boring and milling machine with larger specification is adopted for machining, and the production cost is high.
Disclosure of Invention
The invention aims to overcome the technical problems and provide a machining tool and a machining method for an integrated upper support of a tower crane, which can effectively reduce production cost and reduce risk of machining errors.
In order to achieve the above object, a first aspect of the present invention provides a machining tool for an integrated upper support of a tower crane, the machining tool comprising:
a chassis for being fixedly arranged on a workbench of a floor boring machine, and
The integrated upper support fixing structure is arranged on the underframe and used for fixedly mounting the integrated upper support on the underframe;
the chassis can enable the integrated upper support to synchronously rotate along with a workbench of the floor type boring machine through the integrated upper support fixing structure.
Optionally, the integrated upper support fixing structure may include a balance arm side upper mounting seat and a support positioning seat provided on the chassis, the balance arm side upper mounting seat being used for connecting a balance arm side upper connection pin hole of the integrated upper support, and the support positioning seat being used for supporting a support portion of the integrated upper support upward.
Alternatively, the integrated upper support fixing structure may include a wall plate vertically provided on the chassis, the wall plate being provided with a boom side upper mount for connecting the boom side upper connection pin holes of the integrated upper support.
Further, the integrated upper support fixing structure may further include:
The support leans against the mountain, and fixed mounting can be connected with the support apron of integration upper bracket on the chassis to fix the support portion of integration upper bracket from the side direction.
Still further, the stand-off mountain may include:
The vertical beams are vertically fixed on the underframe and are provided with a plurality of cover plate connecting holes which can be connected with the support upper cover plate of the integrated support;
the upper ends of the inclined supporting beams are connected with the upper parts of the vertical beams in a one-to-one correspondence manner, and the lower ends of the inclined supporting beams are respectively connected with the underframe;
A plurality of first cross members connected between the vertical beams and the diagonal beams, and
And a plurality of second cross beams connected between two adjacent vertical beams.
In addition, a plurality of left and right piece positioning seats are arranged on the underframe and used for supporting the balance arm side main rod of the integrated upper support;
And/or, the underframe can vertically extend upwards to form a plurality of reinforcing square pipes, the reinforcing square pipes are connected to the wallboard in parallel, and the top end of the reinforcing square pipes is not lower than the upper mounting seat on the side of the crane boom;
and/or the left side and the right side of the underframe can be respectively provided with a reinforced girder, and the reinforced girders are vertical to the wallboards;
and/or the underframe can extend upwards obliquely to form a plurality of inclined support square tubes, and the upper ends of the inclined support square tubes are connected with the upper parts of the wallboards.
Optionally, the wallboard is arranged at the rear end of the chassis, and the machining tool can further comprise a front calibration reference hole arranged at the center part of the front end surface of the chassis;
and/or the machining tool can further comprise two left and right calibration reference holes respectively and correspondingly arranged on the left side and the right side of the underframe;
And/or, the machining tool can further comprise a movable adjusting plate, the movable adjusting plate comprises an adjusting plate fixing end and an adjusting hole end, the adjusting plate fixing end is detachably arranged on the upper mounting seat of the side of the crane boom, and the adjusting hole end extends towards the front end and is provided with an upper adjusting reference hole.
Further, the machining tool may further include:
The balance arm side wear-resisting shaft sleeve is penetrated in the fixing hole of the balance arm side upper mounting seat;
the lifting arm side wear-resistant shaft sleeve is penetrated into the fixing hole of the lifting arm side upper mounting seat;
A balance arm side connecting pin shaft which can be penetrated into the fixing hole of the balance arm side upper mounting seat and the balance arm side upper connecting pin hole, and
The lifting arm side connecting pin shaft can be arranged in the fixing hole of the lifting arm side upper part mounting seat and the lifting arm side upper part connecting pin hole in a penetrating mode.
Further, the machining tool can comprise a plurality of balance arm side wear-resistant shaft sleeves, a plurality of crane arm side wear-resistant shaft sleeves, a plurality of balance arm side connecting pin shafts and a plurality of crane arm side connecting pin shafts, wherein the plurality of balance arm side wear-resistant shaft sleeves, the plurality of crane arm side wear-resistant shaft sleeves, the plurality of balance arm side connecting pin shafts and the plurality of crane arm side connecting pin shafts are matched with the integrated upper supports with different specifications;
And/or, the wallboard can be provided with a pin supporting groove which is positioned at the side part of the upper installation seat of the crane arm side and is used for supporting the connecting pin shaft of the crane arm side.
In addition, the support positioning seat can comprise an upper cover plate lower side positioning seat and a lower cover plate lower side positioning seat, wherein the upper cover plate lower side positioning seat is used for supporting the support upper cover plate of the integrated upper support, and the lower cover plate lower side positioning seat is used for supporting the support lower cover plate of the integrated upper support.
A second aspect of the present invention provides a machining method for machining an integrated upper mount of a tower crane, the machining method comprising:
S1, placing the machining tool on a workbench of a digital display floor boring machine, leveling the machining tool, and fixedly mounting the machining tool on the workbench of the digital display floor boring machine;
S2, fixedly mounting the integrated upper support on the underframe through an integrated upper support fixing structure;
S3, machining all parts to be machined of the integrated upper support in different directions sequentially through rotating a workbench of the digital display floor boring machine.
Optionally, S1 may further include:
and the balance arm side wear-resistant shaft sleeve and the lifting arm side wear-resistant shaft sleeve which are in corresponding specifications are respectively and correspondingly arranged in the fixing holes of the balance arm side upper installation seat and the lifting arm side upper installation seat according to the specifications of the integrated upper support to be processed.
In addition, S2 may further include:
the integrated upper support is placed on the underframe, the support seat part of the integrated upper support is placed on the support seat positioning seat, the balance arm side connecting pin shaft is arranged in the balance arm side wear-resisting shaft sleeve and the balance arm side upper connecting pin hole of the integrated upper support in a penetrating manner, and the lifting arm side connecting pin shaft is arranged in the lifting arm side wear-resisting shaft sleeve and the lifting arm side upper connecting pin hole of the integrated upper support in a penetrating manner.
In addition, S2 may further include:
Firstly, a lifting arm side connecting pin shaft is placed in a pin supporting groove, and then the lifting arm side connecting pin shaft transversely penetrates into a lifting arm side wear-resisting shaft sleeve and a lifting arm side upper connecting pin hole of an integrated upper support.
Optionally, S2 may further include:
The support cover plate of the integrated upper support is abutted against the support abutment and fixedly connected to the support abutment so as to fix the support portion of the integrated upper support from the lateral direction.
In addition, S3 may further include:
S31, using a previously calibrated reference hole as a reference, locating the center of a flange surface of the integrated upper support and the center of an inner hole of the speed reducer, and respectively processing the center of the flange surface, the inner hole of the speed reducer and a speed reducer mounting surface of the reversely scraped integrated upper support;
S32, indexing a workbench of the digital display floor boring machine by 90 degrees, taking left and right calibration reference holes of a first side of a machining tool as references, locating the center of a balance arm side lower connecting hole of the first side of the integrated upper support, machining the balance arm side lower connecting hole to a preset size, locating the center of a crane arm side lower connecting hole of the first side of the integrated upper support with the reference of the upper calibration reference holes, and machining the crane arm side lower connecting hole to the preset size;
S33, indexing a workbench of the digital display floor boring machine by 180 degrees, taking left and right calibration reference holes on the second side of the machining tool as references, locating the center of a balance arm side lower connecting hole on the second side of the integrated upper support, machining the balance arm side lower connecting hole to a preset size, locating the center of a crane arm side lower connecting hole on the second side of the integrated upper support with the reference to the upper calibration reference holes, and machining the crane arm side lower connecting hole to the preset size.
The machining tool for the integrated upper support of the tower crane comprises a bottom frame and an integrated upper support fixing structure, wherein the bottom frame can be fixedly arranged on a floor boring machine, the integrated upper support fixing structure is arranged on the bottom frame and is used for fixedly arranging the integrated upper support on the bottom frame, and the bottom frame can enable the integrated upper support to synchronously rotate along with a workbench of the floor boring machine through the integrated upper support fixing structure. Therefore, the machining tool and the machining method for the integrated upper support of the tower crane can machine the upper pin shaft connecting hole on the crane boom side and the upper pin shaft connecting hole on the balance boom side before welding, and compared with the machining tool without the invention, the machining tool greatly reduces machining time and improves productivity and efficiency. In addition, the machining tool and the machining method can realize machining of the large-size integrated upper support by digital display floor boring, and greatly reduce production cost. In addition, the machining tool and the machining method can sequentially machine all parts to be machined of the integrated upper support located in different directions by rotating the workbench of the digital display floor boring machine only by fixing the integrated upper support once, the machining operation is simple and convenient, the machining time is shortened, the production efficiency can be effectively improved, the machining quality is more accurate and reliable, and the risk of machining errors is greatly reduced.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
FIG. 1 shows a schematic structural view of an integrated upper support capable of being machined using the machining tool of the present invention;
FIG. 2 is a top view of the integrated upper mount of FIG. 1;
FIG. 3 is a front view of the integrated upper mount of FIG. 1;
FIG. 4 shows a schematic structural view of a seat back of the machining tool of the present invention;
FIG. 5 is a front view of the seat back of FIG. 4;
FIG. 6 is a top view of the seat back of FIG. 4;
FIG. 7 illustrates a schematic structural view of a portion of a tooling structure of a machining tooling, not shown in the figures, according to one embodiment of the present invention;
FIG. 8 is a rear view of a portion of the tooling structure of FIG. 7;
FIG. 9 is a front view of a portion of the tooling structure of FIG. 7;
FIG. 10 is a top view of a portion of the tooling structure of FIG. 7;
FIG. 11 is a schematic view showing the structure of the left and right sheet positioning seats in FIG. 7;
FIG. 12 shows a schematic view of the structure of the stand positioning seat in FIG. 7;
FIG. 13 illustrates a schematic view of the boom upper mount and the bayonet slot of FIG. 7;
FIG. 14 illustrates an overall structural schematic of a machining tool according to an embodiment of the present invention;
FIG. 15 is a partial cross-sectional view of the position A-A in FIG. 14;
FIG. 16 is a partial cross-sectional view of the B-B position of FIG. 14;
FIG. 17 is an elevation view of the machining tool of FIG. 14;
FIG. 18 is a top view of the machining tool of FIG. 14;
FIG. 19 is a schematic view showing the overall structure of a machining tool according to an embodiment of the present invention, wherein an integrated upper support is mounted and fixed on the machining tool;
FIG. 20 is an elevation view of the machining tool and integral upper mount of FIG. 19;
FIG. 21 shows a flow chart of a machining method according to an embodiment of the invention, and
Fig. 22 is a flowchart of step 3 in fig. 21.
Description of the reference numerals
1000 Machining frock 101 chassis
1011 Balance arm side upper mounting seat 1012 support positioning seat
10121 Upper cover plate lower side positioning seat 10122 lower cover plate lower side positioning seat
1013 Left and right sheet positioning seat 1014 reinforced main beam
Front 1015 calibration reference holes 1016 left and right calibration reference holes
102 Wallboard 1021 jib loading boom side upper portion mount pad
1022-Bracket pin slot 103-bearing backer
1031 Vertical beam 1032 cover plate connecting hole
1033 First cross member of diagonal bracing 1034
1035 Second cross beam 104 reinforced square tube
105 Bracing square tube 106 balance arm side wear-resisting shaft sleeve
Connecting pin shaft of 107 crane arm side wear-resisting shaft sleeve 108 balance arm side
Movable adjusting plate for 109 crane arm side connecting pin 110
1101 Up-regulating reference hole 1021 lifting arm side upper mounting seat
2000-Integration upper support 201 balance arm side upper connecting pin hole
202 Support part 203 crane arm side upper connecting pin hole
204 Support upper cover 205 balance arm side main rod
206 Support lower cover plate 207 speed reducer inner hole
208 Balance arm side lower portion connecting hole 209 boom side lower portion connecting hole
3000 Workbench
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the positional relationship of the various components with respect to one another in the vertical, vertical or gravitational directions.
In the prior art, because the size of the connecting hole at the lifting side and the size of the connecting hole at the balance arm side are insufficient due to the stroke of equipment on a common numerical control floor boring machine, the large-size integrated upper support needs to be processed on a large numerical control boring and milling machine. Before machining, the integrated upper support needs to be subjected to high-speed rail sizing adjustment treatment, and then workpieces are clamped on equipment by using screws. According to the machining method, lateral horizontal displacement of the workpiece can occur in the machining process, so that the risk of errors in machining accuracy of the workpiece is increased.
The machining cost of the large-scale numerical control boring and milling machine is about 400/h, and the machining cost of the common digital display floor boring and milling machine is about 150/h. Compared with the machining cost of digital display floor boring and milling machine equipment, the machining cost of the large-scale digital control floor boring and milling machine is greatly increased. Specifically, the production cost increases (400-150) ×4=1000 yuan, that is, in the process of machining the integrated upper support, the production cost greatly increases due to the excessively high demand of machine tool resource allocation.
In view of this, a first aspect of the present invention provides a novel machining tool for an integrated upper support of a tower crane, where the machining tool 1000 is used to fixedly set the integrated upper support 2000 on a workbench 3000 of a floor-type boring machine for machining.
Before describing the detailed implementation of the embodiment of the present invention, the large-size integrated structure mentioned in the present invention will be described in detail, and as shown in fig. 1 to 3, the integrated upper support 2000 machined by the machining tool 1000 of the present invention integrates a tower head and an upper support component, the upper tower head is used for connecting a balance arm and a crane arm of a crane arm frame portion, and the lower support 202 is used for connecting a lower support of a tower body, so as to play a role in supporting up and down. The upper tower head is divided into a balance arm side and a boom side according to a connection function, the balance arm side is provided with a balance arm side main rod 205 and a balance arm side upper connection pin hole 201, and the boom side is provided with a boom side main rod and a boom side upper connection pin hole 203. The mount portion 202 is provided with a mount upper cover plate 204, a mount lower cover plate 206, a speed reducer inner hole 207, a balance arm side lower connection hole 208, a boom side lower connection hole 209, and the like.
In the present invention, the front-rear direction is referred to with respect to the arrangement direction of the integrated upper support 2000 in the machining tool 1000 of the present invention, and the "front end" is referred to as a position relatively close to the support portion 202 of the integrated upper support 2000, and the "rear end" is referred to as a position relatively close to the upper tower head of the integrated upper support 2000.
Specifically, as shown in fig. 7 to 20, the machining tool 1000 for an integrated upper support of a tower crane according to the present invention includes a chassis 101 and an integrated upper support fixing structure, the chassis 101 is configured to be fixedly mounted on a table 3000 of a floor boring machine, the integrated upper support fixing structure is provided on the chassis 101 and configured to fixedly mount an integrated upper support 2000 on the chassis 101, and the chassis 101 is capable of enabling the integrated upper support 2000 to synchronously rotate with the table 3000 of the floor boring machine through the integrated upper support fixing structure. In this way, the machining tool 1000 and the machining method for the integrated upper support of the tower crane can machine the upper connecting pin hole 203 of the boom side and the upper pin shaft connecting hole 201 of the balance arm side before welding, and compared with the machining tool without the invention, the machining tool greatly reduces machining time and improves productivity and efficiency. In addition, the machining tool 1000 and the machining method can realize machining of the integrated upper support 2000 with large size through digital display floor boring, and greatly reduce the production cost. In addition, the machining tool 1000 and the machining method can sequentially machine all parts to be machined of the integrated upper support 2000 in different directions by rotating the workbench 3000 of the digital display floor boring machine only by fixing the integrated upper support once, the machining operation is simple and convenient, the machining time is shortened, the production efficiency is effectively improved, the machining quality is more accurate and reliable, and the risk of machining errors is greatly reduced.
It should be noted that, the structure of the integrated upper support fixing structure of the present application may be various, for example, a plurality of rod fixing seats connected and fixed to the rods on the balance arm side of the integrated upper support 2000 may be provided on the chassis 101, or 4 side limiting fixing seats located at4 positions on the front, back, left and right may be provided on the chassis 101, and the 4 side limiting fixing seats limit and fix the integrated upper support 2000 from 4 positions, or the integrated upper support fixing structure may be other fixing structures in different forms, so long as the integrated upper support 2000 can be fixedly installed on the chassis 101 and the integrated upper support 2000 can be synchronously rotated along with the workbench 3000 of the floor boring machine.
In addition, the structural form of the chassis 101 may also be various, and as shown in fig. 7 to 10, the chassis 101 includes a plurality of cross members extending in the front-rear direction and arranged at intervals in the left-right direction, and a plurality of side members extending in the left-right direction and arranged at intervals in the front-rear direction. In addition, the left and right sides of the chassis 101 may be provided with reinforcing girders 1014, respectively, and the reinforcing girders 1014 are perpendicular to the wall plate 102, so that the structure of the chassis 101 is more stable and reliable.
Further, the integrated upper mount fixing structure of the present invention may include a balance arm side upper mount 1011 and a mount positioning 1012 provided on the chassis 101. The balance arm side upper mounting seat 1011 is used to connect the balance arm side upper connection pin hole 201 of the integrated upper support 2000, and the support positioning seat 1012 is used to support the support portion 202 of the integrated upper support 2000 upward. As shown in fig. 7 to 20, the balance arm side upper mount 1011 includes two cross members provided at a rear end portion of the chassis 101 at intervals in the left-right direction, and the mount positioning bases 1012 include a plurality of cross members and side members provided at a front end portion of the chassis 101. Thus, by connecting the balance arm side upper connecting pin hole 201 of the integrated upper holder 2000 to the balance arm side upper mounting base 1011 and supporting the holder portion 202 of the integrated upper holder 2000 to the holder positioning base 1012, the machining tool 1000 can fixedly mount the integrated upper holder 2000 on the chassis 101 and can make the integrated upper holder 2000 rotate synchronously with the table 3000 of the floor boring machine. And, this integration upper bracket fixed knot constructs has effectively utilized the pinhole structure of integration upper bracket to fix, and simple structure is reasonable, installs the simple operation, and fixed effect is reliable and stable.
Still further, the stand locating seats 1012 may include an upper cover plate lower locating seat 10121 and a lower cover plate lower locating seat 10122, wherein the upper cover plate lower locating seat 10121 is used for supporting the stand upper cover plate 204 of the integrated upper stand 2000, and the lower cover plate lower locating seat 10122 is used for supporting the stand lower cover plate 206 of the integrated upper stand 2000. As shown in fig. 10, 18 and 19, the upper cover lower side positioning seat 10121 and the lower cover lower side positioning seat 10122 are provided on the chassis 101 at intervals from front to back, the lower cover lower side positioning seat 10122 includes a plurality of cross members provided on the front end portion of the chassis 101 at intervals in the left-right direction, and the upper cover lower side positioning seat 10121 is provided on the intermediate side member of the front end portion of the chassis 101. The support upper cover 204 of the integrated upper support 2000 is supported on the upper cover lower side positioning seat 10121, the support lower cover 206 of the integrated upper support 2000 is supported on the lower cover lower side positioning seat 10122, and the balance arm side lower connecting hole 208 portion on the support portion 202 of the integrated upper support 2000 is located in the front-rear gap between the upper cover lower side positioning seat 10121 and the lower cover lower side positioning seat 10122. So, can be with the spacing fixed of support portion 202 of integration upper bracket 2000 along the fore-and-aft direction, this integration upper bracket fixed knot constructs and has effectively utilized the balance arm side lower part connecting hole 208 of integration upper bracket's structural feature to fix, simple structure is reasonable, installs the simple operation, and fixed effect is reliable and stable.
In some embodiments, the integrated upper support fixing structure of the present invention may further include a wall plate 102 vertically provided on the bottom chassis 101, the wall plate 102 being provided with a boom side upper mount 1021 for connecting the boom side upper connection pin hole 203 of the integrated upper support 2000. Specifically, as shown in fig. 7 to 20, a wall plate 102 is vertically provided at the rear end portion of the chassis 101, and a boom-side upper mount 1021 is provided at the upper end portion of the wall plate 102. The lifting arm side upper connecting pin hole 203 of the integrated upper support 2000 is connected to the lifting arm side upper mounting seat 1021 for fixing, so that the lifting arm side of the integrated upper support 2000 can be limited and fixed, the structural characteristics of the lifting arm side upper connecting pin hole 203 of the integrated upper support are effectively utilized for fixing, the structure is simple and reasonable, the mounting operation is convenient, and the fixing effect is more stable and reliable.
It should be noted that, the structural forms of the wall board 102 may be varied, and as shown in fig. 7 to 9, the wall board 102 includes a rectangular frame body, a middle supporting vertical beam and two symmetrical diagonal beams, the middle supporting vertical beam is located in the rectangular frame body and divides the rectangular frame body into two small rectangular frames, and the symmetrical diagonal beams are disposed in the small rectangular frames in a diagonal manner. Thus, the wallboard 102 is simple and stable in structure, and can effectively reduce the weight and cost of the machining tool 1000, and is convenient to install and use. In order to further stabilize and secure the structure of the wall plate 102, as shown in fig. 7 to 9, a plurality of reinforcing square tubes 104 extend vertically upward from the chassis 101, the reinforcing square tubes 104 are connected to the wall plate 102 in parallel, and the top ends of the reinforcing square tubes are not lower than the boom side upper mounting seats 1021. Of course, the application is not limited thereto and the wall panel 102 may be, for example, a structure provided with more vertical beams or more diagonal beams, or the like. In addition, the underframe 101 can also extend upwards obliquely to form a plurality of inclined support square tubes 105, and the upper ends of the inclined support square tubes 105 are connected with the upper parts of the wallboards 102, so that the structure of the machining tool 1000 is more stable and reliable. The connection and fixation structure between the boom-side upper mount 1021 and the boom-side upper connection pin hole 203 may be, for example, a pin connection structure, or a clamp fixture clamping structure, in which a clamp fixture is clamped between the boom-side upper mount 1021 and the boom-side upper connection pin hole 203, or the like, and the present application is not limited thereto.
Further, the integrated upper supporter fixing structure may further include a supporter rest 103 fixedly installed on the bottom frame 101, and the supporter rest 103 may be connected with the supporter cover of the integrated upper supporter 2000 to laterally fix the supporter portion 202 of the integrated upper supporter 2000. The support backer 103 may have various structures, such as a fixed form of a vertical beam, a fixed form of a vertical plate, and the like, and the present invention is not limited thereto.
Still further, as shown in fig. 4-6, the seat back 103 may include a plurality of vertical beams 1031, a plurality of diagonal beams 1033, a plurality of first cross beams 1034, and a plurality of second cross beams 1035. A plurality of vertical beams 1031 are vertically fixed to the base frame 101 and are provided with a plurality of cover connection holes 1032 for connection with the support upper cover 204 of the integrated upper support 2000. The upper ends of the plurality of diagonal beams 1033 are connected to the upper portions of the plurality of vertical beams 1031 in a one-to-one correspondence, and the lower ends thereof are connected to the bottom frame 101, respectively. A plurality of first cross members 1034 are connected between the vertical beams 1031 and the diagonal beams 1033. A plurality of second cross members 1035 are connected between adjacent two of the vertical members 1031.
Specifically, as shown in fig. 14 to 20, the bottoms of the plurality of vertical beams 1031 of the support backer 103 are fixedly disposed on the cross beam located at the front end position of the base frame 101 by bolts, and the bottoms of the plurality of diagonal beams 1033 of the support backer 103 are fixedly disposed on the cross beam located at the middle position of the base frame 101 by bolts. The support upper cover plate 204 of the integrated upper support 2000 is fixed on the plurality of vertical beams 1031 of the support backup 103 through the plurality of cover plate connecting holes 1032 and screw rod pieces in a pressing mode, so that the support backup 103 can fix the support portion 202 of the integrated upper support 2000 from the front side portion, the integrated upper support 2000 can be more firmly installed on the machining tool 1000, lateral displacement does not occur during machining, and machining precision is better.
Optionally, the integrated upper support fixing structure includes a plurality of left and right positioning seats 1013 provided on the chassis 101, and the plurality of left and right positioning seats 1013 are used for supporting the balance arm side main lever 205 of the integrated upper support 2000, so that the integrated upper support 2000 can be more firmly and fixedly supported on the machining tool 1000.
In addition, for the original digital display floor boring machine, the feeding travel of the equipment cannot reach due to the original range of machining size of the product, so that the integrated upper support 2000 with a large size cannot be machined. To this end, as shown in fig. 14 and 19, the machining tool 1000 of the present invention may further include a front tuning reference hole 1015, two left and right tuning reference holes 1016, and an upper tuning reference hole 1101. Thus, when machining is performed on each part to be machined, which is located in different directions, of the integrated upper support 2000, the front adjustment reference hole 1015, the two left and right adjustment reference holes 1016 and the upper adjustment reference hole 1101 can be positioned, so that machining precision can be effectively improved. The front calibration reference hole 1015 may be disposed in a central portion of a front end surface of the chassis 101, and the two left and right calibration reference holes 1016 are disposed on left and right sides of the chassis 101, respectively. The machining tool 1000 may further include a movable alignment plate 110, the movable alignment plate 110 includes an alignment plate fixing end and an alignment hole end, the alignment plate fixing end is detachably disposed on the boom side upper mounting seat 1021 through a fastener, the alignment hole end extends toward the front end, and the upper alignment reference hole 1101 is disposed on the alignment hole end of the movable alignment plate 110.
For the integrated upper support 2000 with large size, the distance between the upper connecting pin hole 203 on the crane arm side and the lower connecting hole 209 on the crane arm side is larger, and in the prior art, when machining is performed by using large-scale numerical control boring and milling machine machining equipment, the machining standard can only be found by clamping and calibrating a pressing fitting on the equipment on an equipment platform. After the boom-side upper connecting pin hole 203 is machined, the machining position of the boom-side lower connecting hole 209 is found according to the drawing size, which makes the original machining range size S1 relatively large. As shown in FIG. 19, the machining tool 1000 of the invention can shorten the original machining range size S1 to the existing machining range size S2 by designing the upper adjusting reference hole 1101 on the adjusting hole end of the movable adjusting plate 110 extending forwards, so that the machining stroke of a machine tool is shortened, the original large equipment machining of the numerical control boring and milling machine can be adjusted to be a digital display floor boring and small equipment, the machining cost is reduced, the machining quality is more accurate and reliable, and the market competitiveness is stronger. The front calibration reference hole 1015, the two left and right calibration reference holes 1016 and the upper calibration reference hole 1101 are processed in advance before upper machine tool equipment and serve as calibration references for being clamped on a digital display floor boring machine.
Further, as shown in fig. 14 to 16, the machining tool 1000 may further include a balance arm side wear sleeve 106, a boom side wear sleeve 107, a balance arm side connecting pin 108, and a boom side connecting pin 109. The balance arm side wear-resistant bush 106 is inserted into the fixing hole of the balance arm side upper mount 1011, the boom side wear-resistant bush 107 is inserted into the fixing hole of the boom side upper mount 1021, the balance arm side connecting pin shaft 108 is inserted into the fixing hole of the balance arm side upper mount 1011 and the balance arm side upper connecting pin hole 201, and the boom side connecting pin shaft 109 is inserted into the fixing hole of the boom side upper mount 1021 and the boom side upper connecting pin hole 203. In this way, the fixing hole of the upper boom-side mounting base 1011 and the fixing hole of the upper boom-side mounting base 1021 are not in direct contact with the boom-side connecting pin 108 and the boom-side connecting pin 109, but are in indirect contact with each other through the boom-side wear sleeve 106 and the boom-side wear sleeve 107, and when the use cycle time is up, the boom-side wear sleeve 106 and the boom-side wear sleeve 107 are replaced without modifying the main structure of the machining tool 1000.
Still further, the machining tool 1000 may include a plurality of balance arm side wear sleeves 106, a plurality of boom side wear sleeves 107, a plurality of balance arm side connecting pins 108, and a plurality of boom side connecting pins 109 that are used with the integrated upper support 2000 of different specifications. In this way, by replacing the balance arm side wear-resistant shaft sleeve 106, the boom side wear-resistant shaft sleeve 107, the balance arm side connecting pin shaft 108 and the boom side connecting pin shaft 109, the integrated upper support 2000 with various different sizes can be machined on the digital display floor boring, and the universality is better.
Optionally, the wall plate 102 may be provided with a pin slot 1022 on a side of the boom side upper mount 1021 for holding the boom side connection pin 109. Thus, when the boom-side connecting pin shaft is installed, the pin shaft can be supported by the pin supporting groove 1022, so that the installation operation is more reasonable and convenient.
Furthermore, a second aspect of the present invention provides a machining method for machining an integrated upper mount of a tower crane, the machining method comprising:
s1, placing the machining tool 1000 on a workbench 3000 of a digital display floor boring machine, leveling the machining tool 1000 and fixedly mounting the machining tool 1000 on the workbench 3000 of the digital display floor boring machine;
s2, fixedly mounting the integrated upper support 2000 on the underframe 101 through an integrated upper support fixing structure;
S3, machining all parts to be machined of the integrated upper support 2000 in different directions sequentially by rotating a workbench 3000 of the digital display floor boring machine.
Optionally, S1 may further include:
according to the specifications of the integrated upper support 2000 to be processed, the balance arm side wear-resistant shaft sleeve 106 and the boom side wear-resistant shaft sleeve 107 of the corresponding specifications are respectively and correspondingly installed in the fixing hole of the balance arm side upper mounting seat 1011 and the fixing hole of the boom side upper mounting seat 1021.
In addition, S2 may further include:
The integrated upper mount 2000 is placed on the underframe 101 and the mount portion 202 of the integrated upper mount 2000 is placed on the mount positioning seat 1012, the boom-side connecting pin shaft 108 is inserted into the boom-side wear sleeve 106 and the boom-side upper connecting pin hole 201 of the integrated upper mount 2000, and the boom-side connecting pin shaft 109 is inserted into the boom-side wear sleeve 107 and the boom-side upper connecting pin hole 203 of the integrated upper mount 2000.
In addition, S2 may further include:
The boom-side connecting pin shaft 109 is placed in the pin slot 1022, and then the boom-side connecting pin shaft 109 is transversely inserted into the boom-side wear sleeve 107 and the boom-side upper connecting pin hole 203 of the integrated upper mount 2000.
In some embodiments, S2 may further comprise:
The seat cover of the integrated upper seat 2000 is abutted against the seat back 103 and fixedly coupled to the seat back 103 to laterally fix the seat portion 202 of the integrated upper seat 2000.
Optionally, S3 may further include:
S31, using a previous calibration reference hole 1015 as a reference, finding the center of a flange surface of the integrated upper support 2000 and the center of the inner hole 207 of the speed reducer, and respectively processing the center of the flange surface, the inner hole 207 of the speed reducer and the mounting surface of the speed reducer of the inverse scraping integrated upper support 2000;
S32, indexing a workbench 3000 of the digital display floor boring machine by 90 degrees, taking left and right calibration reference holes 1016 on the first side of a machining tool as references, locating the center of a balance arm side lower connecting hole 208 on the first side of the integrated upper support, machining the balance arm side lower connecting hole 208 to a preset size, locating the center of a crane arm side lower connecting hole 209 on the first side of the integrated upper support as references on the upper calibration reference hole 1101, and machining the crane arm side lower connecting hole 209 to the preset size;
S33, indexing a workbench 3000 of the digital display floor boring machine for 180 degrees, centering a balance arm side lower connecting hole 208 on the second side of the integrated upper support by taking a left and right centering reference hole 1016 on the second side of the machining tool as a reference, machining the balance arm side lower connecting hole 208 to a preset size, centering a boom side lower connecting hole 209 on the second side of the integrated upper support by taking the upper centering reference hole 1101 as a reference, and machining the boom side lower connecting hole 209 to the preset size.
For the integrated upper support 2000 with large size, because the distance between the upper connecting pin hole 203 on the crane arm side and the lower connecting hole 209 on the crane arm side is larger, in the prior art, when machining is performed by using large-scale numerical control boring and milling machine machining equipment, the machining standard can only be found by clamping and calibrating a pressing fitting on the equipment on an equipment platform. After the boom-side upper connecting pin hole 203 is machined, the machining position of the boom-side lower connecting hole 209 is found according to the drawing size, which makes the original machining range size S1 relatively large. As shown in FIG. 19, the machining tool 1000 of the invention can shorten the original machining range size S1 to the existing machining range size S2 by designing the upper adjusting reference hole 1101 on the adjusting hole end of the movable adjusting plate 110 extending forwards, so that the machining stroke of a machine tool is shortened, the machining of the original large equipment of the numerical control boring and milling machine is adjusted to be a digital display floor boring and small equipment, the machining cost is reduced, the machining quality is more accurate and reliable, and the market competitiveness is stronger.
In summary, the invention provides the machining tool 1000 and the machining method for machining the integrated upper support of the tower crane, and the machining tool 1000 and the machining method can adjust the original large equipment machining of the numerical control boring and milling machine to be a digital display floor boring small equipment, reduce machining cost and ensure reliable machining quality. In addition, the machining tool 1000 and the machining method of the invention have the advantages that the pin shaft connecting holes at the upper parts of the side parts of the lifting arm and the balance arm are machined before welding, the machining time is reduced, and the productivity and the efficiency are improved. In addition, through the adjustment reference holes in different directions designed on the machining tool 1000, the machining stroke of the machine tool is shortened, the original large equipment machining of the numerical control boring and milling machine is adjusted to be digital display floor boring small equipment, the machining cost is reduced, the machining quality is more accurate and reliable, and the market competitiveness is stronger. And moreover, the mounting hole of the machining device is in non-direct contact with the structural part, the wear-resistant shaft sleeve is contacted, the service cycle time is up, the wear-resistant shaft sleeve is replaced, the main structure of the machining device is not required to be modified, and the structure is reasonable and reliable. Meanwhile, by matching with a plurality of wear-resistant shaft sleeves and pin shafts with different specifications, the integrated upper support 2000 with different dimensions can be machined on the digital display floor boring, and the universality is better.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (15)
1. A machining tool for an integrated upper support of a tower crane, the machining tool (1000) comprising:
a chassis (101) for being fixedly arranged on a workbench (3000) of a floor boring machine, and
The integrated upper support fixing structure is arranged on the underframe (101) and is used for fixedly mounting the integrated upper support (2000) on the underframe (101);
the underframe (101) can enable the integrated upper support (2000) to synchronously rotate along with a workbench (3000) of the floor boring machine through the integrated upper support fixing structure;
The integrated upper support fixing structure further comprises a wallboard (102) vertically arranged on the underframe (101), and the wallboard (102) is provided with a lifting arm side upper installation seat (1021) for connecting a lifting arm side upper connection pin hole (203) of the integrated upper support (2000);
the machining tool (1000) further comprises a movable adjusting plate (110), the movable adjusting plate (110) comprises an adjusting plate fixing end and an adjusting hole end, the adjusting plate fixing end is detachably arranged on the upper mounting seat (1021) on the side of the lifting arm, and the adjusting hole end extends towards the front end and is provided with an upper adjusting reference hole (1101).
2. The machining tool according to claim 1, wherein the integrated upper mount fixing structure includes a balance arm side upper mount (1011) and a mount positioning seat (1012) provided to the chassis (101), the balance arm side upper mount (1011) is used to connect a balance arm side upper connection pin hole (201) of the integrated upper mount (2000), and the mount positioning seat (1012) is used to upwardly support a mount portion (202) of the integrated upper mount (2000).
3. The machining tool of claim 2, wherein the integrated upper mount fixation structure further comprises:
And the support backup (103) is fixedly arranged on the underframe (101) and can be connected with a support cover plate of the integrated upper support (2000) so as to fix a support part (202) of the integrated upper support (2000) from the side direction.
4. A machining tool according to claim 3, wherein the abutment fence (103) comprises:
A plurality of vertical beams (1031) vertically fixed on the underframe (101) and provided with a plurality of cover plate connecting holes (1032) for connecting with a support upper cover plate (204) of the integrated upper support (2000);
The upper ends of the diagonal bracing beams (1033) are connected with the upper parts of the vertical beams (1031) in a one-to-one correspondence manner, and the lower ends of the diagonal bracing beams are respectively connected with the underframe (101);
a plurality of first cross members (1034) connected between the vertical beams (1031) and the diagonal beams (1033), and
And a plurality of second cross members (1035) connected between two adjacent vertical members (1031).
5. The machining tool according to claim 1, wherein the chassis (101) is further provided with a plurality of left and right sheet positioning seats (1013), and the plurality of left and right sheet positioning seats (1013) are used for supporting the balance arm side main rod (205) of the integrated upper support (2000);
and/or, the underframe (101) vertically extends upwards to form a plurality of reinforcing square pipes (104), the reinforcing square pipes (104) are connected to the wallboard (102) in parallel, and the top end of the reinforcing square pipes is not lower than the upper mounting seat (1021) on the crane arm side;
and/or, the left side and the right side of the underframe (101) are respectively provided with a reinforced girder (1014), and the reinforced girders (1014) are perpendicular to the wallboard (102);
And/or the underframe (101) obliquely upwards extends out of a plurality of inclined support square pipes (105), and the upper ends of the inclined support square pipes (105) are connected with the upper parts of the wallboards (102).
6. The machining tool according to claim 1, wherein the wall plate (102) is provided at a rear end of the chassis (101), the machining tool (1000) further comprising a front adjustment reference hole (1015) provided at a front end surface center portion of the chassis (101);
And/or, the machining tool (1000) further comprises two left and right calibration reference holes (1016) respectively and correspondingly arranged on the left side and the right side of the chassis (101).
7. The machining tool according to claim 2, wherein the machining tool (1000) further comprises:
a balance arm side wear-resistant shaft sleeve (106) which is inserted into a fixing hole of the balance arm side upper mounting seat (1011);
A boom-side wear-resistant sleeve (107) which is inserted into a fixing hole of the boom-side upper mount (1021);
A balance arm side connecting pin shaft (108) which can be inserted into a fixing hole of the balance arm side upper mounting base (1011) and the balance arm side upper connecting pin hole (201), and
And a boom-side connecting pin (109) that can be inserted into the fixing hole of the boom-side upper mounting base (1021) and the boom-side upper connecting pin hole (203).
8. The machining tool according to claim 7, wherein the machining tool (1000) includes a plurality of the boom-side wear-resistant bushings (106), a plurality of the boom-side wear-resistant bushings (107), a plurality of the boom-side connecting pins (108), and a plurality of the boom-side connecting pins (109) that are used with integrated upper brackets (2000) of different specifications;
And/or, the wallboard (102) is provided with a pin supporting groove (1022) which is positioned at the side part of the upper installation seat (1021) at the side of the lifting arm and is used for supporting the connecting pin shaft (109) at the side of the lifting arm.
9. The machining tool according to claim 2, wherein the support positioning seat (1012) comprises an upper cover plate lower side positioning seat for supporting a support upper cover plate (204) of the integrated upper support (2000) and a lower cover plate lower side positioning seat for supporting a support lower cover plate (206) of the integrated upper support.
10. A machining method for machining an integrated upper support of a tower crane, the machining method comprising:
S1, placing the machining tool (1000) according to any one of claims 1 to 9 on a workbench (3000) of a digital display floor boring machine, leveling and fixedly mounting the machining tool (1000) on the workbench (3000) of the digital display floor boring machine;
s2, fixedly mounting an integrated upper support (2000) on the underframe (101) through the integrated upper support fixing structure;
S3, machining all parts to be machined of the integrated upper support (2000) in different directions sequentially through rotating a workbench (3000) of the digital display floor boring machine.
11. The machining method of claim 10, wherein S1 further comprises:
According to the specification of the integrated upper support (2000) to be processed, the balance arm side wear-resistant shaft sleeve (106) and the lifting arm side wear-resistant shaft sleeve (107) which correspond to the specifications are respectively and correspondingly installed in the fixing hole of the balance arm side upper installation seat (1011) and the fixing hole of the lifting arm side upper installation seat (1021).
12. The machining method of claim 11, wherein S2 further comprises:
The integrated upper support (2000) is placed on the underframe (101), a support seat part (202) of the integrated upper support (2000) is placed on a support seat positioning seat (1012), a balance arm side connecting pin shaft (108) is penetrated into a balance arm side wear-resisting shaft sleeve (106) and a balance arm side upper connecting pin hole (201) of the integrated upper support (2000), and a crane arm side connecting pin shaft (109) is penetrated into a crane arm side wear-resisting shaft sleeve (107) and a crane arm side upper connecting pin hole (203) of the integrated upper support (2000).
13. The machining method of claim 12, wherein S2 further comprises:
The lifting arm side connecting pin shaft (109) is firstly placed in the supporting pin groove (1022), and then the lifting arm side connecting pin shaft (109) transversely penetrates into the lifting arm side abrasion-resistant shaft sleeve (107) and the lifting arm side upper connecting pin hole (203) of the integrated upper support (2000).
14. The machining method of claim 10, wherein S2 further comprises:
the support cover plate of the integrated upper support (2000) is abutted against the support backing (103) and fixedly connected to the support backing (103) so as to fix the support part (202) of the integrated upper support (2000) from the lateral direction.
15. The machining method of claim 10, wherein S3 further comprises:
S31, using a previous calibration reference hole (1015) as a reference, finding the center of a flange surface of the integrated upper support (2000) and the center of a speed reducer inner hole (207), and respectively processing the center of the flange surface, the speed reducer inner hole (207) and a speed reducer mounting surface of the reversely scraping integrated upper support (2000);
S32, indexing a workbench (3000) of a digital display floor boring machine by 90 degrees, taking a left and right correction reference hole (1016) on the first side of a machining tool as a reference, locating the center of a balance arm side lower connecting hole (208) on the first side of an integrated upper support, machining the balance arm side lower connecting hole (208) to a preset size, locating the center of a crane arm side lower connecting hole (209) on the first side of the integrated upper support as a reference, and machining the crane arm side lower connecting hole (209) to the preset size;
s33, indexing a workbench (3000) of the digital display floor boring machine for 180 degrees, taking a left and right correction reference hole (1016) on the second side of the machining tool as a reference, locating the center of a balance arm side lower connecting hole (208) on the second side of the integrated upper support, machining the balance arm side lower connecting hole (208) to a preset size, taking the upper correction reference hole (1101) as a reference, locating the center of a crane arm side lower connecting hole (209) on the second side of the integrated upper support, and machining the crane arm side lower connecting hole (209) to the preset size.
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| CN202310843207.4A CN116871566B (en) | 2023-07-10 | 2023-07-10 | Machining tooling and machining methods for integrated upper supports for tower cranes |
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| CN202310843207.4A CN116871566B (en) | 2023-07-10 | 2023-07-10 | Machining tooling and machining methods for integrated upper supports for tower cranes |
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| CN204504283U (en) * | 2015-02-02 | 2015-07-29 | 国水投资集团西安风电设备股份有限公司 | A kind of wind generator set stator support boring machine drilling equipment |
| CN210848985U (en) * | 2019-11-07 | 2020-06-26 | 沈阳三洋建筑机械有限公司 | Positioning tool for splicing tower head of flat-head type tower crane |
| CN112091506A (en) * | 2020-08-26 | 2020-12-18 | 中联重科股份有限公司 | Balance arm swinging and overlapping tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR1602637A (en) * | 1967-07-11 | 1971-01-04 | ||
| CN210588239U (en) * | 2019-09-05 | 2020-05-22 | 大汉科技股份有限公司 | Fixed tool and machining device for machining tower crane rotary joint |
| CN110814610B (en) * | 2019-10-23 | 2022-04-22 | 湖南中联重科建筑起重机械有限责任公司 | Welding tool |
| CN215035571U (en) * | 2021-06-04 | 2021-12-07 | 中联重科股份有限公司 | Tool for placing tower head |
| CN216802511U (en) * | 2022-03-14 | 2022-06-24 | 长沙市速工科技有限责任公司 | Tower crane upper bracket machining center |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204504283U (en) * | 2015-02-02 | 2015-07-29 | 国水投资集团西安风电设备股份有限公司 | A kind of wind generator set stator support boring machine drilling equipment |
| CN210848985U (en) * | 2019-11-07 | 2020-06-26 | 沈阳三洋建筑机械有限公司 | Positioning tool for splicing tower head of flat-head type tower crane |
| CN112091506A (en) * | 2020-08-26 | 2020-12-18 | 中联重科股份有限公司 | Balance arm swinging and overlapping tool |
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