CN111515705A - High-speed high-precision single-drive gantry structure - Google Patents
High-speed high-precision single-drive gantry structure Download PDFInfo
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- CN111515705A CN111515705A CN202010347557.8A CN202010347557A CN111515705A CN 111515705 A CN111515705 A CN 111515705A CN 202010347557 A CN202010347557 A CN 202010347557A CN 111515705 A CN111515705 A CN 111515705A
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- 238000000034 method Methods 0.000 abstract description 10
- 230000001133 acceleration Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/012—Portals
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Abstract
The embodiment of the invention provides a high-speed high-precision single-drive gantry structure which comprises an equipment rack, a first beam assembly and a second beam assembly, wherein the first beam assembly and the second beam assembly are slidably arranged on the equipment rack, the equipment rack comprises a first driving side guide rail and a first driven side guide rail, and two ends of the first beam assembly in the X direction are respectively slidably connected with the first driving side guide rail and the first driven side guide rail. The high-speed high-precision single-drive gantry structure provided by the invention can carry the first beam assembly and the second beam assembly at the same time, has good casting stability, meets the processing technology requirement of high-precision requirement, and greatly reduces precision loss caused by impact in the acceleration and deceleration process in the high-speed movement process.
Description
Technical Field
The invention relates to the technical field of light industrial production and manufacturing, in particular to a high-speed high-precision single-drive gantry structure.
Background
The gantry structure is also called a gantry machining center, and refers to a machining center with a main shaft axis perpendicular to a workbench, the whole structure is a gantry frame and comprises double upright columns, a top beam and a cross beam in the middle, the gantry structure is mainly suitable for machining large-sized workpieces and workpieces with complex shapes, and is widely applied to the field of light industrial production and manufacturing at present.
The frame of a common gantry structure is built by using sectional materials or welded by using a square tube, and the structure can not meet the processing technology of high-precision requirements and can not reach good precision in a high-speed running state. Meanwhile, the rack assembled by the aluminum profile is completely assembled and built manually in the assembling process, and the precision of the mounting surface and the integral rigidity after the assembly cannot reach the high-precision level. The square tube welded frame has certain deformation in the process of processing through welding, flat grinding and other processes, and finally the requirements of high speed and high precision cannot be met.
Disclosure of Invention
The invention provides a high-speed high-precision single-drive gantry structure, which aims to solve the problem that the existing gantry structure is difficult to meet the machining process of high-precision requirements.
The utility model provides a high-speed high accuracy single-wheel drive gantry structure, includes equipment rack, first beam assembly and second beam assembly, first beam assembly with second beam assembly slidable ground sets up in the equipment rack, its characterized in that, the equipment rack includes first initiative side guide rail and first driven side guide rail, first beam assembly along the both ends of X direction respectively with first initiative side guide rail first driven side guide rail sliding connection.
Further, the equipment rack further comprises a first Y-axis servo motor and a first ball screw which are assembled and connected with each other, and the first ball screw and the first beam assembly are connected in a sliding mode.
Furthermore, the equipment rack further comprises a second driving side guide rail and a second driven side guide rail, and two ends of the second beam assembly in the X direction are slidably connected with the second driving side guide rail and the second driven side guide rail respectively.
Further, the equipment rack further comprises a second Y-axis servo motor and a second ball screw which are assembled and connected with each other, and the second ball screw is connected with the second beam assembly in a sliding mode.
Further, first crossbeam subassembly includes first crossbeam main part, first crossbeam main part is fixed to be equipped with first X axle auxiliary guide subassembly and the first X axle servo motor and the first drive assembly of mutual assembly connection, the bottom of first crossbeam main part respectively with first initiative side guide rail first driven side guide rail slidable connection.
Further, the first beam assembly further comprises a first load, and the bottom of the first load is slidably connected with the first driving assembly and the first X-axis auxiliary guide assembly respectively.
Further, the first load comprises a first load main body, a first Z-axis servo motor and a first Z-axis driving assembly, and the first Z-axis servo motor is slidably connected with the first load main body through the first Z-axis driving assembly.
Further, the second beam assembly comprises a second beam main body, a second X-axis servo motor and a second driving assembly which are fixedly provided with a second X-axis auxiliary guide assembly and are assembled and connected with each other are arranged on the second beam main body, and the bottom of the second beam main body is slidably connected with the second driving side guide rail and the second driven side guide rail respectively.
Further, the second beam assembly further comprises a second load, and the bottom of the second load is slidably connected with the second driving assembly and the second X-axis auxiliary guide assembly respectively.
Further, the second load comprises a second load main body, a second Z-axis servo motor and a second Z-axis driving assembly, and the second Z-axis servo motor is slidably connected with the second load main body through the second Z-axis driving assembly.
The invention provides a high-speed high-precision single-drive gantry structure which comprises an equipment rack, a first beam assembly and a second beam assembly, wherein the first beam assembly and the second beam assembly can be arranged on the equipment rack in a sliding mode along the Y direction, the first beam assembly and the second beam assembly are arranged up and down, and high-strength aluminum alloy structures are adopted as beam main bodies. A first X-axis servo motor and a first driving assembly are carried on the first beam assembly, so that the first load can move 490mm in the X direction, and the movement precision can be guaranteed to be +/-0.005 in repeated positioning precision under the conditions of acceleration of 1.2G and movement speed of 1 m/s; meanwhile, a first Y-axis servo motor and a first ball screw are arranged on the equipment rack, and the first beam assembly is driven in a unilateral driving mode, so that the movement stroke of the first beam assembly in the Y direction reaches 390mm, and the planeness in the movement stroke range of the whole X, Y direction can be controlled within 0.02. Similarly, the repeated positioning precision of the second load of the second beam assembly in the X direction and the flatness of the second beam assembly in the motion stroke range of the whole X, Y direction can both achieve the precision effect of the first beam assembly.
Therefore, the high-speed high-precision single-drive gantry structure provided by the invention can carry the first beam assembly and the second beam assembly at the same time, has good casting stability, meets the processing technology requirement of high-precision requirement, and greatly reduces precision loss caused by impact in the acceleration and deceleration process in the high-speed movement process; meanwhile, different load structures can be built on the first beam main body and the second beam main body according to the application of different equipment requirements, so that the application on the same type of equipment is realized, and certain expansibility of the equipment is guaranteed.
Drawings
FIG. 1 is a schematic view of a high speed, high precision, single drive gantry configuration of the present invention;
FIG. 2 is a schematic structural view of the equipment rack of the present invention;
FIG. 3 is a schematic structural view of a first cross-beam assembly of the present invention;
FIG. 4 is a schematic diagram of a first load of the present invention;
description of reference numerals: 1. an equipment rack; 2. a first cross beam assembly; 201. a first beam main body; 202. a first X-axis servo motor; 203. a first drive assembly; 204. a first X-axis auxiliary guide assembly; 205. a first load; 2051. a first load body; 2052. a first Z-axis servo motor; 2053. a first Z-axis drive assembly; 3. a second cross beam assembly; 4. a first Y-axis servo motor; 5. a first ball screw; 6. a first active side rail; 7. a first driven side guide rail; 8. a second Y-axis servo motor; 9. a second ball screw; 10. a second active side rail; 11. a second driven side rail.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 and 2, according to an embodiment of the present invention, a high-speed high-precision single-drive gantry structure includes an equipment rack 1, a first beam assembly 2 and a second beam assembly 3, wherein the first beam assembly 2 and the second beam assembly 3 are slidably disposed on the equipment rack, and specifically, the first beam assembly 2 and the second beam assembly 3 can move back and forth on the equipment rack 1 along a Y direction, so as to complete a high-speed stable movement process.
The equipment rack 1 comprises a first driving side guide rail 6 and a first driven side guide rail 7, the first driving side guide rail 6 and the first driven side guide rail 7 are arranged at the top of the equipment rack 1, and two ends of the first beam assembly 2 in the X direction are connected with the first driving side guide rail 6 and the first driven side guide rail 7 in a sliding mode respectively. Specifically, the first driving side guide rail 6 and the first driven side guide rail 7 are connected with the sliding block structure arranged at the bottom of the first beam assembly 2 in a matched mode, so that auxiliary supporting and guiding effects are provided for the sliding of the first beam assembly 2 in the Y direction, and the positioning accuracy of the first beam assembly 2 can be still guaranteed under the condition of high-speed movement.
Further, the equipment rack 1 further comprises a first Y-axis servo motor 4 and a first ball screw 5 which are assembled and connected with each other, wherein the first ball screw 5 and the first beam assembly 2 are slidably connected together. First ball screw 5 can convert the rotary motion of the inside rotor of first Y-axis servo motor 4 into the linear motion of the 5 body of rods of first ball screw to drive first beam assembly 2 to make a round trip movement along the 5 body of rods of first ball screw also in the Y direction, guarantee that the motion span of first beam assembly 2 reaches 1070mm, under the condition of acceleration 1.2G, movement speed 1m/s, still can guarantee the repeated positioning accuracy of ± 0.005.
Further, the equipment rack further comprises a second driving side guide rail 10 and a second driven side guide rail 11, the second driving side guide rail 10 and the second driven side guide rail 11 are arranged on two sides of the middle of the equipment rack 1 in the vertical direction, and two ends of the second beam assembly 3 in the X direction are slidably connected with the second driving side guide rail 10 and the second driven side guide rail 11 respectively. Specifically, the second driving side guide rail 10, the second driven side guide rail 11 and the slider structures arranged at the bottom of the second beam assembly 3 are connected in a matched manner, so that the second beam assembly 3 slides in the Y direction to provide auxiliary support and guide effects, and the second beam assembly 3 can still ensure the positioning accuracy under the condition of high-speed movement.
Further, the equipment rack 1 further comprises a second Y-axis servo motor 8 and a second ball screw 9 which are assembled and connected with each other, wherein the second ball screw 9 and the second beam assembly 3 are slidably connected together. Second ball screw 9 can convert the rotary motion of the inside rotor of second Y-axis servo motor 8 into the linear motion of the second ball screw 9 rod body, thereby driving second beam assembly 3 to move back and forth along the second ball screw 9 rod body, that is, in the Y direction, ensuring that the motion span of second beam assembly 3 reaches 1070mm, and still ensuring the repeated positioning accuracy of +/-0.005 under the conditions of acceleration of 1.2G and movement speed of 1 m/s.
Referring to fig. 3, according to an embodiment of the present invention, the first beam assembly 2 includes a first beam main body 201, the first beam main body 201 is fixedly provided with a first X-axis auxiliary guide assembly 204, a first X-axis servo motor 202 and a first driving assembly 203, which are assembled and connected with each other, and a bottom of the first beam main body 201 is slidably connected with the first driving side guide rail 6 and the first driven side guide rail 7, respectively. Specifically, the bottom of the first beam main body 201 is fixedly provided with a slider structure, and the slider structure is connected with the first driving side guide rail 6 and the first driven side guide rail 7 in a matching manner, so as to provide auxiliary support and guide effects for the sliding of the first beam assembly 2 in the Y direction.
Further, the first beam assembly 2 further comprises a first load 205, and the bottom of the first load 205 is slidably connected to the first driving assembly 203 and the first X-axis auxiliary guiding assembly 204 respectively. The first X-axis auxiliary guide assembly 204, the first X-axis servo motor 202 and the first driving assembly 203 which are assembled and connected with each other are disposed on the upper surface of the first beam main body 201, the first X-axis servo motor 202 and the first driving assembly 203 provide driving power for the first load 205, and the first X-axis auxiliary guide assembly 204 provides auxiliary supporting and guiding functions for the first load 205, so that the positioning accuracy of the first load 205 can be ensured even in a high-speed motion situation.
Referring to fig. 4, according to an embodiment of the invention, the first load 205 includes a first load body 2051, a first Z-axis servomotor 2052, and a first Z-axis drive assembly 2053, the first Z-axis servomotor 2052 being slidably coupled to the first load body 2051 via the first Z-axis drive assembly 2053. Specifically, the first Z-axis servo motor 2052 is connected to the first Z-axis driving component 2053 in a matching manner, and the first Z-axis servo motor 2052 drives the first Z-axis driving component 2053 to move up and down, so that the movement and positioning effects of the first load 205 in the Z direction are realized. In addition, besides the first load 205, other load structures may be disposed on the first beam assembly 2 according to different applications of equipment requirements, so as to be applied to the same type of equipment.
The second beam assembly 3 comprises a second beam main body, a second X-axis auxiliary guide assembly, a second X-axis servo motor and a second driving assembly are fixedly arranged on the second beam main body, the second X-axis servo motor and the second driving assembly are assembled and connected with each other, and the bottom of the second beam main body is slidably connected with a second driving side guide rail and a second driven side guide rail respectively. Specifically, the bottom of second crossbeam main part is fixed and is equipped with the slider structure, and this slider structure and second initiative side guide rail, the driven side guide rail cooperation of second are connected, slide in the Y direction for second crossbeam subassembly and provide auxiliary stay and guide effect.
Further, the second beam assembly further comprises a second load, and the bottom of the second load is slidably connected with the second driving assembly and the second X-axis auxiliary guide assembly respectively. The second X-axis auxiliary guide assembly, the second X-axis servo motor and the second driving assembly which are assembled and connected with each other are arranged on the upper surface of the second beam main body, the second X-axis servo motor and the second driving assembly provide driving power for the second load, the second X-axis auxiliary guide assembly provides auxiliary supporting and guiding functions for the second load, and the second load can still be guaranteed to be positioned accurately under the condition of high-speed movement.
Like the first load 205, the second load includes a second load body, a second Z-axis servomotor, and a second Z-axis drive assembly, and the second Z-axis servomotor is slidably connected to the second load body through the second Z-axis drive assembly. Specifically, the second Z-axis servo motor is connected with the second Z-axis driving assembly in a matched mode, and the second Z-axis servo motor drives the second Z-axis driving assembly to move up and down, so that the moving and positioning effects of the second load in the Z direction are achieved. In addition, the second beam assembly can be provided with other load structures besides the second load according to the application of different equipment requirements, so that the second beam assembly can be applied to the same type of equipment.
In summary, the high-speed high-precision single-drive gantry structure provided by the invention comprises an equipment frame 1, and a first beam assembly 2 and a second beam assembly 3 which can be arranged on the equipment frame 1 in a sliding manner along the Y direction, wherein the first beam assembly 2 and the second beam assembly 3 are arranged up and down, and both adopt high-strength aluminum alloy structures as beam main bodies. A first X-axis servo motor 202 and a first driving assembly 203 are carried on the first beam assembly 2, so that the first load 205 can move 490mm in the X direction, and the movement precision is guaranteed to be +/-0.005 in repeated positioning precision under the conditions of acceleration of 1.2G and movement speed of 1 m/s; meanwhile, a first Y-axis servo motor 4 and a first ball screw 5 are arranged on the equipment rack 1, and the first beam assembly 2 is driven in a unilateral driving mode, so that the movement stroke of the first beam assembly in the Y direction reaches 390mm, and the flatness in the movement stroke range of the whole X, Y direction can be controlled within 0.02. Similarly, the repeated positioning precision of the second load of the second beam assembly 3 in the X direction and the flatness of the second beam assembly 3 in the motion stroke range of the whole X, Y direction can both achieve the precision effect of the first beam assembly 2.
Therefore, the high-speed high-precision single-drive gantry structure provided by the invention can be used for simultaneously carrying the two-layer structure of the first beam assembly 2 and the second beam assembly 3, has good casting stability, meets the processing technology requirement of high-precision requirement, and greatly reduces precision loss caused by impact in the acceleration and deceleration process in the high-speed movement process; meanwhile, different load structures can be built on the first beam main body 201 and the second beam main body according to the application of different equipment requirements, so that the application on the same type of equipment is realized, and certain expansibility of the equipment is guaranteed.
Of course, the above is a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and refinements can be made without departing from the basic principle of the invention, and these modifications and refinements are also considered to be within the protective scope of the invention.
Claims (10)
1. The utility model provides a high-speed high accuracy single-wheel drive gantry structure, includes equipment rack, first beam assembly and second beam assembly, first beam assembly with second beam assembly slidable ground sets up in the equipment rack, its characterized in that, the equipment rack includes first initiative side guide rail and first driven side guide rail, first beam assembly along the both ends of X direction respectively with first initiative side guide rail first driven side guide rail sliding connection.
2. The high-speed high-precision single-drive gantry structure of claim 1, wherein the equipment rack further comprises a first Y-axis servo motor and a first ball screw which are assembled and connected with each other, and the first ball screw and the first beam assembly are slidably connected.
3. The high-speed high-precision single-drive gantry structure of claim 1, wherein the equipment rack further comprises a second driving side guide rail and a second driven side guide rail, and two ends of the second beam assembly in the X direction are slidably connected with the second driving side guide rail and the second driven side guide rail respectively.
4. A high speed high accuracy single drive gantry structure according to claim 3, wherein said equipment rack further comprises a second Y-axis servo motor and a second ball screw assembled to each other, said second ball screw and said second beam assembly being slidably connected.
5. The high-speed high-precision single-drive gantry structure of claim 2, wherein the first beam assembly comprises a first beam main body, the first beam main body is fixedly provided with a first X-axis auxiliary guide assembly, a first X-axis servo motor and a first drive assembly which are assembled and connected with each other, and the bottom of the first beam main body is slidably connected with the first driving side guide rail and the first driven side guide rail respectively.
6. The high-speed high-precision single-drive gantry structure of claim 5, wherein the first beam assembly further comprises a first load, and the bottom of the first load is slidably connected with the first drive assembly and the first X-axis auxiliary guide assembly respectively.
7. The high-speed high-precision single-drive gantry structure of claim 6, wherein the first load comprises a first load body, a first Z-axis servomotor and a first Z-axis drive assembly, and the first Z-axis servomotor is slidably connected with the first load body through the first Z-axis drive assembly.
8. The high-speed high-precision single-drive gantry structure of claim 4, wherein the second beam assembly comprises a second beam main body, the second beam main body is fixedly provided with a second X-axis auxiliary guide assembly, a second X-axis servo motor and a second drive assembly which are assembled and connected with each other, and the bottom of the second beam main body is slidably connected with the second driving side guide rail and the second driven side guide rail respectively.
9. The high-speed high-precision single-drive gantry structure of claim 8, wherein the second beam assembly further comprises a second load, and the bottom of the second load is slidably connected with the second drive assembly and the second X-axis auxiliary guide assembly respectively.
10. The high-speed high-precision single-drive gantry structure of claim 9, wherein the second load comprises a second load body, a second Z-axis servomotor and a second Z-axis drive assembly, and the second Z-axis servomotor is slidably connected with the second load body through the second Z-axis drive assembly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347557.8A CN111515705A (en) | 2020-04-28 | 2020-04-28 | High-speed high-precision single-drive gantry structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010347557.8A CN111515705A (en) | 2020-04-28 | 2020-04-28 | High-speed high-precision single-drive gantry structure |
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| CN111515705A true CN111515705A (en) | 2020-08-11 |
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