CN211997488U

CN211997488U - High-speed linear unit, two-axis high-speed platform and high-speed test track

Info

Publication number: CN211997488U
Application number: CN201922491658.8U
Authority: CN
Inventors: 曹继锋; 巫锐康; 郑泰; 唐亚军; 范文举; 刘昌勇; 宿博博; 王海鹏; 黄彬彬
Original assignee: Shenzhen Siweide Technology Co ltd
Current assignee: Shenzhen Siweide Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-24
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a high-speed sharp unit, the high-speed platform of diaxon and high-speed test track are including removing subassembly and fixed subassembly, fixed subassembly includes fixing base and linear guide, it includes drive power supply and cooperation to remove the subassembly linear guide is in order to form the straight line guide block of direction function, the fixing base indent forms and has at least one open-ended fixing base inner chamber, the drive power supply is located the inside of fixing base inner chamber can provide power for the straight reciprocating motion who removes the subassembly. The utility model discloses a high-speed sharp unit compact structure can effectively reduce vibration and noise, and performance such as speed, load, stroke and shock resistance is higher.

Description

High-speed linear unit, two-axis high-speed platform and high-speed test track

Technical Field

The utility model relates to a high-speed straight line unit, the high-speed platform of diaxon, field such as high-speed test track, in particular to high-speed track of the high-speed removal of straight line.

Background

The linear motion unit, especially a high-speed linear unit, is a basic unit for building a rectangular coordinate robot and various automatic equipment, is widely applied to the industries of precision processing machinery, precision detection machinery, automatic processing, automatic assembly, online detection, glue dispensing, spraying, medical treatment, medicines, foods, packaging, electronics, IC and the like, and is one of the indispensable important means of industrial automation and intellectualization.

With the continuous development of science and technology, people put higher demands on the performance of cartesian robots and related automation equipment, such as high speed, heavy load, high reliability, high compactness, easy operability and maintainability. As a core unit, the high speed, heavy load, high compactness, reliability, stability, operability, and easy maintainability of the high-speed linear unit are more and more important. The traditional linear motion unit has the defects of low speed, light load, high vibration and noise, low strength, poor impact resistance and the like in practical application due to the limitation of a self mechanical structure. Meanwhile, the traditional linear motion unit has short stroke due to the limitation of a section bar processing device on the section bar part of the positioning body, and the traditional linear motion unit has great negative influence on the overall performance of a rectangular coordinate robot or an automation device with the linear motion unit and finally is difficult to meet the requirements of users on high performance and high quality.

The two-axis high-speed platform based on the high-speed linear unit has one more motion axis than the high-speed linear unit, and is the simplest and most common motion system in a rectangular coordinate robot and various automatic equipment.

A high-speed test track based on a high-speed linear unit is a typical application of the high-speed linear unit or a two-axis high-speed platform, is mainly applied to a quick detection and monitoring device for various components and parts, and can realize multi-axis high-speed motion or multi-axis high-speed precise motion of a detection module or a workpiece.

In the prior art, linear motion units such as CN2011103598390 and CN2011202523710 have large vibration and noise, are not compact in structure, occupy large space, and have limited impact resistance and speed. Therefore, there is a need to develop a linear motion unit with stable mechanical structure, compact structure, low vibration and noise, high speed, heavy load, long stroke, and high impact resistance, and a two-axis high-speed platform, a high-speed test track, etc.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact structure, vibration and noise are little, high-speed motion unit and corresponding diaxon high-speed platform, high-speed test track etc. of high speed solve aforementioned problem among the prior art. Therefore, the technical scheme provided by the utility model is as follows.

In one embodiment, a high-speed linear unit is described, which is characterized by comprising a moving assembly and a fixed assembly, wherein the fixed assembly comprises a fixed seat and a linear guide rail, the moving assembly comprises a driving power source and a linear guide block which is matched with the linear guide rail to form a guide function, the fixed seat is concave inwards to form a fixed seat inner cavity with at least one opening, and the driving power source is positioned inside the fixed seat inner cavity and can provide power for the linear reciprocating movement of the moving assembly.

In one embodiment, a cross section of the inner cavity of the fixed seat perpendicular to the linear motion direction of the moving assembly has an opening and is symmetrical left and right, the line of symmetry forms a plane of symmetry along the linear motion direction of the moving assembly, an area between two planes parallel to the plane of symmetry and offset by a distance D is a middle portion of the inner cavity of the fixed seat, the distance D is not more than 30% of the maximum width of the inner cavity of the fixed seat in the left and right directions, and any one or two of the gravity center of the moving assembly, the gravity center of the driving power source, and the gravity center of a combination of members in the moving assembly, the sum of the masses of which is more than 50% of the total mass of the moving assembly, are located in.

In one embodiment, the fixing seat is a fixing frame formed by splicing straight beams and one open surface, and the cavity of the fixing frame is the inner cavity of the fixing seat.

In one embodiment, the movable assembly further comprises a movable workbench, a power source fixing seat and a transmission mechanism driving part, wherein the power source fixing seat and the transmission mechanism driving part are both located in the fixing seat inner cavity, the distance D is not greater than M percent of the left and right maximum width of the fixing seat inner cavity, and M is any one of values of 29, 28, 25, 20, 18, 15, 12, 10, 8, 5, 4, 3, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.02 and 0.01.

In one embodiment, the center of gravity of the component combination consisting of the driving power source, the power source fixing seat and the driving part of the transmission mechanism is located in the middle of the inner cavity of the fixing seat.

In another embodiment a two-axis high speed platform is described, comprising a passive motion unit and a high speed linear unit according to any of claims 1-5, the passive motion unit being fixed to the moving assembly of the high speed linear unit.

In one embodiment, the passive motion unit includes a second moving component and a second fixing component, the second fixing component is fixed to the moving component of the high-speed linear unit, and the center of gravity of the passive motion unit or the second fixing component is located in the middle of the inner cavity of the fixing seat.

In one embodiment, the second fixing component comprises a second power source and a second fixing seat, the second fixing seat is recessed to form a second fixing seat inner cavity with at least one opening, and the second power source is located inside the second fixing seat inner cavity and can provide power for linear reciprocating movement of the second moving component.

In one embodiment, the second power source is fixed to the moving component of the high-speed linear unit and is fixed relative to the driving power source of the high-speed linear unit, and a distance between the second power source and the driving power source is less than N times of a total length of the second fixing component, where N is any one of 0.25, 0.2, 0.15, 0.1, 0.05, 0.02, and 0.01.

In another embodiment, a high speed test track is described, comprising a tested auxiliary frame and a two-axis high speed platform according to any of claims 6-9, the passive motion unit of the two-axis high speed platform comprising a second moving assembly and a second stationary assembly, the tested auxiliary frame being fixedly connected to the second moving assembly.

The benefits and other advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention.

Drawings

The described embodiments will be readily understood by the following description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and the following is a detailed description of the various drawings.

Fig. 1 is a schematic view of the overall structure of a high-speed linear unit according to an embodiment of the present invention.

Fig. 2 is a one-way two-dimensional view of the high-speed linear unit of fig. 1, wherein fig. 2(a) is a front view and fig. 2(b) is a top view.

Fig. 3 is a side view of the high speed linear unit of fig. 1.

Fig. 4 is a schematic diagram of an overall structure of a two-axis high-speed platform according to an embodiment of the present invention and a high-speed test track according to another embodiment of the present invention.

Fig. 5 is a schematic structural view of the passive moving unit of the two-axis high-speed platform shown in fig. 4, wherein fig. 5(a) is a schematic structural view in a diagonally downward direction, and fig. 5(b) is a schematic structural view in a diagonally upward direction.

FIG. 6 is a top view of the passive motion unit of the two-axis high speed stage of FIG. 4.

Fig. 7 is a side view of a high speed test track in accordance with an embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view of the inner cavity of the fixing base of the high-speed linear unit according to an embodiment of the present invention, which includes four cross-sectional shapes shown in fig. 8(a), 8(b), 8(c) and 8 (d).

Detailed Description

In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the underlying principles of the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In describing embodiments, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the underlying principles.

Embodiments of the invention are described in detail below with the aid of the figures. However, those skilled in the art will appreciate that the detailed description given herein with respect to these figures is for explanatory purposes as the invention extends beyond these limited embodiments.

The utility model relates to an all left and right, upper and lower, preceding, back, medium position word or relative relation word, only for the description convenience, do not have the limiting action, the field personnel can simply alternate or adjust according to position word or relative relation word to obtain not changing the new position relation or the relative relation of the essential content of invention or technical means, should regard as the utility model discloses the technical scheme who claims equally.

All technical terms related to the present invention, which are not specifically or specially explained, refer to technical terms in the prior art documents that are the same or substantially the same as the actual functions, meanings or structures thereof, and it should be noted that the technical terms of the present invention are the corresponding technical terms in the prior art.

As shown in fig. 1, 2 and 3, a high-speed linear unit 100 according to an embodiment of the present invention includes a moving component 110 and a fixed component 120.

The fixing assembly 120 includes a fixing base 121 and a linear guide 122.

The moving assembly 110 includes a driving power source 111 and a linear guide block 116 engaged with the linear guide 122 to form a guide function.

In one embodiment, the linear guide 122 and the linear guide block 116 are standardized prior art products, i.e., linear guide, wherein the linear guide 122 is a rail of a standard linear guide, and the linear guide block 116 is a slider of a standard linear guide.

In another embodiment, the linear guide rail 122 and the linear guide block 116 are standard prior art products, i.e., linear guide shafts, wherein the linear guide rail 122 is a shaft rail of a standard linear guide shaft, and the linear guide block 116 is a shaft sleeve of a standard linear guide rail.

The moving component 110 moves linearly along the linear direction defined by the linear guide rail 122 through the guiding function formed by the linear guide block 116 and the linear guide rail 122 cooperating together.

In another embodiment, the moving component 110 moves linearly along the linear direction of the straight groove or the straight platform through the linear guide function formed by the linear guide block 116 and the straight groove or the straight platform arranged on the fixed seat 121.

The fixing seat 121 is recessed to form a fixing seat inner cavity with at least one opening, and the driving power source 111 is located inside the fixing seat inner cavity and can provide power for the linear reciprocating movement of the moving assembly 110.

In one embodiment, a cross section of the inner cavity of the fixed seat perpendicular to the linear motion direction of the moving component 110 has an opening and is symmetrical left and right, the symmetry line forms a symmetry plane along the linear motion direction of the moving component, an area between two planes parallel to the symmetry plane and offset from a distance D is a middle portion of the inner cavity of the fixed seat, the distance D is not more than 30% of the maximum left and right width of the inner cavity of the fixed seat, and any one or two of the gravity centers of a combination of components of the gravity center of the moving component 110, the gravity center of the driving power source 111, and the mass sum of the moving component 110 being more than 50% of the total mass of the moving component 110 are located in the middle portion of the inner cavity of the fixed seat.

In the concept of the middle portion of the holder cavity, the distance D indicated by the middle portion is not more than M percent of the maximum width of the holder cavity left and right, where M is typically 30. Through calculation or analysis or experimental verification, the structural characteristics, in particular the structural strength, of the fixing base 121 can be matched with the M value that is most suitable for the specific structure.

In one embodiment, M is any one of 29, 28, 25, 20, 18, 15, 12, 10, 8, 5, 4, 3, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.02, 0.01. The above M values are all some preferable M values in different materials and structural forms. The value of M can enable the high-speed linear unit 100 to obtain the best speed, load, stroke and impact resistance, and effectively reduce vibration and noise.

In the prior art, the fixing seat 121 is not recessed inwards to form a fixing seat inner cavity, or the driving power source 111 is often located outside the fixing seat inner cavity, so that the driving power source 111 needs to occupy extra space in a linear motion process, and the structure is not compact.

Compared with the prior art, the utility model discloses a drive power supply 111 is located the space that drive power supply 111 removed the in-process can be practiced thrift greatly in the inside of fixing base inner chamber occupies, makes system structure compact, can envelop or protect drive power supply 111 simultaneously unexpectedly, and need not special protection dustcoat to improve drive power supply 111's life and reliability when saving the protection dustcoat.

In the prior art, any one or two of the gravity center of the moving assembly 110, the gravity center of the driving power source 111, and the gravity center of the combination of the members of the moving assembly 110 having the sum of the masses greater than 50% of the total mass of the moving assembly 110 are not located at the middle portion of the inner cavity of the fixed base, so that the vibration and noise of the high-speed linear unit 100 are easily increased, and the speed, load, stroke, and impact resistance of the high-speed linear unit 100 are limited.

Compared with the prior art, remove subassembly 110 the focus drive power supply 111 the focus in the subassembly 110 mass sum is greater than arbitrary focus or arbitrary two focuses in the gravity center of the component combination of removal subassembly 110 total mass 50%, is located the middle part of fixing base inner chamber can make high-speed sharp unit 100 obtains best speed, load, stroke and shock resistance, effectively reduces vibration and noise.

In one embodiment, the drive power source 111 outputs rotational motion. The driving power source 111 is a standardized servo motor product with a reducer, and may also be a conventional servo motor product without a reducer, such as a torque motor.

In another embodiment, the driving power source 111 is a pneumatic motor or a hydraulic motor, and outputs a rotational motion.

The moving assembly 110 further comprises a moving table 113, a power source fixing seat 112 and a transmission mechanism driving part 114.

The movable worktable 113 is fixedly connected with the linear guide block 116 fitted to the linear guide rail 122, and is directly connected with the driving power source 111 or indirectly connected with the driving power source 111 through the power source fixing base 112, and meanwhile, the movable worktable 113 is located at an opening of an inner cavity of the fixing base, so as to reciprocate linearly along the linear guide rail 122 without being obstructed. The specific installation, manufacture and use modes refer to the prior art, and are not described herein.

The driving power source 111 of the moving assembly 110 converts the power of the driving power source 111 into a linear driving force through a transmission mechanism, thereby driving the moving assembly 110 to move linearly.

The transmission mechanism includes a transmission mechanism driving member 114 and a transmission mechanism driven member 115. The driving member 114 of the transmission mechanism is fixed or relatively fixed with respect to the driving power source 111. The transmission driving member 114 converts and transmits the power of the motive power source 111 to the transmission driven member 115, thereby converting the rotational power of the driving power source 111 into a linear driving force.

In one embodiment, the transmission is a belt transmission. The driving member 114 of the transmission mechanism is a pulley, and the driven member 115 of the transmission mechanism is a belt or a timing belt.

In one embodiment, the transmission is a chain transmission. The driving member 114 of the transmission mechanism is a sprocket, and the driven member 115 of the transmission mechanism is a chain.

In one embodiment, the transmission mechanism is a rack and pinion mechanism. The driving member 114 of the transmission mechanism is a gear, and the driven member 115 of the transmission mechanism is a rack.

In one embodiment, the power source fixing base 112 is fixedly connected to the driving power source 111, and the driving power source 111 is fixed on the movable table 113.

In one embodiment, the power source holder 112 and the driving member 114 are both located in the holder cavity. In this case, the space can be further saved, and the occupied space of the power source fixing seat 112 and the transmission driving part 114 in the linear moving process can be further reduced.

In one embodiment, the driven member 115 of the transmission mechanism is located in the cavity of the fixed base. And the space can be further saved, and the structure compactness is improved.

In one embodiment, the center of gravity of the combination of the driving power source 111, the power source holder 112 and the transmission driving member 114 is located at the middle of the inner cavity of the holder. At this time, vibration and noise are minimized during the linear movement of the moving member 110, and the high-speed linear unit 100 can obtain optimal speed, load, stroke, and shock resistance. Meanwhile, if the value of M is less than 5, vibration and noise are further reduced.

In one embodiment, the fixing base 121 is made of cast aluminum or cast iron, and the inner cavity of the fixing base may have a U-shaped cross section, a V-shaped cross section, or another cross section with an opening and left-right symmetry, as shown in fig. 8. The utility model discloses preferred type cross-section or U type cross-section.

In one embodiment, as shown in fig. 1 or fig. 2, the fixing base 121 is a fixing frame formed by splicing straight beams and having an open or open side, and a cavity of the fixing frame is an inner cavity of the fixing base. The fixing frame, namely the fixing seat 121, comprises a main beam 121-2, a vertical auxiliary beam 121-1, a transverse auxiliary beam 121-4 and a connecting block 121-3. The main beam 121-2 is parallel to the linear moving direction of the driving power source 111, the vertical auxiliary beam 121-1, the horizontal auxiliary beam 121-4 and the main beam 121-2 are orthogonal, and the right-angle connecting parts of the vertical auxiliary beam 121-1, the horizontal auxiliary beam 121-4 and the main beam 121-2 are fixedly connected through a connecting block 121-3. The fixing frame, i.e., the fixing seat 121, forms a fixing seat cavity with a section, and has an upward opening, i.e., the upper surface is provided with transverse auxiliary beams 121-4 only at the end parts of the two ends of the driving power source 111 in the linear moving direction, and the middle part is not provided with the transverse auxiliary beams 121-4.

In one embodiment, the main beam 121-2, the vertical auxiliary beam 121-1 and the horizontal auxiliary beam 121-4 are made of profiles with the same cross section.

In one embodiment, the main beam 121-2, the vertical secondary beam 121-1 and the horizontal secondary beam 121-4 are made of aluminum profiles.

In one embodiment, the connection block 121-3 is a standardized conventional product, a right angle cable.

In one embodiment, the high speed linear unit 100 further comprises an auxiliary module 130.

The auxiliary module 130 includes a position sensor. The position sensor adopts any one of a linear grating ruler, an encoder or a magnetic grating ruler in the prior art, and the specific use method and the installation mode refer to the prior art.

In one embodiment, the auxiliary module 130 includes a tow chain device 131. The drag chain device 131 adopts a standard drag chain and a drag chain box in the prior art, and the specific using method and the installation mode thereof refer to the prior art.

In one embodiment, the auxiliary module 130 includes a bump guard 132. The anti-collision device 132 is made of any one of an aluminum block, an elastic plastic block, a buffer spring, a buffer cylinder or a buffer hydraulic cylinder in the prior art.

In one embodiment, the auxiliary module 130 includes an electric cabinet 133.

In one embodiment, the electric cabinet 133 includes a driver for providing power to the driving power source 111, and a controller for providing a control interface, wherein the driver and the controller are standardized driver products and controller products in the prior art, and the specific use method and installation method refer to the prior art.

For details of other technologies related to implementing the high-speed linear unit 100, reference is made to the specific implementation of the prior art, and details are not repeated.

The utility model discloses a high-speed platform of diaxon of an embodiment, including passive motion unit 200 and high-speed sharp unit 100, passive motion unit 200 is fixed in high-speed sharp unit 100's removal subassembly 110. The two-axis high-speed platform has the advantages of compact structure, high space utilization rate and low vibration and noise in the movement direction of the high-speed linear unit 100, and can ensure that the high-speed linear unit 100 obtains higher speed, load, stroke and impact resistance.

In one embodiment, the passive motion unit 200 includes a second moving component 210 and a second fixing component 220, the second fixing component 220 is fixed to the moving component 110 of the high-speed linear unit 100, and the center of gravity of the passive motion unit 200 or the second fixing component 220 is located in the middle of the inner cavity of the fixing base. At this time, even though the passive moving unit 200 is additionally provided, the high-speed linear unit 100 still has low vibration and noise, and can still obtain high speed, load, stroke and impact resistance. The value of M in the middle of the lumen of the holder may be preferably from 0 to 20, more preferably from 0 to 5.

In one embodiment, the second fixing assembly 220 includes a second power source 221 and a second fixing base 222, the second fixing base 222 is recessed to form a second fixing base cavity having at least one opening, and the second power source 221 is located inside the second fixing base cavity and can provide power for the linear reciprocating movement of the second moving assembly 210.

In one embodiment, the second mounting bracket 222 includes a second main beam 222-1 and a second cross beam 222-2.

In one embodiment, as shown in fig. 5, the second fixing seat 222 is formed by fixedly connecting two second main beams 222-1 and two second cross beams 222-2 through a connecting block 121-3 or other fixing connection means into a square frame, and the square frame is recessed into a cavity with two upper and lower openings, i.e. an inner cavity of the second fixing seat. The fixing seat 121 of the high-speed linear unit 100 can also be implemented by adopting the technical scheme.

In one embodiment, the second power source 221 is fixed to the moving component 110 of the high-speed linear unit 100 and fixed relative to the driving power source 111 of the high-speed linear unit 100, and a distance between the second power source 221 and the driving power source 111 is less than N times of a total length of the second fixing component 220, where N is any one of 0.25, 0.2, 0.15, 0.1, 0.05, 0.02, and 0.01.

In one embodiment, the second power source 221 and the driving power source 111 are both fixed on the movable table 113, so that a special mechanical fixing part for fixing the second power source 221 is saved, the weight and energy consumption of the moving part are reduced, and the manufacturing cost, the installation cost and the operation cost of the system are effectively reduced.

In one embodiment, the second power source 221 converts the rotational power into a linear driving force through a second transmission mechanism to drive the second moving assembly 210 to move linearly. In this embodiment, a driving member of the transmission mechanism of the second transmission mechanism, such as a pulley, a sprocket, or a gear, is fixedly connected to the second power source 221, and correspondingly, a driven member of the transmission mechanism of the second transmission mechanism, such as a certain point or a certain local area on a belt, a chain, or a rack, is fixedly connected to the second moving assembly 210.

Other key technologies for implementing the passive motion unit 200 can be implemented by referring to the linear motion unit in the prior art, and can also be implemented by referring to the high-speed linear motion unit 100. For example, the second moving assembly 210 of the passive moving unit 200 also includes a second moving table 211, and the second moving table 211 is also fixedly connected to the slider of the linear guide and linearly reciprocates under the guiding action of the rail of the linear guide. The passive motion unit 200 also includes auxiliary modules, which may also include position sensors, collision avoidance devices, tow chain devices, electrical cabinets, and the like.

In one embodiment, the passive motion unit 200 is a rotational motion unit, and other specific embodiments except for the above definition refer to the rotational motion unit in the prior art, which is not described herein again.

Obviously, the passive motion unit 200 has similar technical effects as the high-speed linear unit 100, i.e. compact structure, low vibration and noise, and greatly enhanced speed and other main performances. Particularly, as shown in fig. 7, after the passive motion unit 200 and the high-speed linear unit 100 are combined into a two-axis high-speed platform, compared with a conventional two-axis high-speed platform, D1 is substantially equal to D2, the passive motion unit 200 moving at a high speed can maintain a basic balance even in the process of high-speed linear motion, no additional new vibration or twisting is added, meanwhile, only the second movable worktable 211 moves linearly left and right inside the passive motion unit 200, and the second power source 221 with a larger mass is fixed, so that the center of gravity of the passive motion unit 200 is still substantially close to the middle part of the inner cavity of the fixed seat of the high-speed linear unit 100, and therefore, the structure is further compact, vibration and noise are further reduced, the main performances such as speed, impact resistance, load, and stroke are further enhanced, and the superposition effect is unexpectedly superior. Compared with the prior art, the utility model discloses a high-speed straight line unit 100's velocity of motion can reach 2m/s to 3m/s, and vibration and noise reduce more than 30%.

As shown in fig. 4 or fig. 7, the high-speed test track according to an embodiment of the present invention includes a tested auxiliary frame 300 and the two-axis high-speed platform, the passive motion unit 200 of the two-axis high-speed platform includes a second movable component 210 and a second fixed component 220, and the tested auxiliary frame 300 is fixedly connected to the second movable component 210.

The workpiece to be tested is fixed on the auxiliary frame 300 to be tested, moves to a designated position along the linear motion direction of the high-speed linear unit 100 and the passive motion unit 200 respectively or simultaneously along with the auxiliary frame 300 to be tested at a high speed, returns to another designated position after detection is finished, and is automatically discharged.

In another embodiment, the detecting device, such as a temperature and voltage detecting device, is fixed to the auxiliary frame 300, moves to a specific position at a high speed along the linear motion direction of the high-speed linear unit 100 and the passive motion unit 200 respectively or simultaneously with the auxiliary frame 300, and returns to another specific position after the detection is completed.

Compare prior art's high-speed test track, the utility model discloses a high-speed test track can make by survey work piece or detection device at X, Y orientation or X, the high-speed steady motion of theta orientation to improve detection efficiency and detecting system operating stability by a wide margin, reduce detecting system noise and vibration.

The structural members related to the embodiments of the present invention can be made of low carbon steel, and can also be made of light metal materials such as aluminum alloy and aluminum-magnesium alloy.

The fixing connection or the fixing installation or the fixing related to the embodiments of the present invention generally refers to any suitable or feasible manner such as a screw connection, an integrated structure designed and manufactured integrally, a welding, a riveting, a hole-shaft matching connection, a bonding, a bundling connection, etc., if no special description is provided. The bearing and the bearing cap are described in relation to embodiments or configurations which are conventional and will not be described in detail nor will they be provided with drawings.

The outsourcing or other prior art that the utility model discloses the embodiment relates to may relate to some parameters, structure, size, adaptability adjustment of procedure etc. in the concrete implementation process that uses with the utility model discloses each embodiment, and these adjustment field personnel can directly reach or concrete implementation, therefore do not have the specific description to avoid obscuring the fundamental principles and the gist of the utility model.

The details and embodiments of the present invention not described in detail can be directly embodied with reference to the prior art documents and the products sold or used in public, or have been used conventionally or widely known by those skilled in the art, and the present invention only describes the main differences between the technical solutions of the present invention and the prior art, so as not to obscure the fundamental principles and the gist of the present invention.

The above examples are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable one skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

The above-mentioned embodiment is to the technical solution of the present invention has been described in detail, it should be understood that the above is only the specific embodiment of the present invention, not used for limiting the present invention, any modification, supplement or similar mode replacement etc. that the principle scope of the present invention is in should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-speed sharp unit, its characterized in that, is including removing subassembly and fixed subassembly, fixed subassembly includes fixing base and linear guide, it includes drive power source and cooperation to remove the subassembly linear guide is in order to form the straight line guide block of direction function, the fixing base indent formation has at least one open-ended fixing base inner chamber, drive power source is located the inside of fixing base inner chamber can provide power for the straight reciprocating motion who removes the subassembly.

2. The high-speed linear unit according to claim 1, wherein a cross section of the holder cavity perpendicular to the linear motion direction of the moving member has an opening and is bilaterally symmetrical, the line of symmetry forms a plane of symmetry along the linear motion direction of the moving member, an area between two planes parallel to the plane of symmetry and offset by a distance D is a middle portion of the holder cavity, the distance D is not more than 30% of a maximum width of the holder cavity in the left-right direction, and any one or two of a center of gravity of the moving member, a center of gravity of the driving power source, and a center of gravity of a combination of members of the moving member whose sum of masses is more than 50% of a total mass of the moving member is located in the middle portion of the holder cavity.

3. The high-speed linear unit according to claim 1, wherein the fixing base is a fixing frame formed by splicing straight beams and one side of the fixing frame is open, and a cavity of the fixing frame is an inner cavity of the fixing base.

4. The high-speed linear unit according to claim 2, wherein the moving assembly further comprises a moving table, a power source fixing seat and a transmission mechanism driving part, the power source fixing seat and the transmission mechanism driving part are both located in the fixing seat inner cavity, the distance D is not more than M percent of the left and right maximum width of the fixing seat inner cavity, and M is any one of 29, 28, 25, 20, 18, 15, 12, 10, 8, 5, 4, 3, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.02 and 0.01.

5. The high-speed linear unit according to claim 4, wherein the center of gravity of the combination of the driving power source, the power source holder and the transmission driving member is located at the middle part of the holder cavity.

6. Two-axis high-speed platform, comprising a passive motion unit and a high-speed linear unit according to any of claims 1-5, the passive motion unit being fixed to the moving assembly of the high-speed linear unit.

7. The two-axis high-speed platform of claim 6, wherein the passive motion unit comprises a second moving assembly and a second fixed assembly, the second fixed assembly is fixed to the moving assembly of the high-speed linear unit, and the center of gravity of the passive motion unit or the second fixed assembly is located in the middle of the inner cavity of the fixed base.

8. The two-axis high-speed platform of claim 7, wherein the second stationary assembly comprises a second power source and a second stationary base, the second stationary base being recessed to form a second stationary base cavity having at least one opening, the second power source being located within the second stationary base cavity and being capable of providing power for linear reciprocating movement of the second moving assembly.

9. The two-axis high-speed platform of claim 8, wherein the second power source is fixed to the moving component of the high-speed linear unit and fixed relative to the driving power source of the high-speed linear unit, and the distance between the second power source and the driving power source is less than N times of the total length of the second fixed component, where N is any one of 0.25, 0.2, 0.15, 0.1, 0.05, 0.02, and 0.01.

10. A high-speed test track comprising a tested auxiliary frame and a two-axis high-speed platform according to any one of claims 6 to 9, wherein the passive motion unit of the two-axis high-speed platform comprises a second moving assembly and a second fixed assembly, and the tested auxiliary frame is fixedly connected to the second moving assembly.