CN210487205U - Rigidity test experimental device of air-float guide rail - Google Patents
Rigidity test experimental device of air-float guide rail Download PDFInfo
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- CN210487205U CN210487205U CN201921337206.8U CN201921337206U CN210487205U CN 210487205 U CN210487205 U CN 210487205U CN 201921337206 U CN201921337206 U CN 201921337206U CN 210487205 U CN210487205 U CN 210487205U
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Abstract
The utility model belongs to the technical field of test equipment, a rigidity test experimental apparatus of air supporting guide rail is disclosed, including the base of placing the air supporting guide rail, install the manual loading subassembly on the base and be located between air supporting guide rail and the manual loading subassembly and the butt in the pressure sensor of air supporting guide rail. The utility model discloses, after the air supporting guide rail ventilates, the manual loading subassembly of manual operation, make its orientation towards the base give the air supporting guide rail loading, at this moment, pressure sensor can sense the load value that the air supporting guide rail bore, measuring device also can measure the clearance value between air supporting guide rail and the base, and read the load value of pressure sensor response, so, increase the load value uniformly and carry out repeated measurement many times, and the clearance value that each load value of record corresponds, with this according to multiunit load value and clearance value, obtain the actual rigidity value of air supporting guide rail. The rigidity testing experimental device for the air floatation guide rail is simple in structure, simple to operate, economical, practical and high in experimental efficiency.
Description
Technical Field
The utility model relates to a test equipment technical field especially relates to a rigidity test experimental apparatus of air supporting guide rail.
Background
Compared with a transmission ball guide rail, the air-float guide rail has the characteristics of small friction, high movement precision and the like, and is widely applied to ultra-precise work. However, the rigidity of the air rail is weak, which easily affects the stability of the moving platform, so that the rigidity needs to be designed reasonably. Obviously, the stiffness of the air-floating guide rail is a key technical index of the air-floating guide rail. At present, people think that a certain error exists between the actual rigidity and the theoretical rigidity of the air-floating guide rail, so in order to accurately know the rigidity of the air-floating guide rail in practical application and ensure the stability of a motion platform, an experimental test needs to be carried out on the actual rigidity so as to compare and verify the rigidity data of the experimental test with the theoretical rigidity data.
Therefore, it is necessary to provide a stiffness testing experimental apparatus for an air-floating guide rail.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a rigidity test experimental apparatus of air supporting guide rail for solve people and be difficult to accurately know the technical problem of air supporting guide rail rigidity in practical application.
In order to solve the technical problem, the utility model discloses a technical scheme is: the rigidity test experiment device for the air-floating guide rail comprises:
the air floatation guide rail is placed on the base and can float above the base;
the manual loading assembly is arranged on the base and is positioned right above the air floatation guide rail, and the manual loading assembly is used for loading the air floatation guide rail towards the direction of the base;
the pressure sensor is positioned between the air floatation guide rail and the manual loading assembly, abuts against the air floatation guide rail and is used for sensing a load value borne by the air floatation guide rail; and the number of the first and second groups,
the measuring device is used for measuring a gap value between the air-float guide rail and the base when the air-float guide rail floats, and is used for reading the load value sensed by the pressure sensor.
In one embodiment, the manual loading assembly comprises:
the linear guide and shift assembly is vertically arranged on the base and spans the air floatation guide rail; and
the adjusting screw piece is provided with a knob end and a pressing end, and the middle part between the knob end and the pressing end of the adjusting screw piece is in threaded connection with the linear guide moving assembly and is positioned right above the air floatation guide rail;
under the guidance of the linear guide component, the pressing end can push the pressure sensor to approach the base through the relative rotation of the adjusting screw piece and the linear guide component.
In one embodiment, the linear translation assembly includes:
the linear guide rods are provided with at least one pair, and each pair of linear guide rods is vertically arranged on the top surface of the base;
the linear bearings are sleeved on the corresponding linear guide rods;
the fixed beam stretches across the air floatation guide rail, and two opposite linear guide rods are respectively inserted into two ends of the fixed beam; the fixed beam is in threaded connection with the adjusting screw;
the fixed beam can do linear movement along the linear guide rod and is locked on the linear guide rod.
In one embodiment, a screw of the adjusting screw is provided with a fine thread external thread, a middle portion of the fixed beam is provided with a connecting hole in the thickness direction of the fixed beam, the connecting hole is provided with a fine thread internal thread, and the fine thread external thread is in threaded connection with the fine thread internal thread.
In one embodiment, the two ends of the fixed beam are respectively provided with an inserting hole in the height direction of the base, and each linear guide rod is inserted into the corresponding inserting hole;
adjusting openings are respectively formed in the two ends of the fixed beam in the length direction of the fixed beam, and each adjusting opening is communicated with the corresponding plug hole;
fastening holes are respectively formed in the two ends of the fixed beam in the length direction of the air floatation guide rail, and each fastening hole is communicated with the corresponding adjusting opening;
two ends of the fixed beam are respectively inserted into the corresponding fastening holes through fixing pieces so as to lock and fix the corresponding linear guide rods.
In one embodiment, the fixed beam is perpendicular to the air floatation guide rail, and the adjusting screw is arranged in the middle of the fixed beam.
In one embodiment, the manual loading assembly further comprises:
the movable bridge stretches across the air floatation guide rail above the air floatation guide rail and is parallel to the fixed beam, and the top surface of the movable bridge is abutted with the linear bearing and the abutting end of the adjusting screw piece;
the pressure sensor is positioned below the mobile bridge and is abutted against the bridge bottom surface of the mobile bridge.
In one embodiment, the manual loading assembly further comprises:
the cushion seat is arranged on the bridge top surface of the mobile bridge and is provided with a groove;
the abutting end of the adjusting screw is embedded in the groove.
In one embodiment, the manual loading assembly further comprises:
the fixing seats are arranged on the top surface of the base, are positioned between the movable bridge and the base and support the movable bridge.
In one embodiment, the measuring device is a dial indicator.
Implement the embodiment of the utility model provides a rigidity test experimental apparatus of air supporting guide rail will have following beneficial effect:
the rigidity test experimental device of the air-floating guide rail is characterized in that a manual loading assembly is arranged on a base, the air-floating guide rail is placed on the base, a pressure sensor is positioned between the air-floating guide rail and the manual loading assembly and is abutted against the air-floating guide rail, thus, after the air-floating guide rail is ventilated, the manual loading assembly can be manually operated to load the air-floating guide rail towards the base, the pressure sensor can sense the load value borne by the air-floating guide rail, a measuring device can also be used for measuring the gap value between the air-floating guide rail and the base and reading the load value sensed by the pressure sensor, so that repeated measurement is carried out for many times, understandably, when the load value is uniformly increased according to a certain amplitude, the gap value corresponding to each load value is recorded, a plurality of groups of load values and gap values can be obtained, and the curve relation between the load value and the gap value of the air-floating guide rail can be, and then the actual rigidity value of the air floatation guide rail is obtained. Generally, this rigidity test experimental apparatus of air supporting guide rail's simple structure, correspondingly test operation is also simple, and the manual regulation test need not drive unit such as cylinder, servo motor, and economical and practical, and the experimental efficiency is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
fig. 1 is a schematic perspective view of a rigidity testing experimental apparatus for an air-float guide rail according to an embodiment of the present invention;
FIG. 2 is a front view of the experimental apparatus for testing stiffness of the air-bearing guide rail in FIG. 1;
FIG. 3 is a top view of the experimental apparatus for testing stiffness of the air-float guide rail of FIG. 1 with the base removed;
fig. 4 is a partially enlarged view of a portion a in fig. 3.
The reference numbers in the drawings are as follows:
1. a rigidity test experimental device of the air floatation guide rail; 10. an air-float guide rail;
100. a base;
200. a manual loading assembly; 210. a linear guide component; 211. a linear guide rod; 212. a linear bearing; 213. a fixed beam; 2131. adjusting the opening; 2132. a fastening hole; 220. adjusting the screw; 221. a knob end; 222. a pressing end;
300. a pressure sensor;
400. measuring device/dial gauge; 500. a mobile bridge;
600. a pad seat; 610. a groove; 700. a fixed seat; 800. and (7) installing the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "fixed to" or "mounted to" or "provided on" or "connected to" another element, it can be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or position based on the orientation or position shown in the drawings, are for convenience of description only, and are not to be construed as limiting the present disclosure.
Furthermore, the terms "first" and "second" are used for convenience of description only and are not to be construed as indicating or implying relative importance or implying any number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise. In general, the specific meanings of the above terms will be understood by those of ordinary skill in the art as appropriate.
The following describes in detail the implementation of the stiffness testing experimental apparatus for an air-floating guide rail according to the present invention with reference to fig. 1 to 4.
As shown in fig. 1 to 3, the experimental apparatus 1 for testing stiffness of an air rail includes a base 100, a manual loading assembly 200, a pressure sensor 300, and a measuring device 400. Wherein, an air-float guide rail 10 is placed on the base 100, and the air-float guide rail 10 can float above the base 100. Specifically, the air rail 10 may be ventilated before testing by connecting an external compressed air source at an interface (not shown) of the air rail 10, so that the air rail 10 can be suspended above the base 100. It should be noted that, in the embodiment, the base 100 is usually made of marble material, that is, the marble base 100, so as to ensure that the base 100 has higher flatness and smoothness, and has sufficient rigidity, and the like, thereby ensuring that the air rail 10 and the base 100 are in good contact, and the base 100 is not easily deformed when the air rail 10 is loaded, further ensuring the stability of the gap between the air rail 10 and the base 100, and finally ensuring that the rigidity test experiment device 1 of the air rail can normally work.
As shown in FIGS. 1 and 2, the manual loading assembly 200 is mounted on the base 100, and the manual loading assembly 200 is located directly above the air rail 10, wherein the manual loading assembly 200 is mainly used for loading the air rail 10 toward the base 100. The pressure sensor 300 is located between the air rail 10 and the manual loading assembly 200, and the pressure sensor 300 abuts against the air rail 10, wherein the pressure sensor 300 is mainly used for sensing a load value borne by the air rail 10. Correspondingly, the measuring device 400 is mainly used for measuring the clearance value between the air rail 10 and the base 100 when the air rail 10 floats, and for reading the load value sensed by the pressure sensor 300.
It can be understood that, in this embodiment, the working principle of the experimental apparatus 1 for testing the stiffness of the air rail mainly includes: before testing, the air-floating guide rail 10 is ventilated to ensure that the air-floating guide rail 10 is suspended above the base 100; then, the manual loading assembly 200 loads the air floating rail 10 in a direction toward the base 100 (specifically, a direction from top to bottom), at this time, because the pressure sensor 300 is located between the manual loading assembly 200 and the air floating rail 10, the pressure sensor 300 can accurately sense that the air floating rail 10 bears a load value loaded from the manual loading assembly 200, correspondingly, the load value borne by the air floating rail 10 can be read by the measuring device 400, and a gap value between the air floating rail 10 and the base 100 borne at this time can also be measured by the measuring device 400 (for convenience, the gap is referred to as an air floating gap value, where the air floating gap value is smaller than an original gap between the air floating rail 10 and the base 100 after being ventilated in an initial state);
thus, it can be understood that, by repeatedly adjusting the manual loading assembly 200 for a plurality of times, the load borne by the air rail 10 is uniformly increased or decreased according to a certain range, and the air gap values corresponding to the load values are recorded, so as to obtain a plurality of sets of corresponding numerical values, obviously, according to the obtained plurality of sets of numerical values, a relationship curve between the load value of the air rail 10 and the air gap value between the air rail 10 and the base 100 can be established, and finally, the stiffness value of the air rail 10 can be obtained.
It should be noted that, in the present embodiment, in order to accurately measure the load value of the air rail 10 and conveniently record the load value, the pressure sensor 300 may be a high-precision digital pressure sensor 300. In addition, the measuring device 400 may preferably be a dial gauge to more conveniently and accurately read the load value of the air rail 10 and the clearance value between the air rail 10 and the base 100.
In one embodiment, as shown in fig. 1-3, to enable loading of the air-float rail 10, the manual loading assembly 200 includes a linear translation assembly 210 and an adjustment screw 220. In the embodiment, the linear guide and shift assembly 210 mainly plays a role of guiding up and down for loading the load of the following adjusting screw 220, so as to ensure that the adjusting screw 220 is loaded vertically and downwards, and prevent the whole device from sideslipping.
As shown in fig. 1 and fig. 2, the adjusting screw 220 has a knob end 221 and a pressing end 222, wherein a middle portion between the knob end 221 and the pressing end 222 of the adjusting screw 220 is screwed to the linear guide assembly 210, and the adjusting screw 220 is located right above the air rail 10. Under the guidance of the linear motion guiding assembly 210, the pressing end 222 can push the pressure sensor 300 to approach the base 100 by the relative rotation of the adjusting screw 220 and the linear motion guiding assembly 210.
It is understood that the adjusting screw 220 can be rotated relative to the linear guide assembly 210 by manually rotating the knob end 221 of the adjusting screw 220, and the pressing end 222 of the adjusting screw 220 can push the pressure sensor 300 to approach (i.e., move downward) the base 100, thereby applying a load to the air rail 10.
In one embodiment, as shown in fig. 1 and 2, the linear guide assembly 210 includes a linear guide 211, a linear bearing 212, and a fixed beam 213. In order to simplify the structure, the linear guide rods 211 are provided with at least one pair, and in this embodiment, each pair of linear guide rods 211 is vertically provided on the top surface of the base 100, and the linear bearings 212 are sleeved on the bottom ends of the corresponding linear guide rods 211, so that the linear bearings 212 are used as guiding units, and the loading direction of the adjusting screw 220 can be ensured to be vertically downward. As shown in fig. 1 and 2, the fixed beam 213 crosses the air rail 10, and two opposite linear guide rods 211 are respectively inserted into two ends of the fixed beam 213, and it can be understood that, in the present embodiment, a gantry structure is formed among the fixed beam 213, the two linear guide rods 211, and the two linear bearings 212.
Specifically, in the present embodiment, as shown in fig. 1 and 2, the fixed beam 213 is perpendicular to the air rail 10, and the adjusting screw 220 is disposed at a middle position of the fixed beam 213. Thus, the adjusting screw 220 can load the central position of the air rail 10 suspended on the base 100. Specifically, the ventilated air rail 10 may be directly placed under the pressure sensor 300, and the center of the air rail 10 may be aligned with the measuring head of the pressure sensor 300, so as to ensure that the center of the air rail 10 is loaded.
In this embodiment, the adjusting screw 220 is screwed to the fixed beam 213, so that the rod of the adjusting screw 220 can be moved downward relative to the fixed beam 213 to load the air-float guide rail 10 by manually adjusting the adjusting screw 220. Specifically, a fine external thread is formed on the screw of the adjusting screw 220, a connecting hole is formed in the middle of the fixing beam 213 in the thickness direction (specifically, in the up-down direction) of the fixing beam 213, a fine internal thread is formed in the connecting hole, and the fine external thread is in threaded connection with the fine internal thread. Thus, the pressure sensor 300 can be slightly moved up and down by slowly tightening the adjusting screw 220 (e.g., a bolt) to compress the air rail 10 for uniform loading. It can be understood that the fine thread connection structure is mainly used to ensure that the adjusting screw 220 can micro-adjust the load of the air rail 10, so as to ensure the accuracy of the rigidity test of the air rail 10.
In addition, in the embodiment, the fixing beam 213 can move linearly along the linear guide 211, and the fixing beam 213 can be fastened to the linear guide 211 by a fastener. It will be appreciated that, depending on the actual size of the air rail 10, the fixed beam 213 may be adjusted along the linear guide 211 to a suitable height of the linear guide 211, and the fixed beam 213 may be fastened to the linear guide 211 by fasteners.
Specifically, in the present embodiment, as shown in fig. 1 and fig. 2, insertion holes (not shown) are respectively formed at two ends of the fixing beam 213 in a height direction (specifically, an up-down direction) of the base 100, wherein each linear guide rod 211 is inserted into the corresponding insertion hole. As shown in fig. 1, 3 and 4, the two ends of the fixed beam 213 are respectively opened with an adjusting opening 2131 in the length direction of the fixed beam 213, wherein each adjusting opening 2131 is communicated with a corresponding plug hole. Correspondingly, as shown in fig. 1 and fig. 2, fastening holes 2132 are respectively formed in two ends of the fixing beam 213 in the length direction of the air rail 10, wherein each fastening hole 2132 is communicated with a corresponding adjusting opening 2131, and two ends of the fixing beam 213 can be respectively inserted into the corresponding fastening holes 2132 through fixing members (specifically, screws) to lock the corresponding linear guide rods 211.
It can be understood that both ends of the fixed beam 213 adopt a movable clamping structure, wherein, before testing, the fixed beam 213 can be moved along the linear guide 211 (i.e. the linear guide 211 is movably inserted into the corresponding insertion hole) to be adjusted to a suitable height according to the specific size of the air rail 10, and then a fixing member (specifically, a screw) is inserted into the corresponding fastening hole 2132 to adjust and reduce the size of the corresponding adjustment opening 2131, and the fixed beam 213 is locked at the suitable height of the linear guide 211. Obviously, the experimental device 1 for testing the rigidity of the air rail is also understandably suitable for testing the rigidity of the air rail 10 with various sizes and models.
In one embodiment, as shown in fig. 1 and 2, the manual loading assembly 200 further includes a moving bridge 500, wherein the moving bridge 500 crosses the air rail 10 above the air rail 10 and is parallel to the fixed beam 213, and the top surface of the moving bridge 500 abuts against the linear bearing 212 and the pressing end 222 of the adjusting screw 220; the pressure sensor 300 is located below the moving bridge 500 and abuts against the bridge bottom surface of the moving bridge 500.
Specifically, in the present embodiment, the manual loading assembly 200 further includes a pad 600 and a mounting block 800, wherein the pad 600 is disposed on the bridge top surface of the mobile bridge 500, the pad 600 is provided with a groove 610, and the pressing end 222 of the adjusting screw 220 is embedded in the groove 610. In this way, the adjusting screw 220 abuts against the moving bridge 500 through the pad 600, instead of directly abutting against the moving bridge 500, whereby the contact area of the adjusting screw 220 and the moving bridge 500 can be increased, thereby ensuring stability and uniformity of load application. In addition, the pressure sensor 300 is mounted on the bridge bottom surface of the moving bridge 500 through the mounting block 800. It can be understood that, by manually and slowly screwing the adjusting screw 220, the cushion 600, the movable bridge 500, the mounting block 800 and the pressure sensor 300 can simultaneously make micro-movements along the vertical downward direction by the abutting of the adjusting screw 220, so as to realize the proper loading of the air-floating guide rail 10.
In one embodiment, as shown in fig. 1 and 2, the manual loading assembly 200 further includes a plurality of holders 700, wherein each holder 700 is installed on the top surface of the base 100, and each holder 700 is located between the moving bridge 500 and the base 100 and supports the moving bridge 500. Specifically, in the embodiment, two fixing bases 700 are provided, and both the two fixing bases 700 are parallel to the air rail 10 and located at two sides of the air rail 10 respectively. Therefore, the stability of loading of the air floatation guide rail 10 is ensured, and the stability of the rigidity test experiment device 1 of the air floatation guide rail is improved.
As can be seen from the above, in the present embodiment, the test principle or the test procedure of the experimental apparatus 1 for testing the stiffness of the air rail is substantially as follows:
(1) after ventilation, the air-floating guide rail 10 is placed under the pressure sensor 300, and the center of the air-floating guide rail 10 is aligned with a measuring head of the pressure sensor 300, so as to ensure that the load is loaded at the center position of the air-floating guide rail 10;
(2) manually and slowly screwing the bolts, so that the movable bridge 500, the mounting block 800 and the pressure sensor 300 vertically move downwards slightly to press the air-floating guide rail 10 from the upper part, and the air-floating guide rail 10 is loaded;
(3) measuring an air floatation gap value between the air floatation guide rail 10 and the marble base 100 by using a dial indicator, and simultaneously reading and recording a load value of the pressure sensor 300 by using the dial indicator;
(4) and repeatedly screwing the bolts for many times to enable the load to be uniformly increased according to a certain range, recording the air floatation gap value corresponding to each load value, thus obtaining a plurality of groups of load values and air floatation gap values, forming a curve chart between the load value and the air floatation gap value of the air floatation guide rail 10, and finally obtaining the actual rigidity value of the air floatation guide rail 10 according to the curve chart obtained by the experiment.
Correspondingly, the rigidity test experimental device 1 of the air-floatation guide rail at least has the following characteristics:
(1) the actual load value and the air-floating clearance value (i.e. the size of the clearance between the air-floating guide rail 10 and the base 100) of the air-floating guide rail 10 can be accurately measured in a manual loading mode without driving elements such as an air cylinder and a servo motor, and the actual stiffness value of the air-floating guide rail 10 can be obtained through a relation curve between the actual load value and the air-floating clearance value of the air-floating guide rail 10; therefore, the device is economical and practical, has high overall test precision, simple and reliable structure and simple operation, and is beneficial to improving the experimental efficiency;
(2) the height adjusting device has the height adjusting function, is suitable for rigidity test experiments of the air floatation guide rail 10 with various sizes and specifications, and has strong universality.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a rigidity test experimental apparatus of air supporting guide rail which characterized in that includes:
the air floatation guide rail is placed on the base and can float above the base;
the manual loading assembly is arranged on the base and is positioned right above the air floatation guide rail, and the manual loading assembly is used for loading the air floatation guide rail towards the direction of the base;
the pressure sensor is positioned between the air floatation guide rail and the manual loading assembly, abuts against the air floatation guide rail and is used for sensing a load value borne by the air floatation guide rail; and the number of the first and second groups,
the measuring device is used for measuring a gap value between the air-float guide rail and the base when the air-float guide rail floats, and is used for reading the load value sensed by the pressure sensor.
2. The experimental apparatus for testing the stiffness of the air rail according to claim 1, wherein the manual loading assembly comprises:
the linear guide and shift assembly is vertically arranged on the base and spans the air floatation guide rail; and
the adjusting screw piece is provided with a knob end and a pressing end, and the middle part between the knob end and the pressing end of the adjusting screw piece is in threaded connection with the linear guide moving assembly and is positioned right above the air floatation guide rail;
under the guidance of the linear guide component, the pressing end can push the pressure sensor to approach the base through the relative rotation of the adjusting screw piece and the linear guide component.
3. The experimental apparatus for testing the rigidity of the air-bearing guide rail according to claim 2, wherein the linear guide moving assembly comprises:
the linear guide rods are provided with at least one pair, and each pair of linear guide rods is vertically arranged on the top surface of the base;
the linear bearings are sleeved on the corresponding linear guide rods;
the fixed beam stretches across the air floatation guide rail, and two opposite linear guide rods are respectively inserted into two ends of the fixed beam; the fixed beam is in threaded connection with the adjusting screw;
the fixed beam can do linear movement along the linear guide rod and is locked on the linear guide rod.
4. The experimental device for testing the rigidity of the air-floating guide rail according to claim 3, wherein a screw of the adjusting screw is provided with a fine thread external thread, the middle part of the fixed beam is provided with a connecting hole in the thickness direction of the fixed beam, a fine thread internal thread is arranged in the connecting hole, and the fine thread external thread is in threaded connection with the fine thread internal thread.
5. The experimental device for testing the rigidity of the air-floating guide rail according to claim 3, wherein insertion holes are respectively formed in the two ends of the fixed beam in the height direction of the base, and each linear guide rod is inserted into the corresponding insertion hole;
adjusting openings are respectively formed in the two ends of the fixed beam in the length direction of the fixed beam, and each adjusting opening is communicated with the corresponding plug hole;
fastening holes are respectively formed in the two ends of the fixed beam in the length direction of the air floatation guide rail, and each fastening hole is communicated with the corresponding adjusting opening;
two ends of the fixed beam are respectively inserted into the corresponding fastening holes through fixing pieces so as to lock and fix the corresponding linear guide rods.
6. The experimental device for testing the rigidity of the air-bearing guide rail as claimed in claim 5, wherein the fixed beam is perpendicular to the air-bearing guide rail, and the adjusting screw is disposed at a middle position of the fixed beam.
7. The experimental apparatus for testing the stiffness of the air rail according to any one of claims 3 to 6, wherein the manual loading assembly further comprises:
the movable bridge stretches across the air floatation guide rail above the air floatation guide rail and is parallel to the fixed beam, and the top surface of the movable bridge is abutted with the linear bearing and the abutting end of the adjusting screw piece;
the pressure sensor is positioned below the mobile bridge and is abutted against the bridge bottom surface of the mobile bridge.
8. The experimental apparatus for testing the stiffness of the air rail according to claim 7, wherein the manual loading assembly further comprises:
the cushion seat is arranged on the bridge top surface of the mobile bridge and is provided with a groove;
the abutting end of the adjusting screw is embedded in the groove.
9. The experimental apparatus for testing the stiffness of the air rail according to claim 7, wherein the manual loading assembly further comprises:
the fixing seats are arranged on the top surface of the base, are positioned between the movable bridge and the base and support the movable bridge.
10. The experimental device for testing the rigidity of the air-bearing guide rail according to any one of claims 1 to 6, characterized in that the measuring device is a dial indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337206.8U CN210487205U (en) | 2019-08-14 | 2019-08-14 | Rigidity test experimental device of air-float guide rail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337206.8U CN210487205U (en) | 2019-08-14 | 2019-08-14 | Rigidity test experimental device of air-float guide rail |
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| CN210487205U true CN210487205U (en) | 2020-05-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441330A (en) * | 2022-02-07 | 2022-05-06 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Air floatation rigidity loading device, air floatation rigidity testing equipment and air floatation rigidity testing method |
| CN117740343A (en) * | 2023-11-24 | 2024-03-22 | 北京精雕科技集团有限公司 | Device and method for measuring tangential stiffness of joint of sliding part |
-
2019
- 2019-08-14 CN CN201921337206.8U patent/CN210487205U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441330A (en) * | 2022-02-07 | 2022-05-06 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Air floatation rigidity loading device, air floatation rigidity testing equipment and air floatation rigidity testing method |
| CN114441330B (en) * | 2022-02-07 | 2023-09-22 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Air floatation stiffness loading device, air floatation stiffness testing equipment and air floatation stiffness testing method |
| CN117740343A (en) * | 2023-11-24 | 2024-03-22 | 北京精雕科技集团有限公司 | Device and method for measuring tangential stiffness of joint of sliding part |
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