Two-dimensional motion platform for measuring stress of large-diameter glass

Abstract

The utility model discloses a two-dimensional motion platform for large-aperture glass stress measurement, which comprises a base and a vertical displacement platform, the base is provided with a transverse linear module and an object placing platform, the transverse linear module is connected with the object placing platform and drives the object placing platform to move horizontally and linearly, and the vertical displacement platform is arranged on the base and is positioned on the side surface of the object placing platform. The vertical displacement table is provided with a stress sensor and a longitudinal linear module, the stress sensor is used for detecting glass stress, and the longitudinal linear module is connected with the stress sensor and drives the stress sensor to move vertically and linearly. The stress distribution conditions of different height positions of the glass can be obtained, the stress measurement requirement of the large-caliber thickness glass can be met, and automatic detection is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass measurement, and in particular relates to a two-dimensional motion platform for large-caliber glass stress measurement. Background Art

[0002] Quartz glass is an amorphous product formed by high-temperature melting, deposition, and cooling. At present, the production of quartz glass mainly includes five stages: heating, melting, deposition, cooling, and annealing. During the cooling process, the temperature changes of various parts of quartz glass cannot be kept uniform, that is, a temperature gradient will be generated. The existence of the temperature gradient will cause thermal stress in quartz glass. The existence of thermal stress in quartz glass will greatly reduce the performance of quartz glass. Excessive stress may even cause defects such as cracks in the local part of quartz glass, which cannot meet the needs of the industry. At the same time, stress is an important performance parameter of quartz glass, and its distribution will affect the properties of optical components, thereby causing the performance of the optical system to decline. Therefore, the accurate measurement of residual stress in quartz glass and the judgment of its size and distribution law play an important role in the development of the country's industry, scientific research, production and other fields.

[0003] The existing glass stress measurement device is unable to effectively detect the stress conditions at multiple points of the glass. The testing process is relatively cumbersome and cannot meet the demand for large-diameter glass stress measurement. Utility Model Content

[0004] The purpose of the utility model is to solve at least one problem of the prior art and to provide a two-dimensional motion platform for large-caliber glass stress measurement.

[0005] To achieve the above-mentioned purpose, the utility model proposes a two-dimensional motion platform for large-diameter glass stress measurement, including a base and a vertical displacement platform. The base is equipped with a transverse linear module and a storage table. The transverse linear module is connected to the storage table and drives the storage table to move horizontally linearly. The vertical displacement platform is installed on the base and is located on the side of the storage table. The vertical displacement platform is equipped with a stress sensor for detecting glass stress and a longitudinal linear module. The longitudinal linear module is connected to the stress sensor and drives the stress sensor to move vertically linearly.

[0006] Preferably, the number of the vertical translation platforms is 2, and the two vertical translation platforms are symmetrically installed on both sides of the storage platform.

[0007] Preferably, the vertical translation platform is provided with a right-angle bracket, and the bottom of the right-angle bracket is connected to the base.

[0008] Preferably, a plurality of supporting feet are installed at the bottom of the base.

[0009] Preferably, a lifting lug is provided on the side of the base.

[0010] Preferably, the transverse linear module is a screw slider module or a screw slide module, and the storage platform is connected to the slider of the screw slider module or the slide of the screw slide module.

[0011] Preferably, the longitudinal linear module is a screw slider module or a screw slide module, and the stress sensor is connected to a slider of the screw slider module or a slide of the screw slide module.

[0012] Preferably, a baffle is provided on the outer edge of the upper end of the storage table.

[0013] Beneficial effects of the utility model: the utility model drives the storage platform to move to the vicinity of the stress sensor through the horizontal linear module, and drives the stress sensor to move up and down at a uniform speed through the longitudinal linear module, so that the stress sensor tests the stress size of the glass at different heights and obtains the stress distribution of the glass at different heights. It can meet the stress measurement requirements of large-diameter and thick glass and realize automatic detection.

[0014] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is the front view of the embodiment of the utility model.

[0017] Figure 3 It is a right side view of an embodiment of the utility model.

[0018] Figure 4 It is a top view of an embodiment of the utility model.

[0019] In the figure: 1-base, 2-lateral linear module, 3-storage table, 4-vertical translation table, 5-stress sensor, 41-longitudinal linear module, 42-right angle bracket. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described in conjunction with the drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. The components of the embodiment of the present application described and shown in the drawings here can be arranged and designed in various different configurations. In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship usually placed when the application product is used, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] The utility model is described in detail below in conjunction with the accompanying drawings.

[0023] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The present embodiment provides a two-dimensional motion platform for large-aperture glass stress measurement, including a base 1 and a vertical translation platform 4. The base 1 is equipped with a transverse linear module 2 and a storage platform 3. The transverse linear module 2 is connected to the storage platform 3 and drives the storage platform 3 to move horizontally linearly. The vertical translation platform 4 is vertically installed on the base 1 and is located on the side of the storage platform 3. The vertical translation platform 4 is equipped with a stress sensor for detecting glass stress and a longitudinal linear module 41. The longitudinal linear module 41 is connected to the stress sensor 5 and drives the stress sensor 5 to move vertically linearly.

[0024] The base 1 is made of marble, the storage table 3 is used to place the glass to be measured for stress, the base 1 is provided with a dust cover, the stress sensor 5 is connected to the computer terminal, and the stress sensor is an existing non-contact pressure sensor.

[0025] In this embodiment, the number of the vertical translation stages 4 is two, and the two vertical translation stages 4 are symmetrically installed on both sides of the placement platform 3 .

[0026] In this embodiment, a right-angle bracket 42 is disposed on the back of the vertical translation stage 4 , and the bottom of the right-angle bracket 42 is connected to the base 1 .

[0027] In this embodiment, a plurality of supporting legs are installed at the bottom of the base 1 , and the number of the supporting legs includes but is not limited to 4, 6 or 8.

[0028] In this embodiment, a lifting lug is provided on the side of the base 1 to facilitate the lifting of the device.

[0029] In this embodiment, the transverse linear module 2 is a screw slider module or a screw slide module, and the storage platform 3 is connected to the slider of the screw slider module or the slide of the screw slide module. Preferably, the transverse linear module is a screw slider module, which includes a workbench, a screw, a motor, a slider, and a guide rail installed on the workbench. The slider is slidably installed on the guide rail. The output end of the motor is connected to the screw with a reducer. The screw is installed with a nut seat, and the nut seat and the slider are both connected to the storage platform 3.

[0030] In this embodiment, the longitudinal linear module 41 is a screw slider module or a screw slide module, and the stress sensor 5 is connected to the slider of the screw slider module or the slide of the screw slide module.

[0031] In this embodiment, a baffle is provided on the outer edge of the upper end of the storage table 3 to prevent the glass from falling.

[0032] Working process of this utility model:

[0033] During the operation of the two-dimensional motion platform, the glass whose stress needs to be measured is placed on the storage table 3. After the motor of the horizontal linear module 2 starts working, it drives the lead screw to rotate. After the lead screw rotates, it drives the storage table 3 and the slider to move horizontally along the guide rail through the threaded action with the nut seat. When the storage table 3 and the glass move between the two vertical displacement tables 4, they stop moving. The stress sensor 5 first measures the stress at the initial position of the glass. After the measurement is completed, the longitudinal linear module 41 drives and controls the stress sensor 5 to move upward at a uniform speed, and measures the stress of other height positions of the glass in turn to obtain the stress size and distribution of each height position of the glass. During the measurement process, the moving distance of the stress sensor 5 along the height direction each time is adjusted according to the caliber and thickness of the glass. The pressure sensor 5 moves upward in a direction perpendicular to the ground to perform non-contact stress measurement in the thickness direction of the glass. The denser the interference fringes measured by the stress sensor 5 at a certain point, the greater the stress of the glass at that point.

[0034] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A two-dimensional motion platform for large-caliber glass stress measurement, characterized by: The invention comprises a base and a vertical translation platform. The base is provided with a transverse linear module and a storage platform. The transverse linear module is connected to the storage platform and drives the storage platform to move horizontally linearly. The vertical translation platform is installed on the base and is located on the side of the storage platform. The vertical translation platform is provided with a stress sensor for detecting glass stress and a longitudinal linear module. The longitudinal linear module is connected to the stress sensor and drives the stress sensor to move vertically linearly.

2. A two-dimensional motion platform for large-aperture glass stress measurement as claimed in claim 1, characterized in that: The number of the vertical translation platforms is 2, and the two vertical translation platforms are symmetrically installed on both sides of the storage platform.

3. A two-dimensional motion platform for large-caliber glass stress measurement as claimed in claim 1, characterized in that: The vertical displacement platform is provided with a right-angle bracket, and the bottom of the right-angle bracket is connected to the base.

4. A two-dimensional motion platform for large-aperture glass stress measurement as claimed in claim 1, characterized in that: A plurality of supporting feet are installed at the bottom of the base.

5. A two-dimensional motion platform for large-aperture glass stress measurement as claimed in claim 1, characterized in that: A lifting lug is arranged on the side of the base.

6. A two-dimensional motion platform for large-aperture glass stress measurement as claimed in claim 1, characterized in that: The transverse linear module is a screw slider module or a screw slide module, and the storage platform is connected to the slider of the screw slider module or the slide of the screw slide module.

7. A two-dimensional motion platform for large-aperture glass stress measurement as claimed in claim 1, characterized in that: The longitudinal linear module is a screw slider module or a screw slide module, and the stress sensor is connected to a slider of the screw slider module or a slide of the screw slide module.

8. The two-dimensional motion platform for large-aperture glass stress measurement according to claim 1, characterized in that: A baffle is provided on the outer edge of the upper end of the storage table.

Images