A marble rack

Abstract

The utility model provides a marble rack, which is made of marble material. The marble material makes the rack high in hardness and large in mass, thereby ensuring the stability of the rack during the test of the object to be tested and preventing vibration generated during the operation of the equipment. At the same time, the rack has high density and low water absorption, and can adapt to a humid environment. The rack also has thermal conductivity and heat resistance, and can evenly disperse heat, thereby preventing the rack from deforming due to thermal expansion or water absorption expansion, thereby affecting the movement of the object to be tested and the detection of a detection device, thereby ensuring the accuracy of the test of the object to be tested and making the rack suitable for high-precision testing of circuit boards or semiconductors. By arranging columns and arches on the base, the movement of the fixture of the object to be tested and the detection device of the object to be tested are more stable, the connection is more stable, and the accuracy of the detection result is improved.

Description

Technical Field

[0001] The utility model relates to the field of machine tool frames, and more specifically refers to a marble frame. Background Art

[0002] In the field of electronic testing, the rack is a frame structure that supports and connects machines and equipment, and its performance directly or indirectly affects the test results. Existing circuit board or semiconductor test machines usually use castings to build the rack, but castings have poor stability and heat resistance, and are easily deformed by heat, moisture or vibration during testing, affecting the movement of the object to be tested and the detection device, and thus affecting the test results. They are not suitable for high-precision circuit board or semiconductor testing operations. Utility Model Content

[0003] The utility model aims to overcome the defects of the prior art and provide a marble rack to solve the technical problems of poor stability, poor heat resistance and easy deformation of the existing casting rack.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A marble rack comprises: a base, a column and an arch; the base is arranged horizontally, and the column is fixedly connected to the top of the base; the arch spans the column and is fixedly connected to the top of the base; the column is used to install and guide a fixture of an object to be tested to move below the arch or away from the arch, and the arch is used to install a detection device for the object to be tested; the base, the column and the arch are all made of marble.

[0006] Among them, the top and bottom of the base are flat; the bottom of the column and the bottom of the arch are flat; the connection surface between the column and the fixture of the object to be tested is flat; the connection surface between the arch and the detection device of the object to be tested is flat.

[0007] Among them, the flatness of the top and bottom of the base is 0.01mm; the flatness of the bottom of the column and the bottom of the arch is 0.01mm; the flatness of the connection surface between the column and the DUT fixture is 0.01mm; the flatness of the connection surface between the arch and the DUT detection device is 0.01mm.

[0008] Wherein, the column is connected to the base through bolts, and the arch is connected to the base through bolts.

[0009] Wherein, a plurality of mounting grooves are provided on the top of the base, and the plurality of mounting grooves are symmetrically distributed along the horizontal central axis of the base.

[0010] Wherein, the arch comprises: a crossbeam and two side columns; the two side columns are respectively located on both sides of the column, and the two ends of the crossbeam are respectively fixedly connected to the two side columns.

[0011] The top of the side column is provided with a mounting hole, the bottom of the crossbeam is provided with a bonding hole corresponding to the mounting hole, a stud is passed through the mounting hole, and two ends of the stud are respectively bonded to the mounting hole and the bonding hole.

[0012] Wherein, the side columns and the upright columns are both transversely penetrated with a plurality of ventilation holes.

[0013] There are two columns, which are symmetrically distributed along the horizontal center axis of the base, and are located between the arch and the base.

[0014] The pillar and the arch are provided with a plurality of connection holes, the inner walls of the connection holes are friction surfaces; the fixture for the object to be tested and the detection device for the object to be tested are respectively screwed to the pillar and the arch through the plurality of connection holes.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the frame of the utility model is made of marble material, which makes the frame hard and heavy, thus ensuring the stability of the frame during the test and preventing vibration during the operation of the equipment. At the same time, the frame has high density and low water absorption, and can adapt to humid environments. The frame also has thermal conductivity and heat resistance, and can evenly disperse heat, thus avoiding deformation caused by thermal expansion or water absorption expansion of the frame, which affects the movement of the object to be tested and the detection of the detection device, thus ensuring the accuracy of the test of the object to be tested and making the frame suitable for high-precision testing of circuit boards or semiconductors. By arranging columns and arches on the base, the movement of the fixture of the object to be tested and the detection device of the object to be tested are smoother and the connection is more stable, thereby improving the accuracy of the detection results.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view structural schematic diagram of a marble rack provided by the utility model;

[0018] Figure 2 A three-dimensional structural schematic diagram of a marble rack provided by the utility model;

[0019] Figure 3A schematic diagram of the structure of a base and an arch of a marble rack provided by the utility model;

[0020] Figure 4 The utility model provides a schematic diagram of the exploded structure of an arch of a marble rack.

[0021] Reference numerals:

[0022] 1. Base; 11. Installation groove; 2. Column; 3. Arch; 31. Beam; 311. Horizontal part; 312. Inclined part; 313. Support part; 32. Side column; 321. Vertical part; 322. Step part; 4. Installation hole; 5. Adhesive hole; 6. Ventilation hole; 7. Connection hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and specific implementation methods. The technical solution in the embodiment of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0025] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0026] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0027] See also Figure 1-4As shown, this embodiment discloses a marble rack, which includes: a base 1, a column 2 and an arch 3; the base 1 is horizontally arranged, and the column 2 is fixedly connected to the top of the base 1; the arch 3 spans the column 2 and is fixedly connected to the top of the base 1; the column 2 is used to install and guide the fixture of the object to be tested to move to the bottom of the arch 3 or away from the arch 3, and the arch 3 is used to install the detection device of the object to be tested; the base 1, the column 2 and the arch 3 are all made of marble.

[0028] Marble has rigidity, stability and vibration reduction characteristics, so that the rack made of marble has high hardness and large mass, which ensures the stability of the rack during the test and prevents vibration during the operation of the equipment; and marble has the characteristics of high density and low water absorption, so that the rack can remain dry in a humid environment. At the same time, marble also has thermal conductivity and heat resistance, and can evenly disperse heat, avoiding the deformation of the rack due to thermal expansion or water absorption expansion, which affects the movement of the object to be tested and the detection of the detection device, ensuring the accuracy of the test of the object to be tested, and making the rack suitable for high-precision testing of circuit boards or semiconductors; by arranging the columns 2 and the arches 3 on the base, the movement of the fixture of the object to be tested and the detection device of the object to be tested are more stable, the connection is more stable, and the accuracy of the detection result is improved.

[0029] In this embodiment, the object to be tested includes but is not limited to IC chips, circuit boards, and semiconductor components. The object to be tested fixture is used to clamp the object to be tested. The object to be tested detection device includes but is not limited to CCD detection mechanism, clamping fixture, test probe, test system and other parts. The object to be tested detection device is used to test the performance and quality of the object to be tested.

[0030] In one embodiment, the top and bottom of the base 1 are flat; the bottom of the column 2 and the bottom of the arch 3 are flat; the connection surface between the column 2 and the fixture of the object to be tested is flat; the connection surface between the arch 3 and the detection device of the object to be tested is flat. The bottom and top of the base 1 are flat, which ensures the verticality and flatness of the column 2 and the arch 3. The connection surface between the column 2 and the fixture of the object to be tested can be one or more surfaces of the top and side walls of the column 2. The flat connection surface between the column 2 and the fixture of the object to be tested is conducive to the smooth movement of the fixture of the object to be tested, which is conducive to the high-precision movement of the fixture of the object to be tested; the connection surface between the arch 3 and the detection device of the object to be tested can be one or more surfaces of the top and side walls of the arch 3. The flat connection surface between the arch 3 and the detection device of the object to be tested is conducive to the smooth movement of the detection device of the object to be tested, which is conducive to the high-precision detection of the object to be tested.

[0031] In this embodiment, the base 1 and the column 2 are rectangular parallelepiped structures, and the outer surfaces of the base 1 and the column 2 are flat. The rectangular parallelepiped structure is symmetrical and balanced, and has greater stability; the rectangular parallelepiped structure is conducive to the layout of the column 2 and the arch 3, helps to improve space utilization, and is suitable for assembly line operations. In other embodiments, according to actual needs, a regular hexagon, a terrace or other structure can be used to replace the rectangular parallelepiped structure.

[0032] In this embodiment, the column 2 extends from one end of the base 1 to the bottom of the arch 3. It is convenient for the object to be tested to be loaded and unloaded from the end of the column 2 away from the arch 3, and to be tested under the arch 3, thereby improving the convenience of loading and unloading the object to be tested and the space utilization rate. It is understandable that in other embodiments, the end of the column 2 away from the arch 3 can be set in the middle of the base 1 or other positions.

[0033] In one embodiment, the flatness of the top and bottom of the base 1 is 0.01mm; the flatness of the bottom of the column 2 and the bottom of the arch 3 is 0.01mm; the flatness of the connection surface between the column 2 and the fixture of the object to be tested is 0.01mm; the flatness of the connection surface between the arch 3 and the device for detecting the object to be tested is 0.01mm. The flatness of the corresponding connection surface reaches 0.01mm, making the marble surface smooth, which is conducive to high-precision detection of the object to be tested; and the marble is wear-resistant and is not prone to defects even after long-term use, which ensures the service life of the rack.

[0034] In this embodiment, the outer surface of the arch 3 is flat, and the outer surface flatness of the base 1, the column 2 and the arch 3 is 0.01 mm. It can be understood that in other embodiments, according to actual needs, the surface other than the connection surface between the column 2 and the fixture of the object to be tested can be rough or textured, and the surface other than the connection surface between the arch 3 and the detection device of the object to be tested can be rough or textured.

[0035] In one embodiment, the column 2 is connected to the base 1 by bolts, and the arch 3 is connected to the base 1 by bolts. The bolts have high strength and durability, are not easy to break during long-term use, and are used to connect adjacent marbles to ensure the stability of the connection between adjacent marbles.

[0036] In one embodiment, the top of the base 1 is provided with a plurality of mounting holes 4, and the bottoms of the columns 2 and the arches 3 are provided with bonding holes 5 corresponding to the mounting holes 4. Bolts are passed through the mounting holes 4, and one end of the bolts is bonded to the mounting holes 4 through marble adhesive, and the other end of the bolts is bonded to the bonding holes 5 through marble adhesive. By providing mounting holes 4 on the base 1, and bonding holes 5 on the columns 2 and the arches 3, the bolts are limited, and marble adhesive is added to the mounting holes 4 and the bonding holes 5, so that the marble adhesive is fully in contact with the bolts, the mounting holes 4 or the bonding holes 5, and after the marble adhesive is cured, the bolts are firmly connected to the mounting holes 4 and the bonding holes 5, thereby ensuring the stability of the connection between the columns 2 and the arches 3 and the base 1.

[0037] In one embodiment, a plurality of mounting grooves 11 are provided on the top of the base 1, and the plurality of mounting grooves 11 are symmetrically distributed along the horizontal central axis of the base 1. The arrangement of the mounting grooves 11 is convenient for storing wires, installing ventilation devices or other structures, and at the same time saves marble materials and reduces the production cost of the base 1. The symmetrically distributed plurality of mounting grooves 11 ensures the balance of the base 1.

[0038] In one embodiment, the arch 3 includes: a crossbeam 31 and two side columns 32; the two side columns 32 are respectively located on both sides of the column 2, and the two ends of the crossbeam 31 are respectively fixedly connected to the two side columns 32. The crossbeam 31 and the side columns 32 are separately arranged, so that the crossbeam 31 and the side columns 32 can be manufactured, handled and transported separately, which greatly reduces the difficulty of manufacturing, handling and transportation, and the side columns 32 and the crossbeam 31 are independent of each other, which is convenient for disassembly and assembly of the arch 3, and replacement of the crossbeam 31 or the side columns 32.

[0039] In one embodiment, the top of the side column 32 is provided with a mounting hole 4, the bottom of the cross beam 31 is provided with a bonding hole 5 corresponding to the mounting hole 4, a stud is passed through the mounting hole 4, and both ends of the stud are respectively bonded to the mounting hole 4 and the bonding hole 5. The mounting hole 4 and the bonding hole 5 limit the position of the bolt, and marble adhesive is added to the mounting hole 4 and the bonding hole 5 so that the marble adhesive is in full contact with the bolt, the mounting hole 4 or the bonding hole 5. After the marble adhesive is cured, the bolt is firmly connected with the mounting hole 4 and the bonding hole 5, thereby ensuring the stability of the side column 32 and the cross beam 31.

[0040] In one embodiment, the inner walls of the mounting hole 4 and the bonding hole 5 are friction surfaces. The friction surfaces of the mounting hole 4 and the bonding hole 5 enhance the friction between the mounting hole 4 and the bonding hole 5 and the marble adhesive, facilitate the marble adhesive to be embedded in the friction surface, and improve the bonding stability between the marble adhesive and the mounting hole 4 or the bonding hole 5.

[0041] In one embodiment, the bottom of the side column 32 is provided with a bonding hole 5 corresponding to the mounting hole 4 of the base 1, which is used to achieve a fixed connection between the side column 32 and the base 1 by bolts.

[0042] In one embodiment, the crossbeam 31 includes: a horizontal portion 311, two inclined portions 312 and two supporting portions 313; the two supporting portions 313 are respectively fixedly connected to the two side columns 32, the two inclined portions 312 are respectively fixedly connected to the two supporting portions 313, and the two ends of the horizontal portion 311 are respectively fixedly connected to one end of the two inclined portions 312 away from the supporting portions 313; the two supporting portions 313, the two inclined portions 312 and the horizontal portion 311 form an arch structure. When the arch structure is subjected to a load, the internal stress can be evenly distributed to enhance the stability of the arch 3 structure, thereby ensuring the service life of the arch 3 and the connection stability of the device for detecting the object to be tested.

[0043] In one embodiment, the side column 32 includes: a vertical portion 321 and two step portions 322; the two step portions 322 are symmetrically arranged in the vertical direction and are respectively fixedly connected to the top of the base 1 and the bottom of the beam 31, and the two ends of the vertical portion 321 are respectively fixedly connected to the two step portions 322. The vertical portion 321 and the two step portions 322 make the side column 32 evenly stressed, avoid the side column 32 from being broken or bent due to long-term use, and facilitate stable support of the beam 31.

[0044] In one embodiment, the side pillars 32 and the uprights 2 are both transversely penetrated with a plurality of ventilation holes 6. The provision of the ventilation holes 6 is conducive to reducing the material used for the side pillars 32 and the uprights 2, saving the production cost of the rack, while improving the ventilation and heat dissipation effect during the test process of the object under test.

[0045] In one embodiment, there are two columns 2, which are symmetrically distributed along the horizontal central axis of the base 1, and the two columns 2 are located between the arch 3 and the base 1. The two symmetrically arranged columns 2 keep the rack balanced, which helps to maintain the service life of the rack. The two ends of the object to be tested fixture can be connected to the two columns 2 respectively, so that it can slide smoothly under the support of the two columns 2; the two object to be tested fixtures can also be installed on the two columns 2 respectively, so that when one object to be tested fixture is moved under the object to be tested detection device for detection, the object to be tested is loaded and unloaded on the other object to be tested fixture, which greatly improves the efficiency of the object to be tested detection.

[0046] In one embodiment, the column 2 and the arch 3 are provided with a plurality of connection holes 7, and the inner wall of the connection hole 7 is a friction surface; the fixture of the object to be tested and the detection device of the object to be tested are respectively screwed to the column 2 and the arch 3 through the plurality of connection holes 7. In practical applications, the threaded holes of the fixture of the object to be tested or the detection device of the object to be tested are aligned with the connection holes 7, and the connection holes 7 are filled with marble adhesive and then the screws are inserted to complete the installation of the fixture of the object to be tested or the detection device of the object to be tested. The friction surface of the connection hole 7 enhances the friction between the connection hole 7 and the marble adhesive, facilitates the marble adhesive to be embedded in the friction surface, and improves the bonding stability between the marble adhesive and the connection hole 7.

[0047] In one embodiment, the friction surfaces of the mounting hole 4, the bonding hole 5 and the connecting hole 7 are frosted surfaces or friction surfaces with a texture structure. Both the frosted surface and the texture structure have protrusions and grooves, which facilitate the marble adhesive to be embedded in the friction surface, thereby increasing the friction between the marble adhesive and the mounting hole 4, the bonding hole 5 or the connecting hole 7.

[0048] A marble rack of the present embodiment is made of marble material. The marble material makes the rack hard and heavy, thereby ensuring the stability of the rack during the test and preventing vibrations generated during the operation of the equipment. At the same time, the rack has high density and low water absorption, and can adapt to humid environments. The rack also has thermal conductivity and heat resistance, and can evenly disperse heat, thereby preventing the rack from deforming due to thermal expansion or water absorption expansion, which affects the movement of the object to be tested and the detection of the detection device, thereby ensuring the accuracy of the test of the object to be tested and making the rack suitable for high-precision testing of circuit boards or semiconductors. By arranging columns and arches on the base, the movement of the object to be tested fixture and the object to be tested detection device is smoother and the connection is more stable, thereby improving the accuracy of the detection result.

[0049] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A marble rack, characterized in that: include: bases, columns and arches; The base is arranged horizontally, and the column is screwed to the top of the base; The arch spans across the column and is fixedly connected to the top of the base; the column is used to install and guide the fixture of the object to be tested to move to the bottom of the arch or away from the arch, and the arch is used to install the detection device of the object to be tested; The base, the columns and the arch are all made of marble; The arch includes: a crossbeam and two side columns; the two side columns are respectively located on both sides of the vertical column, and the two ends of the crossbeam are respectively fixedly connected to the two side columns; the crossbeam includes: a horizontal portion, two inclined portions and two supporting portions; the two supporting portions are respectively fixedly connected to the two side columns, the two inclined portions are respectively fixedly connected to the two supporting portions, and the two ends of the horizontal portion are respectively fixedly connected to one end of the two inclined portions away from the supporting portions; the two supporting portions, the two inclined portions and the horizontal portion form an arch structure.

2. The marble rack according to claim 1, characterized in that: The top and bottom of the base are flat; the bottom of the column and the bottom of the arch are flat; the connection surface between the column and the fixture of the object to be tested is flat; the connection surface between the arch and the detection device of the object to be tested is flat.

3. The marble rack according to claim 2, characterized in that: The flatness of the top and bottom of the base is 0.01mm; the flatness of the bottom of the column and the bottom of the arch is 0.01mm; the flatness of the connection surface between the column and the DUT fixture is 0.01mm; the flatness of the connection surface between the arch and the DUT detection device is 0.01mm.

4. The marble rack according to claim 2, characterized in that: The arch is connected to the base by bolts.

5. The marble rack according to claim 2, characterized in that: A plurality of mounting grooves are arranged on the top of the base, and the plurality of mounting grooves are symmetrically distributed along the horizontal central axis of the base.

6. The marble rack according to claim 1, characterized in that: A mounting hole is provided at the top of the side column, and a bonding hole corresponding to the mounting hole is provided at the bottom of the crossbeam. A stud is passed through the mounting hole, and two ends of the stud are respectively bonded to the mounting hole and the bonding hole.

7. The marble rack according to claim 1, characterized in that: The side columns and the upright columns are both transversely penetrated with a plurality of ventilation holes.

8. The marble rack according to claim 1, characterized in that: The number of the columns is two, and the two columns are symmetrically distributed along the horizontal central axis of the base, and the two columns are located between the arch and the base.

9. The marble rack according to claim 1, characterized in that: The column and the arch are provided with a plurality of connection holes, the inner walls of the connection holes are friction surfaces; the fixture for the object to be tested and the detection device for the object to be tested are respectively screwed to the column and the arch through the plurality of connection holes.

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