Bearing jig, testing device and sorting machine

Abstract

The utility model provides a bearing jig, a testing device and a sorting machine, and relates to the technical field of sorting equipment, the bearing jig provided by the utility model comprises a bearing seat, a heat preservation shell group and a heat preservation layer, the side surface of the bearing seat is provided with the heat preservation shell group, the heat preservation shell group and the side surface of the bearing seat form a heat preservation cavity, and the heat preservation layer is arranged in the heat preservation cavity. The bearing jig provided by the utility model can effectively reduce frosting and dewing phenomena on the side surface of the bearing jig, the temperature of the bearing jig does not need to be greatly increased through a test seat, and the test precision and the yield are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sorting equipment, in particular to a bearing fixture, a testing device and a sorting machine. Background Art

[0002] The test device used by the sorting machine to test the chip mainly includes a test seat, a carrying fixture, a clamping fixture, a test board, a pressure measuring arm, etc. The test board is electrically connected to the test machine. When the transport device of the sorting machine transfers the chip to the feed position, the pressure measuring arm takes the chip from the feed position and puts it into the clamping fixture for testing, while the transport device moves to the discharge position. After the pressure measuring arm completes the test of the chip, it takes it away and transfers it to the discharge position, and finally the transport device transfers the chip to the receiving bin.

[0003] During the low-temperature test, if frost and condensation occur, it will cause serious consequences such as circuit short circuit and burning of the test board, and it will also consume a lot of manpower, material resources, and financial resources to solve. Therefore, how to prevent frost and condensation is crucial for the normal progress of the test process. The existing technology mainly uses a double-circle sponge to seal the area between the upper surface of the test board and the lower surface of the carrier fixture, and heats the test seat to increase the temperature of the carrier fixture, thereby preventing the occurrence of frost and condensation under low-temperature testing. However, the existing technology has the following shortcomings:

[0004] 1. The side of the carrier fixture is in direct contact with the atmosphere, and the atmosphere can easily enter the test device through the gap between the carrier fixture and the test seat. Although the test seat increases the temperature of the carrier fixture to a certain extent, it cannot effectively prevent frost and condensation. The test seat can significantly increase the temperature of the carrier fixture, which may affect the test temperature, and thus affect key indicators such as test accuracy and yield.

[0005] 2. The existing air intake structure of air conditioners is sealed with a sealing ring, which is prone to air leakage and causes frost and condensation.

[0006] Therefore, how to provide a supporting fixture, a testing device and a sorting machine that can solve at least one of the above-mentioned technical problems is a problem faced by those skilled in the art. Utility Model Content

[0007] The utility model aims to provide a load-bearing fixture, a testing device and a sorting machine, which can effectively reduce the occurrence of frost and condensation on the side of the load-bearing fixture and ensure the test accuracy and yield.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] In a first aspect, the utility model provides a bearing fixture, comprising a bearing seat, an insulation shell group and an insulation layer, wherein the insulation shell group is installed on the side of the bearing seat, the insulation shell group and the side of the bearing seat form an insulation cavity, and the insulation layer is installed in the insulation cavity.

[0010] Furthermore, the thermal insulation shell group is arranged around the side surface of the bearing seat, and the thermal insulation shell group is detachably connected to the bearing seat.

[0011] Furthermore, the insulation shell group includes two oppositely arranged first insulation shells and two oppositely arranged second insulation shells, the first insulation shells are open at both end surfaces along their own extension direction, and the second insulation shells are closed at both end surfaces along their own extension direction; along a circle around the side of the supporting seat, the first insulation shell and the second insulation shell are alternately arranged, and the opening of the first insulation shell is opposite to the inner cavity of the second insulation shell.

[0012] Furthermore, the first insulation shell and the second insulation shell are both detachably connected to the bearing seat via a connecting piece, and a plurality of insulation layers are provided at intervals between the first insulation shell and the second insulation shell and the side surfaces of the bearing seat.

[0013] Furthermore, a sealing layer is provided on the top surface of the heat-insulating shell group, and the sealing layer is used to abut against the crimping piece on the side of the test seat to seal the gap between the bearing seat and the test seat.

[0014] Furthermore, the supporting seat has an air guide channel, and a rectangular sealing gasket is provided at the air inlet of the air guide channel, and the rectangular sealing gasket is used to abut against the air outlet end of the air intake rod on the test seat to seal the gap between the air outlet end of the air intake rod and the air inlet of the air guide channel.

[0015] Furthermore, the bottom surface of the bearing seat is provided with an inner sealing ring and an outer sealing ring, the outer sealing ring is arranged around the outside of the inner sealing ring and spaced apart from the inner sealing ring, and the bottom surface of the bearing seat located outside the outer sealing ring is provided with a thermal insulation pad.

[0016] Furthermore, the thickness of the thermal insulation pad is 2-3 mm.

[0017] In the second aspect, the utility model also provides a testing device, including a test seat and the bearing fixture described in the above scheme, the test seat is installed on the top of the bearing seat, the side of the test seat is provided with a crimping piece, and the bottom surface of the crimping piece abuts against the sealing layer on the top surface of the insulation shell group.

[0018] In a third aspect, the utility model further provides a sorting machine, comprising the testing device described in the above scheme.

[0019] The load-bearing fixture, testing device and sorting machine provided by the utility model can produce the following beneficial effects:

[0020] In the above-mentioned load-bearing fixture, an insulation shell group is installed on the side of the load-bearing seat, and an insulation layer is installed between the insulation shell group and the load-bearing seat. The insulation layer can prevent the insulation shell group, which is in direct contact with the atmosphere at normal temperature, from being affected by the test temperature and having a temperature that is too low, thereby effectively reducing the frost and condensation caused by water vapor in the atmosphere contacting the side of the load-bearing fixture.

[0021] Compared with the prior art, the side of the carrier fixture provided by the first aspect of the utility model is provided with an insulation shell group and an insulation layer, which can effectively reduce the occurrence of frost and condensation on the side of the carrier fixture and ensure the test accuracy and yield.

[0022] Compared with the prior art, in the test device provided in the second aspect of the utility model, the crimping parts on the side of the test seat can abut against the sealing layer on the top surface of the insulation shell group, so that the gap between the test seat and the side of the supporting fixture can be sealed to prevent frost and condensation caused by side leakage.

[0023] The sorting machine provided in the third aspect of the utility model has the supporting fixture provided in the first aspect of the utility model or the testing device provided in the second aspect of the utility model, and thus has all the beneficial effects of the supporting fixture provided in the first aspect of the utility model or the testing device provided in the second aspect of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of a three-dimensional structure of a support fixture provided in an embodiment of the utility model Figure 1 ;

[0026] Figure 2 An exploded view of a load-bearing fixture provided in an embodiment of the utility model;

[0027] Figure 3 A schematic diagram of a three-dimensional structure of a support fixture provided in an embodiment of the utility model Figure 2 ;

[0028] Figure 4 A top view of a testing device provided by an embodiment of the utility model;

[0029] Figure 5 for Figure 4 A-A cross-sectional view;

[0030] Figure 6 A three-dimensional structural schematic diagram of a testing device provided in an embodiment of the utility model;

[0031] Figure 7 An exploded diagram of a testing device provided in an embodiment of the utility model.

[0032] Icons: 1-support seat; 11-air guide channel; 12-rectangular sealing pad; 13-dry air inlet; 2-insulation shell group; 21-first insulation shell; 22-second insulation shell; 3-insulation layer; 4-sealing layer; 5-test seat; 51-crimping piece; 52-air inlet rod; 6-inner sealing ring; 7-outer sealing ring; 8-insulation pad; 9-test station clamping fixture; 10-pressure measuring arm; 011-test board. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0037] The first aspect of the present invention provides a load-bearing fixture. Figure 1 and Figure 2 As shown, it includes a bearing seat 1, an insulation shell group 2 and an insulation layer 3. The insulation shell group 2 is installed on the side of the bearing seat 1. The insulation shell group 2 and the side of the bearing seat 1 form an insulation cavity, and the insulation layer 3 is installed in the insulation cavity.

[0038] In the above embodiment, an insulation structure is added around the support fixture. Specifically, the insulation structure includes an insulation shell group 2 and an insulation layer 3. The side of the insulation shell group 2 can be regarded as the side of the support fixture. When performing low-temperature testing, the chip will be placed in the middle of the support seat 1 for testing. Since the test temperature is relatively low, the temperature of the edge of the support seat 1 will also decrease due to the test temperature. The insulation layer 3 can prevent the edge of the support seat 1 from directly contacting the atmosphere under normal temperature, and to a certain extent isolate the insulation shell group 2 and the support seat 1, effectively avoiding the temperature of the insulation shell group 2 from being too low, and effectively reducing the frost and condensation of water vapor in the atmosphere after contacting the side of the insulation shell group 2. At the same time, it is not necessary to significantly increase the temperature of the support fixture through the test seat 5, so as to ensure the test accuracy and yield.

[0039] In some embodiments, Figure 1 As shown, the insulation shell group 2 is arranged around the side of the bearing seat 1, so that an insulation cavity is formed around the side of the bearing seat 1, and the insulation layer 3 can be fully arranged on the outer circle of the bearing seat 1 to minimize the transfer of the lower temperature on the bearing seat 1 to the insulation shell group 2.

[0040] Of course, the heat-insulating shell group 2 can also be arranged on one or several side surfaces of the bearing seat 1 .

[0041] The insulation shell group 2 may include a plurality of insulation shells, which surround the side of the bearing seat 1 . The insulation shell group 2 may also include only one insulation shell, which is sleeved on the outside of the bearing seat 1 .

[0042] In some embodiments, Figure 2 As shown, the insulation shell group 2 includes two oppositely arranged first insulation shells 21 and two oppositely arranged second insulation shells 22; along a circle around the side of the bearing seat 1, the first insulation shells 21 and the second insulation shells 22 are alternately arranged.

[0043] The first heat-insulating shell 21 and the second heat-insulating shell 22 can be respectively arranged opposite to different sides of the bearing seat 1. Figure 2For example, the side of the bearing seat 1 is arranged in a rectangular shape, the first insulation shell 21 is arranged opposite to the long side of the bearing seat 1, and the second insulation shell 22 is arranged opposite to the short side of the bearing seat 1.

[0044] In some embodiments, the first insulation shell 21 is open at both end surfaces along its own extension direction, and the second insulation shell 22 is closed at both end surfaces along its own extension direction, and the opening of the first insulation shell 21 is opposite to the inner cavity of the second insulation shell 22, so that the insulation cavity formed between the first insulation shell 21 and the supporting seat 1 is connected with the insulation cavity formed between the second insulation shell 22 and the supporting seat 1, and then a rectangular annular insulation cavity is formed on the side of the supporting seat 1. While ensuring the sealing of the insulation cavity as much as possible, there is no need to close the two end surfaces of the first insulation shell 21, thereby reducing the processing difficulty of the insulation shell group 2.

[0045] After the first insulation shell 21 and the second insulation shell 22 are installed, the end surface of the second insulation shell 22 can be flush with the side surface of the first insulation shell 21, so that the two first insulation shells 21 and the two second insulation shells 22 form a rectangular frame with flat sides.

[0046] Specifically, the first insulation shell 21 and the second insulation shell 22 both include a top wall, a side wall and a bottom wall connected in sequence. The difference between the first insulation shell 21 and the second insulation shell 22 is that the second insulation shell 22 is provided with end walls at both ends along its extension direction.

[0047] In order to facilitate the installation and replacement of the thermal insulation layer 3 , the thermal insulation shell group 2 is detachably connected to the bearing seat 1 .

[0048] The heat-insulating shell group 2 and the bearing seat 1 can be detachably connected by connecting members such as bolts and pins, or can be detachably connected to the bearing seat 1 by using a buckle or slot structure.

[0049] When the insulation shell group 2 includes two first insulation shells 21 and two second insulation shells 22, the first insulation shell 21 and the second insulation shell 22 are both detachably connected to the supporting seat 1 through a connecting piece, and a plurality of insulation layers 3 are arranged between the first insulation shell 21 and the side of the supporting seat 1, and the plurality of insulation layers 3 are spaced apart along the extension direction of the first insulation shell 21, and the intervals between the insulation layers 3 are used for the connecting piece to pass through; a plurality of insulation layers 3 may also be arranged between the second insulation shell 22 and the side of the supporting seat 1, and the plurality of insulation layers 3 are spaced apart along the extension direction of the second insulation shell 22, and the intervals between the insulation layers 3 are used for the connecting piece to pass through.

[0050] by Figure 2For example, three insulation layers 3 are arranged at intervals between the first insulation shell 21 and the side of the bearing seat 1, and the bolts on the first insulation shell 21 pass through the intervals between two adjacent insulation layers 3 and are screwed into the bearing seat 1 to achieve the connection between the first insulation shell 21 and the bearing seat 1. Three insulation layers 3 are arranged at intervals between the second insulation shell 22 and the side of the bearing seat 1, and the bolts on the second insulation shell 22 pass through the intervals between two adjacent insulation layers 3 and are screwed into the bearing seat 1 to achieve the connection between the second insulation shell 22 and the bearing seat 1.

[0051] The above arrangement can ensure that the first heat-insulating shell 21 and the second heat-insulating shell 22 are firmly mounted on the bearing seat 1 , and facilitates the processing and installation of the heat-insulating shell group 2 .

[0052] The material of the thermal insulation layer 3 can be a high and low temperature resistant thermal insulation sponge.

[0053] A gap is easily formed between the test seat 5 and the bearing seat 1 during the sealing installation. Therefore, in some embodiments, such as Figure 2 As shown, a sealing layer 4 is provided on the top surface of the insulation shell group 2, and the sealing layer 4 is used to abut against the crimping piece 51 on the side of the test seat 5 to seal the gap between the support seat 1 and the test seat 5 to prevent frost and condensation caused by air leakage on the side of the support seat 1.

[0054] When the heat-insulating shell group 2 includes two first heat-insulating shells 21 and two second heat-insulating shells 22 , the top surfaces of the two first heat-insulating shells 21 and the two second heat-insulating shells 22 are both provided with a sealing layer 4 .

[0055] The sealing layer 4 may be made of a high and low temperature resistant thermal insulation sponge.

[0056] In some embodiments, Figure 3 As shown, the bottom surface of the bearing seat 1 is provided with an inner sealing ring 6 and an outer sealing ring 7, and the outer sealing ring 7 is arranged around the outer side of the inner sealing ring 6 and is spaced from the inner sealing ring 6. The inner sealing ring 6 surrounds each test station clamping fixture 9, and on this basis, the space surrounded by the inner sealing ring 6 needs to be as small as possible to ensure that the temperature of the inner ring is consistent with the temperature of the pressure measuring arm 10, and no serious temperature difference will be formed to cause frost and condensation; the outer sealing ring 7 needs to surround the dry air inlet 13 of the bearing seat 1, and when the inner sealing ring 6 and the outer sealing ring 7 are squeezed, the sealing area between the inner sealing ring 6 and the outer sealing ring 7 forms a positive pressure space, ensuring that the gap between the two sealing rings is filled with dry air, so that there is no water vapor in the area, and the dry air will also diffuse to the test station clamping fixture 9 and the external space through the honeycomb structure on the side of the inner sealing ring 6 and the outer sealing ring 7, further preventing the inevitable temperature difference formed on the lower surface of the bearing seat 1 due to the large area in a non-dry environment, causing frost and condensation.

[0057] In some embodiments, a portion of the bottom surface of the support seat 1 located outside the outer sealing ring 7 is provided with a heat preservation pad 8 to further improve the heat preservation effect.

[0058] Specifically, the thickness of the thermal insulation pad 8 is 2-3 mm, and can be 2 mm, 2.5 mm or 3 mm.

[0059] The material of the heat preservation pad 8 can be high and low temperature resistant heat preservation sponge.

[0060] In some embodiments, Figure 1 , Figure 4 and Figure 5 As shown, the support seat 1 has an air guide channel 11, and a rectangular sealing gasket 12 is provided at the air inlet of the air guide channel 11. The rectangular sealing gasket 12 is used to abut against the air outlet end of the air inlet rod 52 on the test seat 5 to seal the gap between the air outlet end of the air inlet rod 52 and the air inlet of the air guide channel 11.

[0061] Compared with the standard sealing ring used in the prior art, the rectangular sealing gasket 12 can increase the contact area with the bearing seat 1, has a better anti-leakage effect, and effectively prevents frost and condensation from occurring on the bearing seat 1.

[0062] Specifically, the sides of the rectangular sealing gasket 12 are equal in length, and the circle formed by the outer surface of a standard sealing ring in the prior art can be regarded as the inscribed circle of the rectangular sealing gasket 12 .

[0063] The rectangular sealing pad 12 may be made of a high and low temperature resistant thermal insulation sponge.

[0064] The second aspect of the present invention provides a testing device. Figure 5 As shown, the test device provided by the embodiment of the second aspect of the utility model includes a test seat 5 and the above-mentioned supporting fixture, the test seat 5 is installed on the top of the supporting seat 1, and a crimping piece 51 is provided on the side of the test seat 5, and the bottom surface of the crimping piece 51 abuts against the sealing layer 4 on the top surface of the insulation shell group 2.

[0065] The sealing layer 4 between the crimping piece 51 and the insulation shell group 2 can seal the gap between the bearing seat 1 and the test seat 5, and cooperate with the insulation shell group 2 and the insulation layer 3 to effectively reduce the formation of frost and condensation on the side of the bearing fixture.

[0066] In some embodiments, Figure 6 and Figure 7As shown, the test device also includes a pressure measuring arm 10, a test station clamping fixture 9 and a test board 011. When in use, the test station clamping fixture 9 is installed below the bearing seat 1, and then the test board 011 is installed below the bearing seat 1. The pressure measuring arm 10 puts the chip into the test station clamping fixture 9 for testing. Since the pressure measuring arm 10 is in an extremely low temperature state, the temperature of the bearing seat 1 that is in crimping contact with it will also drop instantly. At this time, the test seat 5 needs to be heated to 50 degrees. This temperature has been verified to not affect the test results.

[0067] The embodiment of the third aspect of the present utility model provides a sorting machine. The sorting machine provided by the embodiment of the third aspect of the present utility model includes the above-mentioned carrying fixture or the above-mentioned testing device.

[0068] The sorting machine provided in the third aspect of the utility model has the supporting fixture provided in the embodiment of the first aspect of the utility model or the testing device provided in the embodiment of the second aspect of the utility model, and thus has all the beneficial effects of the supporting fixture provided in the embodiment of the first aspect of the utility model or the testing device provided in the embodiment of the second aspect of the utility model.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A load-bearing fixture, characterized in that: It comprises a bearing seat (1), a heat-insulating shell group (2) and a heat-insulating layer (3); the heat-insulating shell group (2) is installed on the side of the bearing seat (1); the heat-insulating shell group (2) and the side of the bearing seat (1) form a heat-insulating cavity; and the heat-insulating layer (3) is installed in the heat-insulating cavity.

2. The carrying fixture according to claim 1, characterized in that: The heat-insulating shell group (2) is arranged around the side of the bearing seat (1), and the heat-insulating shell group (2) is detachably connected to the bearing seat (1).

3. The load-bearing fixture according to claim 1, characterized in that: The insulation shell group (2) comprises two first insulation shells (21) arranged opposite to each other and two second insulation shells (22) arranged opposite to each other, wherein the first insulation shell (21) has openings at both end surfaces along its own extension direction, and the second insulation shell (22) has closed end surfaces along its own extension direction; along a circle around the side surface of the supporting seat (1), the first insulation shell (21) and the second insulation shell (22) are alternately arranged, and the opening of the first insulation shell (21) faces the inner cavity of the second insulation shell (22).

4. The carrying fixture according to claim 3, characterized in that: The first heat-insulating shell (21) and the second heat-insulating shell (22) are both detachably connected to the bearing seat (1) via a connecting piece, and a plurality of the heat-insulating layers (3) are provided at intervals between the first heat-insulating shell (21) and the second heat-insulating shell (22) and the side surfaces of the bearing seat (1).

5. The carrying fixture according to claim 1, characterized in that: The top surface of the heat-insulating shell group (2) is provided with a sealing layer (4), and the sealing layer (4) is used to abut against a crimping piece (51) on the side of the test seat (5) to seal the gap between the bearing seat (1) and the test seat (5).

6. The carrying fixture according to any one of claims 1 to 5, characterized in that: The bearing seat (1) has an air guide channel (11), and a rectangular sealing gasket (12) is provided at the air inlet of the air guide channel (11). The rectangular sealing gasket (12) is used to abut against the air outlet end of the air inlet rod (52) on the test seat (5) to seal the gap between the air outlet end of the air inlet rod (52) and the air inlet of the air guide channel (11).

7. The carrying fixture according to any one of claims 1 to 5, characterized in that: The bottom surface of the bearing seat (1) is provided with an inner sealing ring (6) and an outer sealing ring (7); the outer sealing ring (7) is arranged around the outer side of the inner sealing ring (6) and is spaced apart from the inner sealing ring (6); and a heat preservation pad (8) is provided on the bottom surface of the bearing seat (1) located outside the outer sealing ring (7).

8. The carrying fixture according to claim 7, characterized in that: The thickness of the thermal insulation pad (8) is 2-3 mm.

9. A testing device, characterized in that: It comprises a test seat (5) and a bearing fixture as described in any one of claims 1 to 8, wherein the test seat (5) is installed on the top of the bearing seat (1), and a crimping piece (51) is provided on the side of the test seat (5), and the bottom surface of the crimping piece (51) abuts against the sealing layer (4) on the top surface of the insulation shell group (2).

10. A sorting machine, characterized in that: It comprises the carrying fixture as described in any one of claims 1 to 8 or the testing device as described in claim 9.

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