Tester frame

Abstract

The utility model discloses a tester frame which comprises a base, two stand columns with the same structure are arranged on the base, a rotating mechanism and a positioning mechanism which are connected with the two stand columns are arranged at the upper ends of the two stand columns respectively, the rotating mechanism and the positioning mechanism are arranged in a mirror image mode, and the rotating mechanism comprises a bearing seat, an index plate, an index pin and a position-adjustable fastening handle. The beneficial effects of the utility model are that a mirror image structure of the rotating mechanism and the positioning mechanism is utilized to connect the testing head, so that the tester can rotate back and forth by 360 degrees in the use process, and a self-locking indexing pin and an adjustable fastening handle in the rotating mechanism can be matched with an indexing plate to rotate, control and adjust a required angle for locking, so that the testing precision is improved, and the working efficiency is improved. Practicability is high, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of testers, in particular to a tester frame. Background Art

[0002] Currently, there are two types of measurement for the surface parameters of semiconductor devices: contact and non-contact. The contact measurement methods include the probe method, the Van der Pauw method, the Hall effect method, etc. Among them, the probe tester method is the most widely used in semiconductor measurement technology.

[0003] Currently, different testers on the market are basically not universal. Most testers are specially designed and customized to test certain parameters and functions. Most of them are desktop testers. Therefore, the test range is limited and generally cannot meet specific test requirements. The test head on the tester needs to adjust the angle and dot the chip under test during use. The existing testers cannot meet the required angle positioning adjustment and are not very practical. Utility Model Content

[0004] The purpose of the present utility model is to provide a tester frame to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The utility model provides a tester frame, which includes a base. Two columns with the same structure are provided on the base. The upper ends of the two columns are respectively provided with a rotating mechanism and a positioning mechanism connected thereto. The rotating mechanism and the positioning mechanism are arranged in a mirror image. The rotating mechanism includes a bearing seat, an indexing plate, an indexing pin and an adjustable tightening handle.

[0007] Furthermore, the base is U-shaped, and a plurality of Forma wheels are provided at the lower end of the base.

[0008] Furthermore, the upper and lower ends of the column are fixedly connected to the bearing seat and the base through locking screws respectively.

[0009] Furthermore, the rotating mechanism further includes a test head fixing plate 1 and a test head fixing plate 2 fixedly connected thereto, and one side of the test head fixing plate 1 is fixedly connected to the indexing plate.

[0010] Furthermore, a bearing is provided on the indexing plate, and the indexing plate is connected to the first test head fixing plate and the second test head fixing plate via a plurality of positioning bolts.

[0011] Furthermore, a radial bearing is provided in the bearing seat, and one end of the radial bearing is matched and connected to the bearing.

[0012] Furthermore, bearing washers 1 are provided at both ends of the radial bearing, and bearing washers 2 are provided at one end of the radial bearing close to the bearing seat, and the bearing washers 2 are located between the bearing washers 1 and the radial bearing.

[0013] Furthermore, the adjustable locking handle includes a handle portion and a rotating rod portion, and the rotating rod portion passes through the rear end of the bearing seat and extends to the position of the dividing plate.

[0014] Furthermore, a recess is provided on the rotating rod, and the recess is arranged corresponding to the dividing plate.

[0015] Furthermore, the indexing pin is a self-locking spring pin, and one end of the indexing pin is inserted into the indexing plate after passing through the bearing seat.

[0016] Beneficial effects: A tester frame utilizes the mirror structure of a rotating mechanism and a positioning mechanism to connect a test head, thereby enabling the tester to rotate 360 degrees forward and backward during use. The self-locking indexing pin and the adjustable tightening handle in the rotating mechanism can be used in conjunction with the indexing plate to rotate, control, and lock the adjustment of the required angle, thereby being highly practical and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the rotating mechanism of the present utility model;

[0019] Figure 3 This is a schematic diagram of another angle rotation mechanism of the present invention;

[0020] Figure 4 This is an exploded schematic diagram of the rotating mechanism of the present invention.

[0021] Reference numerals

[0022] 1-Foma wheel, 2-base, 3-column, 4-bearing seat, 5-indexing pin, 6-adjustable tightening handle, 61-handle part, 62-rotating rod part, 621-recess, 7-indexing plate, 8-test head fixing plate 1, 9-test head fixing plate 2, 10-bearing, 11-radial bearing, 12-locating bolt, 13-bearing washer 2, 14-bearing washer 1, 15-rotating mechanism, 16-positioning mechanism. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] Example

[0025] like Figure 1-4 As shown, a tester frame includes a base 2, on which two columns 3 with the same structure are provided. The upper ends of the two columns 3 are respectively provided with a rotating mechanism 15 and a positioning mechanism 16 connected thereto. The rotating mechanism 15 and the positioning mechanism 16 are arranged in a mirror image. The rotating mechanism 15 includes a bearing seat 4, a dividing plate 7, an indexing pin 5 and an adjustable tightening handle 6.

[0026] In embodiment one, the base 2 is U-shaped, and a plurality of Forma wheels 1 are provided at the lower end of the base 2. The frame is supported by the Forma wheels 1 for the overall structure, has good weighing performance, can be used for horizontal adjustment to keep the overall height of the frame consistent, and can be moved arbitrarily to achieve left and right steering to match the operating position, and is fixed by a brake wheel, which is more convenient to use. The upper and lower ends of the column 3 are fixedly connected to the bearing seat 4 and the base 2 by locking screws respectively, and the rotating mechanism 15 and the positioning mechanism 16 are fixed to the upper end of the column 3 in a mirror image. The positioning mechanism 16 includes a bearing seat and a test head fixing plate with the same structure as those in the rotating mechanism 15, and rotation is achieved through bearings.

[0027] In the second embodiment, the rotating mechanism 15 further includes a test head fixing plate 18 and a test head fixing plate 29 fixedly connected thereto. One side of the test head fixing plate 18 is fixedly connected to the indexing plate 7. A bearing 10 is provided on the indexing plate 7. The indexing plate 7 is connected to the test head fixing plate 18 and the test head fixing plate 29 by a plurality of positioning bolts 12. The test head is fixedly connected by the test head fixing plate 18 and the test head fixing plate 29. A radial bearing 11 is provided in the bearing seat 4. One end of the radial bearing 11 is matched with the bearing 10. Both ends of the radial bearing 11 are provided with a bearing washer 14. The end of the radial bearing 11 close to the bearing seat 4 is also provided with a bearing washer 2 13. The bearing washer 2 13 is located between the bearing washer 14 and the radial bearing 11. The radial bearing 11 and the bearing 10 can reduce friction after being matched through the bearing washers. To ensure the stability of rotation, the bearing 10 drives the test head connected to the test head fixing plate to rotate 360 degrees forward and backward. The adjustable tightening handle 6 includes a handle portion 61 and a rotating rod portion 62. The rotating rod portion 62 extends through the rear end of the bearing seat 4 to the position of the indexing disk 7. A recess 621 is provided on the rotating rod portion 62, and the recess 621 is set corresponding to the indexing disk 7. After the indexing disk 7 is rotated into place, the adjustable tightening handle 6 rotates the handle portion 61 to make the recess 621 on the rotating rod portion 62 clamp the edge of the indexing disk 7 to lock it so that it no longer rotates. The indexing pin 5 is a self-locking spring pin. After the indexing pin 5 passes through the bearing seat 4, one end of the indexing pin 5 is inserted into the indexing disk 7. After the indexing disk 7 stops rotating, one end of the indexing pin 5 is inserted into the positioning hole of the indexing disk 7, and is used in conjunction with the adjustable tightening handle 6 to adjust the angle of the indexing disk.

[0028] The tester frame provided in the present invention utilizes the mirror structure of the rotating mechanism 15 and the positioning mechanism 16 to connect the test head, so that the tester can be rotated 360 degrees forward and backward during use. The self-locking indexing pin 5 and the adjustable tightening handle 6 in the rotating mechanism 15 can be rotated in conjunction with the indexing plate 7 to control and lock the adjustment of the required angle, which is highly practical and easy to operate.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A tester frame, comprising a base (2), characterized in that: Two columns (3) of identical structure are provided on the base (2). The upper ends of the two columns (3) are respectively provided with a rotating mechanism (15) and a positioning mechanism (16) connected thereto. The rotating mechanism (15) and the positioning mechanism (16) are arranged in a mirror image. The rotating mechanism (15) includes a bearing seat (4), a dividing plate (7), an indexing pin (5) and an adjustable locking handle (6).

2. A tester frame according to claim 1, characterized in that: The base (2) is U-shaped, and a plurality of Forma wheels (1) are provided at the lower end of the base (2).

3. The tester frame according to claim 1, characterized in that: The upper and lower ends of the column (3) are fixedly connected to the bearing seat (4) and the base (2) via locking screws respectively.

4. The tester frame according to claim 1, characterized in that: The rotating mechanism (15) further comprises a test head fixing plate 1 (8) and a test head fixing plate 2 (9) fixedly connected thereto, wherein one side of the test head fixing plate 1 (8) is fixedly connected to the indexing plate (7).

5. The tester frame according to claim 4, characterized in that: The indexing plate (7) is provided with a bearing (10), and the indexing plate (7) is connected to the test head fixing plate 1 (8) and the test head fixing plate 2 (9) via a plurality of positioning bolts (12).

6. The tester frame according to claim 5, characterized in that: A radial bearing (11) is provided in the bearing seat (4), and one end of the radial bearing (11) is matched and connected to the bearing (10).

7. The tester frame according to claim 6, characterized in that: Both ends of the radial bearing (11) are provided with a first bearing washer (14), and the end of the radial bearing (11) close to the bearing seat (4) is also provided with a second bearing washer (13), and the second bearing washer (13) is located between the first bearing washer (14) and the radial bearing (11).

8. The tester frame according to claim 1, characterized in that: The adjustable locking handle (6) comprises a handle portion (61) and a rotating rod portion (62), and the rotating rod portion (62) passes through the rear end of the bearing seat (4) and extends to the position of the dividing plate (7).

9. The tester frame according to claim 8, characterized in that: A recess (621) is provided on the rotating rod portion (62), and the recess (621) is arranged corresponding to the indexing plate (7).

10. The tester frame according to claim 1, characterized in that: The indexing pin (5) is a self-locking spring pin. After the indexing pin (5) passes through the bearing seat (4), one end of the indexing pin (5) is inserted into the indexing plate (7).

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