Chip fixture self-centering positioning clamp

Abstract

The utility model relates to chip production technical field especially relates to a kind of chip fixture self-centering positioning fixture. Including: base and chip body, the upper surface of the base is fixedly connected with several stand, the upper surface of the stand is fixedly connected with mounting plate, the upper surface of the mounting plate is fixedly connected with pneumatic cylinder, the output end of the pneumatic cylinder is equipped with detection head, the upper surface of the base is fixedly connected with detection platform, the cross section of the detection platform is "U" shape, the upper surface of the detection platform and the lower surface of chip body are in close conformity, the upper surface of the detection platform is equipped with centering clamping device, the centering clamping device includes several sliding holes, the sliding hole is opened in the upper surface of detection platform, the inner wall of the detection platform is rotatably connected with carousel.The utility model provides a kind of chip fixture self-centering positioning fixture has the advantage that quickly centering clamping is carried out to chip, and reduces chip detection error.

Description

Technical Field

[0001] This utility model relates to the field of chip manufacturing technology, and in particular to a self-centering positioning fixture for chip jigs. Background Technology

[0002] A chip, also known as an integrated circuit, is a core component of modern electronic devices. It achieves specific electrical functions by integrating a large number of microelectronic components (such as transistors, resistors, capacitors, etc.) onto a small piece of semiconductor material (usually silicon).

[0003] Existing technologies, such as the utility model patent with publication number CN219657804U, disclose a chip testing fixture, including a test substrate and a riser plate. The test substrate is disposed on the motherboard, and the chip is disposed on the side of the test substrate away from the motherboard. The riser plate is disposed between the motherboard and the test substrate, and the height of the riser plate is higher than the height of other electronic components on the motherboard. The riser plate includes a main body, a central hole, a first connecting terminal, and a second connecting terminal. The central hole is disposed within the main body, penetrating the upper and lower surfaces of the main body, and is connected to the first connecting terminal on the upper surface of the main body and to the second connecting terminal on the lower surface of the main body. The test substrate connects the chip to the motherboard through the first connecting terminal, the central hole, and the second connecting terminal. This application, through the above design, facilitates testing, is applicable to various mobile phone platforms, and reduces signal interference.

[0004] Regarding the above-mentioned issues, the following technical defects were found: During the chip testing process, it is difficult for operators to center and fix the chip, and manual chip fixing during testing is prone to errors, thereby affecting the chip testing efficiency and chip processing and production efficiency. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies.

[0006] To solve the above technical problems, this utility model provides a self-centering positioning fixture for a chip jig, comprising: a base and a chip body. A plurality of columns are fixedly connected to the upper surface of the base. A mounting plate is fixedly connected to the upper surface of each column. A cylinder is fixedly connected to the upper surface of the mounting plate. A detection head is installed at the output end of the cylinder. A detection platform is fixedly connected to the upper surface of the base. The detection platform has a U-shaped cross-section. The upper surface of the detection platform is in contact with the lower surface of the chip body. A centering clamping device is provided on the upper surface of the detection platform. The centering clamping device includes a plurality of sliding holes on the upper surface of the detection platform. A turntable is rotatably connected to the inner wall of the detection platform. A plurality of limiting holes are provided on the lower surface of the turntable. A moving rod is slidably connected to the inner walls of both the sliding holes and the limiting holes. A clamping plate is fixedly connected to the upper surface of the moving rod. A first motor is fixedly connected to the lower surface of the turntable.

[0007] The effect achieved by the above components is that the centering clamping device on the upper surface of the testing platform helps to improve the accuracy of the testing head in testing the chip body and avoids the errors caused by manual placement of the chip body.

[0008] Preferably, the inner wall of the sliding hole is provided with a sliding groove, and the arc surface of the moving rod is fixedly connected to a sliding rod, which is slidably connected to the inner wall of the sliding groove.

[0009] The effect achieved by the above components is that, through the cooperation of the slide bar and the slide groove, the moving rod is restricted, preventing the moving rod from moving up and down and causing errors in the clamping of the chip body.

[0010] Preferably, a rubber pad is fixedly connected to one side of the clamping plate, and the size of the rubber pad is adapted to the size of the clamping plate.

[0011] The effect achieved by the above components is that, by using the rubber pad on one side of the clamping plate, the clamping plate can prevent damage to the chip body caused by excessive clamping force when centering and clamping the chip body.

[0012] Preferably, the lower surface of the turntable is interference-fitted with a protective cover, which encloses the first motor, and the protective cover has several heat dissipation holes evenly distributed on both sides.

[0013] The effect achieved by the above components is that the protective cover fixedly connected to the lower surface of the turntable helps to reduce the damage caused by foreign objects to the first motor and extend the service life of the first motor.

[0014] Preferably, the mounting plate has a protective device on its side, the protective device including a protective cover, the inner wall of the protective cover being in contact with the side of the mounting plate, a welding plate being fixedly connected to the inner wall of the protective cover, a screw being rotatably inserted through the upper surface of the mounting plate, the arc surface of the screw being threadedly connected to the inner wall of the welding plate, and a second motor being fixedly connected to the lower surface of the mounting plate, the output end of the second motor being fixedly connected to one end of the screw.

[0015] The aforementioned components achieve the following effects: by using the protective device on the side of the mounting plate, the detection area is protected when the chip body is being tested, preventing the operator from being injured when the cylinder presses down on the detection head; and when the detection fixture is not in use, the detection area is protected to prevent dust from contaminating the detection head and affecting the detection accuracy of the chip body.

[0016] Preferably, a fixing plate is fixedly connected to the inner wall of the protective cover, and a guide rod is slidably passed through the upper surface of the fixing plate, with the lower end of the guide rod fixedly connected to the upper surface of the mounting plate.

[0017] The effect achieved by the above components is to restrict the movement of the protective cover and reduce its lateral swaying through the combined use of the guide rod and the fixing plate.

[0018] Preferably, an installation hole is provided on one side of the protective cover, and an acrylic plate is fixedly connected to the inner wall of the installation hole.

[0019] The effect achieved by the above components is that the acrylic plate installed on the inner wall of the mounting hole allows the operator to easily observe the testing process of the chip body during the testing process, thus avoiding testing failure due to operational errors.

[0020] Compared with related technologies, the self-centering positioning fixture for chip jigs provided by this utility model has the following beneficial effects:

[0021] This utility model provides a self-centering positioning fixture for chip jigs. By operating the centering clamping device, the chip body is clamped. First, the rotation of the first motor drives the turntable to rotate, which helps to move the moving rod on the inner wall of the limiting hole. Then, the sliding hole on the upper surface of the detection platform restricts the movement direction of the moving rod, which helps to drive the clamping plate to center and clamp the chip body.

[0022] By operating the protective device, the working detection area of ​​the detection head is protected. The rotation of the second motor drives the screw to rotate, which helps the welding plate move the protective cover along the screw. Then, the guide rod and the fixed plate guide the moving protective cover to prevent it from shaking, which helps to protect the detection area of ​​the chip body. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of a self-centering positioning fixture for chip jig provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the structure of the centering clamping device.

[0025] Figure 3 for Figure 2 The enlarged structural diagram at point A is shown below;

[0026] Figure 4 for Figure 2 The diagram shows a partial structure.

[0027] Figure 5 for Figure 1 The diagram shows the structure of the protective device.

[0028] The following are the labeling elements in the diagram: 1. Base; 2. Column; 3. Mounting plate; 4. Cylinder; 5. Detection head; 6. Detection platform; 7. Chip body; 8. Centering clamping device; 801. Sliding hole; 802. Moving rod; 803. Clamping plate; 804. Turntable; 805. Limiting hole; 806. First motor; 807. Sliding groove; 808. Sliding rod; 809. Rubber pad; 810. Protective cover; 811. Heat dissipation hole; 9. Protective device; 91. Protective cover; 92. Welding plate; 93. Screw; 94. Second motor; 95. Mounting hole; 96. Fixing plate; 97. Guide rod. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Please see Figure 1 The present invention provides a self-centering positioning fixture for a chip jig, comprising: a base 1 and a chip body 7. A plurality of columns 2 are fixedly connected to the upper surface of the base 1, and a mounting plate 3 is fixedly connected to the upper surface of the columns 2. A cylinder 4 is fixedly connected to the upper surface of the mounting plate 3, and a detection head 5 is installed at the output end of the cylinder 4. A detection platform 6 is fixedly connected to the upper surface of the base 1. The detection platform 6 has a U-shaped cross-section, and the upper surface of the detection platform 6 is in contact with the lower surface of the chip body 7. A centering clamping device 8 is provided on the upper surface of the detection platform 6, and a protective device 9 is provided on the side of the mounting plate 3.

[0032] In the embodiments of this utility model, please refer to Figure 2 , Figure 3 and Figure 4 The centering clamping device 8 includes several sliding holes 801, which are formed on the upper surface of the detection platform 6. A turntable 804 is rotatably connected to the inner wall of the detection platform 6. Several limiting holes 805 are formed on the lower surface of the turntable 804. Moving rods 802 are slidably connected to the inner walls of the sliding holes 801 and the limiting holes 805. A clamping plate 803 is fixedly connected to the upper surface of the moving rod 802, and a first motor 806 is fixedly connected to the lower surface of the turntable 804. The centering clamping device 8 on the upper surface of the detection platform 6 helps to improve the accuracy of the detection head 5 in detecting the chip body 7 and avoids the errors caused by manual placement of the chip body 7. A sliding groove 807 is formed on the inner wall of the sliding hole 801, and a sliding rod 808 is fixedly connected to the arc surface of the moving rod 802. The sliding rod 808 is slidably connected to the inner wall of the sliding groove 807. The sliding rod 808 and the sliding groove 807 work together to restrict the moving rod 802, preventing it from moving up and down and causing errors in clamping the chip body 7. A rubber pad 809 is fixedly connected to one side of the clamping plate 803, and the size of the rubber pad 809 is adapted to the size of the clamping plate 803. By using the rubber pad 809 on one side of the clamping plate 803, the clamping force of the clamping plate 803 is prevented from being too large and causing damage to the chip body 7 when the clamping plate 803 is used for centering and clamping. A protective cover 810 is interference-fitted to the lower surface of the turntable 804. The protective cover 810 covers the first motor 806, and several heat dissipation holes 811 are evenly opened on both sides of the protective cover 810. The protective cover 810 fixedly connected to the lower surface of the turntable 804 helps to reduce the damage to the first motor 806 caused by foreign objects and extend the service life of the first motor 806.

[0033] In the embodiments of this utility model, please refer to Figure 5The protective device 9 includes a protective cover 91, the inner wall of which fits against the side of the mounting plate 3. A welding plate 92 is fixedly connected to the inner wall of the protective cover 91. A screw 93 is rotatably inserted through the upper surface of the mounting plate 3, and the arc surface of the screw 93 is threadedly connected to the inner wall of the welding plate 92. A second motor 94 is fixedly connected to the lower surface of the mounting plate 3, and the output end of the second motor 94 is fixedly connected to one end of the screw 93. The protective device 9, located on the side of the mounting plate 3, protects the detection area when the chip body 7 is being tested, preventing injury to the operator when the cylinder 4 presses down on the detection head 5. It also protects the detection area from dust contamination of the detection head 5 when the testing fixture is not in use, thus preventing it from affecting the detection accuracy of the chip body 7. A fixing plate 96 is fixedly connected to the inner wall of the protective cover 91, and a guide rod 97 slides through the upper surface of the fixing plate 96. The lower end of the guide rod 97 is fixedly connected to the upper surface of the mounting plate 3. The guide rod 97 and the fixing plate 96 work together to restrict the movement of the protective cover 91 and reduce its lateral swaying. A mounting hole 95 is provided on one side of the protective cover 91, and an acrylic plate is fixedly connected to the inner wall of the mounting hole 95. The acrylic plate installed on the inner wall of the mounting hole 95 allows operators to easily observe the testing process of the chip body 7, preventing test failure due to operational errors.

[0034] The working principle of the self-centering positioning fixture for chip jig provided by this utility model is as follows: When the chip body 7 is being tested, in order to accurately determine the position of the chip body 7 and to prevent the chip body 7 from shaking and causing test failure during the testing process, a centering clamping mechanism is required. First, the chip body 7 is placed on the upper surface of the testing platform 6, and then the first motor 806 is started. The start of the first motor 806 drives the turntable 804 to rotate. The rotation of the turntable 804 causes the moving rod 802 to move along the limiting hole 805 and the sliding hole 801 towards one of the chip body 7. The end is moved, and the moving rod 802 moves to one end of the chip body 7, driving the clamping plate 803 to center and clamp the chip. At this time, the rubber pad 809 fixed on one side of the clamping plate 803 prevents the clamping force of the clamping plate 803 from being too large and causing damage to the chip body 7. After the chip body 7 is centered and clamped, the detection head 5 is used to detect the chip body 7. After the chip detection is completed, the first motor 806 rotates to drive the turntable 804 to reverse so that the clamped chip body 7 is released. Finally, the first motor 806 is turned off and the chip body 7 that has been detected is taken out.

[0035] During the testing process of the chip body 7, in order to prevent operators from accidentally entering the testing area and causing crush injuries, the testing area needs to be protected. When the protective device 9 is used, after the chip body 7 is placed on the testing platform 6, the second motor 94 is started. The rotation of the second motor 94 drives the lead screw to rotate, so that the protective cover 91 moves downward along the screw 93 with the help of the welding plate 92. At this time, the guide rod 97 restricts the movement of the protective cover 91 with the help of the fixing plate 96, reducing the left and right sway of the protective cover 91 and making it move smoothly. After the lower surface of the protective cover 91 is attached to the upper surface of the base 1, the chip body 7 is clamped and tested. At this time, the acrylic plate installed on the inner wall of the mounting hole 95 on one side of the protective cover 91 can facilitate the observation of the tested chip body 7. After the chip body 7 is clamped and tested, the second motor 94 drives the screw 93 to move the protective cover 91 upward. After the testing area of ​​the chip body 7 is fully opened, the second motor 94 is turned off.

[0036] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A self-centering positioning fixture for chip jigs, characterized in that, include: The base (1) and the chip body (7) are provided. Several columns (2) are fixedly connected to the upper surface of the base (1). A mounting plate (3) is fixedly connected to the upper surface of the columns (2). A cylinder (4) is fixedly connected to the upper surface of the mounting plate (3). A detection head (5) is installed at the output end of the cylinder (4). A detection platform (6) is fixedly connected to the upper surface of the base (1). The cross-section of the detection platform (6) is U-shaped. The upper surface of the detection platform (6) is in contact with the lower surface of the chip body (7). A centering clamp is provided on the upper surface of the detection platform (6). The device (8) includes several sliding holes (801), which are opened on the upper surface of the detection platform (6). A turntable (804) is rotatably connected to the inner wall of the detection platform (6). Several limiting holes (805) are opened on the lower surface of the turntable (804). A moving rod (802) is slidably connected to the inner wall of both the sliding hole (801) and the limiting hole (805). A clamping plate (803) is fixedly connected to the upper surface of the moving rod (802). A first motor (806) is fixedly connected to the lower surface of the turntable (804).

2. The self-centering positioning fixture for a chip jig according to claim 1, characterized in that, The inner wall of the sliding hole (801) is provided with a sliding groove (807), and the arc surface of the moving rod (802) is fixedly connected with a sliding rod (808), which is slidably connected to the inner wall of the sliding groove (807).

3. The self-centering positioning fixture for a chip jig according to claim 1, characterized in that, A rubber pad (809) is fixedly connected to one side of the clamping plate (803), and the size of the rubber pad (809) is adapted to the size of the clamping plate (803).

4. A self-centering positioning fixture for a chip jig according to claim 1, characterized in that, The lower surface of the turntable (804) is press-fitted with a protective cover (810), which encloses the first motor (806). Several heat dissipation holes (811) are evenly distributed on both sides of the protective cover (810).

5. A self-centering positioning fixture for a chip jig according to claim 1, characterized in that, The mounting plate (3) is provided with a protective device (9) on its side. The protective device (9) includes a protective cover (91). The inner wall of the protective cover (91) is in contact with the side of the mounting plate (3). A welding plate (92) is fixedly connected to the inner wall of the protective cover (91). A screw (93) is rotatably passed through the upper surface of the mounting plate (3). The arc surface of the screw (93) is threadedly connected to the inner wall of the welding plate (92). A second motor (94) is fixedly connected to the lower surface of the mounting plate (3). The output end of the second motor (94) is fixedly connected to one end of the screw (93).

6. A self-centering positioning fixture for a chip jig according to claim 5, characterized in that, The inner wall of the protective cover (91) is fixedly connected to a fixing plate (96), and a guide rod (97) is slidably passed through the upper surface of the fixing plate (96). The lower end of the guide rod (97) is fixedly connected to the upper surface of the mounting plate (3).

7. A self-centering positioning fixture for a chip jig according to claim 5, characterized in that, The protective cover (91) has a mounting hole (95) on one side, and an acrylic plate is fixedly connected to the inner wall of the mounting hole (95).

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