Clock chip test tool

Abstract

The utility model discloses a clock chip test tool, which belongs to the technical field of test tools and comprises a box body, a clamping assembly, a synchronous driving assembly and a hydraulic control assembly. Two sets of sliding grooves perpendicular to each other are formed in the upper portion of the box body. The clamping assembly comprises sliding blocks arranged in the sliding grooves in a sliding mode, positioning clamping blocks are installed on the two sliding blocks at the opposite positions, and detection clamping blocks are installed on the other two sliding blocks. The synchronous driving assembly comprises two connecting rod structures, the two ends of one connecting rod structure are connected with the two positioning clamping blocks respectively, and the two ends of the other connecting rod structure are connected with the detection clamping blocks respectively. The hydraulic control assembly is used for driving the two positioning clamping blocks and the two detection clamping blocks to clamp and detect the chip. According to the clock chip test tool, the chip is automatically aligned and positioned through the clamping assembly, so that the probe and the pin of the chip are automatically aligned and pressed, good contact is ensured, and the detection efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to test frock technical field, concretely relates to a clock chip test frock. BACKGROUND

[0002] Test clock chip, aim at through simulating various conditions under actual working scene, check its output signal's frequency accuracy, phase stability, power consumption performance and in different temperature, voltage fluctuation's adaptability etc. Key index. Help to discover and solve potential design defects or manufacturing defects early, avoid unqualified products to flow into the market.

[0003] The existing test frock generally adopts manual or semi-automatic operation mode, that is, the operator needs to manually place each clock chip in the test fixture, accurately align and clamp to ensure good contact between the test probe and the chip pin. This operation method is not only inefficient, but also requires high skills of the operator, which may cause poor contact between the test probe and the pin, affecting the accuracy of the test result. In addition, improper operation or insufficient pressure on the conductive sheet during the test process may cause separation between the pin and the conductive sheet, causing signal interruption or instability, thereby affecting the reliability of the test result.

[0004] Therefore, we propose a clock chip test frock to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problem that the chip detection alignment positioning operation is difficult in the prior art, which may cause poor contact between the test probe and the pin, and proposes a clock chip test frock.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A clock chip test frock, comprising:

[0008] A box body is provided with two groups of mutually perpendicular sliding grooves on the top;

[0009] A clamping assembly, comprising a sliding block slidingly arranged in the sliding groove, wherein two sliding blocks in opposite positions are provided with positioning clamping blocks, and the other two sliding blocks are provided with detection clamping blocks;

[0010] A synchronous driving assembly, comprising two groups of connecting rod structures, wherein one end of each connecting rod structure is connected with two positioning clamping blocks, and the other end of the other connecting rod structure is connected with the detection clamping blocks;

[0011] A hydraulic control assembly for driving two positioning clamping blocks and two detection clamping blocks to clamp and detect the chip.

[0012] Preferably, the two sliding grooves in the same group are arranged in line, and the two groups of sliding grooves are arranged along the X-axis and Y-axis directions, respectively.

[0013] Preferably, a plurality of rollers are equidistantly arranged on the clamping surface of the positioning clamp block along the length direction, and a pressing strip is arranged on the upper edge of the clamping surface of the positioning clamp block.

[0014] Preferably, a mounting cavity is arranged in the detection clamp block, a plurality of detection frames are detachably mounted in the mounting cavity, and probes are arranged in the detection frames.

[0015] Preferably, grooves are arranged on the top inner surface and the bottom inner surface of the mounting cavity, and two arc-shaped elastic sheets are fixedly arranged on the side wall of the detection frame and matched with the grooves.

[0016] Preferably, the connecting rod structure comprises a center connecting rod, the center connecting rod is rotationally connected with the shaft body mounted at the center position of the top of the box body at the midpoint position of the center connecting rod, and the two ends of the center connecting rod are rotationally connected with the bottoms of the two sliders in the same group through deflection connecting rods, respectively.

[0017] Preferably, the hydraulic control assembly comprises a four-way pipe fixedly mounted in the box body, and four ports of the four-way pipe are connected with:

[0018] a main hydraulic cylinder, a main piston being sealingly and slidably arranged in the main hydraulic cylinder, and the main piston being fixedly connected with the telescopic end of the air cylinder;

[0019] two auxiliary hydraulic cylinders, the two auxiliary hydraulic cylinders being arranged in line with the two adjacent sliding grooves, respectively, one of the auxiliary hydraulic cylinders corresponding to the positioning clamp block, and the other auxiliary hydraulic cylinder corresponding to the detection clamp block, a push rod being sealingly and slidably arranged in the auxiliary hydraulic cylinder, the push rod being fixedly connected with the slider adjacent to the auxiliary hydraulic cylinder, and a compression spring II being arranged between the auxiliary hydraulic cylinder corresponding to the detection clamp block and the push rod.

[0020] a pressure relief structure for buffering excess pressure provided by the main hydraulic cylinder.

[0021] Preferably, the pressure relief structure comprises a pressure relief pipe, a pressure relief piston being sealingly and slidably arranged in the pressure relief pipe, and a compression spring II having a greater elastic force than the compression spring I being arranged between the pressure relief piston and the pressure relief pipe.

[0022] In summary, the utility model has the following beneficial technical effects and advantages:

[0023] The clock chip test tool automatically aligns and positions the chip through the clamping assembly, clamps the chip through the synchronous driving assembly and two positioning clamp blocks, and aligns the chip through the detection clamp block, so that the probes and the pins of the chip are automatically aligned and pressed, good contact is ensured, and the detection efficiency is high.

[0024] The clock chip test tool drives through setting a hydraulic control component, and under the action of the first compression spring, the chip is first aligned on the side without pins, and then the first compression spring is compressed for positioning after the alignment is completed, so that the operation difficulty is reduced, and the positioning accuracy is high during control detection.

[0025] The clock chip test tool sets a pressure relief structure, the hydraulic control component can apply excessive pressure, keeps the test probe in good contact with the pin, ensures the accuracy of the test result, and the excessive pressure is discharged through the pressure relief structure, so that the pin of the chip is prevented from being damaged due to excessive pressure. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the utility model;

[0027] Figure 2 It is an internal structure schematic view of the utility model;

[0028] Figure 3 It is a top view structure schematic view of the utility model;

[0029] Figure 4 It is a structure schematic view of the positioning clamp block in the utility model;

[0030] Figure 5 It is a structure schematic view of the detection clamp block in the utility model;

[0031] Figure 6 It is Figure 3 It is a structure schematic view of section A-A' in the utility model;

[0032] Figure 7 It is Figure 3 It is a structure schematic view of section B-B' in the utility model;

[0033] Figure 8 It is Figure 7 It is an enlarged structure schematic view of part C in the utility model.

[0034] In the figure: 1, box body;11, sliding groove;2, clamping assembly;21, sliding block;22, positioning clamp block;221, roller;222, pressing strip;23, detection clamp block;231, detection frame;232, probe;233, arc spring sheet;3, synchronous driving assembly;31, center connecting rod;32, deflection connecting rod;4, hydraulic control component;41, four-way pipe;42, main hydraulic cylinder;421, main piston;43, auxiliary hydraulic cylinder;431, push rod;432, compression spring one;44, pressure relief structure;441, pressure relief pipe;442, pressure relief piston;443, compression spring two;45, air cylinder;5, chip. DETAILED DESCRIPTION

[0035] The technical scheme of the utility model will be described clearly and completely in connection with the drawings.

[0036] With reference to Figures 1-3 A clock chip test tool, comprising a box body 1, a clamping assembly 2, a synchronous driving assembly 3 and a hydraulic control assembly 4, the chip 5 can be clamped and positioned through the clamping assembly 2, the operation efficiency is improved, the generation of human error is reduced, the driving assembly can control the clamping assembly 2 to find and position in different directions in the order, the position connection of the pin is ensured to be accurate, and under the action of the hydraulic control assembly 4, sufficient pressure can be provided, the pin of the chip 5 is in good contact, and the detection efficiency and the accuracy of the detection result are improved.

[0037] Two groups of mutually perpendicular sliding grooves 11 are formed in the upper portion of the box body 1, the two sliding grooves 11 in the same group are arranged in line, and the two groups of sliding grooves 11 are arranged along the X-axis and Y-axis directions respectively.

[0038] With reference to Figures 4-8 The clamping assembly 2 comprises sliding blocks 21 slidingly arranged in the sliding grooves 11, the sliding blocks 21 can stably move in the sliding grooves 11, and under the action of the synchronous driving assembly 3, the two sliding blocks 21 in the same group keep synchronous reverse movement, wherein the two sliding blocks 21 in opposite positions are provided with positioning clamping blocks 22, the positioning clamping blocks 22 are used for clamping the chip 5 in the X-axis direction when the positioning clamping blocks 22 are close to each other, so that the position of the chip 5 in the Y-axis direction is kept stable, and the other two sliding blocks 21 are provided with detection clamping blocks 23, after the clamping of the positioning clamping blocks 22 is completed, the detection clamping blocks 23 are used for clamping the chip 5 in the Y-axis direction, and at the same time, the electrical connection of the pin of the chip 5 is completed, so that the chip 5 is tested, and after the test is completed, the plurality of sliding blocks 21 are controlled to move away from each other, so that the chip 5 can be taken out.

[0039] A plurality of rollers 221 are equidistantly arranged on the clamping surface of the positioning clamping block 22 along the length direction, since the positioning clamping block 22 clamps the chip 5 in the X-axis direction, the position of the chip 5 in the Y-axis direction is not centered, when the detection clamping block 23 clamps and positions, the chip 5 will also appear displacement in the Y-axis direction, the rollers 221 are used for avoiding the hard friction between the shell of the chip 5 and the positioning clamping block 22, so as to protect the chip 5 to a certain extent, the position of the chip 5 in the Y-axis direction is facilitated to move, and the upper edge of the clamping surface of the positioning clamping block 22 is provided with a pressing strip 222, when the positioning clamping block 22 clamps the chip 5, the pressing strip 222 can clamp the upper surface of the chip 5, so that the chip 5 cannot be bounced out of the positioning clamping block 22 under the action of the clamping force.

[0040] With reference to Figure 5 and 8The detection clamp 23 is provided with a mounting cavity, and a plurality of detection frames 231 are detachably mounted in the mounting cavity. The detection frame 231 is provided with a probe 232. The number and spacing of the pins of the chip 5 to be detected can be actively adjusted according to the number and spacing of the pins of the chip 5 to be detected. Different models of chips 5 can be detected. Therefore, different specifications of chips 5 can be adapted. A test tool does not need to be separately opened and manufactured for one type of chip 5, thereby reducing production costs. When the detection clamps 23 are close to each other to clamp and position the chip 5, the detection frame 231 corresponds to the pin, and the probe 232 abuts against the pin until the electrical connection is achieved. The outer end of the probe 232 is integrated on the terminal through a wire, which is convenient for connecting the test equipment.

[0041] The inner top surface and the inner bottom surface of the mounting cavity are provided with grooves. The side wall of the detection frame 231 is fixedly provided with two arc-shaped elastic sheets 233. The arc-shaped elastic sheet 233 is matched with the groove. When the detection frame 231 is disassembled, the arc-shaped elastic sheet 233 is forced into the mounting cavity, so that the arc-shaped elastic sheet 233 is deformed until the arc-shaped elastic sheet 233 is restored after entering the mounting cavity, so that the arc-shaped elastic sheet 233 is clamped and tightened with the groove.

[0042] Referring to Figure 3 The synchronous driving assembly 3 includes two groups of connecting rod structures. One end of one group of connecting rod structures is connected to two positioning clamps 22, and the other end of the other group of connecting rod structures is connected to two detection clamps 23. The two groups of connecting rod structures control the positioning clamps 22 and the detection clamps 23, respectively. The positioning clamps 22 and the detection clamps 23 are clamped in sequence. Usually, the two long sides of the chip 5 are provided with pins, and the short side is smooth. The pin contacts the detection clamp 23 and blocks the displacement in the X-axis direction. Therefore, the positioning clamps 22 are used to complete the positioning in the reverse direction of the X-axis, and then the Y-axis direction is clamped. After the chip 5 is centered, all the pins are in contact with the probe 232.

[0043] Referring to Figure 2 The connecting rod structure includes a center connecting rod 31. The midpoint of the center connecting rod 31 is rotationally connected to the shaft body mounted at the center position of the top of the box body 1. The two ends of the center connecting rod 31 are rotationally connected to the bottoms of the two sliders 21 in the same group through deflection connecting rods 32. When the slider 21 is driven to move along the sliding groove 11 by the hydraulic control assembly 4, the center connecting rod 31 is driven to rotate through the deflection connecting rod 32. Since the two deflection connecting rods 32 are symmetrically arranged, the deflection connecting rod 32 at the other end of the center connecting rod 31 has the same rotation angle. The two sliders 21 in the same group have the same moving distance and opposite moving directions. The two sliders 21 move synchronously inward or outward.

[0044] The hydraulic control assembly 4 is used to drive the two positioning clamps 22 and the two detection clamps 23 to clamp and detect the chip 5.

[0045] Referring to Figure 2 and Figures 6-7 The hydraulic control assembly 4 comprises a four-way pipe 41 fixedly installed in the box body 1, four ports of the four-way pipe 41 are respectively connected with a main hydraulic cylinder 42, a pressure relief structure 44 and two auxiliary hydraulic cylinders 43, the main hydraulic cylinder 42, the pressure relief structure 44 and the two auxiliary hydraulic cylinders 43 form a complete hydraulic system, and the pressure provided by the main hydraulic cylinder 42 is shared by the auxiliary hydraulic cylinders 43 and the pressure relief structure 44.

[0046] The main hydraulic cylinder 42 is sealingly and slidably provided with a main piston 421, the main piston 421 is fixedly connected with the telescopic end of a pneumatic cylinder 45, the pneumatic cylinder 45 is telescoped to control the movement of the main piston 421, so that the pressure in the main hydraulic cylinder 42 changes, the pressure in the hydraulic system tends to be stable, and the pressure in the main hydraulic cylinder 42 is transferred to the rest.

[0047] The two auxiliary hydraulic cylinders 43 are respectively installed in line with the two adjacent sliding grooves 11, one of the auxiliary hydraulic cylinders 43 corresponds to the positioning clamp block 22, and the other auxiliary hydraulic cylinder 43 corresponds to the detection clamp block 23, the auxiliary hydraulic cylinder 43 is sealingly and slidably provided with a push rod 431, the push rod 431 is fixedly connected with the sliding block 21, when the pressure in the hydraulic system changes, the position of the push rod 431 is affected, so that the push rod 431 is elongated or shortened, when the main hydraulic cylinder 42 is pressurized, the pressure in the auxiliary hydraulic cylinder 43 increases, so that the push rod 431 extends outward and pushes the sliding block 21 to move, a compression spring 432 is arranged between the auxiliary hydraulic cylinder 43 corresponding to the detection clamp block 23 and the push rod 431, under the action of the compression spring 432, the hydraulic force acts on the auxiliary hydraulic cylinder 43 corresponding to the positioning clamp block 22 first, so that the positioning clamp block 22 clamps the chip 5, after clamping is completed, the positioning clamp block 22 cannot move any more, so the hydraulic force needs to overcome the elastic force of the compression spring 432, so that the push rod 431 corresponding to the detection clamp block 23 extends outward, under the action of the compression spring 432, the batch clamping of the positioning clamp block 22 and the detection clamp block 23 is realized, and the influence of the pins of the chip 5 on the alignment positioning is avoided.

[0048] The pressure relief structure 44 is used for buffering the excess pressure provided by the main hydraulic cylinder 42, the hydraulic control assembly 4 can apply excessive pressure to keep the probe 232 in good contact with the pins, so as to ensure the accuracy of the test result, and the excessive pressure is discharged through the pressure relief structure 44, so as to avoid that the pins of the chip 5 are damaged due to excessive pressure.

[0049] The pressure relief structure 44 comprises a pressure relief pipe 441, a pressure relief piston 442 is sealingly and slidingly arranged in the pressure relief pipe 441, and a compression spring 443 with a greater elastic force than the compression spring 432 is arranged between the pressure relief piston 442 and the pressure relief pipe 441. Since the compression spring 443 has a greater elastic force, a greater pressure is required to compress the pressure relief piston 442, and the pressure is preferentially distributed to the two auxiliary hydraulic cylinders 43. When the positioning clamping blocks 22 and the detection clamping blocks 23 both achieve clamping and fixing of the chip 5, the push rod 431 cannot be elongated any more. At this time, the excessive hydraulic pressure can only be discharged outward by overcoming the compression spring 443 by the pressure relief piston 442.

[0050] The working principle of the utility model is as follows:

[0051] In use, the chip 5 is placed on the box body 1, and it is ensured that both sides containing the pins are located on the Y axis, the cylinder 45 is started, the main piston 421 is moved by elongation of the cylinder 45, the pressure in the main hydraulic cylinder 42 is increased, the hydraulic force acts on the auxiliary hydraulic cylinder 43 corresponding to the positioning clamping block 22 first, the positioning clamping block 22 clamps the chip 5, after clamping, the positioning clamping block 22 cannot be moved any more, therefore, the hydraulic force needs to overcome the elastic force of the compression spring 432, the push rod 431 corresponding to the detection clamping block 23 is extended outward, and the positioning clamping block 22 and the detection clamping block 23 are clamped in batches under the action of the compression spring 432. When the detection clamping blocks 23 are close to each other and clamp and position the chip 5, the detection frame 231 corresponds to the pins, until the probes 232 abut against the pins, electrical connection is realized, the outer ends of the probes 232 are integrated on the connecting head through wires, and connection to test equipment is facilitated.

[0052] When the positioning clamping blocks 22 and the detection clamping blocks 23 both achieve clamping and fixing of the chip 5, the push rod 431 cannot be elongated any more. At this time, the excessive hydraulic pressure can only be discharged outward by overcoming the compression spring 443 by the pressure relief piston 442. Since the excessive pressure is discharged by the pressure relief structure 44, the pressure fluctuation in the hydraulic system is offset by the expansion and contraction of the compression spring 443, the probes 232 are in good contact with the pins, the accuracy of test results is ensured, and the excessive pressure is discharged by the pressure relief structure 44, so that the pins of the chip 5 are prevented from being damaged due to excessive pressure.

Claims

1. A clock chip test fixture, characterized by, Include: Box (1), clamping assembly (2), synchronous drive assembly (3), hydraulic control assembly (4), the box (1) is provided with two groups of mutually perpendicular sliding slot (11) on the top; The clamping assembly (2) includes a sliding block (21) slidingly disposed in the sliding slot (11), wherein two opposite sliding blocks (21) are provided with positioning clamping blocks (22), and the other two sliding blocks (21) are provided with detection clamping blocks (23); The synchronous drive assembly (3) includes two groups of connecting rod structures, wherein one end of one group of connecting rod structures is connected with the positioning clamping block (22), and the other end of the other group of connecting rod structures is connected with the detection clamping block (23); The hydraulic control assembly (4) is used for driving the two positioning clamping blocks (22) and the two detection clamping blocks (23) to clamp and detect the chip (5).

2. The clock chip test tool of claim 1, wherein, The two sliding slots (11) in the same group are arranged in line, and the two groups of sliding slots (11) are arranged along the X-axis and Y-axis directions, respectively.

3. The clock chip test fixture of claim 1, wherein: The clamping surface of the positioning clamping block (22) is provided with a plurality of rollers (221) equidistantly arranged along the length direction, and the upper edge of the clamping surface of the positioning clamping block (22) is provided with a pressing strip (222).

4. The clock chip test fixture of claim 1, wherein, The detection clamping block (23) is provided with a mounting cavity, and a plurality of detection frames (231) are detachably mounted in the mounting cavity.

5. The clock chip test fixture of claim 4, wherein: The inner top surface and the inner bottom surface of the mounting cavity are provided with grooves, and the side wall of the detection frame (231) is fixedly provided with two arc-shaped elastic sheets (233) matched with the grooves.

6. The clock chip test fixture of claim 1, wherein, The connecting rod structure includes a center connecting rod (31), and the midpoint of the center connecting rod (31) is rotationally connected with the shaft body installed at the center position of the inner top of the box (1), and the two ends of the center connecting rod (31) are rotationally connected with the bottoms of the two sliding blocks (21) in the same group through deflection connecting rods (32).

7. The clock chip test fixture of claim 1, wherein: The hydraulic control assembly (4) includes a four-way pipe (41) fixedly installed in the box (1), and the four ports of the four-way pipe (41) are connected with a main hydraulic cylinder (42), two auxiliary hydraulic cylinders (43) and a pressure relief structure (44), respectively, a main piston (421) is sealingly and slidingly arranged in the main hydraulic cylinder (42), and the main piston (421) is fixedly connected with the telescopic end of a cylinder (45); the two auxiliary hydraulic cylinders (43) are installed in line with the adjacent two sliding slots (11), one of the auxiliary hydraulic cylinders (43) corresponds to the positioning clamping block (22), and the other auxiliary hydraulic cylinder (43) corresponds to the detection clamping block (23), a push rod (431) is sealingly and slidingly arranged in the auxiliary hydraulic cylinder (43), the push rod (431) is fixedly connected with the adjacent sliding block (21), and a compression spring (432) is arranged between the auxiliary hydraulic cylinder (43) corresponding to the detection clamping block (23) and the push rod (431); the pressure relief structure (44) is used for buffering the excess pressure provided by the main hydraulic cylinder (42).

8. The clock chip test fixture of claim 7, wherein: The pressure relief structure (44) comprises a pressure relief pipe (441) in which a pressure relief piston (442) is sealingly and slidingly arranged, and a compression spring (443) with a greater elastic force than the compression spring (432) is arranged between the pressure relief piston (442) and the pressure relief pipe (441).

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