Heat dissipation type detection jig

Abstract

The utility model relates to the technical field of resistance detection, and relates to a heat dissipation type detection jig. According to the utility model, the resistor product is positioned through the positioning groove on the positioning jig, and the moving assembly drives the detection assembly to move towards the resistor product, so that the plurality of probe parts on the detection frame are connected with the resistor product, and the resistance value of the resistor product can be obtained through an external test instrument. The same repeatability of resistance test of the resistor product is ensured, and the test accuracy is ensured; a heat dissipation through hole is formed in the positioning groove, so that when the resistor product is detected by a probe, a space at the bottom of the resistor product is in contact with air, and a heat dissipation effect is achieved; the moving assembly drives the plurality of probe parts to detect the resistor element in a manner of pressing down from the top, so that the probe parts can be exposed in the air, and a heat dissipation effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance detection, and particularly to a heat dissipation type detection fixture. Background Art

[0002] Resistors are usually directly called resistors. When current resistors are tested, they heat up severely, causing the temperature of the resistor to rise, thereby changing the resistance value of the resistor. The base and clamping block of the existing fixture for placing products will form a relatively closed space when clamping the product, which will be detrimental to the heat dissipation space required for the resistor product to generate heat during testing, and will affect the test performance. At the same time, the test probe is also installed in the fixture base during testing, and the test probe has no space to dissipate the heat, which ultimately affects the detection accuracy of the actual current and voltage detection. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a heat dissipation type detection fixture which ensures the same repeatability of resistance value test of resistor products, ensures the test accuracy and has good heat dissipation effect.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model to solve its technical problems is:

[0005] A heat dissipation detection fixture, comprising:

[0006] A machine platform, on which a positioning station is arranged, and a positioning frame is arranged on the positioning station;

[0007] A positioning fixture is arranged on the positioning frame, the positioning fixture is provided with a positioning groove for loading the resistor product, and the positioning groove is provided with a heat dissipation through hole;

[0008] A detection component is arranged above the positioning fixture, and the detection component is used to perform performance detection on the resistor product on the positioning fixture;

[0009] A moving component is arranged on the machine platform, the moving component is drivingly connected to the detection component, and the moving component is used to drive the detection component and the resistor product to move relative to each other;

[0010] The detection component includes a detection frame and a plurality of probe components, the plurality of probe components are arranged on the detection frame, the detection frame is drivingly connected to the moving component, and the probe components are arranged relative to the resistance product.

[0011] In one embodiment of the utility model, the cross-sectional area of ​​the heat dissipation through hole is smaller than the cross-sectional area of ​​the positioning groove, so that a support step is formed at the connection between the heat dissipation through hole and the positioning groove, and a positioning block is provided on the heat dissipation through hole, and the resistor product is positioned by the support step and the positioning block.

[0012] In one embodiment of the present invention, the depth of the positioning groove is 1 / 4-1 / 2 of the thickness of the resistor product, so that the upper part of the resistor product extends out of the positioning groove.

[0013] In one embodiment of the utility model, a plurality of small holes are provided on the inner side wall of the heat dissipation through hole, and the small holes are arranged obliquely downward on the inner side wall of the heat dissipation through hole, and air is blown into the heat dissipation through the small holes to dissipate heat from the resistor product on the positioning groove.

[0014] In one embodiment of the utility model, the positioning frame includes a plurality of guide rods, the guide rods are vertically arranged on the machine platform, the positioning jig is provided with guide holes matching the guide rods, the guide rods are passed through the guide holes, the positioning jig is provided with connecting components matching the guide rods, and the guide rods are connected to the connecting components.

[0015] In one embodiment of the utility model, the connecting component includes a fixing screw, a fixing screw hole is provided on the positioning fixture, the fixing screw hole is connected to the guide hole, a fixing screw is provided on the fixing screw hole, the fixing screw is connected to the guide rod, and an indicating scale is provided on the guide rod.

[0016] In one embodiment of the utility model, the moving assembly includes a moving seat, a guide tube is provided on the moving seat, a guide rod is slidably provided on the guide tube, the upper part of the moving seat is hinged to the pull rod, the middle part of the pull rod is hinged to the connecting rod, the other end of the connecting rod is hinged to the guide rod, and the free end of the guide rod is connected to the detection frame.

[0017] In one embodiment of the utility model, a guide protrusion is provided on the guide tube, a guide groove matching the guide protrusion is provided on the guide rod, and the guide protrusion is slidably arranged on the guide groove.

[0018] In one embodiment of the utility model, the probe component includes a detection probe, a detection hole is opened on the detection frame, a universal ball head is provided on the detection hole, an assembly hole is provided on the universal ball head, the detection probe is inserted into the assembly hole, and the detection probe is driven to move by the universal ball head so as to be set relative to the test point of the resistance product.

[0019] In one embodiment of the utility model, the universal ball head includes two hemispherical fixed blocks with the same structure, the fixed blocks are provided with a fixing groove, the fixing groove is provided with an anti-slip tooth surface, the fixing grooves on the two fixing blocks are arranged relative to each other to form an assembly hole, the detection frame is provided with a positioning screw hole, the positioning screw hole is connected with the detection hole, the positioning screw hole is provided with a positioning screw, and the positioning screw is used to drive the two fixing blocks to press against the detection hole to clamp the detection probe.

[0020] Beneficial effects of the utility model:

[0021] The utility model positions the resistor product through the positioning groove on the positioning fixture, and the moving component drives the detection component to move toward the resistor product, so that multiple probe components on the detection frame are connected with the resistor product, and the resistance value of the resistor product is obtained through an external test instrument, thereby ensuring the same repeatability of the resistance value test of the resistor product and the test accuracy; the heat dissipation through holes provided on the positioning groove can ensure that when the resistor product is detected by the probe, there is space at the bottom of the resistor product to contact the air, thereby achieving the heat dissipation effect; the moving component drives multiple probe components to press down from the top to detect the resistor element, so that the probe components can be exposed to the air, thereby achieving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic diagram of a heat dissipation type detection fixture.

[0023] Figure 2 It is a schematic diagram of the detection component of the utility model.

[0024] Figure 3 It is a schematic diagram of a positioning fixture of the utility model.

[0025] Explanation of the numbers in the figure: 1. Machine table; 2. Positioning frame; 21. Guide rod; 22. Guide hole; 23. Fixing screw; 3. Positioning fixture; 4. Positioning slot; 41. Heat dissipation hole; 42. Support step; 44. Positioning block; 45. Small hole; 5. Moving component; 51. Moving seat; 52. Guide tube; 53. Guide rod; 54. Pull rod; 55. Connecting rod; 6. Detection frame; 7. Probe component; 71. Detection probe; 72. Detection hole; 73. Positioning screw hole; 74. Universal ball head; 75. Fixing block; 76. Fixing slot. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] Reference Figure 1-3As shown, a heat dissipation detection fixture includes:

[0028] A machine platform 1 is provided with a positioning station, and a positioning frame 2 is provided on the positioning station;

[0029] A positioning fixture 3 is arranged on the positioning frame 2, and a positioning groove 4 for loading a resistor product is arranged on the positioning fixture 3, and a heat dissipation through hole 41 is opened on the positioning groove 4;

[0030] A detection component is arranged above the positioning fixture 3, and the detection component is used to perform performance detection on the resistor product on the positioning fixture 3;

[0031] A moving component 5 is disposed on the machine platform 1, and is drivingly connected to the detection component. The moving component 5 is used to drive the detection component and the resistor product to move relative to each other;

[0032] The detection component includes a detection frame 6 and a plurality of probe components 7. The plurality of probe components 7 are arranged on the detection frame 6. The detection frame 6 is drivingly connected to the moving component 5. The probe components 7 are arranged relative to the resistance product.

[0033] The utility model positions the resistor product through the positioning groove 4 on the positioning fixture 3, and the moving component 5 drives the detection component to move toward the resistor product, so that the multiple probe components 7 on the detection frame 6 are connected to the resistor product, and the resistance value of the resistor product is obtained through an external test instrument, thereby ensuring the same repeatability of the resistance value test of the resistor product and the test accuracy; the heat dissipation through-holes 41 provided on the positioning groove 4 can ensure that when the resistor product is detected by the probe, there is space at the bottom of the resistor product to contact the air, thereby achieving the heat dissipation effect; the moving component 5 drives the multiple probe components 7 to press down from the top to detect the resistor element, so that the probe components 7 can be exposed to the air, thereby achieving the heat dissipation effect.

[0034] In one embodiment of the utility model, the cross-sectional area of ​​the heat dissipation through hole 41 is smaller than the cross-sectional area of ​​the positioning groove 4, so that a support step 42 is formed at the connection between the heat dissipation through hole 41 and the positioning groove 4, and a positioning block 44 is provided on the heat dissipation through hole 41, and the resistor product is positioned by the support step 42 and the positioning block 44.

[0035] Specifically, the resistor product is placed on the positioning groove 4, and the resistor product is supported and positioned by the supporting step 42 and the positioning block 44, so that the resistor product can be quickly positioned, the structure is simple, and it is practical and convenient.

[0036] In one embodiment of the present invention, the depth of the positioning groove 4 is 1 / 4-1 / 2 of the thickness of the resistor product, so that the upper part of the resistor product extends out of the positioning groove 4, allowing the resistor product to contact the air for easy heat dissipation.

[0037] In one embodiment of the utility model, a plurality of small holes 45 are opened on the inner wall of the heat dissipation through hole 41. The small holes 45 are arranged obliquely downward on the inner wall of the heat dissipation through hole 41. Air is blown to the heat dissipation through hole 41 through the small holes 45 to dissipate heat from the resistor product on the positioning groove 4.

[0038] Specifically, the small hole 45 is connected to the ventilation equipment, and air is blown to the heat dissipation through hole 41 through the small hole 45 to dissipate the heat of the resistor product on the positioning groove 4. The small hole 45 is inclined in the direction of the heat dissipation through hole 41, so that the blown air is discharged from the heat dissipation through hole 41, which can not only dissipate the heat of the resistor product, but also form a certain negative pressure on the positioning groove 4, so that the resistor product can be better adsorbed and fixed on the positioning groove 4, so that the positioning effect is better.

[0039] In one embodiment of the utility model, the positioning frame 2 includes a plurality of guide rods 21, the guide rods 21 are vertically arranged on the machine 1, the positioning fixture 3 is provided with guide holes 22 matching the guide rods 21, the guide rods 21 are passed through the guide holes 22, the positioning fixture 3 is provided with connecting components matching the guide rods 21, and the guide rods 21 are connected to the connecting components.

[0040] In one embodiment of the utility model, the connecting component includes a fixing screw 23, a fixing screw hole is provided on the positioning fixture 3, the fixing screw hole is connected to the guide hole 22, a fixing screw 23 is provided on the fixing screw hole, the fixing screw 23 is connected to the guide rod 21, and an indicating scale is provided on the guide rod 21.

[0041] Specifically, the positioning fixture 3 moves on the guide rod 21, and after being adjusted to a suitable height, the fixed screw 23 is connected to the guide rod 21 to fix the position of the positioning fixture 3. The height position of the resistor product can be quickly adjusted, and the application range is wide, and it is suitable for the detection of resistor products of various specifications.

[0042] In one embodiment of the utility model, the moving assembly 5 includes a moving seat 51, a guide tube 52 is provided on the moving seat 51, a guide rod 53 is slidably provided on the guide tube 52, the upper part of the moving seat 51 is hinged to the pull rod 54, the middle part of the pull rod 54 is hinged to the connecting rod 55, the other end of the connecting rod 55 is hinged to the guide rod 53, and the free end of the guide rod 53 is connected to the detection frame 6.

[0043] Specifically, pulling the pull rod 54 drives the guide rod 53 to slide on the guide tube 52, driving the multiple detection probes 71 on the detection frame 6 to connect with the test points of the resistor product. The moving component 5 adopts a push-pull clamp structure, which can facilitate the position movement of the detection frame 6 to ensure the test accuracy.

[0044] In an embodiment of the present utility model, a guide protrusion is provided on the guide tube 52, a guide groove matching the guide protrusion is provided on the guide rod 53, and the guide protrusion is slidably arranged on the guide groove.

[0045] Specifically, the guide protrusion is slidably arranged on the guide groove, which adopts the existing guide structure, similar to the matching sliding structure of the keyway and the key, so that the lifting and lowering accuracy of the detection frame 6 is higher, and the position accuracy of the detection probe 71 and the detection point of the resistor product is higher, thereby improving the detection efficiency.

[0046] In one embodiment of the utility model, the probe component 7 includes a detection probe 71, a detection hole 72 is opened on the detection frame 6, a universal ball head 74 is provided on the detection hole 72, an assembly hole is provided on the universal ball head 74, the detection probe 71 is passed through the assembly hole, and the detection probe 71 is driven by the universal ball head 74 to move so as to be set relative to the test point of the resistor product.

[0047] Specifically, the detection probe 71 is driven to move by the universal ball head 74 so as to be set relative to the test point of the resistor product, so that the pressing depth and position between the detection probe 71 and the test point of the resistor product can be adjusted during the detection, and the adjustment is quick and convenient; it is ensured that the detection probe 71 applies a continuous and stable pressing force, thereby ensuring the stability and consistency of the force between the detection probe 71 and the resistor product during the test, thereby improving the accuracy and consistency, comparability and repeatability of the test results.

[0048] In one embodiment of the utility model, the universal ball head 74 includes two hemispherical fixed blocks 75 of the same structure, the fixed blocks 75 are provided with a fixing groove 76, the fixing groove 76 is provided with an anti-slip tooth surface, the fixing grooves 76 on the two fixing blocks 75 are arranged relative to each other to form an assembly hole, the detection frame 6 is provided with a positioning screw hole 73, the positioning screw hole 73 is connected to the detection hole 72, the positioning screw hole 73 is provided with a positioning screw, and the positioning screw is used to drive the two fixing blocks 75 to press against the detection hole 72 to clamp the detection probe 71.

[0049] Specifically, the universal ball head includes two hemispherical fixed blocks 75 of the same structure. The fixing grooves 76 on the two fixing blocks 75 are arranged relatively to form an assembly hole. After the two fixing blocks 75 are loosened, it is convenient to adjust the position of the detection probe 71 on the universal ball head 74. The positioning screw is used to drive the two fixing blocks 75 to press against the detection hole 72 to clamp the detection probe 71, which can ensure that the position of the detection probe 71 is quickly locked. The anti-slip tooth surface arranged on the fixing groove 76 can ensure the connection stability between the universal ball head 74 and the detection probe 71, thereby ensuring the detection accuracy.

[0050] Usage process

[0051] The resistor product is placed on the positioning groove 4, and the resistor product is supported and positioned by the supporting step 42 and the positioning block 44. The small hole 45 is connected to the ventilation equipment, and air is blown to the heat dissipation through hole 41 through the small hole 45 to dissipate the heat of the resistor product on the positioning groove 4. The inclined direction of the small hole 45 is obliquely toward the heat dissipation through hole 41, so that the blown air is discharged from the heat dissipation through hole 41, which can not only dissipate the heat of the resistor product, but also form a certain negative pressure on the positioning groove 4, so that the resistor product is better adsorbed and fixed on the positioning groove 4, and the universal ball head 7 is used. The detection probe 71 is driven to move so as to be arranged relative to the test point of the resistor product. The positioning screw is used to drive the two fixing blocks 75 to press against the detection hole 72 so as to clamp the detection probe 71, thereby completing the position fixation of each detection probe 71. The pull rod 54 is pulled to drive the guide rod 53 to slide on the guide tube 52, thereby driving the multiple detection probes 71 on the detection frame 6 to be connected with the test point of the resistor product. The resistance value of the resistor product is obtained by connecting an external test instrument, thereby ensuring the same repeatability of the resistance value test of the resistor product and ensuring the test accuracy.

[0052] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A heat dissipation detection fixture, characterized in that: include: A machine platform, on which a positioning station is arranged, and a positioning frame is arranged on the positioning station; A positioning fixture is arranged on the positioning frame, the positioning fixture is provided with a positioning groove for loading the resistor product, and the positioning groove is provided with a heat dissipation through hole; A detection component is arranged above the positioning fixture, and the detection component is used to perform performance detection on the resistor product on the positioning fixture; A moving component is arranged on the machine platform, the moving component is drivingly connected to the detection component, and the moving component is used to drive the detection component and the resistor product to move relative to each other; The detection component includes a detection frame and a plurality of probe components, the plurality of probe components are arranged on the detection frame, the detection frame is drivingly connected to the moving component, and the probe components are arranged relative to the resistance product.

2. The heat dissipation detection fixture according to claim 1, characterized in that: The cross-sectional area of ​​the heat dissipation through hole is smaller than the cross-sectional area of ​​the positioning groove, so that a support step is formed at the connection between the heat dissipation through hole and the positioning groove. A positioning block is provided on the heat dissipation through hole, and the resistor product is positioned by the support step and the positioning block.

3. The heat dissipation detection fixture according to claim 1, characterized in that: The depth of the positioning groove is 1 / 4-1 / 2 of the thickness of the resistor product, so that the upper part of the resistor product extends out of the positioning groove.

4. The heat dissipation detection fixture according to claim 1, characterized in that: A plurality of small holes are provided on the inner side wall of the heat dissipation through hole. The small holes are arranged obliquely downward on the inner side wall of the heat dissipation through hole. Air is blown to the heat dissipation through hole through the small holes to dissipate heat for the resistor product on the positioning groove.

5. The heat dissipation detection fixture according to claim 1, characterized in that: The positioning frame includes a plurality of guide rods, the guide rods are vertically arranged on the machine platform, the positioning fixture is provided with guide holes matching the guide rods, the guide rods are passed through the guide holes, the positioning fixture is provided with connecting components matching the guide rods, and the guide rods are connected to the connecting components.

6. The heat dissipation detection fixture as claimed in claim 5, characterized in that: The connecting component includes a fixing screw, a fixing screw hole is provided on the positioning fixture, the fixing screw hole is connected with the guide hole, a fixing screw is provided on the fixing screw hole, the fixing screw is connected with the guide rod, and an indicating scale is provided on the guide rod.

7. The heat dissipation detection fixture as claimed in claim 1, characterized in that: The moving assembly includes a moving seat, a guide tube is arranged on the moving seat, a guide rod is slidably arranged on the guide tube, the upper part of the moving seat is hinged to the pull rod, the middle part of the pull rod is hinged to the connecting rod, the other end of the connecting rod is hinged to the guide rod, and the free end of the guide rod is connected to the detection frame.

8. The heat dissipation detection fixture as claimed in claim 7, characterized in that: The guide tube is provided with a guide protrusion, the guide rod is provided with a guide groove matching the guide protrusion, and the guide protrusion is slidably arranged on the guide groove.

9. The heat dissipation detection fixture according to claim 1, characterized in that: The probe component includes a detection probe, a detection hole is opened on the detection frame, a universal ball head is arranged on the detection hole, an assembly hole is arranged on the universal ball head, the detection probe is inserted into the assembly hole, and the detection probe is driven by the universal ball head to move so as to be arranged relative to the test point of the resistance product.

10. The heat dissipation detection fixture as claimed in claim 9, characterized in that: The universal ball head includes two hemispherical fixed blocks with the same structure, the fixed blocks are provided with a fixing groove, the fixing groove is provided with an anti-slip tooth surface, the fixing grooves on the two fixing blocks are arranged opposite to each other to form an assembly hole, the detection frame is provided with a positioning screw hole, the positioning screw hole is connected with the detection hole, the positioning screw hole is provided with a positioning screw, and the positioning screw is used to drive the two fixing blocks to press against the detection hole to clamp the detection probe.

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