Test point location simulation jig with adjustable position

Abstract

The utility model relates to the technical field of resistance testing, and relates to a position-adjustable testing point location simulation jig. According to the utility model, after the resistor is positioned through the positioning jig, the test heads are connected with the adjusting assembly, and the first adjusting component and the second adjusting component drive the test probes on the test block to be adjusted to be connected with the test point positions of the resistor, so that the four test heads carry out performance test on the resistor on the positioning jig; meanwhile, due to the mechanical stability, the testing accuracy and stability are greatly improved, errors caused by searching for testing point positions through manual operation are avoided, meanwhile, the first adjusting component and the second adjusting component are perpendicular to each other, the testing head is arranged on the second adjusting component, position adjustment of the testing probe is achieved, and the testing efficiency is improved. Different test point positions can be simulated according to different test requirements of different resistor products.

Description

TECHNICAL FIELD

[0001] The utility model relates to resistance test technical field relates to a test point position simulation jig of adjustable position. BACKGROUND

[0002] In resistance components, resistance is the first key parameter. And high-precision resistance is mainly tested by Kelvin connection (also known as four-wire connection) resistance. In development and production, in order to quickly and accurately test the resistance of finished products, the test value of test fixture is as close as possible to the board resistance, and it is often necessary to spend a lot of time and manpower to find the best test point. There are four point positions, two of which pass current, and two of which pass voltage, which are generally in a diagonal symmetric relationship. Moreover, the size of the product is different, the resistance parameter is different, and the best test point is different. Since there is no such tool at present, manual search for these test points is needed every time by using test clamps or test probes, which is neither efficient nor stable because of hand muscle shaking, force direction and size, resulting in a large difference between the test point found and the board resistance, which has many adverse effects on actual application. SUMMARY

[0003] The utility model solves the technical problem to provide a test point position simulation jig of adjustable position which greatly improves the test accuracy and stability and can simulate different test point positions according to different test requirements of different resistance products.

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme of:

[0005] A test point position simulation jig of adjustable position, comprising:

[0006] A base is provided with a positioning station, and a positioning jig for positioning resistance is arranged on the positioning station;

[0007] A test mechanism is arranged above the base, the test mechanism comprises four test heads, the test head comprises a test block, a probe hole is arranged on the test block, a test probe is arranged on the probe hole, and the four test heads are used for performance test of the resistance on the positioning jig;

[0008] An adjusting mechanism is arranged on the base, the adjusting mechanism comprises four adjusting components, the four adjusting components are arranged on both sides of the base respectively, the test head and the adjusting component are arranged one by one, and the test head is connected with the adjusting component;

[0009] The adjusting assembly comprises a first adjusting component and a second adjusting component, the first adjusting component is arranged on the base, and the first adjusting component and the second adjusting component are arranged perpendicularly to each other, the test head is arranged on the second adjusting component, and the first adjusting component and the second adjusting component are used for driving the test probes on the test block to be adjusted to be connected with the test point positions of the resistor.

[0010] In an embodiment of the utility model, the first adjusting component includes a first plate, a guide groove is formed on the side of the base, the cross section of the guide groove is T-shaped structure, a T-shaped block is arranged on one side of the first plate, the T-shaped block is slidably arranged in the guide groove, a first bolt is arranged on the T-shaped block, and the free end of the first bolt abuts against the guide groove.

[0011] In an embodiment of the utility model, the second adjusting component includes a second plate and a sleeve, the sleeve is sleeved on the second plate, the test head is arranged on the sleeve, one end of the second plate is provided with an adjusting cylinder, the adjusting cylinder is sleeved on the first plate, a second bolt is arranged on the adjusting cylinder, the adjusting cylinder is connected with the first plate through the second bolt, and the second plate is arranged perpendicularly to the first plate.

[0012] In an embodiment of the utility model, a rotating hole is arranged on the adjusting cylinder, the second bolt is rotatably arranged on the rotating hole through a bearing, a first gear is arranged on the free end of the second bolt, a first rack is arranged on the first plate, the first gear is engaged with the first rack, and rotating the second bolt makes the first gear move along the first rack to drive the adjusting cylinder to move up and down along the first plate.

[0013] In an embodiment of the utility model, a rotating rod is arranged on the sleeve, a second gear is arranged on one end of the rotating rod, a second rack is arranged on the second plate, the second gear is engaged with the second rack, a knob is arranged on the rotating rod, and rotating the rotating rod makes the second gear move along the second rack to drive the sleeve to move left and right along the second plate.

[0014] In an embodiment of the utility model, a groove is arranged on one side of the guide groove, a scale is arranged on the groove; scale lines are arranged on the sides of the first plate and the second plate, and the scale lines are arranged opposite to the adjusting cylinder or the sleeve.

[0015] In an embodiment of the utility model, a mounting hole is formed on the test block, an inner bolt is arranged on the mounting hole, the mounting hole is in communication with the probe hole, a measurement groove is arranged on the test probe, and the test probe is connected with the test block through the inner bolt.

[0016] In an embodiment of the utility model, the junction of mounting hole and probe hole is provided with spherical groove, the spherical groove is provided with ball, the test probe is arranged on the through hole of ball, the probe hole is conical structure, the ball is made of elastic material, the ball is tightly pressed by inner bolt and is deformed and clamped on spherical groove.

[0017] In an embodiment of the utility model, the positioning jig comprises jig block, a plurality of positioning plates are arranged on the jig block, a plurality of positioning plates surround and form test position for loading resistance, and the jig block is provided with suction hole.

[0018] In an embodiment of the utility model, the inner side wall of positioning plate is provided with positioning hole, spring plunger is arranged in the positioning hole, and the spring plunger is arranged opposite to the resistance.

[0019] The utility model discloses the beneficial effects of:

[0020] The utility model discloses the positioning jig is positioned to resistance, and the test head is connected with the adjusting assembly, and the first adjusting part, second adjusting part drive test probe on test block to adjust to connect with the test point position of resistance, so that four test heads carry out performance test to the resistance on positioning jig, uses kelvin connection method, and because of the stability of machinery, the test accuracy and stability are greatly improved, and the error caused by manual operation to find test point position is avoided, and the first adjusting part, second adjusting part are perpendicularly arranged, and the test head is arranged on the second adjusting part, realize the position adjustment of test probe, and different test point positions can be simulated according to different test requirements of different resistance products. ACCURACY

[0021] Figure 1 It is a kind of adjustable position's test point position simulation jig schematic view of the utility model.

[0022] Figure 2 It is the sectional view of the utility model.

[0023] Figure 3 It is the side view of the utility model.

[0024] Figure 4 It is the test head schematic view of the utility model.

[0025] Figure 5 It is the positioning jig schematic view of the utility model.

[0026] Label explanation: 1, base; 11, wire; 2, positioning jig; 21, jig block; 22, positioning plate; 23, spring plunger; 24, test position; 3, adjusting assembly; 31, first plate; 311, T-shaped block; 312, guide groove; 313, first bolt; 32, adjusting cylinder; 33, second bolt; 34, first rack; 35, second plate; 36, second rack; 361, second gear; 362, rotating rod; 363, knob; 37, first gear; 4, test block; 41, test probe; 42, probe hole; 43, mounting hole; 44, inner bolt; 45, ball; 5, first adjusting component; 6, second adjusting component. DETAILED DESCRIPTION

[0027] The utility model will be further explained in connection with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0028] Reference Figures 1-5 As shown in the figure, a test point position simulation jig with adjustable position, comprising:

[0029] Base 1, which is provided with a positioning station, the positioning station is provided with a positioning jig 2 for positioning resistance;

[0030] Test mechanism, which is arranged above the base 1, the test mechanism comprises four test heads, the test head comprises a test block 4, the test block 4 is provided with a probe hole 42, the probe hole 42 is provided with a test probe 41, the test probe 41 is connected with test equipment through wire 11, four test heads are used for performance test of resistance on the positioning jig 2;

[0031] Adjusting mechanism, which is arranged on the base 1, the adjusting mechanism comprises four adjusting assemblies 3, four adjusting assemblies 3 are arranged on both sides of the base 1 respectively, the test head and the adjusting assembly 3 are arranged one by one, and the test head is connected with the adjusting assembly 3;

[0032] Among them, the adjusting assembly 3 comprises first adjusting component 5, second adjusting component 6, the first adjusting component 5 is arranged on the base 1, and the first adjusting component 5, second adjusting component 6 are arranged perpendicular to each other, the test head is arranged on the second adjusting component 6, and the first adjusting component 5, second adjusting component 6 are used to drive the test probe 41 on the test block 4 to adjust to be connected with the test point position of resistance.

[0033] The utility model discloses a positioning jig 2 is positioned to resistance, and test head is connected with the adjusting assembly 3, and the first adjusting part 5, second adjusting part 6 drive the test probe 41 on test block 4 to adjust to connect with the test point position of resistance, so that four test heads carry out performance test to the resistance on positioning jig 2, uses kelvin connection method, and simultaneously because the stability of machinery, greatly promotes the test accuracy and stability, avoids the error that manual operation seeks test point position brings, and simultaneously first adjusting part 5, second adjusting part 6 are mutually perpendicular and set up, and test head sets up on second adjusting part 6, realizes the position adjustment of test probe 41, can simulate different test point positions according to different test requirements of different resistance products.

[0034] In an embodiment of the utility model, the first adjusting part 5 includes first board 31, the lateral surface of base 1 is opened with guide slot 312, the section of guide slot 312 is T nature structure, the side of first board 31 is provided with T shaped block 311, T shaped block 311 is slid in guide slot 312, T shaped block 311 is provided with first bolt 313, and the free end of first bolt 313 is in abutment with guide slot 312.

[0035] Specifically, the first bolt 313 is loosened so that the t-shaped block slides in the guide slot 312. After adjusting the first board 31 to the appropriate position, the free end of the first bolt 313 is in abutment with the guide slot 312 to fixedly connect the bottom plate with the base 1. The relative position of the first board 31 and the base 1 is adjusted so that the test probe 41 is quickly adjusted above the test point position, and the adjustment efficiency is high.

[0036] In an embodiment of the utility model, the second adjusting part 6 includes a second plate 35 and a sleeve, the sleeve is sleeved on the second plate 35, the test head is provided with the sleeve, one end of the second plate 35 is provided with an adjusting cylinder 32, the adjusting cylinder 32 is sleeved on the first plate 31, the adjusting cylinder 32 is provided with a second bolt 33, the adjusting cylinder 32 is connected with the first plate 31 through the second bolt 33, and the second plate 35 and the first plate 31 are vertically arranged. The position of the test probe 41 in the spatial direction can be adjusted, different test point positions can be simulated according to different test requirements of different products, and the application range is wide.

[0037] In one embodiment of the utility model, the adjusting cylinder 32 is provided with a rotating hole, the second bolt 33 is arranged on the rotating hole through bearing, the first gear 37 is arranged on the free end of second bolt 33, the first rack 34 is arranged on the first plate 31, the first gear 37 is engaged with the first rack 34, and rotating the second bolt 33 makes the first gear 37 move along the first rack 34 to drive the adjusting cylinder 32 to move up and down along the first plate 31, which is convenient to use, the gear and rack structure can not only fine tune the position of test probe 41, but also form self-locking to ensure stable use without repeated clamping.

[0038] In one embodiment of the utility model, the sleeve is provided with a rotating rod 362, one end of the rotating rod 362 is provided with a second gear 361, the second plate 35 is provided with a second rack 36, the second gear 361 is engaged with the second rack 36, the rotating rod 362 is provided with a knob 363, and rotating the rotating rod 362 makes the second gear 361 move along the second rack 36 to drive the sleeve to move left and right along the second plate 35.

[0039] Specifically, rotating the rotating rod 362 makes the second gear 361 move along the second rack 36 to drive the sleeve to move left and right along the second plate 35, so that the sleeve on the second plate 35 moves to the test point of the resistor, the adjustment of test probe 41 in the left and right and up and down directions is realized, the stability of the mechanism is improved, the test accuracy and stability are greatly improved, and the error caused by manual operation to find the test point is avoided.

[0040] In one embodiment of the utility model, one side of the guide groove 312 is provided with a groove, and a scale is arranged on the groove; the side surfaces of the first plate 31 and the second plate 35 are provided with scale lines, and the scale lines are oppositely arranged with the adjusting cylinder 32 or the sleeve.

[0041] Specifically, the groove is provided with a scale, the moving position of the first plate 31 can be accurately adjusted, and the test point can be recorded subsequently; the side surfaces of the first plate 31 and the second plate 35 are provided with scale lines, and the scale lines are oppositely arranged with the adjusting cylinder 32 or the sleeve, the test probe 41 of the test position 24 can be accurately adjusted, and the error caused by manual operation to find the test point is avoided.

[0042] In one embodiment of the utility model, the test block 4 is provided with a mounting hole 43, an inner bolt 44 is arranged on the mounting hole 43, the mounting hole 43 is in communication with the probe hole 42, a measurement groove is arranged on the test probe 41, and the test probe 41 is connected with the test block 4 through the inner bolt 44.

[0043] Specific, loose inner bolt 44, and then the test probe 41 through the inner bolt 44 and the test block 4 is connected, so you can adjust the length of the test probe 41, so that it adapts to a variety of specifications of resistance testing, can be different from different products different test requirements to simulate different test points.

[0044] In an embodiment of the utility model, the junction of mounting hole 43 and probe hole 42 is provided with a spherical groove, the spherical groove is provided with a ball 45, the test probe 41 is arranged on the through hole of the ball 45, the probe hole 42 is a conical structure, the ball 45 is made of elastic material, and the inner bolt 44 is used to tightly press the ball 45 to deform and be clamped on the spherical groove.

[0045] Specific, loose inner bolt 44, so that the test probe 41 drives the ball 45 to rotate, so that the test probe 41 is rotated to the appropriate inclination angle, and since the ball 45 is made of elastic material, the inner bolt 44 is used to tightly press the ball 45 to deform and be clamped on the spherical groove, and the deformation of the ball 45 can clamp the test probe 41 in the through hole, thereby ensuring the stability of the test, quickly adjusting the height of the test probe 41 and the test angle of the test probe 41, so that the test probe 41 can be connected with the test points on the side of the resistor, thereby greatly improving the test accuracy and stability.

[0046] In an embodiment of the utility model, the positioning jig 2 includes a jig block 21, a plurality of positioning plates 22 are arranged on the jig block 21, and the plurality of positioning plates 22 are arranged to form a test position 24 for loading resistors.

[0047] Specific, a plurality of positioning plates 22 are arranged to form a test position 24 for loading resistors, thereby ensuring the positioning of the resistors, and the jig block 21 is provided with an air suction hole, which is connected with a vacuum generating device to adsorb the bottom surface of the resistor, thereby ensuring the positioning effect and improving the clamping stability.

[0048] In an embodiment of the utility model, a positioning hole is arranged on the inner side wall of the positioning plate 22, a spring plunger 23 is arranged in the positioning hole, and the spring plunger 23 is arranged opposite to the resistor.

[0049] Specific, the resistor is placed on the positioning jig 2, and the positioning jig 2 is fixed on the positioning station, the spring plunger 23 is arranged in the positioning hole, and the spring plunger 23 is arranged opposite to the resistor, so that the side surface of the resistor can be tightly pressed on the positioning jig 2 by the spring plunger 23, thereby clamping resistors of various specifications, and the application range is wide, and the spring plunger 23 can provide a certain clamping force, thereby ensuring that the resistor does not shake during the test process and ensuring the test stability of the test points.

[0050] Use process

[0051] Place the resistor on the positioning fixture 2, fix the positioning fixture 2 on the positioning station, adjust the positions of the four test probes 41 according to the test points on the resistor, that is, adjust the positions of each adjustment component 3, loosen the first bolt 313 to allow the T-shaped block to slide in the guide groove 312, and after adjusting the first plate 31 to a suitable position, the free end of the first bolt 313 abuts against the guide groove 312 to fix the bottom plate and the base 1, rotate the second bolt 33 to make the first gear 37 move along the first rack 34 to drive the adjustment cylinder 32 to move up and down along the first plate 31, so that the sleeve on the second plate 35 moves to a suitable height, and rotate the rotation to make the second gear 361 move along the second rack 36 to drive the sleeve along The second plate 35 moves left and right, so that the sleeve on the second plate 35 moves to the test point of the resistor, and the inner bolt 44 is loosened, so that the test probe 41 drives the ball 45 to rotate. After the test probe 41 rotates to a suitable tilt angle, since the ball 45 is made of elastic material, the inner bolt 44 presses the ball 45 tightly to deform it and get stuck on the spherical groove. At the same time, the deformation of the ball 45 will clamp the test probe 41 in the through hole to ensure the stability of the test. Through the above adjustment, it can simulate different test points according to different test requirements of different products, using the Kelvin connection method. At the same time, due to the mechanical stability, the test accuracy and stability are greatly improved, avoiding the errors caused by manual operation to find the test point.

[0052] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A test point simulation fixture with adjustable position, characterized in that: include: A base, on which a positioning station is provided, and the positioning station is provided with a positioning fixture for positioning the resistor; A testing mechanism is provided above the base, the testing mechanism includes four test heads, the test heads include a test block, the test block is provided with a probe hole, and the probe hole is provided with a test probe, and the four test heads are used to perform performance testing on the resistor on the positioning fixture; An adjustment mechanism is provided on the base, the adjustment mechanism includes four adjustment components, the four adjustment components are respectively provided on both sides of the base, the test heads are provided in a one-to-one correspondence with the adjustment components, and the test heads are connected to the adjustment components; In which, the adjustment component includes a first adjustment component and a second adjustment component, the first adjustment component is arranged on the base, and the first adjustment component and the second adjustment component are arranged perpendicular to each other, the test head is arranged on the second adjustment component, and the first adjustment component and the second adjustment component are used to drive the test probe on the test block to adjust to connect with the test point of the resistor.

2. The test point simulation fixture with adjustable position according to claim 1, characterized in that: The first adjusting component includes a first plate, a guide groove is opened on the side of the base, the cross-section of the guide groove is a T-shaped structure, a T-shaped block is provided on one side of the first plate, the T-shaped block is slidably arranged in the guide groove, and a first bolt is provided on the T-shaped block, and the free end of the first bolt abuts against the guide groove.

3. The test point simulation fixture with adjustable position according to claim 2, characterized in that: The second adjustment component includes a second plate and a sleeve, the sleeve is sleeved on the second plate, the test head is provided on the sleeve, an adjustment cylinder is provided at one end of the second plate, the adjustment cylinder is sleeved on the first plate, a second bolt is provided on the adjustment cylinder, the adjustment cylinder is connected to the first plate through the second bolt, and the second plate is arranged perpendicular to the first plate.

4. The test point simulation fixture with adjustable position according to claim 3, characterized in that: A rotating hole is provided on the adjusting cylinder, and the second bolt is rotated on the rotating hole through a bearing. A first gear is provided on the free end of the second bolt, and a first rack is provided on the first plate. The first gear is engaged with the first rack, and the second bolt is rotated to make the first gear move along the first rack to drive the adjusting cylinder to move up and down along the first plate.

5. The test point simulation fixture with adjustable position according to claim 3, characterized in that: A rotating rod is provided on the sleeve, a second gear is provided at one end of the rotating rod, a second rack is provided on the second plate, the second gear is engaged with the second rack, and a knob is provided on the rotating rod. Turning the knob causes the second gear to move along the second rack to drive the sleeve to move left and right along the second plate.

6. The test point simulation fixture with adjustable position according to claim 3, characterized in that: A groove is provided on one side of the guide groove, and a scale is provided on the groove; scale lines are provided on the sides of the first plate and the second plate, and the scale lines are arranged opposite to the adjustment cylinder or the sleeve.

7. The test point simulation fixture with adjustable position according to claim 1, characterized in that: The test block is provided with a mounting hole, the mounting hole is provided with an inner bolt, the mounting hole is communicated with the probe hole, the test probe is provided with a measuring groove, and the test probe is connected to the test block through the inner bolt.

8. The test point simulation fixture with adjustable position according to claim 7, characterized in that: A spherical groove is provided at the junction of the mounting hole and the probe hole, a sphere is provided on the spherical groove, the test probe is passed through the through hole of the sphere, the probe hole is a conical structure, the sphere is made of elastic material, and the inner bolt presses the sphere tightly so that it deforms and is stuck in the spherical groove.

9. The test point simulation fixture with adjustable position according to claim 1, characterized in that: The positioning jig includes a jig block, a plurality of positioning plates are provided on the jig block, and the plurality of positioning plates are arranged to form a test position for loading resistors. The jig block is provided with an air suction hole.

10. The test point simulation fixture with adjustable position according to claim 9, characterized in that: A positioning hole is provided on the inner side wall of the positioning plate. A spring plunger is provided in the positioning hole. The spring plunger is arranged opposite to the resistor.

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