A measuring tool for contact resistance of inclined coil spring

Abstract

The utility model discloses a kind of measuring tool of oblique coil spring contact resistance, including fixed support, screw rod, movable plate, upper contact plate and lower contact plate, the fixed support is made of bottom plate, top plate and several parallel optical axes fixed between bottom plate and top plate, one of which is provided with grating ruler on optical axis, the top plate center is equipped with screw rod nut;The screw rod passes through the screw rod nut and is parallel with the optical axis, and screw rod top end is equipped with handle;The movable plate is cooperated with several guide holes of the optical axis, and optical axis is installed in guide hole, bearing is embedded in movable plate lower center, and the bearing is connected with the lower end of screw rod;The upper contact plate is arranged in the movable plate lower surface, and the lower contact plate is arranged on the bottom plate upper surface.The utility model can measure the surface resistance of oblique coil spring at the same time, conveniently, in real time, accurately adjust the axial compression amount of oblique coil spring, to measure the surface resistance of different compression amount of oblique coil spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooling technical field, concretely is a kind of measuring tooling of oblique coil spring contact resistance. BACKGROUND

[0002] Oblique coil spring is widely used in aerospace, power system, sealing system and other fields, and its performance directly affects its application effect, therefore, it has strong theoretical and practical significance to study the performance characteristics of oblique coil spring, including studying the surface resistance variation of different axial compression amount of oblique coil spring.

[0003] Due to the unique structural characteristics and mechanical properties of oblique coil spring, it is difficult to conveniently and accurately measure the surface resistance of different compression amount of oblique coil spring without the help of measuring tooling. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of measuring tooling of oblique coil spring contact resistance to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of measuring tooling of oblique coil spring contact resistance, including fixed support, screw rod, movable plate, upper contact plate and lower contact plate, the fixed support is composed of bottom plate, top plate and several parallel optical axes fixed between bottom plate and top plate, one of the optical axes is provided with grating ruler, the top plate center is equipped with screw rod nut;The screw rod passes through the screw rod nut and is parallel to the optical axis, and the screw rod top end is equipped with handle;The movable plate is equipped with several guide holes in cooperation with the optical axis, and the optical axis is installed in guide hole, bearing is embedded in the center of movable plate lower side, and the bearing is connected with the lower end of screw rod;The upper contact plate is arranged on the lower surface of the movable plate, and the lower contact plate is arranged on the upper surface of the bottom plate, and the upper contact plate and the movable plate and the lower contact plate and the bottom plate are not conductive.

[0006] Preferably, the upper contact plate and the lower contact plate are both high-conductivity materials.

[0007] Preferably, the lower surface of the upper contact plate is provided with a boss, and the side surface of the upper contact plate is provided with a conductive terminal A.

[0008] Preferably, the upper surface of the lower contact plate is provided with a sink, and the inner wall of the sink is provided with an insulating material A, and the inner circle size and position of the insulating material A match the boss;The side surface of the lower contact plate is provided with a conductive terminal B.

[0009] Preferably, the bottom plate and the lower contact plate, the movable plate and the upper contact plate are both provided with insulating material B.

[0010] Compared with the prior art, the utility model discloses the beneficial effects are:

[0011] Can be in the measurement inclined coil spring surface resistance, convenient, real -time, accurately adjust inclined coil spring's axial compression amount, and the surface resistance of different compression amount of inclined coil spring is measured, simple structure, low in cost. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The utility model discloses bottom plate and movable board are all the cross section structure schematic diagram of conductive material,

[0013] Figure 2 The utility model discloses bottom plate and movable board are all the cross section structure schematic diagram of insulating material,

[0014] Figure 3 The utility model discloses the cross section structure schematic diagram of support,

[0015] Figure 4 The utility model discloses movable board structure schematic diagram,

[0016] Figure 5 The utility model discloses upper contact plate structure schematic diagram,

[0017] Figure 6 The utility model discloses lower contact plate structure schematic diagram.

[0018] In the drawing: 1, support, 101, bottom plate, 102, top plate, 103, optical axis, 104, grating ruler, 105, screw nut, 2, screw, 201, handle, 3, movable board, 301, guide hole, 302, bearing, 4, upper contact plate, 401, boss, 402, conductive terminal A, 5, lower contact plate, 501, sink groove, 502, conductive terminal B, 6, insulating material A, 7, insulating material B, 8, inclined coil spring. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0020] Embodiment 1

[0021] Please refer to Figure 1 、 3-6, The utility model provides a technical scheme: a measuring frock of oblique coil spring contact resistance, including fixed support 1, screw rod 2, movable plate 3, upper contact plate 4 and lower contact plate 5, fixed support 1 is by bottom plate 101, top plate 102 and the several parallel optical axis 103 of being fixed between bottom plate 101 and top plate 102 are composed, wherein one optical axis 103 is provided with grating ruler 104, and the centre of top plate 102 is equipped with screw rod nut 105, the screw rod 2 passes through screw rod nut 105 and is parallel with optical axis 103, and the top end of screw rod 2 is equipped with handle 201, movable plate 3 is opened with several guide holes 301 in cooperation with optical axis 103, and optical axis 103 is installed in guide hole 301, and the centre of movable plate 3 below is embedded with bearing 302, and bearing 302 is connected with the lower end of screw rod 2, upper contact plate 4 is arranged on the lower surface of movable plate 3, and lower contact plate 5 is arranged on the upper surface of bottom plate 101, and upper contact plate 4 and movable plate 3 and between lower contact plate 5 and bottom plate 101 are not conductive.

[0022] In the utility model, the upper contact plate 4 and the lower contact plate 5 are both made of high-conductivity material, such as copper or aluminum.

[0023] In the utility model, the lower surface of the upper contact plate 4 is provided with a boss 401, and the side surface of the upper contact plate 4 is provided with a conductive terminal A 402.

[0024] In the utility model, the upper surface of the lower contact plate 5 is provided with a sink 501, and the inner wall of the sink 501 is provided with an insulating material A 6, the inner circle size and position of the insulating material A 6 are matched with the boss 401; the side surface of the lower contact plate 5 is provided with a conductive terminal B 502.

[0025] Referring to Figure 1 , the bottom plate 101 and the movable plate 3 are both made of conductive material, and the insulating material B 7 is arranged between the bottom plate 101 and the lower contact plate 5 and between the movable plate 3 and the upper contact plate 4.

[0026] Embodiment 2

[0027] Please refer to Figures 2-6The utility model provides a technical scheme: a kind of oblique coil spring contact resistance measuring tool, including fixed support 1, screw rod 2, movable plate 3, upper contact plate 4 and lower contact plate 5, fixed support 1 is made of bottom plate 101, top plate 102 and several parallel optical axes 103 fixed between bottom plate 101 and top plate 102, one of optical axis 103 is provided with grating ruler 104, and top plate 102 center is equipped with screw rod nut 105;Screw rod 2 passes through screw rod nut 105 and is parallel with optical axis 103, and screw rod 2 top end is equipped with handle 201;Movable plate 3 is equipped with several guide holes 301 in cooperation with optical axis 103, and optical axis 103 is installed in guide hole 301, and bearing 302 is embedded in the center of movable plate 3 below, and bearing 302 is connected with the lower end of screw rod 2;Upper contact plate 4 is arranged on the lower surface of movable plate 3, and lower contact plate 5 is arranged on the upper surface of bottom plate 101, and upper contact plate 4 and movable plate 3 and lower contact plate 5 and bottom plate 101 between are not conductive.

[0028] In the utility model, upper contact plate 4 and lower contact plate 5 are both high-conductivity materials, for example, copper or aluminum.

[0029] In the utility model, the lower surface of upper contact plate 4 is provided with a boss 401, and the side surface of upper contact plate 4 is provided with a conductive terminal A 402.

[0030] In the utility model, the upper surface of lower contact plate 5 is provided with a sink 501, the inner wall of the sink 501 is provided with an insulating material A6, the inner ring size and position of the insulating material A6 match the boss 401, and the side surface of lower contact plate 5 is provided with a conductive terminal B 502.

[0031] Referring to Figure 2 , bottom plate 101 and movable plate 3 are both insulating materials.

[0032] The utility model: oblique coil spring 8 is placed in the sink 501 of lower contact plate 5, then handle 201 is rotated, handle 201 drives movable plate 3 to move downwards, movable plate 3 drives upper contact plate 4 to move downwards, contact plate 4 drives boss 401 to move into the sink 501, so as to achieve the purpose of controlling the axial compression amount of oblique coil spring, electricity is passed on conductive terminal A 402 and conductive terminal B 502, different axial compression amounts of oblique coil spring are controlled, so as to measure the surface resistance of oblique coil spring with different compression amounts, the utility model can conveniently, real-timely and accurately adjust the axial compression amount of oblique coil spring while measuring the surface resistance of oblique coil spring, so as to measure the surface resistance of oblique coil spring with different compression amounts.

[0033] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for measuring the contact resistance of a slanted coil spring, characterized in that: The system includes a fixed bracket (1), a lead screw (2), a movable plate (3), an upper contact plate (4), and a lower contact plate (5). The fixed bracket (1) consists of a base plate (101), a top plate (102), and several parallel optical axes (103) fixed between the base plate (101) and the top plate (102). A grating ruler (104) is provided on one of the optical axes (103). A lead screw nut (105) is provided at the center of the top plate (102). The lead screw (2) passes through the lead screw nut (105) and is parallel to the optical axis (103). A handle is provided at the top of the lead screw (2). 201); The movable plate (3) is provided with several guide holes (301) in cooperation with the optical axis (103), and the optical axis (103) is installed in the guide holes (301). A bearing (302) is embedded in the center of the lower part of the movable plate (3), and the bearing (302) is connected to the lower end of the lead screw (2); the upper contact plate (4) is provided on the lower surface of the movable plate (3), and the lower contact plate (5) is provided on the upper surface of the base plate (101). The upper contact plate (4) and the movable plate (3) and the lower contact plate (5) and the base plate (101) are not conductive.

2. The measuring fixture for the contact resistance of a slanted coil spring according to claim 1, characterized in that: Both the upper contact plate (4) and the lower contact plate (5) are made of highly conductive materials.

3. The measuring fixture for the contact resistance of a slanted coil spring according to claim 1, characterized in that: The upper contact plate (4) has a boss (401) on its lower surface and a conductive terminal A (402) on its side.

4. The measuring fixture for the contact resistance of a slanted coil spring according to claim 3, characterized in that: The upper surface of the lower contact plate (5) is provided with a groove (501), and the inner wall of the groove (501) is provided with an insulating material A (6). The inner circle size and position of the insulating material A (6) match the boss (401); the side of the lower contact plate (5) is provided with a conductive terminal B (502).

5. The measuring fixture for the contact resistance of a slanted coil spring according to claim 1, characterized in that: Insulating material B (7) is provided between the base plate (101) and the lower contact plate (5), and between the movable plate (3) and the upper contact plate (4).

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