Positioning clamp for testing temperature sensor

Abstract

The invention discloses a positioning clamp for testing a temperature sensor, and the positioning clamp comprises a tool loading plate, a fixed seat, a first clamping plate, a second clamping plate, a limiting seat, and a third clamping plate. A group of first clamping plates, a group of second clamping plates and a group of third clamping plates are correspondingly arranged in three clamping plate placing holes which are regularly and symmetrically distributed in the tool loading plate to form a temperature sensor concentrated clamping area. The device has the advantages that the temperature sensors are clamped and fixed in sequence through the multiple clamping plates, the position of each temperature sensor can be accurate, electric contact detection can be conveniently carried out on electric connection end pieces of the temperature sensors, the use convenience is improved, and the detection and positioning difficulty is effectively reduced; the positioning fixture can adjust the position of the corresponding temperature sensor, can be quickly adjusted according to different types of temperature sensors, is wide in application range, is simple and quick in adjustment, and improves the testing and detecting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of temperature sensor test application, in particular to a positioning fixture for temperature sensor test. Background Art

[0002] A temperature sensor is a sensor that converts temperature variables into a transmittable standardized output signal. Temperature sensors can be divided into two categories according to the measurement method: contact and non-contact. They can be divided into two categories: thermal resistors and thermocouples according to the sensor materials and electronic component characteristics. They are mostly used in temperature detection, testing, display, temperature control, overheating protection and other fields.

[0003] The existing temperature sensor test fixture has insufficient clamping and positioning accuracy, which cannot ensure the accuracy of contact between the test equipment and the electrical contacts of the temperature sensor. There are few clamping stations, large dispersion, and a long time for detection and adjustment, resulting in low test efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a positioning fixture for testing a temperature sensor in order to solve the above-mentioned problem.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a positioning fixture for testing a temperature sensor, comprising a work loading plate, a fixing seat, a first clamping plate, a second clamping plate, a limiting seat and a third clamping plate, two sliding grooves are alternately arranged at both ends of the upper surface of the work loading plate, the sliding block located inside the sliding groove is fixedly connected to the bottom end of the first clamping plate, the fixing seats located on both sides of the upper surface of the work loading plate are connected with first screws through screw holes, the second screws and the bidirectional lead screws are rotatably connected to the two sides and the middle of the lower surface of the work loading plate, the end of the first screw contacts the first clamping plate, the second screw is threadedly connected to the second clamping plate, the bidirectional lead screw is threadedly connected to the movable plate, the top of the movable plate is fixedly connected to the limiting seat, the middle of the work loading plate is rotatably connected to the third clamping plate, the bottom end of the first clamping plate is fixedly connected to the second spring, and a temperature sensor centralized clamping area is formed by arranging a corresponding group of first clamping plates, a group of second clamping plates and a group of third clamping plates in three types of clamping plate placement holes regularly and symmetrically distributed on the work loading plate, respectively, and the outer ends of the first screw, the second screw and the bidirectional lead screw are not limited to manual drive, but can also be equipped with corresponding motors.

[0006] Preferably, the first clamping plate, the second clamping plate, the limiting seat and the side wall of the third clamping plate are all fixedly connected with a buffer pad.

[0007] Preferably, the surface of the work loading plate is slidably connected to the first clamping plates, the number of the first clamping plates is two, the cross-sections of the two first clamping plates are both L-shaped structures and are symmetrically distributed on both sides of the work loading plate.

[0008] Preferably, the first screw and the second screw are respectively located on both sides of the work loading plate, and the interior of the work loading plate is slidably connected to the second clamping plate.

[0009] Preferably, a temperature sensor is provided between the second clamping plate and the first clamping plate.

[0010] Preferably, the limit seat is engaged with the temperature sensor, and the temperature sensor is fixedly connected to the electrical terminal of the device.

[0011] Preferably, two bidirectional lead screws are symmetrically distributed at the bottom of the work loading plate, the spiral directions of the two ends of the bidirectional lead screw are opposite, and the two bidirectional lead screws are both located between the second screw rod.

[0012] Preferably, two movable plates are connected to both ends of the bidirectional lead screw, and a limit seat with a U-shaped structure is provided on the surface of each movable plate.

[0013] Preferably, two third clamping plates are provided in the middle of the tool loading plate, and the bottom ends of the two third clamping plates are respectively connected to the second springs.

[0014] Compared with the existing technology, the difference lies in: by adopting multiple clamps to clamp and fix the temperature sensors in sequence, the position of each temperature sensor can be accurately achieved, and the electrical contact detection of the electrical terminal of the device can be conveniently realized, which is conducive to improving the convenience of use and effectively reducing the difficulty of detection and positioning; the position of the corresponding temperature sensor can be adjusted, and it can be quickly adjusted according to different types of temperature sensors. The positioning fixture has a wide range of applications and is simple and fast to adjust, which improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 A top view of the overall structure of the present invention; Figure 3 It is a side sectional view of the overall structure of the present invention.

[0017] In the figure: 1, work loading plate, 2, fixed seat, 3, slide groove, 4, slider, 5, first clamping plate, 6, first screw, 7, first spring, 8, second screw, 9, second clamping plate, 10, bidirectional screw, 11, movable plate, 12, limit seat, 13, third clamping plate, 14, second spring, 15, buffer pad, 16, temperature sensor, 17, device electrical terminal. DETAILED DESCRIPTION

[0018] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0020] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] See also Figure 1-3 As shown, a positioning fixture for testing a temperature sensor comprises a work loading plate 1, a fixing seat 2, a first clamping plate 5, a second clamping plate 9, a limiting seat 12 and a third clamping plate 13. Two slide grooves 3 are alternately provided at both ends of the upper surface of the work loading plate 1. The fixing seats 2 located on both sides of the upper surface of the work loading plate 1 are connected with first screw rods 6 through screw holes. The second screws 8 and the bidirectional lead screw 10 are rotatably connected at both sides and the middle of the lower surface of the work loading plate 1. The end of the first screw 6 contacts the first clamping plate 5, the second screw 8 is threadedly connected to the second clamping plate 9, and the bidirectional lead screw 10 is connected to the second clamping plate 9. 0 is threadedly connected to the movable plate 11, the top of the movable plate 11 is fixedly connected to the limit seat 12, the middle of the work loading plate 1 is rotatably connected to the third clamping plate 13, the bottom end of the first clamping plate 5 is fixedly connected to the second spring 14, and the three clamping plate placement holes regularly and symmetrically distributed on the work loading plate 1 are respectively arranged by arranging a corresponding group of first clamping plates 5, a group of second clamping plates 9 and a group of third clamping plates 13 to form a centralized clamping area for the temperature sensor 16, the outer ends of the first screw 6, the second screw 8 and the bidirectional lead screw 10 are not limited to manual drive, and corresponding motors can also be installed and connected.

[0022] Combination Figure 2 and Figure 3 As shown, the side walls of the first clamping plate 5, the second clamping plate 9, the limiting seat 12 and the third clamping plate 13 are all fixedly connected with a buffer pad 15 to enhance the protection of the surface of the clamping piece.

[0023] like Figure 3 As shown, the slider 4 located inside the slide groove 3 is fixedly connected to the bottom end of the first clamping plate 5, the surface of the work loading plate 1 is slidably connected to the first clamping plate 5, the number of the first clamping plates 5 is two, the cross-sections of the two first clamping plates 5 are L-shaped structures and are symmetrically distributed on both sides of the work loading plate 1, the first screw 6 and the second screw 8 are respectively located on both sides of the work loading plate 1, and the interior of the work loading plate 1 is slidably connected to the second clamping plate 9, which ensures the stability of the movement of the first clamping plate 5 and the second clamping plate 9.

[0024] Furthermore, a temperature sensor 16 is provided between the second clamping plate 9 and the first clamping plate 5 , the limit seat 12 is engaged with the temperature sensor 16 , and the temperature sensor 16 is fixedly connected to the device electrical terminal 17 .

[0025] Furthermore, two bidirectional lead screws 10 are symmetrically distributed at the bottom of the loading plate 1 , the spiral directions of the two ends of the bidirectional lead screw 10 are opposite, and the two bidirectional lead screws 10 are both located between the second screw rods 8 .

[0026] Furthermore, two movable plates 11 are connected to both ends of the bidirectional lead screw 10 , and a limiting seat 12 with a U-shaped structure is provided on the surface of each movable plate 11 .

[0027] Furthermore, two third clamping plates 13 are provided in the middle of the tool loading plate 1 , and the bottom ends of the two third clamping plates 13 are respectively connected to the second springs 14 .

[0028] When the present invention is in use, the corresponding temperature sensor 16 is placed on the work loading plate 1, and the elasticity of the second spring 14 pushes the two third clamping plates 13 to rotate around the work loading plate 1 to clamp and fix one of the temperature sensors 16 located in the middle, and uses this temperature sensor 16 as the positioning center, and then places the temperature sensor 16 on the limit seat 12, and by rotating the bidirectional lead screw 10, it drives the limit seats 12 on both sides to move, and drives the four temperature sensors 16 on both sides to move, and can adjust the position according to the length of the center temperature sensor 16. When the operation is completed, the last two temperature sensors 16 are placed between the first clamping plate 5 and the second clamping plate 9, and By rotating the first screw 6, the end of the first screw 6 contacts the first clamping plate 5 and pushes it to move toward the center. At this time, the first spring 7 is in a stretched state. After adjusting the position of the first clamping plate 5, the second screw 8 is rotated to drive the second clamping plate 9 to move to both sides, so that the second clamping plate 9 and the first clamping plate 5 cooperate to achieve the clamping and positioning of the temperature sensor 16, ensuring its stability during the clamping process. Buffer pads 15 are provided on the surfaces of the first clamping plate 5, the second clamping plate 9, the limit seat 12 and the third clamping plate 13, which can protect the temperature sensor 16. After each temperature sensor 16 is clamped and positioned, the test contact point of the test equipment is tested at the device electrical terminal 17.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioning fixture for testing a temperature sensor, characterized in that: The invention comprises a work loading plate (1), a fixing seat (2), a first clamping plate (5), a second clamping plate (9), a limiting seat (12) and a third clamping plate (13), wherein two slide grooves (3) are alternately arranged at both ends of the upper surface of the work loading plate (1), a sliding block (4) located inside the slide groove (3) is fixedly connected to the bottom end of the first clamping plate (5), the fixing seats (2) located on both sides of the upper surface of the work loading plate (1) are connected to first screw rods (6) through screw holes, and the second screw rods (8) and a bidirectional lead screw (10) are rotatably connected to the two sides and the middle of the lower surface of the work loading plate (1), the end of the first screw rod (6) contacts the first clamping plate (5), and the second screw rod (8) is threadedly connected to the second clamping plate (9). The bidirectional lead screw (10) is threadedly connected to the movable plate (11), the top of the movable plate (11) is fixedly connected to the limit seat (12), the middle of the work loading plate (1) is rotatably connected to the third clamping plate (13), the bottom end of the first clamping plate (5) is fixedly connected to the second spring (14), and a temperature sensor (16) centralized clamping area is formed by arranging corresponding groups of first clamping plates (5), second clamping plates (9) and third clamping plates (13) in three types of clamping plate placement holes regularly and symmetrically distributed on the work loading plate (1). The outer ends of the first screw (6), the second screw (8) and the bidirectional lead screw (10) are not limited to manual drive, but can also be equipped with corresponding motors.

2. A positioning fixture for testing a temperature sensor according to claim 1, characterized in that: The first clamping plate (5), the second clamping plate (9), the limiting seat (12) and the side walls of the third clamping plate (13) are all fixedly connected with a buffer pad (15).

3. A positioning fixture for testing a temperature sensor according to claim 1, characterized in that: The surface of the work loading plate (1) is slidably connected to the first clamping plates (5), the number of the first clamping plates (5) is two, the cross-sections of the two first clamping plates (5) are both L-shaped structures and are symmetrically distributed on both sides of the work loading plate (1).

4. A positioning fixture for testing a temperature sensor according to claim 1, characterized in that: The first screw rod (6) and the second screw rod (8) are respectively located on both sides of the work loading plate (1), and the interior of the work loading plate (1) is slidably connected to the second clamping plate (9).

5. A positioning fixture for testing a temperature sensor according to claim 1, characterized in that: A temperature sensor (16) is provided between the second clamping plate (9) and the first clamping plate (5).

6. A positioning fixture for testing a temperature sensor according to claim 1, characterized in that: The limit seat (12) is engaged with the temperature sensor (16), and the temperature sensor (16) is fixedly connected to the device electrical terminal (17).

7. A positioning fixture for testing a temperature sensor according to claim 1, characterized in that: Two bidirectional lead screws (10) are symmetrically distributed at the bottom of the work loading plate (1), the spiral directions of the two ends of the bidirectional lead screw (10) are opposite, and the two bidirectional lead screws (10) are both located between the second screw rods (8).

8. A positioning fixture for testing a temperature sensor according to claim 1, characterized in that: Two movable plates (11) are connected to both ends of the bidirectional lead screw (10), and a limit seat (12) of a U-shaped structure is provided on the surface of each movable plate (11).

9. A positioning fixture for testing a temperature sensor according to claim 1, characterized in that: Two third clamping plates (13) are provided in the middle of the tool loading plate (1), and the bottom ends of the two third clamping plates (13) are respectively connected to the second springs (14).

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