Jig for sensor detection

Abstract

The invention relates to the technical field of sensor detection, in particular to a sensor detection jig which comprises a base, a bearing plate, a positioning sleeve, a datum plate, a testing assembly and a jacking assembly, the base is a cuboid, a groove is formed in the upper portion of the base and extends in the length direction of the base, the bearing plate is placed at the bottom of the groove, and the positioning sleeve is arranged on the bearing plate. The positioning sleeves are installed at the top end of the bearing plate, the multiple positioning sleeves are evenly arranged in the length direction of the bearing plate, a first through hole is formed in the bottom end of the bearing plate, a second through hole is formed in the lower portion of the base and communicates with the positioning sleeves through the first through hole, the datum plate is arranged above the base, and the datum plate is arranged on the base. A mounting groove is formed in the bottom end of the base, the testing assembly is mounted in the middle of the groove bottom of the mounting groove, and the jacking assembly is arranged below the base; the device is simple in structural design and high in automation degree, it is guaranteed that the probes and the pins are accurately aligned in the testing process, and batch testing can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor detection, and in particular to a sensor detection jig. Background Art

[0002] The automobile pressure sensor comprises a plastic connector 1, a hexagonal metal 2 and a pin 3, wherein the pin 3 is arranged in the plastic connector 1. Figure 1 and Figure 2 As shown. During the production and processing of automotive pressure sensors, air tightness tests and current and voltage tests are required. At present, the above tests are generally performed manually, which mainly involves manually placing the products one by one on a fixed fixture for positioning, and then performing manual tests. After the test, the tested products are manually removed for the next round of testing, which is time-consuming and labor-intensive, and cannot achieve batch and automated testing. In addition, during the manual test process, there may be deviations in the alignment of the probe and the pin (for example, no alignment or alignment without contact), resulting in inaccurate test results. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a sensor detection fixture which has a simple structural design, a high degree of automation, ensures precise alignment of the probe and the pin during the test, and can realize batch testing.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a sensor detection fixture, including a base, a bearing plate, a positioning sleeve, a reference plate, a test assembly and a lifting assembly, the base is a rectangular parallelepiped, and a groove is opened on the upper part thereof, and the groove extends along the length direction of the base, the bearing plate is placed on the bottom of the groove, the positioning sleeve is installed on the top of the bearing plate, and there are several positioning sleeves, which are evenly arranged along the length direction of the bearing plate, a first through hole is opened at the bottom end of the bearing plate, a second through hole is opened at the lower part of the base, and the second through hole is connected with the positioning sleeve through the first through hole, the reference plate is arranged above the base, and a mounting groove is opened at the bottom end thereof, the test assembly is installed in the middle of the bottom of the mounting groove, and the lifting assembly is arranged below the base.

[0005] Furthermore, the positioning sleeve is hexagonal and matches the hexagonal metal of the sensor.

[0006] Furthermore, the test assembly includes a receptacle and a probe, the receptacle is installed in the middle of the bottom of the installation slot, and there are a plurality of probes, which are installed on the receptacle.

[0007] Furthermore, the test assembly also includes a plurality of guide ribs, which are arranged circumferentially along the bottom of the receptacle.

[0008] Furthermore, the bottom of the side surface of the guide rib away from the receiving seat is an inclined surface.

[0009] Furthermore, the lifting assembly includes a lift rod and a driving member, wherein the lift rod is arranged below the base and is driven to rise and fall by the driving member.

[0010] Furthermore, a transport column is installed on the top of the carrying plate, and avoidance gaps are respectively provided on the left and right ends of the top of the positioning sleeve.

[0011] Furthermore, a positioning pin is installed at the bottom of the groove, and a positioning hole corresponding to the positioning pin is opened on the bearing plate.

[0012] Furthermore, rollers are respectively installed at the four corners of the top of the base.

[0013] Furthermore, pads are installed on the left and right parts of the bottom end of the base respectively, and a third through hole corresponding to the second through hole is opened on the pad.

[0014] The beneficial effects of the present invention are:

[0015] (1) The present invention evenly arranges a plurality of positioning sleeves in the groove, so that one fixture can hold multiple products to achieve batch testing. At the same time, the coordination of the reference plate, the test assembly and the lifting assembly enables automatic testing.

[0016] (2) The positioning sleeve of the present invention is designed to be hexagonal and is compatible with the hexagonal metal of the sensor, so as to position the product during the lifting process and ensure the precise alignment of the probe and the product pin during the test.

[0017] (3) The provision of the guide ribs in the present invention provides secondary positioning for the product during the lifting process, further ensuring the precise alignment of the probe and the product pins during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the structure of the automobile pressure sensor;

[0020] Figure 2 It is a top view of the automotive pressure sensor;

[0021] Figure 3 It is a partial cross-sectional view of the present invention during testing;

[0022] Figure 4 is a schematic diagram of a base in the present invention;

[0023] Figure 5 is a cross-sectional view of the base in the present invention;

[0024] Figure 6 is a top view of the base in the present invention;

[0025] Figure 7 It is a schematic diagram of avoiding the gap in the present invention;

[0026] Figure 8 is a schematic diagram of a positioning pin in the present invention;

[0027] Fig. 9 It is a schematic diagram of the guide rib in the present invention.

[0028] In the figure: 100, base; 110, groove; 120, second through hole; 200, bearing plate; 210, first through hole; 220, positioning hole; 300, positioning sleeve; 310, avoidance gap; 400, reference plate; 410, mounting groove; 500, test assembly; 510, receptacle; 520, probe; 530, guide rib; 600, lifting assembly; 610, ejector rod; 700, transport column; 800, positioning pin; 900, roller; 1000, pad; 1010, third through hole. DETAILED DESCRIPTION

[0029] The present invention will now be further described in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0030] like Figure 3-Figure 7 As shown, a sensor detection fixture includes a base 100, a bearing plate 200, a positioning sleeve 300, a reference plate 400, a test assembly 500 and a lifting assembly 600. The base 100 is a rectangular parallelepiped, and a groove 110 is opened on the upper part thereof, and the groove 110 extends along the length direction of the base 100. The bearing plate 200 is placed on the bottom of the groove 110. The positioning sleeve 300 is installed on the top of the bearing plate 200. There are several positioning sleeves 300, which are evenly arranged along the length direction of the bearing plate 200. A first through hole 210 is opened at the bottom end of the bearing plate 200, and a second through hole 120 is opened at the lower part of the base 100. The second through hole 120 is connected with the positioning sleeve 300 through the first through hole 210. The reference plate 400 is arranged above the base 100, and a mounting groove 410 is opened at the bottom end thereof. The test assembly 500 is installed in the middle of the bottom of the mounting groove 410, and the lifting assembly 600 is arranged below the base 100. A plurality of positioning sleeves 300 are evenly arranged in the groove 110, so that a fixture can place multiple products to achieve batch testing, and the reference plate 400, the test assembly 500 and the lifting assembly 600 are arranged in coordination to achieve automatic testing. Specifically, there can be six positioning sleeves 300, but not limited to six; the notch of the installation groove 410 is horn-shaped.

[0031] like Figure 3 and Figure 6As shown, the positioning sleeve 300 is hexagonal and matches the hexagonal metal of the sensor. The positioning sleeve 300 is designed to be hexagonal and matches the hexagonal metal of the sensor to position the product during the lifting process, ensuring the precise alignment of the probe 520 and the product pin during the test. It should be noted that during the lifting process, the hexagonal metal of the sensor will not exceed the positioning sleeve 300.

[0032] like Figure 3 As shown, the test assembly 500 includes a receptacle 510 and a probe 520. The receptacle 510 is installed in the middle of the bottom of the installation groove 410. There are a plurality of probes 520 installed on the receptacle 510. Specifically, the receptacle 510 is made of polyetheretherketone (PEEK) material, which can be used in high and low temperature environments and is relatively wear-resistant; the probe 520 is connected to the tester.

[0033] like Fig. 9 As shown, the test assembly 500 also includes a plurality of guide ribs 530, which are arranged along the bottom circumference of the receptacle 510. The setting of the guide ribs 530 performs secondary positioning on the product during the lifting process, further ensuring the precise alignment of the probe 520 with the product pin during the test. Specifically, the bottom of the side of the guide rib 530 away from the receptacle 510 is an inclined surface. After the top of the product enters the mounting groove 410 and the product continues to rise, the guide ribs 530 contact the inner wall of the product for guidance.

[0034] like Figure 3 As shown, the lifting assembly 600 includes a push rod 610 and a driving member. The push rod 610 is arranged below the base 100 and is driven to rise and fall by the driving member. Specifically, the driving member can be a cylinder. During the test, the driving member drives the push rod 610 to rise, and the top of the push rod 610 passes through the second through hole 120 and the first through hole 210 in sequence to lift the product until the hexagonal metal of the product conflicts with the notch of the installation groove 410, and the driving member stops driving to perform the test.

[0035] like Figure 4 As shown, a transport column 700 is installed at the top of the carrier plate 200, and avoidance notches 310 are respectively provided at the left and right ends of the top of the positioning sleeve 300. The transport column 700 is provided so that after the product test is completed, the gripper (not shown in the figure) moves the carrier plate 200 and the positioning sleeve 300 out of the groove 110 as a whole through the transport column 700 to carry out the next test. The avoidance notch 310 is provided so that the gripper can avoid the gripper when carrying the product. Specifically, the gripper is a prior art.

[0036] like Figure 7 and Figure 8 As shown, in order to ensure that the bearing plate 200 is correctly positioned in the groove 110 , a positioning pin 800 is installed at the bottom of the groove 110 , and a positioning hole 220 corresponding to the positioning pin 800 is opened on the bearing plate 200 .

[0037] like Figure 4 As shown, rollers 900 are respectively installed at the four corners of the top of the base 100. The arrangement of the rollers 900 guides the base 100 and reduces friction when the wire (not shown) drives the base 100 to flow. Specifically, the wire is a prior art.

[0038] like Figure 4 As shown, the left and right parts of the bottom end of the base 100 are respectively installed with pads 1000 , and the pads 1000 are provided with third through holes 1010 corresponding to the second through holes 120 .

[0039] During the test, the products are placed in the positioning sleeve 300 on the carrier plate 200, and the base 100 is driven by the line body to rotate. After the rotation is in place, the ejector 610 lifts up all the products until the hexagonal metal of the product contacts the notch of the installation groove 410. At this time, the probe 520 is precisely aligned with the pin to ensure full contact without overpressure, and then the test is carried out. After the test, the gripper moves the carrier plate 200 and the positioning sleeve 300 out of the groove 110 as a whole through the transport column 700 to carry out the next test. Of course, during the test, the ejector 610 can also be used to lift up the products one by one and test them one by one.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A sensor detection jig, characterized in that: The invention comprises a base (100), a bearing plate (200), a positioning sleeve (300), a reference plate (400), a test assembly (500) and a lifting assembly (600), wherein the base (100) is a rectangular parallelepiped and a groove (110) is provided on the upper part thereof, wherein the groove (110) extends along the length direction of the base (100), the bearing plate (200) is placed on the bottom of the groove (110), the positioning sleeve (300) is installed on the top of the bearing plate (200), and the positioning sleeve (300) is a plurality of positioning sleeves (300) extending along the length direction of the bearing plate (200). The support plate (200) and the support plate (100) are evenly arranged in the same direction, a first through hole (210) is provided at the bottom end of the support plate (200), a second through hole (120) is provided at the lower part of the base (100), the second through hole (120) is connected with the positioning sleeve (300) through the first through hole (210), the reference plate (400) is arranged above the base (100), and a mounting groove (410) is provided at the bottom end thereof, the test assembly (500) is installed in the middle of the bottom of the mounting groove (410), and the lifting assembly (600) is arranged below the base (100).

2. The sensor detection jig according to claim 1, characterized in that: The positioning sleeve (300) is hexagonal and matches the hexagonal metal of the sensor.

3. The sensor detection jig according to claim 1, characterized in that: The test assembly (500) comprises a receptacle (510) and a probe (520), wherein the receptacle (510) is installed at the middle of the bottom of the installation groove (410), and the probe (520) is in the form of a plurality of probes, which are installed on the receptacle (510).

4. The sensor detection jig according to claim 3, characterized in that: The test assembly (500) further comprises a plurality of guide ribs (530), which are arranged along the circumference of the bottom of the receiving seat (510).

5. The sensor detection jig according to claim 4, characterized in that: The bottom of the side surface of the guide rib (530) away from the receiving seat (510) is an inclined surface.

6. The sensor detection jig according to claim 1, characterized in that: The lifting assembly (600) comprises a lifting rod (610) and a driving member. The lifting rod (610) is arranged below the base (100) and is driven to rise and fall by the driving member.

7. The sensor detection jig according to claim 1, characterized in that: A transport column (700) is installed at the top of the carrying plate (200), and avoidance notches (310) are respectively provided at the left and right ends of the top of the positioning sleeve (300).

8. The sensor detection jig according to claim 1, characterized in that: A positioning pin (800) is installed at the bottom of the groove (110), and a positioning hole (220) corresponding to the positioning pin (800) is opened on the carrying plate (200).

9. The sensor detection jig according to claim 1, characterized in that: Rollers (900) are respectively installed at the four corners of the top of the base (100).

10. The sensor detection jig according to claim 1, characterized in that: Pads (1000) are respectively installed on the left and right parts of the bottom end of the base (100), and a third through hole (1010) corresponding to the second through hole (120) is opened on the pad (1000).

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