A fixture for detecting the positioning of a plastic-cased locking plate

Abstract

This utility model discloses a fixture for detecting the positioning of a plastic housing locking piece, including a base, a powered detection base on the top of the base, a cavity block inside the detection base, a positioning groove that fits the plastic housing locking piece inside the cavity block, a copper pillar embedded in the inner wall of the positioning groove that abuts against the plastic housing locking piece, a spring probe opposite the cavity block on the side of the detection base, the spring probe including a syringe fixed to the detection base, a needle that moves linearly reciprocating inside the syringe, and a dual-color LED light and a buzzer mounted on the detection base. In this utility model, by setting up a detection base, cavity block, positioning groove, copper pillar, and spring probe, and utilizing a dual-contact verification mechanism formed by the copper pillar and spring probe, the positioning detection is only considered successful when the plastic housing locking piece simultaneously triggers both the spring probe and the copper pillar, avoiding single-signal erroneous triggering of conduction caused by factors such as loose connection and oxidation.

Description

Technical Field

[0001] This utility model relates to the field of position detection technology, and in particular to a tooling for detecting the position of a plastic housing locking piece. Background Technology

[0002] A plastic-cased locking plate is a metal locking plate partially encased in a plastic shell. After product manufacturing, it needs to be checked for proper positioning to assess product quality. In existing technologies, most manufacturers of similar products typically detect positioning by triggering normally closed or normally open contacts. However, in practical applications, these methods are single-signal detections. Since contacts, typically represented by switch pins and copper pillars, can experience inaccurate results due to issues like loose connections and oxidation, this method inevitably has flaws and is not suitable for practical applications. Therefore, we propose a tooling for detecting the positioning of plastic-cased locking plates. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a tooling for detecting the positioning of a plastic housing locking piece.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A fixture for detecting the positioning of a plastic shell locking piece is designed, comprising a base, an electrically powered detection base on the top of the base, a cavity block inside the detection base, a positioning groove that fits the plastic shell locking piece inside the cavity block, a copper pillar that abuts against the plastic shell locking piece embedded in the inner wall of the positioning groove, a spring probe opposite to the cavity block on the side of the detection base, the spring probe including a syringe fixed to the detection base, a needle that moves in a linear reciprocating motion inside the syringe, and a dual-color LED light and a buzzer mounted on the detection base.

[0006] In the above scheme, the detection base is connected to the base by fasteners.

[0007] In the above scheme, threaded cylinders are fixed on the outer sides of both ends of the cavity block, and the detection base is locked to the threaded cylinders by fastening screws.

[0008] In the above scheme, a positioning block that fits into the plastic shell locking piece is fixed in the positioning groove.

[0009] In the above scheme, the inner wall of the positioning groove is embedded with an electromagnetic chuck that contacts the plastic shell locking piece, the two ends of the cavity block are provided with connecting pieces one that are connected to the electromagnetic chuck, and the inner wall of the detection base is provided with connecting pieces two that are pressed against connecting pieces one.

[0010] In the above solution, a moving platform is connected inside the copper column through a return spring. A pressure sensor is installed on one side of the moving platform away from the return spring. A plug is installed at the other end of the copper column. A socket for docking with the plug is installed inside the detection base.

[0011] In the above solution, a fixing cap is provided at the root of the needle. A support base is provided on the side of the base. A cylinder with a stroke end connected to the fixing cap is installed inside the support base. A moving hole for the fixing cap and the stroke end of the cylinder to enter and exit is provided on the inner wall of the detection base.

[0012] The advantages and beneficial effects of the present utility model are as follows: By setting the detection base, cavity block, positioning groove, copper column and spring probe, when the plastic shell lock piece to be detected is placed into the positioning groove, when the plastic shell lock piece is in place, the metal part of the plastic shell lock piece contacts the copper column. At this time, by pushing the spring probe, the needle contacts the metal part of the plastic shell lock piece, making the copper column and the spring probe conduct simultaneously. Compared with the prior art, using the double-contact verification mechanism composed of the copper column and the spring probe, only when the plastic shell lock piece triggers both the spring probe and the copper column simultaneously will it be determined that the in-place detection is qualified, avoiding false connection and oxidation and other factors that cause single-signal false triggering conduction, reducing the misjudgment rate, and effectively improving the detection accuracy. By setting the双色LED灯 (two-color LED light) and the buzzer, a feedback mechanism is formed. Using the different colors of light emitted by the two-color LED light and the sound of the buzzer to more directly feedback the result of whether the detection is qualified, making it more convenient to use. By setting the cavity block, threaded barrel and fastening screw, through the cooperation between the fastening screw and the threaded barrel, the cavity block and the detection base are detachably connected. Compared with the prior art, by replacing the cavity blocks with different shapes, it is possible to adapt to different models of plastic shell lock pieces, so as to use the same detection method to perform in-place detection on a variety of different plastic shell lock pieces, expanding the scope of application and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of a plastic shell lock piece in-place detection tooling proposed by the present utility model;

[0015] Figure 2 It is a partial cross-sectional view of the cavity block of a plastic shell lock piece in-place detection tooling proposed by the present utility model;

[0016] Figure 3 It should be noted that "双色LED灯" is directly translated as "two-color LED light" here, and you may need to adjust it according to the actual correct English expression for this component if there is a more accurate term.This is a schematic diagram of the copper column of a plastic shell locking plate positioning detection fixture proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the detection base of a plastic shell locking piece positioning detection fixture proposed in this utility model.

[0018] In the diagram: 1. Base; 2. Detection base; 3. Cavity block; 4. Threaded cylinder; 5. Fastening screw; 6. Positioning groove; 7. Positioning block; 8. Copper column; 9. Pressure sensor; 10. Moving stage; 11. Return spring; 12. Plug; 13. Socket; 14. Support base; 15. Cylinder; 16. Syringe; 17. Needle; 18. Fixing cap; 19. Moving hole; 20. Electromagnetic chuck; 21. Connecting piece one; 22. Connecting piece two; 23. Dual-color LED light; 24. Buzzer. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a plastic shell locking piece positioning detection tool, including a base 1, and an electrically powered detection base 2 on the top of the base 1;

[0021] Furthermore, the testing base 2 is connected to the base 1 by fasteners; the fasteners are respectively set at the four corners of the testing base 2 and the base 1, so that the testing base 2 and the base 1 can be detachably connected, making it easy to replace the testing base 2.

[0022] The detection base 2 is equipped with a cavity block 3, which is set in the same shape as the plastic shell locking piece. The cavity block 3 has a positioning groove 6 that fits the plastic shell locking piece.

[0023] Furthermore, a positioning block 7 that fits into the plastic housing locking piece is fixed inside the positioning groove 6; the positioning block 7 increases the contact area with the plastic housing locking piece, thereby increasing the friction and preventing the plastic housing locking piece from easily detaching from the positioning groove 6.

[0024] The inner wall of the positioning groove 6 is embedded with a copper post 8 that abuts against the plastic case locking piece. When the plastic case locking piece is in place, the copper post 8 contacts the metal part of the plastic case locking piece, thereby making the copper post 8 conductive.

[0025] Furthermore, a movable platform 10 is connected inside the copper pillar 8 via a return spring 11, such as... Figure 3As shown, the moving stage 10 is slidably connected to the inner wall of the copper column 8. A pressure sensor 9 is installed on the side of the moving stage 10 away from the return spring 11. The pressure sensor 9 can detect the pressure applied by the plastic housing locking piece. The pressure reading can provide auxiliary data for the positioning status of the plastic housing locking piece. The change in the pressure sensor reading can also determine whether the plastic housing locking piece is placed in the positioning groove 6. A plug 12 is installed at the other end of the copper column 8. A socket 13 that mates with the plug 12 is installed in the detection base 2. The plug 12 and the socket 13 are electrically connected. The socket 13 is connected to the power supply and the positioning detection control system, respectively.

[0026] The side of the detection base 2 is provided with a spring probe opposite to the cavity block 3. The spring probe includes a syringe 16 fixed to the detection base 2. A needle 17 that performs linear reciprocating motion is movably provided in the syringe 16. The needle 17 is connected to the syringe 16 by a spring. By extending and retracting the spring, the needle 17 can move between the cavity block 3 and the detection base 2.

[0027] Furthermore, a fixing cap 18 is fixed at the root of the needle 17, at the end away from the cavity block 3. A support seat 14 is integrally provided on the side of the base 1. A cylinder 15 connected to the fixing cap 18 is installed inside the support seat 14. The cylinder 15 is an SMC cylinder. The cylinder 15 is set horizontally. A moving hole 19 is opened on the inner wall of the detection base 2 so that the fixing cap 18 and the cylinder 15 can enter and exit. The diameter of the moving hole 19 is larger than the diameter of the piston rod of the cylinder 15 and the diameter of the fixing cap 18.

[0028] Specifically, by setting up a detection base 2, a cavity block 3, a positioning groove 6, a copper pillar 8, and a spring probe, the plastic shell locking piece to be tested is placed into the positioning groove 6. When the plastic shell locking piece is in place, the metal part of the plastic shell locking piece contacts the copper pillar 8. At this time, by pushing the spring probe, the needle 17 contacts the metal part of the plastic shell locking piece, so that the copper pillar 8 and the spring probe are simultaneously connected. Compared with the existing technology, the dual-contact verification mechanism composed of the copper pillar 8 and the spring probe will only be judged as qualified when the plastic shell locking piece triggers the spring probe and the copper pillar 8 at the same time. This avoids single-signal erroneous triggering of conduction caused by factors such as poor connection and oxidation, reduces the false judgment rate, and effectively improves the detection accuracy.

[0029] The detection base 2 is equipped with a dual-color LED light 23 and a buzzer 24;

[0030] Specifically, by setting up a dual-color LED light 23 and a buzzer 24 to form a feedback mechanism, the different colors of light emitted by the dual-color LED light 23 and the sound of the buzzer 24 are used to provide more direct feedback on whether the test is qualified, making it more convenient to use.

[0031] Furthermore, threaded cylinders 4 are fixed to the outer sides of both ends of the cavity block 3, and the detection base 2 is locked to the threaded cylinders 4 by fastening screws 5;

[0032] Specifically, by setting up cavity block 3, threaded cylinder 4 and fastening screw 5, the cavity block 3 and the detection base 2 can be detachably connected through the cooperation between the fastening screw 5 and the threaded cylinder 4. Compared with the existing technology, by replacing the cavity block 3 with different shapes, different models of plastic shell locking plates can be adapted, so that the same detection method can be used to perform position detection on a variety of different plastic shell locking plates, thus expanding the scope of application and making it convenient to use.

[0033] Furthermore, the inner wall of the positioning groove 6 is embedded with an electromagnetic chuck 20 that contacts the plastic shell locking piece. The metal part of the plastic shell locking piece is generally made of iron and can be attracted by magnetic materials. The two ends of the cavity block 3 are provided with connecting pieces 1 21 that are connected to the electromagnetic chuck 20. The inner wall of the detection base 2 is provided with connecting pieces 22 that are pressed against connecting pieces 1 21. Connecting pieces 22 are connected to the power circuit.

[0034] Specifically, the electromagnetic chuck 20 includes a magnetic pole array, a magnetic shielding layer, an iron core, a coil, and a sealing material. By energizing the coil, the iron core is magnetized, thereby attracting the metal side of the plastic shell locking plate.

[0035] Working principle:

[0036] The plastic housing locking piece is placed inside the cavity block 3. The pressure sensor 9 checks for a reading to determine if the plastic housing locking piece is positioned in the positioning groove 6. If a reading is obtained, the electromagnetic chuck 20 locks the plastic housing locking piece in place. The cylinder 15 pushes the spring probe to contact the plastic housing locking piece, triggering a closing signal. Simultaneously, a signal is output after the positioning copper post 8 is detected to be in contact. If the plastic housing locking piece is not installed in place, the copper post 8 cannot make contact, the signal does not pass, the dual-color LED 23 lights up red, and the buzzer 24 sounds an alarm. Once the plastic housing locking piece is in place and contacts the copper post 8, the conduction signal passes, the dual-color LED 23 lights up green, the electromagnetic chuck 20 releases the plastic housing locking piece, and the cavity block 3 returns to its initial state.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture for detecting the positioning of a plastic-cased locking piece, comprising a base (1), characterized in that, The base (1) is provided with an electrically powered detection base (2) at the top. The detection base (2) is equipped with a cavity block (3). The cavity block (3) is provided with a positioning groove (6) that fits with the plastic shell locking piece. The inner wall of the positioning groove (6) is embedded with a copper column (8) that abuts against the plastic shell locking piece. The side of the detection base (2) is provided with a spring probe that is opposite to the cavity block (3). The spring probe includes a syringe (16) fixed to the detection base (2). The syringe (16) is provided with a needle (17) that moves in a straight line and reciprocates. The detection base (2) is equipped with a dual-color LED light (23) and a buzzer (24).

2. The fixture for detecting the positioning of a plastic housing locking piece according to claim 1, characterized in that, The detection base (2) is connected to the base (1) by fasteners.

3. The fixture for detecting the positioning of a plastic housing locking piece according to claim 1, characterized in that, The cavity block (3) has threaded cylinders (4) fixed on both sides of its outer sides, and the detection base (2) is locked to the threaded cylinders (4) by fastening screws (5).

4. The fixture for detecting the positioning of a plastic housing locking piece according to claim 1, characterized in that, The positioning groove (6) is fixed with a positioning block (7) that fits into the plastic shell locking piece.

5. The fixture for detecting the positioning of a plastic housing locking piece according to claim 1, characterized in that, The inner wall of the positioning groove (6) is provided with an electromagnetic chuck (20) that contacts the plastic shell locking piece. The two ends of the cavity block (3) are provided with connecting piece one (21) that connects to the electromagnetic chuck (20). The inner wall of the detection base (2) is provided with connecting piece two (22) that is pressed against connecting piece one (21).

6. The fixture for detecting the positioning of a plastic housing locking piece according to claim 1, characterized in that, A movable stage (10) is connected inside the copper column (8) via a reset spring (11). A pressure sensor (9) is installed on the side of the movable stage (10) away from the reset spring (11). A plug (12) is installed on the other end of the copper column (8). A socket (13) that connects to the plug (12) is installed inside the detection base (2).

7. The fixture for detecting the positioning of a plastic housing locking piece according to claim 1, characterized in that, The needle (17) has a fixed cap (18) at its root, and the base (1) has a support seat (14) on its side. The support seat (14) has a cylinder (15) whose stroke end is connected to the fixed cap (18). The inner wall of the detection base (2) has a moving hole (19) for the fixed cap (18) and the stroke end of the cylinder (15) to enter and exit.

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