Equipment for detecting whether terminal is in place in rubber shell

Abstract

The utility model relates to equipment for detecting whether a terminal is in place in a rubber shell. The equipment comprises a substrate, a jig and a detection mechanism, the base plate is horizontally arranged; the jig is arranged at the front part of the substrate and is used for positioning a rubber shell provided with a terminal; the detection mechanism is installed on the rear portion of the substrate in a front-back telescopic mode, and the detection mechanism stretches out forwards to eject out the terminals which are not installed in place in the rubber shell. The device has the beneficial effects that manual observation and detection are replaced, false detection or missing detection is avoided, the product quality is ensured, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of terminal and plastic shell installation, in particular to a device for detecting whether a terminal is in place in a plastic shell. Background Art

[0002] An electronic wiring harness generally includes a plurality of terminals 3 with conductive wires 15, and the plurality of terminals 3 are plugged into different plug holes 13 of a plastic shell 4. Figure 1 As shown, springs 12 are provided on both sides of the terminal 3, and a slot 14 is provided in the plug hole 13 at a position corresponding to the springs 12. Figure 2 As shown, the terminal 3 needs to be in place in the plug hole 13, that is, the spring piece 12 needs to be clamped in the plug hole 13, otherwise it will cause poor contact or no contact, which will eventually cause the connector to heat up and easily cause a fire. At present, whether the terminal 3 is in place in the plastic shell 4 is checked by human eyes (comparing the height of the end of all terminals 3 away from the conductive wire 15 in the plug hole 13 of the plastic shell 4. If the position of the end of a terminal 3 is lower, it may not be in place). The defects of this are that the eyes are easily fatigued and it is easy to misdetect or miss detection. Utility Model Content

[0003] In summary, in order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a device for detecting whether a terminal is in place in a plastic housing.

[0004] The utility model solves the above-mentioned technical problem with the following technical solution: a device for detecting whether a terminal is in place in a plastic shell, comprising a substrate, a fixture and a detection mechanism; the substrate is arranged horizontally; the fixture is installed at the front of the substrate and is used to position the plastic shell with the terminal installed; the detection mechanism is installed at the rear of the substrate and can be telescopically moved forward and backward, and the detection mechanism is extended forward to eject the terminal that is not installed in place in the plastic shell.

[0005] The beneficial effects of the utility model are: replacing manual observation detection, avoiding wrong detection or missed detection, ensuring product quality and improving detection efficiency.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows:

[0007] Furthermore, the jig is detachably mounted on the front portion of the substrate.

[0008] The beneficial effect of adopting the above further technical solution is: different products can be replaced with different fixtures, thereby improving the adaptability of the equipment.

[0009] Furthermore, the jig is provided with a groove matching the protrusion on the plastic shell, and the protrusion on the plastic shell is stuck in the groove and positioned on the jig by manual downward pressure.

[0010] The beneficial effect of adopting the above further technical solution is: achieving positioning during product testing.

[0011] Furthermore, the detection mechanism includes a cylinder and a base; the cylinder is installed at the rear of the base plate, and its telescopic stroke is adjustable and is opened and closed by a foot pedal; the base is located in front of the cylinder and connected to the telescopic rod of the cylinder; the ejector pins are arranged in a one-to-one correspondence with the terminals, and can be installed on the base telescopically forward and backward; the front end of the ejector pin extends to the front of the base and corresponds to the front and back of the terminals in the plastic shell, and then the corresponding terminal is pushed forward under the drive of the cylinder to eject the terminal that is not installed in the plastic shell.

[0012] The beneficial effect of adopting the above further technical solution is: the cylinder drives the ejector to eject the terminal that is not in place, thereby ensuring product quality.

[0013] Furthermore, the base is detachably connected to the telescopic rod.

[0014] Further, the base includes an ejector seat and a spring seat; a first mounting hole corresponding to the ejector pins is provided in the ejector seat, the ejector pins can be slidably installed in the corresponding first mounting hole, and the front end of the ejector pins extends in front of the first mounting hole and corresponds to the front and back of the terminals in the plastic shell; the spring seat is fixed to the rear side of the ejector seat, and a second mounting hole is provided inside thereof corresponding to the rear side of each ejector pin, and a spring is provided in the second mounting hole to resist the rear end of the corresponding ejector pin; the ejector seat and / or the spring seat are detachably connected to the telescopic rod through a driving frame.

[0015] The beneficial effect of adopting the above further technical solution is that different products can be replaced with different bases (including ejector seats, spring seats and ejector pins, etc.), thereby improving the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an enlarged diagram of the assembly of the terminal and the plug hole (single terminal and single plug hole);

[0017] Figure 2 This is an enlarged schematic diagram of the terminal being inserted into the plug hole (the arrow direction is the ejection direction of the ejector, and the terminal at the bottom is not inserted into place);

[0018] Figure 3 A schematic diagram of the utility model when the cylinder is not started;

[0019] Figure 4 This is a schematic diagram of the utility model when the cylinder is started;

[0020] Figure 5 A cross-sectional view of the base.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Base plate, 2. Fixture, 3. Terminal, 4. Plastic shell, 5. Groove, 6. Cylinder, 7. Telescopic rod, 8. Ejector seat, 9. Spring seat, 10. Spring, 11. Drive frame, 12. Shrapnel, 13. Plug hole, 14. Card slot, 15. Conducting wire, 16. Ejector. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] like Figure 3-5 As shown, a device for detecting whether a terminal is in place in a plastic shell comprises a substrate 1, a jig 2 and a detection mechanism. The substrate 1 is arranged horizontally. The jig 2 is mounted on the front of the substrate 1 and is used to position a plastic shell 4 on which a terminal 3 is mounted, specifically as follows: a groove 5 matching a protrusion on the plastic shell 4 is provided on the jig 2, and the protrusion on the plastic shell 4 is stuck in the groove 5 and is positioned on the jig 2 by manually pressing down.

[0025] The detection mechanism is installed on the rear part of the substrate 1 so as to be telescopically movable forward and backward, and the detection mechanism is extended forward to eject the terminal 3 that is not installed in the plastic shell 4. The detection mechanism includes a cylinder 6 and a base. The cylinder 6 is installed on the rear part of the substrate 1, and its telescopic stroke is adjustable and is opened and closed by a foot pedal. The base is located in front of the cylinder 6 and is connected to the telescopic rod 7 of the cylinder 6. The ejector pin 16 is arranged in a one-to-one correspondence with the terminal 3, and is installed on the base so as to be telescopically movable forward and backward. The front end of the ejector pin 16 extends to the front of the base and corresponds to the front and back of the terminal 3 in the plastic shell 4 one by one, and then, driven by the cylinder 6, the corresponding terminal 3 is pushed forward to eject the terminal 3 that is not installed in the plastic shell 4.

[0026] The base includes an ejector seat 8 and a spring seat 9. The ejector seat 8 is provided with a first mounting hole corresponding to the ejector 16. The ejector 16 can be slidably installed in the corresponding first mounting hole, and the front end of the ejector 16 extends to the front of the first mounting hole and corresponds to the terminal 3 in the plastic shell 4. The spring seat 9 is fixed to the rear side of the ejector seat 8, and a second mounting hole is provided inside thereof corresponding to the rear side of each ejector 16. The second mounting hole is provided with a spring 10 that abuts against the rear end of the corresponding ejector 16. The ejector seat 8 and / or the spring seat 9 are detachably connected to the telescopic rod 7 through a drive frame 11.

[0027] During the inspection, the product (a plastic shell 4 plugged with multiple terminals 3) is positioned on the jig 2 to ensure that the protrusion on the product corresponds to the groove 5 on the jig 2, and then the product is pressed down by hand to position it. Next, the pedal of the cylinder 6 is stepped down, and the telescopic rod 7 of the cylinder 6 drives the ejector pin 16 to move forward toward the product through the drive frame 11. Each ejector pin 16 is aligned with the corresponding plug-in hole 13 / the terminal 3 on the product, and as the ejector pin 16 moves forward, it pushes the corresponding terminal 3 forward. If the force of the ejector pin 16 pushing the terminal 3 is too great, the terminal 3 may be damaged, and if the pushing force is too small, the terminal 3 that is not installed in place may not be pushed out of the plastic shell 4. Assuming that the holding force of the terminal 3 in the plastic shell 4 after it is in place is a Newton, the pushing force of the ejector pin 16 to push the corresponding terminal 3 forward is less than a Newton and greater than (a-10) Newtons. The thrust force of the ejector pin 16 on the terminal 3 is adjusted by adjusting the stroke of the cylinder 6 and the material type of the spring 10 to meet the above requirements. If the terminal 3 is not properly inserted in the plastic shell 4, it will be pushed out of the plastic shell 4 by the ejector pin 16. If the terminal 3 is properly inserted in the plastic shell 4, it will remain in the plastic shell 4 after being pushed by the ejector pin 16. By observing the product after being pushed by the ejector pin 16, the staff will identify the terminal 3 that is not properly inserted, and can re-insert the terminal 3 that is not properly inserted into place.

[0028] The jig 2 is detachably mounted on the front of the substrate 1, and the base is detachably connected to the telescopic rod 7. Different products require the use of different jigs 2, ejector seats 8, springs 9, ejector pins 16, etc., wherein the ejector seat 8, springs 9, ejector pins 16, etc. are integrated into a module. When testing different products, the corresponding jig 2 and the above-mentioned integrated module can be installed and fixed to the corresponding positions, thereby improving the adaptability of the equipment.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting whether a terminal is in place in a plastic shell, characterized in that: The invention comprises a substrate (1), a fixture (2) and a detection mechanism; the substrate (1) is arranged horizontally; the fixture (2) is mounted on the front of the substrate (1) and is used to position a plastic shell (4) on which a terminal (3) is mounted; the detection mechanism is mounted on the rear of the substrate (1) and can be telescopically moved forward and backward, and the detection mechanism can be extended forward to eject a terminal (3) that is not mounted in place in the plastic shell (4); The detection mechanism comprises a cylinder (6), a base and a push pin (16); the cylinder (6) is mounted on the rear part of the base plate (1), and its telescopic stroke is adjustable and is opened and closed by a foot pedal; the base is located in front of the cylinder (6) and is connected to the telescopic rod (7) of the cylinder (6); the push pin (16) is arranged in a one-to-one correspondence with the terminal (3), and is mounted on the base in a telescopic manner; the front end of the push pin (16) extends to the front of the base and corresponds to the front and back of the terminal (3) in the plastic shell (4), and then, driven by the cylinder (6), the corresponding terminal (3) is pushed forward to eject the terminal (3) that is not installed in the plastic shell (4).

2. The device for detecting whether a terminal is in place in a plastic shell according to claim 1, characterized in that: The jig (2) is detachably mounted on the front portion of the substrate (1).

3. The device for detecting whether a terminal is in place in a plastic shell according to claim 1, characterized in that: The jig (2) is provided with a groove (5) matching the protrusion on the plastic shell (4); the protrusion on the plastic shell (4) is stuck in the groove (5) and is positioned on the jig (2) by manual downward pressure.

4. The device for detecting whether a terminal is in place in a plastic shell according to claim 1, characterized in that: The base is detachably connected to the telescopic rod (7).

5. The device for detecting whether a terminal is in place in a plastic shell according to claim 1, characterized in that: The base comprises an ejector pin seat (8) and a spring seat (9); a first mounting hole corresponding to the ejector pin (16) is provided in the ejector pin seat (8); the ejector pin (16) can be slidably installed in the corresponding first mounting hole, and the front end of the ejector pin (16) extends to the front of the first mounting hole and corresponds to the terminal (3) in the plastic shell (4) in front and back; the spring seat (9) is fixed to the rear side of the ejector pin seat (8), and a second mounting hole is provided in the spring seat corresponding to the rear side of each ejector pin (16); a spring (10) is provided in the second mounting hole to abut the rear end of the corresponding ejector pin (16); the ejector pin seat (8) and / or the spring seat (9) are detachably connected to the telescopic rod (7) through a driving frame (11).

6. The device for detecting whether a terminal is in place in a plastic shell according to claim 1, characterized in that: The holding force of the terminal (3) in the plastic shell (4) is a, and the force of the ejector pin pushing the corresponding terminal (3) forward is less than a and greater than (a-10).

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