Detection tool for positioning tray of electronic control unit

Abstract

The utility model relates to the technical field of testing fixtures, in particular to a testing fixture for an electronic control unit positioning tray, which comprises a bottom plate, a tray positioning pin, clamps, a floating plate and guide pins, the tray positioning pin, the guide pins and the clamps are mounted at the top of the bottom plate, the clamps are positioned on two sides of the top of the bottom plate, and guide holes and mounting holes are arranged on the surface of the floating plate. A slidable floating head is mounted in each mounting hole, a spring is sleeved outside each floating head, and two ends of each spring respectively abut against the lower surface of the corresponding mounting hole and a boss at the bottom of the corresponding floating head. Compared with the prior art, whether the positioning tray is deformed or not is judged through the tray positioning pin, whether the product positioning pin of the positioning tray is deformed or loosened or not can be quickly judged through whether the floating head in the floating plate mounting hole is jacked up or not, and the abnormal position can be quickly positioned; the inspection efficiency of the positioning tray is improved, and the product risk caused by the unqualified positioning tray is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of checking tools, in particular to a checking tool used for positioning a tray of an electronic control unit. Background Art

[0002] In the production of electronic control units, some batch processes, such as curing, cooling, and cleaning, all use positioning trays to load products to improve production efficiency.

[0003] Due to the high precision requirements in the production process of electronic products and the risk of bumps and scratches, if the positioning tray is deformed or the positioning pins are tilted, deformed or loose, it is very easy to cause bumps and scratches on the product, which will pose a high safety risk and serious consequences.

[0004] Currently, the inspection of positioning pallets is mainly carried out by personnel visually, which has the problems of low inspection efficiency and difficulty in identifying slight deformations.

[0005] Therefore, it is necessary to design a fixture for positioning the tray of the electronic control unit to improve the inspection efficiency and solve the problem that small deformations are difficult to identify. Summary of the Invention

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a checking fixture for positioning a tray of an electronic control unit, so as to improve the inspection efficiency and solve the problem that small deformations are difficult to identify.

[0007] In order to achieve the above-mentioned purpose, the utility model is a checking fixture for positioning a pallet of an electronic control unit, comprising a base plate, a pallet positioning pin, a clamp, a floating plate, and a guide pin. The pallet positioning pin, the guide pin, and the clamp are installed on the top of the base plate. The installation position of the pallet positioning pin corresponds to the position of the positioning hole of the positioning pallet. The clamp is located on both sides of the top of the base plate. The surface of the floating plate is provided with guide holes and mounting holes. The setting positions of the mounting holes correspond one-to-one to the positions of the product positioning pins of the positioning pallet. A slidable floating head is installed in each mounting hole. The outer sleeve of the floating head is provided with a spring. The two ends of the spring respectively resist the lower surface of the mounting hole and the bottom boss of the floating head. The floating plate covers the top of the base plate, and the guide pin is inserted into the guide hole of the floating plate.

[0008] The tray positioning pin is inserted into the positioning hole of the positioning tray, the positioning tray is fixed to the top of the base plate with a clamp, the product positioning pin is inserted into the through hole of the floating head or the product positioning pin is against the floating head, and the upper end of the floating head is exposed from the top of the mounting hole.

[0009] An electronic control unit is placed on the positioning tray.

[0010] Handles are provided on both sides of the floating plate.

[0011] A support block is installed on the bottom plate. The support block is located between the positioning pins of the tray and abuts against the lower surface of the positioning tray.

[0012] The tray positioning pins include two triangular main positioning pins and two diamond-shaped auxiliary positioning pins.

[0013] The guide pins include two tapered guide pins and two flat-head guide pins.

[0014] The guide pin and the guide hole are connected by an oil-free bushing.

[0015] Compared with the prior art, the utility model can judge whether the positioning pallet is deformed by the pallet positioning pin and whether the floating head in the floating plate mounting hole is lifted up, so as to quickly judge whether the product positioning pin of the positioning pallet is deformed or loose, and can quickly locate the abnormal position, thereby improving the inspection efficiency of the positioning pallet and reducing the product risk caused by unqualified positioning pallets. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 This is a diagram of the usage state of the utility model.

[0018] Figure 3 This is a structural diagram of the floating head of the utility model.

[0019] Figure 4 It is a schematic diagram of the floating head of the utility model being lifted and not lifted. DETAILED DESCRIPTION

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] See also Figure 1 、 Figure 3 The utility model is a gauge for positioning a pallet for an electronic control unit, comprising a base plate, a pallet positioning pin, a clamp, a floating plate, and a guide pin. A pallet positioning pin 3, a guide pin 4, and a clamp 2 are installed on the top of the base plate 5. The installation position of the pallet positioning pin 3 corresponds to the position of the positioning hole of the positioning pallet 6. The clamp 2 is located on both sides of the top of the base plate 5. A guide hole 11 and a mounting hole 12 are provided on the surface of the floating plate 1. The setting position of the mounting hole 12 corresponds one-to-one to the position of the product positioning pin 61 of the positioning pallet 6. A slidable floating head 13 is installed in each mounting hole 12. A spring 15 is provided on the outer sleeve of the floating head 13. The two ends of the spring 15 respectively press against the lower surface of the mounting hole 12 and the bottom boss of the floating head 13. The floating plate 1 covers the top of the base plate 5, and the guide pin 4 is inserted into the guide hole 11 of the floating plate 1.

[0022] See also Figure 2 The tray positioning pin 3 is inserted into the positioning hole of the positioning tray 6. The positioning tray 6 is fixed to the top of the base plate 5 using the clamp 2. The product positioning pin 61 is inserted into the through hole of the floating head 13 or the product positioning pin 61 is pressed against the floating head 13. The upper end of the floating head 13 is exposed from the top of the mounting hole 12. The electronic control unit 7 is placed on the positioning tray 6.

[0023] In order to facilitate the operation of the floating board 1 by hand, handles 14 are provided on both sides of the floating board 1 .

[0024] In order to provide support for the positioning tray 6 , a support block 8 is installed on the bottom plate 5 . The support block 8 is located between the tray positioning pins 3 , and the support block 8 abuts against the lower surface of the positioning tray 6 .

[0025] The tray positioning pins 3 include two triangular main positioning pins and two diamond auxiliary positioning pins, which not only fit the positioning method of the positioning tray 6 in actual application scenarios, but also ensure that the positioning tray 6 is accurately positioned on the inspection fixture without over-positioning.

[0026] The guide pins 4 consist of two tapered guide pins and two flat-head guide pins. These two tapered and two flat-head guide pins are arranged diagonally. The tapered guide pins provide both guidance and positioning, while also enhancing ease of use. The four guide pins feature equal-height shoulders to ensure consistent Z-axis heights of the floating plate 1 and prevent impact damage to the positioning tray. The floating plate 1 and base plate 5 utilize a high-frequency friction fit. For economical and practical reasons, the guide pins 4 are connected to the guide holes 11 using oil-free bushings to achieve sliding friction.

[0027] See also Figure 3 The bottom boss of the floating head 13 acts as a limiter to prevent the floating head 13 from falling out of the floating plate 1. At the same time, the spring 15 ensures that the angle of the floating head 13 remains unchanged during its extension and contraction, and ensures that when the product positioning pin 61 is in the correct direction, the floating head 13 is kept from being lifted up by the elastic force of the spring 14.

[0028] When the utility model is in operation, the four tray positioning pins 9 are used to accurately position the positioning tray 6 . If the positioning tray 6 itself is severely deformed, the positioning holes of the positioning tray 6 cannot be inserted with the tray positioning pins 9 .

[0029] After the positioning tray 6 is placed, the four clamps 2 are pressed to simulate the positioning method of the positioning tray 6 in the production line, so that the positioning tray 6 is flattened and the positioning is kept accurate.

[0030] Next, the employee holds the floating plate 1 and uses the guide holes 11 on the floating plate 1 to match the guide pins 4, so that the 24 floating heads 13 in the 24 mounting holes 12 of the floating plate 1 completely coincide with the product positioning pins 61 on the positioning tray 6. The product positioning pins 61 are in contact with the floating heads 13, which are at a standard angle on the floating plate 1. When the angle of the product positioning pins 61 is consistent with the standard angle and there is no tilt or deformation, the product positioning pins 61 will pass through the through holes of the floating heads 13 smoothly and the floating heads 13 will not be ejected. When the angle of the product positioning pins 61 deviates or there is tilt or deformation, the product positioning pins 61 interfere with the floating heads 13, and the floating heads 13 are pushed up and extend out of the surface of the floating plate, as shown in FIG. Figure 4 As shown, abnormal product positioning pins 61 can be quickly identified visually.

[0031] Considering the actual usage scenario, the base plate 5 is made of stainless steel and the floating plate 1 is made of aluminum alloy, taking into account both cost and ergonomic requirements.

[0032] This new tool uses the pallet's positioning pins to determine if the pallet is deformed. By determining whether the floating head in the floating plate's mounting hole is lifted, it can quickly determine if the pallet's product positioning pins are deformed or loose. This allows for rapid location of any abnormal position, improving pallet inspection efficiency and reducing product risks associated with unqualified pallets. This new tool is suitable for pallet inspections requiring high positioning accuracy, or similar pallet inspection tools. It can also be applied to various scenarios where direct inspection is inconvenient, using the height difference of the floating head to provide feedback on minor differences in the inspected parts.

Claims

1. A fixture for positioning a pallet for an electronic control unit, comprising a base plate, pallet positioning pins, a clamp, a floating plate, and a guide pin, characterized in that: The top of the base plate (5) is equipped with a tray positioning pin (3), a guide pin (4), and a clamp (2). The installation position of the tray positioning pin (3) corresponds to the position of the positioning hole of the positioning tray (6). The clamp (2) is located on both sides of the top of the base plate (5). The surface of the floating plate (1) is provided with a guide hole (11) and a mounting hole (12). The setting position of the mounting hole (12) corresponds to the position of the product positioning pin (61) of the positioning tray (6). A slidable floating head (13) is installed in each mounting hole (12). The outer sleeve of the floating head (13) is provided with a spring (15). The two ends of the spring (15) respectively press against the lower surface of the mounting hole (12) and the bottom boss of the floating head (13). The floating plate (1) covers the top of the base plate (5), and the guide pin (4) is inserted into the guide hole (11) of the floating plate (1).

2. The inspection tool for positioning a tray for an electronic control unit according to claim 1, characterized in that: The tray positioning pin (3) is inserted into the positioning hole of the positioning tray (6), the positioning tray (6) is fixed to the top of the base plate (5) by a clamp (2), the product positioning pin (61) is inserted into the through hole of the floating head (13) or the product positioning pin (61) is against the floating head (13), and the upper end of the floating head (13) is exposed from the top of the mounting hole (12).

3. The inspection tool for positioning a tray for an electronic control unit according to claim 1, characterized in that: An electronic control unit (7) is placed on the positioning tray (6).

4. The inspection tool for positioning a tray for an electronic control unit according to claim 1, characterized in that: Handles (14) are provided on both sides of the floating plate (1).

5. The inspection tool for positioning a tray for an electronic control unit according to claim 1, characterized in that: A support block (8) is mounted on the bottom plate (5), the support block (8) is located between the tray positioning pins (3), and the support block (8) abuts against the lower surface of the positioning tray (6).

6. The inspection tool for positioning a tray for an electronic control unit according to claim 1, characterized in that: The tray positioning pins (3) include two triangular main positioning pins and two diamond-shaped auxiliary positioning pins.

7. The inspection tool for positioning a tray for an electronic control unit according to claim 1, characterized in that: The guide pins (4) include two tapered guide pins and two flat-head guide pins.

8. The inspection tool for positioning a tray for an electronic control unit according to claim 1, characterized in that: The guide pin (4) and the guide hole (11) are connected by an oil-free bushing.

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