A connector copper bar hole position size detection tool

Abstract

The utility model relates to a kind of detection tools of connector copper bar hole position size, including handle, connecting block and several detection pins, the connecting block is set in one end of the handle, several the detection pin is vertically connected in the bottom of the connecting block, adjacent the detection pin is interval arrangement.This detection tool's use greatly improves the detection efficiency of connector copper bar hole position size, also avoids the misjudgment problem caused by the inaccuracy of three-coordinate probe point, the standardization detection operation of connector has obviously improved, and single detection tempo is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, and in particular to a testing tool for the position and size of connector copper busbar holes. Background Technology

[0002] The connector has an irregular shape and is assembled from multiple parts of different materials. After assembly, the position and size of the copper busbar holes at the top and bottom ends need to be checked to ensure the quality of product delivery. Currently, the position and size of these holes are measured using a standard coordinate measuring machine.

[0003] Currently, coordinate measuring machines (CMMs) are used for measurement. However, because the reference surface for the copper busbar holes is a plastic flange, the CMM probe cannot accurately locate points on the plastic surface due to its poor conductivity. This leads to significant errors in the final evaluation of the copper busbar hole positions and results in misjudgments. Furthermore, CMMs suffer from slow cycle time, making them unsuitable for the continuous inspection requirements of mass production. Summary of the Invention

[0004] This invention provides a tool for detecting the position and size of copper busbar holes in connectors, aiming to solve the problem that the existing three-coordinate measuring machine is slow and cannot meet the detection needs of mass production.

[0005] This utility model provides a tool for detecting the position and size of copper busbar holes in a connector, including a handle, a connecting block, and several detection pins. The connecting block is disposed at one end of the handle, and the several detection pins are vertically connected to the bottom of the connecting block, with adjacent detection pins spaced apart.

[0006] As a further improvement of this utility model, the bottom of the connecting block is provided with a plurality of mounting holes, and the top of the detection pin is press-fitted into the mounting holes.

[0007] As a further improvement of this utility model, the detection pin is cylindrical, and the bottom of the detection pin is chamfered.

[0008] As a further improvement of this utility model, when detecting the inner diameter of the copper busbar hole, the outer diameter of the detection pin is the lower difference of the inner diameter of the hole. If the detection pin is not fully inserted and passes through the copper busbar hole, the copper busbar hole size is unqualified.

[0009] As a further improvement of this utility model, when detecting the hole spacing of the copper busbar holes, if the hole spacing of the copper busbar holes exceeds the spacing of the adjacent detection pins, the detection pins interfere with the holes, and the hole spacing of the copper busbar holes is unqualified.

[0010] As a further improvement of this utility model, the number of detection pins is six.

[0011] The beneficial effects of this utility model are: the use of this testing tool greatly improves the testing efficiency of the position and size of the copper busbar holes of the connector, and also avoids the problem of misjudgment caused by the inaccuracy of the three-coordinate probe. It significantly improves the standardized testing operation of the connector and speeds up the cycle time of single-item testing. Attached Figure Description

[0012] Figure 1 This is an overall drawing of the testing tool of this utility model;

[0013] Figure 2 This is a schematic diagram of the testing tool of this utility model during testing.

[0014] Reference numerals: 1-handle, 2-connecting block, 3-detection pin, 4-chamfer, 5-mounting hole, 6-copper busbar hole. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0016] like Figure 1-2 As shown, this utility model provides a tool for detecting the position and size of connector copper busbar holes, including a handle 1, a connecting block 2 and several detection pins 3. The connecting block 2 is disposed at one end of the handle 1, and several detection pins 3 are vertically connected to the bottom of the connecting block 2, with adjacent detection pins 3 spaced apart.

[0017] As one embodiment of this utility model, the bottom of the connecting block 2 is provided with a plurality of mounting holes 5, and the top of the detection pin 3 is press-fitted to the mounting holes 5.

[0018] In another embodiment of this utility model, the detection pin 3 is cylindrical, and the bottom of the detection pin 3 is provided with a chamfer 4.

[0019] In another embodiment of this utility model, when the inner diameter of the copper busbar hole 6 is detected, the outer diameter of the detection pin 3 is the lower difference of the inner diameter of the hole. If the detection pin 3 is not fully inserted and passes through the copper busbar hole 6, the size of the copper busbar hole 6 is unqualified.

[0020] In another embodiment of this utility model, when the hole spacing of the copper busbar hole 6 is detected, if the hole spacing of the copper busbar hole 6 exceeds the spacing of the adjacent detection pin 3, the detection pin 3 interferes with the hole, and the hole spacing of the copper busbar hole 6 is unqualified.

[0021] In another embodiment of this utility model, the number of detection pins 3 is six.

[0022] This utility model provides a tool for detecting the position and size of copper busbar holes in a connector. Designed based on the shape characteristics of the connector's copper busbar, it uses a quick-connect method to qualitatively detect the position and size of the copper busbar hole 6 at one end. The tool consists of two parts, an upper and a lower quick-connect tool, which are essentially the same except for the length of the detection pin 3. The tool comprises a handle 1, a connecting block 2, and a detection pin 3. The handle 1 and the connecting block 2 are connected by an interference fit. The connecting block 2 has a mounting hole 5, which is also connected to the detection pin 3 by an interference fit.

[0023] During testing, the handle 1 is held manually, and the detection pin 3 is inserted into the copper busbar hole 6. This tool can detect the position, perpendicularity, runout, inner diameter, and spacing of the copper busbar hole 6. The detection pin 3 is a solid cylindrical structure, and the bottom of the detection pin 3 is chamfered 4. In this embodiment of the invention, six detection pins 3 are connected side by side to the bottom of one connecting block 2, and the positions of the six detection pins 3 correspond to the positions of the six through holes on the workpiece being tested.

[0024] The outer diameter and perpendicularity of the single pin of the detection pin 3 are related to the inner diameter and perpendicularity of the hole of the workpiece being tested; the position, runout, and pin spacing among the six detection pins 3 are related to the position, runout, and hole spacing of the hole of the workpiece being tested.

[0025] When inspecting the inner diameter of a hole, the outer diameter of the inspection pin 3 has a detection relationship with the inner diameter of the hole. If the inner diameter of any hole in the workpiece being tested exceeds the tolerance, the outer diameter of the inspection pin 3 will interfere with the inner diameter of the hole during insertion, and the quick inspection tool will not be able to insert smoothly, thus failing the test. When inspecting the hole spacing, the spacing of the inspection pin 3 has a detection relationship with the spacing between the holes. When the spacing of any hole in the workpiece being tested exceeds the tolerance, the inspection pin 3 will interfere with the hole during insertion, and the quick inspection tool will not be able to insert smoothly, thus failing the test. Failure to insert smoothly to the end, meaning the inspection pin 3 is not fully inserted and passes through the workpiece hole, including partial insertion or inability to insert at all, is considered a failure of the workpiece being tested.

[0026] This rapid testing tool has been applied to connector testing in hybrid transmission projects. Practical application has proven that the use of this rapid testing tool has greatly improved the efficiency of detecting the position and size of connector copper busbar holes, while also avoiding misjudgments caused by inaccurate point taking by the coordinate measuring machine probe. It has significantly improved the standardized testing operation of connectors, reducing the single-item testing cycle time from 300 seconds to 5 seconds.

[0027] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A tool for detecting the position and size of copper busbar holes in a connector, characterized in that, It includes a handle, a connecting block, and several detection pins. The connecting block is located at one end of the handle, and the several detection pins are vertically connected to the bottom of the connecting block, with adjacent detection pins spaced apart.

2. The connector copper busbar hole position and size detection tool according to claim 1, characterized in that, The bottom of the connecting block is provided with several mounting holes, and the top of the detection pin is press-fitted into the mounting holes.

3. The tool for detecting the position and size of connector copper busbar holes according to claim 1, characterized in that, The detection pin is cylindrical, and the bottom of the detection pin is chamfered.

4. The tool for detecting the position and size of connector copper busbar holes according to claim 1, characterized in that, When inspecting the inner diameter of the copper busbar hole, the outer diameter of the inspection pin is the lower limit of the inner diameter of the hole. If the inspection pin is not fully inserted and passes through the copper busbar hole, the copper busbar hole size is unqualified.

5. The tool for detecting the position and size of connector copper busbar holes according to claim 1, characterized in that, When testing the spacing between copper busbar holes, if the spacing between the copper busbar holes exceeds the spacing between adjacent test pins, the test pins interfere with the holes, and the spacing between the copper busbar holes is considered unqualified.

6. The connector copper busbar hole position and size detection tool according to claim 1, characterized in that, The number of detection pins is six.

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