Composite testing fixture for height and location degree of armature three-phase copper bar

Abstract

The utility model relates to an armature three-phase copper bar height and position degree composite testing fixture, which comprises a base, an inner diameter sleeve is arranged on the base, a plurality of positioning pins are uniformly distributed on the periphery of the inner diameter sleeve on the base along the circumferential direction, the upper end of each positioning pin is coaxially connected with a cylindrical pin, a positioning column is arranged on the base, and the positioning column is provided with a positioning hole. A rectangular groove is formed in the side wall of the upper end of the positioning column, a counterbore is formed in the upper end face of the positioning column and communicated with the rectangular groove, a sliding block is arranged in the rectangular groove in a penetrating mode, a check block is arranged at one end of the sliding block, a threaded hole and a detection through hole are formed in the sliding block, and a detection pin is arranged in the detection through hole in a penetrating mode. Through the cooperation of the positioning pin and the positioning hole of the armature to be detected and the cooperation of the inner diameter sleeve and the inner circumferential surface of the armature to be detected, the reference surface of the armature can be well limited, simple and accurate armature positioning is realized, and the reference positioning consistency of batch products is better. The height and the position degree are synchronously detected through pushing of the sliding block, the problem that the measurement rhythm of a machine detection method is slow or the manual measurement error is large is effectively solved, and the stability and the detection rhythm of a product are better.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to motor manufacturing technology, in particular to a composite inspection tool for the height and position of an armature three-phase copper bar. Background Art

[0002] The existing three-phase copper busbar inspection methods are mainly divided into two categories: the first category uses general measuring tools to directly detect the length, height and other dimensions of the copper busbar, but its disadvantage is also obvious, and it cannot detect whether the form and position tolerances such as position are qualified; the second category is to use special inspection equipment for measurement. This type of inspection method has high accuracy for position detection, but its disadvantages are also obvious. This type of equipment requires reference positioning, and burrs and residual paint on the end faces and inner holes of the parts will affect the inspection results. In addition, its tact is slow, and batch inspection is difficult to meet. Summary of the Invention

[0003] The purpose of the utility model is to provide a composite inspection tool for the height and position of the three-phase copper bar of the armature, which solves the technical problems in the prior art of being unable to detect whether the form and position tolerances such as the position are qualified, inaccurate positioning, and slow beat.

[0004] The utility model provides a composite inspection tool for the height and position of an armature three-phase copper bar, comprising a base, an inner diameter sleeve being provided on the base, a plurality of positioning pins being uniformly distributed on the outer circumference of the inner diameter sleeve along the circumferential direction on the base, the upper end of any positioning pin being coaxially connected to a cylindrical pin, a positioning column being provided on the base, a rectangular groove being provided in the upper end side wall of the positioning column, a countersunk hole being provided in the upper end face of the positioning column, the countersunk hole being connected to the rectangular groove, a slider being passed through the rectangular groove, a stopper being provided at one end of the slider, a threaded hole and a detection through-hole being provided on the slider, the threaded hole being located between the stopper and the detection through-hole, the countersunk hole of the positioning column being connected to the threaded hole of the slider through a fixing screw, and a detection pin being passed through the detection through-hole.

[0005] Furthermore, a boss is provided at the bottom of the positioning pin, and the boss is fixed to the base by a bolt.

[0006] Furthermore, the inner diameter sleeve is fixed to the base by bolts.

[0007] Furthermore, two fixing holes are provided at the bottom of the positioning column, and the fixing holes are fixed to the base through bolts.

[0008] Furthermore, the upper end surface of the inner diameter sleeve is 3 to 5 mm higher than the upper end surface of the positioning pin.

[0009] Furthermore, the outer circle of the upper end surface of the inner diameter sleeve is provided with a rounded corner.

[0010] Furthermore, the distance from the upper end surface of the positioning pin to the base is greater than the length of the welding end of the armature core to be tested.

[0011] Furthermore, the upper end surface of the locating pin is defined as A reference, the outer circumferential surface of the inner diameter sleeve is defined as B reference, and the axis of the locating pin is defined as C reference. The position values of the three detection through holes based on A reference, B reference and C reference are all smaller than the position values of the locating holes of the three-phase copper busbar of the armature to be tested, and the diameter of the detection through hole is 0.5 to 1 mm larger than the diameter of the locating hole of the three-phase copper busbar of the armature to be tested.

[0012] Furthermore, the maximum diameter of the detection pin inserted into the detection through hole is 0.15 to 0.2 mm smaller than the minimum diameter of the positioning hole of the armature three-phase copper busbar to be tested, and the length of the detection pin runs through the entire slider.

[0013] Furthermore, a groove is provided in the end surface of the slider, and the height from the lower end surface of the groove to the upper end surface of the positioning pin is equal to the height of the lower end surface of the three-phase copper bar of the armature to be tested to the lower end surface of the armature iron core to be tested, and the height from the upper end surface of the groove to the upper end surface of the positioning pin is equal to the height of the lower end surface of the three-phase copper bar of the armature to be tested to the lower end surface of the armature iron core to be tested, and the tolerance is the upper difference; the distance from the inner end surface of the groove to the axis of the detection through hole is more than 5 mm greater than the distance from the center hole of the three-phase copper bar of the armature to be tested to the outer end surface of the three-phase copper bar of the armature to be tested.

[0014] Compared with the prior art, the utility model has positive and obvious effects.

[0015] 1) By matching the positioning pin with the positioning hole of the armature to be tested, and the inner diameter sleeve with the inner circumference of the armature to be tested, the reference surface of the armature can be well limited, achieving simple and accurate armature positioning, and making the reference positioning consistency of batch products better.

[0016] 2) The motion mechanism of the slider and the positioning column can avoid interference with the armature, and achieve accurate positioning of the armature three-phase copper busbar by the inspection fixture.

[0017] 3) The height and position are detected synchronously by pushing the slider, which effectively alleviates the problems of slow measurement cycle of machine detection method or large error of manual measurement, making the product stability and detection cycle better.

[0018] 4) One inspection fixture can inspect two armatures in turn, which increases economy and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of a composite inspection tool for the height and position of a three-phase copper bar of an armature according to the present invention.

[0020] Figure 2The utility model is a schematic diagram of the inner diameter sleeve in a composite inspection tool for the height and position accuracy of an armature three-phase copper bar.

[0021] Figure 3 The utility model is a schematic diagram of a positioning pin in a composite inspection tool for the height and position accuracy of a three-phase copper bar of an armature.

[0022] Figure 4 The utility model is a schematic diagram of a positioning column in a composite inspection tool for the height and position accuracy of a three-phase copper bar of an armature.

[0023] Figure 5 The utility model is a schematic diagram of a slider in a composite inspection fixture for the height and position accuracy of a three-phase copper bar of an armature.

[0024] Reference numerals:

[0025] 1. Base; 2. Base pads; 3. Positioning pin; 4. Inner diameter sleeve; 5. Positioning column; 6. Slider; 7. Fixing screw; 8. Detection pin;

[0026] 301. Upper end surface of the locating pin (A reference); 302. Base contact surface; 303. Boss; 401. Fillet; 501. Fixing hole; 502. Rectangular groove; 503. Countersunk hole; 601. Threaded hole; 602. Detection through hole; 603. Stopper; 304. Cylindrical pin. DETAILED DESCRIPTION

[0027] The following is a further description of the present invention in conjunction with an embodiment. However, the present invention is not limited to the embodiment. All similar variations of the present invention should be included in the scope of protection of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of description and does not limit the technical solution of the present invention.

[0028] like Figure 1-Figure 5 As shown, a composite inspection tool for the height and position of an armature three-phase copper busbar of the present invention comprises a base 1, an inner diameter sleeve 4 is provided on the base 1, and a plurality of positioning pins 3 are evenly distributed on the outer circumference of the inner diameter sleeve 4 on the base 1 in the circumferential direction, and the upper end of any positioning pin 3 is coaxially connected to a cylindrical pin 304, a positioning column 5 is provided on the base, a rectangular groove 502 is provided in the upper end side wall of the positioning column 5, a countersunk hole 503 is provided in the upper end surface of the positioning column 5, the countersunk hole 503 is communicated with the rectangular groove 502, a slider 6 is passed through the rectangular groove 502, a stopper 603 is provided at one end of the slider 6, a threaded hole 601 and a detection through hole 602 are provided on the slider 6, the threaded hole 601 is located between the stopper 603 and the detection through hole 602, the countersunk hole 503 of the positioning column 5 is connected to the threaded hole 601 of the slider 6 through a fixing screw 7, and a detection pin 8 is passed through the detection through hole 602.

[0029] Furthermore, a boss 303 is provided at the bottom of the positioning pin 3 , and the boss 303 is fixed to the base 1 by bolts.

[0030] Furthermore, the inner diameter sleeve 4 is fixed to the base 1 by bolts.

[0031] Furthermore, two fixing holes 501 are provided at the bottom of the positioning column 5 , and the fixing holes 501 are fixed to the base 1 by bolts.

[0032] Furthermore, the upper end surface of the inner diameter sleeve 4 is 3 to 5 mm higher than the upper end surface 301 of the positioning pin 3 .

[0033] Furthermore, the outer circle of the upper end surface of the inner diameter sleeve 4 is provided with a rounded corner 401, which facilitates the clearance fit between the armature core to be measured and the inner diameter sleeve 4, and also prevents serious warping of the armature core when it is taken out after the measurement.

[0034] Furthermore, the distance between the upper end surface 301 of the positioning pin 3 and the base 1 is greater than the length of the welding end of the armature core to be tested.

[0035] Furthermore, the upper end surface 301 of the positioning pin 3 is defined as the A reference, the outer circumferential surface of the inner diameter sleeve 4 is defined as the B reference, and the axis of the positioning pin 3 is defined as the C reference. The position values of the three detection through holes 602 based on the A reference, the B reference and the C reference are all smaller than the position values of the positioning holes of the three-phase copper busbar of the armature to be tested. The diameter of the detection through hole 602 is 0.5 to 1 mm larger than the diameter of the positioning holes of the three-phase copper busbar of the armature to be tested.

[0036] Furthermore, the maximum diameter of the detection pin 8 inserted into the detection through hole 602 is 0.15 to 0.2 mm smaller than the minimum diameter of the positioning hole of the armature three-phase copper busbar to be tested, and the length of the detection pin 8 runs through the entire slider 6 .

[0037] Furthermore, a groove is provided in the end face of the slider 6, and the height from the lower end face of the groove to the upper end face 301 of the positioning pin 3 is equal to the height of the lower end face of the three-phase copper bar of the armature to be tested to the lower end face of the armature iron core to be tested, and the height from the upper end face of the groove to the upper end face 301 of the positioning pin 3 is equal to the height of the lower end face of the three-phase copper bar of the armature to be tested to the lower end face of the armature iron core to be tested, and the distance from the inner end face of the groove to the axis of the detection through hole 602 is more than 5 mm larger than the distance from the center hole of the three-phase copper bar of the armature to be tested to the outer end face of the three-phase copper bar of the armature to be tested.

[0038] Specifically, the bottom of the base 1 is provided with base feet 2. The number of the detection through holes 602 is three.

[0039] Specifically, the countersunk hole 503, the fixing screw 7, the fillet 401, the armature core to be tested, the three-phase copper busbar of the armature to be tested, etc. in this embodiment all adopt well-known solutions in the prior art, which are well understood by those skilled in the art and will not be described in detail here.

[0040] The working principle of this embodiment is as follows:

[0041] The center position of the positioning column 5 is relatively fixed to the center position of the inner diameter sleeve 4, which is convenient for determining the position of the detection through hole 602 of the slider 6. The rectangular groove 502 is used to insert the slider 6 and slide it, and the stopper 603 is used to limit the sliding stroke of the slider 6.

[0042] During the inspection, only the slider 6, the fixing screw 7 and the inspection pin 8 need to be changed in position, and the components installed on the base 1 do not need to be removed.

[0043] Before testing, install the armature to be tested and vertically lower it to the upper end face 301 of the locating pin. While maintaining a coaxial clearance between the inner diameter sleeve 4 and the armature, and the locating pin 3 aligned with the pin hole of the armature, the lower end face of the armature should be aligned with the upper end face 301 of the locating pin (reference A), the center of the pin hole of the armature should be aligned with the axis of the locating pin 3 (reference C), and the cylindrical pin 304 should be aligned with the locating hole of the armature core. The armature is now in place, and the three-phase busbars are fixed in place.

[0044] During detection, first slide block 6 is inserted into the rectangular groove 502 of positioning post 5, and then slide block 6 is pushed to move inward. If the armature three-phase copper bar height does not meet the drawing requirements, then slide block 6 has interfered with the three-phase copper bar when it has not slid to the stopper 603 limit and is judged to be unqualified; If the armature three-phase copper bar height meets the drawing requirements, then slide block 6 can slide to the stopper 603 and contact the positioning post 5 limit and during the process, slide block 6 does not interfere with the three-phase copper bar. After slide block 6 is in place, the relative position of slide block 6 is fixed by fixing screw 7 connecting countersunk hole 503 and threaded hole 601. Then detection pin 8 is inserted into the detection through hole 602 of slide block 6. If three detection pins 8 can all pass through the positioning hole of armature three-phase copper bar smoothly, then it is judged that the armature three-phase copper bar position to be tested is qualified, otherwise it is judged to be unqualified.

[0045] The advantages of the utility model are:

[0046] 1) By cooperating the locating pin 3 with the locating hole of the armature to be tested and the inner diameter sleeve 4 with the inner circumference of the armature to be tested, the reference surface of the armature can be well limited, achieving simple and accurate armature positioning, and making the reference positioning consistency of batch products better.

[0047] 2) The motion mechanism of the slider 6 and the positioning column 5 can avoid interference with the armature, and achieve accurate positioning of the armature three-phase copper busbar by the inspection fixture.

[0048] 3) The height and position are detected synchronously by pushing the slider 6, which effectively alleviates the problems of slow measurement rhythm of machine detection methods or large errors in manual measurement, making the product stability and detection rhythm better.

[0049] 4) One inspection fixture can inspect two armatures in turn, which increases economy and convenience.

Claims

1. A composite inspection tool for the height and position of three-phase copper bars of an armature, characterized in that: The invention comprises a base, wherein an inner diameter sleeve is provided on the base, and a plurality of positioning pins are evenly distributed on the outer circumference of the inner diameter sleeve along the circumferential direction on the base, and the upper end of any positioning pin is coaxially connected to a cylindrical pin, and a positioning column is provided on the base, and a rectangular groove is provided in the upper end side wall of the positioning column, and a countersunk hole is provided in the upper end face of the positioning column, and the countersunk hole is connected with the rectangular groove, and a slider is passed through the rectangular groove, and a stopper is provided at one end of the slider, and a threaded hole and a detection through hole are provided on the slider, and the threaded hole is located between the stopper and the detection through hole, and the countersunk hole of the positioning column is connected to the threaded hole of the slider through a fixing screw, and a detection pin is passed through the detection through hole.

2. A composite gauge for measuring the height and position of a three-phase armature copper bar according to claim 1, characterized in that: A boss is provided at the bottom of the positioning pin, and the boss is fixed to the base by a bolt.

3. The composite gauge for measuring the height and position of a three-phase armature copper bar according to claim 1, characterized in that: The inner diameter sleeve is fixed to the base by bolts.

4. The composite gauge for measuring the height and position of a three-phase copper bar of an armature according to claim 1, characterized in that: The bottom of the positioning column is provided with two fixing holes, which are fixed to the base through bolts.

5. The composite gauge for measuring the height and position of a three-phase armature copper bar according to claim 1, characterized in that: The upper end surface of the inner diameter sleeve is 3 to 5 mm higher than the upper end surface of the positioning pin.

6. The composite gauge for measuring the height and position of a three-phase copper bar of an armature according to claim 1, characterized in that: The outer circle of the upper end surface of the inner diameter sleeve is provided with a rounded corner.

7. The composite gauge for measuring the height and position of a three-phase armature copper bar according to claim 1, characterized in that: The distance between the upper end surface of the positioning pin and the base is greater than the length of the welding end of the armature core to be tested.

8. The composite gauge for measuring the height and position of a three-phase armature copper bar according to claim 1, characterized in that: The upper end surface of the locating pin is defined as A reference, the outer circumferential surface of the inner diameter sleeve is defined as B reference, and the axis of the locating pin is defined as C reference. The position values of the three detection through holes based on A reference, B reference and C reference are all smaller than the position values of the locating holes of the three-phase copper busbar of the armature to be tested. The diameter of the detection through hole is 0.5 to 1 mm larger than the diameter of the locating hole of the three-phase copper busbar of the armature to be tested.

9. The composite gauge for measuring the height and position of a three-phase armature copper bar according to claim 1, characterized in that: The maximum diameter of the detection pin inserted into the detection through hole is 0.15 to 0.2 mm smaller than the minimum diameter of the positioning hole of the three-phase copper busbar of the armature to be tested, and the length of the detection pin runs through the entire slider.

10. The composite gauge for measuring the height and position of a three-phase armature copper bar according to claim 1, characterized in that: A groove is provided in the end surface of the slider, and the height from the lower end surface of the groove to the upper end surface of the positioning pin is equal to the height of the lower end surface of the armature three-phase copper bar to be tested to the lower end surface of the armature iron core to be tested, and the height from the upper end surface of the groove to the upper end surface of the positioning pin is equal to the height of the lower end surface of the armature three-phase copper bar to be tested to the lower end surface of the armature iron core to be tested, and the distance from the inner end surface of the groove to the axis of the detection through hole is greater than the distance from the center hole of the armature three-phase copper bar to be tested to the outer end surface of the armature three-phase copper bar to be tested by more than 5 mm.

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