CN217442530U

CN217442530U - Motor rear end cover center distance detection device

Info

Publication number: CN217442530U
Application number: CN202220968132.3U
Authority: CN
Inventors: 张新庆
Original assignee: Chengdu Huachuan Electric Parts Co Ltd
Current assignee: Chengdu Huachuan Electric Parts Co Ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-09-16
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a motor rear end cover center distance detection device, which comprises a bottom plate, a positioning seat, a measuring disc, a measurer and a calibration gauge; the positioning seat can be arranged on the bottom plate in a translation mode, the positioning surface is parallel to the top surface of the bottom plate, and the positioning surface is provided with a locking mechanism and two positioning pins which respectively correspond to the two mounting holes of the rear end cover of the motor; a positioning shaft matched with a bearing hole of the rear end cover of the motor is vertically fixed in the center of the measuring disc; the measurer is arranged above the translation path of the positioning seat in a hanging manner; the calibrating gauge is arranged on the bottom plate, and when the positioning shaft of the measuring disc is inserted into the bearing hole of the rear end cover of the motor, the highest point of the calibrating gauge is flush with the highest point of the measuring disc. The utility model ensures that each measuring standard of the center distance of the rear end cover of the motor is stable, and realizes the accurate measurement of the positioning data by utilizing the cooperation of the measurer, the calibration gauge and the measuring disc; the utility model is simple in operation, detect accurate, detection efficiency is high, can be applicable to and carry out the big batch detection of motor rear end cap.

Description

Motor rear end cover center distance detection device

Technical Field

The utility model belongs to the technical field of motor production assembly technique and specifically relates to a motor rear end cap centre-to-centre spacing detection device.

Background

When the quality inspection is carried out on the rear end cover of the motor after production, the distance from the mounting lug surface on the rear end cover of the motor to the central line of the workpiece shaft must be measured. As shown in fig. 1 and fig. 2, the motor rear end cover 100 has two mounting holes 120 and a bearing hole 110, and a distance between an end surface of the mounting hole 120 and a center line of the bearing hole 110 is a center distance L of the motor rear end cover to be detected. Because the mounting hole of motor rear end cap is in on the plane of difference with the dead eye, the utensil can't detect to conventional examining, and if adopt the function gauge to measure, the processing degree of difficulty of gauge is great, and measurement accuracy is not high. At present, manufacturers usually adopt a three-coordinate measuring machine for detection, but the three-coordinate measuring machine must be placed in a machine room with a specific environment temperature, special measuring personnel needs to be cultured for operation, the measuring time is long, the measuring efficiency is low, the cost is high, and the method is not suitable for batch detection of the rear end covers of the motors.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the motor rear end cover center distance detection device is convenient to operate.

For solving the technical problem the utility model discloses the technical scheme who adopts is: the center distance detection device for the rear end cover of the motor comprises a rear end cover of the motor, wherein a bearing hole and two mounting holes are formed in the rear end cover of the motor, the projections of the center line of the bearing hole and the center line of the mounting holes on a plane are perpendicular to each other, and the center distance detection device comprises a bottom plate, a positioning seat, a measuring disc, a measurer and a calibration gauge; the positioning seat can be arranged on the bottom plate in a translation mode, the top surface of the positioning seat is a positioning surface, the positioning surface is parallel to the top surface of the bottom plate, and a locking mechanism and two positioning pins which respectively correspond to the two mounting holes of the rear end cover of the motor are arranged on the positioning surface; a positioning shaft matched with a bearing hole of the rear end cover of the motor is vertically fixed in the center of the measuring disc; the measurer is arranged above the translation path of the positioning seat in a hanging manner; the calibrating gauge is arranged on the bottom plate, and when the positioning shaft of the measuring disc is inserted into the bearing hole of the rear end cover of the motor, the highest point of the calibrating gauge is flush with the highest point of the measuring disc.

Further, the method comprises the following steps: the locking mechanism comprises a compression screw and a compression block, and a screw hole in threaded fit with the compression screw is formed in the positioning surface of the positioning seat; the pressing block is provided with a through hole for the pressing screw to pass through.

Further, the method comprises the following steps: the clamp is characterized by further comprising a gasket, wherein the gasket is sleeved on the compression screw and is positioned between the compression screw and the compression block.

Further, the method comprises the following steps: the gasket is a spherical gasket, and the upper hole opening of the through hole is an arc-surface opening matched with the spherical surface of the spherical gasket.

Further, the method comprises the following steps: the pressing block is further provided with a notch, the notch extends from the edge of the pressing block to be communicated with the through hole, and the width of the notch is matched with the aperture of the through hole.

Further, the method comprises the following steps: and a handle shaft is fixed on the end face of the measuring disc, which is not provided with the positioning shaft, and anti-skid grains are arranged on the peripheral surface of the handle shaft.

Further, the method comprises the following steps: the anti-slip lines on the handle shaft are grid lines.

Further, the method comprises the following steps: and chamfering the end of the positioning shaft on the measuring disc.

Further, the method comprises the following steps: the two positioning pins on the positioning surface are respectively a round positioning pin and a diamond positioning pin.

Further, the method comprises the following steps: the measurer is arranged in a suspended mode through the mounting support.

The utility model has the advantages that: the utility model fixes and positions the rear end cover of the motor through the matching of the locking mechanism and the measuring disc, ensures the stability of each measuring standard of the center distance of the rear end cover of the motor, and realizes the accurate measurement of the positioning data by utilizing the matching of the measuring device, the calibration gauge and the measuring disc; the utility model is simple in operation, detect accurate, detection efficiency is high, can be applicable to and carry out the big batch detection of motor rear end cap.

Drawings

FIG. 1 is a top cross-sectional view of a rear end cap of a motor;

FIG. 2 is a test cross-sectional view of a rear end cap of the motor;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is an isometric view of the positioning socket;

FIG. 5 is an isometric view of the measuring disk;

FIG. 6 is an isometric view of a compact;

labeled as: 100-motor rear end cover, 110-bearing hole, 120-mounting hole, 200-bottom plate, 300-positioning seat, 310-positioning surface, 311-screw hole, 320-positioning pin, 410-compression screw, 420-compression block, 421-through hole, 422-notch, 430-gasket, 500-measuring disc, 510-positioning shaft, 520-handle shaft, 600-measurer, 700-calibration gauge, 800-mounting bracket, L-motor rear end cover center distance, H1-positioning seat height value, H2-calibration gauge height value and R-measuring disc radius value.

Detailed Description

In order to facilitate understanding of the present invention, the following description is further provided with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "front", "back", "left", "right", "upper", "lower", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the device or component to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the motor rear end cover 100 is provided with a bearing hole 110 and two mounting holes 120, and projections of a center line of the bearing hole 110 and a center line of the mounting hole 120 on a plane are perpendicular to each other. As shown in fig. 3, the utility model discloses a motor rear end cover centre-to-centre spacing detection device includes bottom plate 200, positioning seat 300, locking mechanism, measuring disc 500, caliber 600 and proofreading and correct rule 700.

The positioning seat 300 is disposed on the bottom plate 200 and can be translated on the bottom plate 200, and in order to position the motor rear end cover 100, the shape of the positioning seat 300 also needs to be matched with the motor rear end cover 100, so that the longitudinal section of the positioning seat 300 is "L" shaped, and the surface of the positioning seat 300 contacting the bottom plate 200 and the surface of the positioning seat 300 contacting the motor rear end cover 100 are both planes. The top surface of the positioning seat 300 is a positioning surface 310, a locking mechanism and a positioning pin 320 are arranged on the positioning surface 310, the locking mechanism is used for fixing the motor rear end cover 100, and the mounting hole 120 of the motor rear end cover 100 is tightly pressed on the positioning surface 310 through the locking mechanism; the positioning pins 320 are used for positioning the motor rear end cover 100, and the positioning pins 320 are matched with the mounting holes 120 of the motor rear end cover 100, so that the number of the positioning pins 320 is consistent with and in one-to-one correspondence with the number of the mounting holes 120 of the motor rear end cover 100, and when the motor rear end cover 100 is fixed, the positioning pins 320 are respectively inserted into the two mounting holes 120 on the motor rear end cover 100; the two positioning pins 320 on the positioning surface 310 may be a circular positioning pin and a diamond positioning pin, respectively, to improve the reliability of positioning.

As shown in fig. 5, the measuring disc 500 is a circular disc structure matched with the end socket surface of the motor rear end cover 100, and a positioning shaft 510 matched with the bearing hole 110 of the motor rear end cover 100 is vertically fixed at the center of the measuring disc 500. As shown in fig. 3, after the motor rear end cover 100 is fixed on the positioning seat 300 by using the locking mechanism, the positioning shaft 510 of the measuring disc 500 is aligned with and inserted into the bearing hole 110 of the motor rear end cover 100, so that the circular ring of the measuring disc 500 wraps the end of the motor rear end cover 100, the inner wall of the circular ring of the measuring disc 500 is tightly attached to the circumferential surface of the stop surface of the motor rear end cover 100, and the measuring disc 500 is integrally kept vertical, thereby ensuring that the center line of the measuring disc 500 coincides with the center line of the bearing hole 110 on the motor rear end cover 100 and is parallel to the bottom plate 200.

As shown in fig. 3, the measuring unit 600 is suspended on the base plate 200, the measuring unit 600 is located above the translational path of the positioning base 300, and the highest point height value of the measuring plate 500 and the highest point height value of the calibration gauge 700 can be measured by the measuring unit 600. The measurer 600 may be fixed by a mounting bracket 800, the mounting bracket 800 is vertically disposed and the bottom thereof is fixed to the base plate 200, and the measurer 600 is mounted by a support arm coupled to the upper portion of the mounting bracket 800. The master gauge 700 is disposed on the base plate 200, and when the measuring disc 500 positions the motor rear end cover 100, a highest point of the master gauge 700 is flush with a highest point of the measuring disc 500.

Adopt the utility model discloses a motor rear end cap centre-to-centre spacing detection device detects time measuring to motor rear end cap 100's centre-to-centre spacing, utilizes locking mechanism to fix motor rear end cap 100 on positioning seat 300, aligns motor rear end cap 100's dead eye 110 and inserts with positioning shaft 510 of measuring disc 500, adjusts locking mechanism and makes motor rear end cap 100 and each contact surface subsides tightly in order to guarantee that the measuring basis is stable with positioning seat 300. Then, the theoretical value of the center distance is calibrated by using the height value of the highest point of the calibration gauge 700, and the theoretical value L of the center distance of the rear end cover is equal to the difference between the sum of the radius value R of the measuring disc and the height value H1 of the positioning seat and the height value H2 of the calibration gauge. The standard of the measurer 600 is zero-matched, the measuring disc 500 is contacted with the measurer 600 by translating the positioning seat 300, a high-point value of the measuring disc 500 is obtained, and the offset of the value relative to the zero point is the deviation value of the center distance, so that the measured value of the center distance of the rear end cover of the motor can be converted; and judging whether the rear end cover 100 of the motor is qualified or not according to the difference value between the measured value and the theoretical value L.

As shown in fig. 3, 4 and 6, the locking mechanism used in the present invention includes a pressing screw 410 and a pressing block 420, and the pressing block 420 is provided with a through hole 421 through which the pressing screw 410 can pass; meanwhile, a screw hole 311 is formed on the positioning surface 310 of the positioning seat 300, and the screw hole 311 is in threaded fit with the compression screw 410. When the motor rear end cover 100 is fixed, the holding-down block 420 is held down on the end face of the mounting hole 120 of the motor rear end cover 100 by the locking screw 410. In order to further improve the fixed effect to motor rear end cap 100, make the terminal surface of mounting hole 120 can laminate with locating surface 310 zero clearance, the utility model discloses still increased packing ring 430, packing ring 430 cover is established on housing screw 410, and packing ring 430 is compressed tightly between housing screw 410 and compact heap 420 during the fixing. In order to adjust the high ends of the two sides of the pressing block 420 better, the gasket 430 may be a spherical gasket, and the structure of the through hole 421 on the pressing block 420 is optimized, and the upper hole of the through hole 421 is set to be a cambered surface matched with the spherical surface of the spherical gasket 430, so that the spherical surface of the spherical gasket is matched with the cambered surface of the through hole 421.

Further, as shown in fig. 6, the utility model discloses still increased notch 422 on compact heap 420, notch 422 extends to from compact heap 420's limit portion and is linked together with through-hole 421, and notch 422's width and through-hole 421's aperture phase-match. The installation of the pressing block 420 can be facilitated by adding the notch 422, and the quick clamping of the motor rear end cover 100 is realized.

As shown in fig. 5, a handle shaft 520 is fixed to an end surface of the measurement dial 500 where the positioning shaft 510 is not provided, so that the operator can easily grip the handle shaft 520 to operate it. Anti-skid lines can be arranged on the outer peripheral surface of the handle shaft 520 to improve the friction force, so that a detector can conveniently and quickly assemble and disassemble the measuring disc 500; the antiskid lines can adopt grid lines. In addition, the end of the positioning shaft 510 on the measuring disc 500 may be chamfered to form a taper at the end of the positioning shaft 510, so that a gapless fit between the positioning shaft 510 and the bearing hole 110 can be achieved.

Claims

1. Motor rear end cap centre-to-centre spacing detection device, including motor rear end cap (100), be equipped with dead eye (110) and two mounting holes (120) on motor rear end cap (100), the central line of dead eye (110) and the projection mutually perpendicular on the plane of the central line of mounting hole (120), its characterized in that: the device comprises a bottom plate (200), a positioning seat (300), a measuring disc (500), a measurer (600) and a calibration gauge (700); the positioning seat (300) can be arranged on the bottom plate (200) in a translation mode, the top surface of the positioning seat (300) is a positioning surface (310), the positioning surface (310) is parallel to the top surface of the bottom plate (200), and a locking mechanism and two positioning pins (320) which respectively correspond to the two mounting holes (120) of the motor rear end cover (100) are arranged on the positioning surface (310); a positioning shaft (510) matched with a bearing hole (110) of the motor rear end cover (100) is vertically fixed at the center of the measuring disc (500); the measurer (600) is arranged above the translation path of the positioning seat (300) in a suspended mode; the calibrating gauge (700) is arranged on the bottom plate (200), and when the positioning shaft (510) of the measuring disc (500) is inserted into the bearing hole (110) of the motor rear end cover (100), the highest point of the calibrating gauge (700) is flush with the highest point of the measuring disc (500).

2. The motor rear end cover center distance detection device according to claim 1, characterized in that: the locking mechanism comprises a compression screw (410) and a compression block (420), and a screw hole (311) in threaded fit with the compression screw (410) is formed in a positioning surface (310) of the positioning seat (300); the pressing block (420) is provided with a through hole (421) through which the pressing screw (410) can pass.

3. The motor rear end cover center distance detection device according to claim 2, characterized in that: the clamp is characterized by further comprising a gasket (430), wherein the gasket (430) is sleeved on the compression screw (410) and is positioned between the compression screw (410) and the compression block (420).

4. The motor rear end cover center distance detection device according to claim 3, characterized in that: the gasket (430) is a spherical gasket, and the upper hole of the through hole (421) is an arc-shaped hole matched with the spherical surface of the spherical gasket (430).

5. The motor rear end cover center distance detection device according to claim 2, characterized in that: still be equipped with notch (422) on compact heap (420), notch (422) extend to from the limit portion of compact heap (420) and are linked together with through-hole (421), and the width of notch (422) and the aperture phase-match of through-hole (421).

6. The motor rear end cover center distance detection device according to claim 1, characterized in that: the measuring disc (500) is fixed with a handle shaft (520) on the end face where the positioning shaft (510) is not arranged, and anti-skid grains are arranged on the outer peripheral surface of the handle shaft (520).

7. The motor rear end cover center distance detection device according to claim 6, characterized in that: the anti-skid grains on the handle shaft (520) are grid grains.

8. The motor rear end cover center distance detection device according to claim 1, characterized in that: and chamfering the end of the positioning shaft (510) on the measuring disc (500).

9. The motor rear end cover center distance detection device according to claim 1, characterized in that: the two positioning pins (320) on the positioning surface (310) are respectively a round positioning pin and a diamond positioning pin.

10. The motor rear end cover center distance detection device according to claim 1, characterized in that: the measurer (600) is arranged in a suspended mode through the mounting bracket (800).