CN212963091U

CN212963091U - Motorcycle crankshaft semicircular key groove levelness measuring and positioning device

Info

Publication number: CN212963091U
Application number: CN202021759833.3U
Authority: CN
Inventors: 朱志坤
Original assignee: Jiangmen Longgu Machine Manufacturing Co ltd
Current assignee: Jiangmen Longgu Machine Manufacturing Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-13
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a motorcycle crankshaft semicircle keyway levelness measures positioner, including locating piece and base, the locating piece is connected with the base is perpendicular, and the locating piece terminal surface is equipped with the locating hole that suits with bent axle handle diameter, is equipped with the thimble seat on the base, and the one end that the thimble seat is close to the locating piece is equipped with the thimble, and the size of thimble suits with the shaft hole size of bent axle handle, and the center pin of thimble is the same with the center pin of locating hole, is equipped with the reference column on the base, and the top surface of reference column is at same horizontal plane with the bottom surface of semicircle keyway, the utility model discloses simple structure, it is convenient to measure, and the degree.

Description

Motorcycle crankshaft semicircular key groove levelness measuring and positioning device

Technical Field

The utility model relates to a motorcycle bent axle measuring equipment specifically relates to a motorcycle bent axle semicircle keyway levelness measures positioner.

Background

The production process of motorcycle bent axle is generally for processing out a left side earlier, right crankshaft handle, then connect both through the bent axle, in bent axle handle production and processing process, need to process out the semicircle keyway on the bent axle handle, the levelness of semicircle keyway beats and too greatly can lead to follow-up assembly insecure, even unable assembly scheduling problem, consequently, need measure it, current measuring method generally is for manual direct measurement, efficiency is not high, and the operator takes place the skew easily in the measurement process and leads to measuring result inaccurate, a motorcycle bent axle semicircle keyway levelness measurement positioner is needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a simple structure, it is convenient to measure, and motorcycle crankshaft semicircle keyway levelness that the degree of accuracy is high measures positioner.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the positioning device comprises a positioning block and a base, wherein the positioning block is vertically connected with the base, a positioning hole which is matched with the diameter of a crankshaft handle is formed in the end face of the positioning block, an ejector pin seat is arranged on the base, an ejector pin is arranged at one end, close to the positioning block, of the ejector pin seat, the size of the ejector pin is matched with the size of a shaft hole of the crankshaft handle, the central shaft of the ejector pin is the same as that of the positioning hole, a reference column is arranged on the base, and the top surface of the reference column and the bottom surface of the semicircular key groove are on the same horizontal plane.

The utility model discloses a further improvement still includes the location handle, the diameter of location handle suits with the diameter of bent axle pinhole, one side of locating hole is equipped with the constant head tank, the tip of location handle be equipped with can inlay in reference column in the constant head tank.

The utility model discloses a further improvement, the locating piece middle part is equipped with the mounting groove, be equipped with the mould piece in the mounting groove, the locating hole reaches the constant head tank is located the terminal surface of mould piece, mould piece and mounting groove pass through bolted connection.

The utility model discloses a further improvement, the one end of thimble seat is equipped with the mounting hole, the thimble is located in the mounting hole, be equipped with the spring between thimble and the mounting hole, the other end of thimble seat be equipped with thimble threaded connection's positioning bolt.

The utility model discloses a further improvement, be equipped with the fixing base on the base, the fixing base includes perpendicular horizontal portion and the vertical portion of connecting, the benchmark post passes horizontal portion, the benchmark post passes through the nut to be fixed in horizontal portion.

The utility model discloses a further improvement, the base top is equipped with the guide rail groove, thimble seat bottom be equipped with guide rail groove complex lug, the lug can be followed the guide rail groove and removed, and fixing bolt and base fixed connection are passed through to the both sides of thimble seat.

Adopt above-mentioned technical scheme, before the measurement, adjust the height of measuring apparatu (lever percentage table, commonly known as the jump table), make the measuring needle of measuring apparatu locate benchmark post top surface, the height of measuring needle this moment is benchmark zero point, during the measurement, pass the locating hole with the bent axle handle, the bent axle level setting this moment, turn to one side that corresponds with the benchmark post with the semicircle keyway, bulldoze the bent axle handle, make in the thimble imbeds the shaft hole of bent axle handle, the thimble supports with the bent axle handle, avoid the bent axle handle offset, remove the measuring apparatu, make the measuring needle along the horizontal migration of semicircle key direction, can record the level runout deviation value of semicircle keyway, high convenience and high speed, the measuring result is accurate.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic diagram of the right-side view structure of the present invention;

the following are marked in the figure: 1. positioning blocks; 2. a base; 3. positioning holes; 4. a thimble seat; 5. a thimble; 6. a reference column; 7. a positioning handle; 8. positioning a groove; 9. a positioning column; 10. mounting grooves; 11. a mold block; 12. mounting holes; 13. a spring; 14. positioning the bolt; 15. a fixed seat; 16. a nut; 17. a guide rail groove; 18. a crankshaft shank; 19. semicircular key grooves.

Detailed Description

The embodiment of the utility model is shown in fig. 1-3, a motorcycle crankshaft semicircular key groove levelness measuring and positioning device, including a positioning block 1 and a base 2, the positioning block 1 is vertically connected with the base 2, the end surface of the positioning block 1 is provided with a positioning hole 3 with the diameter suitable for the crankshaft handle 18, the base 2 is provided with a thimble seat 4, one end of the thimble seat 4 close to the positioning block 1 is provided with a thimble 5, the size of the thimble 5 is suitable for the shaft hole size of the crankshaft handle 18, the central shaft of the thimble 5 is the same as the central shaft of the positioning hole 3, the base 2 is provided with a reference column 6, the top surface of the reference column 6 and the bottom surface of the semicircular key groove 19 are on the same horizontal plane, before measurement, the height of a measuring instrument (a lever dial indicator, commonly called a jump indicator) is adjusted, so that the measuring needle of the measuring instrument is arranged on the top surface of the, at the moment, the crankshaft is horizontally arranged, the semicircular key groove 19 is rotated to one side corresponding to the reference column 6, the crank handle 18 is pushed and pressed, the ejector pin 5 is embedded into the shaft hole of the crank handle 18, the ejector pin 5 abuts against the crank handle 18, the crank handle 18 is prevented from being offset, the measuring instrument is moved, the measuring needle is horizontally moved along the semicircular key groove 19, the horizontal runout deviation value of the semicircular key groove 19 can be measured, and the measuring instrument is convenient and fast and accurate in measuring result.

For preventing among the measurement process bent axle handle 18 from rotating, the utility model discloses still include location handle 7, the diameter of location handle 7 suits with the diameter of bent axle pinhole, one side of locating hole 3 is equipped with constant head tank 8, the tip of location handle 7 is equipped with reference column 9 that can inlay in constant head tank 8, location handle 7 passes the bent axle pinhole during measurement, reference column 9 is located in constant head tank 8, make bent axle handle 18 unable rotation, realize its location, 1 middle part of locating piece is equipped with mounting groove 10, be equipped with mould piece 11 in the mounting groove 10, the terminal surface of mould piece 11 is located to locating hole 3 and constant head tank 8, mould piece 11 passes through bolted connection with mounting groove 10, change can be dismantled to mould piece 11 promptly, the diameter of bent axle handle 18 of different specifications differs, consequently, need to change the measurement of bent axle handle 18 of mould piece 11 in order to adapt to different specifications of different specifications.

One end of the thimble seat 4 is provided with a mounting hole 12, the thimble 5 is arranged in the mounting hole 12, a spring 13 is arranged between the thimble 5 and the mounting hole 12, the other end of the thimble seat 4 is provided with a positioning bolt 14 in threaded connection with the thimble 5, the thimble 5 is fixed in the mounting hole 12, the thimble 5 is pressed during measurement and generates elasticity at the same time, so that the thimble 5 keeps abutting against a crank handle 18, the top of the base 2 is provided with a guide rail groove 17, the bottom of the thimble seat 4 is provided with a lug matched with the guide rail groove 17, the lug can move along the guide rail groove 17, two sides of the thimble seat 4 are fixedly connected with the base 2 through fixing bolts, the distance between the thimble seat 4 and the positioning block 1 can be adjusted by loosening the fixing bolts, the measurement of the crank handles 18 with different lengths is met, the base 2 is provided with a fixing seat 15, the fixing seat 15 comprises a transverse part and a vertical part which are vertically connected, the reference post 6 is adjustable according to the standard height of the semicircular keyway 19.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a motorcycle bent axle semicircle keyway levelness measures positioner which characterized in that: including locating piece (1) and base (2), locating piece (1) with base (2) are connected perpendicularly, and locating piece (1) terminal surface is equipped with locating hole (3) that suit with bent axle handle diameter, is equipped with thimble seat (4) on base (2), the one end that thimble seat (4) are close to locating piece (1) is equipped with thimble (5), the size of thimble (5) suits with the shaft hole size of bent axle handle, and the center pin of thimble (5) is the same with the center pin of locating hole (3), is equipped with benchmark post (6) on base (2), the top surface of benchmark post (6) is at same horizontal plane with the bottom surface of semicircle keyway.

2. The motorcycle crankshaft woodruff key groove levelness measuring and positioning device according to claim 1, characterized in that: still include location handle (7), the diameter of location handle (7) suits with the diameter of bent axle pinhole, one side of locating hole (3) is equipped with constant head tank (8), the tip of location handle (7) be equipped with can inlay in reference column (9) in constant head tank (8).

3. The motorcycle crankshaft semi-circular key groove levelness measuring and positioning device according to claim 2, characterized in that: locating piece (1) middle part is equipped with mounting groove (10), be equipped with mould piece (11) in mounting groove (10), locating hole (3) and constant head tank (8) are located the terminal surface of mould piece (11), mould piece (11) pass through bolted connection with mounting groove (10).

4. The motorcycle crankshaft woodruff key groove levelness measuring and positioning device according to claim 1, characterized in that: the one end of thimble seat (4) is equipped with mounting hole (12), thimble (5) are located in mounting hole (12), be equipped with spring (13) between thimble (5) and mounting hole (12), the other end of thimble seat (4) is equipped with positioning bolt (14) with thimble (5) threaded connection.

5. The motorcycle crankshaft woodruff key groove levelness measuring and positioning device according to claim 1, characterized in that: be equipped with fixing base (15) on base (2), fixing base (15) are including the horizontal portion and the vertical portion of perpendicular connection, benchmark post (6) pass horizontal portion, benchmark post (6) are fixed on horizontal portion through nut (16).

6. The motorcycle crankshaft woodruff key groove levelness measuring and positioning device according to claim 1, characterized in that: base (2) top is equipped with guide rail groove (17), thimble seat (4) bottom be equipped with guide rail groove (17) complex lug, guide rail groove (17) removal can be followed to the lug, and fixing bolt and base (2) fixed connection are passed through to the both sides of thimble seat (4).