CN211490789U

CN211490789U - Clamping tool for flywheel end face polishing

Info

Publication number: CN211490789U
Application number: CN201921780799.5U
Authority: CN
Inventors: 潘伟源
Original assignee: Zhejiang Hengchun Machinery Co ltd
Current assignee: Zhejiang Hengchun Machinery Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-09-15
Anticipated expiration: 2029-10-22

Abstract

The utility model relates to the field of flywheel processing, in particular to a clamping tool for flywheel end face polishing, which comprises a disc base, three clamping arm mechanisms and a gravity pressing mechanism, wherein a cylindrical groove for accommodating the gravity pressing mechanism is arranged at the center of the disc base, the three clamping arm mechanisms are uniformly distributed at the outer side of the disc base along the circumferential direction, the middle part of each clamping arm mechanism is hinged with the outer edge of the disc base, the gravity pressing mechanism comprises a positioning column, a spring and a hinge ring, the positioning column is vertically and fixedly arranged at the center of the cylindrical groove, the hinge ring is movably sleeved at the outer side of the positioning column, the spring is sleeved at the outer side of the positioning column and upwards collides with the hinge ring, the lower end of each clamping arm mechanism is hinged with the hinge ring, the top of the hinge ring is sleeved with a tray for supporting a flywheel, the utility model discloses a clamping tool for flywheel end face polishing, the method has the advantages of simple operation, high efficiency and the like.

Description

Clamping tool for flywheel end face polishing

Technical Field

The utility model relates to a flywheel processing field, concretely relates to a centre gripping frock for flywheel terminal surface is polished.

Background

Flywheel (flying wheel), a disc-shaped part with a high moment of inertia, which acts as an energy store. For a four-stroke engine, work is done every four piston strokes, i.e. only the work stroke works, and the three strokes of exhaust, intake and compression all consume work. Therefore, the torque output by the crankshaft is periodically changed, and the rotating speed of the crankshaft is unstable. To improve this situation, a flywheel is provided at the rear end of the crankshaft. Flywheels have a large moment of inertia. Since the work done by each cylinder of the engine is not continuous, the engine speed also varies. When the engine speed is increased, the kinetic energy of the flywheel is increased to store the energy, and when the engine speed is reduced, the kinetic energy of the flywheel is reduced to release the energy. Flywheels may be used to reduce speed fluctuations during engine operation.

In the process of flywheel production and processing, the end face of the flywheel needs to be polished, flywheel clamps in a plurality of processing workshops are cumbersome to use, the flywheel is only arranged on the clamp, the flywheel needs to be locked on the clamp manually through a wrench, time and labor are wasted, and efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a centre gripping frock for flywheel terminal surface is polished.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a centre gripping frock for flywheel terminal surface is polished, including the disc base, three clamping arm mechanism and a gravity push down the mechanism, the center department of disc base is equipped with the cylinder groove that is used for holding gravity push down the mechanism, three clamping arm mechanism is along circumferencial direction evenly distributed in the outside of disc base, every clamping arm mechanism's middle part all is articulated with the outer fringe department of disc base, gravity push down the mechanism and includes the reference column, spring and hinge ring, the reference column is vertical fixed the setting in the center department of cylinder groove, the outside of reference column is located to the hinge ring movable sleeve, the outside of reference column is located and the hinge ring of upwards conflicting to the spring housing, every clamping arm mechanism's lower extreme all articulates with hinge ring, hinge ring's top cover is equipped with a tray that is used for supporting flywheel.

As an optimal scheme of a clamping tool for flywheel end face polishing, a positioning column is fixedly arranged at the center of the bottom of a cylindrical groove, the positioning column, the cylindrical groove and a disc base are coaxially arranged, a column sleeve is fixedly arranged at the top of a hinged ring, a spring is positioned below the hinged sleeve, and the upper end and the lower end of the spring respectively abut against the bottom of the hinged sleeve and the bottom of the cylindrical groove.

As an optimal scheme of a clamping tool for flywheel end face polishing, a pin hole is formed in the upper end of the top of a positioning column, a first strip-shaped through hole which is transversely communicated is formed in the cylindrical wall of a column sleeve, a first limiting shaft is inserted into the pin hole, and two ends of the limiting shaft respectively penetrate through the first strip-shaped through hole from inside to outside.

As an optimal scheme of a centre gripping frock for flywheel terminal surface is polished, every clamping arm mechanism all includes the support arm, T type clamp splice and fixed axle, T type clamp splice articulates and sets up in the upper end of support arm, the fixed axle is fixed to be set up in the lower extreme of support arm, and the fixed axle is perpendicular with the support arm, the middle part of support arm is articulated with the outer fringe of disc base, the one end and the articulated cover swing joint of support arm are kept away from to the fixed axle, evenly be provided with three rectangle through-hole that is used for supplying the fixed axle to pass along the circumferencial direction on the cylinder wall of disc base, the height of rectangle through-hole is greater than the diameter of fixed axle.

As an optimal selection scheme for a centre gripping frock that is used for flywheel terminal surface to polish, the fixed spacing axle of a horizontally second that is equipped with of one end that the support arm was kept away from to the fixed axle, the outside of articulated ring evenly is equipped with three first articulated seats of group along the circumferencial direction, all is provided with the second bar through-hole that transversely link up on every first articulated seat of group, and the both ends of the spacing axle of second are all from inside to outside and pass corresponding second bar through-hole.

As an optimal scheme of a centre gripping frock for flywheel terminal surface is polished, the top periphery department of disc base is equipped with the articulated seat of three groups of second, and the articulated seat of three groups of second evenly distributed along the circumferencial direction, and the middle part of every support arm all articulates with the articulated seat of the second that corresponds.

As an optimal scheme of a clamping tool for flywheel end face polishing, the top of the supporting arm is provided with a hinge groove for hinging the T-shaped clamping block, one side of the T-shaped clamping block, which is in contact with the flywheel, is of a concave arc surface structure, and a plurality of vertical teeth are arranged on the concave arc surface structure.

As an optimal selection scheme that is used for flywheel terminal surface to polish's centre gripping frock, the bottom of tray sets up on the column casing through a cylinder cover shell activity, and the bottom of cylinder cover shell is equipped with and transversely link up and the bar breach that upwards extends, and the tip of first spacing axle is from inside to outside passes the bar breach.

The utility model has the advantages that: the utility model discloses a centre gripping frock for flywheel terminal surface is polished drives three clamp piece simultaneously and moves to heart through the dead weight of flywheel itself to join in marriage and press from both sides the perpendicular tooth on the clamp piece and lock the flywheel at the tray top in order to supply follow-up processing of polishing, compare in traditional anchor clamps, have easy operation and efficient advantage such as height.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

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

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a cross-sectional view taken along line a-a of fig. 3.

Fig. 5 is an exploded perspective view of the present invention.

In the figure: the disc base 1, the cylinder groove 2, the positioning column 3, the spring 4, the hinge ring 5, the tray 6, the column sleeve 7, the pin hole 8, the first strip-shaped through hole 9, the first limiting shaft 10, the supporting arm 11, the T-shaped clamping block 12, the fixing shaft 13, the rectangular through hole 14, the second limiting shaft 15, the first hinge seat 16, the second strip-shaped through hole 17, the second hinge seat 18, the hinge groove 19, the vertical tooth 20, the cylinder shell 21, the strip-shaped notch 22 and the flywheel 23.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, a centre gripping frock for flywheel terminal surface is polished, including disc base 1, three clamping arm mechanism and a gravity push down the mechanism, disc base 1's center department is equipped with the cylinder groove 2 that is used for holding the gravity push down the mechanism, three clamping arm mechanism is along circumferencial direction evenly distributed in disc base 1's the outside, every clamping arm mechanism's middle part all is articulated with disc base 1's outer fringe department, the gravity push down the mechanism includes reference column 3, spring 4 and hinge ring 5, reference column 3 is vertical fixed setting in the center department of cylinder groove 2, hinge ring 5 movable sleeve locates the outside of reference column 3, the outside of reference column 3 is located and upwards contradict hinge ring 5 to spring 4 cover, every clamping arm mechanism's lower extreme all articulates with hinge ring 5, hinge ring 5's top cover is equipped with a tray 6 that is used for bearing flywheel 23. During the use, the flywheel 23 is arranged on the tray 6, the hinged ring 5 is pressed down through the tray 6 under the self-weight action of the flywheel 23, and in the descending process of the hinged ring 5, the lower ends of the three clamping arm mechanisms are pushed outwards along the radial direction of the disc base 1, so that the upper ends of the three clamping arm mechanisms are simultaneously drawn close along the radial direction of the disc base 1, and the flywheel 23 on the tray 6 is clamped together.

Reference column 3 is fixed to be set up in the tank bottom center department of cylinder groove 2 to reference column 3, cylinder groove 2 and the coaxial setting of 1 three of disc base, the fixed column cover 7 that is provided with in top of articulated ring 5, spring 4 are located the below of hinge sleeve, and the upper and lower end of spring 4 is contradicted the bottom of hinge sleeve and the tank bottom of cylinder groove 2 respectively. During the descent of the flywheel 23 through the tray 6, the hinge sleeve presses the spring 4 downwards, so that the spring 4 has an upward return spring force, and the spring 4 can jack the hinge ring 5 again to return the tray 6 when the flywheel 23 is removed from the tray 6.

The upper end of the top of the positioning column 3 is provided with a pin hole 8, the cylindrical wall of the column sleeve 7 is provided with a first strip-shaped through hole 9 which is transversely communicated, a first limiting shaft 10 is inserted into the pin hole 8, and two ends of the limiting shaft respectively penetrate through the first strip-shaped through hole 9 from inside to outside. The positions of the upper end and the lower end of the first strip-shaped through hole 9 are the upper limit position and the lower limit position of the hinge sleeve in the lifting process, the lower limit position ensures that the hinge ring 5 cannot excessively extrude the spring 4 to damage the spring 4, and the upper limit position ensures that the hinge sleeve cannot be separated from the positioning column 3.

Every clamp arm mechanism all includes support arm 11, T type clamp splice 12 and fixed axle 13, T type clamp splice 12 articulates and sets up in the upper end of support arm 11, fixed axle 13 is fixed to be set up in the lower extreme of support arm 11, and fixed axle 13 is perpendicular with support arm 11, the middle part of support arm 11 is articulated with the outer fringe of disc base 1, the one end and the articulated cover swing joint of support arm 11 are kept away from to fixed axle 13, evenly be provided with three rectangle through-hole 14 that are used for supplying fixed axle 13 to pass along the circumferencial direction on the cylinder wall of disc base 1, the height of rectangle through-hole 14 is greater than the diameter of fixed axle 13, three rectangle through-hole 14 is located the lateral wall. The hinged ring 5 is pressed against the fixed shaft 13 along the radial direction of the disc base 1 in the process of descending, and the middle part of the supporting arm 11 is hinged with the outer edge of the disc base 1, so that the upper end of the supporting arm 11 carries the T-shaped clamping block 12 to move inwards along the radial direction of the disc base 1 until the upper end contacts the outer edge of the flywheel 23 and clamps the flywheel 23.

The fixed axle 13 is kept away from the fixed spacing axle 15 of a horizontally second that is equipped with of one end of support arm 11, and the outside of articulated ring 5 evenly is equipped with three first articulated seats 16 of group along the circumferencial direction, all is provided with the second bar through-hole 17 that transversely link up on every first articulated seat 16 of group, and the both ends of the spacing axle 15 of second are all from inside to outside to pass corresponding second bar through-hole 17. With the descending of the hinge ring 5, the fixed shaft 13 will be offset a distance in the radial direction of the disc base 1, and the end of the fixed shaft 13 can move along the radial direction of the disc base 1 by the second limiting shaft 15 sliding in the second strip-shaped through hole 17.

The top periphery of disc base 1 is equipped with the articulated seat 18 of three groups of second, and the articulated seat 18 of three groups of second evenly distributed along the circumferencial direction, and the middle part of every support arm 11 all articulates with the articulated seat 18 of second that corresponds. The middle part of the support arm 11 is hinged and its bottom part moves outwards while its top part moves inwards, thus being able to approach and hold the flywheel 23.

The top of the supporting arm 11 is provided with a hinge slot 19 for the T-shaped clamping block 12 to hinge, one side of the T-shaped clamping block 12 contacting with the flywheel 23 is of a concave arc structure, and the concave arc structure is provided with a plurality of vertical teeth 20. The vertical teeth 20 on the T-shaped fixture block can be tightly attached to the toothed outer edge of the flywheel 23, so that the flywheel 23 can be firmly locked.

The bottom of tray 6 sets up on post cover 7 through a cylindrical sleeve 7 shell activity, and the bottom of cylindrical sleeve 7 shell is equipped with transversely to link up and upwards extending's bar breach 22, and the tip of first spacing axle 10 passes bar breach 22 from inside to outside. The first limiting shaft 10 is matched with the strip-shaped notch 22 to effectively prevent the tray 6 from rotating.

The working principle is as follows: when the flywheel clamping device is used, the flywheel 23 is placed on the tray 6, the hinged ring 5 is pressed downwards through the tray 6 under the action of the dead weight of the flywheel 23, in the descending process of the hinged ring 5, the hinged ring is abutted against the fixed shaft 13 outwards along the radial direction of the disc base 1 in the descending process, the middle part of the supporting arm 11 is hinged with the outer edge of the disc base 1, therefore, the upper end of the supporting arm 11 can drive the T-shaped clamping block 12 to move inwards along the radial direction of the disc base 1 until the T-shaped clamping block contacts with the outer edge of the flywheel 23 and clamps the flywheel 23, the vertical teeth 20 on the T-shaped clamping block can be tightly attached to the toothed outer edge of the flywheel 23, so that the flywheel 23 can be firmly locked, after the flywheel 23 is locked on the tray 6 through the dead weight, the grinding device starts to grind the top section of the flywheel 23, the clamping tool can be additionally arranged on, in the process that the flywheel 23 drives the hinge sleeve to descend through the tray 6, the hinge sleeve downwards presses the spring 4, so that the spring 4 has an upward return elastic force, and when the ground flywheel 23 is taken away from the tray 6, the spring 4 can jack the hinge ring 5 again to return the tray 6.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. A clamping tool for polishing the end face of a flywheel is characterized by comprising a disc base (1), three clamping arm mechanisms and a gravity pressing mechanism, wherein a cylindrical groove (2) for accommodating the gravity pressing mechanism is formed in the center of the disc base (1), the three clamping arm mechanisms are uniformly distributed on the outer side of the disc base (1) along the circumferential direction, the middle of each clamping arm mechanism is hinged to the outer edge of the disc base (1), the gravity pressing mechanism comprises a positioning column (3), a spring (4) and a hinge ring (5), the positioning column (3) is vertically and fixedly arranged at the center of the cylindrical groove (2), the hinge ring (5) is movably sleeved on the outer side of the positioning column (3), the spring (4) is sleeved on the outer side of the positioning column (3) and upwards abuts against the hinge ring (5), the lower end of each clamping arm mechanism is hinged to the hinge ring (5), the top of the hinged ring (5) is sleeved with a tray (6) used for supporting the flywheel (23).

2. The clamping tool for flywheel end face grinding as claimed in claim 1, wherein the positioning column (3) is fixedly arranged at the center of the bottom of the cylindrical groove (2), the positioning column (3), the cylindrical groove (2) and the disc base (1) are coaxially arranged, the top of the hinge ring (5) is fixedly provided with a column sleeve (7), the spring (4) is positioned below the hinge sleeve, and the upper end and the lower end of the spring (4) respectively abut against the bottom of the hinge sleeve and the bottom of the cylindrical groove (2).

3. The clamping tool for flywheel end face grinding as claimed in claim 2, wherein a pin hole (8) is formed in the upper end of the top of the positioning column (3), a first through-hole (9) which is transversely penetrated is formed in the cylindrical wall of the column sleeve (7), a first limiting shaft (10) is inserted into the pin hole (8), and two ends of the limiting shaft respectively penetrate through the first through-hole (9) from inside to outside.

4. The clamping tool for flywheel end face grinding as claimed in claim 1, wherein each clamping arm mechanism comprises a supporting arm (11), a T-shaped clamping block (12) and a fixing shaft (13), the T-shaped clamping block (12) is hinged to the upper end of the supporting arm (11), the fixing shaft (13) is fixedly arranged at the lower end of the supporting arm (11), the fixing shaft (13) is perpendicular to the supporting arm (11), the middle of the supporting arm (11) is hinged to the outer edge of the disc base (1), one end, far away from the supporting arm (11), of the fixing shaft (13) is movably connected with the hinged sleeve, three rectangular through holes (14) for the fixing shaft (13) to penetrate through are uniformly formed in the cylindrical wall of the disc base (1) in the circumferential direction, the height of each rectangular through hole (14) is larger than the diameter of the corresponding fixing shaft (13), and the three rectangular through holes (14) are located in the side wall of the cylindrical groove (2).

5. The clamping tool for flywheel end face grinding according to claim 4, characterized in that one end of the fixing shaft (13) far away from the supporting arm (11) is fixedly provided with a horizontal second limiting shaft (15), three groups of first hinging seats (16) are uniformly arranged on the outer side of the hinging ring (5) along the circumferential direction, each group of first hinging seat (16) is provided with a second strip-shaped through hole (17) which is transversely penetrated through, and two ends of the second limiting shaft (15) penetrate through the corresponding second strip-shaped through holes (17) from inside to outside.

6. The clamping tool for flywheel end face grinding as claimed in claim 4, wherein three groups of second hinging seats (18) are arranged at the outer edge of the top of the disc base (1), the three groups of second hinging seats (18) are uniformly distributed along the circumferential direction, and the middle part of each supporting arm (11) is hinged to the corresponding second hinging seat (18).

7. The clamping tool for grinding the end face of the flywheel as claimed in claim 4, wherein the top of the supporting arm (11) is provided with a hinge groove (19) for the T-shaped clamping block (12) to hinge, one side of the T-shaped clamping block (12) contacting with the flywheel (23) is of a concave arc structure, and the concave arc structure is provided with a plurality of vertical teeth (20).

8. The clamping tool for flywheel end face grinding as claimed in claim 3, wherein the bottom of the tray (6) is movably arranged on the column sleeve (7) through a cylindrical sleeve (7) shell, a strip-shaped notch (22) which transversely penetrates through and extends upwards is formed in the bottom of the cylindrical sleeve (7) shell, and the end portion of the first limiting shaft (10) penetrates through the strip-shaped notch (22) from inside to outside.