CN217728235U

CN217728235U - Curved surface grinding tool

Info

Publication number: CN217728235U
Application number: CN202221567127.8U
Authority: CN
Inventors: 王光辉; 杨君宝; 卢旭东; 姜月秋; 李如玉
Original assignee: Shenyang Ligong University
Current assignee: Shenyang Ligong University
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-11-04
Anticipated expiration: 2032-06-22

Abstract

The utility model relates to the technical field of machining, specifically be a curved surface grinding frock, including the base, go up the roof and be used for connecting base and last roof and along the stand that vertical direction distributes, be equipped with the elevating platform between base and the last roof, sliding fit between elevating platform and the stand runs through on the elevating platform and has seted up the expansion joint, the top surface of elevating platform just is located the expansion joint department and is equipped with the installing sleeve, the inside activity of installing sleeve is equipped with centering top, the inside of installing sleeve is fixed and is set up actuating mechanism for the reciprocal elevating movement is to the top vertical direction of edge of drive centering. The utility model discloses utilize the common centre gripping work piece of centering top and microscope carrier, and because the reciprocal lift of vertical direction can be followed to the centering top, consequently also can drive the work piece and be reciprocating motion along vertical direction when drive work piece pivoted to help improving the quality of polishing.

Description

Curved surface grinding tool

Technical Field

The utility model relates to the technical field of machining, specifically be a curved surface grinding frock.

Background

Currently, the grinding of the outer surface of a cylindrical workpiece is mainly performed by a grinding machine. In the specific operation process, a workpiece is clamped by a clamping mechanism on the grinding machine, the workpiece is driven to rotate around a central shaft, and then a grinding wheel or a cutter is gradually close to the workpiece, so that the grinding effect is achieved. However, since the workpiece rotates around its own central axis, if the grinding wheel is stationary during the grinding process, a plurality of grinding traces distributed along the circumferential direction are left on the outer surface of the workpiece after the grinding is finished, which affects the grinding quality and the beauty.

As shown in fig. 1, for an existing cylindrical workpiece, one surface of the workpiece has a square embedded groove, and when the workpiece is polished by an existing polishing device, in order to avoid a circle of polishing traces left on the outer surface of the workpiece, the polishing wheel needs to be driven to move back and forth along the axial direction of the workpiece, so that operation steps are added, and the polishing process is more complicated. Therefore, the curved surface grinding tool is provided to well solve the defects.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a curved surface grinding frock for solve the problem that proposes among the above-mentioned background art.

The utility model discloses a can realize through following technical scheme: a curved surface grinding tool comprises a base, an upper top plate and upright columns, wherein the upright columns are used for connecting the base with the upper top plate and are distributed along the vertical direction, a lifting table is arranged between the base and the upper top plate and is in sliding fit with the upright columns, a movable opening is formed in the lifting table in a penetrating mode, a mounting sleeve is arranged on the top surface of the lifting table and is located at the position of the movable opening, a centering top is movably arranged inside the mounting sleeve, and a driving mechanism is fixedly arranged inside the mounting sleeve and used for driving the centering top to do reciprocating lifting motion along the vertical direction;

the lifting block is connected in an inner cavity of the rotating seat in a sliding manner, the compression spring is located in the rotating seat, and two ends of the compression spring are fixedly connected with the rotating seat and the lifting block respectively.

Optionally, the driving mechanism includes a positioning seat and a connecting portion fixedly connected to an outside of the positioning seat, the positioning seat is fixedly connected to an inner top surface of the mounting sleeve, a rotating cavity is formed in a bottom surface of the positioning seat, and a top of the centering center is rotatably sleeved in the rotating cavity; the outer surface of the centering centre is provided with an oval rotary groove along the circumferential circle, one end of the connecting part is provided with a limiting block, and the limiting block is movably embedded in the rotary groove.

Optionally, the driving mechanism further includes a servo motor fixedly connected to the outside of the positioning seat and a gear ring fixedly sleeved on the outside of the centering tip, an output shaft of the servo motor is coaxially connected with a driving gear, and the driving gear is meshed with the gear ring.

Optionally, the inner surface of the rotary groove is arc-shaped, and one end of the limiting block, which is embedded into the rotary groove, is provided with an arc-shaped surface matched with the rotary groove.

Optionally, a lifting cylinder is arranged on the top surface of the upper top plate, and a piston rod of the lifting cylinder penetrates through the upper top plate and is fixedly connected with the mounting sleeve.

Optionally, the top surface of the lifting block is provided with an anti-slip block adapted to the embedded groove on the workpiece, the bottom surface of the base is provided with a driving motor, and an output shaft of the driving motor penetrates through the base and is coaxially connected with the bottom surface of the rotating seat; the inside wall that rotates the seat is equipped with along vertical distribution's slide rail, seted up on the periphery wall of elevator with the spout of slide rail adaptation.

Compared with the prior art, the utility model provides a curved surface grinding frock possesses following beneficial effect:

1. the utility model utilizes the centering centre and the carrying platform to clamp the workpiece together, and because the centering centre can reciprocate along the vertical direction, the workpiece can be driven to reciprocate along the vertical direction while being driven to rotate, thereby being beneficial to improving the polishing quality;

2. the utility model discloses well elevating platform can follow vertical direction and slide, consequently conveniently adjusts the interval between centering top and the microscope carrier to the work piece of multiple different specifications of adaptation helps improving the utility model discloses a universality.

Drawings

FIG. 1 is a schematic view of a conventional workpiece;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic structural view of the centering center of the present invention;

fig. 4 is a sectional view of the structure of the positioning seat and the centering center of the present invention;

fig. 5 is a sectional view of the structure of the carrier of the present invention.

In the figure: 1. a base; 2. an upper top plate; 3. a column; 4. a lifting platform; 5. a movable opening; 6. installing a sleeve; 7. centering the centre; 8. a stage; 801. a rotating seat; 802. a lifting block; 803. a compression spring; 804. a slide rail; 805. a chute; 9. a drive motor; 10. positioning seats; 11. a servo motor; 12. a connecting portion; 13. a rotation chamber; 14. a rotary trough; 15. a limiting block; 16. a ring gear; 17. a driving gear; 18. anti-skid blocks; 19. and a lifting cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 2-5, a curved surface grinding tool includes a base 1, an upper top plate 2, and vertical columns 3 used for connecting the base 1 and the upper top plate 2 and distributed along a vertical direction, wherein a lifting table 4 is arranged between the base 1 and the upper top plate 2, and the lifting table 4 is in sliding fit with the vertical columns 3, so that the lifting table 4 can slide along an axial direction of the vertical columns 3; a movable opening 5 is formed in the lifting platform 4 in a penetrating manner, a mounting sleeve 6 is arranged on the top surface of the lifting platform 4 and located at the movable opening 5, a centering center 7 is movably arranged inside the mounting sleeve 6, a driving mechanism is fixedly arranged inside the mounting sleeve 6 and used for driving the centering center 7 to do reciprocating lifting motion along the vertical direction, as shown in fig. 2, the centering center 7 is of a three-section structure, and the tip end of the centering center 7 faces downwards; in addition, the top surface of the upper top plate 2 is provided with a lifting cylinder 19, and a piston rod of the lifting cylinder 19 penetrates through the upper top plate 2 and is fixedly connected with the mounting sleeve 6, so that the lifting cylinder 19 can directly drive the lifting table 4 to vertically lift for adjusting the distance between the centering center 7 and the carrier 8.

Further, the driving mechanism comprises a positioning seat 10 and a connecting part 12 fixedly connected to the outer part of the positioning seat 10, the positioning seat 10 is fixedly connected to the inner top surface of the mounting sleeve 6, a rotating cavity 13 is formed in the bottom surface of the positioning seat 10, the rotating cavity 13 is matched with the centering tip 7, the top of the centering tip 7 is rotatably sleeved in the rotating cavity 13, an oval rotary groove 14 is formed in the outer surface of the centering tip 7 in a circle along the circumferential direction, a limiting block 15 is arranged at one end of the connecting part 12, and the limiting block 15 is movably embedded in the rotary groove 14; in addition, the driving mechanism further comprises a servo motor 11 fixedly connected to the outside of the positioning seat 10 and a gear ring 16 fixedly sleeved on the outside of the centering center 7, an output shaft of the servo motor 11 is coaxially connected with a driving gear 17, and the driving gear 17 is meshed with the gear ring 16, so that the centering center 7 can be driven to rotate under the action of the servo motor 11; specifically, the revolving groove 14 is formed along the elliptical direction, that is, along the circumferential direction of the oblique cutting surface of the centering center 7, the inner surface of the revolving groove 14 is arc-shaped, and one end of the limiting block 15, which is embedded into the revolving groove 14, is provided with an arc-shaped surface matched with the revolving groove 14.

In the use process of the centering device, when the servo motor 11 drives the centering center 7 to rotate, the limiting block 15 is always embedded in the rotary groove 14, so that the limiting block 15 indirectly pushes the centering center 7 to reciprocate in the vertical direction.

On the basis of the above embodiment, the carrier 8 is arranged above the base 1 and right below the centering center 7, the carrier 8 includes a rotating seat 801, a lifting block 802 and a compression spring 803, the rotating seat 801 is of a top opening structure, the lifting block 802 is slidably connected in an inner cavity of the rotating seat 801, the compression spring 803 is located in the rotating seat 801, and two ends of the compression spring 803 are respectively fixedly connected with the rotating seat 801 and the lifting block 802, and in a use state, the compression spring 803 is always in a compression state and is used for tightly abutting against a workpiece to prevent the workpiece from loosening; in addition, the top surface of the lifting block 802 is provided with an anti-slip block 18 matched with an embedded groove on a workpiece, the bottom surface of the base 1 is provided with a driving motor 9, and an output shaft of the driving motor 9 penetrates through the base 1 and is coaxially connected with the bottom surface of the rotating seat 801; the inside wall of the rotating seat 801 is provided with a slide rail 804 which is vertically distributed, and the outer peripheral wall of the lifting block 802 is provided with a slide groove 805 which is matched with the slide rail 804, so that the lifting block 802 can lift along the slide rail 804.

In the specific use process of the embodiment, a workpiece to be polished is firstly placed on the carrier 8, the anti-skid block 18 on the top surface of the lifting block 802 is embedded into the embedded groove on the workpiece, then the lifting cylinder 19 is started, and the tip of the centering center 7 is abutted to the upper surface of the workpiece; then, starting a driving motor 9 and a servo motor 11, wherein the driving motor 9 is used for driving the workpiece to rotate, and the servo motor 11 is used for driving the workpiece to reciprocate along the vertical direction; then the grinding wheel for polishing is gradually close to the workpiece, so that the grinding wheel is attached to the outer surface of the workpiece, and the polishing effect is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a curved surface grinding frock, includes base (1), goes up roof (2) and is used for connecting base (1) and last roof (2) and along stand (3) that vertical direction distributes, be equipped with elevating platform (4) between base (1) and last roof (2), elevating platform (4) with sliding fit, its characterized in that between stand (3):

a movable opening (5) is formed in the lifting platform (4) in a penetrating mode, a mounting sleeve (6) is arranged on the top surface of the lifting platform (4) and located at the position of the movable opening (5), a centering tip (7) is movably arranged inside the mounting sleeve (6), and a driving mechanism is fixedly arranged inside the mounting sleeve (6) and used for driving the centering tip (7) to do reciprocating lifting motion along the vertical direction;

the lifting platform is characterized in that a carrying platform (8) is arranged above the base (1) and under the centering center (7), the carrying platform (8) comprises a rotating seat (801), a lifting block (802) and a compression spring (803), the rotating seat (801) is of a top opening structure, the lifting block (802) is connected in an inner cavity of the rotating seat (801) in a sliding mode, the compression spring (803) is located in the rotating seat (801), and two ends of the compression spring (803) are fixedly connected with the rotating seat (801) and the lifting block (802) respectively.

2. The curved surface grinding tool according to claim 1, characterized in that: the driving mechanism comprises a positioning seat (10) and a connecting part (12) fixedly connected to the outside of the positioning seat (10), the positioning seat (10) is fixedly connected to the inner top surface of the mounting sleeve (6), a rotating cavity (13) is formed in the bottom surface of the positioning seat (10), and the top of the centering tip (7) is rotatably sleeved in the rotating cavity (13); the outer surface of the centering centre (7) is provided with an oval rotary groove (14) along the circumferential direction in a circle, one end of the connecting part (12) is provided with a limiting block (15), and the limiting block (15) is movably embedded in the rotary groove (14).

3. The curved surface grinding tool according to claim 2, characterized in that: the driving mechanism further comprises a servo motor (11) fixedly connected to the outside of the positioning seat (10) and a gear ring (16) fixedly sleeved on the outside of the centering center (7), an output shaft of the servo motor (11) is coaxially connected with a driving gear (17), and the driving gear (17) is meshed with the gear ring (16).

4. The curved surface grinding tool according to claim 2, characterized in that: the inner surface of the rotary groove (14) is arc-shaped, and one end of the limiting block (15) embedded into the rotary groove (14) is provided with an arc-shaped surface matched with the rotary groove (14).

5. The curved surface grinding tool according to claim 2, characterized in that: the top surface of the upper top plate (2) is provided with a lifting cylinder (19), and a piston rod of the lifting cylinder (19) penetrates through the upper top plate (2) and is fixedly connected with the mounting sleeve (6).

6. The curved surface grinding tool according to claim 1, characterized in that: the top surface of the lifting block (802) is provided with an anti-slip block (18) matched with an embedded groove on a workpiece, the bottom surface of the base (1) is provided with a driving motor (9), and an output shaft of the driving motor (9) penetrates through the base (1) and is coaxially connected with the bottom surface of the rotating base (801); the inner side wall of the rotating seat (801) is provided with sliding rails (804) which are vertically distributed, and the outer peripheral wall of the lifting block (802) is provided with sliding grooves (805) matched with the sliding rails (804).