CN217728235U - A surface grinding tool - Google Patents

Abstract

The utility model relates to the technical field of mechanical processing, in particular to a curved surface grinding tool, comprising a base, an upper top plate and a vertical column for connecting the base and the upper top plate and distributed along the vertical direction, a lifting platform is arranged between the base and the upper top plate , There is sliding fit between the lifting platform and the column. There is a movable port running through the lifting platform. The top surface of the lifting platform and located at the movable port is provided with a mounting sleeve. A drive mechanism is provided to drive the centering top to reciprocate up and down in the vertical direction. The utility model utilizes the centering tip and the carrier to jointly clamp the workpiece, and since the centering tip can reciprocate up and down in the vertical direction, it can also drive the workpiece to reciprocate in the vertical direction while driving the workpiece to rotate, thereby helping To improve grinding quality.

Description

A curved surface grinding tool

technical field

The utility model relates to the technical field of mechanical processing, in particular to a curved surface grinding tool.

Background technique

At present, the external surface grinding of cylindrical workpieces is mainly carried out by grinding machines. In the specific operation process, it is first necessary to use the clamping mechanism on the grinding machine to clamp the workpiece, and drive the workpiece to rotate around the central axis, and then use the grinding wheel or the tool to gradually approach the workpiece to perform grinding. However, since the workpiece rotates around its own central axis, if the grinding wheel does not move during the grinding process, many grinding marks distributed along the circumferential direction will be left on the outer surface of the workpiece after grinding, which will affect the grinding quality and aesthetics. .

As shown in Figure 1, it is an existing cylindrical workpiece. One side of the workpiece has a square embedded groove. When using the existing grinding equipment to polish the workpiece, in order to avoid leaving a circle on the outer surface of the workpiece If there are no grinding traces on the circle, it is necessary to drive the grinding wheel to reciprocate along the axis of the workpiece, thus increasing the operation steps and making the grinding process more cumbersome. For this reason, we propose a curved surface grinding tool to solve the above-mentioned drawbacks well.

Utility model content

The purpose of this utility model is to provide a curved surface grinding tool for solving the problems raised in the above-mentioned background technology.

The utility model is achieved through the following technical solutions: a curved surface grinding tool, including a base, an upper top plate, and vertical columns for connecting the base and the upper top plate and distributed along the vertical direction. There is a lifting platform, which slides and fits between the lifting platform and the column. The lifting platform is provided with a movable opening, and the top surface of the lifting platform is provided with a mounting sleeve at the movable opening. A centering top is provided for internal activities, and a drive mechanism is fixed inside the installation sleeve for driving the centering top to perform reciprocating lifting movements along the vertical direction;

Above the base and directly below the centering apex, a stage is provided, the stage includes a rotating seat, a lifting block and a compression spring, the rotating seat is a structure with an opening at the top, and the lifting block is slidably connected to the In the inner cavity of the rotating seat, the compression spring is located in the rotating seat, and the two ends of the compression spring are respectively fixedly connected with the rotating seat and the lifting block.

Optionally, the drive mechanism includes a positioning seat and an external connection part fixedly connected to the positioning seat, the positioning seat is fixedly connected to the inner top surface of the installation sleeve, the bottom surface of the positioning seat is provided with a rotating cavity, and the The top of the centering top is rotatably set in the rotating cavity; the outer surface of the centering top is provided with an elliptical revolving groove along the circumference, and one end of the connecting part is provided with a limit block, so The limiting block is movably embedded in the rotary groove.

Optionally, the drive mechanism also includes a servo motor fixedly connected to the outside of the positioning seat and a ring gear fixedly sleeved on the outside of the centering center, the output shaft of the servo motor is coaxially connected with a driving gear, and the driving gear and The ring gear meshes with the set.

Optionally, the inner surface of the revolving groove is arc-shaped, and the end of the limiting block embedded in the revolving groove has an arc-shaped surface matching the revolving groove.

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

Optionally, the top surface of the lifting block is provided with an anti-skid block adapted to the embedded groove on the workpiece, the bottom surface of the base is provided with a drive motor, and the output shaft of the drive motor passes through the base and is connected with the rotating The bottom surface of the seat is coaxially connected; the inner wall of the rotating seat is provided with slide rails distributed along the vertical direction, and the outer peripheral wall of the lifting block is provided with a chute adapted to the slide rails.

Compared with the prior art, the utility model provides a curved surface grinding tool, which has the following beneficial effects:

1. The utility model uses the centering top and the stage to clamp the workpiece together, and since the centering top can be reciprocated in the vertical direction, it can also drive the workpiece to reciprocate in the vertical direction while driving the workpiece to rotate, so that Helps improve grinding quality;

2. In the utility model, the lifting table can slide vertically, so it is convenient to adjust the distance between the centering top and the carrier, so as to adapt to various workpieces of different specifications, which helps to improve the universality of the utility model.

Description of drawings

Fig. 1 is an existing schematic diagram of a workpiece;

Fig. 2 structural representation of the utility model;

Fig. 3 is a schematic diagram of the centering top structure of the utility model;

Fig. 4 is a cross-sectional view of the positioning seat and the centering top structure of the utility model;

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

In the figure: 1. base; 2. upper top plate; 3. column; 4. lifting platform; 5. movable opening; 6. installation sleeve; 7. centering top; block; 803, compression spring; 804, slide rail; 805, chute; 9, driving motor; 10, positioning seat; 11, servo motor; 12, connecting part; 13, rotating cavity; Bit block; 16, ring gear; 17, driving gear; 18, anti-skid block; 19, lifting cylinder.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiment: Please refer to Fig. 2-Fig. 5, a curved surface grinding tool, including a base 1, an upper top plate 2 and columns 3 for connecting the base 1 and the upper top plate 2 and distributed along the vertical direction, the base 1 and the upper top plate 2 is provided with a lifting platform 4, and the sliding cooperation between the lifting platform 4 and the column 3, therefore, the lifting platform 4 can slide along the axis direction of the column 3; The top surface and the movable opening 5 are provided with an installation sleeve 6, and the inner movement of the installation sleeve 6 is provided with a centering top 7, and the inside of the installation sleeve 6 is fixedly provided with a driving mechanism, which is used to drive the centering top 7 to move along the vertical direction. Reciprocating lifting motion, as shown in Figure 2, the centering top 7 is a three-stage structure, and the tip of the centering top 7 is downward; in addition, the top surface of the upper top plate 2 is provided with a lifting cylinder 19, and the piston rod of the lifting cylinder 19 It penetrates the upper top plate 2 and is fixedly connected with the mounting sleeve 6. Therefore, the lifting cylinder 19 can directly drive the lifting platform 4 to move up and down vertically, and is used to adjust the distance between the centering center point 7 and the carrier platform 8 .

Further, the driving mechanism includes a positioning seat 10 and an external connection portion 12 fixedly connected to the positioning seat 10, the positioning seat 10 is fixedly connected to the inner top surface of the mounting sleeve 6, and the bottom surface of the positioning seat 10 is provided with a rotating cavity 13, and the rotating cavity 13 and The centering top 7 is compatible, and the top of the centering top 7 is rotatably set in the rotating chamber 13. The outer surface of the centering top 7 is provided with an elliptical rotary groove 14 along the circumference, and the connecting part 12 One end is provided with a limit block 15, and the limit block 15 is movably embedded in the rotary groove 14; in addition, the driving mechanism also includes a servo motor 11 fixedly connected to the outside of the positioning seat 10 and a ring gear 16 fixedly set on the outside of the centering center 7, The output shaft of the servo motor 11 is coaxially connected with a drive gear 17, and the drive gear 17 is engaged with the ring gear 16. Therefore, through the action of the servo motor 11, the centering top 7 can be driven to rotate; specifically, the rotary groove 14 is along the Open in the elliptical direction, that is, open along the circumferential direction of the beveled surface of the centering center 7, and the inner surface of the revolving groove 14 is arc-shaped, and the end of the limit block 15 embedded in the revolving groove 14 has a Fitting curved surfaces.

During the use of this embodiment, when the servo motor 11 drives the centering center 7 to rotate, since the limit block 15 is always embedded in the rotary groove 14, the limit block 15 will indirectly push the centering center 7 to move vertically. Reciprocating lifting movement.

On the basis of the above embodiments, a platform 8 is provided above the base 1 and directly below the centering center 7. The platform 8 includes a rotating seat 801, a lifting block 802 and a compression spring 803. The rotating seat 801 is open at the top. structure, the lifting block 802 is slidably connected in the inner cavity of the rotating seat 801, the compression spring 803 is located in the rotating seat 801, and the two ends of the compression spring 803 are fixedly connected with the rotating seat 801 and the lifting block 802 respectively. The spring 803 is always in a compressed state, and its function is to press the workpiece tightly to prevent the workpiece from loosening; in addition, the top surface of the lifting block 802 is provided with an anti-skid block 18 that is adapted to the embedded groove on the workpiece, and the bottom surface of the base 1 is provided with a driving motor 9 , the output shaft of the driving motor 9 runs through the base 1 and is coaxially connected with the bottom surface of the rotating seat 801; 804 is adapted to the sliding slot 805, therefore, the lifting block 802 can be raised and lowered along the sliding rail 804.

In the specific use process of this embodiment, first the workpiece to be polished is placed on the carrier platform 8, and the anti-slip block 18 on the top surface of the lifting block 802 is embedded in the embedded groove on the workpiece, and then the lifting cylinder 19 is started. The tip of the centering top 7 abuts against the upper surface of the workpiece; then start the drive motor 9 and the servo motor 11, wherein the drive motor 9 is used to drive the workpiece to rotate, and the servo motor 11 is used to drive the workpiece to reciprocate in the vertical direction; then Then the grinding wheel for grinding is gradually approached to the workpiece, so that the grinding wheel fits the outer surface of the workpiece, thereby playing a grinding role.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A curved surface grinding tool, comprising a base (1), an upper top plate (2) and a column (3) for connecting the base (1) and the upper top plate (2) and vertically distributed, the base ( A lifting platform (4) is provided between 1) and the upper top plate (2), and the lifting platform (4) is slidingly matched with the column (3), which is characterized in that: The lifting platform (4) is provided with a movable opening (5), and the top surface of the lifting platform (4) is provided with a mounting sleeve (6) at the movable opening (5). The mounting sleeve (6) A centering top (7) is provided for the internal activities of the installation sleeve (6), and a driving mechanism is fixedly arranged inside the installation sleeve (6), which is used to drive the centering top (7) to perform reciprocating lifting motion along the vertical direction; Above the base (1) and directly below the centering top (7), a stage (8) is provided, and the stage (8) includes a rotating seat (801), a lifting block (802) and a compression spring ( 803), the rotating seat (801) has an open top structure, the lifting block (802) is slidingly connected in the inner cavity of the rotating seat (801), and the compression spring (803) is located on the rotating seat (801) Inside, and the two ends of the compression spring (803) are respectively fixedly connected with the rotating seat (801) and the lifting block (802). 2. A curved surface grinding tool according to claim 1, characterized in that: the driving mechanism comprises a positioning seat (10) and an external connection part (12) fixedly connected to the positioning seat (10), and the positioning seat (10) fixedly connected to the inner top surface of the mounting sleeve (6), the bottom surface of the positioning seat (10) is provided with a rotating cavity (13), and the top of the centering center (7) is rotatably set on the Inside the rotating cavity (13); the outer surface of the centering center (7) is provided with an elliptical revolving groove (14) along the circumference, and one end of the connecting part (12) is provided with a limit block (15), the limiting block (15) is movably embedded in the rotary groove (14). 3. A curved surface grinding tool according to claim 2, characterized in that: the drive mechanism also includes a servo motor (11) fixedly connected to the outside of the positioning seat (10) and a fixed sleeve on the centering center (7 ) external ring gear (16), the output shaft of the servo motor (11) is coaxially connected with a driving gear (17), and the driving gear (17) is meshed with the ring gear (16). 4. A curved surface grinding tool according to claim 2, characterized in that: the inner surface of the rotary groove (14) is arc-shaped, and the limit block (15) is embedded in the rotary groove (14) ) inside one end has the arc-shaped surface that is matched with the revolving groove (14). 5. A curved surface grinding tool according to claim 2, characterized in that: the top surface of the upper top plate (2) is provided with a lift cylinder (19), and the piston rod of the lift cylinder (19) runs through the upper The top plate (2) is fixedly connected with the installation sleeve (6). 6. A 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) adapted to the embedded groove on the workpiece, the The bottom surface of the base (1) is provided with a driving motor (9), the output shaft of the driving motor (9) runs through the base (1) and is coaxially connected with the bottom surface of the rotating seat (801); the rotating seat (801 ) is provided with vertically distributed slide rails (804) on the inner side wall, and a slide groove (805) adapted to the slide rails (804) is opened on the outer peripheral wall of the lifting block (802).

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