CN114633160A - Spindle Sleeve Special Grinder - Google Patents

Abstract

The invention belongs to the technical field of grinding machine equipment, and relates to a special grinding machine for a spindle sleeve. The workpiece box is installed, the electric spindle is rotated on the workpiece box, and the electric spindle is connected to the manual chuck. The rotating worktable is also equipped with a center frame with adjustable position. The center frame cooperates with the manual chuck to realize the installation of the workpiece. The clip is fixed; a cross slide with adjustable position is installed on the feed seat, and a small slide is installed on the cross slide, and the small slide can move relative to the cross slide, and the moving direction of the small slide is perpendicular to the moving direction of the cross slide. The grinding machine can realize reliable grinding of the inner circle and straight end face of workpieces such as spindle sleeves, and can also tilt the workpiece at a certain angle according to processing needs to meet the special-shaped processing such as taper surface taper.

Description

Spindle Sleeve Special Grinder

technical field

The invention belongs to the technical field of grinding machine equipment, and relates to a special grinding machine for a spindle sleeve.

Background technique

Grinding machine is a common equipment for grinding, and the straight end face and inner circle of the spindle sleeve must be ground by the grinding machine. During the processing of the spindle sleeve, the spindle sleeve needs to be fed accordingly according to the processing needs. During the machining process, the X-axis and Z-axis of the spindle sleeve need to be fed correspondingly to meet the processing needs. Usually done very large, resulting in poor economic efficiency. In addition, after the existing grinder has worked for a period of time, when dressing the grinding wheel, the grinding wheel needs to be taken to a special dressing equipment for dressing, which is cumbersome and has low dressing efficiency. At the same time, when the existing grinder is processing a workpiece, after the workpiece is clamped and fixed, it can usually only feed in a straight line, which leads to a narrow processing range and processing technology.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides a special grinding machine for spindle sleeves, which can realize reliable grinding of inner circles and linear end faces of workpieces such as spindle sleeves, and can also tilt the workpieces at a certain angle according to processing needs. , to meet the special-shaped processing such as taper and taper.

According to the technical solution of the present invention: a special grinding machine for spindle sleeve, which is characterized by comprising a bed, a turntable is installed on one end of the upper part of the bed, a feed seat is installed on the other end, and a rotary table is installed on the top of the turntable. The workpiece box is installed on the table, the electric spindle is rotated on the workpiece box, and the electric spindle is connected with the manual chuck. The rotating worktable is also equipped with a center frame with adjustable position. The center frame and the manual chuck cooperate to realize the workpiece. The clamping and fixing;

The cross slide plate with adjustable position is installed on the feed seat, and the small slide plate is installed on the cross slide plate, and the small slide plate can move relative to the cross slide plate, and the moving direction of the small slide plate is perpendicular to the moving direction of the cross slide plate. A group of grinding head seats, and the electric spindle of each group of said grinding head seats is respectively equipped with an adaptor grinding wheel;

A dresser seat is installed on the bed corresponding to each group of grinding head seats, a diamond pen seat is installed on the dresser seat, a diamond pen is installed on the diamond pen seat, and the diamond pen can dress the corresponding post grinding wheel.

As a further improvement of the present invention, the upper part of the rotary table is constructed with a dovetail table, and the dovetail connection part of the workpiece box and the dovetail table of the rotary table are pressed and connected by the first pressing block;

The dovetail connection part of the lower structure of the center frame and the dovetail platform of the rotary table are pressed and connected by a second pressing block.

As a further improvement of the present invention, two Z-axis linear guide rails are arranged in parallel on the feed seat, the cross slide plate is slidably arranged on the Z-axis linear guide rail, and a Z-axis screw feed assembly is installed between the two Z-axis linear guide rails, The Z-axis screw feed component drives the cross slide to reciprocate linearly along the Z-axis;

Two X-axis linear guide rails are arranged in parallel on the cross slide plate, the small slide plate is slidably arranged on the X-axis linear guide rail, and the X-axis screw feed assembly is installed between the two X-axis linear guide rails, and the X-axis screw feed assembly drives the The small sliding plate reciprocates linearly along the X axis.

As a further improvement of the present invention, the X-axis screw feed assembly has the same structure as the Z-axis screw feed assembly, wherein the Z-axis screw feed assembly includes a servo motor, a coupling, a motor seat, a nut seat, and a ball. Screw, combined bearing, front support, ball nut, angular contact bearing, the servo motor is installed on the motor seat, the output shaft of the servo motor is connected to the input end of the ball screw through the coupling, and the ball screw is threaded to connect the ball nut The ball nut is installed on the nut seat, one end of the ball screw is rotatably supported on the motor seat through an angular contact bearing, and the other end is rotatably supported on the front support through a combined bearing.

As a further improvement of the present invention, an installation step is constructed on the cross slide plate, the X-axis linear guide rail is fixed on the installation step, the upper surface of the installation step is lower than the upper surface of the cross slide plate, and the outer side of the installation step is provided with a process groove.

As a further improvement of the present invention, raised baffles are formed around the bed body.

As a further improvement of the present invention, the center frame includes a lower frame body and an upper frame body hinged on the lower frame body. After the lower frame is closed, the workpiece is clamped.

As a further improvement of the present invention, the upper frame body and the lower frame body are closed to form an inner hole for positioning the workpiece, and positioning posts are respectively provided on the upper frame body and the lower frame body to locate the workpiece.

As a further improvement of the present invention, the small sliding plate includes a small sliding plate seat, the small sliding plate seat is slidably arranged on the X-axis linear guide rail, the grinding head seat mounting plate is fixed on the small sliding plate seat, and the grinding head seat mounting plate is provided with two positioning grooves , the width of the lower slot of the positioning groove is larger than the width of the upper slot, and the grinding head seat is locked and fixed on the corresponding positioning slot by connecting bolts.

As a further improvement of the present invention, an installation hole is arranged on the side of the diamond pen holder, and a connection hole is arranged in the installation hole to penetrate to the bottom surface of the diamond pen holder, and the connection hole of the diamond pen holder is tightly connected with the trimmer holder; The upper part of the device is provided with a retractable diamond pen connection hole, and the diamond pen is fixed in the diamond pen connection hole.

The technical effects of the present invention are: the product structure of the present invention is reasonable and ingenious, and can be processed reliably for workpieces such as spindle sleeves. It can meet the needs of use; at the same time, the X-axis feed component and the Z-axis feed component use a cross structure stacked up and down, which can meet compound grinding, and can effectively save space, so that the bed can be made small, resulting in better economical Benefit; the product of the invention can reliably process the inner circle and end face of the spindle sleeve parts, and has rich processing technology; it is equipped with two grinding wheels at the same time, the size and material of the grinding wheel can be selected, and the interchangeability is relatively high.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a top view of FIG. 1 .

FIG. 3 is a left side view of FIG. 1 .

FIG. 4 is a perspective view of the present invention.

FIG. 5 is a schematic structural diagram of a Z-axis screw feed assembly.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

1 to 5, including the bed 1, the turntable 2, the rotary table 3, the first pressing block 4, the electric spindle 5, the workpiece box 6, the receiving plate 7, the manual chuck 8, the center frame 9, and the lower frame body 9 -1. Upper frame body 9-2, feed seat 10, cross slide plate 11, installation step 11-1, process groove 11-2, small slide plate 12, small slide plate seat 12-1, grinding head seat mounting plate 12-2 , positioning groove 12-3, grinding head seat 13, electric spindle 14, post grinding wheel 15, dresser seat 16, diamond pen seat 17, diamond pen 18, Z-axis screw feed assembly 19, servo motor 19-1, Coupling 19-2, motor seat 19-3, nut seat 19-4, ball screw 19-5, combined bearing 19-6, front support 19-7, ball nut 19-8, angular contact bearing 19-9 , Z-axis linear guide 20, X-axis screw feed assembly 21, X-axis linear guide 22, second pressing block 23, workpiece 24, etc.

As shown in Figures 1 to 5, the present invention is a special grinding machine for spindle sleeves, including a bed 1, a turntable 2 is installed at one end of the upper part of the bed 1, a feeder 10 is installed at the other end, and a rotary table is installed on the top of the turntable 2 3. A workpiece box 6 is installed on the rotary table 3, an electric spindle 5 is rotated on the workpiece box 6, and the electric spindle 5 is connected to the manual chuck 8. The rotary table 3 is also equipped with a center with an adjustable position. The frame 9 and the center frame 9 cooperate with the manual chuck 8 to realize the clamping and fixing of the workpiece 24 .

The turntable 2 adopts the pneumatic locking method, which is more economical and environmentally friendly than the traditional hydraulic locking method. The turntable 2 can be rotated 360°, the rotation accuracy can reach 0.001°, the precision is high, and it can be rotated to any angle for self-locking. It is driven by torque motor direct drive, saving installation space.

A cross slide 11 with adjustable position is installed on the feed base 10, and a small slide 12 is installed on the cross slide 11. The small slide 12 can move relative to the cross slide 11, and the moving direction of the small slide 12 is perpendicular to the moving direction of the cross slide 11. , two groups of grinding head seats 13 are installed on the small slide plate 12 , and the electric spindles 14 of each group of the grinding head seats 13 are respectively installed with rod grinding wheels 15 .

A dresser base 16 is installed on the bed 1 corresponding to each group of grinding head bases 13, a diamond pen base 17 is installed on the dresser base 16, and a diamond pen 18 is installed on the diamond pen base 17, and the diamond pen 18 can be connected to the corresponding post. The grinding wheel 15 is trimmed.

The upper part of the rotary table 3 is constructed with a dovetail table, and the dovetail connection part of the workpiece box 6 and the dovetail table of the rotary table 3 are pressed and connected by the first pressing block 4 . The upper part of the rotary table 3 adopts a dovetail type, and the bottom adopts a disc type to connect with the turntable 2. The disc is in the center of the dovetail, and the force is evenly applied to the left and right when rotated. The workpiece box 6 and the center frame 9 are installed by pressing the dovetail with the pressing block, and can slide arbitrarily on the rotary table 3. Because of the dovetail type, the reference will not change after sliding, and the concentricity is guaranteed. For workpieces 24 of different lengths, the lateral distance between the workpiece box 6 and the center frame 9 can be slidably adjusted. This model can meet the grinding length of 400mm workpiece 24.

The bottom of the workpiece box 6 also adopts a dovetail type, which can slide back and forth on the rotary table 3 . The electric spindle 5 is installed in the middle, which is equivalent to no need to install the belt drive of the head frame motor, so as to prevent the centrifugal force generated after the head frame drive rotates, which affects the grinding accuracy. The electric spindle 5 is equipped with a rotary encoder, which can control the workpiece 24 to rotate to any position to stop, which satisfies the grinding of the special-shaped workpiece 24 (the inner cavity is not a circle, but an oval or tapered workpiece).

The dovetail connection part of the lower structure of the center frame 9 and the dovetail table of the rotary table 3 are connected by pressing through the second pressing block 23 .

The center frame 9 includes a lower frame body 9-1 and an upper frame body 9-2 hinged on the lower frame body 9-1. The lower frame body 9-1 is pressed against the dovetail stage of the rotary table 3 through the second pressing block 23 Above, after the upper frame body 9-2 and the lower frame body 9-1 are closed, the workpiece 24 is clamped.

After the upper frame body 9-2 and the lower frame body 9-1 are closed, an inner hole for positioning the workpiece 24 is formed around the upper frame body 9-2 and the lower frame body 9-1 respectively.

In the specific work, the center frame 9 is constructed as a three-point contact type mechanical center frame. The three points of the three-point contact type mechanical center frame are composed of three positioning columns. The clamping range is φ20-φ100, which is suitable for the spindle sleeve with relatively small diameter. The bottom of the workpiece is connected with the rotary table 3 by a dovetail type, which can move forward and backward to adjust the relative position of the workpiece 24 holding the spindle sleeve.

Two Z-axis linear guide rails 20 are arranged in parallel on the feed base 10 , the cross slide 11 is slidably arranged on the Z-axis linear guide rail 20 , and a Z-axis screw feed assembly 19 is installed between the two Z-axis linear guide rails 20 . The rod feed assembly 19 drives the cross slide 11 to reciprocate linearly along the Z axis.

Two X-axis linear guide rails 22 are arranged in parallel on the cross slide plate 11, the small slide plate 12 is slidably arranged on the X-axis linear guide rail 22, and the X-axis screw feed assembly 21 is installed between the two X-axis linear guide rails 22, and the X-axis screw rod The feeding assembly 21 drives the small sliding plate 12 to reciprocate linearly along the X axis. The Z-axis linear guide 20 and the X-axis linear guide 22 are respectively pressed and fixed by guide rail pressing blocks.

The X-axis screw feed assembly 21 has the same structure as the Z-axis screw feed assembly 19, wherein the Z-axis screw feed assembly 19 includes a servo motor 19-1, a coupling 19-2, a motor base 19-3, and a nut Seat 19-4, ball screw 19-5, combined bearing 19-6, front support 19-7, ball nut 19-8, angular contact bearing 19-9, servo motor 19-1 installed on motor seat 19-3 , the output shaft of the servo motor 19-1 is connected to the input end of the ball screw 19-5 through the coupling 19-2, the ball screw 19-5 is threadedly connected to the ball nut 19-8, and the ball nut 19-8 is installed On the nut seat 19-4, one end of the ball screw 19-5 is rotatably supported on the motor seat 19-3 through the angular contact bearing 19-9, and the other end is rotatably supported on the front support 19-7 through the combined bearing 19-6 .

An installation step 11-1 is constructed on the cross slide plate 11, and the X-axis linear guide 22 is fixed on the installation step 11-1. The upper surface of the installation step 11-1 is lower than the upper surface of the cross slide plate 11. A process tank 11-2 is provided on the outside.

A raised baffle is formed around the bed body 1 .

The small sliding plate 12 includes a small sliding plate seat 12-1, the small sliding plate seat 12-1 is slidably arranged on the X-axis linear guide rail 22, and the grinding head seat mounting plate 12-2 is fixed on the small sliding plate seat 12-1, and the grinding head seat mounting plate 12 -2 is provided with two positioning grooves 12-3, the width of the lower slot of the positioning slot 12-3 is larger than the width of the upper slot, and the grinding head seat 13 is locked and fixed on the corresponding positioning slot 12-3 by connecting bolts .

A mounting hole is arranged on the side of the diamond pen holder 17, and a connection hole is arranged in the installation hole to penetrate to the bottom surface of the diamond pen holder 17, and the connection hole of the diamond pen holder 17 is fastened with the dresser holder 16; The shrinking diamond pen connection hole, the diamond pen 18 is fixed in the diamond pen connection hole. The side part of the connecting hole of the diamond pen is provided with an opening groove that runs through in the axial direction, and the part of the opening groove can be locked by bolts, so as to realize the reliable tightening of the connecting hole of the diamond pen.

As shown in Figures 1 to 5, when the product of the present invention is in operation, it can realize reliable and convenient processing of the spindle sleeve type workpiece 24, can realize the processing of the workpiece grinding inner circle and straight end face, and can realize the end face taper of the workpiece. for reliable machining.

Claims (10)

1. The utility model provides a special grinding machine of spindle sleeve which characterized in that: the automatic clamping device comprises a lathe bed (1), wherein a rotary table (2) is installed at one end of the upper part of the lathe bed (1), a feeding seat (10) is installed at the other end of the upper part of the lathe bed (1), a rotary workbench (3) is installed at the top of the rotary table (2), a workpiece box body (6) is installed on the rotary workbench (3), an electric spindle (5) is rotatably arranged on the workpiece box body (6), the electric spindle (5) is connected with a manual chuck (8), a center frame (9) with an adjustable position is further arranged on the rotary workbench (3) in a matched mode, and the center frame (9) is matched with the manual chuck (8) to clamp and fix a workpiece (24);

a cross sliding plate (11) with an adjustable position is mounted on the feeding seat (10), a small sliding plate (12) is mounted on the cross sliding plate (11), the small sliding plate (12) can move relative to the cross sliding plate (11), the moving direction of the small sliding plate (12) is perpendicular to that of the cross sliding plate (11), two groups of grinding head seats (13) are mounted on the small sliding plate (12), and a connecting rod grinding wheel (15) is mounted on an electric spindle (14) of each group of grinding head seats (13) respectively;

the grinding rod grinding wheel dresser is characterized in that a dresser seat (16) is arranged on the lathe bed (1) corresponding to each group of grinding head seats (13), a diamond pen seat (17) is arranged on the dresser seat (16), a diamond pen (18) is arranged on the diamond pen seat (17), and the diamond pen (18) can dress a corresponding connecting rod grinding wheel (15).

2. A grinder for a spindle sleeve as claimed in claim 1, wherein: a dovetail platform is constructed at the upper part of the rotary workbench (3), and a dovetail connecting part of the workpiece box body (6) is tightly connected with the dovetail platform of the rotary workbench (3) through a first pressing block (4);

and the dovetail connection part of the lower structure of the center frame (9) is in compression connection with the dovetail platform of the rotary worktable (3) through a second pressing block (23).

3. A grinder for a spindle sleeve as claimed in claim 1, wherein: two Z-axis linear guide rails (20) are arranged on the feeding seat (10) in parallel, the cross sliding plate (11) is arranged on the Z-axis linear guide rails (20) in a sliding mode, a Z-axis screw rod feeding assembly (19) is installed between the two Z-axis linear guide rails (20), and the Z-axis screw rod feeding assembly (19) drives the cross sliding plate (11) to do reciprocating linear motion along the Z axis;

two X-axis linear guide rails (22) are arranged on the cross sliding plate (11) in parallel, the small sliding plate (12) is arranged on the X-axis linear guide rails (22) in a sliding mode, an X-axis screw rod feeding assembly (21) is installed between the two X-axis linear guide rails (22), and the X-axis screw rod feeding assembly (21) drives the small sliding plate (12) to do reciprocating linear motion along the X axis.

4. A grinder for a special purpose for a spindle sleeve as claimed in claim 3, wherein: the X-axis screw feeding assembly (21) and the Z-axis screw feeding assembly (19) are identical in structure, the Z-axis screw feeding assembly (19) comprises a servo motor (19-1), a coupler (19-2), a motor base (19-3), a nut base (19-4), a ball screw (19-5), a combined bearing (19-6), a front support (19-7), a ball nut (19-8) and an angular contact bearing (19-9), the servo motor (19-1) is installed on the motor base (19-3), an output shaft of the servo motor (19-1) is connected with an input end of the ball screw (19-5) through the coupler (19-2), the ball screw (19-5) is connected with the ball nut (19-8) in a threaded fit mode, the ball nut (19-8) is installed on the nut base (19-4), one end of the ball screw (19-5) is rotatably supported on the motor base (19-3) through an angular contact bearing (19-9), and the other end of the ball screw is rotatably supported on the front support (19-7) through a combined bearing (19-6).

5. The grinding machine special for the spindle sleeve as claimed in claim 4, wherein: an installation step (11-1) is constructed on the cross sliding plate (11), the X-axis linear guide rail (22) is fixed on the installation step (11-1), the upper surface of the installation step (11-1) is lower than the upper surface of the cross sliding plate (11), and a process groove (11-2) is formed in the outer side of the installation step (11-1).

6. A grinder for a spindle sleeve as claimed in claim 1, wherein: the periphery of the bed body (1) is enclosed to form a raised baffle.

7. A grinder for a spindle sleeve as claimed in claim 1, wherein: the center frame (9) comprises a lower frame body (9-1) and an upper frame body (9-2) hinged to the lower frame body (9-1), the lower frame body (9-1) is pressed on a dovetail table of the rotary workbench (3) through a second pressing block (23), and the upper frame body (9-2) and the lower frame body (9-1) are closed to clamp a workpiece (24).

8. A grinder for a special purpose for a spindle sleeve as claimed in claim 7, wherein: the upper frame body (9-2) and the lower frame body (9-1) are closed and then are enclosed to form an inner hole for positioning the workpiece (24), and positioning columns are respectively arranged on the upper frame body (9-2) and the lower frame body (9-1) to position the workpiece (24).

9. A grinder for a spindle sleeve as claimed in claim 1, wherein: the small sliding plate (12) comprises a small sliding plate seat (12-1), the small sliding plate seat (12-1) is arranged on an X-axis linear guide rail (22) in a sliding mode, a grinding head seat mounting plate (12-2) is fixed on the small sliding plate seat (12-1), two positioning grooves (12-3) are formed in the grinding head seat mounting plate (12-2), the width of a lower groove opening of each positioning groove (12-3) is larger than that of an upper groove opening, and the grinding head seat (13) is locked on the corresponding positioning groove (12-3) through a connecting bolt.

10. A grinder for a spindle sleeve as claimed in claim 1, wherein: the side part of the diamond pen seat (17) is provided with a mounting hole, a connecting hole penetrating to the bottom surface of the diamond pen seat (17) is arranged in the mounting hole, and the connecting hole of the diamond pen seat (17) is fixedly connected with the dresser seat (16); the upper part of the diamond pen seat (17) is provided with a retractable diamond pen connecting hole, and the diamond pen (18) is fixed in the diamond pen connecting hole.

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