CN215788829U

CN215788829U - Multi-degree-of-freedom grinding frame device

Info

Publication number: CN215788829U
Application number: CN202121975983.2U
Authority: CN
Inventors: 龚鼎新; 陈伟
Original assignee: Shanghai New Samarium Machine Tool Co ltd
Current assignee: Shanghai New Samarium Machine Tool Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-11
Anticipated expiration: 2031-08-20

Abstract

The utility model provides a multi-degree-of-freedom grinding frame device which comprises a grinding wheel frame, a grinding wheel and a base at the bottom of the grinding wheel frame, wherein the grinding wheel frame comprises a grinding wheel frame shell, a base at the bottom of the grinding wheel frame shell, a sliding plate rotating seat in the grinding wheel frame shell and a sliding plate arranged at the front end of the sliding plate rotating seat; the grinding carriage further comprises a reciprocating motion device, a swinging mechanism and a rotating mechanism, the swinging mechanism and the rotating mechanism are arranged in the base, the reciprocating motion device is arranged between the sliding plate rotating seat and the sliding plate and comprises a connecting rod, a crankshaft and a first worm gear pair, the connecting rod is perpendicular to the crankshaft, one end of the connecting rod is eccentrically and movably connected to the end portion of the crankshaft, the other end of the connecting rod is movably connected with the sliding plate, and the first worm gear pair is fixed at one end, far away from the connecting rod, of the crankshaft and is in transmission connection with a motor of a power device. The grinding frame device can enable the grinding frame to have multiple degrees of freedom, and meets the grinding processing of a small plane and a spiral surface while meeting the grinding of a cylinder, a cone or a curved revolving body.

Description

Multi-degree-of-freedom grinding frame device

Technical Field

The utility model relates to a grinding frame device, in particular to a multi-degree-of-freedom grinding frame device.

Background

The prior art grinding frame generally has only one degree of freedom of horizontal longitudinal movement or two degrees of freedom of longitudinal and transverse movement. Through the control of the machine tool and the rotary motion of the matched workpiece, the grinding frame can meet the grinding processing of most cylindrical, conical or curved rotary workpieces arranged on a horizontal workbench of the machine tool, but cannot meet the grinding processing of small planes or spiral surfaces at the same time. Therefore, a grinding frame device with multiple degrees of freedom is needed to be designed to meet the grinding processing of small planes and spiral surfaces.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a multi-degree-of-freedom grinding frame device, so that the grinding machine device can be used for processing a cylinder, a cone or a curved revolving body and grinding a small plane or a spiral surface.

The technical scheme of the utility model is as follows: the utility model provides a multi freedom's mill frame device, includes wheel carrier, emery wheel and locates the base of wheel carrier bottom, the wheel carrier includes the wheel carrier casing, is fixed in the base of wheel carrier casing bottom, the slide revolving bed in the wheel carrier casing, and locates the slide of slide revolving bed front end, the base is hollow structure, the wheel carrier still includes:

the swinging mechanism is arranged in the base and used for adjusting the grinding carriage shell to swing back and forth on the base around an axis which is horizontally vertical to the grinding wheel;

the rotating mechanism is arranged in the base and used for adjusting the base to horizontally rotate back and forth on the base around an axis which is vertical to the grinding wheel;

the reciprocating device is arranged between the sliding plate rotary seat and the sliding plate and used for driving the sliding plate to automatically reciprocate in the vertical direction; the reciprocating device comprises a connecting rod, a crankshaft and a first worm gear pair, the connecting rod is perpendicular to the crankshaft, one end of the connecting rod is eccentrically and movably connected to the end portion of the crankshaft, the other end of the connecting rod is movably connected with the sliding plate, and the first worm gear pair is fixed at one end, far away from the connecting rod, of the crankshaft and is used for being in transmission connection with a motor of a power device.

Furthermore, the first worm gear pair comprises a first worm gear and a first worm matched with the first worm gear, the first worm gear is fixedly sleeved on the crank shaft, and one end of the first worm is in transmission connection with the motor and drives the crank shaft to rotate through the transmission of the worm gear and the worm.

Further, a second worm gear pair is arranged in one side end part of the crank shaft close to the connecting rod, and comprises a second worm gear and a matched second worm; one end of the crank shaft, which is close to the connecting rod, is provided with an axial worm wheel groove and a worm through hole which are matched with the second worm wheel and the second worm, the side wall parts of the worm wheel groove and the worm through hole are communicated, the second worm wheel and the second worm are respectively arranged in the worm wheel groove and the worm through hole and are mutually meshed through the communication parts, and the second worm wheel is rotatably and eccentrically and axially arranged in the crank shaft; one end of the connecting rod is connected with the second worm gear through a rotating shaft, one end of the rotating shaft is axially and eccentrically fixed on the second worm gear, and the other end of the rotating shaft is rotationally fixed at the end part of the connecting rod.

Furthermore, the swing mechanism comprises a horizontal first screw rod, a first nut and a connecting piece, two ends of the first screw rod are rotatably and axially fixed at the front end and the rear end of the base, the first nut is in threaded connection with the first screw rod, and a pair of lug columns extend outwards horizontally from the left side and the right side of the first nut; the top of the connecting piece is fixedly connected with the bottom of the grinding carriage shell, and the bottom of the connecting piece is connected with the pair of lug posts in a sliding mode.

Furthermore, the connecting piece is including being fixed in the declutch shift shaft of wheel carrier casing bottom, and follow the left and right sides downwardly extending's of declutch shift shaft bottom a pair of shift fork, the open slot of a pair of shift fork peg graft respectively in a pair of ear post on, the ear post with the open slot clearance fit of a pair of shift fork.

Further, be equipped with first locking mechanism between emery wheel frame casing bottom and the base, including first locking lead screw, a pair of first locking piece and a pair of first locking axle, wherein:

the first locking screw rod is horizontally arranged at the bottom of the grinding carriage shell along the left-right direction, the pair of first locking blocks are sleeved at two ends of the first locking screw rod in the grinding carriage shell, the end surface of the inner side of each first locking block is an inclined wedge surface, and one first locking block is in threaded connection with the first locking screw rod;

a pair of first vertical through holes are formed in the grinding carriage shell on the inner side of the first locking block, the first locking shaft is mounted in the first vertical through hole, a first radial through hole for the first locking screw to horizontally penetrate through is formed in the first locking shaft, and an inclined wedge hole matched with an inclined wedge surface of the first locking block is formed in one end, close to the first locking block, of the first radial through hole;

the bottom of first locking axle is fixed with first T type piece, first T type groove has been seted up on the base, first T type piece and first T type groove sliding connection, just the vertical height of the horizontal part in first T type groove is greater than the vertical height of first T type piece horizontal part.

Furthermore, the rotating mechanism comprises a second screw rod, a second nut and a positioning shaft, the positioning shaft is vertically arranged at the front end of the base, and a horizontal through hole for the second screw rod to pass through is formed in the positioning shaft;

the second screw rod is horizontally arranged in the base along the front-back direction, one end of the second screw rod penetrates through the horizontal through hole, is rotatably and axially fixed at the front end of the base, and the other end of the second screw rod extends backwards to the hollow part of the base; the second screw nut is in threaded connection with the second screw rod in the hollow portion of the base, a vertical cylindrical shaft is fixed at the bottom end of the second screw nut, and the cylindrical shaft is fixed on the base.

Further, be equipped with second locking mechanism between base and the base, including second locking lead screw, a pair of second latch segment and a pair of second latch shaft, wherein:

the second locking screw rod is horizontally arranged in the base along the left-right direction, the pair of second locking blocks are sleeved at two ends of the second locking screw rod, the end surface of the inner side of each second locking block is an inclined wedge surface, and one of the second locking blocks is in threaded connection with the second locking screw rod;

a pair of third vertical through holes are formed in the grinding wheel frame shell on the inner side of the second locking block, the second locking shaft is arranged in the third vertical through hole, a second radial through hole for the second locking screw rod to horizontally penetrate through is formed in the second locking shaft, and a wedge hole matched with a wedge surface of the second locking block is formed in one end, close to the second locking block, of the second radial through hole;

the top of second locking shaft is fixed with second T type piece, seted up a pair of T type circular arc groove on the lower surface of base, second T type piece and T type circular arc groove sliding connection, just the vertical height of the horizontal part in T type circular arc groove is greater than the vertical height of second T type piece horizontal part.

Furthermore, a swing mechanism is arranged in the grinding wheel frame shell and comprises a vertical third worm and a third worm wheel matched with the third worm, the top end of the third worm is rotatably and axially fixed at the top end of the grinding wheel frame shell, and the third worm wheel is fixed at the inner side end of the sliding plate rotating seat; and a third locking mechanism is arranged between the sliding plate rotary seat and the grinding wheel frame shell and is used for adjusting the loosening and locking states between the sliding plate rotary seat and the grinding wheel frame shell.

Further, the third locking mechanism comprises a third locking screw rod, a pair of third locking blocks and a pair of third locking shafts, wherein:

the third locking screw rod is horizontally arranged at the upper part of the grinding wheel frame shell along the front-back direction, the pair of third locking blocks are sleeved at two ends of the third locking screw rod, the end surface of the inner side of each third locking block is a wedge surface, and one third locking block is in threaded connection with the third locking screw rod;

a pair of second horizontal through holes are formed in the grinding wheel frame shell on the inner side of the third locking block, the third locking shaft is installed in the second horizontal through holes, a third radial through hole for the third locking screw rod to horizontally penetrate through is formed in the third locking shaft, and a wedge hole matched with a wedge surface of the third locking block is formed in one end, close to the third locking block, of the third radial through hole;

and a third T-shaped block is fixed at one end of the third locking shaft, which is close to the sliding plate rotating seat, a third T-shaped groove is formed in the inner end surface of the sliding plate rotating seat, the third T-shaped block is connected with the third T-shaped groove in a sliding manner, and the width of the horizontal part of the third T-shaped groove is greater than that of the horizontal part of the third T-shaped block.

The multi-degree-of-freedom grinding frame device has the following beneficial effects:

(1) the grinding machine device provided by the utility model has the advantages that the grinding frame has multiple degrees of freedom by arranging the swinging mechanism, the rotating mechanism, the slewing mechanism and the reciprocating motion device, and can meet the grinding requirements of a cylinder, a cone or a curved slewing body and the grinding requirements of a small plane and a spiral surface.

(2) The swing mechanism and the rotating mechanism are simple in structure, simple to operate and convenient to install.

(3) The grinding carriage device can control the locking and unlocking states of the grinding carriage shell and the base, the base and the base, and the grinding carriage shell and the sliding plate rotary seat by operating the first locking mechanism, the second locking mechanism and the third locking mechanism respectively.

(4) According to the stroke reciprocating device, the second worm gear pair is arranged at the end part of the crankshaft, so that the stroke of the vertical reciprocating motion of the grinding wheel can be adjusted only by manually adjusting the second worm, and the operation is convenient.

Drawings

Fig. 1 is a front view of the grinding frame device of the present invention.

Fig. 2 is a left side view of the wheel slide of the present invention.

Fig. 3 is a sectional view taken along line a-a in fig. 2.

Fig. 4 is a sectional view taken along line F-F in fig. 2.

Fig. 5 is a structural view of the reciprocating device.

Fig. 6 is a sectional view taken along line E-E in fig. 5.

Fig. 7 is a sectional view taken along line B-B in fig. 3.

Fig. 8 is a structural view of the first nut.

Fig. 9 is a sectional view taken along line C-C in fig. 3.

Fig. 10 is a vertical sectional view of the base in fig. 1 in the left-right direction.

Fig. 11 is a bottom view of the base.

Wherein:

1. the grinding wheel device comprises a grinding wheel frame 2, a grinding wheel 3, a base 4, a grinding wheel frame shell 5, a base 6, a sliding plate rotating seat 7 and a sliding plate;

100. the reciprocating device comprises a reciprocating device, 110, a connecting rod, 120, a crank shaft, 121, a worm gear groove, 122, a worm through hole, a motor, 130, a first worm gear pair, 131, a first worm gear, 132, a first worm, 140, a second worm gear, 150, a second worm, 160 and a rotating shaft;

200. the device comprises a swing mechanism 210, a first screw rod 220, a first nut 230, an ear column 240, a shifting fork shaft 250 and a shifting fork;

300. the locking device comprises a first locking mechanism 310, a first locking screw rod 320, a first locking block 321, a wedge surface 330, a first locking shaft 340, a first vertical through hole 350, a first T-shaped groove 360 and a first T-shaped block;

400. the rotating mechanism 410, a second screw rod 420, a second screw nut 430, a positioning shaft 440, a second vertical through hole 450 and a cylindrical shaft;

500. the locking mechanism comprises a second locking mechanism 510, a second locking screw rod 520, a second locking block 530, a second locking shaft 531, a second T-shaped block 540, a third vertical through hole 550, a T-shaped arc groove 560 and a second T-shaped block;

600. a slewing mechanism 610, a third worm wheel 620 and a third worm.

700. A third locking screw rod 710, a third locking screw rod 720, a third locking block 730, a third locking shaft 740 and a third T-shaped block.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described in detail and fully with reference to the accompanying drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, the present invention provides a multi-degree-of-freedom grinding carriage device, which includes a grinding carriage 1, a grinding wheel 2 at the front end of the outer side of the grinding carriage 1, and a base 3 disposed at the bottom of the grinding carriage 1;

the grinding carriage 1 comprises a grinding carriage shell 4, a base 5 fixed at the bottom of the grinding carriage shell 4, a sliding plate revolving seat 6 in the grinding carriage shell 4 and a sliding plate 7 arranged at the front end of the sliding plate revolving seat 6; the grinding wheel 2 is fixedly connected with the sliding plate 7, the base 5 is of a hollow structure, and the bottom end surface of the grinding carriage shell 4 and the top end surface of the base 5 are arc surfaces matched with each other; the grinding wheel frame 1 further comprises:

the swinging mechanism 200 is arranged in the base 5 and used for adjusting the grinding carriage shell 4 to swing back and forth on the base 5 around an axis which is horizontally vertical to the grinding wheel 2;

the rotating mechanism 400 is arranged in the base 5 and used for adjusting the base 5 to horizontally rotate back and forth on the base 3 around an axis which is vertical to the grinding wheel 2;

the reciprocating device 100 is arranged between the sliding plate rotary seat 6 and the sliding plate 7 and is used for driving the sliding plate 7 to reciprocate in the vertical direction; the reciprocating device 100 comprises a connecting rod 110, a crankshaft 120 and a first worm gear pair 130, wherein the connecting rod 110 is perpendicular to the crankshaft 120, one end of the connecting rod 110 is eccentrically and movably connected with the end part of the crankshaft 120, and the other end of the connecting rod 110 is movably connected with the sliding plate 7; the first worm gear pair 130 is disposed at an end of the crankshaft 120 away from the connecting rod 110, and is used for connecting with a power device motor (not shown) to drive the crankshaft 120 to rotate.

The multi-degree-of-freedom grinding frame device provided by the utility model has the advantages that the reciprocating motion device 100 drives the sliding plate 7 to automatically reciprocate in the vertical direction, and the grinding wheel 2 can be used for grinding the vertical plane of a workpiece to be processed on the horizontal workbench in cooperation with the transverse motion of a machine tool; when the reciprocating device 100 stays at the central height of the workpiece arranged on the two centers and is matched with the transverse motion, the longitudinal motion and the rotary motion of the workpiece of the machine tool, the reciprocating device can be used for grinding an outer cylindrical surface, an outer conical surface or a curved rotary workpiece. The grinding carriage shell 4 is manually adjusted to swing around a small angle horizontally vertical to the axis direction of the grinding wheel 2 on the base 5 through the swinging mechanism 200, and the adjustment of the angle and the rotation motion of the workpiece are matched to enable the grinding wheel 2 to grind the spiral surface of the workpiece to be machined, which is arranged between the two tips. The base 5 is manually adjusted to horizontally rotate on the base 3 by a small angle perpendicular to the axis direction of the grinding wheel 2 through the rotating mechanism 400, and the adjustment of the angle and the reciprocating motion of the reciprocating device 100 can be used for the grinding wheel 2 to grind a lateral vertical plane of a workpiece to be machined on a horizontal workbench.

Further, as shown in fig. 4 to 6, the first worm gear pair 130 includes a first worm gear 131, and a first worm 132 matched with the first worm gear 131, the first worm gear 131 is fixedly sleeved on the inner side end of the crank shaft 120, and one end of the first worm 132 is in transmission connection with a motor (not shown in the figure) and drives the crank shaft 120 to rotate through worm and worm gear transmission.

Further, a second worm gear pair is arranged in an end portion of the crankshaft 120 close to the connecting rod 110, the second worm gear pair includes a second worm gear 140 and a second worm 150 matched with the second worm gear, the second worm gear 140 is rotatably and eccentrically and axially installed at an end portion of the crankshaft 120, the connecting rod 110 is eccentrically and movably connected to the second worm gear 140, and the second worm gear 140 drives the connecting rod 110 to reciprocate along with the rotation of the crankshaft 120.

Specifically, one end of the crank shaft 120 near the connecting rod 110 is provided with an axial worm gear groove 121 and a worm through hole 122 which are matched with the second worm gear 140 and the second worm 150, side wall portions of the worm gear groove 121 and the worm through hole 122 are communicated, and the second worm gear 140 and the second worm 150 are respectively installed in the worm gear groove 121 and the worm through hole 122 and are meshed with each other through the communicated portions. In this embodiment, the lower end of the second worm 150 is provided with a hexagon socket (not shown), and the second worm gear 140 can be driven to rotate by manually rotating the second worm 150 by using a hexagon socket wrench.

Further, the connecting rod 110 is connected to the second worm gear 140 through a rotating shaft 160, one end of the rotating shaft 160 is axially and eccentrically fixed to the second worm gear 140, and the other end is rotatably fixed to an end of the connecting rod 110.

The reciprocating device 100 drives the first worm gear pair 130 to rotate the crankshaft 120 through a worm gear and worm drive belt by a motor, and further drives the connecting rod 110 to drive the reciprocating slide plate 7 to move, so as to drive the grinding wheel 2 to perform reciprocating motion in the vertical direction, and grind the vertical plane of a workpiece to be processed. In addition, since the connecting rod 110 is eccentrically connected to the second worm gear 140, and the second worm gear 140 is eccentrically installed at the end of the crank shaft 120, the distance from the end rotating shaft 160 of the connecting rod 110 to the center of the crank shaft 120 can be adjusted by rotating the second worm 150 to rotate the second worm gear 140, thereby changing the stroke of the slide plate 7 to reciprocate the grinding wheel 2 in the vertical direction.

According to the present invention, as shown in fig. 7 and 8, the swing mechanism 200 includes a horizontal first lead screw 210, a first nut 220, and a connecting member, wherein: the two ends of the first screw rod 210 penetrate through the hollow part of the base 5 and are rotatably and axially fixed at the front end and the rear end of the base 5, the first screw 220 is in threaded connection with the first screw rod 210, a pair of lug columns 230 horizontally extend outwards from the left side and the right side of the first screw 220, the top of the connecting piece is fixedly connected with the bottom of the grinding carriage shell 4, and the bottom of the connecting piece is in sliding connection with the pair of lug columns 230.

Preferably, in this embodiment, the connecting member includes a fork shaft 240 fixed to the bottom of the wheel slide frame housing 4, and a pair of forks 250 extending downward along the left and right sides of the bottom end of the fork shaft 240, the open slots of the forks 250 are respectively inserted into the ear posts 230, and the open slots of the ear posts 230 and the forks 250 are in clearance fit, so that the forks 250 can slide relative to the ear posts 230.

When the swing mechanism 200 adjusts the position of the grinding carriage shell 4, the first screw 210 is rotated to drive the first nut 220 to move back and forth on the first screw 210, and the back and forth movement of the first nut 220 drives the grinding carriage shell 4 to swing back and forth through the connecting piece; and because the shifting fork shaft 240 of the connecting piece is fixedly connected with the grinding wheel frame shell 4, when the shifting fork shaft 240 swings along with the grinding wheel frame shell 4, the offset of the center of the first nut 220 in the height direction is compensated through the relative sliding between the ear posts 230 and the open grooves of the shifting fork 250 when the grinding wheel frame shell 4 swings back and forth relative to the base 5, so that the nut is prevented from being stuck.

Further, as shown in fig. 3, a first locking mechanism 300 is provided between the bottom of the wheel carriage case 4 and the base 5 to adjust the state of the wheel carriage case 4 and the base 5, the first locking mechanism 300 includes a first locking screw 310, a pair of first locking blocks 320, and a pair of first locking shafts 330, wherein:

the first locking screw rod 310 is horizontally arranged in the bottom of the grinding carriage shell 4 along the left-right direction, the pair of first locking blocks 320 are sleeved at two ends of the first locking screw rod 310, the end surface of the inner side of each first locking block is an inclined wedge surface 321, and one first locking block 320 is in threaded connection with the first locking screw rod 310 so as to realize opposite or relative movement of the two first locking blocks 320;

a pair of first vertical through holes 340 is formed in the grinding carriage shell 4 on the inner side of the first locking block 320, the first locking shaft 330 is mounted in the first vertical through holes 340, a first radial through hole (not shown in the figure) for the first locking screw 310 to horizontally pass through is formed in the first locking shaft 330, and a wedge hole matched with the wedge surface 321 of the first locking block 320 is formed in one end, close to the first locking block 320, of the first radial through hole;

a first T-shaped block 331 is fixed at the bottom of the first locking shaft 330, a first T-shaped groove 350 is formed in the base 5, the first T-shaped block 331 is slidably connected with the first T-shaped groove 350, so that the grinding carriage shell 4 is fixedly connected with the base 5, and the vertical height of the horizontal part of the first T-shaped groove 350 is greater than that of the horizontal part of the first T-shaped block 331.

When the swing mechanism 200 is used for adjusting the relative position of the grinding carriage shell 4 and the base 5, firstly, the first locking screw 310 of the first locking mechanism 300 needs to be rotated, the first locking block 320 moves towards two sides, so that the grinding carriage shell 4 and the base 5 are in a loose state, and at the moment, the position of the grinding carriage shell 4 is adjusted by adjusting the swing mechanism 200; after the position of the grinding wheel frame shell 4 is adjusted, the first locking screw rod 310 rotates reversely to drive the pair of first locking blocks 320 at the two ends of the first locking screw rod 310 to move towards the middle until the first locking blocks 320 abut against the first locking shaft 330, the first locking blocks 320 at the two ends are further locked towards the middle, the first locking shaft 330 moves upwards in the first vertical through hole 340 under the action force of the first locking blocks 320, the upper side surface of the horizontal part of the first T-shaped block 331 abuts against the upper side surface of the horizontal part of the first T-shaped groove 350, and at the moment, the grinding wheel frame shell 4 and the base 5 are in a locking state.

According to the present invention, as shown in fig. 1 and 9, the rotating mechanism 400 includes a second lead screw 410, a second nut 420 and a positioning shaft 430, a second vertical through hole 440 matched with the positioning shaft 430 is formed at the front end of the base 5, the positioning shaft 430 is disposed in the second vertical through hole 440, and a horizontal through hole (not identified in the figures) for the second lead screw 410 to pass through is formed on the positioning shaft 430;

the second screw rod 410 is horizontally arranged in the base 5 along the front-back direction, one end of the second screw rod 410 passes through the horizontal through hole, is rotatably and axially fixed at the front end of the base 5, and the other end of the second screw rod horizontally extends backwards to the hollow part of the base 5;

the second nut 420 is screwed on the second screw rod 410 in the hollow portion of the base 5, and the bottom end of the second nut 420 is fixedly connected with the base 3. In this embodiment, a vertical cylindrical shaft 450 is fixed to a bottom end of the second nut 420, and the cylindrical shaft 450 is fixed to the base 3 to fixedly connect the second nut 420 and the base 3.

Further, as shown in fig. 10 and 11, a second locking mechanism 500 is provided between the base 3 and the base 5 for adjusting the state of releasing and locking between the base 5 and the base 3, and controlling the path of the base 5 horizontally sliding on the base 3. The second locking mechanism 500 includes a second locking screw 510, a pair of second locking blocks 520, and a pair of second locking shafts 530, wherein:

the second locking screw 510 is horizontally arranged in the base 3 along the left-right direction, the pair of second locking blocks 520 are sleeved at two ends of the second locking screw 510, the end surface of the inner side of each second locking block 520 is a wedge surface, and one second locking block 520 is in threaded connection with the second locking screw 510;

a pair of third vertical through holes 540 are formed in the base 3 on the inner side of the second locking block 520, the second locking shaft 530 is installed in the third vertical through holes 540, a second radial through hole (not identified in the figure) for the second locking screw 510 to horizontally pass through is formed in the second locking shaft 530, and a wedge hole matched with a wedge surface of the second locking block 520 is formed at one end, close to the second locking block 520, of the second radial through hole;

a second T-shaped block 531 is fixed to the top of the second locking shaft 530, a matched T-shaped arc groove 550 is formed in the lower surface of the base 5, the second T-shaped block 531 is slidably connected with the T-shaped arc groove 550, and the vertical height of the horizontal portion of the T-shaped arc groove 550 is greater than that of the horizontal portion of the second T-shaped block 531.

Specifically, in this embodiment, the two T-shaped arc grooves 550 are two concentric T-shaped arc grooves with different arc radii, which are disposed on the left and right sides of the lower surface of the base 5, and are used for limiting the track of the base 5 sliding back and forth on the base 3.

Similarly, when the rotating mechanism 400 needs to be operated to adjust the position of the base 5 on the base 3, the second locking structure 500 needs to be adjusted first, so that the base 5 and the base 3 are in a loose state, and then the second screw 410 is manually rotated, because the second screw 420 is fixed on the base 3 and cannot move, the second screw 410 moves back and forth in the second screw 420, and the base 5 is driven to horizontally swing on the base 3, and the movement track of the second screw is along the direction of the T-shaped arc groove 550. In addition, in the process that the second screw 410 moves back and forth in the second nut 420 to drive the base 5 to swing, the left and right deflection of the second nut 420 is compensated by the rotation of the positioning shaft 430 in the second vertical through hole 440, so as to ensure that the second screw 410 and the second nut 420 are not locked.

In addition, as shown in fig. 3 and 4, a revolving mechanism 600 is further disposed in the grinding carriage housing 4 for adjusting the slide plate revolving bed 6 to swing on the grinding carriage housing 4 around the axis of the grinding wheel 2 by a certain angle, and the angle adjustment can be used for grinding an inclined surface having a certain inclination angle between the workpiece mounted on the worktable and the worktable.

Specifically, the swing mechanism 600 comprises a third worm 620 vertically arranged in the grinding wheel carriage shell 4 and a third worm wheel 610 matched with the third worm 620, the top end of the third worm 620 is rotatably and axially fixed at the top end of the grinding wheel carriage shell 4, and the third worm wheel 610 is fixed at the end part of the inner side of the sliding plate swing seat 6. The third worm 620 is adjusted to rotate, so that the third worm wheel 610 is driven to rotate, and the sliding plate rotary seat 6 is driven to swing within a certain range around the axis of the grinding wheel 2.

Further, a third locking mechanism 700 is arranged between the sliding plate rotary seat 6 and the grinding wheel frame shell 4 for adjusting the loosening and locking state between the sliding plate rotary seat 6 and the grinding wheel frame shell 4. In this embodiment, the third locking mechanism 700 includes a third locking screw 710, a pair of third locking blocks 720 and a pair of third locking shafts 730, as in the first locking mechanism 300 and the second locking mechanism 500, wherein:

the third locking screw 710 is horizontally arranged at the upper part of the grinding wheel frame shell 4 along the front-back direction, the pair of third locking blocks 720 is sleeved at two ends of the third locking screw 710, the end surface of the inner side of each third locking block 720 is a wedge surface, and one third locking block 720 is in threaded connection with the third locking screw 710;

a pair of second horizontal through holes (not shown in the figure) are formed in the grinding wheel frame shell 4 on the inner side of the third locking block 720, the third locking shaft 730 is installed in the second horizontal through holes, a third radial through hole for the third locking screw 710 to horizontally pass through is formed in the third locking shaft 730, and a wedge hole matched with a wedge surface of the third locking block is formed in one end, close to the third locking block 720, of the third radial through hole;

a third T-shaped block 740 is fixed at one end of the third locking shaft 730 close to the sliding plate rotary seat 6, a third T-shaped groove is formed in the inner end face in the vertical direction of the sliding plate rotary seat 6, the third T-shaped block 740 is connected with the third T-shaped groove in a sliding mode, and the locking and unlocking states between the sliding plate rotary seat 6 and the grinding wheel frame shell 4 are controlled by rotating the third locking screw rod 710.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a multi freedom's mill frame device, includes wheel carrier, emery wheel and locates the base of wheel carrier bottom, the wheel carrier includes the wheel carrier casing, is fixed in the base of wheel carrier casing bottom, the slide revolving bed in the wheel carrier casing, and locates the slide of slide revolving bed front end, the base is hollow structure, its characterized in that, the wheel carrier still includes:

2. The multiple degrees of freedom mill frame device according to claim 1, wherein the first worm gear pair comprises a first worm gear and a first worm matched with the first worm gear, the first worm gear is fixedly sleeved on the crankshaft, one end of the first worm is in transmission connection with the motor, and the crankshaft is driven to rotate through worm and gear transmission.

3. The multiple degree of freedom mill frame device according to claim 2, characterized in that a second worm gear pair is arranged in one side end part of the crank shaft close to the connecting rod, and the second worm gear pair comprises a second worm gear and a matched second worm; one end of the crank shaft, which is close to the connecting rod, is provided with an axial worm wheel groove and a worm through hole which are matched with the second worm wheel and the second worm, the side wall parts of the worm wheel groove and the worm through hole are communicated, the second worm wheel and the second worm are respectively arranged in the worm wheel groove and the worm through hole and are mutually meshed through the communication parts, and the second worm wheel is rotatably and eccentrically and axially arranged in the crank shaft; one end of the connecting rod is connected with the second worm gear through a rotating shaft, one end of the rotating shaft is axially and eccentrically fixed on the second worm gear, and the other end of the rotating shaft is rotationally fixed at the end part of the connecting rod.

4. The multiple degrees of freedom mill frame device according to claim 1, wherein the swing mechanism comprises a horizontal first screw rod, a first nut and a connecting piece, two ends of the first screw rod are rotatably and axially fixed at the front end and the rear end of the base, the first nut is in threaded connection with the first screw rod, and a pair of ear posts extend outwards horizontally from the left side and the right side of the first nut; the top of the connecting piece is fixedly connected with the bottom of the grinding carriage shell, and the bottom of the connecting piece is connected with the pair of lug posts in a sliding mode.

5. The multiple degrees of freedom grinding carriage device according to claim 4, wherein said connecting member includes a fork shaft fixed to the bottom of said grinding carriage housing, and a pair of forks extending downward along the left and right sides of the bottom end of said fork shaft, and wherein the open grooves of said pair of forks are respectively inserted into said pair of ear posts, and said ear posts are in clearance fit with the open grooves of said pair of forks.

6. The multiple degree of freedom grinding carriage device of claim 1 wherein a first locking mechanism is provided between the bottom of the grinding carriage shell and the base, comprising a first locking screw, a pair of first locking blocks and a pair of first locking shafts, wherein:

7. The multi-degree-of-freedom mill frame device according to claim 1, wherein the rotating mechanism comprises a second screw rod, a second nut and a positioning shaft, the positioning shaft is vertically arranged at the front end of the base, and a horizontal through hole for the second screw rod to pass through is formed in the positioning shaft;

8. The multiple degrees of freedom mill frame device according to claim 1, wherein a second locking mechanism is provided between said base and said base, comprising a second locking screw, a pair of second locking blocks and a pair of second locking shafts, wherein:

9. The multiple degree of freedom grinding carriage device according to claim 1, wherein a swing mechanism is further provided in the grinding carriage housing, the swing mechanism includes a vertical third worm and a third worm gear engaged with the third worm, a top end of the third worm is rotatably and axially fixed to a top end of the grinding carriage housing, and the third worm gear is fixed to an inner side end of the sliding plate rotating seat; and a third locking mechanism is arranged between the sliding plate rotary seat and the grinding wheel frame shell and is used for adjusting the loosening and locking states between the sliding plate rotary seat and the grinding wheel frame shell.

10. The multiple degree of freedom mill frame device of claim 9, wherein the third locking mechanism comprises a third locking screw, a pair of third locking blocks and a pair of third locking shafts, wherein: