CN212735488U - Machining grinding device - Google Patents

Abstract

The utility model provides a machining grinding device, which comprises a grinding support table, a support rod, a U-shaped support seat, a fixed plate, a movable locking support frame structure, a rotatable movable fixing frame structure, a buffering and jacking rotary seat structure, a grinding frame, a shielding plate, a grinding motor, a grinding wheel, a first deep groove ball bearing, a second deep groove ball bearing, a threaded rod, a movable seat and a first movable wheel, wherein the upper end of the support rod is respectively bolted at the four corners of the lower end of the grinding support table; u type supporting seat bolted connection the upper end left side of brace table of polishing. The utility model discloses remove the support frame, the locking ring, the puller bolt, the fixing base, the frame of polishing, the setting of polishing motor and the wheel of polishing is favorable to in the crossing of work through locking ring contact fixing base, and the convenience carries out the fixed work to the frame of polishing, prevents to remove the influence work of polishing at the in-process frame of polishing.

Description

Machining grinding device

Technical Field

The utility model belongs to the technical field of grinding device, especially, relate to a machining grinding device.

Background

After the mechanical workpiece is produced, a polishing device is needed to polish the workpiece before use.

However, the existing polishing device also has the problems that the polishing equipment is inconvenient to fix in the working process, the workpiece is inconvenient to fix and disassemble, and the position of the workpiece is inconvenient to manually adjust.

Therefore, it is necessary to develop a machining polishing device.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a machining grinding device to there is the inconvenient equipment fixed work of polishing that carries out the in-process of working in solving current grinding device, the inconvenient problem of carrying out the fixed work of dismantling of work piece and inconvenient manual regulation work piece position. A machining polishing device comprises a polishing support table, a supporting rod, a U-shaped supporting seat, a fixed plate, a movable locking supporting frame structure, a rotatable movable fixing frame structure, a buffable jacking rotating seat structure, a polishing frame, a shielding plate, a polishing motor, a polishing wheel, a first deep groove ball bearing, a second deep groove ball bearing, a threaded rod, a movable seat and a first movable wheel, wherein the upper end of the supporting rod is respectively connected with four corners of the lower end of the polishing support table through bolts; the U-shaped supporting seat is connected to the left side of the upper end of the polishing supporting table through a bolt; the fixed seat is connected to the right side of the upper end of the polishing support table through a bolt; the fixed plate is connected to the left side of the upper end of the polishing support table through a bolt; the movable locking support frame structure is arranged in the middle of the upper inside of the fixed seat; the rotatable movable fixing frame structure is arranged on the upper side of the structure capable of buffering and tightly pushing the rotating seat; the structure capable of buffering and tightly propping the rotating seat is arranged at the upper end of the movable seat; the polishing frame is arranged at the upper end of the movable locking support frame structure; the upper end of the polishing frame is connected to the right side of the lower end of the shielding plate through a bolt; the polishing motor is connected to the middle position of the lower part of the front surface of the polishing frame through a bolt; the polishing wheel is connected to the outer wall of the output shaft of the polishing motor through a bolt; the first deep groove ball bearing is embedded in the middle position inside the right side of the U-shaped supporting seat; the second deep groove ball bearing is embedded in the middle of the lower side of the fixing plate; the right side of the threaded rod is inserted into the inner ring of the first deep groove ball bearing; the left side of the threaded rod penetrates through the inner ring of the second deep groove ball bearing; the first moving wheels are respectively connected with the four corners of the lower end of the moving seat through bolts; the movable seat is inserted in the middle of the upper inner part of the U-shaped supporting seat in a sliding manner; the threaded rod penetrates through the middle position inside the lower side of the movable seat and is in threaded connection with the movable seat; the movable locking support frame structure comprises a movable support frame, a locking ring, a jacking bolt, a rotating rod, a second movable wheel, a rotating disk and a hand-operated rod, wherein the locking ring is sleeved in the middle of the outer wall of the movable support frame in a sliding manner; the jacking bolt is in threaded connection with the middle position of the front surface of the locking ring; the rotating rod is connected to the middle position inside the lower side of the movable support frame in a shaft connection mode; the second moving wheel is connected to the middle position of the outer wall of the rotating rod through a bolt; the rotating disc is connected to the outer wall of the front surface of the rotating rod through a bolt; the hand rocker is coupled to the middle position of the upper part of the front surface of the rotating disc.

Preferably, the rotatable movable fixing frame structure comprises an inverted U-shaped frame, an inclined T-shaped jacking seat, a rotating motor, a rotating seat and a jacking spring, wherein the inclined T-shaped jacking seat penetrates through the middle position inside the front surface of the inverted U-shaped frame; the rotating seat is axially connected to the middle position inside the rear surface of the inclined T-shaped jacking seat; the rotating motor is connected to the middle position of the rear surface of the inverted U-shaped frame through a bolt; the rotating seat is connected to the outer wall of the output shaft of the rotating motor through a bolt; the jacking spring is sleeved on the outer wall of the inclined T-shaped jacking seat.

Preferably, the structure of the rotary seat capable of being buffered and tightly pushed comprises a U-shaped moving frame, a push rod, a sliding seat, a threaded pipe and a rotating pipe, wherein the push rod is connected to the upper part of the left side of the U-shaped moving frame through a bolt; the sliding seat is arranged in the middle of the top end in the U-shaped movable frame; the threaded pipe respectively penetrates through the middle position inside the upper side of the U-shaped moving frame and the middle position inside the sliding seat; the rotating pipe penetrates through the middle position inside the front surface of the threaded pipe.

Preferably, the outer wall of the threaded rod is in interference fit with the inner rings of the first deep groove ball bearing and the second deep groove ball bearing respectively; the first movable wheel is in contact with the bottom end of the U-shaped supporting seat.

Preferably, the puller bolt is arranged in contact with the movable support frame; the movable support frame adopts an inverted U-shaped stainless steel frame.

Preferably, the upper end of the movable support frame is connected with the lower end of the grinding frame through a bolt; the lower end of the grinding wheel is arranged in the middle of the upper inner part of the movable support frame; the lower end of the movable support frame is inserted in the middle of the upper inner part of the fixed seat in a sliding manner; the second move the wheel and set up with the inside bottom contact of fixing base.

Preferably, the jacking spring is arranged between the inner wall of the front surface of the inverted U-shaped frame and the inclined T-shaped jacking seat; and the inner walls of the rotating seat and the rotating seat are respectively provided with an anti-skid bulge.

Preferably, the threaded pipe is arranged in a shaft connection with the U-shaped movable frame and in a threaded connection with the sliding seat; and the two ends of the rotating pipe are respectively connected with a silica gel ball through bolts.

Preferably, the U-shaped movable frame is connected to the upper end of the movable seat through a bolt; the U-shaped movable frame is arranged at the upper end of the U-shaped supporting seat.

Preferably, the upper end of the inverted U-shaped frame is bolted to the lower end of the sliding seat and is arranged inside the U-shaped movable frame.

Preferably, the grinding motor is an alternating current motor with the model number of YE 3.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, removal support frame, locking ring, puller bolt, the fixing base, the frame of polishing, the setting of polishing motor and wheel of polishing is favorable to in the crossing of work through locking ring contact fixing base, conveniently carries out the fixed work to the frame of polishing, prevents to remove the influence work of polishing at the in-process frame of polishing.

2. The utility model discloses in, the type of falling U frame, the tight seat in oblique T type top, the roating seat rotates the setting of seat and the tight spring in top, is favorable to promoting the tight seat in oblique T type top through the tight spring in top in work, then through the roating seat with rotate and produce the extrusion force between the seat, the work is being fixed and is being dismantled to the work piece to the convenience.

3. The utility model discloses in, the U type remove the frame, the sliding seat, screwed pipe and rotating tube and the setting of the type of falling U frame are favorable to at the rotatory rotating tube of work, drive the screwed pipe and rotate, then remove around the drive type of falling U frame, the work of polishing is carried out to the convenient in-process that polishes drive work piece back-and-forth movement.

4. The utility model discloses in, removal support frame, the rotary rod, the wheel is removed to the second, the rotary disk, the setting of hand pole and fixing base and the frame of polishing is favorable to rotating the hand rocker in work, drives rotary disk and second and removes the wheel and rotate, the frame of polishing removes work conveniently at work.

5. The utility model discloses in, the type of falling U frame, the tight seat in oblique T type top, the roating seat, the rotating electrical machines with rotate the setting of seat, be favorable to rotating the seat through the rotating electrical machines drive and rotate at work, the convenience carries out work piece rotation work when polishing the work piece.

6. The utility model discloses in, U type supporting seat, first deep groove ball bearing, second deep groove ball bearing, the threaded rod removes the setting of seat and first removal wheel, is favorable to rotating the threaded rod in work, then through the threaded rod with remove a threaded connection setting, the drive removes the seat and removes, conveniently carry out work piece removal work at work.

7. The utility model discloses in, the frame of polishing, shielding plate, grinding motor, the setting of wheel of polishing and the type of falling U frame is favorable to sheltering from work through the shielding plate in work, the dust pollution operational environment who produces when preventing to polish.

Drawings

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

Fig. 2 is a schematic structural diagram of the movable locking support frame structure of the present invention.

Fig. 3 is a schematic structural diagram of the rotatable fixing frame structure of the present invention.

Fig. 4 is a schematic structural view of the structure of the rotary seat capable of buffering and tightening according to the present invention.

Fig. 5 is a side view of the rotatable mount structure of the present invention.

In the figure:

1. polishing the support table; 2. a support bar; 3. a U-shaped supporting seat; 4. a fixed seat; 5. a fixing plate; 6. the locking support frame structure can be moved; 61. moving the support frame; 62. locking a ring; 63. jacking the bolt; 64. rotating the rod; 65. a second moving wheel; 66. rotating the disc; 67. a hand lever; 7. the fixing frame structure can be rotated and moved; 71. an inverted U-shaped frame; 72. an inclined T-shaped jacking seat; 73. a rotating base; 74. a rotating electric machine; 75. A rotating seat; 76. the spring is tightly propped; 8. the rotary seat structure can be buffered and tightly propped; 81. a U-shaped movable frame; 82. a push rod; 83. a sliding seat; 84. a threaded pipe; 85. rotating the tube; 9. a polishing frame; 10. a shielding plate; 11. polishing the motor; 12. grinding the wheel; 13. a first deep groove ball bearing; 14. a second deep groove ball bearing; 15. a threaded rod; 16. a movable seat; 17. a first moving wheel.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a machining polishing device comprises a polishing support table 1, a support rod 2, a U-shaped support seat 3, a fixed seat 4, a fixed plate 5, a movable locking support frame structure 6, a rotatable and movable fixed frame structure 7, a buffable jacking rotary seat structure 8, a polishing frame 9, a shielding plate 10, a polishing motor 11, a polishing wheel 12, a first deep groove ball bearing 13, a second deep groove ball bearing 14, a threaded rod 15, a movable seat 16 and a first movable wheel 17, wherein the upper end of the support rod 2 is respectively bolted at the four corners of the lower end of the polishing support table 1; the U-shaped supporting seat 3 is connected to the left side of the upper end of the polishing supporting table 1 through a bolt; the fixed seat 4 is connected to the right side of the upper end of the polishing support table 1 through a bolt; the fixed plate 5 is connected to the left side of the upper end of the polishing support table 1 through a bolt; the movable locking support frame structure 6 is arranged in the middle of the upper inside of the fixed seat 4; the rotatable movable fixed frame structure 7 is arranged on the upper side of the buffer abutting rotary seat structure 8; the rotary seat structure 8 capable of being buffered and tightly propped is arranged at the upper end of the movable seat 16; the polishing frame 9 is arranged at the upper end of the movable locking support frame structure 6; the upper end of the grinding frame 9 is connected to the right side of the lower end of the shielding plate 10 through a bolt; the grinding motor 11 is connected to the middle position of the lower part of the front surface of the grinding frame 9 through a bolt; the grinding wheel 12 is connected to the outer wall of the output shaft of the grinding motor 11 through bolts; the first deep groove ball bearing 13 is embedded in the middle position inside the right side of the U-shaped supporting seat 3; the second deep groove ball bearing 14 is embedded in the middle of the lower side of the fixing plate 5; the right side of the threaded rod 15 is inserted into the inner ring of the first deep groove ball bearing 13; the left side of the threaded rod 15 penetrates through the inner ring of the second deep groove ball bearing 14; the first moving wheels 17 are respectively connected with the four corners of the lower end of the moving seat 16 through bolts; the movable seat 16 is inserted in the middle position of the upper inner part of the U-shaped support seat 3 in a sliding way; the threaded rod 15 penetrates through the middle position inside the lower side of the movable seat 16 and is in threaded connection with the movable seat; the movable locking support frame structure 6 comprises a movable support frame 61, a locking ring 62, a jacking bolt 63, a rotating rod 64, a second moving wheel 65, a rotating disk 66 and a hand lever 67, wherein the locking ring 62 is sleeved in the middle of the outer wall of the movable support frame 61 in a sliding manner; the puller bolt 63 is in threaded connection with the middle position of the front surface of the locking ring 62; the rotating rod 64 is axially connected to the middle position inside the lower side of the movable supporting frame 61; the second moving wheel 65 is bolted at the middle position of the outer wall of the rotating rod 64; the rotating disc 66 is bolted on the outer wall of the front surface of the rotating rod 64; the hand rocker 67 is coupled to the middle position of the upper part of the front surface of the rotating disc 66 in a shaft manner; after the workpiece is fixed, the movable support frame 61 is pushed to move, the movable support frame 61 is moved to a proper position, then the puller bolt 63 is loosened, the locking ring 62 is moved to the upper end of the fixed seat 4, the puller bolt 63 is screwed, the grinding frame 9 is conveniently supported, and meanwhile, the grinding wheel 12 is in contact with the workpiece, so that the workpiece is conveniently ground.

In this embodiment, referring to fig. 3, the rotatable and movable fixing frame structure 7 includes an inverted U-shaped frame 71, an inclined T-shaped tightening seat 72, a rotating seat 73, a rotating motor 74, a rotating seat 75 and a tightening spring 76, wherein the inclined T-shaped tightening seat 72 penetrates through a middle position inside a front surface of the inverted U-shaped frame 71; the rotating seat 73 is axially connected to the middle position inside the rear surface of the inclined T-shaped jacking seat 72; the rotating motor 74 is connected with the middle position of the rear surface of the inverted U-shaped frame 71 through a bolt; the rotating seat 75 is connected to the outer wall of the output shaft of the rotating motor 74 through bolts; the jacking spring 76 is sleeved on the outer wall of the inclined T-shaped jacking seat 72; carry out the during operation and use external conductor switch-on external power source, grasp the front end of oblique T type top tight seat 72 and stimulate, drive roating seat 73 and remove, then the work piece that needs to polish is placed between roating seat 73 and rotation seat 75, promote oblique T type top tight seat 72 through pushing up tight spring 76, make roating seat 73 and rotate and produce pressure between the seat 75, conveniently carry out work piece fixing work at work, then rotation threaded rod 15, set up with removing 16 threaded connection through threaded rod 15, make and remove 16 drive equipment and remove to suitable position to the right side.

In this embodiment, referring to fig. 4, the buffable tightening rotary base structure 8 includes a U-shaped moving frame 81, a pushing rod 82, a sliding base 83, a threaded pipe 84 and a rotating pipe 85, wherein the pushing rod 82 is bolted to the upper left side of the U-shaped moving frame 81; the sliding seat 83 is arranged in the middle of the top end inside the U-shaped moving frame 81; the threaded pipe 84 penetrates through the upper middle position of the U-shaped moving frame 81 and the middle position of the sliding seat 83; the rotating pipe 85 penetrates through the middle position inside the front surface of the threaded pipe 84; when the workpiece contacts the polishing wheel 12, an external power switch is turned on, so that the polishing motor 11 drives the polishing wheel 12 to rotate and polish the workpiece, then the rotating pipe 85 is rotated to drive the threaded pipe 84 to rotate, and the sliding seat 83 and the inverted U-shaped frame 71 are driven to move back and forth in the rotating process of the threaded pipe 84, so that the surface of the workpiece can be conveniently polished in work.

In this embodiment, specifically, the outer wall of the threaded rod 15 is in interference fit with the inner rings of the first deep groove ball bearing 13 and the second deep groove ball bearing 14 respectively; the first moving wheel 17 is arranged in contact with the bottom end of the U-shaped supporting seat 3.

In this embodiment, specifically, the tightening bolt 63 is disposed in contact with the movable support frame 61; the movable support frame 61 is an inverted U-shaped stainless steel frame.

In this embodiment, specifically, the upper end of the movable support frame 61 is bolted to the lower end of the grinding frame 9; the lower end of the grinding wheel 12 is arranged at the middle position inside the upper side of the movable support frame 61; the lower end of the movable support frame 61 is inserted in the middle of the upper inner part of the fixed seat 4 in a sliding manner; the second moving wheel 65 is arranged in contact with the bottom end of the inner part of the fixed seat 4.

In this embodiment, specifically, the tightening spring 76 is disposed between the inner wall of the front surface of the inverted U-shaped frame 71 and the inclined T-shaped tightening seat 72; the inner walls of the rotating seat 73 and the rotating seat 75 are respectively provided with anti-skid protrusions.

In this embodiment, specifically, the threaded pipe 84 is axially connected to the U-shaped moving frame 81 and is threadedly connected to the sliding seat 83; the two ends of the rotating pipe 85 are respectively connected with a silica gel ball through bolts.

In this embodiment, specifically, the U-shaped moving frame 81 is bolted to the upper end of the moving base 16; the U-shaped movable frame 81 is arranged at the upper end of the U-shaped supporting seat 3.

In this embodiment, the upper end of the inverted U-shaped frame 71 is bolted to the lower end of the sliding seat 83 and is disposed inside the U-shaped movable frame 81.

In this embodiment, specifically, the grinding motor 11 specifically adopts an alternating current motor with the model number of YE 3.

Principle of operation

In the utility model, when in work, an external lead is used to connect an external power supply, the front end of an inclined T-shaped jacking seat 72 is grasped to pull to drive a rotating seat 73 to move, then a workpiece to be polished is placed between the rotating seat 73 and a rotating seat 75, the inclined T-shaped jacking seat 72 is pushed by a jacking spring 76 to generate pressure between the rotating seat 73 and the rotating seat 75, so that the workpiece is conveniently fixed in work, then a threaded rod 15 is rotated, the threaded rod 15 is in threaded connection with a moving seat 16 through the threaded rod 15, so that the moving seat 16 drives equipment to move to the right side and move to a proper position, after the workpiece is fixed, a moving support frame 61 is pushed to move, the moving support frame 61 is moved to a proper position, then the jacking bolt 63 is loosened, the locking ring 62 is moved to the upper end of a fixed seat 4 to screw the jacking bolt 63, so that the polishing frame 9 is conveniently supported, meanwhile, the grinding wheel 12 is in contact with a workpiece, so that the workpiece is conveniently ground, an external power switch is turned on when the workpiece is in contact with the grinding wheel 12, the grinding motor 11 drives the grinding wheel 12 to rotate and grind the workpiece, then the rotating pipe 85 is rotated to drive the threaded pipe 84 to rotate, the sliding seat 83 and the inverted U-shaped frame 71 are driven to move back and forth in the rotating process of the threaded pipe 84, and the surface of the workpiece is conveniently ground in work.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims (9)

1. The machining grinding device is characterized by comprising a grinding support table (1), a supporting rod (2), a U-shaped support seat (3), a fixed seat (4), a fixed plate (5), a movable locking support frame structure (6), a rotatable movable fixed frame structure (7), a buffering and jacking rotary seat structure (8), a grinding frame (9), a shielding plate (10), a grinding motor (11), a grinding wheel (12), a first deep groove ball bearing (13), a second deep groove ball bearing (14), a threaded rod (15), a movable seat (16) and a first movable wheel (17), wherein the upper end of the supporting rod (2) is respectively connected with four corners of the lower end of the grinding support table (1) through bolts; the U-shaped supporting seat (3) is connected to the left side of the upper end of the polishing supporting table (1) through a bolt; the fixed seat (4) is connected to the right side of the upper end of the polishing support table (1) through bolts; the fixed plate (5) is connected to the left side of the upper end of the polishing support table (1) through bolts; the movable locking support frame structure (6) is arranged in the middle of the upper inside of the fixed seat (4); the rotatable movable fixed frame structure (7) is arranged on the upper side of the buffable jacking rotary seat structure (8); the rotary seat structure (8) capable of being buffered and tightly propped is arranged at the upper end of the movable seat (16); the polishing frame (9) is arranged at the upper end of the movable locking support frame structure (6); the upper end of the grinding frame (9) is connected to the right side of the lower end of the baffle plate (10) through a bolt; the polishing motor (11) is connected to the middle position of the lower part of the front surface of the polishing frame (9) through a bolt; the polishing wheel (12) is connected to the outer wall of the output shaft of the polishing motor (11) through bolts; the first deep groove ball bearing (13) is embedded in the middle of the inner part of the right side of the U-shaped supporting seat (3); the second deep groove ball bearing (14) is embedded in the middle of the lower side of the fixing plate (5); the right side of the threaded rod (15) is inserted into the inner ring of the first deep groove ball bearing (13); the left side of the threaded rod (15) penetrates through the inner ring of the second deep groove ball bearing (14); the first moving wheels (17) are respectively connected with the four corners of the lower end of the moving seat (16) through bolts; the movable seat (16) is inserted in the middle position of the upper inner part of the U-shaped support seat (3) in a sliding manner; the threaded rod (15) penetrates through the middle position inside the lower side of the movable seat (16) and is arranged in a threaded connection mode; the movable locking support frame structure (6) comprises a movable support frame (61), a locking ring (62), a jacking bolt (63), a rotating rod (64), a second movable wheel (65), a rotating disk (66) and a hand-operated rod (67), wherein the locking ring (62) is sleeved in the middle of the outer wall of the movable support frame (61) in a sliding manner; the jacking bolt (63) is in threaded connection with the middle position of the front surface of the locking ring (62); the rotating rod (64) is coupled to the middle position inside the lower side of the movable support frame (61) in a shaft mode; the second moving wheel (65) is connected to the middle position of the outer wall of the rotating rod (64) through a bolt; the rotating disc (66) is connected to the outer wall of the front surface of the rotating rod (64) through bolts; the hand rocker (67) is coupled to the middle position of the upper part of the front surface of the rotating disc (66).

2. A machining grinding device according to claim 1, characterized in that said rotatably movable holder structure (7) comprises an inverted U-shaped holder (71), an inclined T-shaped tightening seat (72), a rotary seat (73), a rotary motor (74), a rotary seat (75) and a tightening spring (76), said inclined T-shaped tightening seat (72) penetrating through a front surface of the inverted U-shaped holder (71) at an intermediate position therein; the rotating seat (73) is axially connected to the middle position inside the rear surface of the inclined T-shaped jacking seat (72); the rotating motor (74) is connected to the middle position of the rear surface of the inverted U-shaped frame (71) through a bolt; the rotating seat (75) is connected to the outer wall of the output shaft of the rotating motor (74) through bolts; the jacking spring (76) is sleeved on the outer wall of the inclined T-shaped jacking seat (72).

3. A machining grinding device according to claim 1, characterized in that said buffable rotating base structure (8) comprises a U-shaped moving frame (81), a push rod (82), a sliding base (83), a threaded pipe (84) and a rotating pipe (85), said push rod (82) being bolted to the upper left side of the U-shaped moving frame (81); the sliding seat (83) is arranged in the middle of the top end in the U-shaped moving frame (81); the threaded pipe (84) respectively penetrates through the middle position of the upper inside of the U-shaped moving frame (81) and the middle position of the inside of the sliding seat (83); the rotating pipe (85) penetrates through the middle position inside the front surface of the threaded pipe (84).

4. A machining grinding device according to claim 1, characterized in that the outer wall of the threaded rod (15) is in interference fit with the inner rings of the first deep groove ball bearing (13) and the second deep groove ball bearing (14), respectively; the first movable wheel (17) is in contact with the bottom end of the U-shaped support seat (3).

5. A machining milling device according to claim 1, characterized in that said jack bolt (63) is arranged in contact with the mobile support frame (61); the movable support frame (61) is an inverted U-shaped stainless steel frame.

6. A machining grinding device according to claim 1, characterized in that the upper end of the movable support frame (61) is bolted to the lower end of the grinding frame (9); the lower end of the grinding wheel (12) is arranged in the middle of the upper inner part of the movable support frame (61); the lower end of the movable support frame (61) is inserted in the middle of the upper inner part of the fixed seat (4) in a sliding manner; the second movable wheel (65) is arranged in contact with the bottom end of the interior of the fixed seat (4).

7. A machining grinding device according to claim 2, characterized in that said urging spring (76) is provided between the inner wall of the front surface of the inverted U-shaped frame (71) and the inclined T-shaped urging seat (72); and anti-skid protrusions are respectively arranged on the inner walls of the rotating seat (73) and the rotating seat (75).

8. A machining grinding device according to claim 3, characterized in that the threaded pipe (84) is arranged in a shaft connection with the U-shaped movable frame (81) and in a threaded connection with the sliding seat (83); the two ends of the rotating pipe (85) are respectively connected with a silica gel ball through bolts.

9. A machining milling device according to claim 3, characterised in that the U-shaped mobile frame (81) is bolted to the upper end of the mobile base (16); the U-shaped moving frame (81) is arranged at the upper end of the U-shaped supporting seat (3).

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