CN219767384U

CN219767384U - Special flexible center frame of slender axles

Info

Publication number: CN219767384U
Application number: CN202321080419.3U
Authority: CN
Inventors: 舒服; 林欣; 李清平
Original assignee: Shanghai Wuben Tool Machinery Co ltd
Current assignee: Shanghai Wuben Tool Machinery Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-09-29
Anticipated expiration: 2033-05-08

Abstract

The utility model belongs to the technical field of clamping devices, in particular to a special flexible center frame for an slender shaft, which aims at the problems that the existing center frame is convenient to fix and clamp, the connection installation position is convenient to adjust and the stress position is consistent, and the scheme is proposed at present, and the special flexible center frame comprises a fixed rod, an adjusting assembly and an inclined rod, wherein one side of the fixed rod is provided with a plurality of adjusting assemblies, the outer wall of one end of the adjusting assembly is slidingly connected with the inclined rod, the top side wall and the bottom side wall of the inclined rod are slidingly connected with installation frames, a processing shaft is arranged between the two installation frames and is close to one side of each other, the outer wall of the processing shaft is provided with a plurality of clamping wheels, and the clamping wheels mutually slide with the inside of the installation frames through an extruding assembly; an adjustment assembly for supporting includes a fixed block and an arcuate lever. The utility model has the advantages of convenient installation and fixation, avoiding looseness and convenient adjustment of the attaching and connecting positions according to the needs.

Description

Special flexible center frame of slender axles

Technical Field

The utility model relates to the technical field of clamping devices, in particular to a flexible center frame special for an slender shaft.

Background

The center frame is a random accessory of the numerical control machine tool, when the slender shaft with poor processing rigidity, the thick and long workpiece which cannot pass through a main shaft hole of the lathe and the slender shaft with higher requirement on the coaxiality of the hole and the excircle are processed, the center frame is often adopted to strengthen the rigidity, the processing coaxiality is ensured, and the center frame is a necessary auxiliary device when the slender shaft is processed, and the traditional center frame is usually supported at three points and is manually adjusted.

When processing, slender axles are long, a plurality of center frames can be arranged generally due to the fact that the length of the center frames is long, one end of each center frame far away from a processing position is provided with larger displacement and shaking in reciprocating vibration, the center frames are required to be capable of effectively preventing reverse movement and rotation, clamping is avoided, meanwhile, the three-point center frames are sequentially rotated to be fixed, the fixed positions of the three-point center frames are inconvenient to adjust and use, and the three-point center frames are not convenient enough to sequentially adjust when different workpieces are processed.

And the outside fixed knot of traditional three-point type center rest is annular in general, and because its connection structure position angle of opening and closing is comparatively fixed, all is located top and one side generally, and then leads to when a plurality of center rest combination use, fixed position comparatively unifies, and certain angle and direction can appear lax and the condition of removal more easily.

Disclosure of Invention

The flexible central frame special for the slender shaft solves the problems that the central frame is convenient to fix and clamp, the connecting and mounting positions are convenient to adjust and the stress positions are consistent.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the flexible center frame comprises a fixed rod, an adjusting assembly and an inclined rod, wherein a plurality of adjusting assemblies are arranged on one side of the fixed rod, the outer wall of one end of the adjusting assembly is connected with the inclined rod in a sliding manner, the top and bottom side walls of the inclined rod are respectively connected with a mounting frame in a sliding manner, a processing shaft is arranged between the two mounting frames and is close to one side of each other, a plurality of clamping wheels are arranged on the outer wall of the processing shaft, and the clamping wheels slide with the inside of the mounting frames through an extrusion assembly;

the adjusting component is used for supporting and comprises a fixed block and an arc-shaped rod, and the outer wall of the arc-shaped rod penetrates through one end of the inside of the fixed block to slide;

the inclined rod is used for adjusting and clamping, a transmission assembly is arranged in the inclined rod, the transmission assembly is connected with the installation frame in a mutually rotating mode through a sliding block, and the installation frame is inclined ;

the extrusion assembly is used for fixing and clamping, two ends of the extrusion assembly are connected with the clamping wheels in a mutually rotating mode, and the extrusion assembly is connected with the mounting frame in a mutually rotating mode through the rotating screw rod.

Preferably, the fixing block is clamped with the outer wall of the fixing rod, the outer wall of the fixing rod is prismatic, and brackets are arranged at two ends of the fixing rod;

the arc-shaped rod is semicircular, a sliding hole corresponding to the arc-shaped rod is formed in one end, far away from the fixing rod, of the fixing block, and a fixing bolt penetrates through one side, close to the arc-shaped rod, of the fixing block.

Preferably, the arc-shaped holes corresponding to the arc-shaped rods are formed in the two ends of the inclined rod, extrusion bolts are arranged at positions, close to the arc-shaped holes, of the outer walls of the inclined rod, and the extrusion bolts penetrate through the inner parts of the inclined rod and are mutually attached to the outer walls of the arc-shaped rods.

Preferably, the transmission assembly comprises a screw rod and a worm wheel, the center of the screw rod is fixedly connected with the worm wheel, one side of the worm wheel is connected with a worm, one end of the worm penetrates through the side wall of the inclined rod to be connected with a knob, and the worm is connected with the inclined rod in a mutually rotating manner through a bearing.

Preferably, the inside of the inclined rod is provided with a chute corresponding to the transmission assembly, two ends of the screw rod are provided with surrounding threads in opposite directions, and the sliding block is in sliding connection with the chute inside the inclined rod.

Preferably, the extrusion assembly comprises a moving block and an adjusting plate, wherein a plurality of through holes are formed in the adjusting plate, and the two adjusting plates on one side of the moving block are fixed through mounting bolts;

the regulating plate is connected with the movable block in a mutually rotating way, the inside of the movable block is connected with the rotating screw rod in a mutually rotating way, and the outer wall of the movable block and the mounting frame slide mutually.

Preferably, the clamping wheel is connected with the mounting plate in a rotating way near one end of the mounting frame, the top of the mounting plate is provided with a containing groove which slides mutually with two side walls at the bottom of the mounting frame, and one side edge of the mounting plate is connected with the adjusting plate in a rotating way.

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

1. when using, place the processing axle between two centre gripping wheels, and then can avoid dropping, at this moment restart drive assembly, and then make the worm rotate and drive the worm wheel rotation, the worm wheel drives the lead screw and rotates, can drive the sliding block through the lead screw and slide, make the centre gripping wheel drive the processing axle remove, make the centre gripping wheel of processing axle top and bottom all laminate rather than each other, realize the centre gripping fixedly, the installing frame carries out unanimous regulation from top to bottom through drive assembly, and then can effectually avoid single centre gripping wheel to fix not tight condition enough, and through the interconnect of worm wheel and worm, also can effectually avoid drive assembly reverse rotation, and then avoid the installing frame to relax.

2. And when setting up, can also be convenient rotate extrusion bolt, and then the fixed connection of hang lever and arc pole has been removed, and then the hang lever is removed along the arc pole, just can be convenient drive the installation frame through drive assembly and remove, thereby make the inside extrusion subassembly of installation frame drive the centre gripping wheel through the mounting panel and remove, can effectually adjust the position of centre gripping wheel and processing axle junction, and can also rotate fixing bolt when using, and then remove the fixed of arc pole and fixed block, adjust the arc pole simultaneously, change its position, and then can be further enlarge the mobilizable position of hang lever, and then realized the adjustment to the bigger angle of centre gripping wheel, can effectually avoid the condition that fixed position is unanimous, make the device more stable to the centre gripping of processing axle when using.

Drawings

FIG. 1 is a schematic view of a flexible central frame dedicated for an slender shaft according to the present utility model;

FIG. 2 is a side view of a flexible center frame dedicated for an elongated shaft according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the joint between the inclined rod of the special flexible center frame for the slender shaft and the adjusting component;

FIG. 4 is a schematic view of the internal structure of a flexible central frame tilt rod dedicated for an slender shaft according to the present utility model;

fig. 5 is a schematic structural view of a flexible central frame extrusion assembly special for an slender shaft.

In the figure: 1. a fixed rod; 2. an adjustment assembly; 201. a fixed block; 202. an arc-shaped rod; 203. a fixing bolt; 3. an inclined lever; 301. an arc-shaped hole; 302. extruding the bolt; 4. a mounting frame; 401. a sliding block; 402. rotating the screw rod; 5. a clamping wheel; 501. a mounting plate; 502. a receiving groove; 6. a transmission assembly; 601. a screw rod; 602. a worm wheel; 603. a worm; 7. an extrusion assembly; 701. a moving block; 702. an adjusting plate; 703. installing a bolt; 8. and (5) machining the shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 and 2, a flexible central frame special for an slender shaft comprises a fixed rod 1, an adjusting component 2 and an inclined rod 3, wherein one side of the fixed rod 1 is provided with a plurality of adjusting components 2, one end outer wall of the adjusting component 2 is slidably connected with the inclined rod 3, the top and bottom side walls of the inclined rod 3 are slidably connected with mounting frames 4, a processing shaft 8 is arranged between two mounting frames 4 close to each other, the outer wall of the processing shaft 8 is provided with a plurality of clamping wheels 5, and the clamping wheels 5 mutually slide with the inside of the mounting frames 4 through an extrusion component 7; an adjusting assembly 2 for supporting, which comprises a fixed block 201 and an arc-shaped rod 202, wherein the outer wall of the arc-shaped rod 202 penetrates through one end of the inside of the fixed block 201 to slide; the inclined rod 3 is used for adjusting and clamping, a transmission assembly 6 is arranged in the inclined rod 3, the transmission assembly 6 is connected with the mounting frame 4 in a mutual rotation mode through a sliding block 401, and the mounting frame 4 is inclined ; a pressing assembly 7 for performing a fixed clamping.

It should be further noted that both ends of the pressing assembly 7 are rotatably connected to the clamping wheel 5, and the pressing assembly 7 is rotatably connected to the mounting frame 4 by the rotating screw 402.

Referring to fig. 3, a fixing block 201 is clamped with the outer wall of a fixing rod 1, the outer wall of the fixing rod 1 is prismatic, and brackets are mounted at two ends of the fixing rod 1; the arc rod 202 is semi-circular, the sliding hole that corresponds with the arc rod 202 has been seted up to the inside one end that keeps away from dead lever 1 of dead lever 201, and one side that dead lever 201 is close to arc rod 202 runs through and is provided with fixing bolt 203, the arc hole 301 that corresponds with arc rod 202 has all been seted up to the inside both ends of hang lever 3, rotate extrusion bolt 302, and then the fixed connection of hang lever 3 and arc rod 202 has been relieved, and then remove hang lever 3 along arc rod 202, just can be convenient make hang lever 3 drive installation frame 4 through drive assembly 6 and remove, thereby make the inside extrusion assembly 7 of installation frame 4 drive the centre gripping wheel 5 through mounting panel 501 and removed, can effectually adjust the position of centre gripping wheel 5 and processing axle 8 junction, and can also rotate fixing bolt 203 when using, and then remove the fixed of arc rod 202 and dead lever 201, adjust the arc rod 202 simultaneously, change its position, and then can further enlarge the mobilizable position of hang lever 3, and then realized the adjustment to the bigger angle of centre gripping wheel 5.

It should be further noted that, the outer walls of the inclined rods 3 are provided with pressing bolts 302 at positions close to the arc holes 301, and the pressing bolts 302 penetrate through the inside of the inclined rods 3 and are mutually attached to the outer walls of the arc rods 202.

Referring to fig. 4, the transmission assembly 6 includes a screw rod 601 and a worm wheel 602, the center of the screw rod 601 is fixedly connected with the worm wheel 602, one side of the worm wheel 602 is connected with a worm 603, one end of the worm 603 penetrates through the side wall of the inclined rod 3 to be connected with a knob, the worm 603 is connected with the inclined rod 3 in a rotating manner through a bearing, a sliding groove corresponding to the transmission assembly 6 is formed in the inclined rod 3, the transmission assembly 6 is started, the worm 603 is further enabled to rotate to drive the worm wheel 602 to rotate, the worm wheel drives the screw rod 601 to rotate, the sliding block 401 can be driven to slide through the screw rod 601, and then the two installation frames 4 are enabled to be mutually close to extrusion.

It should be further noted that, the two ends of the screw rod 601 are provided with surrounding threads in opposite directions, and the sliding block 401 is slidably connected with the sliding groove inside the tilting rod 3.

Referring to fig. 5, the pressing assembly 7 includes a moving block 701 and an adjusting plate 702, wherein a plurality of through holes are formed in the adjusting plate 702, and two adjusting plates 702 at one side of the moving block 701 are fixed by mounting bolts 703; the adjusting plate 702 is connected with the moving block 701 in a mutually rotating way, the screw rod 402 is rotated, the moving block 701 is driven to move, and then the moving block 701 can pull the mounting plates 501 on two sides to move through the adjusting plate 702.

It should be further noted that the inside of the moving block 701 is rotatably connected to the rotating screw 402, and the outer wall of the moving block 701 slides with the mounting frame 4.

Referring to fig. 5, the clamping wheel 5 is close to one end of the installation frame 4 and rotates and is connected with the mounting plate 501, and the holding tank 502 sliding with the two side walls of the bottom of the installation frame 4 is provided at the top of the mounting plate 501, one side edge of the mounting plate 501 is connected with the adjusting plate 702 in a rotating manner, and the machining shaft 8 can be conveniently and directly placed between the two clamping wheels 5, so that falling can be avoided, the two installation frames 4 are mutually close to each other and extruded, the clamping wheel 5 drives the machining shaft 8 to move, and the clamping wheels 5 at the top and the bottom of the machining shaft 8 are mutually attached to each other, so that clamping fixation is realized.

Working principle: when the screw rod 402 is used, the screw rod 402 can be conveniently rotated, the moving block 701 is driven to move, the moving block 701 can pull the mounting plates 501 on two sides to move through the adjusting plate 702, the mounting plates 501 slide with the mounting frames 4 along the accommodating groove 502, the clamping wheels 5 are driven to be close to each other, the distance between the clamping wheels 5 is smaller than the diameter of the processing shaft 8, the processing shaft 8 can be conveniently and directly placed between the two clamping wheels 5, the falling can be avoided, the transmission assembly 6 is restarted, the worm 603 is driven to rotate to drive the worm wheel 602 to rotate, the worm wheel drives the screw rod 601 to rotate, the sliding block 401 can be driven to slide through the screw rod 601, the two mounting frames 4 are driven to be close to each other to be extruded, the clamping wheels 5 drive the processing shaft 8 to move, the clamping wheels 5 at the top and the bottom of the processing shaft 8 are mutually attached, realize clamping fixation, simultaneously because two clamping wheels 5 all move through this extrusion subassembly 7, and installation frame 4 carries out unanimous regulation from top to bottom through drive assembly 6, and then can effectually avoid single clamping wheel 5 to fix the inseparable condition, and through the interconnect of worm wheel 602 and worm 603, also can effectually avoid drive assembly 6 reverse rotation, and then avoid installation frame 4 reverse movement to make clamping wheel 5 and processing axle 8 to be connected lax, and when setting up, can also convenient rotation extrusion bolt 302, and then the fixed connection of tilting lever 3 and arc pole 202 has been removed, and then move tilting lever 3 along arc pole 202, just can be convenient make tilting lever 3 drive installation frame 4 through drive assembly 6 and remove, thereby make the inside extrusion subassembly 7 of installation frame 4 drive clamping wheel 5 through mounting panel 501 and removed, can effectual adjustment centre gripping wheel 5 and the position of processing axle 8 junction to can also rotate fixing bolt 203 when using, and then relieve the fixed of arc pole 202 and fixed block 201, adjust arc pole 202 simultaneously, change its position, and then can further enlarge the mobilizable position of inclined rod 3, and then realized the adjustment to the bigger angle of centre gripping wheel 5, can effectually avoid the condition that fixed position is unanimous, make the device more stable to the centre gripping of processing axle 8 when using.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a special flexible center frame of slender axles, includes dead lever (1), adjusting part (2) and hang lever (3), its characterized in that, one side of dead lever (1) is provided with a plurality of adjusting part (2), and the one end outer wall sliding connection of adjusting part (2) has hang lever (3), the top and the bottom lateral wall of hang lever (3) all sliding connection have installing frame (4), all be provided with processing axle (8) between two installing frame (4) are close to one side each other, the outer wall of processing axle (8) is provided with a plurality of clamping wheels (5), and the inside mutual slip of clamping wheel (5) through extrusion subassembly (7) and installing frame (4);

the adjusting assembly (2) is used for supporting and comprises a fixed block (201) and an arc-shaped rod (202), and the outer wall of the arc-shaped rod (202) penetrates through one end of the inside of the fixed block (201) to slide;

the inclined rod (3) is used for adjusting and clamping, a transmission assembly (6) is arranged in the inclined rod (3), the transmission assembly (6) is connected with the installation frame (4) in a mutually rotating mode through a sliding block (401), and the installation frame (4) is inclined ;

the extrusion assembly (7) is used for fixing and clamping, two ends of the extrusion assembly (7) are connected with the clamping wheels (5) in a mutually rotating mode, and the extrusion assembly (7) is connected with the mounting frame (4) in a mutually rotating mode through the rotating screw rod (402).

2. The flexible central frame special for the slender shaft according to claim 1, wherein the fixing block (201) is clamped with the outer wall of the fixing rod (1), the outer wall of the fixing rod (1) is prismatic, and brackets are arranged at two ends of the fixing rod (1);

the arc-shaped rod (202) is semicircular, a sliding hole corresponding to the arc-shaped rod (202) is formed in one end, far away from the fixed rod (1), of the fixed block (201), and a fixing bolt (203) penetrates through one side, close to the arc-shaped rod (202), of the fixed block (201).

3. The flexible center frame special for the slender shaft according to claim 1, wherein the arc-shaped holes (301) corresponding to the arc-shaped rods (202) are formed in the inner portions of the two ends of the inclined rod (3), extrusion bolts (302) are arranged at positions, close to the arc-shaped holes (301), of the outer walls of the inclined rod (3), and the extrusion bolts (302) penetrate through the inner portions of the inclined rod (3) and are mutually attached to the outer walls of the arc-shaped rods (202).

4. The flexible central frame special for the slender shaft according to claim 1, wherein the transmission assembly (6) comprises a screw rod (601) and a worm wheel (602), the center of the screw rod (601) is fixedly connected with the worm wheel (602), one side of the worm wheel (602) is connected with a worm (603), one end of the worm (603) penetrates through the side wall of the inclined rod (3) and is connected with a knob, and the worm (603) is connected with the inclined rod (3) in a mutual rotating mode through a bearing.

5. The flexible central frame special for the slender shaft according to claim 1, wherein a sliding groove corresponding to the transmission component (6) is formed in the inclined rod (3), surrounding threads in opposite directions are formed at two ends of the screw rod (601), and the sliding block (401) is in sliding connection with the sliding groove in the inclined rod (3).

6. The flexible central frame special for the slender shaft according to claim 1, wherein the extrusion assembly (7) comprises a moving block (701) and an adjusting plate (702), a plurality of through holes are formed in the adjusting plate (702), and two adjusting plates (702) on one side of the moving block (701) are fixed through mounting bolts (703);

the adjusting plate (702) is connected with the moving block (701) in a rotating way, the inside of the moving block (701) is connected with the rotating screw rod (402) in a rotating way, and the outer wall of the moving block (701) and the mounting frame (4) slide mutually.

7. The flexible center frame special for the slender shaft according to claim 1, wherein one end of the clamping wheel (5) close to the mounting frame (4) is rotatably connected with the mounting plate (501), the top of the mounting plate (501) is provided with a containing groove (502) sliding with two side walls at the bottom of the mounting frame (4), and one side edge of the mounting plate (501) is rotatably connected with the adjusting plate (702).