CN216226935U

CN216226935U - Lathe knife rest structure convenient to pressfitting

Info

Publication number: CN216226935U
Application number: CN202122667812.XU
Authority: CN
Inventors: 陈国�
Original assignee: Shandong Huayu University of Technology
Current assignee: Dezhou Guanlu Precision Machinery Manufacturing Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-08
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a machine tool knife rest structure convenient for pressing in the technical field of machine tools, which comprises fixed blocks, a fixed seat, sliding blocks, an installation block, an installation groove, a roll shaft and a clamping space, wherein the two sliding blocks are driven by a driving component to move relatively, the fixed seat is provided with a buffer component, the buffer component is provided with a vibration sensor, and the vibration sensor abuts against the surface of one sliding block. Through two sliding blocks of drive assembly drive and be close to relatively for the roller on two installation pieces presss from both sides the tight slender axles of treating processing jointly, detect the vibrations power of sliding block through vibrations sensor in addition, when the roller is not enough to the clamp force of slender axles, can produce vibrations when slender axles rotate, detect the vibrations power of sliding block by vibrations sensor, when vibrations power is too big, the vibrations signal that vibrations sensor detected will feed back to external control ware, and then can in time adjust the roller to the tight dynamics of clamp of slender axles.

Description

Lathe knife rest structure convenient to pressfitting

Technical Field

The utility model relates to the technical field of machine tools, in particular to a tool rest structure of a machine tool, which is convenient to press.

Background

When a machine tool is used for turning a slender shaft, the slender shaft is likely to deform when being cut by a turning tool, and then cutting precision is affected, so that a follow rest can be used for radially supporting the slender shaft, the follow rest is an auxiliary device for radially supporting a rotating workpiece, and during machining, the follow rest and a cutter move axially together along the workpiece.

Through the retrieval, chinese patent No. CN206305793U discloses a follower rest for digit control machine tool convenient to dismantle, including follower rest body and joint structure, the follower rest body includes support and knife rest, the bottom of knife rest is provided with the clamp plate, one side of clamp plate is provided with the dish spring, one side of dish spring is provided with hydraulic cylinder, the top of support is provided with the joint structure, the joint structure includes lower compressed particleboard and last compressed particleboard, the inside of lower compressed particleboard is provided with indent arc clamping surface, the inboard of indent arc clamping surface is provided with the slipmat, the both sides of lower compressed particleboard are provided with the screw respectively, the both sides of screw are provided with the couple support respectively, the couple support passes through round pin axle and lower compressed particleboard swing joint, the one end of couple support is provided with the couple, the both sides of going up the compressed particleboard are provided with the screw, install the screw rod in the screw.

Among the above-mentioned prior art, come to support slender axles through last compressed particleboard, compressed particleboard down, when the operation, make last compressed particleboard move down through revolving the dish spring of twist, and then make and go up compressed particleboard, compressed particleboard clamp slender axles jointly down, but this kind of mode makes the operation comparatively loaded down with trivial details, and the cutting force in the unable real-time supervision slender axles course of working of present follower in addition, and then can't guarantee the machining precision of slender axles according to the actual lathe work condition.

In order to solve the problems, a tool rest structure of a machine tool convenient to press fit is provided.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a machine tool cutter rest structure convenient for pressing, and in order to solve the technical problem, the utility model provides the following technical scheme:

the utility model provides a machine tool cutter rest structure convenient for pressing, which comprises a fixed block connected with a machine tool magazine, wherein a fixed seat is arranged on the fixed block, two sliding blocks are vertically and slidably connected onto the fixed seat, mounting blocks are respectively arranged on the two sliding blocks, notch-shaped mounting grooves are formed in the outer walls of the two opposite sides of the two mounting blocks, the width of the inner side walls of the two mounting grooves is gradually reduced towards the direction far away from the opposite sides of the two mounting grooves, roll shafts are respectively and rotatably connected onto the two inner side walls of the two mounting grooves, a clamping space is enclosed between the four roll shafts, the two sliding blocks are driven by a driving assembly to relatively move, a buffering assembly is arranged on the fixed seat, a vibration sensor is arranged on the buffering assembly, and the vibration sensor abuts against the surface of one of the sliding blocks.

In the tool rest structure of the machine tool convenient for press fitting, the driving assembly comprises fixing plates arranged at the upper end and the lower end of the fixing seat, the two fixing plates are jointly and vertically connected with the driving shaft in a rotating mode, the two ends of the driving shaft in the length direction are respectively provided with a first thread section and a second thread section with opposite thread turning directions, the two sliding blocks are respectively embedded with the thread sleeves, the two thread sleeves are respectively sleeved on the first thread section and the second thread section in a threaded mode, and the driving shaft is driven to rotate by the rotating unit.

In the tool rest structure of the machine tool convenient for pressing, the rotating unit comprises a transmission seat arranged on the fixed seat, one end of the driving shaft penetrating into the transmission seat is sleeved with a worm wheel, the transmission seat is horizontally and rotatably connected with a worm, and the worm is meshed with the worm wheel.

In the machine tool rest structure convenient for press fitting, the buffer assembly comprises a support arranged on the fixed seat, a sliding sleeve is arranged on the support in a penetrating manner, a sliding rod is coaxially arranged on the sliding sleeve in a penetrating manner, the lower end of the sliding rod penetrates out of the sliding sleeve and is fixedly connected with a floating block, the vibration sensor is arranged on the floating block, a spring is sleeved on the sliding rod, and two ends of the spring in the elastic direction respectively elastically abut against the sliding sleeve and the floating block.

In the above structure of the tool rest for a machine tool convenient for press fitting, the short pin is penetrated through one end of the sliding rod penetrating into the sliding sleeve, and the outer wall of the sliding sleeve is provided with the waist-shaped hole for inserting and fitting two ends of the short pin and capable of freely sliding up and down.

Compared with the prior art, the utility model has the beneficial effects that: through two sliding blocks of drive assembly drive and be close to relatively, make the roller on two installation pieces press from both sides the tight slender axles of treating processing jointly, detect the vibrations power of sliding block through vibrations sensor in addition, when the roller is not enough to the clamp force of slender axles, can produce vibrations when slender axles rotate, the vibrations power by vibrations sensor detection sliding block, when vibrations power is too big, the vibration signal that vibrations sensor detected will feed back to external control ware, and then can in time adjust the roller to the tight dynamics of clamp of slender axles, through setting up buffer assembly, make when vibrations sensor receives great vibrations, can have the buffering protection.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the final assembly of the present invention;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

fig. 3 is an exploded view of the structure of fig. 1 with the slender shaft omitted.

In the figure: 1-fixed block, 2-first thread section, 3-sliding block, 4-thread sleeve, 5-fixed plate, 6-fixed seat, 7-transmission seat, 8-worm, 9-installation block, 10-roller shaft, 11-installation groove, 12-support, 13-sliding sleeve, 14-short pin, 15-waist-shaped hole, 16-spring, 17-floating block, 18-vibration sensor, 19-sliding rod, 20-worm wheel and 21-second thread section.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Examples

As shown in figures 1-3, a machine tool cutter rest structure convenient for pressing comprises a fixed block 1 connected with a machine tool magazine, a fixed seat 6 is arranged on the fixed block 1, two sliding blocks 3 are vertically and slidably connected on the fixed seat 6, mounting blocks 9 are respectively arranged on the two sliding blocks 3, notch-shaped mounting grooves 11 are formed in the outer walls of the two opposite sides of the two mounting blocks 9, the widths of the inner side walls of the two mounting grooves 11 are sequentially decreased towards the direction far away from the opposite sides of the two mounting grooves, roller shafts 10 are respectively and rotatably connected on the two inner side walls of the two mounting grooves 11, a clamping space is defined between the four roller shafts 10, the two sliding blocks 3 are driven by a driving component to move relatively, a buffer component is arranged on the fixed seat 6, a vibration sensor 18 is arranged on the buffer component, the sliding block sensor 18 is abutted against the surface of one of the two sliding blocks 3, a slender shaft is inserted into the clamping space, and then the two sliding blocks 3 are driven by the driving component to move relatively, make four roller 10 on two installation pieces press from both sides tight slender axles jointly, and slender axles can rotate, lathe work, can produce great vibrations to slender axles during the lathe work, through vibrations sensor real-time supervision vibrations power size, and then can judge the roller to the tight dynamics of clamp of slender axles by external control ware, when vibrations power is great, it is less to the tight dynamics of clamp of slender axles to explain the roller, perhaps explain the roller does not support tightly to slender axles, two sliding block relative movement of redrive through drive assembly this moment, in order to guarantee that the roller produces the tight effect of support to slender axles, and then guarantee the firm degree during slender axles add man-hour.

In this embodiment, drive assembly is including locating fixed plate 5 at fixed base 6 upper and lower both ends, common vertical rotation is connected with the drive shaft on two fixed plates 5, the length direction both ends of drive shaft are equipped with screw thread turning direction opposite first screw thread section 2 respectively, second screw thread section 21, respectively inlay on two sliding blocks 3 and be equipped with swivel nut 4, two swivel nuts 4 respectively screw thread suit are in first screw thread section 2, on second screw thread section 21, the drive shaft is by its rotation of rotation unit drive, rotation through the drive shaft, make two swivel nuts 4 respectively with first screw thread section 2, second screw thread section 21 screw thread closes soon, because first screw thread section 2, the screw thread turning direction of second screw thread section 21 is opposite, make two swivel nuts 4 drive two sliding block relative movement respectively.

In this embodiment, the unit rotates is including locating transmission seat 7 on fixing base 6, and worm wheel 20 has been cup jointed to the one end that the drive shaft penetrated in transmission seat 7, and transmission seat 7 is improved level and is rotated and be connected with worm 8, and worm 8 and the meshing of worm wheel 20 rotate through worm 8, and then drive worm wheel 20 and rotate to can drive the drive shaft and rotate, simple structure, and can avoid the drive shaft to rotate by oneself.

In this embodiment, the buffer assembly is including locating support 12 on fixing base 6, wear to be equipped with sliding sleeve 13 on the support 12, sliding sleeve 13 goes up coaxial wear to be equipped with slide bar 19, slide bar 19 lower extreme wears out sliding sleeve 13 and the rigid coupling has slider 17, shock sensor 18 installs on slider 17, the cover is equipped with spring 16 on the slide bar 19, the elastic direction both ends of spring 16 elasticity respectively support against sliding sleeve 13, slider 17, when the vibrating force that the slider receives is great, after vibrating force transmits to shock sensor 18, through the elastic buffer of spring 16, and then can produce the buffering protective effect to shock sensor 18, it is explicated that in addition, the vibrating force size that spring 16 guaranteed shock sensor 18 normal monitoring to the elastic supporting force size of slider 17.

In this embodiment, the short pin 14 is penetrated through by the end of the sliding rod 19 penetrating into the sliding sleeve 13, the outer wall of the sliding sleeve 13 is provided with the slotted hole 15 for inserting the two ends of the short pin 14 and freely sliding up and down, and the sliding rod 19 is prevented from separating from the sliding sleeve 13 by sliding and limiting the short pin 14 in the slotted hole 15.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A machine tool cutter rest structure convenient for pressing comprises a fixed block (1) connected with a machine tool magazine, and is characterized in that a fixed seat (6) is arranged on the fixed block (1), two sliding blocks (3) are vertically and slidably connected onto the fixed seat (6), mounting blocks (9) are respectively arranged on the two sliding blocks (3), mounting grooves (11) in a notch form are formed in the outer walls of the two opposite sides of the two mounting blocks (9), the width of the inner side walls of the two mounting grooves (11) is gradually reduced towards the direction far away from the opposite sides of the two mounting grooves, roll shafts (10) are respectively rotatably connected onto the two inner side walls of the two mounting grooves (11), a clamping space is defined between the four roll shafts (10), the two sliding blocks (3) are driven by a driving component to move relatively, and a buffer component is arranged on the fixed seat (6), and a vibration sensor (18) is arranged on the buffer component, and the vibration sensor (18) is abutted against the surface of one of the sliding blocks (3).

2. The tool rest structure of a machine tool convenient for press fitting according to claim 1, wherein the driving assembly comprises fixing plates (5) arranged at the upper end and the lower end of a fixing seat (6), two fixing plates (5) are vertically and rotatably connected with a driving shaft together, the two ends of the driving shaft in the length direction are respectively provided with a first thread section (2) and a second thread section (21) with opposite thread directions, two sliding blocks (3) are respectively embedded with a thread sleeve (4), the two thread sleeves (4) are respectively sleeved on the first thread section (2) and the second thread section (21) in a threaded manner, and the driving shaft is driven to rotate by a rotating unit.

3. The tool rest structure of a machine tool convenient for pressing according to claim 2, wherein the rotating unit comprises a transmission seat (7) arranged on the fixed seat (6), a worm wheel (20) is sleeved at one end of the driving shaft penetrating into the transmission seat (7), a worm (8) is horizontally and rotatably connected to the transmission seat (7), and the worm (8) is meshed with the worm wheel (20).

4. The machine tool rest structure convenient for pressing according to claim 1, wherein the buffer assembly comprises a support (12) arranged on the fixed seat (6), a sliding sleeve (13) penetrates through the support (12), a sliding rod (19) coaxially penetrates through the sliding sleeve (13), the lower end of the sliding rod (19) penetrates through the sliding sleeve (13) and is fixedly connected with a floating block (17), the vibration sensor (18) is installed on the floating block (17), a spring (16) is sleeved on the sliding rod (19), and two ends of the spring (16) in the elastic direction elastically abut against the sliding sleeve (13) and the floating block (17) respectively.

5. The tool rest structure of a machine tool convenient for pressing fit according to claim 4, wherein a short pin (14) is arranged at one end of the sliding rod (19) penetrating into the sliding sleeve (13), and a kidney-shaped hole (15) for inserting and combining two ends of the short pin (14) and capable of freely sliding up and down is arranged on the outer wall of the sliding sleeve (13).