阅读说明：本技术 一种曲柄槽轮组合式的低频扭振平台 (Crank groove wheel combined low-frequency torsional vibration platform ) 是由 冯勇 周豪杰 闫国栋 许江涛 周智远 韩向博 于 2021-09-24 设计创作，主要内容包括：本发明涉及一种曲柄槽轮组合式的低频扭振平台,其中,滑槽连杆左右两端端部通过滑槽与一号滚轮和二号滚轮连接,并沿滑块和滑轨作直线往复运动。在曲柄的转动作用下,一号滚轮推动滑槽连杆,滑槽连杆推动二号滚轮,使得二号滚轮带动扭振盘沿周向做往复扭转运动。本发明中,限位滚轮与限位导轨配合使用,可在平台使用过程中有效防止轴向窜动,并采用滑块和滑轨传递扭振,稳定性和精度更高。通过调节电机的转速和一号滚轮在曲柄安装槽中的位置,即可实现对低频扭振频率高低与振幅大小的调节,设计新颖、规划合理,具有结构简易,操作方便,制造及实施成本低,且通用性强的优点,适合推广使用。(The invention relates to a crank-runner combined low-frequency torsional vibration platform, wherein the end parts of the left and right ends of a runner connecting rod are connected with a first roller and a second roller through runners and do linear reciprocating motion along a sliding block and a sliding rail. Under the rotation action of the crank, the first roller pushes the chute connecting rod, and the chute connecting rod pushes the second roller, so that the second roller drives the torsional vibration disc to do reciprocating torsional motion along the circumferential direction. In the invention, the limiting idler wheel is matched with the limiting guide rail for use, so that axial movement can be effectively prevented in the use process of the platform, and the torsional vibration is transmitted by adopting the sliding block and the sliding rail, so that the stability and the precision are higher. The rotation speed of the motor and the position of the roller in the crank mounting groove are adjusted, the adjustment of the low-frequency torsional vibration frequency and the amplitude can be realized, the design is novel, the planning is reasonable, the structure is simple, the operation is convenient, the manufacturing and implementation cost is low, the universality is high, and the device is suitable for popularization and use.)

1. A crank pulley combined low-frequency torsional vibration platform is characterized by comprising a motor (1), a bottom plate (12), a clamping mechanism and a torsional vibration mechanism; the torsional vibration mechanism is arranged on the bottom plate (12) and can rotate relative to the bottom plate (12);

an output shaft of the motor (1) penetrates through the bottom plate (12) to be connected with the torsional vibration mechanism, and the clamping mechanism is arranged at the top of the torsional vibration mechanism; the motor (1) rotates to drive the torsional vibration mechanism to do torsional vibration in a plane, and the torsional vibration mechanism drives the clamping mechanism to do torsional vibration together.

2. A crank-sheave combined low-frequency torsional vibration platform as claimed in claim 1, characterized in that the torsional vibration mechanism comprises a vibration assembly, a reciprocating assembly (13), a guide assembly and a torsional vibration disc (6);

the torsional vibration disc (6) is positioned above the bottom plate (12) and is in bearing connection with the bottom plate (12);

the reciprocating component (13) is arranged at the bottom of the vibrating component and is fixed on the bottom plate (12);

the guide assembly is arranged on the outer side of the torsional vibration disk (6), and the torsional vibration disk (6) rotates in a plane along the guide assembly.

3. A crank and sheave combined low frequency torsional vibration platform as claimed in claim 2, wherein the vibration assembly comprises a crank (2), a first roller (3), a second roller (5) and a sheave link (4);

the center of the crank (2) is fixedly connected with an output shaft of the motor (1), a crank mounting groove (2-2) is formed in the crank (2), and the first roller (3) is fixedly connected in the crank mounting groove (2-2);

the bottom of the reciprocating component (13) is fixed on the bottom plate (12), and the top of the reciprocating component is fixedly connected with the lower surface of the chute connecting rod (4);

a first connecting rod sliding chute (4-1) and a second connecting rod sliding chute (4-2) are respectively arranged at two ends of the sliding chute connecting rod (4), and the first connecting rod sliding chute (4-1) is sleeved on the first roller (3);

the second roller (5) is arranged in the second chute (4-2) of the connecting rod, and the top of the second roller is fixed on the bottom surface of the torsional vibration disk (6).

4. A crank-sheave combined low-frequency torsional vibration platform as claimed in claim 2, characterized in that the guiding assembly comprises a limiting rail (11) and a number of limiting rollers (8); the inside side of limiting guide rail (11) is opened has the spout with torsional vibration dish (6) matched with, and a plurality of limiting idler wheel (8) are fixed in the side of torsional vibration dish (6), and a plurality of limiting idler wheel (8) all are arranged in the spout of limiting guide rail (11).

5. A crank pulley combined low-frequency torsional vibration platform according to claim 2, wherein a torsional vibration disc mounting hole (6-1) is formed in the center of the torsional vibration disc (6), a through hole is formed in the bottom plate (12), the torsional vibration disc mounting hole (6-1) and the through hole are aligned up and down, a bearing (10) is fixed in the through hole of the bottom plate (12), a shaft (9) is fixed on the inner side of the bearing (10), and the top of the shaft (9) is fixed in the torsional vibration disc mounting hole (6-1).

6. A crank-runner combined low-frequency torsional vibration platform as claimed in claim 3, wherein the reciprocating assembly (13) comprises a slide block (13-1) and a slide rail (13-2), the slide rail (13-2) is fixed on the bottom plate (12), the slide block (13-1) is clamped on the slide rail (13-2), and the top of the slide block (13-1) is fixedly connected with the runner connecting rod (4).

7. A crank-runner combined low-frequency torsional vibration platform as claimed in claim 3, wherein the first roller (3) comprises a first roller face (3-1) and a first roller shank (3-2), the first roller face (3-1) and the first roller shank (3-2) are fixedly connected, the first roller shank (3-2) is fixed in the crank mounting groove (2-2), and the first roller face (3-1) is arranged in the first connecting rod runner (4-1).

8. A crank-runner combined low-frequency torsional vibration platform as claimed in claim 3, wherein the second roller (5) comprises a second roller surface (5-1) and a second roller handle (5-2), the second roller surface (5-1) is fixedly connected with the second roller handle (5-2), the second roller handle (5-2) is fixed at the bottom of the torsional vibration plate (6), and the second roller surface (5-1) is arranged in the connecting rod second runner (4-2).

9. A crank pulley combined low-frequency torsional vibration platform according to claim 2, wherein the torsional vibration disk (6) is provided with a plurality of torsional vibration disk mounting grooves (6-2) which are arranged in parallel, and the clamping mechanism is fixedly connected with the torsional vibration disk (6) through the torsional vibration disk mounting grooves (6-2).

10. A crank-sheave combination low-frequency torsional vibration platform as claimed in claim 1, characterised in that the clamping means is a vice work piece (7).

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a crank groove wheel combined low-frequency torsional vibration platform.

Background

In mechanical processing, such as turning, drilling, grinding, spiral milling and the like, axial vibration or torsional vibration with certain frequency and amplitude is applied to a cutter or a processed workpiece, so that the cutting force and the cutting heat are favorably reduced, the conditions of cutter sticking and cutter collapsing are reduced, the processing efficiency can be improved, the service life of the cutter is prolonged, and the technology can be divided into ultrasonic vibration auxiliary processing and non-ultrasonic vibration auxiliary processing according to the frequency of superposed vibration. For some special materials, such as carbon fiber plates, glass fiber plates and the like, in the process of drilling and reaming, because the fiber materials in the special materials are easy to be pulled open and broken in the processing process, the processing effect is poor, even the special materials cannot be processed, the ultrasonic frequency or non-ultrasonic frequency torsional vibration in the axial direction of a drill bit is applied to the drill bit or a workpiece, the cutting force can be changed periodically, the cutting of the fiber materials is promoted, the fiber materials are prevented from being pulled out, the processing effect is improved, but the mechanical torsional vibration tables suitable for drilling and processing the fiber materials in the market are not many. For example, a composite vibration drilling device of patent No. CN201610002983.1 superimposes ultrasonic frequency torsional vibration on a drill bit, and the technical purpose of the composite vibration drilling device is to satisfy non-metal hard and brittle materials and hard-to-cut metal materials, but the requirements on production, manufacture, installation and maintenance of a drilling main shaft are high.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a crank groove wheel combined low-frequency torsional vibration platform.

In order to achieve the purpose, the invention adopts the following technical scheme:

a crank pulley combined low-frequency torsional vibration platform is characterized by comprising a motor, a bottom plate, a clamping mechanism and a torsional vibration mechanism; the torsional vibration mechanism is arranged on the bottom plate and can rotate relative to the bottom plate; an output shaft of the motor penetrates through the bottom plate to be connected with the torsional vibration mechanism, and the clamping mechanism is arranged at the top of the torsional vibration mechanism and used for fixing a workpiece to be processed; the motor rotates to drive the torsional vibration mechanism to do torsional vibration in a plane, and the torsional vibration mechanism drives the clamping mechanism to do torsional vibration together.

In order to optimize the technical scheme, the specific measures adopted further comprise:

further, the torsional vibration mechanism comprises a vibration assembly, a reciprocating assembly, a guide assembly and a torsional vibration disc; the torsional vibration disk is positioned above the bottom plate and is connected with the bottom plate bearing, and the torsional vibration disk can rotate in the plane of the torsional vibration disk relative to the bottom plate; the reciprocating component is arranged at the bottom of the vibrating component and is fixed on the bottom plate; the guide assembly is disposed outside the torsional vibration plate, and the torsional vibration plate rotates in a plane along the guide assembly.

Further, the vibration assembly comprises a crank, a first roller, a second roller and a chute connecting rod; the center of the crank is fixedly connected with an output shaft of the motor, a crank mounting groove is formed in the crank, a first roller is fixedly connected in the crank mounting groove, the position of the first roller in the crank mounting groove can be adjusted, and the frequency and amplitude of low-frequency torsional vibration are controlled; the bottom of the reciprocating assembly is fixed on the bottom plate, the top of the reciprocating assembly is fixedly connected with the lower surface of the chute connecting rod, and the chute connecting rod can reciprocate along the direction of the reciprocating assembly; a first connecting rod sliding groove and a second connecting rod sliding groove are formed in two ends of the sliding groove connecting rod respectively, and the first connecting rod sliding groove is sleeved on the first roller; the second roller is arranged in the second chute of the connecting rod, and the top of the second roller is fixed on the bottom surface of the torsional vibration disc; the first roller can move in the first connecting rod sliding groove, the motor is started to drive the crank and the first roller connected with the crank to rotate, and the first roller moves in the crank mounting groove and the first connecting rod sliding groove while rotating and drives the sliding groove and the connecting rod to reciprocate.

Furthermore, the guide assembly comprises a limiting guide rail and a plurality of limiting rollers; the inside side of limiting guide rail is opened with the spout that twists vibration dish matched with, and a plurality of limiting idler wheels are fixed in the side of twisting vibration dish, and a plurality of limiting idler wheels all are located limiting guide rail's spout.

Furthermore, the center of the torsional vibration disc is provided with a torsional vibration disc mounting hole, the bottom plate is provided with a through hole, the torsional vibration disc mounting hole and the through hole are aligned up and down, a bearing is fixed in the through hole of the bottom plate, a shaft is fixed on the inner side of the bearing, and the top of the shaft is fixed in the torsional vibration disc mounting hole.

Further, reciprocating assembly includes slider and slide rail, and the slide rail is fixed on the bottom plate, and the slider card is on the slide rail, the top and the spout connecting rod fixed connection of slider.

Furthermore, the first roller comprises a first roller surface and a first roller handle, the first roller surface is fixedly connected with the first roller handle, the first roller handle is fixed in the crank mounting groove, and the first roller surface is arranged in the first sliding groove of the connecting rod.

Furthermore, the second roller comprises a second roller surface and a second roller handle, the second roller surface is fixedly connected with the second roller handle, the second roller handle is fixed at the bottom of the torsional vibration disc, and the second roller surface is arranged in the second chute of the connecting rod.

Furthermore, a plurality of torsional vibration disk mounting grooves which are arranged in parallel are formed in the torsional vibration disk, and the clamping mechanism is fixedly connected with the torsional vibration disk through the torsional vibration disk mounting grooves.

Further, the clamping mechanism is a vice workpiece.

The invention has the beneficial effects that:

(1) according to the invention, the first roller pushes the chute connecting rod through the rotation of the crank, and the chute connecting rod pushes the second roller, so that the second roller drives the torsional vibration disc to do reciprocating torsional motion along the circumferential direction, thereby being beneficial to reducing cutting force and cutting heat and reducing the conditions of cutter sticking and cutter collapsing;

(2) the limiting idler wheel is matched with the limiting guide rail, so that axial movement can be effectively prevented in the using process of the platform, and stable operation in the machining process is facilitated; the sliding block and the sliding rail are adopted to transmit torsional vibration, so that the stability and the precision are higher;

(3) the invention can realize the adjustment of the low frequency torsional vibration frequency and the amplitude by adjusting the rotating speed of the motor and the position of the first roller wheel handle in the crank mounting groove, has the advantages of novel design, reasonable planning, simple structure, convenient operation, low manufacturing and implementation cost and strong universality, and is suitable for popularization and application.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the explosive structure of the present invention.

Fig. 3 is a schematic view of the assembled structure of the present invention.

Fig. 4 is a schematic structural view of the torsional vibration mechanism of the present invention.

Reference numerals: a motor 1, a motor mounting hole 1-1, an output shaft 1-2, a crank mounting hole 2-1, a crank mounting groove 2-2, a first roller 3, a first roller face 3-1, a first roller shank 3-2, a chute connecting rod 4, a connecting rod first chute 4-1, a connecting rod second chute 4-2, a second roller 5, a second roller face 5-1, a second roller shank 5-2, a torsional vibration disk 6, a torsional vibration disk mounting hole 6-1, a torsional vibration disk mounting groove 6-2, a vice mounting groove 7-1, a limiting roller 8, a limiting roller face 8-1, a limiting roller shank 8-2, a shaft 9, a bearing 10, a limiting guide rail 11, a limiting guide rail upper 11-1, a limiting guide rail lower 11-2 bottom plate 12 and a reciprocating assembly 13, a slide block 13-1 and a slide rail 13-2.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the present invention provides a crank pulley combined low frequency torsional vibration platform, which comprises a motor 1, a bottom plate 12, a vice workpiece 7 and a torsional vibration mechanism.

The motor 1 is fixed on the bottom plate 12 through four motor mounting holes 1-1, a connecting hole is formed in the bottom plate 12, and an output shaft 1-2 of the motor 1 penetrates through the connecting hole in the bottom plate 12.

As shown in fig. 4, the torsional vibration mechanism includes a vibration assembly, a reciprocating assembly 13, a limit rail 11, and a torsional vibration plate 6.

The torsional vibration disk 6 is positioned above the bottom plate 12; a torsional vibration disc mounting hole 6-1 is formed in the center of the torsional vibration disc 6, a through hole is formed in the bottom plate 12, the torsional vibration disc mounting hole 6-1 and the through hole are aligned up and down, a bearing 10 is fixed in the through hole of the bottom plate 12, a shaft 9 is fixed on the inner side of the bearing 10, and the top of the shaft 9 is fixed in the torsional vibration disc mounting hole 6-1; the base plate 12 remains stationary and the torsion disc 6 is rotatable relative to the base plate 12.

The torsional vibration disk 6 is provided with two parallel torsional vibration disk mounting grooves 6-2, the vice workpiece 7 is provided with a vice mounting groove 7-1, the vice mounting groove 7-1 and the torsional vibration disk mounting groove 6-2 are aligned and fixed with each other, the vice workpiece 7 is fixedly connected with the torsional vibration disk 6, and the vice workpiece 7 can clamp a part to be processed.

The limiting guide rail 11 consists of an upper limiting guide rail 11-1 and a lower limiting guide rail 11-2, the upper limiting guide rail 11-1 is fixedly connected with the lower limiting guide rail 11-2, the lower limiting guide rail 11-2 is fixed on the bottom plate 12, the upper limiting guide rail 11-1 is fixed on the lower limiting guide rail 11-2, the inner side surface of the limiting guide rail 11 forms a sliding groove matched with the torsional vibration disc 6, and the torsional vibration disc 6 is positioned on the inner side of the limiting guide rail 11; the side surface of the torsional vibration disk 6 is also provided with a plurality of limiting idler wheels 8; the limiting idler wheel 8 comprises a limiting idler wheel handle 8-2 and a limiting idler wheel face 8-1, the limiting idler wheel handle 8-2 is fixed on the side face of the torsional vibration disk 6, the limiting idler wheel face 8-1 is clamped in a sliding groove of the limiting guide rail 11, and the torsional vibration disk 6 can rotate in the limiting guide rail 11 through the limiting idler wheel 8 on the side face.

The vibration component comprises a crank 2, a first roller 3, a second roller 5 and a chute connecting rod 4.

A crank mounting hole 2-1 is formed in the center of the crank 2, a crank mounting groove 2-2 is formed in the crank 2, an output shaft 1-2 of the motor 1 is fixed in the crank mounting hole 2-1 and fixedly connected with the crank 2, the motor 1 is started, and the output shaft 1-2 drives the crank 2 to rotate; two ends of the chute connecting rod 4 are respectively provided with a first connecting rod chute 4-1 and a second connecting rod chute 4-2; the first roller 3 comprises a first roller face 3-1 and a first roller handle 3-2, the first roller face 3-1 is fixedly connected with the first roller handle 3-2, the first roller handle 3-2 is fixed in the crank mounting groove 2-2, the first roller face 3-1 is arranged in the first connecting rod sliding groove 4-1, and the first roller 3 can adjust the position in the crank mounting groove 2-2 to control the frequency and amplitude of low-frequency torsional vibration.

The second roller 5 comprises a second roller face 5-1 and a second roller handle 5-2, the second roller face 5-1 is fixedly connected with the second roller handle 5-2, the second roller handle 5-2 is fixed at the bottom of the torsional vibration disc 6, and the second roller face 5-1 is arranged in the second chute 4-2 of the connecting rod. The second roller wheel handle 5-2 is fixed on the bottom surface of the torsional vibration disk 6.

The reciprocating assembly 13 comprises a sliding block 13-1 and a sliding rail 13-2, the sliding rail 13-2 is fixed on the bottom plate 12, the sliding block 13-1 is clamped on the sliding rail 13-2, the top of the sliding block 13-1 is fixedly connected with the sliding chute connecting rod 4, and the sliding chute connecting rod 4 can reciprocate back and forth along the length direction of the sliding rail 13-2 through the sliding block 13-1. The motor 1 is started to drive the crank 2 and the first roller 3 connected with the crank to rotate, the first roller 3 drives the first chute 4-1 of the connecting rod to move while rotating, and simultaneously drives the chute connecting rod 4 to move along the length direction of the sliding rail 13-2. The sliding chute connecting rod 4 pushes the second roller 5, so that the second roller 5 drives the torsional vibration disc 6 to do reciprocating torsional motion along the circumferential direction, the cutting force and the cutting heat are favorably reduced, and the conditions of cutter sticking and cutter collapsing are reduced.

Preferably, the bottom of the bottom plate 12 is provided with a plurality of through holes, and the platform described in this embodiment can be mounted on a force measuring platform or a processing platform.

Preferably, the vise work 7 in the present embodiment may be any other clamping mechanism capable of clamping a work.

During the use, firstly adjust the position of a gyro wheel 3 in crank mounting groove 2-2 and come the torsional vibration amplitude of control platform, install vice work piece 7 on the torsional vibration dish 6, will wait to process the work piece and place in vice work piece 7, start motor 1 and drive crank 2 rotatory, under the rotation effect of crank 2, a gyro wheel 3 promotes spout connecting rod 4, and spout connecting rod 4 promotes No. two gyro wheels 5 for No. two gyro wheels 5 drive torsional vibration dish 6 and do reciprocal torsional motion along the circumference, and the work piece is along with torsional vibration dish 6 and do reciprocal torsional motion together.

It should be noted that the terms "upper", "lower", "left", "right", "front", "back", etc. used in the present invention are for clarity of description only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not limited by the technical contents of the essential changes.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.