CN214661194U - High-frequency high-speed linear reciprocating mechanism - Google Patents
High-frequency high-speed linear reciprocating mechanism Download PDFInfo
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- CN214661194U CN214661194U CN202121006275.8U CN202121006275U CN214661194U CN 214661194 U CN214661194 U CN 214661194U CN 202121006275 U CN202121006275 U CN 202121006275U CN 214661194 U CN214661194 U CN 214661194U
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Abstract
The utility model provides a high-frequency high-speed linear reciprocating motion mechanism, which comprises a frame, a driving component, a belt wheel component, a guiding component and a telescopic rod component; the belt wheel assembly is fixedly connected with the telescopic rod assembly, the driving assembly is used for driving the belt wheel assembly to rotate so as to drive the telescopic rod assembly to move, and the guiding assembly is used for guiding the movement directions of the driving assembly, the belt wheel assembly and the telescopic rod assembly; the belt wheel assembly comprises two small belt wheels and two large belt wheels, wherein one small belt wheel and one large belt wheel are coaxially arranged, and the radiuses of the two large belt wheels and the radiuses of the two small belt wheels are in a multiple relation; the driving assembly comprises a first driving cylinder and a second driving cylinder which are fixedly connected back to back, the telescopic rod assembly comprises a telescopic rod, and a pushing head is arranged at one end of the telescopic rod. The utility model discloses can realize the high frequency straight reciprocating motion of three back point in relatively narrow and small space to can realize coordinated control, simple structure economy is reliable with automation equipment.
Description
Technical Field
The utility model relates to a motion that twice high-speed released in succession in section of thick bamboo yarn diolame technological process specifically indicates a high-speed linear reciprocating motion mechanism of high frequency.
Background
At present, the known linear motion mode has no direct drive mode such as non-air cylinder, hydraulic cylinder and the like, and the motor and the engine are converted into the linear motion mode through a transmission device, and the motion conversion is realized through mechanical structures such as a crank slide block, a cam slide block and the like, and the linear motor and the like. Any technical index of high frequency, reciprocation, high speed, large stroke, automatic control and compact space is not difficult to achieve, but high-frequency high-speed linear reciprocating motion is achieved in the relatively compact space, and certain technical difficulty is achieved when the device can be applied to closed-loop automatic control. For example, a crank-slider mechanism represented by a shaper in a common linear reciprocating motion can realize continuous reciprocating motion, and is difficult to obtain enough corresponding action capacity; very high linear speed can be obtained in linear motion realized by motor-transmission, and reciprocating motion with high frequency is difficult to realize under the condition of simple control; the high-frequency high-speed control can be realized by adopting a double-motor strategy, but the cost is multiplied, and the economical efficiency is not dominant. For the scheme of the high-speed cylinder, the high-speed cylinder cannot reach a high integral average speed at the stroke limit due to the existence of the air buffer effect; the system life will be significantly reduced if the air cushion effect is eliminated. Meanwhile, as the system has three control points in the action, the high-speed cylinder is difficult to realize good action switching when processing the middle position.
SUMMERY OF THE UTILITY MODEL
To the problem of above-mentioned current straight reciprocating motion mechanism corresponding frequency and speed not enough, the utility model provides a high-speed straight reciprocating motion mechanism of high frequency, this mechanism can realize high-speed motion, high-frequency direction of motion switching in fairly big stroke, and reasonable in design has overcome prior art's not enough, has good effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-frequency high-speed linear reciprocating mechanism comprises a frame, a driving assembly, a belt wheel assembly, a guide assembly and a telescopic rod assembly; the belt wheel assembly is fixedly connected with the telescopic rod assembly, the driving assembly is used for driving the belt wheel assembly to rotate so as to drive the telescopic rod assembly to move, and the guiding assembly is used for guiding the movement directions of the driving assembly, the belt wheel assembly and the telescopic rod assembly;
preferably, the frame comprises two side plates, and the two side plates are fixed by a plurality of support rods to form an integral frame.
Preferably, the belt wheel assembly comprises two small belt wheels and two large belt wheels, wherein one small belt wheel and one large belt wheel are coaxially arranged, the belt pulley assembly further comprises a belt seat bearing, a belt slider shaft seat and a belt wheel shaft, one small belt wheel is fixed on the belt wheel shaft, the belt wheel shaft is fixed on the frame through the two belt seat bearings, the other small belt wheel is fixed on the belt wheel shaft, and the belt wheel shaft is fixed on the frame through the two belt slider bearings and is tensioned; two little band pulleys are connected with first ring-opening synchronous belt drive, two big band pulleys are connected with second ring-opening synchronous belt drive, distance between two big band pulleys is greater than the distance between two little band pulleys, the radius of big band pulley is the multiple relation with the radius of little band pulley, it is n times that big band pulley radius length is little band pulley radius length to assume, then the actual movement track length of second ring-opening synchronous belt also is n times of the movement track length of first ring-opening synchronous belt, with this realization speed-doubling transmission, can realize the change to telescopic link speed through the radius ratio or the tooth ratio that change little band pulley and big band pulley.
Preferably, the driving assembly comprises a first driving cylinder and a second driving cylinder which are fixedly connected back to back, one end of the first driving cylinder is fixed with the frame, the other end of the first driving cylinder is connected with the second driving cylinder, a floating joint is arranged at the telescopic end of the second driving cylinder and is connected with the first synchronous belt connecting frame through the floating joint, and therefore the first open-loop synchronous belt is driven to reciprocate; two driving cylinders which are installed in series are used as driving devices to realize position control of three actions, and the running time required for completing the whole action stroke can be further shortened; the two driving cylinders can act simultaneously to obtain a faster speed, and can also act independently to obtain relatively accurate position control. The first driving cylinder and the second driving cylinder are independently controlled through two electromagnetic valves respectively, accurate control of three positions in the whole action process is achieved, magnetic induction switches are arranged on the first driving cylinder and the second driving cylinder, the cylinders give signals after reaching the specified positions, in-place detection is achieved, and closed-loop control is achieved.
Preferably, telescopic link assembly includes the telescopic link, and telescopic link one end is passed through second hold-in range link and second ring-opening hold-in range fixed connection, and the other end is equipped with the pusher that is used for realizing the mechanism function.
Preferably, the direction subassembly includes first linear slide rail and second linear slide rail, and first and second linear slide rail are fixed on the inner wall of curb plate around the frame, and first hold-in range link passes through slider and first linear slide rail sliding connection, and second hold-in range link passes through slider and second linear slide rail sliding connection, provides the direction for the cylinder drive in the drive assembly, guarantees simultaneously that first ring-opening hold-in range and second ring-opening hold-in range are the off tracking not in whole motion stroke scope.
Preferably, the guide assembly further comprises a linear bearing, the linear bearing is fixed with the frame through a linear bearing mounting frame, and the telescopic rod penetrates through the linear bearing to ensure that the telescopic rod always follows a required direction in the reciprocating motion.
Preferably, the mechanism further comprises a cylinder anti-rotation assembly, the cylinder anti-rotation assembly is arranged above the first driving cylinder and comprises a shaft fixed on the frame, a bearing rotationally connected with the shaft and a nylon wheel sleeved outside the bearing, a certain gap is reserved between the nylon wheel and the outer wall of the first driving cylinder, the anti-rotation is achieved, the nylon wheel and the outer wall of the first driving cylinder are not always in a friction state, the working condition is improved, and the service life is prolonged.
Preferably, the mechanism further comprises a tail buffering assembly, the tail buffering assembly comprises an oil buffer and a buffering support, the buffering support is fixed on the frame, the oil buffer is fixed on the buffering support and matched with the second synchronous belt connecting frame for use, the oil buffer realizes a buffering effect on one direction of reciprocating motion through collision with the second synchronous belt connecting frame, the oil buffer can effectively offset the inertia effect of a moving part, and the dynamic characteristic of the whole system is remarkably improved.
The working principle of the mechanism is as follows: the flexible end of first cylinder and second cylinder among the drive assembly moves simultaneously or alone, drives first open-loop synchronous belt and follows linear motion, and first open-loop synchronous belt drive band pulley shaft rotates, drives big band pulley then and rotates with the same angular velocity, and second open-loop synchronous belt links to each other with the telescopic link to drive the telescopic link and accomplish linear motion.
The utility model discloses the beneficial effect who brings:
the utility model discloses can realize the high frequency straight reciprocating motion of three back point in relatively narrow and small space to can realize coordinated control, simple structure economy is reliable with automation equipment.
Drawings
FIG. 1 is an overall structure diagram of the present invention;
fig. 2 is a partial schematic view of a frame according to the present invention;
fig. 3 is a side view of the present invention;
fig. 4 is a cross-sectional view taken along line a-a of fig. 3 in accordance with the present invention;
fig. 5 is a cross-sectional view of fig. 3, taken along line C-C, in accordance with the present invention;
wherein, 1-frame; 101-front side plate; 102-a rear side panel; 103-a support bar; 2-a drive assembly; 201-a first drive cylinder; 202-a second drive cylinder; 203-a floating joint; 204-a first synchronous belt link; 205-cylinder fixing base; 3-a pulley assembly; 301-small pulley; 302-large pulley; 303-pulley shaft; 304-a first open-loop synchronous belt; 305-a second open-loop synchronous belt; 4-a guide assembly; 401-a first linear slide; 402-a second linear slide; 403-a slider; 404-a second synchronous belt link carriage; 405-a linear bearing; 406-linear bearing mount; 5-a telescopic rod assembly; 501-a telescopic rod; 502-pushing head; 6-cylinder rotation-preventing component; 7-a tail buffer assembly; 701-oil pressure buffer; 702-a buffer support;
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-5, a high-frequency high-speed linear reciprocating mechanism comprises a frame 1, a driving assembly 2, a belt wheel assembly 3, a guide assembly 4 and a telescopic rod assembly 5; the belt wheel assembly 3 is fixedly connected with the telescopic rod assembly 5, the driving assembly 2 is used for driving the belt wheel assembly 3 to rotate so as to drive the telescopic rod assembly 5 to move, and the guiding assembly 4 is used for guiding the movement directions of the driving assembly 2, the belt wheel assembly 3 and the telescopic rod assembly 4;
specifically, the frame 1 includes a front side plate 101 and a rear side plate 102, which are fixed to each other by a plurality of support rods 103 to form an integral frame.
Specifically, the pulley assembly 3 comprises two small pulleys 301 and two large pulleys 302, wherein one small pulley 301 and one large pulley 302 are coaxially mounted, and further comprises a pulley seat bearing, a pulley block shaft seat and a pulley shaft 303, wherein one small pulley 301 is fixed on the pulley shaft 303, the pulley shaft 303 is fixed on the frame 1 through the two pulley seat bearings, the other small pulley 301 is fixed on the pulley shaft 303, and the pulley shaft 303 is fixed on the frame 1 through the two pulley block bearings and is tensioned; two small belt wheels 301 are in transmission connection with a first open-loop synchronous belt 304, two large belt wheels 302 are in transmission connection with a second open-loop synchronous belt 305, the distance between the two large belt wheels 302 is larger than the distance between the two small belt wheels 301, the radius of the large belt wheels 302 is in a multiple relation with the radius of the small belt wheels 301, the length of the radius of the large belt wheels 302 is assumed to be n times of the length of the radius of the small belt wheels 301, the length of the actual motion track of the second open-loop synchronous belt 305 is also n times of the length of the motion track of the first open-loop synchronous belt 304, speed doubling transmission is achieved, and the speed of the telescopic rod can be changed by changing the radius ratio or the gear ratio of the small belt wheels 301 and the large belt wheels 302.
Specifically, the driving assembly 2 comprises a first driving cylinder 201 and a second driving cylinder 202 which are fixedly connected back to back, one end of the first driving cylinder 201 is connected with a cylinder fixing seat 205, the cylinder fixing seat 205 is fixed on the frame 1, the other end of the first driving cylinder is connected with the second driving cylinder 202, a floating joint 203 is arranged at the telescopic end of the second driving cylinder 202, and the second driving cylinder is connected with a first synchronous belt connecting frame 204 through the floating joint 203, so that the first open-loop synchronous belt 304 is driven to reciprocate; two driving cylinders which are installed in series are used as driving devices to realize position control of three actions, and the running time required for completing the whole action stroke can be further shortened; the two driving cylinders can act simultaneously to obtain a faster speed, and can also act independently to obtain relatively accurate position control. The first driving cylinder 201 and the second driving cylinder 202 are independently controlled through two electromagnetic valves respectively, accurate control of three positions in the whole action process is achieved, magnetic induction switches are arranged on the first driving cylinder 201 and the second driving cylinder 202, signals are given out after the cylinders reach specified positions, in-place detection is achieved, and closed-loop control is achieved.
Specifically, telescopic link assembly 5 includes telescopic link 501, and telescopic link 501 one end is passed through second hold-in range link 404 and second open-loop hold-in range 305 fixed connection, and the other end is equipped with the pusher 502 that is used for realizing the mechanism function.
Specifically, the guide assembly 4 includes first linear slide rail 401 and second linear slide rail 402, first linear slide rail 401 and second linear slide rail 402 are fixed on the inner wall of curb plate around the frame, first hold-in range link 204 passes through slider 403 and first linear slide rail 401 sliding connection, second hold-in range link 404 passes through slider 403 and second linear slide rail 402 sliding connection, for cylinder drive among the drive assembly provides the direction, guarantee first open-loop hold-in range 304 and second open-loop hold-in range 305 not off tracking in whole motion stroke scope simultaneously.
Specifically, the guiding assembly 4 further comprises a linear bearing 405, the linear bearing 405 is fixed with the frame 1 through a linear bearing mounting frame 406, and the telescopic rod 501 penetrates through the linear bearing 405 to ensure that the telescopic rod is always along a required direction in the reciprocating motion.
Specifically, this mechanism still includes the cylinder and prevents changeing subassembly 6, and the cylinder prevents changeing subassembly 6 and establishes in first drive actuating cylinder 201 top, including fixing the axle on the frame, with axle swivelling joint's bearing and the nylon wheel of cover establishing outside the bearing, leaves certain clearance between nylon wheel and the first actuating cylinder 201 outer wall that drives, both can accomplish to prevent changeing, is unlikely to be in the friction state all the time again.
Specifically, the mechanism further comprises a tail buffering assembly 7, the tail buffering assembly comprises an oil buffer 701 and a buffering support 702, the buffering support 702 is fixed on the frame 1, the oil buffer 701 is fixed on the buffering support 702 and is matched with the second synchronous belt connecting frame 404 for use, and the buffering effect on one direction of reciprocating motion is realized through collision with the second synchronous belt connecting frame 404.
In this example, the first driving cylinder 201 and the second driving cylinder 202 act simultaneously to drive the first open-loop synchronous belt 304 to move linearly, the first open-loop synchronous belt 304 drives the pulley shaft 303 to rotate, and then drives the large pulley 302 to rotate at the same angular velocity, and the second open-loop synchronous belt 305 is connected with the telescopic rod 501 to drive the telescopic rod 501 to complete the linear motion; the first driving air cylinder 201 and the second driving air cylinder 202 respectively reach the respective stroke limits to trigger the magnetic induction switches and then stop, the driving air cylinder with the shorter triggering stroke retracts independently, the driving air cylinder is triggered again to extend independently after reaching the stroke limit, and after reaching the forming limit again, the two driving air cylinders retract simultaneously to complete the whole action cycle.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (7)
1. A high-frequency high-speed linear reciprocating mechanism is characterized by comprising a frame, a driving assembly, a belt wheel assembly, a guide assembly and a telescopic rod assembly; the belt wheel assembly is fixedly connected with the telescopic rod assembly, the driving assembly is used for driving the belt wheel assembly to rotate so as to drive the telescopic rod assembly to move, and the guiding assembly is used for guiding the movement directions of the driving assembly, the belt wheel assembly and the telescopic rod assembly;
the belt wheel assembly comprises two small belt wheels and two large belt wheels, wherein one small belt wheel and one large belt wheel are coaxially arranged, the two small belt wheels are in transmission connection with a first open-loop synchronous belt, the two large belt wheels are in transmission connection with a second open-loop synchronous belt, and the radius lengths of the two large belt wheels and the radius lengths of the two small belt wheels are in a multiple relation, so that the double-speed rotation is realized;
the driving assembly comprises a first driving cylinder and a second driving cylinder which are fixedly connected back to back, and the telescopic end of the second driving cylinder is fixedly connected with the first open-loop synchronous belt through a first synchronous belt connecting frame;
the telescopic link subassembly includes the telescopic link, telescopic link one end is passed through second hold-in range link and second ring-opening hold-in range fixed connection, and the other end is equipped with the pusher.
2. The high-frequency high-speed linear reciprocating mechanism according to claim 1, wherein the guide assembly comprises a first linear slide rail and a second linear slide rail, the first and second linear slide rails are fixed on the inner walls of the front and rear side plates of the frame, the first synchronous belt connecting frame is slidably connected with the first linear slide rail through a sliding block, and the second synchronous belt connecting frame is slidably connected with the second linear slide rail through a sliding block.
3. A high frequency high speed linear reciprocating motion mechanism according to claim 2, wherein the guide assembly further comprises a linear bearing fixed to the frame by a linear bearing mounting bracket, and the extension rod passes through the linear bearing.
4. The high-frequency high-speed linear reciprocating mechanism according to claim 1, further comprising a cylinder rotation preventing assembly, wherein the cylinder rotation preventing assembly is arranged above the first driving cylinder and comprises a shaft fixed on the frame, a bearing rotatably connected with the shaft, and a nylon wheel sleeved outside the bearing, and a certain gap is left between the nylon wheel and the outer wall of the first driving cylinder.
5. A high-frequency high-speed linear reciprocating mechanism according to claim 1, further comprising a tail buffer assembly, wherein the tail buffer assembly comprises an oil buffer fixed on the frame and used in cooperation with the second synchronous belt connecting frame.
6. The high-frequency high-speed linear reciprocating mechanism according to claim 1, wherein the first driving cylinder and the second driving cylinder are independently controlled by two electromagnetic valves, magnetic induction switches are arranged on the first driving cylinder and the second driving cylinder, and when the cylinders reach a designated position, signals are given out to realize position detection.
7. The high-frequency high-speed linear reciprocating mechanism of claim 1, wherein the telescopic end of the second driving cylinder is provided with a floating joint, and is fixedly connected with the first synchronous belt connecting frame through the floating joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121006275.8U CN214661194U (en) | 2021-05-12 | 2021-05-12 | High-frequency high-speed linear reciprocating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121006275.8U CN214661194U (en) | 2021-05-12 | 2021-05-12 | High-frequency high-speed linear reciprocating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214661194U true CN214661194U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121006275.8U Active CN214661194U (en) | 2021-05-12 | 2021-05-12 | High-frequency high-speed linear reciprocating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214661194U (en) |
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2021
- 2021-05-12 CN CN202121006275.8U patent/CN214661194U/en active Active
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