CN112719955A

CN112719955A - Workpiece clamping device of sawing machine and clamping method thereof

Info

Publication number: CN112719955A
Application number: CN202011544388.3A
Authority: CN
Inventors: 柳炜玮
Original assignee: Wuhan Weilong Mechanical Mould Co ltd
Current assignee: Wuhan Weilong Mechanical Mould Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-04-30

Abstract

The invention discloses a sawing machine workpiece clamping device which comprises a mounting frame assembly, a moving shaft assembly, a pressing assembly, a driving assembly and a sawing machine workpiece assembly, wherein the mounting frame assembly comprises a vertically arranged mounting vertical frame, a base plate fixed on the bottom surface of the mounting vertical frame, and a mounting bracket arranged on the top surface of the base plate. The structure is convenient to be matched with the pedal structure, automatic power separation and automatic ejection are completed under the action of the two electromagnets when power is off, when the pedal is used for a long time, the counterweight structure is convenient to use for assisting pressing, and the practicability is improved.

Description

Workpiece clamping device of sawing machine and clamping method thereof

Technical Field

The invention relates to the technical field of sawing machine workpiece clamping, in particular to a sawing machine workpiece clamping device and a clamping method thereof.

Background

The main parts of the sawing machine are a base, a machine body, a column, a saw beam, a transmission mechanism, a guide device and a workpiece clamping and tensioning device; the feeding frame, the hydraulic transmission system, the electrical control system and the lubricating and cooling system are formed, when a workpiece is clamped, the traditional clamping device is used, the structure is single, when power is cut off, manual operation pressing and electric pressing are automatically switched, use has certain limitation, and the structure of manual operation is short of an auxiliary structure and is not labor-saving enough when the power is cut off.

Disclosure of Invention

Therefore, the invention aims to provide a sawing machine workpiece clamping device and a clamping method thereof, wherein the device is matched with a pedal structure through a moving shaft structure and a pressing structure which are arranged, the pressing and releasing are carried out under the action of a driving structure, the driving force is in the vertical direction, the structure is convenient to be matched with the pedal structure, the automatic power separation and the automatic ejection are completed under the action of two electromagnets when the power failure occurs, and when the pedal is used for a long time, a counterweight structure is convenient to be used for assisting in pressing down, so that the practicability is improved.

To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:

a sawing machine workpiece clamping device comprising:

the mounting frame assembly comprises a vertically arranged mounting vertical frame, a base plate fixed on the bottom surface of the mounting vertical frame and a mounting bracket arranged on the top surface of the base plate;

a moving shaft assembly including a first moving shaft connected with the mounting vertical frame, a second moving shaft connected with the first moving shaft, a first connecting shaft connecting the first moving shaft with the mounting bracket, and a second connecting shaft connecting the first moving shaft with the second moving shaft;

the pressing assembly comprises a pressing rotating plate connected with the second moving shaft and a pressing head fixed at the front end of the pressing rotating plate;

the driving assembly comprises a lower concave pressing plate connected with the first moving shaft, an air cylinder arranged above the lower concave pressing plate, a groove formed in the top surface of the lower concave pressing plate, a first electromagnet fixed at the tail end of the air cylinder and a connecting spring for connecting the top surface of the mounting vertical frame with the lower concave pressing plate;

the sawing machine workpiece assembly comprises a sawing machine workpiece body arranged on the top surface of the mounting vertical frame and a mounting groove formed in the surface of the sawing machine workpiece body.

The preferable scheme of the workpiece clamping device for the sawing machine is that two moving shaft assemblies are arranged, and the two moving shaft assemblies are symmetrically arranged at the central line position of the base plate.

The preferable scheme of the sawing machine workpiece clamping device is that the sawing machine workpiece clamping device further comprises a pedal assembly, and the pedal assembly comprises a concave opening formed in the side face of the lower concave pressing plate, a pedal rod clamped in the concave opening and a locking knob for locking the pedal rod.

The preferable scheme of the workpiece clamping device for the sawing machine is that the workpiece clamping device further comprises a counterweight assembly, wherein the counterweight assembly comprises a through hole formed in the side surface of the lower concave pressing plate, a placing plate penetrating through the through hole, a front plate fixed on the front end surface of the placing plate and a counterweight block placed on the surface of the placing plate.

As a preferable scheme of the workpiece clamping device for the sawing machine, the workpiece clamping device for the sawing machine further comprises a limiting assembly, wherein the limiting assembly comprises a metal rod fixed on the other end side of the placing plate, a limiting block fixed on the side surface of the metal rod and a limiting groove arranged on the other side of the lower concave pressing plate.

The ejection assembly comprises an L-shaped fixed block fixed on one side of the lower concave pressing plate, a tension spring for connecting the front plate with the L-shaped fixed block, an interface end arranged on the other side of the lower concave pressing plate, and a second electromagnet fixed on the side wall of the front plate and clamped with the interface end.

A sawing machine workpiece clamping method comprises the following specific steps:

s1: firstly, a first moving shaft and a second moving shaft are respectively connected and assembled through a first connecting shaft and a second connecting shaft, the first moving shaft is connected with a lower concave pressing plate, and a pressing rotating plate for clamping is connected with the second moving shaft, so that the workpiece is conveniently driven to be pressed and clamped;

and S2, opening a switch cylinder to start working for up-and-down movement, driving a first movement shaft to expand outwards when the cylinder moves upwards, and pushing upwards under the action of a second movement shaft to push a pressing rotating plate to rotate inwards so as to drive a pressing head to press the workpiece body of the sawing machine to be pressed, and driving the pressing rotating plate to rotate outwards during the contraction process when the cylinder moves downwards, wherein the first movement shaft and the second movement shaft contract inwards at the same time, so that the pressing head is separated from the workpiece body of the sawing machine:

s3: if the power is not cut off in the using process, executing the step S to continue the clamping production work, and if the power is cut off, selecting to execute the step S;

s4: the first electromagnet and the second electromagnet are powered off at the moment of power failure, when the first electromagnet loses magnetic force, the first electromagnet is separated from the groove, once the first electromagnet is powered off, the air cylinder is directly separated from the pressing concave plate, the connecting spring has tension to always press a workpiece, at the moment, a user rotates the locking knob to stretch out the pedal rod, the user can conveniently release the pressed workpiece through sole pressing, and when the second electromagnet loses magnetic force, the front plate is popped out under the action of the tensioning spring, after the popping out, the limiting block is mutually clamped with the limiting groove, when a pressing head needs to keep an upward posture for a long time, the user can place the workpiece, and the counterweight block is placed in the placing plate, so that labor is saved;

s5: and continuing to clamp the production until the required yield is finished.

Compared with the prior art, the invention has the beneficial effects that: through the motion axle construction and the compact structure that set up mutually support and compress tightly and release under the effect of drive structure to this kind of drive dynamics is in vertical direction, and such convenient mutually support with pedal structure of structure, accomplishes automatic power separation and auto-eject under the effect of two electro-magnets when having a power failure, when pedal long-time use is tired, facilitates the use counter weight structure and assists and pushes down, improves the practicality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:

FIG. 1 is a block diagram of a method for clamping a workpiece in a sawing machine according to the present invention;

FIG. 2 is an overall structure diagram of a workpiece clamping device of a sawing machine according to the present invention;

fig. 3 is a structural diagram of a counterweight component in the sawing machine workpiece clamping device in fig. 2.

Fig. 4 is a structural view of the pedal assembly in fig. 2 of the workpiece clamping device of the sawing machine according to the invention.

In the figure: 100. a mounting bracket assembly; 110. installing a vertical frame; 120. a base plate; 130. mounting a bracket; 200. a moving shaft assembly; 210. a first axis of motion; 220. a second axis of motion; 230. a first connecting shaft; 240. a second connecting shaft; 300. a compression assembly; 310. compressing the rotating plate; 320. a compression head; 400. a drive assembly; 410. pressing the concave template downwards; 420. a cylinder; 430. a groove; 440. a first electromagnet; 450. a connecting spring; 500. a footrest assembly; 510. a concave-shaped opening; 520. a foot lever; 530. locking the knob; 600. a counterweight assembly; 610. a through hole; 620. placing the plate; 630. a front panel; 640. a balancing weight; 700. a sawing machine workpiece assembly; 710. a sawing machine workpiece body; 720. mounting grooves; 800. a limiting component; 810. a metal rod; 820. a limiting block; 830. a limiting groove; 900. an ejection assembly; 910. tensioning the spring; 920. an interface end; 930. a second electromagnet; 940. an L-shaped fixed block.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The invention provides a sawing machine workpiece clamping device and a clamping method thereof.A moving shaft structure and a pressing structure are matched with each other, and are pressed and released under the action of a driving structure, and the driving force is in the vertical direction, so that the structure is convenient to be matched with a pedal structure, automatic power separation and automatic ejection are completed under the action of two electromagnets when power is off, and when the pedal is used for a long time, a counterweight structure is convenient to use for assisting pressing, and the practicability is improved.

Referring to fig. 1 to 4, which are schematic overall structural views illustrating an embodiment of a workpiece clamping device of a sawing machine and a clamping method thereof according to the present invention, a main body of the workpiece clamping device of the sawing machine and the clamping method thereof according to the present embodiment includes: the mounting bracket assembly 100, the motion shaft assembly 200, the compacting assembly 300, the drive assembly 400, the footrest assembly 500, the counterweight assembly 600, the sawing machine workpiece assembly 700, the stop assembly 800, and the ejection assembly 900.

The mounting bracket assembly 100 is used for basic construction and installation of the whole clamping structure, specifically, the mounting bracket assembly 100 comprises a vertically arranged mounting vertical frame 110, a base plate 120 fixed on the bottom surface of the mounting vertical frame 110 and a mounting bracket 130 arranged on the top surface of the base plate 120, when in specific use, a motion shaft for assisting driving and pressing is arranged on the side wall of the whole mounting bracket 130, and the base plate 120 is in contact with the ground and maintains stable.

The moving shaft assembly 200 is used for being matched with each other to complete extension and contraction, and is conveniently and directly connected with the pressing assembly 300 to complete pressing, specifically, the moving shaft assembly 200 comprises a first moving shaft 210 connected with the mounting vertical frame 110, a second moving shaft 220 connected with the first moving shaft 210, a first connecting shaft 230 connecting the first moving shaft 210 with the mounting bracket 130, and a second connecting shaft 240 connecting the first moving shaft 210 with the second moving shaft 220, when the moving shaft assembly is used specifically, the first moving shaft 210, the second moving shaft 220 and the pressing rotating plate 310 are connected with each other, so that when the two moving shafts move downwards and are pulled, the pressing rotating plate 310 is pulled to rotate, and the pressing head 320 is separated from a workpiece, and conversely, when the two moving shafts move upwards, the pressing head 320 is driven to jack up to press the workpiece.

The pressing assembly 300 is used for being clamped and fixed with a workpiece to be pressed, specifically, the pressing assembly 300 comprises a pressing rotating plate 310 connected with the second moving shaft 220 and a pressing head 320 fixed at the front end of the pressing rotating plate 310, and when the pressing assembly is used specifically, the pressing rotating plate 310 rotates under the action of the outside, so that the pressing head 320 is driven to be pressed and separated.

The driving assembly 400 is used for driving the motion shaft to move up and down, and specifically, the driving assembly 400 comprises a lower concave pressing plate 410 connected with the first motion shaft 210, an air cylinder 420 arranged above the lower concave pressing plate 410, a groove 430 arranged on the top surface of the lower concave pressing plate 410, a first electromagnet 440 fixed at the tail end of the air cylinder 420 and a connecting spring 450 for connecting the top surface of the mounting vertical frame 110 with the lower concave pressing plate 410, when the driving assembly is used specifically, the switch air cylinder 420 is opened to work up and down, when the air cylinder 420 moves up, the first motion shaft 210 is driven to expand outwards and is driven to push upwards under the action of the second motion shaft 220, the pressing rotation plate 310 is driven to rotate towards the inner side so as to drive the pressing head 320 to press the sawing machine workpiece body 710 inwards, when the air cylinder 420 moves downwards, the first motion shaft 210 and the second motion shaft 220 contract inwards at the same time, and the pressing rotation plate 310 is driven to rotate outwards during the contraction process, thereby disengaging the compression head 320 from the saw work piece body 710.

The pedal assembly 500 is used for facilitating manual operation during power failure, and is specific, the pedal assembly 500 comprises a concave opening 510 formed in the side face of a lower concave pressing plate 410, a pedal rod 520 clamped in the concave opening 510 and a locking knob 530 for locking the pedal rod 520, when the pedal assembly is specifically used, the first electromagnet 440 and the second electromagnet 930 are powered off simultaneously in the moment of power failure, when the first electromagnet 440 loses magnetic force, the first electromagnet 440 is separated from the groove 430, once the power failure occurs, the cylinder 420 is directly separated from the lower concave pressing plate 410, the workpiece is pressed all the time by tension of the connecting spring 450, at the moment, a user rotates the locking knob 530 to stretch out the pedal rod 520, and the user can conveniently release the pressed workpiece through sole pressing.

Counterweight assembly 600 is used for gaining in weight, supplementary moving down, the person of facilitating the use puts the work piece, it is specific, counterweight assembly 600 is including seting up the through-hole 610 of indent template 410 side down, run through the board 620 of placing of through-hole 610, fix at the leading board 630 of placing board 620 preceding terminal surface and place the balancing weight 640 on placing board 620 surface, when specifically using, need the longer time to keep ascending gesture when needs hold-down head 320, when the person of facilitating the work piece is put, place balancing weight 640 in placing board 620, it is comparatively laborsaving like this.

The sawing machine workpiece assembly 700 includes a sawing machine workpiece body 710 disposed on a top surface of the mounting upright 110 and a mounting slot 720 cut into a surface of the sawing machine workpiece body 710.

Spacing subassembly 800 is used for maintaining the stability of placing board 620 when having a power failure, and is concrete, and spacing subassembly 800 is including fixing at the metal pole 810 of placing board 620 other end side, fixing at the stopper 820 of metal pole 810 side and seting up the spacing groove 830 of pressing concave plate 410 opposite side under, and when specifically using, when placing board 620 and shifting out the expansion completely, stopper 820 and the mutual joint of spacing groove 830 are spacing, prevent to rock.

The ejection assembly 900 is used for automatically ejecting a plate for storing the balancing weight 640, specifically, the ejection assembly 900 includes an L-shaped fixing block 940 fixed on one side of the lower concave-pressing plate 410, a tension spring 910 connecting the front plate 630 and the L-shaped fixing block 940, an interface end 920 arranged on the other side of the lower concave-pressing plate 410, and a second electromagnet 930 fixed on the side wall of the front plate 630 and clamped with the interface end 920, when the ejection assembly is used specifically, the first electromagnet 440 and the second electromagnet 930 are powered off at the moment of power failure, when the first electromagnet 440 loses magnetic force, the first electromagnet 440 is separated from the groove 430, so that once the cylinder 420 is powered off, the tension of the connection spring 450 presses the workpiece all the time, and once the power failure happens, the second electromagnet 930 also loses the magnetic force, the front plate 630 ejects under the action of the tension spring 910, and after ejection, the limiting block 820 and the limiting groove 830 are clamped with each other, and when the pressing head 320 needs to keep an upward posture for a long time.

With reference to fig. 1-4, in the present embodiment of a clamping device for a workpiece of a sawing machine and a clamping method thereof, when in specific use, first, a first moving shaft 210 and a second moving shaft 220 are respectively connected and assembled through a first connecting shaft 230 and a second connecting shaft 240, the first moving shaft 210 is connected with a concave pressing plate 410, and a pressing rotating plate 310 for clamping is connected with the second moving shaft 220, so as to drive the pressing to clamp the workpiece, a switch cylinder 420 is opened to start working and move up and down, when the cylinder 420 moves up, the first moving shaft 210 is driven to expand outward, and is driven to push upward by the second moving shaft 220, the pressing rotating plate 310 rotates inward to drive a pressing head 320 to press the workpiece body 710 of the sawing machine, when the cylinder 420 moves downward, the first moving shaft 210 and the second moving shaft 220 contract inward, the compressing rotating plate 310 is driven to rotate outwards in the contraction process, so that the compressing head 320 is separated from the sawing machine workpiece body 710: if the power is not cut off in the using process, the clamping production work is continued, if the power is cut off, the first electromagnet 440 and the second electromagnet 930 are simultaneously cut off at the moment of the power off, when the first electromagnet 440 loses the magnetic force, the first electromagnet 440 is separated from the groove 430, so that once the power is cut off, the air cylinder 420 is directly separated from the concave pressing plate 410, the workpiece is pressed all the time by the tension of the connecting spring 450, at the moment, the user rotates the locking knob 530 to extend the pedal rod 520, the user can conveniently release the pressed workpiece by pressing the sole, and once the power is cut off, the second electromagnet 930 also loses the magnetic force, the front plate 630 is popped out under the action of the tensioning spring 910, after the popping out, the limiting block 820 and the limiting groove 830 are mutually clamped, when the pressing head 320 needs to keep an upward posture for a long time, when the user puts the workpiece, the balancing weight 640 is placed in the placing plate, this is relatively labor-saving.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a sawing machine work piece clamping device which characterized in that includes:

the mounting frame assembly (100) comprises a vertically arranged mounting vertical frame (110), a base plate (120) fixed on the bottom surface of the mounting vertical frame (110) and a mounting bracket (130) arranged on the top surface of the base plate (120);

a moving shaft assembly (200) including a first moving shaft (210) connected to the mounting vertical frame (110), a second moving shaft (220) connected to the first moving shaft (210), a first connecting shaft (230) connecting the first moving shaft (210) with the mounting bracket (130), and a second connecting shaft (240) connecting the first moving shaft (210) with the second moving shaft (220);

a pressing assembly (300) including a pressing rotary plate (310) connected to the second moving shaft (220) and a pressing head (320) fixed to a front end of the pressing rotary plate (310);

the driving assembly (400) comprises a lower concave pressing plate (410) connected with the first moving shaft (210), an air cylinder (420) arranged above the lower concave pressing plate (410), a groove (430) formed in the top surface of the lower concave pressing plate (410), a first electromagnet (440) fixed at the tail end of the air cylinder (420) and a connecting spring (450) for connecting the top surface of the mounting vertical frame (110) with the lower concave pressing plate (410);

the sawing machine workpiece assembly (700) comprises a sawing machine workpiece body (710) arranged on the top surface of the mounting vertical frame (110) and a mounting groove (720) formed in the surface of the sawing machine workpiece body (710).

2. The clamping device for the sawing machine workpiece as claimed in claim 1, wherein there are two moving shaft assemblies (200), and the two moving shaft assemblies (200) are symmetrically arranged at the center line position of the base plate (120).

3. The sawing machine workpiece clamping device as claimed in claim 2, further comprising a pedal assembly (500), wherein the pedal assembly (500) comprises a concave opening (510) formed in the side surface of the lower concave pressing plate (410), a pedal rod (520) clamped in the concave opening (510), and a locking knob (530) for locking the pedal rod (520).

4. The sawing machine workpiece clamping device according to claim 3, further comprising a counterweight assembly (600), wherein the counterweight assembly (600) comprises a through hole (610) formed in the side surface of the lower concave-convex die plate (410), a placing plate (620) penetrating through the through hole (610), a front plate (630) fixed on the front end surface of the placing plate (620) and a balancing weight (640) placed on the surface of the placing plate (620).

5. The sawing machine workpiece clamping device according to claim 4, further comprising a limiting assembly (800), wherein the limiting assembly (800) comprises a metal rod (810) fixed on the other end side of the placing plate (620), a limiting block (820) fixed on the side surface of the metal rod (810) and a limiting groove (830) formed on the other side of the lower concave pressing plate (410).

6. The sawing machine workpiece clamping device according to claim 5, further comprising an ejection assembly (900), wherein the ejection assembly (900) comprises an L-shaped fixed block (940) fixed on one side of the lower concave-pressing plate (410), a tension spring (910) connecting the front plate (630) and the L-shaped fixed block (940), an interface end (920) arranged on the other side of the lower concave-pressing plate (410), and a second electromagnet (930) fixed on the side wall of the front plate (630) and clamped with the interface end (920).

7. A sawing machine workpiece clamping method is characterized by comprising the following specific steps:

s1: firstly, a first moving shaft (210) and a second moving shaft (220) are respectively connected and assembled through a first connecting shaft (230) and a second connecting shaft (240), the first moving shaft (210) is connected with a lower pressing concave plate (410), and a pressing rotating plate (310) for clamping is connected with the second moving shaft (220), so that the workpiece is conveniently clamped by driving to press;

s2, turning on a switch cylinder (420) to start working and move up and down, driving a first moving shaft (210) to expand outwards when the cylinder (420) moves upwards, and pushing upwards under the action of a second moving shaft (220), pushing to enable a pressing rotating plate (310) to rotate towards the inner side so as to drive a pressing head (320) to press towards the inner side to press the sawing machine workpiece body 710, and driving the pressing rotating plate (310) to rotate towards the outer side in the contraction process when the cylinder (420) moves downwards, so that the pressing head (320) is separated from the sawing machine workpiece body (710):

s3: if the power is not cut off in the using process, the step S5 is executed to continue the clamp production work, and if the power is cut off, the step S4 is selected to be executed;

s4: the first electromagnet (440) and the second electromagnet (930) are powered off at the moment of power failure, when the first electromagnet (440) loses magnetic force, the first electromagnet (440) is separated from the groove (430), so that in case of power failure, the air cylinder (420) is directly separated from the lower concave pressing plate (410), the workpiece is pressed by tension of the connecting spring (450) all the time, the user rotates the locking knob (530) to stretch out the pedal rod (520), the user can release the pressed workpiece through pressing down the sole of the foot, and once the power failure happens, the second electromagnet (930) loses magnetic force, the front plate (630) pops out under the action of the tensioning spring (910), after popping out, the limiting block (820) is clamped with the limiting groove (830), when the pressing head (320) needs to keep an upward posture for a long time, when a user places the workpiece, the balancing weight (640) is placed in the placing plate (620), thus saving labor;