CN207327116U - Manual emery line cutting machine - Google Patents

Abstract

The utility model provides a manual diamond wire cutting machine, comprising: a bed, a gear transmission device, a crank slider guide rod mechanism, a wire take-up and release device, a fixed supporting material and a floating pressing device, a wire transporting mechanism, and a fixed workbench; The working process of the whole machine is as follows: the motor drives the driving gear to rotate, so that the two working gears meshing with the upper and lower gears respectively rotate, and the crankshafts with a phase difference of 180 degrees and equal eccentricity are installed on the working gears respectively, through rolling bearings It is connected with the slider guide rod to convert the rotary motion of the working gear into the linear reciprocating motion of the upper and lower slider guide rods. At the same time, there is a wire take-up and release device on the slider guide rod, which is used to fix, replace and change the work of the emery wire. In the section, the floating pressing material and the fixed supporting device press the non-metallic plate, so that the instantaneous forward movement distance and speed of the emery wire installed on the guide rods of the upper and lower sliders are equal to the instantaneous backward movement distance and speed, and the non-metallic workpiece is finished. Reciprocating cutting.

Description

A manual diamond wire cutting machine

technical field

The utility model is a novel manual corundum wire cutting machine aimed at cutting non-metal plates, especially composite material plates, and belongs to the processing field of non-metal plates, especially composite material plates.

Background technique

Nowadays, cutting machines for non-metallic plates, especially composite material plates, are very rare in the market, and cutting machines for cutting non-metallic plates into various shapes are even rarer. At present, most of them are cut with manual toothless saws. This cutting method has low efficiency, large processing errors, poor cutting stability, and relatively low quality; the application number is CN201610804880.7 A kind of diamond wire cutting machine for composite material plates, its wire feeding mechanism is relatively complicated, processing and debugging are difficult, and uneconomical When working, it is easy to form a pile of wires at the incision and the tension of the sanding line is too large, which will lead to frequent wire breakage.

Utility model content

For this reason, this patent application has designed a kind of manual corundum wire cutting machine for composite material plates, which is used for cutting non-metallic plates, especially composite material plates; The crank slider guide rod mechanism is used to drive the emery wire to reciprocate to cut the workpiece. The instantaneous speed of the take-up and pay-off device is synchronous and consistent, and the phase difference is 180 degrees. The problem is that the processing efficiency is high, the structure is simple, the production cost is low, and the work is stable.

The technical scheme that this application adopts is as follows:

A manual diamond wire cutting machine, including a bed, a crank slider guide rod mechanism, a wire take-up and release device, a fixed supporting and floating pressing device, and a fixed workbench;

A motor is installed on the bed, and the motor drives the driving gear to rotate. The driving gear meshes with two working gears with the same structural size. Two crankshafts with equal eccentricity, the two crankshafts are respectively connected to an upper slider guide rod and a lower slider guide rod through rolling bearings; the upper slider guide rod and the lower slider guide rod have retractable line device, used to fix the emery wire, replace the emery wire and change the working section of the emery line; the fixed support device is installed on the fixed workbench, and the floating pressing device is installed on the fuselage; the fixed support The device and the floating pressing device are used to press the non-metallic sheet to reduce the vibration of the non-metallic sheet during the cutting process; the loading, unloading and feeding movements of the cut sheet can be completed by manual operation;

One end of the emery wire is fixed on the lower slider guide rod take-up and release device, the other end of the emery wire passes through the godet wheel mechanism installed at the lower part of the bed, passes through the hole in the center of the fixed support and the emery on it. The line positioning device is used to process non-metallic plates, then pass through the emery line positioning device on the floating pressing device and the center hole of the hollow cylinder, then pass through the godet wheel mechanism on the upper part of the bed, and finally fix it on the upper slider On the guide rod take-up and release device;

There is a round hole in the center of the fixed workbench, which is used to install the lower fixed supporting device. When installing, it must be aligned with the floating pressing device installed on the upper part of the bed, and the positioning of the emery line installed on the fixed supporting device should be adjusted. The device is centered with the wire hole of the emery wire positioning device installed on the floating pressing device. The wire hole is formed by two identical positioning guide wheels. After installation, the center line of this section of emery wire is perpendicular to workbench.

There are bearings at both ends of the guide wheel of the guide wheel mechanism to ensure the stability of the guide wheel rotation. The size of the emery groove of the guide wheel is equal to the diameter of the emery wire to ensure that no damage occurs when the emery wire cuts non-metallic plates. Offset, due to the setting of the emery wire positioning device, reduces the lateral and longitudinal vibration of the emery wire to ensure cutting accuracy.

The monitoring small camera is installed at the lower part of the floating pressing device, which can clearly see the pre-set cutting track line to process the workpiece during the cutting process.

A vacuum nozzle is installed on the upper part of the fixed supporting device and the bottom of the floating pressing device. The vacuum nozzle is connected to the vacuum pneumatic circuit to suck and discharge the tiny particles and dust generated during the cutting process, improving the working environment of the operators.

Further, the driving gear and the working gear are fixed on the bed through rolling bearings, and the two working gears are mounted symmetrically on the basis of a horizontal plane passing through the axis of the driving gear.

Further, the working grooves of the upper and lower slider guide rods are respectively installed on the two crank shafts through rolling bearings, so that the forward movement distance and instantaneous speed of the upper slider guide rod are the same as the backward movement distance and instantaneous speed of the lower slider guide rod. Equal, so that when the diamond wire cuts the workpiece reciprocally, the working length remains constant.

Further, one end of the slider guide rod is connected to the bed through the dovetail guide groove, and the other end of the slider guide rod is connected to the rolling bearing installed on the crankshaft through the working groove, and the working groove and the rolling bearing should be eliminated during use. The connection gap between the slider guide rod and the dovetail guide groove should be eliminated, so that when the slider guide rod changes the direction of motion, the diamond wire does not generate vibration or reverse motion gap.

Further, the emery wire is connected to the slider guide rod through the wire retracting device, and moves together with the slider guide rod; the wire retracting device includes a fixed wire device and a wire retracting device;

The fixed emery wire device is composed of a hexagonal bolt with an anti-loosening device and a hexagon socket head screw installed on the guide rod of the slider. The hexagonal bolt with the anti-loosening device has a circular hole in the radial direction. The diameter of the hole is 0.1-0.5mm larger than that of the emery wire, and the axial internal thread hole is processed between the circular through hole and the center of the head of the hexagonal screw with the anti-loosening device, just enough to screw the hexagonal socket head screw in. The emery wire passes through the circular through hole and is compressed with a tightened hexagon socket head screw, and the emery wire is tensioned by rotating the hexagon bolt with an anti-loosening device, so that the emery wire does not move relative to each other during the working process;

The take-up and release device is composed of bolts, nuts, washers and sleeves, the bolts pass through the slider guide rod and are fixed by nuts; the screw rod is equipped with a sleeve, and the sleeve is in contact with the slider guide rod There is a washer between the surfaces; the emery wire passing through the circular through hole is wound on the sleeve and fixed on the slider guide rod through bolts, nuts and washers. After the emery wire is used for a period of time, it is loosened and fixed on the sleeve. , The bolts and nuts on the guide rods of the two lower sliders and the hexagon socket head cap screws, rotate the sleeve, replace the working section of the emery line, and the emery line can continue to process the workpiece.

Further, the axis of the hexagonal bolt with the anti-loosening device and the bolt in the anti-loosening device are perpendicular to the axis of the slider guide rod; specifically, a groove is provided on the slider guide rod, and the concave The bottom of the groove is provided with a threaded hole that runs through the guide rod of the slider, and the hexagonal bolt with the anti-loosening device passes through the threaded hole and is fixed and anti-loosened with a nut, and the nut is just arranged in the groove.

The working principle of the above device and the specific working process of each part are as follows:

The motor drives the driving gear to rotate the two working gears of the same geometric size that are meshed with the upper and lower gears respectively. Crankshafts with a phase difference of 180 degrees and equal eccentricity are installed on the working gears. Through rolling bearings and Slider guide rod connection converts the rotary motion of the working gear into the linear reciprocating motion of the upper and lower slider guide rods, and the emery wire installed at the end of the upper and lower slider guide rods realizes the reciprocating cutting of non-metallic workpieces At the same time, there is a retracting and releasing device on the guide rod of the slider, which is used to fix the emery wire, replace the emery wire and change the working section of the emery wire. The bottom surface of the floating pressing device is equipped with a movable pressing ball mechanism and a small monitoring camera. The pressing ball mechanism presses the non-metallic sheet during the cutting process to reduce the vibration of the non-metallic sheet during the cutting process; while the small monitoring camera can clearly see the pre-set cutting trajectory during the cutting process, so that the operator can The workpiece is cut according to the preset cutting trajectory. As for the loading, unloading and feeding movement of the cut sheet, it can be done manually. This manual diamond wire cutting machine can realize the fast movement of the diamond wire, improve the working efficiency of the diamond wire cutting machine, overcome the problems of the traditional diamond wire cutting machine with complex structure and high manufacturing cost, and it is easy to form piles of wires and wires at the incision. The tension of the sanding line is too large, resulting in the problem of frequent wire breakage.

When the crankshaft rotates with the working gear, the angular velocity of its rotation is ω, and the eccentric distance of the crankshaft on the working gear is r, then within time t, the advancing distance of the lower slider guide rod is s ₁ =r+rcosωt; In time t, the distance advanced by the guide rod of the upper slider is s ₂ =r+rcos(180+ωt), then the sum of the distances advanced by the guide rod of the upper slider at any time is a constant 2r, that is, the guide rod of the upper slider moves forward The distance is exactly equal to the retreat distance of the guide rod of the lower slider, which ensures that the length of the emery wire remains unchanged during the cutting process, that is to say, the emery wire will not be elongated or shortened when it is working, and the working stroke of the entire emery wire cutting is 2r , when the motor speed and transmission ratio are determined, the cutting speed of the manual diamond wire cutting machine is proportional to the eccentric distance of the crankshaft on the working gear.

The wire feeding path of the wire feeding mechanism is as follows: one end of the emery wire is fixed on the wire take-up and release device of the lower slider guide rod, and the other end of the emery wire passes through the guide wheel mechanism installed at the lower part of the bed to change the direction of movement and pass through Fix the center hole of the supporting device and the emery wire positioning device on it, cut the workpiece, then pass through the emery wire positioning device and the hollow cylinder on the floating pressing device, and then pass through the godet wheel mechanism on the upper part of the bed, and then Change the direction of movement, and finally fix it on the upper slider guide rod take-up and pay-off device.

The movement and installation position of the two working gears are as follows: the driving gear drives two working gears of the same structural size to rotate in the same direction, the driving gear and the working gear are fixed on the bed through rolling bearings, and the two working gears pass through the axis The horizontal plane of the line is the datum symmetrical installation.

The movement and installation position of the two slider guide rods are as follows: two working gears with the same rotation direction have a crank shaft with the same eccentricity and a phase difference of 180 degrees, and the working grooves of the upper and lower slider guide rods pass through The rolling bearings are respectively installed on the two crank shafts, so that the forward movement distance and speed of the upper slider guide rod are equal to the backward movement distance and speed of the lower slider guide rod at all times, so that when the emery wire reciprocates to cut the workpiece, the working length is always kept constant. Change, there will be no pile of wires and excessive tension of the sand line at the incision, which will cause the problem of broken wires.

In order to improve the processing accuracy of the diamond wire cutting machine: one end of the slider guide rod is connected with the bed through the dovetail guide groove, the other end of the slider guide rod is connected with the rolling bearing installed on the crank shaft through the working groove, the slider guide rod The function is to convert the rotary motion of the working gear into the linear motion of the diamond wire. During use, the connection gap between the working groove and the rolling bearing should be eliminated, and the connection gap between the slider guide rod and the dovetail guide groove on the bed should also be eliminated. , so that when the slider guide rod changes the direction of motion, the diamond wire does not generate vibration or reverse motion gap.

The fixing and retracting of the corundum wire is completed by the corundum wire take-up and release device, which is installed on the slider guide rod and moves together with the slider guide rod. The take-up and release device includes a fixed corundum wire device and a retractable corundum wire Device, the fixed emery wire device is composed of a hexagonal bolt with an anti-loosening device and a hexagon socket head screw. The hexagonal bolt with an anti-loosening device has a circular through hole in the radial direction, and its diameter is 0.1 larger than the diameter of the emery wire. ~0.5mm, and process the axial internal thread hole between the circular through hole and the center of the head of the hexagonal screw with the anti-loosening device, just enough to screw the hexagonal socket head screw in, pass the emery wire through the circular through hole and use The tightened hexagon socket head screw is pressed, and the emery wire is tensioned by rotating the hexagon bolt with an anti-loosening device, so that the emery wire does not move relative to each other during the working process; the take-up and release device consists of bolts, nuts, washers 1. Composed of a sleeve, the emery wire passing through the circular through hole is wound on the sleeve, and fixed on the slider guide rod through bolts, nuts and washers. When a section of emery wire loses its ability to continue processing non-metallic plates after being used for a period of time, loosen the bolts and nuts and hexagon socket head screws fixed on the guide rods of the upper and lower sliders, rotate the sleeve, and replace the emery wire Then readjust the fixing device of the emery wire installed on the guide rods of the upper and lower sliders and the take-up and release device of the emery wire, and the emery wire can continue to process the workpiece. Compared with the traditional diamond wire cutting machine, its structure is simple and easy to process, and there will be no problems of piled wires and excessive wire tension at the incision, resulting in broken wires.

The structure design of the guide wheel mechanism is as follows: the two ends of the guide wheel of the wire transport mechanism are mounted on the bearing seat through bearings, and the bearing seat is fixed on the bed, and its function is to change the movement direction of the emery wire. In order to ensure the movement accuracy of the diamond wire, the size of the diamond wire groove on the godet wheel is equal to the diameter of the diamond wire, so as to ensure that the diamond wire does not deviate when cutting non-metallic plates. Due to the setting of the emery wire positioning device, the lateral and longitudinal vibration of the emery wire is reduced to ensure cutting accuracy.

There is a round hole in the center of the workbench of the manual sheet metal emery wire cutting machine, which is used to install the lower fixed supporting device. When installing, it must be aligned with the floating pressing device installed on the upper part of the bed. The emery wire positioning device and the wire hole of the emery wire positioning device installed on the floating pressing device are aligned, and the centerline of the emery wire after installation is perpendicular to the worktable. The monitoring small camera is installed at the lower part of the floating pressing device, and the preset cutting track can be seen clearly during the cutting process, which is convenient for the operator to feed the workpiece according to the cutting track to complete the cutting.

The beneficial effects of the utility model are as follows:

The utility model discloses a composite material plate manual emery wire cutting machine, which is composed of a gear transmission device, a crank slider guide rod mechanism, a wire receiving and releasing device, a supporting material and a floating pressing device, a wire transporting mechanism, a fixed workbench and a bed. body composition. The gear transmission device is mainly composed of a motor, a coupling, a driving gear, a working gear, a rolling bearing support and a bed. The motor drives the driving gear through the coupling, and the driving gear meshes with the upper and lower working gears respectively; the working gear passes through The rolling bearing is connected with the bed and rotates with the rotation of the driving gear, and the upper and lower working gears with the same geometric size have the same rotation direction and speed, and they are installed symmetrically on the basis of the horizontal plane passing the axis of the driving gear to ensure the transmission movement Accurate and stable, the instantaneous movement displacement and speed of the guide rods of the upper and lower sliders are synchronized and consistent, and this effect cannot be achieved by other transmission mechanisms.

The crank slider guide mechanism is mainly composed of crank shaft, rolling bearing, slider guide rod, and dovetail guide groove. The crank shaft is fixed on the eccentric circumference of the working gear, and the crank shaft of the upper working gear and the crank shaft of the lower working gear have an initial phase The difference is 180 degrees, and the eccentricity is strictly the same, requiring two working gears with the same geometric size to be processed at the same time; a rolling bearing is installed on the crankshaft, and the rolling bearing moves in the working groove of the slider guide rod, driving the slider guide rod through The dovetail guide groove processed on the bed performs linear reciprocating motion. During processing, the connection gap between the rolling bearing on the crankshaft and the working groove on the slider guide rod, and the connection gap between the slider guide rod and the dovetail guide rod processed on the bed must be strictly controlled. The connection gap between the grooves makes the slider guide rod change the direction of motion without vibration and reverse motion gap, and ensures the constant tension of the diamond wire for cutting. Otherwise, the instantaneous release and take-up displacement and speed of the upper and lower slider guide rods will be out of sync, that is, the forward movement distance and instantaneous speed of the upper slider guide rod will not be the same as the backward movement distance and instantaneous speed of the lower slider guide rod. Equal, it will form a pile of wires and excessive tension of the sand wire at the incision of the workpiece, or even break the wires, making the cutting process impossible.

The take-up and pay-off device of the emery wire is installed on the slider guide rod, and it makes a reciprocating linear motion together with the slide guide rod. The device consists of a hexagonal bolt with an anti-loosening device and a hexagon socket head screw. The hexagonal bolt with an anti-loosening device has a circular through hole in the radial direction, and its diameter is 0.1-0.5mm larger than that of the emery wire. The wire should pass through this hole, and an axial internal thread hole is processed between the circular through hole and the center of the head of the hexagonal screw with the anti-loosening device, just enough to screw the hexagonal socket head screw in, and pass the emery wire through The circular through hole is pressed with the tightened hexagon socket head screw, and the diamond wire is tensioned by rotating the hexagon bolt with the anti-loosening device, so that the diamond wire does not move relative to each other during the working process; the take-up and release device consists of Composed of bolts, nuts, washers, and sleeves, the emery wire passing through the circular through hole is wound on the sleeve, and fixed on the slider guide rod through bolts, nuts, and washers. When a section of emery wire loses its ability to continue processing non-metallic plates after being used for a period of time, loosen the bolts and nuts and hexagon socket head screws fixed on the guide rods of the upper and lower sliders, rotate the sleeve, and replace the emery wire Then readjust the fixing device of the emery wire installed on the guide rods of the upper and lower sliders and the take-up and release device of the emery wire. The emery wire can continue to process the workpiece, and the whole process is convenient and fast.

The emery wire feeding mechanism sequentially passes through the take-up and release device on the upper slider guide rod, the upper godet wheel mechanism for changing the movement direction of the emery wire, the hollow cylinder in the floating pressing device and the emery wire positioning device, and passes through the emery wire positioning device. The cut composite material plate is connected to the emery wire positioning device and the center hole on the lower fixed support device, then passes through the lower godet wheel mechanism that changes the movement direction of the emery wire, and finally connects to the retractable wire on the lower slider guide rod. Wire device, in which both ends of the godet wheel mechanism have bearings mounted on the bearing seat, the bearing seat is fixed on the bed, and the size of the emery wire guide groove on the godet wheel is equal to the diameter of the emery wire, ensuring The stability of the godet wheel rotation and cutting accuracy.

The fixed supporting device and floating pressing device are borrowed from the design of the patent CN205969535U, a kind of diamond wire cutting machine for composite materials. The fixed supporting device is installed in the round hole in the center of the fixed workbench. The floating pressing device on the upper part of the body is aligned to ensure that the wire holes of the emery wire positioning device installed on the fixed supporting device and the emery wire positioning device installed on the floating pressing device are aligned. Note that the wire holes here are composed of two The same positioning guide wheel is formed, and the centerline of the emery line after installation is perpendicular to the worktable. The monitoring small camera is installed at the lower part of the floating pressing device, which can clearly see the preset cutting track line during the cutting process, so that the operator can feed the workpiece according to the cutting track line to complete the cutting.

The steel balls in the fixed supporting device and the floating pressing device are in contact with the balls embedded in the ball guide bushing. The non-metallic plate is pressed against by the steel balls from top to bottom. When the operator moves the workpiece, the steel balls can rotate freely without hindering the non-metallic plate. Movement of sheet metal. The spring in the floating pressing device exerts a pre-pressure to make the steel ball and the non-metal plate closely contact, and the vibration when the material is cut is reduced due to the existence of the pre-pressure. The emery wire positioning device is added to the fixed supporting device and the floating pressing device, which reduces the transverse and longitudinal vibration of the emery wire during cutting and ensures the cutting accuracy; at the same time, the upper part of the fixed supporting device and the floating pressing device The bottom of the machine is equipped with a vacuum nozzle, which is connected to the vacuum pneumatic circuit, sucks and discharges the tiny particles and dust generated during the cutting process, improves the working environment of the operators, and has a certain cooling effect on the emery wire; A small camera with monitoring is installed at the lower part of the floating pressing device. By adjusting the field of view of the camera, the preset cutting track can be seen clearly during the cutting process, which is convenient for the operator to feed the workpiece according to the cutting track to complete cutting.

Description of drawings

Figure 1 manual diamond wire cutting machine;

Fig. 2 driving gear drive device;

Fig. 3 crank slider guide rod mechanism;

Figure 4 slider guide rod;

Figure 5 take-up and pay-off device;

Fig. 6 A-A sectional view of Fig. 5, corundum wire fixing device;

Fig. 7 B-B sectional view of Fig. 5, take-up and pay-off device;

Figure 8, Figure 9 fixed supporting device;

Figure 10 fixes the structure of the ball holding material;

Figure 11, Figure 12 floating pressing device;

The exploded diagram of Fig. 13 movable ball binder structure;

The sectional view of Fig. 14 movable ball binder structure;

Fig. 15 structure of emery wire positioning device;

Figure 16 godet wheel;

Figure 17 Godet wheel structure.

In the figure: 1. Bed, 2. Motor, 3. Coupling, 4. Bearing seat, 5. Vacuum suction nozzle, 6. Carborundum wire positioning device, 7. Hollow cylinder, 8. Godet wheel mechanism, 9. Movable pressing ball mechanism, 10, fixed workbench, 11, driving gear, 12, upper working gear, 13, lower working gear, 14, slider guide rod, 15, crankshaft, 16, take-up and pay-off device, 17, Nut, 18, emery wire sleeve, 19, washer, 20, bolt, 21, rolling bearing, 22, end cover, 23, godet wheel support seat, 24, felt ring, 25, godet wheel bearing, 26, top Nut, 27, spring, 28, ball, 29, ball sleeve, 30, steel ball, 31, positioning guide wheel, 32, positioning guide wheel support seat, 33, hexagon bolt, 34, hexagon socket head cap screw, 35, clearance Adjusting pad, 36, fixed support ball mechanism, 37, cutting monitoring camera, 38, emery wire.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As introduced in the background of the research, in the prior art, there are low cutting efficiency, large processing errors, poor cutting stability, and relatively low quality; and the application number is CN201610804880.7, a composite material sheet diamond wire cutting machine, which operates The wire mechanism is relatively complicated, difficult to process and debug, and uneconomical. When working, it is easy to form a pile of wires at the incision and the tension of the sand wire is too large, resulting in frequent wire breakage. In order to solve the above technical problems, this application proposes a manual diamond wire Cutting Machine.

Below in conjunction with accompanying drawing 1 to Fig. 15 and embodiment this patent application is described further:

Figure 1 is the general layout of the diamond wire cutting machine for composite material plates, which mainly includes the following parts: gear transmission device, crank slider guide rod mechanism, wire take-up and release device, fixed support and floating pressure device, wire transport mechanism, Composition of fixed workbench and bed;

A motor is installed on the bed, and the motor drives the driving gear to rotate. The driving gear meshes with two working gears with the same structural size. The two crankshafts are respectively connected to an upper slider guide rod and a lower slider guide rod through rolling bearings; the upper slider guide rod and the lower slider guide rod are equipped with take-up and pay-off devices , for fixing the emery line, replacing the emery line and changing the working section of the emery line; the fixed support device is installed on the fixed workbench, and the floating pressing device is installed on the fuselage; the fixed support device and The floating pressing device is used to press the non-metallic sheet to reduce the vibration of the non-metallic sheet during the cutting process; the loading, unloading and feeding movements of the cut sheet can be completed manually.

The working process of the composite material sheet diamond wire cutting machine: the motor drives the driving gear, so that the two working gears with the same geometric size and the same rotation direction that mesh with the upper and lower gears respectively rotate in the same direction, and the working gears are respectively installed with a phase difference of 180 The crankshafts with the same degree and equal eccentricity are connected through the rolling bearings and the working groove on the slider guide rod to convert the rotational motion of the working gear into the linear reciprocating motion of the upper and lower slider guide rods. The two crankshafts make the upper slider The instantaneous forward movement distance and speed of the guide rod are equal to the instantaneous backward movement distance and speed of the lower slider guide rod, so that the working length of the emery wire fixed on the upper and lower slider guide rods is always kept constant when cutting the workpiece in a reciprocating manner. The emery wire at the end of the guide rod of the upper and lower sliders realizes the reciprocating cutting of the non-metallic workpiece, and will not form a pile of wires at the incision of the workpiece, excessive tension of the emery wire, or even wire breakage. At the same time, there is a wire retracting device on the guide rod of the slider, which is used to fix the emery wire, replace the emery wire and change the working section of the emery wire. The floating pressing device and the fixed supporting device press the non-metallic plate to reduce the cutting process The vibration of the non-metal sheet, the loading, unloading and feeding movement of the cut sheet can be completed by manual operation. The components of the whole machine will be described one by one below.

1. The gear transmission device is described in Figure 1, Figure 2 and Figure 3. The motor 2 drives the driving gear 11 through the coupling 3 and the bearing seat 4, and drives the upper working gear 12 and the lower working gear 13 to rotate in the same direction. The gear 11 and the working gears 12 and 13 are all fixed on the bed 1, and the two working gears 12 and 13 are symmetrically arranged and installed on the basis of the horizontal plane passing through the axis line of the driving gear.

2. The crank slider guide rod mechanism is described in Fig. 1, Fig. 3 and Fig. 4. The crank shaft 15 on the upper working gear 12 and the lower working gear 13 passes through the rolling bearing 21 and the slider guide rod 14. The groove converts the rotary motion of the working gear into the linear reciprocating motion of the slider guide rod; because the two working gears 12 and 13 with the same geometric size and the same direction of rotation each have a crank with the same eccentricity and a phase difference of 180 degrees shaft, the working grooves of the upper and lower slider guide rods are respectively installed on the two crankshafts through rolling bearings 21, so that the instantaneous forward movement distance and speed of the upper slider guide rod are equal to the instantaneous backward movement distance and speed of the lower slider guide rod , when the emery wire cuts workpieces reciprocally, the working length remains constant. One end of the slider guide rod 14 is connected with the bed 1 through the dovetail guide groove, and the other end of the slider guide rod is connected with the rolling bearing 21 installed on the crank shaft through the working groove, and the gap between the working groove and the rolling bearing should be eliminated during use. Connection gap, to eliminate the connection gap between the slider guide rod and the dovetail guide groove (can be realized by grinding the gap adjustment pad 35), so that when the slider guide rod changes the direction of motion, the emery wire does not vibrate or reverse Movement gap.

When the crankshaft rotates with the working gear, the angular velocity of its rotation is ω, and the eccentric distance of the crankshaft on the working gear is r, then within time t, the advancing distance of the lower slider guide rod is s ₁ =r+rcosωt; In time t, the distance advanced by the guide rod of the upper slider is s ₂ =r+rcos(180+ωt), then the sum of the distances advanced by the guide rod of the upper slider at any time is a constant 2r, that is, the guide rod of the upper slider moves forward The distance and speed are exactly equal to the distance and speed of the guide rod of the lower slider, which ensures that the length of the emery wire remains unchanged during the cutting process, that is to say, the emery wire will not be elongated or shortened during work, and will not form a Stacked wire, excessive tension of the sand wire and broken wire, the working stroke of the entire diamond wire cutting is 2r, when the motor speed and transmission ratio are determined, the cutting speed of the manual diamond wire cutting machine is proportional to the eccentric distance of the crank shaft on the working gear Proportional.

3. The take-up and take-off device 16 is illustrated in Fig. 1, Fig. 4, Fig. 5, Fig. 6 and Fig. 7. The corundum wire 38 is connected to the slider guide rod 14 through the take-up and take-off device, and moves together with the slider guide rod The take-up and pay-off device includes a fixed emery wire device as shown in Figure 6 and a take-up and pay-off device as shown in Figure 7, and the fixed emery wire device consists of a hexagonal bolt 33 with a loosening device and a hexagon socket head screw 34 Composition, the hexagonal bolt with anti-loosening device has a circular through hole in the radial direction, its diameter is 0.1-0.5mm larger than the diameter of the emery wire 38, and the hexagonal screw head with anti-loosening device is connected from the circular through hole to the head of the hexagonal screw with anti-loosening device Axial internal thread holes are processed in the center, just enough to screw in the hexagon socket head screw 34, pass the emery wire 38 through the circular through hole and press it with the tightened hexagon socket head screw 34, and the anti-loosening device is provided by rotation The hexagonal bolt 33 tensions the emery wire 38, and makes the emery wire not move relative to each other during the working process. The anti-loosening of the hexagonal bolt 33 is realized by the nut 17; Sleeve 18 is made up, and the emery wire 38 that passes through circular through hole is wound on the sleeve 18, is fixed on the slider guide rod 14 by tightening bolt 20, nut 17 and washer 19, to prevent the sleeve from rotating. After the emery wire has been used for a period of time, it will lose its ability to continue processing. Loosen the bolts 20, nuts 17 and hexagon socket head screws 34 fixed on the guide rods of the upper and lower sliders, rotate the sleeve, and replace the working section of the emery wire. After the adjustment is completed, tighten the hexagon bolt 33, the hexagon socket cap screw 34 and the bolt 20, and the emery wire can continue to process the workpiece.

4. The fixed supporting material and floating pressing device are illustrated in Fig. 1, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14 and Fig. 15, as shown in Fig. 8 and Fig. 9 The upper part of the fixed supporting device shown in Figure 11 and the bottom of the floating pressing device shown in Figure 12 are equipped with a vacuum suction nozzle 5, which is connected to the vacuum pneumatic circuit to suck the tiny particles and dust generated during the cutting process. Go out and improve the working environment of operators. Wherein the fixed supporting device as shown in Figure 8 is installed in the circular hole at the center of the fixed workbench 10, and it must be aligned with the floating pressing device shown in Figure 11 and Figure 12 on the top of the bed during installation to ensure that The emery line positioning device installed on the fixed support device (as shown in Figure 15) and the emery line positioning device installed on the floating pressing device (as shown in Figure 15) are aligned with the wire holes, pay attention to the wire holes here It is formed by two identical positioning guide wheels 31. After installation, the center line of this section of emery line is perpendicular to the workbench. The small monitoring camera 37 is installed at the lower part of the floating pressing device. See clearly the pre-set cutting track for feeding and processing; the fixed supporting device is composed of a circular mounting base plate with a through hole in the middle, a fixed supporting ball mechanism 36, a vacuum nozzle 5, an emery wire positioning device 6 and an installation The emery wire positioning device is composed of a hollow cylindrical platform. The circular installation base plate with a through hole in the middle should be installed on the fixed workbench. Pass through the center hole of the mounting cylinder to reach the workpiece to be cut. The fixed material supporting ball mechanism 36 is made of the structure shown in Figure 10, and the ball 28, the ball sleeve 29 and the steel ball 30 are just installed in the concave spherical surface of the fixed material supporting frame, and play a supporting role to the processed non-metallic plate; And the floating pressing device shown in Figure 11,12 is made of vacuum suction nozzle 5, emery wire positioning device 6, hollow cylinder 7, movable pressing ball mechanism 9, emery wire positioning device and cutting monitoring camera 37, from processing The corundum wire coming out of the workpiece passes through the corundum wire positioning device and the center hole of the cylindrical platform where the corundum line positioning device is installed, and enters the godet wheel structure shown in Figure 16 and Figure 17 through the hollow cylinder piston and hollow cylinder rod in the hollow cylinder. During manual feeding, the hollow cylinder can be lifted, and when the workpiece is cut, the hollow cylinder can be pressed down, and the movable pressing ball mechanism 9 and the fixed supporting ball mechanism 36 can compress the workpiece and locate in the thickness direction. The active pressing ball mechanism 9 here is made up of the structure shown in Figure 13 and Figure 14, comprises spring 27, ball 28, ball sleeve 29, steel ball 30, concave spherical bracket and active pressing ball cylinder body composition, Preload is provided by the spring to reduce the vibration and noise when the processed non-metal sheet is processed.

Note that the emery wire positioning device shown in Figure 15 is composed of positioning guide wheel 31, positioning guide wheel support seat 32, end cover 22, godet wheel support seat 23, felt ring 24, godet wheel bearing 25, counter nut 26 and Emery wire 38 is formed, and the size of the emery groove of positioning guide wheel 31 is equal to the diameter of emery wire, and the same positioning guide wheel 31 of two geometric dimensions is arranged under the action of other components such as positioning guide wheel support seat 32, and emery wire 38 It is clamped in the circular hole formed by the two positioning guide wheels.

5. The wire feeding mechanism of the emery wire starts from the take-up and release device 16 of the lower slider guide rod 14, and the other end of the emery wire passes through the wire guide wheel structure installed at the lower part of the bed as shown in Figure 17 to change the movement After entering the direction, it enters the middle hole of the circular mounting base plate installed on the fixed workbench, the emery wire positioning device and the center hole of the cylindrical table on which the corresponding device is installed, and passes through to reach the workpiece to be cut, and the emery wire coming out of the processed workpiece The wire passes through the emery wire positioning device and the center hole of the cylindrical platform where the emery wire positioning device is installed, passes through the hollow cylinder piston and hollow cylinder rod in the hollow cylinder and enters the godet wheel structure shown in Figure 16 and Figure 17, and changes the direction of motion again Afterwards, the other end is just fixed on the take-up and pay-off device 16 of upper slider guide rod 14. After the emery wire has been used for a period of time, it will lose its ability to continue processing. Loosen the bolts 20, nuts 17 and hexagon socket head screws 34 fixed on the guide rods of the upper and lower sliders, rotate the sleeve, and replace the working section of the emery wire. After the adjustment is completed, tighten the hexagon socket cap screw 34, the hexagonal bolt 33 and the bolt 20, and the emery wire can continue to process the workpiece. The godet wheel structure here is composed of godet wheel mechanism 8, end cover 22, godet wheel support seat 23, felt ring 24, godet wheel bearing 25, and top nut 26 as shown in Figure 17, which plays a change The effect of the direction of movement of the emery wire.

6. Both the bed 1 and the fixed workbench 10 are welded parts. The specific structure and function are illustrated in FIG. 1, and they act as carriers, and other devices are installed on these two parts.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (9)

1. A kind of 1. manual carborundum line cutting machine, it is characterised in that including lathe bed, crank block guide-bar mechanism, take-up and pay-off device, Fixed material-supporting device, floating material pressing device and stationary work-table；

   One motor, the motor driving driving gear rotation, the driving gear and two are installed on the lathe bed The equal working gear of a structure size engages, and phase difference 180 degree and eccentricity are provided with described two working gears Two equal crank axles, two crank axles each connect a top shoe guide rod by rolling bearing respectively and sliding block is led Bar, two crank axles cause instantaneous the forward travel distance and speed of top shoe guide rod and the instantaneous setback of sliding block guide rod Distance and speed are equal, and the carborundum line for making to be fixed on upper and lower slider waveguide rod is when moving in circles cutting workpiece, active length Remain constant；There is take-up and pay-off device on the top shoe guide rod and sliding block guide rod, for fixing carborundum line, replacing Carborundum line and the active section for changing carborundum line；The fixation material-supporting device is installed on stationary work-table, and described is floating Dynamic material pressing device is installed on fuselage；Fixed material-supporting device and floating material pressing device are used to push down nonmetal plate；

   One end of carborundum line is fixed on sliding block guide rod take-up and pay-off device, and the other end of carborundum line is passed through lathe bed The godet roller mechanism of lower part, carborundum line positioner through the hole for fixing material-supporting device center and thereon, to non-metal board Material is processed, and the carborundum line positioner being subsequently passed through on floating material pressing device and hollow cylinder axis hole, then wear again The godet roller mechanism on lathe bed top is crossed, is finally fixed on top shoe guide rod take-up and pay-off device；

   At the stationary work-table center there is circular hole, material-supporting device is fixed for installing lower part, when installation will and be installed on The floating material pressing device centering on lathe bed top, adjustment are installed on the carborundum line positioner of fixed material-supporting device and installed in floating The carborundum line positioner of dynamic material pressing device walks wire hole centering, and the wire hole of walking is by two identical positioning guide wheel shapes Into the central axis of this section of carborundum line after mounting is in workbench.
2. 2. a kind of manual carborundum line cutting machine as claimed in claim 1, it is characterised in that the godet roller mechanism is led There is bearing fit at the both ends of wheel, and the size of the diamond dust wire casing of guide wheel is equal with the diameter of carborundum line.
3. 3. a kind of manual carborundum line cutting machine as claimed in claim 1, it is characterised in that the table core has circle Hole, material-supporting device is fixed for installing lower part, during installation will and the floating material pressing device centering mounted in lathe bed top；For monitoring Small-sized image pickup head be installed on floating material pressing device lower part, see the cutting track line being previously set clearly during cutting and add Work workpiece.
4. 4. a kind of manual carborundum line cutting machine as claimed in claim 1, it is characterised in that on the top of fixed material-supporting device Vacuum slot is installed with floating material pressing device bottom, vacuum slot connection Pneumatic vacuum circuit, produced by cutting process Molecule and dust siphon away discharge.
5. 5. a kind of manual carborundum line cutting machine as claimed in claim 1, it is characterised in that the driving gear and work Gear is fixed on lathe bed by rolling bearing, and two identical working gears are to cross the horizontal plane of driving gear axle center line as base Standard is symmetrically installed.
6. A kind of 6. manual carborundum line cutting machine as claimed in claim 1, it is characterised in that the work of upper and lower slider waveguide rod Groove is separately mounted on two crank axles by rolling bearing so that the forward travel distance and instantaneous velocity of top shoe guide rod with The setback distance and instantaneous velocity of sliding block guide rod are equal, make carborundum line move in circles cutting workpiece when, active length Remain constant.
7. A kind of 7. manual carborundum line cutting machine as claimed in claim 1, it is characterised in that one end of the slider waveguide rod It is connected by dovetail guide groove with lathe bed, the other end of slider waveguide rod is connected by work nest and the rolling bearing on crank axle Connect.
8. 8. a kind of manual carborundum line cutting machine as claimed in claim 1, it is characterised in that the take-up and pay-off device includes Fixed line apparatus and actinobacillus device；

   The fixation line apparatus is by a hex bolts with locking device being installed on slider waveguide rod and one six Angle fillister head screw is formed, and the hex bolts with locking device is radially being provided with circular through hole, is having a diameter larger than carborundum line 0.1 ~ 0.5mm of diameter, and circular through hole to carry locking device hexagon screw head center between process the inside spiral shell of axis Pit, just screws in hexagon socket cap head screw, by carborundum line through circular through hole and with the interior hexagonal cylindrical head tightened Screw in compression, by rotating the hex bolts with locking device, is tensioned carborundum line, and make carborundum line during the work time Do not relatively move；

   The actinobacillus device is made of bolt, nut, packing ring, sleeve, and the bolt is consolidated through slider waveguide rod by nut It is fixed；Sleeve is housed on the screw rod of the bolt, packing ring is equipped between the face that sleeve is contacted with slider waveguide rod；From circular through hole The carborundum line being pierced by is wrapped on sleeve, is fixed on by bolt, nuts and washers on slider waveguide rod.
9. 9. a kind of manual carborundum line cutting machine as claimed in claim 8, it is characterised in that described with locking device The axis of bolt is vertical with the axis of slider waveguide rod in hex bolts and locking device；Specifically, led in the sliding block Bar is equipped with a groove, and the bottom of groove is equipped with a threaded hole for running through slider waveguide rod, the hexagonal spiral shell with locking device Bolt is fixed through the threaded hole by nut, and the nut is just arranged in the groove.