CN216732026U - Double-arm type straight lifting miter saw - Google Patents

Abstract

The utility model relates to a double-arm type straight lifting miter cutter which comprises a straight lifting double-arm mechanism, wherein the straight lifting double-arm mechanism comprises an upper arm, a lower arm, an upper chain wheel, a lower chain wheel, a rotating motor and a chain, the lower chain wheel is fixedly arranged at the lower end of a bracket at one side of a workbench through a lower fixed shaft, the lower chain wheel is positioned at the lower end of the inner part of the lower arm, an upper chain wheel is positioned at the upper end of the inner part of the lower arm, the upper chain wheel is rotatably arranged at the upper end of the lower arm through an upper rotating shaft, two ends of the upper rotating shaft penetrate through the lower arm, the lower end of the lower arm is rotatably arranged at the outer side of the lower fixed shaft, the rotating motor is arranged at the outer side of the upper end of the lower arm, a rotating shaft of the rotating motor is connected with one end of the upper rotating shaft, and the chain is wound on the outer sides of the lower chain wheel and the upper chain wheel. The advantage is rotatory through a drive motor control sprocket and chain, and lower sprocket design irrotational to the rotatory lift of synchronous control upper arm and underarm realizes installing the lift of the bevel gear above.

Description

Double-arm type straight lifting miter saw

Technical Field

The utility model relates to the field of sponge beveling machinery, in particular to a double-arm type beveling machine capable of linearly lifting.

Background

When the inclined cutting mechanism is used for cutting the sponge block, the cutting height and angle are adjusted according to actual requirements, so that the cutting requirements of the sponge block can be met; the altitude mixture control of present sponge beveller adopts two support arm lifts and falls to satisfy, goes up and down through two cylinders or hydro-cylinder control lift, and the rotation angle of support arm passes through angle encoder control simultaneously, and to realize that beveller goes up and down, it is more to need the moving part, and the lifting accuracy requires than higher in addition, needs the accurate debugging of calculating, and is more loaded down with trivial details, for example patent number: CN202010321588.6, a sponge miter saw, has the above problems, and the production requirement of the device is higher.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides the double-arm type straight lifting miter saw which is simple, reasonable and ingenious in design structure and convenient to produce and use.

The technical scheme of the utility model is as follows:

a double-arm type straight lifting miter saw comprises a workbench, a straight lifting double-arm mechanism and a beveling mechanism, wherein the straight lifting double-arm mechanism is installed on one side of the workbench, the beveling mechanism is installed at the upper end of the straight lifting double-arm mechanism, the straight lifting double-arm mechanism comprises an upper arm, a lower arm, an upper chain wheel, a lower chain wheel, a rotating motor, a chain and a counterweight part, the lower chain wheel is fixedly installed at the lower end of a side support of the workbench through a lower fixed shaft, the lower chain wheel is located at the lower end of the lower arm, the upper chain wheel is located at the upper end of the lower arm, the upper chain wheel is rotatably installed at the upper end of the lower arm through an upper rotating shaft, the two ends of the upper rotating shaft penetrate through the lower arm, the lower end of the lower arm is rotatably installed at the outer side of the lower fixed shaft, the rotating motor is installed at the outer side of the upper end of the lower arm, one end of the upper rotating shaft is fixedly connected at the lower end of the upper arm, the beveling mechanism is rotatably installed at the upper end of the upper arm, chains are wound on the outer sides of the lower chain wheel and the upper chain wheel.

The diameter ratio of the upper chain wheel to the lower chain wheel is 1: 2.

the upper arm and the lower arm are the same in length.

The outer side of the lower end of the lower arm is downward provided with an extension plate, the lower end of the extension plate is connected with the lower end of the counterweight part, and the upper end of the counterweight part is connected below the workbench.

The counterweight part comprises an upper sleeve, a lower sleeve and a spring, the lower end of the upper sleeve is sleeved outside the upper end of the lower sleeve, the spring is positioned inside the upper sleeve and the lower sleeve, the upper end of the upper sleeve is rotatably installed below the workbench, the lower end of the lower sleeve is rotatably connected with the lower end of the extension plate, the upper end of the spring is propped against the inner upper end of the upper sleeve, and the lower end of the spring is propped against the inner lower end of the lower sleeve.

The rotating motor is designed as a servo motor.

The underarm include two curb plates and encircle the annular plate at two curb plate peripheries, the inside vacuole formation of two curb plates and annular plate, two curb plates of the lower extreme position of underarm are respectively through the rotatory installation of lower bearing on the dead axle down, two curb plates of the upper end position of underarm are respectively through the rotatory installation of upper bearing on the last pivot, last sprocket fixed mounting just be located between two upper bearings on the last pivot, lower sprocket fixed mounting just be located between the lower bearing on the dead axle down, go up the sprocket and be located the cavity upper portion of underarm, the lower sprocket is located the cavity lower part of underarm.

The length of the upper arm refers to the distance from the lower rotating center of the lower end of the upper arm to the upper rotating center of the upper end of the upper arm, and the length of the lower arm refers to the distance from the lower rotating center of the lower end of the lower arm to the upper rotating center of the upper end of the lower arm.

The utility model has the advantages that the upper chain wheel and the chain are controlled to rotate by one driving motor, and the lower chain wheel is designed to be not rotated, so that the upper arm and the lower arm are synchronously controlled to rotate and lift, the lifting of the bevel mechanism arranged on the upper arm is realized, the structure is compact and ingenious, and the design, production and debugging are convenient; the upper arm and the lower arm are designed to have the same length, and the diameter ratio of the upper chain wheel to the lower chain wheel is 1: 2, the straight ascending and descending of the beveling mechanism can be realized, the inclined motion is avoided, the action precision is high, and the use requirement of the beveling mechanism is met.

Drawings

FIG. 1 is a first schematic diagram of the present invention.

FIG. 2 is a second schematic of the present invention.

FIG. 3 is a schematic view, partially in section, at the lower sprocket of the present invention.

Fig. 4 is a partial cross-sectional view of the upper sprocket of the present invention.

Fig. 5 is a partial cross-sectional view of the present invention at the lower arm.

Fig. 6 is a sectional view of the weight of the present invention.

Detailed Description

Referring to fig. 1-6, a double-arm type straight lifting miter saw comprises a workbench 1, a straight lifting double-arm mechanism and a miter mechanism 2, wherein the straight lifting double-arm mechanism is arranged on one side of the workbench 1, the miter mechanism 2 is arranged on the upper end of the straight lifting double-arm mechanism, the straight lifting double-arm mechanism comprises an upper arm 3, a lower arm 4, an upper chain wheel 5, a lower chain wheel 6, a rotating motor 7, a chain 8 and a counterweight part 9, the lower chain wheel 6 is fixedly arranged on a side support 11 of the workbench 1 near the lower end through a lower fixed shaft 10, the lower chain wheel 6 is arranged on the lower end of the inner part of the lower arm 4, the upper chain wheel 5 is arranged on the upper end of the inner part of the lower arm 4, the upper chain wheel 5 is rotatably arranged on the upper end of the lower arm 4 through an upper rotating shaft 12, two ends of the upper rotating shaft 12 penetrate through the lower arm 4, the lower end of the lower arm 4 is rotatably arranged outside the lower fixed shaft 10, the upper end of the lower arm 4 is provided with the rotating motor 7, a rotating shaft of the rotating motor 7 is connected with one end of an upper rotating shaft 12, the other end of the upper rotating shaft 12 is fixedly connected with the lower end of an upper arm 3, the upper end of the upper arm 3 is rotatably provided with a bevel cutting mechanism 2, and the outer sides of a lower chain wheel 6 and an upper chain wheel 5 are wound with chains 8; an extension plate 13 is further arranged on the outer side of the lower end of the lower arm 4 downwards, the lower end of the extension plate 13 is connected with the lower end of the counterweight part 9, and the upper end of the counterweight part 9 is connected below the workbench 1. Workstation horizontal installation is subaerial, workstation lower extreme one side fixed mounting has support 11, support perpendicular to workstation, the one end of dead axle is fixed at the support and is close to the lower extreme position down, be not rotatory installation between dead axle and the support down, the lower sprocket is also the other end of fixed mounting at the dead axle down, the lower sprocket is equivalent to the support also irrotational, the lower sprocket is the irrotational action during work, the chain is round the rotatory action of lower sprocket under last sprocket drive, thereby it is rotatory round the dead axle down to drive the underarm. The bottom plate can be designed at the lower end of the support, the bottom plate is horizontally arranged on the ground, the lower end of the support is fixed on the bottom plate, and the support is reinforced and fixed according to actual requirements through the design of the bottom plate.

The diameter ratio of the upper chain wheel 5 to the lower chain wheel 6 is 1: 2. the upper arm 3 and the lower arm 4 are the same length. The length of the upper arm 3 is the distance from the lower rotation center of the lower end of the upper arm 3 to the upper rotation center of the upper end of the upper arm 3, and the length of the lower arm 4 is the distance from the lower rotation center of the lower end of the lower arm 4 to the upper rotation center of the upper end of the lower arm 4. This design guarantees that upper arm and underarm form an isosceles triangle, and it is 2R to go up the sprocket and control upper arm rotation angle under the rotating electrical machines drive, because the diameter ratio of going up sprocket 5 and lower sprocket 6 is 1: 2, the underarm is then at the chain round lower sprocket rotation turned angle R, then the diagonal cutting mechanism is rectilinear rising or descends for lower dead axle, this design simple structure is ingenious, and the effect is outstanding moreover, guarantees that the regulation precision is high, the debugging installation of being convenient for.

The counterweight part 9 comprises an upper sleeve 91, a lower sleeve 92 and a spring 93, the lower end of the upper sleeve 91 is sleeved outside the upper end of the lower sleeve 92, the spring 93 is positioned inside the upper sleeve 91 and the lower sleeve 92, the upper end of the upper sleeve 91 is rotatably installed below the workbench 1, the lower end of the lower sleeve 92 is rotatably connected with the lower end of the extension plate 13, the upper end of the spring 93 abuts against the upper end inside the upper sleeve 91, and the lower end of the spring 93 abuts against the lower end inside the lower sleeve 92. The counterweight part is designed to prevent the rotating motor from driving overload, the upper sleeve and the lower sleeve can move in a relatively telescopic way, and the compression spring force set by the spring is used for balancing most of the weight of the linear lifting double-arm mechanism and the bevel mechanism.

The rotary electric machine 7 is designed as a servomotor.

The lower arm 4 comprises two side plates 41 and an annular plate 42 surrounding the peripheries of the two side plates 41, a cavity 43 is formed inside the two side plates 41 and the annular plate 42, the two side plates 41 at the lower end position of the lower arm 4 are respectively and rotatably mounted on the lower fixed shaft 10 through lower bearings 44, the two side plates 41 at the upper end position of the lower arm 4 are respectively and rotatably mounted on the upper rotating shaft 12 through upper bearings 45, the upper chain wheel 5 is fixedly mounted on the upper rotating shaft 12 and located between the two upper bearings 45, the lower chain wheel 6 is fixedly mounted on the lower fixed shaft 10 and located between the lower bearings 44, the upper chain wheel 5 is located on the upper portion of the cavity 43 of the lower arm 4, and the lower chain wheel 6 is located on the lower portion of the cavity 43 of the lower arm 4. The lower fixed shaft is fixed on the bracket through the expansion sleeve, and the lower chain wheel is fixed on the lower fixed shaft through the expansion sleeve.

When the upper arm oblique cutting mechanism is used, the rotating motor drives the upper rotating shaft to rotate, the upper rotating shaft drives the upper chain wheel to rotate and the upper arm to rotate, the upper chain wheel simultaneously drives the chain to rotate, and the chain rotates around the non-rotating lower chain wheel, so that the lower arm rotates around the lower fixed shaft, and finally the oblique cutting mechanism mounted at the upper end of the upper arm is lifted; for accurate control miter cut mechanism straight line lift, design the diameter ratio of upper sprocket and lower sprocket into 1: and 2, the lengths of the upper arm and the lower arm are the same, so that the upper arm and the lower arm form an isosceles triangle, the rotation angle of the lower arm relative to the horizontal ground is R, and the synchronous rotation angle of the upper arm relative to the lower arm is 2R, so that the beveling structure is ensured to vertically ascend or descend relative to the ground or a workbench, the motion is realized by one driving motor through the design of a chain wheel and a chain, the cutting angle can be adjusted through the self-transmission of the beveling mechanism, and the utility model is the prior art and is not described. The counterweight part is designed to balance the weight of the linear lifting double-arm mechanism and the inclined cutting mechanism, and the lower dead axle is used as the axle center for balancing, so that the rotating action of the rotating motor can not be overloaded.

Claims (8)

1. A double-arm type straight lifting beveller comprises a workbench, a straight lifting double-arm mechanism and a beveling mechanism, wherein the straight lifting double-arm mechanism is arranged on one side of the workbench, the beveling mechanism is arranged at the upper end of the straight lifting double-arm mechanism, and the beveling mechanism is characterized in that the straight lifting double-arm mechanism comprises an upper arm, a lower arm, an upper chain wheel, a lower chain wheel, a rotating motor and a chain, the lower chain wheel is fixedly arranged at the lower end of a side support of the workbench through a lower fixed shaft, the lower chain wheel is positioned at the lower end of the lower arm, the upper chain wheel is positioned at the upper end of the lower arm, the upper chain wheel is rotatably arranged at the upper end of the lower arm through an upper rotating shaft, two ends of the upper rotating shaft penetrate through the lower arm, the lower end of the lower arm is rotatably arranged at the outer side of the lower fixed shaft, the rotating motor is arranged at the outer side of the upper end of the lower arm, one end of the upper rotating shaft is fixedly connected at the lower end of the upper arm, the beveling mechanism is rotatably arranged at the upper end of the upper arm, chains are wound on the outer sides of the lower chain wheel and the upper chain wheel.

2. The dual arm linear up-down miter saw of claim 1, wherein the diameter ratio of said upper and lower sprockets is 1: 2.

3. the dual arm linearly raising and lowering miter saw of claim 1, wherein said upper and lower arms are of the same length.

4. The dual-arm type straight elevating miter saw of claim 1, wherein an extension plate is further formed downward from the lower end of the lower arm, the lower end of the extension plate is connected to the lower end of the weight, and the upper end of the weight is connected to the lower surface of the table.

5. The dual arm miter saw of claim 4, wherein the weight member comprises an upper sleeve, a lower sleeve, and a spring, the lower end of the upper sleeve is disposed outside the upper end of the lower sleeve, the spring is disposed inside the upper sleeve and the lower sleeve, the upper end of the upper sleeve is rotatably mounted below the table, the lower end of the lower sleeve is rotatably connected to the lower end of the extension plate, the upper end of the spring abuts against the upper end of the inner portion of the upper sleeve, and the lower end of the spring abuts against the lower end of the inner portion of the lower sleeve.

6. A dual arm linearly raising and lowering miter saw as in claim 1, wherein said rotary motor is configured as a servo motor.

7. The dual-arm type miter saw of claim 1, wherein the lower arm includes two side plates and an annular plate surrounding the two side plates, the two side plates and the annular plate forming a cavity therein, the two side plates at the lower end of the lower arm are rotatably mounted on the lower fixed shaft through lower bearings, the two side plates at the upper end of the lower arm are rotatably mounted on the upper rotating shaft through upper bearings, the upper sprocket is fixedly mounted on the upper rotating shaft and between the two upper bearings, the lower sprocket is fixedly mounted on the lower fixed shaft and between the lower bearings, the upper sprocket is located at the upper portion of the cavity of the lower arm, and the lower sprocket is located at the lower portion of the cavity of the lower arm.

8. The dual arm linearly raising and lowering miter saw of claim 3, wherein the length of the upper arm is a distance from a lower center of rotation of a lower end of the upper arm to an upper center of rotation of an upper end of the upper arm, and the length of the lower arm is a distance from a lower center of rotation of a lower end of the lower arm to an upper center of rotation of an upper end of the lower arm.

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