A cutting device convenient for fixing for processing a rotating shaft

Abstract

The present invention discloses a cutting device which is easy to fix for processing a rotating shaft, comprising a table plate, on which a plurality of cylindrical oil cylinders are fixedly arranged in an annular array, wherein a fixing mechanism which can fix the rotating shaft to be cut with a stable and equal force is arranged inside the oil cylinder, wherein the fixing mechanism comprises an oil chamber arranged inside the oil cylinder, wherein the interior of the oil chamber is filled with hydraulic oil, and an extrusion rod which penetrates the outer wall of the oil chamber and extends into the interior of the oil chamber is arranged at the center of the oil cylinder, wherein the extrusion rod has a plurality of layers, and each layer of the extrusion rod comprises three extrusion rods in an annular array, which can conveniently and quickly realize the control of the pressure of the extrusion pad, and ensure the stability and uniformity of the extrusion force through the principle that the oil pressure at the same liquid level is equal everywhere, thereby realizing the precise fixation and vertical positioning of the rotating shaft, and the operation is very simple and convenient.

Description

Technical Field

[0001] The invention relates to the field of rotating shaft processing, and in particular to a cutting device which is easy to fix for rotating shaft processing. Background Art

[0002] A shaft, as the name suggests, is an axis that is necessary for connecting the main parts of a product and is used to withstand both bending moments and torques during rotation. Common shafts include: mobile phone shafts (flip or rotating screen phones); laptop shafts; portable DVD shafts; LED desk lamp shafts; LCD display shafts; GPS and other vehicle-mounted bracket shafts, etc.

[0003] The cutting devices currently used in the market for shaft processing are not convenient for limiting the shaft, which causes the shaft to deviate during the cutting process, resulting in unqualified product quality. In addition, the control of the shaft cutting length is not precise enough, and the adjustment of the cutting length is also very troublesome, requiring shutdown and recalibration. Moreover, it is impossible to cut at the same time and cut shafts of multiple length requirements at the same time, resulting in very low overall cutting efficiency. Summary of the invention

[0004] In order to overcome the defects in the above-mentioned prior art, the present invention provides a cutting device that is easy to fix for rotating shaft processing. By means of laser ranging, the thickness of the saw blade no longer affects the cutting accuracy of the rotating shaft. While improving the cutting accuracy of the rotating shaft, it also brings convenience to the replacement or thickness selection of the saw blade. The pressure of the extrusion pad can be easily and quickly controlled. The principle of equal oil pressure at the same liquid level can be used to ensure the stability and uniformity of the extrusion force, thereby realizing precise fixation and vertical positioning of the rotating shaft. The operation is very simple and convenient.

[0005] Technical Solution

[0006] A cutting device that is easy to fix for processing a rotating shaft, comprising a table, a plurality of cylindrical oil cylinders are fixedly arranged in an annular array on the table, a fixing mechanism that can fix the rotating shaft to be cut with a stable and equal force is arranged inside the oil cylinder, the fixing mechanism comprises an oil chamber arranged inside the oil cylinder, the interior of the oil chamber is filled with hydraulic oil, an extrusion rod that penetrates the outer wall of the oil chamber and extends into the interior of the oil chamber is arranged at the center of the oil cylinder, the extrusion rod has a plurality of layers, each layer of the extrusion rod comprises three extrusion rods in an annular array, and an extrusion pad is arranged at one end of the extrusion rod that is close to each other , an electromagnet fixed on the inner wall of the oil chamber and capable of adsorbing the extrusion rod is provided on the side of the extrusion rod away from each other, a first motor shaft is rotatably connected at the center of the table, two first connecting rods are fixedly connected to the first motor shaft, a cutting mechanism is fixedly connected to one end of the first connecting rod away from each other, and a plurality of laser emitting mechanisms in a circular array for accurately and quickly realizing the length measurement of the rotating shaft to be cut are also provided at the lower edge of the table, a second connecting rod is also fixedly connected to the lower end of the first motor shaft, and a cylindrical laser signal receiver is fixedly connected to the second connecting rod.

[0007] Furthermore, the cutting mechanism includes a first motor fixed to one end of the first connecting rod that is away from each other, and the lower end of the first motor is dynamically connected to a saw blade.

[0008] Furthermore, the laser emitting mechanism comprises a circular array of fixing rods fixedly arranged on the lower surface of the platform, and the lower ends of the fixing rods are fixedly connected with the laser emitters.

[0009] Furthermore, the number of the laser emitting mechanisms is the same as the number of the fixing mechanisms and corresponds one to one.

[0010] Furthermore, the laser line emitted by the laser transmitter can be closely attached to the lower surface of the saw blade and emitted to the laser signal receiver.

[0011] Furthermore, the upper end of the first motor shaft is dynamically connected to a second motor fixed on the table.

[0012] Beneficial Effects

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The saw blade is used for overall rotary cutting, which shortens the interval between single cutting operations and improves the overall cutting efficiency;

[0015] 2. The cutting length of the shaft to be cut can be adjusted directly by data input without stopping the machine, which greatly improves the cutting efficiency and can also cut shafts of different length requirements at the same time;

[0016] 3. The laser distance measurement method makes the thickness of the saw blade no longer affect the cutting accuracy of the shaft. While improving the cutting accuracy of the shaft, it also makes it convenient to replace the saw blade or select the thickness;

[0017] 4. It can conveniently and quickly realize the control of the pressure of the extrusion pad, and ensure the stability and consistency of the extrusion force through the principle that the oil pressure at the same liquid level is equal everywhere, so as to realize the precise fixation and vertical positioning of the rotating shaft, and the operation is very simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a cutting device that is easy to fix for processing a rotating shaft according to the present invention;

[0019] Figure 2 It is a transverse cross-sectional view of the fixing mechanism.

[0020] Reference Numbers

[0021] Fixing mechanism 900, cutting mechanism 901, laser emitting mechanism 902, second motor 1, laser signal receiver 22, first motor shaft 3, second connecting rod 4, saw blade 5, first motor 6, laser emitter 7, fixing rod 8, table plate 9, oil cylinder 10, rotating shaft to be cut 11, electromagnet 12, extrusion rod 13, extrusion pad 14, oil chamber 15, hydraulic oil 16, first connecting rod 17. DETAILED DESCRIPTION

[0022] In order to better illustrate the content of the present invention, the following is a detailed description with reference to the accompanying drawings and implementation examples:

[0023] have Figure 1-Figure 2As shown, the present invention discloses a cutting device for shaft processing that is easy to fix, comprising a table 9, on which a plurality of cylindrical oil cylinders 10 are fixedly arranged in an annular array, the interior of the oil cylinder 10 is provided with a fixing mechanism 900 capable of fixing a shaft 11 to be cut with a stable and equal force, the fixing mechanism 900 comprises an oil chamber 15 arranged inside the oil cylinder 10, the interior of the oil chamber 15 is filled with hydraulic oil 16, an extrusion rod 13 penetrating the outer wall of the oil chamber 15 and extending into the interior of the oil chamber 15 is arranged at the center of the oil cylinder 10, the extrusion rod 13 comprises a plurality of layers, each layer of the extrusion rod 13 comprises three annular arrays of the extrusion rods 13, and the extrusion rods 13 are close to each other. A squeezing pad 14 is provided at one end of the table 9, and an electromagnet 12 fixedly mounted on the inner wall of the oil chamber 15 and capable of adsorbing the squeezing rod 13 is provided on the side of the squeezing rod 13 that is away from each other. A first motor shaft 3 is rotatably connected at the center of the table 9, and two first connecting rods 17 are fixedly connected to the first motor shaft 3. A cutting mechanism 901 is fixedly connected to one end of the first connecting rod 17 that is away from each other. A plurality of laser emitting mechanisms 902 in a circular array for accurately and quickly measuring the length of the rotating shaft 11 to be cut are also provided at the lower edge of the table 9. A second connecting rod 4 is also fixedly connected to the lower end of the first motor shaft 3, and a cylindrical laser signal receiver 2 is fixedly connected to the second connecting rod 4.

[0024] Furthermore, the cutting mechanism 901 includes a first motor 6 fixed to one end of the first connecting rod 17 that is away from each other, and the lower end of the first motor 6 is dynamically connected to a saw blade 5 .

[0025] Furthermore, the laser emitting mechanism 902 includes a ring-shaped array of fixing rods 8 fixedly arranged on the lower surface of the platform 9 , and the lower ends of the fixing rods 8 are fixedly connected to the laser emitters 7 .

[0026] Furthermore, the number of the laser emitting mechanisms 902 is the same as the number of the fixing mechanisms 900 and corresponds one to one.

[0027] Furthermore, the laser line emitted by the laser emitter 7 can be closely attached to the lower surface of the saw blade 5 and emitted to the laser signal receiver 2 .

[0028] Furthermore, the upper end of the first motor shaft 3 is dynamically connected to the second motor 1 fixed on the platform 9 .

[0029] Specifically, when the rotating shaft needs to be cut, the rotating shaft 11 to be cut is fed downward at a uniform speed;

[0030] At the same time, the laser transmitter 7 starts and emits the laser to the laser signal receiver 22. When the rotating shaft 11 to be cut moves down and blocks the laser, the laser signal receiver 22 receives no signal and starts timing. At the same time, the downward moving length of the rotating shaft 11 to be cut is calculated by the displacement X=vt until the length reaches the required length of the rotating shaft, that is, at the speed v, after the time t, the rotating shaft 11 to be cut stops feeding, thereby realizing the precise cutting length control of the rotating shaft 11 to be cut;

[0031] After the feeding stops, the oil chamber 15 begins to increase pressure, and then the extrusion rod 13 will be pressed out and pressed and fixed by the extrusion pad 14 to be cut. At the same time, the multi-layer extrusion rod 13 will effectively fix the shaft 11 to be cut;

[0032] And because the hydraulic pressure at the same liquid level is equal everywhere, the pressure of the extrusion rod 13 and the extrusion pad 14 at the same layer on the shaft 11 to be cut is also exactly the same, so as to keep the shaft 11 to be cut in an accurate vertical state, and the shaft 11 to be cut will not be skewed due to uneven extrusion pressure, which will affect the cutting accuracy. Moreover, even if the actual extrusion pressure of the extrusion rod 13 at different liquid level depths is different, the extrusion pressure on the plane at different levels can still be balanced, and the vertical cutting method also avoids the influence of its own gravity.

[0033] Moreover, the control is performed through the same oil chamber 15, and the actual operation is very convenient. The precise fixing of the cutting shaft 11 can be achieved accurately and quickly through unified pressurization and decompression.

[0034] When it is necessary to move and feed again, the oil pressure is reduced and the electromagnet 12 is energized, and then the electromagnet 12 will absorb the squeezing rod 13 to prevent the squeezing rod 13 from affecting the feeding operation of the rotating shaft 11 to be cut;

[0035] After the fixing is completed, the second motor 1 is started, and the first motor 6 is still started, so that the first motor shaft 3 rotates and drives the saw blade 5 to rotate around the first motor shaft 3, and the first motor 6 drives the saw blade 5 to rotate, thereby achieving cutting of the rotating shaft 11 to be cut;

[0036] At the same time, after the shaft 11 to be cut is cut and falls, the saw blade 5 will continue to perform the two rotation modes and cut the next shaft 11 to be cut, and the feeding and fixing operations of the shaft can continue just after the cutting is completed;

[0037] Realize continuous cutting operation without intervals and improve cutting efficiency;

[0038] In addition, it is also possible to simultaneously cut shafts of different lengths, simply by adjusting the uniform feed speed of the shaft to be cut;

[0039] At the same time, the laser scanning distance measurement method completely avoids the influence of the thickness of the saw blade 5, and no adjustment is required when replacing or using a saw blade 5 of different thickness;

[0040] Moreover, the cutting length of the rotating shaft can be adjusted at any time. Similarly, it is only necessary to change the uniform feeding speed of the rotating shaft 11 to be cut, without stopping the machine for adjustment, thereby greatly improving the cutting efficiency.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the technical solutions of the present invention have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cutting device that is easy to fix for shaft processing, characterized in that: The invention comprises a table (9), on which a plurality of cylindrical oil cylinders (10) are fixedly arranged in an annular array, a fixing mechanism (900) capable of fixing a rotating shaft (11) to be cut with a stable and uniform force is arranged inside the oil cylinder (10), the fixing mechanism (900) comprises an oil chamber (15) arranged inside the oil cylinder (10), the oil chamber (15) is filled with hydraulic oil (16), an extrusion rod (13) penetrating the outer wall of the oil chamber (15) and extending into the oil chamber (15) is arranged at the center of the oil cylinder (10), the extrusion rod (13) comprises a plurality of layers, each layer of the extrusion rod (13) comprises three extrusion rods (13) in an annular array, and an extrusion pad (14) is arranged at one end of the extrusion rod (13) close to each other. ), an electromagnet (12) fixedly mounted on the inner wall of the oil chamber (15) and capable of adsorbing the extrusion rod (13) is provided on the side of the extrusion rod (13) away from each other, the center of the table (9) is rotatably connected to a first motor shaft (3), two first connecting rods (17) are fixedly connected to the first motor shaft (3), one end of the first connecting rod (17) away from each other is fixedly connected to a cutting mechanism (901), a plurality of laser emitting mechanisms (902) in a circular array for accurately and quickly measuring the length of the rotating shaft (11) to be cut are also provided at the lower edge of the table (9), a second connecting rod (4) is also fixedly connected to the lower end of the first motor shaft (3), a cylindrical laser signal receiver (2) is fixedly connected to the second connecting rod (4).

2. A cutting device for shaft processing that is easy to fix according to claim 1, characterized in that: The cutting mechanism (901) comprises a first motor (6) fixedly mounted on one end of the first connecting rod (17) which is away from each other, and the lower end of the first motor (6) is dynamically connected to a saw blade (5).

3. A cutting device for shaft processing that is easy to fix according to claim 2, characterized in that: The laser emitting mechanism (902) comprises a circular array of fixing rods (8) fixedly arranged on the lower surface of the platform (9), and the lower ends of the fixing rods (8) are fixedly connected to the laser emitters (7).

4. A cutting device for machining a rotating shaft that is easy to fix according to claim 3, characterized in that: The number of the laser emitting mechanisms (902) is the same as the number of the fixing mechanisms (900) and corresponds one to one.

5. A cutting device for machining a rotating shaft that is easy to fix according to claim 4, characterized in that: The laser line emitted by the laser emitter (7) can be closely attached to the lower surface of the saw blade (5) and emitted to the laser signal receiver (2).

6. A cutting device for machining a rotating shaft that is easy to fix according to claim 5, characterized in that: The upper end of the first motor shaft (3) is dynamically connected to a second motor (1) fixedly mounted on the platform (9).

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