Numerical control machine tool with main shaft braking device

Abstract

The utility model discloses a numerical control machine tool with a main shaft braking device, which comprises a machine tool mechanism and a braking mechanism assembled in the machine tool mechanism, the machine tool mechanism comprises a machine tool base, and a machine tool main body is fixedly arranged on one side of the top of the machine tool base. The driving main shaft can be decelerated and braked when the machine tool stops, so that the chuck stops quickly, kinetic energy is stored when the driving main shaft is decelerated by the clockwork spring, loss of the kinetic energy is avoided, and auxiliary rotation can be performed on the driving main shaft when the machine tool starts through cooperation among the clockwork spring, the auxiliary wheel and the brake wheel, so that the driving main shaft is prevented from being damaged. In addition, the current when the driving motor is started is reduced, and the power consumption when the machine tool is frequently started is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field, concretely is a numerical control machine tool with main shaft brake device. BACKGROUND

[0002] Numerical control machine tool is a kind of automatic machine tool equipped with program control system, the control system can logically process the program with control code or other symbol instruction specification, and it is decoded, is expressed with coded number, is input numerical control device by information carrier, wherein the numerical control machine tool with main shaft brake device disclosed in the public number for:“CN213289523U”, it has solved the technical drawbacks of not having the quick braking of numerical control machine tool after shutdown, but there are still many defects in the actual use structure similar structure, for example, it does not have the function of recycling the residual kinetic energy of main shaft after machine tool shutdown, thereby leading to the loss and waste of kinetic energy, and it does not have the auxiliary rotation of main shaft when machine tool starts, in the starting stage, since motor has not completely rotated or speed is low, the process of electric energy conversion into kinetic energy becomes not so efficient, leading to the significant rise of current when starting, so that the power consumption of machine tool increases when starting, for this, we design a numerical control machine tool with main shaft brake device to solve the above problems. SUMMARY

[0003] In view of the defects of the prior art, the utility model provides a numerical control machine tool with main shaft brake device, solves the problems that kinetic energy is not recycled in the process of machine tool main shaft braking and the power consumption is large when machine tool restarts.

[0004] To achieve the above object, the utility model is realized by the following technical scheme: a numerical control machine tool with main shaft brake device, including machine tool mechanism and brake mechanism assembled in the inside of machine tool mechanism, the machine tool mechanism includes machine tool base, one side of the top of machine tool base is fixedly installed with machine tool body, one side of the inside of machine tool body is fixedly installed with driving motor, the output of driving motor is fixedly installed with driving main shaft, one end of driving main shaft penetrates machine tool body and is fixedly installed with chuck, the outer wall of driving main shaft is fixedly installed with brake wheel;

[0005] The brake mechanism comprises a clockwork disc and a mounting seat mounted in the machine tool body, the top of the mounting seat is movably connected with one side of the clockwork disc, the front side and the rear side of the top of the mounting seat are movably mounted with adjusting push rods, the output ends of the two groups of adjusting push rods are movably connected with the front side and the rear side of the bottom of the clockwork disc, a clockwork spring is fixedly installed in the clockwork disc, a transmission shaft used in cooperation with the clockwork spring is rotatably installed in the clockwork disc, a transmission disc is fixedly installed on the other side of the clockwork disc, a speed reducer is rotatably installed on the front side of the top of the transmission disc through an input arm, and an auxiliary wheel is rotatably installed on the rear side of the top of the transmission disc through an output arm, and the transmission shaft extends into the transmission disc and is in transmission connection with the speed reducer and the auxiliary wheel.

[0006] Preferably, a limiting disc is fixedly installed on one side of the transmission disc, a limiting wheel connected with the transmission shaft is arranged in the limiting disc, a limiting push rod is fixedly installed on the top of the limiting disc, and the output end of the limiting push rod extends into the limiting disc and is fixedly installed with a brake pad.

[0007] Preferably, a moving seat is fixedly installed on the other side of the top of the machine tool base, and a tool seat is fixedly installed on the top of the moving seat.

[0008] Preferably, an assembly hole is formed at the central position of the chuck, and three groups of clamping claws are equidistantly and slidably installed on the chuck.

[0009] Preferably, a protective cover is fixedly installed on the other side of the top of the machine tool base, and a sliding door is slidably installed on the front face of the protective cover.

[0010] Preferably, a plurality of threaded leg rods are threadedly installed on the bottom of the machine tool base, and a foot plate is rotatably installed on the bottom of each threaded leg rod.

[0011] The utility model provides a numerical control machine tool with main shaft brake device.

[0012] (1) the numerical control machine tool with main shaft brake device, can carry out deceleration brake processing to the driving main shaft when the machine tool stops through the cooperation between brake wheel, speed reducer and clockwork spring, makes the chuck stop fast, and the clockwork spring stores the kinetic energy when decelerating the driving main shaft, avoids the loss of kinetic energy.

[0013] (2) through the cooperation between clockwork spring, auxiliary wheel and brake wheel, the driving main shaft can be assisted to rotate when the machine tool starts, so that the driving main shaft quickly reaches the specified rotating speed, and the current when the driving motor starts is reduced, and the power consumption when the machine tool frequently starts is reduced. DRAWINGS

[0014] Figure 1The overall structure schematic view of the utility model.

[0015] Figure 2 The protective cover structure schematic view of the utility model.

[0016] Figure 3 The machine tool main body section structure schematic view of the utility model.

[0017] Figure 4 The spring disc structure schematic view of the utility model.

[0018] Figure 5 The spring disc internal structure schematic view of the utility model.

[0019] Figure 6 The limiting disc structure schematic view of the utility model.

[0020] Figure 7 The spring disc installation structure schematic view of the utility model.

[0021] Figure 8 The speed reduction brake structure schematic view of the utility model.

[0022] Figure 9 The auxiliary start schematic view of the utility model.

[0023] In the drawing: 1, machine tool mechanism;101, machine tool base;102, machine tool main body;103, moving seat;104, tool holder;105, chuck;106, driving motor;107, driving main shaft;108, brake wheel;2, brake mechanism;201, spring disc;202, mounting seat;203, adjusting push rod;204, spring;205, transmission shaft;3, transmission disc;301, input arm;302, speed reduction wheel;303, output arm;304, auxiliary wheel;4, limiting disc;401, limiting wheel;402, limiting push rod;403, brake pad;5, protective cover;501, sliding door;6, threaded leg rod;601, foot plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-9The utility model provides a technical scheme: a numerical control machine tool with main shaft brake device, including machine tool mechanism 1 and the brake mechanism 2 of assembling in machine tool mechanism 1 inside, machine tool mechanism 1 includes machine tool base 101, one side fixed mounting of machine tool base 101 top has machine tool main body 102, one side fixed mounting of machine tool main body 102 inside has drive motor 106, the output of drive motor 106 fixed mounting has drive spindle 107, and one end of drive spindle 107 penetrates machine tool main body 102 and is fixedly installed chuck 105, and the outer wall of drive spindle 107 is fixedly installed brake wheel 108. Brake mechanism 2 includes clockwork disc 201 and installs the mounting seat 202 in machine tool main body 102 inside, and the top of mounting seat 202 is movably connected with one side of clockwork disc 201, and the front side and rear side of the top of mounting seat 202 are movably installed with adjusting push rod 203, and the output of two groups of adjusting push rod 203 is movably connected with the front side and rear side of clockwork disc 201 bottom respectively, and the inside of clockwork disc 201 is fixedly installed with clockwork spring 204, and the inside of clockwork disc 201 is rotatably installed with transmission shaft 205 used in cooperation with clockwork spring 204, and the other side of clockwork disc 201 is fixedly installed with transmission disc 3, and the front side of transmission disc 3 top is rotatably installed with speed reducer 302 through input arm 301, and the rear side of transmission disc 3 top is rotatably installed with auxiliary wheel 304 through output arm 303, and transmission shaft 205 extends to the inside of transmission disc 3 and is transmissionally connected with speed reducer 302 and auxiliary wheel 304.

[0026] Based on the above-mentioned structural setting, the CNC machine tool with a spindle brake device is composed of a machine tool mechanism 1 and a brake mechanism 2, wherein the machine tool mechanism 1 is the main processing mechanism of the CNC machine tool, with the help of the machine tool mechanism 1, the workpiece can be processed, and the brake mechanism 2 is a quick stop mechanism when the machine tool is shut down. Specifically, during the working process, the machine tool base 101 can support the machine tool body 102, and the chuck 105 on one side of the machine tool body 102 can clamp and fix the workpiece, and the drive motor 106 drives the chuck 105 and the workpiece inside it to rotate by driving the spindle 107, so that the machine tool tool can process its workpiece. The clockwork disk 201 is mounted on the mounting seat. 202 is fixedly mounted inside the machine tool body 102, and the two sets of adjustment push rods 203 at the bottom of the mounting seat 202 can rotate the clockwise and counterclockwise small angles of the clockwork disk 201. A clockwork spring 204 is fixedly mounted inside the clockwork disk 201, and a transmission shaft 205 connected to the clockwork spring 204 is rotatably mounted at the central position inside the clockwork disk 201. One end of the transmission shaft 205 extends to the inside of the transmission disk 3. The transmission shaft 205 section inside the transmission disk 3 establishes transmission connections with the reduction wheel 302 above the input arm 301 and the auxiliary wheel 304 on the output arm 303 through a belt. When the machine tool is closed, the adjustment push rod on the front side of the top of the mounting seat 202 203 is extended, and the adjusting push rod 203 on the rear side is contracted, so that the clockwork disk 201 can be rotated clockwise at a small angle. When the clockwork disk 201 rotates at a small angle, the reduction wheel 302 on the input arm 301 directly conflicts with the brake wheel 108 on the drive spindle 107, and the brake wheel 108 tightens the clockwork spring 204 through the reduction wheel 302 and the transmission shaft 205. The tightening of the clockwork spring 204 and the reduction wheel 302 can slow down the drive spindle 107 when the machine tool stops, so that the chuck 105 and the workpiece fixed therein can be stopped quickly, and the clockwork spring 204 accumulates force and energy when tightened. When the machine tool is restarted, the mounting seat The adjusting push rod 203 on the rear side of the top 202 is extended, and the adjusting push rod 203 on the rear side is contracted, so that the clockwork disk 201 rotates counterclockwise at a small angle. When the clockwork disk 201 rotates counterclockwise at a small angle, the auxiliary wheel 304 installed on the output arm 303 contacts the back of the brake wheel 108. When the kinetic energy stored in the clockwork spring 204 is released, the transmission shaft 205 and the auxiliary wheel 304 can drive the brake wheel 108 and the drive spindle 107 to rotate at startup, which greatly reduces the current consumed by the drive motor 106 when driving the drive spindle 107 and the chuck 105 to rotate, reduces the power consumption when the CNC machine tool is frequently started, and saves the cost of using the CNC machine tool.

[0027] Further, one side of the transmission disc 3 is fixedly installed with a limiting disc 4, the inside of the limiting disc 4 is provided with a limiting wheel 401 connected with the transmission shaft 205, the top of the limiting disc 4 is fixedly installed with a limiting push rod 402, the output end of the limiting push rod 402 extends to the inside of the limiting disc 4 and is fixedly installed with a brake pad 403. Among them, the limiting wheel 401 is fixedly connected with the transmission shaft 205, when the limiting push rod 402 extends, the brake pad 403 can be lowered and abutted with the limiting wheel 401, so that the abutment of the brake pad 403 to the limiting wheel 401 can limit when the clock spring 204 is tightened and stored, which facilitates the subsequent rotation of the clock spring 204 when the driving spindle 107 is started, and avoids the situation that the clock spring 204 is released after the deceleration and storage is completed.

[0028] For the machine tool mechanism 1 in the embodiment, the other side of the top of the machine tool base 101 is fixedly installed with a moving seat 103, and the top of the moving seat 103 is fixedly installed with a tool seat 104. Among them, the tool seat 104 can install and fix the tool during workpiece machining, and through the moving seat 103, the tool seat 104 and the installed tool inside can move forward and backward and left and right.

[0029] And the central position of the chuck 105 is provided with an assembly hole, and three groups of clamping jaws are installed on the chuck 105 at equal intervals. Among them, the assembly hole increases the depth of the workpiece installed in the chuck 105, and the three groups of clamping jaws can clamp and fix the workpiece, ensuring the stability of the workpiece clamped in the chuck 105.

[0030] In addition, the other side of the top of the machine tool base 101 is fixedly installed with a protective cover 5, and the front of the protective cover 5 is slidably installed with a sliding door 501. Among them, the protective cover 5 can be closed and protected during machining of the machine tool, avoiding the situation that the debris during machining splashes on the body of the worker, causing injury, and avoiding the situation that external factors interfere with the machining of the machine tool, and the sliding door 501 facilitates the feeding and discharging operation of the worker on the machine tool.

[0031] The bottom of the machine tool base 101 is threadedly installed with a plurality of threaded leg rods 6, and the bottom of each threaded leg rod 6 is rotatably installed with a foot plate 601. Among them, the threaded leg rod 6 and the foot plate 601 can support the bottom during the operation of the machine tool, and the height of the foot plate 601 can be adjusted by rotating the threaded leg rod 6, and the stability of the machine tool placed on uneven ground is ensured by adjusting the height of the foot plate 601.

[0032] In the description of this utility model, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of this utility model, "plurality" means two or more, unless otherwise explicitly and specifically defined.

[0033] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. In addition, in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A numerically controlled machine tool having a spindle brake device, comprising a machine tool mechanism (1) and a brake mechanism (2) assembled inside the machine tool mechanism (1), characterized in that: The machine tool mechanism (1) comprises a machine tool base (101), one side of the top of the machine tool base (101) is fixedly installed with a machine tool body (102), one side of the inside of the machine tool body (102) is fixedly installed with a driving motor (106), the output end of the driving motor (106) is fixedly installed with a driving main shaft (107), one end of the driving main shaft (107) penetrates through the machine tool body (102) and is fixedly installed with a chuck (105), and the outer wall of the driving main shaft (107) is fixedly installed with a brake wheel (108). The brake mechanism (2) comprises a clockwork disc (201) and a mounting seat (202) mounted in the inside of the machine tool body (102), the top of the mounting seat (202) is movably connected with one side of the clockwork disc (201), the front side and the rear side of the top of the mounting seat (202) are movably installed with adjusting push rods (203), the output ends of the two groups of adjusting push rods (203) are movably connected with the front side and the rear side of the bottom of the clockwork disc (201), respectively, the inside of the clockwork disc (201) is fixedly installed with a clockwork spring (204), the inside of the clockwork disc (201) is rotatably installed with a transmission shaft (205) used in cooperation with the clockwork spring (204), the other side of the clockwork disc (201) is fixedly installed with a transmission disc (3), the front side of the top of the transmission disc (3) is rotatably installed with a speed reducer (302) through an input arm (301), the rear side of the top of the transmission disc (3) is rotatably installed with an auxiliary wheel (304) through an output arm (303), and the transmission shaft (205) extends to the inside of the transmission disc (3) and is in transmission connection with the speed reducer (302) and the auxiliary wheel (304).

2. A numerically controlled machine tool having a spindle brake device according to claim 1, characterized in that: One side of the transmission disc (3) is fixedly installed with a limiting disc (4), the inside of the limiting disc (4) is provided with a limiting wheel (401) connected with the transmission shaft (205), the top of the limiting disc (4) is fixedly installed with a limiting push rod (402), and the output end of the limiting push rod (402) extends to the inside of the limiting disc (4) and is fixedly installed with a brake pad (403).

3. A numerically controlled machine tool having a spindle brake device according to claim 1, characterized in that: The other side of the top of the machine tool base (101) is fixedly installed with a moving seat (103), and the top of the moving seat (103) is fixedly installed with a tool holder (104).

4. A numerically controlled machine tool having spindle braking means according to claim 1, characterized in that: A mounting hole is formed at the central position of the chuck (105), and three groups of clamping jaws are slidably installed on the chuck (105) at equal distances.

5. A numerically controlled machine tool having spindle braking means according to claim 1, characterized in that: The other side of the top of the machine tool base (101) is fixedly installed with a protective cover (5), and the front surface of the protective cover (5) is slidably installed with a sliding door (501).

6. A numerically controlled machine tool having spindle braking means according to claim 1, characterized in that: The bottom of the machine tool base (101) is threadedly installed with a plurality of threaded leg rods (6), and the bottom of each threaded leg rod (6) is rotatably installed with a foot plate (601).

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