阅读说明：本技术 一种基于机电技术的数控机床驱动轴辅助限速保护装置 (Auxiliary speed-limiting protection device for numerically-controlled machine tool driving shaft based on electromechanical technology ) 是由 宁琴 于 2021-08-16 设计创作，主要内容包括：本发明涉及机电机械技术领域,且公开了一种基于机电技术的数控机床驱动轴辅助限速保护装置,包括转盘,所述转盘的表面设置有转轴,所述转盘的表面设置有支板,所述转盘的表面转动连接有转环,所述转盘的内部设置有底座,所述转盘的内部设置有调控组件,所述转盘的表面设置有限速组件,所述调控组件包括配重块,所述配重块的表面设置有推柱。该基于机电技术的数控机床驱动轴辅助限速保护装置,通过齿杆与棘轮的配合使用,驱动弹件与限速组件的配合使用,推板与限速板的配合使用,限速板之间的相互配合,可对转轴的转速进行限速保护,转轴的限度效果好,可有效提高数控机床运作的安全性,同时提高工件表面加工的质量。(The invention relates to the technical field of electromechanical machinery, and discloses an electromechanical technology-based auxiliary speed-limiting protection device for a driving shaft of a numerical control machine tool. This supplementary speed limit protection device of digit control machine tool drive shaft based on electromechanical technology uses through the cooperation of ratch and ratchet, and the cooperation of drive bullet spare and speed limit subassembly is used, and the cooperation of push pedal and speed limit board is used, and the mutually supporting between the speed limit board can carry out the speed limit protection to the rotational speed of pivot, and the limit of pivot is effectual, can effectively improve the security of digit control machine tool function, improves the quality of work piece surface machining simultaneously.)

1. The utility model provides a supplementary speed limit protection device of digit control machine tool drive shaft based on electromechanical technology, includes carousel (1), its characterized in that: the surface of carousel (1) is provided with pivot (2), the surface of carousel (1) is provided with extension board (3), the surface of carousel (1) rotates and is connected with swivel (4), the inside of carousel (1) is provided with base (5), the inside of carousel (1) is provided with regulation and control subassembly (6), the surface of carousel (1) is provided with speed limit subassembly (7).

2. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology is characterized in that: even notch has been seted up to the inside of carousel (1), and extension board (3) adopt the design of ring shape board, are located the surface of pivot (2), and base (5) are located the inside of carousel (1), and are corresponding with the inside notch of carousel (1).

3. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology is characterized in that: regulation and control subassembly (6) include balancing weight (61), the surface of balancing weight (61) is provided with push column (62), the inside of regulation and control subassembly (6) is provided with ratch (63), the lower surface of ratch (63) is provided with disc (64), the side surface of disc (64) is provided with push rod (65).

4. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology is characterized in that: the inside design of regulation and control subassembly (6) has the extension spring, and evenly distributed is in the side surface of base (5), and the one end that the base (5) was kept away from to the extension spring is connected with the side surface of balancing weight (61).

5. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology is characterized in that: balancing weight (61) evenly distributed in the inside notch of carousel (1), be sliding connection between with carousel (1), ratch (63) evenly distributed is on the upper surface of carousel (1), and the design has the axis of rotation spare between carousel (1).

6. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology is characterized in that: the disc (64) is positioned in the turntable (1), the disc and the corresponding toothed bar (63) are coaxially designed, and the push rod (65) corresponds to the push column (62).

7. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology is characterized in that: the speed limiting assembly (7) comprises a driving elastic piece (71), a rotating rod (72) is arranged inside the speed limiting assembly (7), a ratchet wheel (73) is arranged on the lower surface of the rotating rod (72), a push plate (74) is arranged on the surface of the speed limiting assembly (7), a buffer rod (75) is arranged on the surface of one side, away from the speed limiting assembly (7), of the push plate (74), and a speed limiting plate (76) is arranged at one end, away from the push plate (74), of the buffer rod (75).

8. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology as claimed in claim 7, wherein: the speed limiting assembly (7) is internally provided with driving rods which are uniformly distributed on the side surface of the support plate (3), the driving elastic piece (71) corresponds to the driving rods in the speed limiting assembly (7), a rotating shaft piece is arranged between the rotating rod (72) and the surface of the turntable (1), and the rotating shaft piece is in sliding connection with the driving rods in the speed limiting assembly (7).

9. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology as claimed in claim 7, wherein: one end of the rotating rod (72), which is far away from the driving rod in the speed limiting assembly (7), is in sliding connection with the surface of the rotating ring (4), and the ratchet wheel (73) and the rotating rod (72) adopt a coaxial design and are matched with the surface of the toothed rod (63).

10. The auxiliary speed limiting protection device for the numerically-controlled machine tool driving shaft based on the electromechanical technology as claimed in claim 7, wherein: the buffer rods (75) are uniformly distributed between the push plate (74) and the speed limiting plate (76), and the speed limiting plate (76) is designed to be an arc-shaped plate and corresponds to the surface of the rotating shaft (2).

Technical Field

The invention relates to the technical field of electromechanical machinery, in particular to an auxiliary speed-limiting protection device for a driving shaft of a numerical control machine tool based on electromechanical technology.

Background

Electromechanical machines are a combination of mechanical technology and electronic technology, and with the continuous development of electromechanical technology, more and more mechanical devices based on electromechanical technology are widely used in industrial production, and numerical control machine tools are one of the mechanical devices. When using digit control machine tool to add man-hour to the work piece, need press from both sides tight fixed to the work piece, then utilize drive device to drive the work piece and rotate fast, can process the surface of work piece, but when the rotational speed of work piece was too high, can cause certain burden to the fixing device of work piece, can reduce the effect of pressing from both sides tight fixed to the work piece, the work piece has the risk of being thrown away, the centrifugal force of work piece can increase simultaneously, eccentric pivoted phenomenon can appear in the one end that fixing device was kept away from to the work piece, can influence the quality of work piece surface machining.

In order to solve the problems, the auxiliary speed-limiting protection device for the driving shaft of the numerical control machine tool based on the electromechanical technology has the advantages that the physical speed-limiting operation can be carried out on the driving shaft piece of the numerical control machine tool, the speed-limiting triggering performance of the driving shaft piece of the numerical control machine tool is good, the speed-limiting effect is good, the rotating processing effect of a workpiece is good, the operation safety of the numerical control machine tool can be effectively improved, and meanwhile the surface processing quality of the workpiece is improved.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an auxiliary speed-limiting protection device for a numerically-controlled machine tool driving shaft based on an electromechanical technology, which has the advantages of capability of carrying out physical speed-limiting operation on the driving shaft part of the numerically-controlled machine tool, good speed-limiting triggering performance and speed-limiting effect of the driving shaft part of the numerically-controlled machine tool and good rotating processing effect of a workpiece, and solves the problems that when the rotating speed of the driving shaft part of the existing numerically-controlled machine tool is too high, the workpiece is thrown out, meanwhile, the workpiece can eccentrically rotate, and the processing quality of the surface of the workpiece is not high.

(II) technical scheme

In order to realize the purposes that the physical speed-limiting operation can be carried out on the driving shaft part of the numerical control machine tool, the speed-limiting triggering performance of the driving shaft part of the numerical control machine tool is good, the speed-limiting effect is good, and the rotating processing effect of a workpiece is good, the invention provides the following technical scheme: the utility model provides a supplementary speed limit protection device of digit control machine tool drive shaft based on electromechanical technology, includes the carousel, the surface of carousel is provided with the pivot, the surface of carousel is provided with the extension board, the surface of carousel rotates and is connected with the change, the inside of carousel is provided with the base, the inside of carousel is provided with the regulation and control subassembly, the surface of carousel is provided with the speed limit subassembly.

Preferably, even notch is seted up in the inside of carousel, and the extension board adopts the design of ring shape board, is located the surface of pivot, and the base is located the inside of carousel, and is corresponding with the inside notch of carousel.

The regulation and control subassembly includes the balancing weight, the surface of balancing weight is provided with pushes away the post, the inside of regulation and control subassembly is provided with the ratch, the lower surface of ratch is provided with the disc, the side surface of disc is provided with the push rod.

Preferably, the internal design of regulation and control subassembly has the extension spring, and evenly distributed is at the side surface of base, and the one end that the base was kept away from to the extension spring is connected with the side surface of balancing weight.

Preferably, the balancing weight is evenly distributed in the notch inside the turntable and is in sliding connection with the turntable, the toothed bars are evenly distributed on the upper surface of the turntable, and a rotating shaft is arranged between the toothed bars and the turntable.

Preferably, the disc is positioned in the turntable, the disc and the corresponding toothed bar are coaxially designed, and the push rod corresponds to the push column.

The speed limiting assembly comprises a driving elastic piece, a rotating rod is arranged inside the speed limiting assembly, a ratchet wheel is arranged on the lower surface of the rotating rod, a push plate is arranged on the surface of the speed limiting assembly, a buffer rod is arranged on the surface of one side, far away from the speed limiting assembly, of the push plate, and a speed limiting plate is arranged at one end, far away from the push plate, of the buffer rod.

Preferably, the speed-limiting assembly is internally provided with driving rods which are uniformly distributed on the side surfaces of the supporting plates, the driving elastic pieces correspond to the driving rods in the speed-limiting assembly, and a rotating shaft piece is arranged between the rotating rod and the surface of the rotating disc and is in sliding connection with the driving rods in the speed-limiting assembly.

Preferably, one end of the rotating rod, which is far away from the driving rod in the speed limiting assembly, is in sliding connection with the surface of the rotating ring, and the ratchet wheel and the rotating rod are coaxially designed and are matched with the surface of the toothed rod.

Preferably, the buffer rods are uniformly distributed between the push plate and the speed limiting plate, and the speed limiting plate is designed to be an arc-shaped plate and corresponds to the surface of the rotating shaft.

(III) advantageous effects

Compared with the prior art, the invention provides an auxiliary speed-limiting protection device for a drive shaft of a numerical control machine tool based on an electromechanical technology, which has the following beneficial effects:

1. this speed limit protection device is assisted to digit control machine tool drive shaft based on electromechanical technology uses through the cooperation of carousel with the regulation and control subassembly, and the cooperation of regulation and control subassembly and balancing weight is used, and the cooperation of pushing away post and push rod is used, and the cooperation of disc and ratch is used, can regard as the trigger mechanism of pivot speed limit restriction, and it is high to trigger the precision, can effectively improve the restriction effect of pivot speed, is favorable to processing the protection to the work piece.

2. This supplementary speed limit protection device of digit control machine tool drive shaft based on electromechanical technology uses through the cooperation of ratch and ratchet, and the cooperation of drive bullet spare and speed limit subassembly is used, and the cooperation of push pedal and speed limit board is used, and the mutually supporting between the speed limit board can carry out the speed limit protection to the rotational speed of pivot, and the limit of pivot is effectual, can effectively improve the security of digit control machine tool function, improves the quality of work piece surface machining simultaneously.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a first schematic diagram illustrating a top view structure of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3 according to the present invention.

In the figure: 1. a turntable; 2. a rotating shaft; 3. a support plate; 4. rotating the ring; 5. a base; 6. a regulatory component; 61. a balancing weight; 62. pushing the column; 63. a rack bar; 64. a disc; 65. a push rod; 7. a speed limiting component; 71. driving the elastic piece; 72. a rotating rod; 73. a ratchet wheel; 74. pushing the plate; 75. a buffer rod; 76. a speed limiting plate;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

please refer to fig. 1-4, a numerically-controlled machine tool drive shaft auxiliary speed limiting protection device based on electromechanical technology, comprising a turntable 1, wherein the turntable 1 is provided with an even notch inside for driving a balancing weight 61 to rotate, the surface of the turntable 1 is provided with a rotating shaft 2 for driving the turntable 1 to rotate, the surface of the turntable 1 is provided with a support plate 3, the support plate 3 adopts a circular plate design and is located on the outer surface of the rotating shaft 2, the surface of the turntable 1 is connected with a rotating ring 4 for driving a rotating rod 72 to rotate, the turntable 1 is provided with a base 5 inside, the base 5 is located inside the turntable 1 and corresponds to the notch inside the turntable 1 for driving a regulating and controlling assembly 6 to rotate.

The inside of carousel 1 is provided with regulation and control subassembly 6, the inside design of regulation and control subassembly 6 has the extension spring, evenly distributed is at the side surface of base 5, the one end that base 5 was kept away from to the extension spring is connected with the side surface of balancing weight 61, a removal for balancing weight 61, regulation and control subassembly 6 includes balancing weight 61, balancing weight 61 evenly distributed is in the notch of carousel 1 inside, and be sliding connection between 1 the carousel, a removal for driving pushing away post 62, the surface of balancing weight 61 is provided with pushing away post 62, a removal for promoting push rod 65.

The inside of regulation and control subassembly 6 is provided with ratch 63, ratch 63 evenly distributed is at the upper surface of carousel 1, and the design has the axis of rotation spare between with carousel 1, mesh with ratchet 73, be used for restricting the rotation of bull stick 72, the lower surface of ratch 63 is provided with disc 64, disc 64 is located the inside of carousel 1, be coaxial design between the ratch 63 that corresponds, be used for driving ratch 63 and rotate, the side surface of disc 64 is provided with push rod 65, push rod 65 corresponds with the position of pushing post 62, be used for driving disc 64 and rotate, the surface of carousel 1 is provided with speed limit subassembly 7, be used for carrying out the speed limit to pivot 2.

Example two:

please refer to fig. 1-4, a numerically-controlled machine tool drive shaft auxiliary speed limiting protection device based on electromechanical technology, including a turntable 1, a uniform notch is formed in the turntable 1 for driving a counterweight block 61 to rotate, a rotating shaft 2 is arranged on the surface of the turntable 1 for driving the turntable 1 to rotate, a support plate 3 is arranged on the surface of the turntable 1, the support plate 3 adopts a circular plate design, and is located on the outer surface of the rotating shaft 2, a rotating ring 4 is connected to the surface of the turntable 1 for driving a rotating rod 72 to rotate, a base 5 is arranged in the turntable 1, the base 5 is located in the turntable 1 and corresponds to the notch in the turntable 1 for driving a regulating component 6 to rotate, a regulating component 6 is arranged in the turntable 1 for triggering the rotation speed limitation of the rotating shaft 2.

The surface of the turntable 1 is provided with a speed-limiting assembly 7, a driving rod is designed inside the speed-limiting assembly 7 and is uniformly distributed on the side surface of the support plate 3 and used for driving the push plate 74 to move, the speed-limiting assembly 7 comprises a driving elastic piece 71, the driving elastic piece 71 corresponds to the driving rod inside the speed-limiting assembly 7 and is used for pushing the driving rod inside the speed-limiting assembly 7 to move, a rotating rod 72 is arranged inside the speed-limiting assembly 7, a rotating shaft piece is designed between the rotating rod 72 and the surface of the turntable 1 and is in sliding connection with the driving rod inside the speed-limiting assembly 7, and one end, far away from the driving rod inside the speed-limiting assembly 7, of the rotating rod 72 is in sliding connection with the surface of the rotating ring 4 and is used for limiting the movement of the driving rod inside the speed-limiting assembly 7.

The lower surface of the rotating rod 72 is provided with a ratchet wheel 73, the ratchet wheel 73 and the rotating rod 72 are coaxially designed, the ratchet wheel 73 and the rotating rod 72 are matched with the surface of the toothed rod 63 and are used for limiting the rotation of the rotating rod 72, the surface of the speed limiting assembly 7 is provided with a push plate 74 which is used for driving the speed limiting plate 76 to move, the surface of one side, away from the speed limiting assembly 7, of the push plate 74 is provided with a buffer rod 75, the buffer rods 75 are uniformly distributed between the push plate 74 and the speed limiting plate 76 and are used for buffering and moving the speed limiting plate 76, one end, away from the push plate 74, of the buffer rod 75 is provided with the speed limiting plate 76, the speed limiting plate 76 is designed to be an arc-shaped plate and corresponds to the surface of the rotating shaft 2 and is used for limiting the speed of the rotating shaft 2.

Example three:

please refer to fig. 1-4, a numerically-controlled machine tool drive shaft auxiliary speed limiting protection device based on electromechanical technology, comprising a turntable 1, wherein the turntable 1 is provided with an even notch inside for driving a balancing weight 61 to rotate, the surface of the turntable 1 is provided with a rotating shaft 2 for driving the turntable 1 to rotate, the surface of the turntable 1 is provided with a support plate 3, the support plate 3 adopts a circular plate design and is located on the outer surface of the rotating shaft 2, the surface of the turntable 1 is connected with a rotating ring 4 for driving a rotating rod 72 to rotate, the turntable 1 is provided with a base 5 inside, the base 5 is located inside the turntable 1 and corresponds to the notch inside the turntable 1 for driving a regulating and controlling assembly 6 to rotate.

Carousel 1's inside is provided with regulation and control subassembly 6, the inside design of regulation and control subassembly 6 has the extension spring, evenly distributed is at base 5's side surface, the one end that base 5 was kept away from to the extension spring is connected with the side surface of balancing weight 61, a removal for balancing weight 61, regulation and control subassembly 6 includes balancing weight 61, balancing weight 61 evenly distributed is in the inside notch of carousel 1, and be sliding connection between the carousel 1, a removal for driving pushing away post 62, balancing weight 61's surface is provided with pushing away post 62, a removal for promoting push rod 65, regulation and control subassembly 6's inside is provided with ratch 63, ratch 63 evenly distributed is at the upper surface of carousel 1, and the design has the axis of rotation spare between carousel 1, mesh with ratchet 73, a rotation for restriction bull stick 72.

The lower surface of the toothed bar 63 is provided with a disc 64, the disc 64 is positioned in the turntable 1, the disc 64 and the corresponding toothed bar 63 are coaxially designed and used for driving the toothed bar 63 to rotate, a push rod 65 is arranged on the side surface of the disc 64, the push rod 65 corresponds to the position of the push column 62 and is used for driving the disc 64 to rotate, the surface of the turntable 1 is provided with a speed-limiting assembly 7, a driving rod is designed in the speed-limiting assembly 7 and is uniformly distributed on the side surface of the support plate 3 and used for driving the push plate 74 to move, the speed-limiting assembly 7 comprises a driving elastic piece 71, and the driving elastic piece 71 corresponds to the driving rod in the speed-limiting assembly 7 and is used for driving the driving rod in the speed-limiting assembly 7 to move.

A rotating rod 72 is arranged in the speed limiting assembly 7, a rotating shaft is arranged between the rotating rod 72 and the surface of the rotating disc 1 and is in sliding connection with a driving rod in the speed limiting assembly 7, one end, far away from the driving rod in the speed limiting assembly 7, of the rotating rod 72 is in sliding connection with the surface of the rotating ring 4 and is used for limiting the movement of the driving rod in the speed limiting assembly 7, a ratchet wheel 73 is arranged on the lower surface of the rotating rod 72, the ratchet wheel 73 and the rotating rod 72 are coaxially designed and are matched with the surface of the toothed rod 63 and used for limiting the rotation of the rotating rod 72.

The surface of the speed limiting assembly 7 is provided with a push plate 74 for driving the speed limiting plate 76 to move, the surface of one side of the push plate 74, which is far away from the speed limiting assembly 7, is provided with a buffer rod 75, the buffer rods 75 are uniformly distributed between the push plate 74 and the speed limiting plate 76 and used for buffering and moving the speed limiting plate 76, one end of the buffer rod 75, which is far away from the push plate 74, is provided with the speed limiting plate 76, and the speed limiting plate 76 is designed to be an arc-shaped plate, corresponds to the surface of the rotating shaft 2 and is used for limiting the speed of the rotating shaft 2.

The working principle is as follows: when a workpiece is processed by using a numerical control machine tool, the speed-limiting protection device can be used for carrying out speed-limiting protection on a driving shaft piece of the numerical control machine tool, and the specific operation steps are as follows:

when needs add man-hour to the work piece, pivot 2 can drive the work piece and rotate, pivot 2 can drive carousel 1 and rotate this moment, carousel 1 drives balancing weight 61 and rotates, can produce centrifugal effort when balancing weight 61 rotates, can drive the inside extension spring of regulation and control subassembly 6 and remove to the direction of keeping away from base 5, the rotational speed when pivot 2 is big more, the centrifugal effort that balancing weight 61 received is big more, the distance that the inside extension spring of simultaneous pulling regulation and control subassembly 6 removed is big more.

When the rotating speed of the rotating shaft 2 exceeds the set safe rotating speed, the counterweight block 61 drives the push post 62 on the surface to contact with the push rod 65 and push the push rod 65 to move, the push rod 65 drives the disc 64 to rotate, the disc 64 drives the toothed bar 63 to rotate, the toothed bar 63 can be separated from the surface of the ratchet wheel 73 when rotating, the rotation limitation of the ratchet wheel 73 is relieved at the moment, the rotation of the rotating bar 72 is not limited any more, correspondingly, the driving elastic piece 71 can drive the driving rod inside the speed limiting component 7 to move, and the driving rod drives the push plate 74 to move.

The push plate 74 drives the speed limiting plate 76 to move through the buffer rod 75, the speed limiting plate 76 moves towards the surface of the rotating shaft 2 and contacts with the surface of the rotating shaft 2, at the moment, friction acting force is generated between the speed limiting plate 76 and the surface of the rotating shaft 2, and when the surface of the rotating shaft 2 is subjected to the friction acting force, the rotating speed of the rotating shaft 2 is reduced along with the friction acting force, so that the rotating speed of the rotating shaft 2 can be limited, and a workpiece can be protected.

When the rotating shaft 2 is in a non-rotating state, the rotating ring 4 is rotated, the rotating ring 4 drives the rotating rod 72 to rotate, the rotating rod 72 drives the driving rod inside the speed limiting assembly 7 to move towards the direction of the driving elastic piece 71, the driving rod drives the push plate 74 to move, the push plate 74 drives the speed limiting plate 76 to move through the buffer rod 75, the speed limiting plate 76 is separated from the surface of the rotating shaft 2, and the limitation of the speed limiting plate 76 on the rotating speed of the rotating shaft 2 is removed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.