阅读说明：本技术 一种高精度数控机床切削行程的限位装置 (Stop device of high accuracy digit control machine tool cutting stroke ) 是由 袁东方 于 2020-05-19 设计创作，主要内容包括：本发明公开了一种高精度数控机床切削行程的限位装置,包括机架,所述机架内的一端开设有空腔；纵向移动结构,所述纵向移动结构位于机架上方的两侧,所述纵向移动结构包括丝杆、丝杆座和限位块,所述机架上方的两侧位于两端分别固定设置有丝杆座,两个所述丝杆座之间转动设置有丝杆；支撑座,所述支撑座位于两个丝杆之间。本发明通过转动电机带动第二齿轮转动,来带动固定座进行水平移动,即可控制两个丝杆同时进行转动,方便控制切割刀进行纵向移动,而且通过在第二齿轮的外周安装不同数量的第二齿条,就能够控制固定座的移动距离,从而控制切割刀的位移范围,便于调节切割刀的限位范围,结构简单且方便使用。(The invention discloses a limiting device for the cutting stroke of a high-precision numerical control machine tool, which comprises a rack, wherein a cavity is formed in one end in the rack; the longitudinal moving structure is positioned on two sides above the rack and comprises a screw rod, screw rod seats and a limiting block, the two sides above the rack are respectively and fixedly provided with the screw rod seats at two ends, and the screw rod is rotatably arranged between the two screw rod seats; and the supporting seat is positioned between the two screw rods. According to the invention, the second gear is driven to rotate by rotating the motor so as to drive the fixed seat to horizontally move, so that two screw rods can be controlled to simultaneously rotate, the cutting knife can be conveniently controlled to longitudinally move, and the moving distance of the fixed seat can be controlled by mounting different numbers of second racks on the periphery of the second gear, so that the displacement range of the cutting knife is controlled, the limit range of the cutting knife can be conveniently adjusted, and the cutting knife is simple in structure and convenient to use.)

1. The utility model provides a stop device of high accuracy digit control machine tool cutting stroke which characterized in that includes:

the device comprises a rack (1), wherein a cavity (2) is formed in one end in the rack (1);

the longitudinal moving structure is positioned on two sides above the rack (1), the longitudinal moving structure comprises a screw rod (3), screw rod seats (301) and a limiting block (302), the two ends of the two sides above the rack (1) are respectively and fixedly provided with the screw rod seats (301), and the screw rod (3) is rotatably arranged between the two screw rod seats (301);

the supporting seat (4) is positioned between the two screw rods (3), and two sides of the supporting seat (4) are respectively in threaded connection with the screw rods (3);

the horizontal moving structure is positioned above the supporting seat (4), and comprises a bracket (5), an electric telescopic rod (501) and a cutting knife (502);

the limiting structure is positioned in the cavity (2).

2. The stop device of high accuracy digit control machine tool cutting stroke according to claim 1, characterized by: and two ends of the screw rod (3) are respectively and fixedly sleeved with a limiting block (302).

3. The stop device of high accuracy digit control machine tool cutting stroke according to claim 1, characterized by: the supporting seat is characterized in that a support (5) is arranged above the supporting seat (4) in a sliding mode through a sliding groove, a cutting knife (502) is fixedly arranged on one side of the support (5), an electric telescopic rod (501) is fixedly arranged at one end above the supporting seat (4), and the output end of the electric telescopic rod (501) is fixedly connected with the support (5).

4. The stop device of high accuracy digit control machine tool cutting stroke according to claim 1, characterized by: limiting structure includes first gear (303), fixing base (6), fixed plate (7), second gear (8) and rotates motor (801), bottom in cavity (2) slides through the spacing groove and is provided with fixing base (6), the both sides of fixing base (6) top are fixed plate (7) that is provided with respectively, the top equidistance of fixed plate (7) is fixed and is provided with first rack (701).

5. The stop device of high accuracy numerically-controlled machine tool cutting stroke according to claim 4, characterized by: the same end of each of the two screw rods (3) is fixedly sleeved with a first gear (303), and the first gear (303) is in meshed connection with the first rack (701).

6. The stop device of high accuracy numerically-controlled machine tool cutting stroke according to claim 4, characterized by: the upper portion of the rack (1) is provided with a first hole groove (101) corresponding to the position of the first gear (303), so that the lower portion of the first gear (303) can penetrate through a shell of the rack (1), the two sides of the rack (1) corresponding to the positions of the fixing plates (7) are provided with second hole grooves (102), and the fixing plates (7) are connected with the second hole grooves (102) in a sliding mode.

7. The stop device of high accuracy numerically-controlled machine tool cutting stroke according to claim 4, characterized by: one side fixed mounting in cavity (2) has rotation motor (801), the fixed cover of output that rotates motor (801) has connect second gear (8), slot (802) have been seted up to the periphery of second gear (8) is even, it has second rack (9) to slide the grafting in slot (802).

8. The stop device of high accuracy numerically-controlled machine tool cutting stroke according to claim 7, characterized in that: screw holes (901) are formed in one side of the second rack (9), and fastening bolts (803) are installed on one side, away from the rotating motor (801), of the second gear (8) in a threaded mode corresponding to the positions of the screw holes (901) and used for fixing the second rack (9).

9. The stop device of high accuracy numerically-controlled machine tool cutting stroke according to claim 8, characterized by: the upper side and the lower side in the fixed seat (6) are respectively and fixedly provided with third racks (601) at equal intervals, and the second racks (9) are respectively meshed with the third racks (601) at the upper side and the lower side of the fixed seat.

10. The stop device of high accuracy digit control machine tool cutting stroke according to claim 1, characterized by: and a cabinet door (103) is arranged on the side surface of the rack (1) and positioned on the outer side of the cavity (2).

Technical Field

The invention relates to the technical field of numerical control machine tools, in particular to a limiting device for a cutting stroke of a high-precision numerical control machine tool.

Background

The numerical control machine tool is a short name of a digital control machine tool (Computer numerical control machine tools), and is an automatic machine tool provided with a program control system. The control system is capable of logically processing and decoding a program defined by a control code or other symbolic instructions, represented by coded numbers, which are input to the numerical control device via the information carrier. After operation, the numerical control device sends out various control signals to control the action of the machine tool, and the parts are automatically machined according to the shape and the size required by the drawing. The numerical control machine tool well solves the problem of machining of complex, precise, small-batch and various parts, is a flexible and high-efficiency automatic machine tool, represents the development direction of the control technology of modern machine tools, and is a typical mechanical and electrical integration product. Digit control machine tool is at the in-process that uses, because the length of work piece is different for some, so need make the cutting knife can adjust the distance of displacement according to the length of work piece at the in-process that carries out processing, and adjust the displacement and need use limit structure again, all can adjust the displacement distance of cutting knife through adjusting limit structure when processing different parts at every turn.

Traditional stop device changes the adjustment of displacement through numerical control procedure mostly, but it causes the cost too high to still need the user to carry out professional training and instruction when using, still need to change a plurality of parts in the in-process of using, it is comparatively troublesome to use, influences the machining efficiency of product.

Disclosure of Invention

The invention aims to provide a limiting device for a cutting stroke of a high-precision numerical control machine tool, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a limiting device for the cutting stroke of a high-precision numerical control machine tool comprises a machine frame, wherein a cavity is formed in one end in the machine frame; the longitudinal moving structure is positioned on two sides above the rack and comprises a screw rod, screw rod seats and a limiting block, the two sides above the rack are respectively and fixedly provided with the screw rod seats at two ends, and the screw rod is rotatably arranged between the two screw rod seats; the supporting seat is positioned between the two screw rods, and two sides of the supporting seat are respectively in threaded connection with the screw rods; the horizontal moving structure is positioned above the supporting seat and comprises a bracket, an electric telescopic rod and a cutting knife; and the limiting structure is positioned in the cavity.

Preferably, two ends of the screw rod are respectively and fixedly sleeved with a limiting block.

Preferably, a support is arranged above the supporting seat in a sliding mode through a sliding groove, a cutting knife is fixedly arranged on one side of the support, an electric telescopic rod is fixedly arranged at one end above the supporting seat, and the output end of the electric telescopic rod is fixedly connected with the support.

Preferably, limit structure includes first gear, fixing base, fixed plate, second gear and rotation motor, the bottom in the cavity slides through the spacing groove and is provided with the fixing base, the both sides of fixing base top are fixed respectively and are provided with the fixed plate, the fixed first rack that is provided with of top equidistance of fixed plate.

Preferably, the same end of each of the two screw rods is fixedly sleeved with a first gear, and the first gear is in meshed connection with the first rack.

Preferably, a first hole groove is formed in the position, corresponding to the first gear, above the rack, so that the lower portion of the first gear can penetrate through the shell of the rack, second hole grooves are formed in the positions, corresponding to the fixing plates, of the two sides of the rack, and the fixing plates are in sliding connection with the second hole grooves.

Preferably, a rotating motor is fixedly mounted on one side in the cavity, a second gear is fixedly sleeved on an output end of the rotating motor, slots are uniformly formed in the periphery of the second gear, and second racks are inserted in the slots in a sliding mode.

Preferably, a screw hole is formed in one side of the second rack, and a fastening bolt is installed on one side, away from the rotating motor, of the second gear in a threaded manner at a position corresponding to the screw hole and used for fixing the second rack.

Preferably, the upper side and the lower side in the fixing seat are respectively and fixedly provided with third racks at equal intervals, and the second racks are respectively meshed with the third racks at the upper side and the lower side of the fixing frame.

Preferably, a cabinet door is arranged on the side surface of the rack and positioned on the outer side of the cavity.

Compared with the prior art, the invention has the beneficial effects that:

1. the lead screws are respectively arranged on two sides above the rack in a rotating mode through the lead screw seats, the supporting seat is installed above the two lead screws and can be driven to move through the rotation of the lead screws, so that the cutting knife can longitudinally move, a first gear is sleeved at one end of each lead screw, a fixing seat is arranged in the cavity in a sliding mode, fixing plates are respectively fixedly arranged on two sides above the fixing seat, first racks are fixedly arranged on the fixing plates at equal intervals and are meshed with the first racks through the first gears, the two lead screws can be driven to simultaneously rotate when the fixing seat slides, and the cutter can be conveniently controlled to move;

2. by fixedly arranging a rotating motor at one side in the cavity, a second gear is fixedly sleeved on the output end of the rotating motor, slots are uniformly arranged on the periphery of the second gear, the second rack can be inserted into the slot and fixed by the fastening bolt, the upper and lower sides in the fixed seat are respectively and fixedly provided with a third rack at equal intervals, the second gear is respectively meshed with the third racks on the upper side and the lower side, the second gear can be driven to rotate by the rotating motor, so that the fixed seat can horizontally reciprocate, thereby driving the screw rod to rotate, installing different numbers of second racks according to actual use, wherein the total number of the installed second racks cannot exceed half of the periphery of the second gear, the more the second rack of installation in this scope, just can drive the distance of supporting seat displacement the bigger to can control the longitudinal displacement stroke of cutting knife.

3. The support is arranged above the supporting seat in a sliding mode, the electric telescopic rod is fixedly arranged on one side of the supporting seat, the output end of the electric telescopic rod is fixedly connected with the support, the cutting knife is fixedly installed on one side of the support, the support can be driven to move above the supporting seat through the electric telescopic rod in the cutting process, and therefore the cutting knife can be driven to move longitudinally and is convenient to use.

Drawings

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

FIG. 2 is a side view of a portion of the structure of the present invention;

FIG. 3 is a partial sectional view of the present invention;

FIG. 4 is a view of the structure A of FIG. 3 according to the present invention;

FIG. 5 is a side view of a second gear in accordance with the present invention;

fig. 6 is a front view of a second rack in the present invention.

In the figure: 1-a frame; 101-a first bore groove; 102-a second bore groove; 103-cabinet door; 2-a cavity; 3-a screw rod; 301-screw base; 302-a stopper; 303-a first gear; 4-a support seat; 5-a bracket; 501-electric telescopic rod; 502-a cutting knife; 6-fixing the base; 601-a third rack; 7-fixing the plate; 701-a first rack; 8-a second gear; 801-rotating electric machine; 802-slot; 803-fastening bolts; 9-a second rack; 901-screw holes.

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.

Referring to fig. 1-6, the present invention provides a technical solution: a stop device of high accuracy digit control machine tool cutting stroke includes: the device comprises a rack 1, a longitudinal moving structure, a supporting seat 4, a horizontal moving structure and a limiting structure.

Referring to fig. 1 and 2, the longitudinal moving structure is located on two sides of the upper portion of the rack 1, the longitudinal moving structure includes a screw rod 3, screw rod seats 301 and a limiting block 302, two ends of the two sides of the upper portion of the rack 1 are respectively and fixedly provided with the screw rod seats 301, and the screw rod 3 is rotatably arranged between the two screw rod seats 301, so that the screw rod 3 can rotate in the two screw rod seats 301.

Referring to fig. 1-3, the support seat 4 is located between two screws 3, two sides of the support seat 4 are respectively in threaded connection with the screws 3, and the support seat 4 can be driven to move in the process of rotating the screws 3;

in order to prevent the support seat 4 from moving to the position of the screw seat 301, the two ends of the screw 3 are respectively and fixedly sleeved with a limit block 302, so that the support seat 4 can be limited to move only between the two limit blocks 302.

Referring to fig. 1-3, the horizontal movement structure is located above the supporting seat 4, the horizontal movement structure includes a support 5, an electric telescopic rod 501 and a cutting knife 502, the support 5 is arranged above the supporting seat 4 in a sliding manner through a sliding groove, the cutting knife 502 is fixedly arranged on one side of the support 5, the electric telescopic rod 501 is fixedly arranged at one end above the supporting seat 4, the output end of the electric telescopic rod 501 is fixedly connected with the support 5, and the electric telescopic rod 501 drives the support 5 to slide on the supporting seat 4, so that the cutting knife 502 can be driven to move in the horizontal direction.

Referring to fig. 2-3, a cavity 2 is formed in one end of the rack 1, the limiting structure is located in the cavity 2, the limiting structure includes a first gear 303, a fixing seat 6, a fixing plate 7, a second gear 8 and a rotating motor 801, the fixing seat 6 is slidably arranged at the bottom of the cavity 2 through a limiting groove, so that the fixing seat 6 can slide at the bottom of the cavity 2, and the balance of the fixing seat 6 is maintained.

Referring to fig. 1-3, fixed plates 7 are respectively and fixedly arranged on two sides above the fixed base 6, first racks 701 are fixedly arranged on the fixed plates 7 at equal intervals, two first gears 303 are fixedly sleeved on the same ends of the two lead screws 3 respectively, the first gears 303 are meshed with the first racks 701, and the two fixed plates 7 can be moved by the fixed base 6 to drive the two lead screws 3 to rotate, so that the cutting knife 502 can be conveniently controlled to move longitudinally.

Referring to fig. 1 and 3, a first hole 101 is formed above the rack 1 corresponding to the position of the first gear 303, so that the lower portion of the first gear 303 can pass through the housing of the rack 1, and the bottom of the first gear 303 can be engaged with the first rack 701 above the fixing plate 7, second hole 102 is further formed on both sides of the rack 1 corresponding to the position of the fixing plate 7, and the fixing plate 7 and the second hole 102 are slidably connected, so that not only can the fixing plate 7 pass through the second hole 102, but also the fixing effect of the fixing plate 7 can be improved by slidably connecting the second hole 102 and the fixing plate 7, and the fixing plate 7 can be kept in a balanced state.

Referring to fig. 3 to 6, in order to enable the fixing base 6 to horizontally move, a rotating motor 801 is fixedly installed at one side in the cavity 2, a second gear 8 is fixedly sleeved at an output end of the rotating motor 801, slots 802 are uniformly formed in the periphery of the second gear 8, second racks 9 are slidably inserted into the slots 802, the appearance of a traditional gear is changed, a gear main body is separated from the racks, and different numbers of second racks 9 can be installed according to actual use in the using process.

Referring to fig. 3-4, the upper and lower sides of the fixed seat 6 are respectively and fixedly provided with third racks 601 at equal intervals, the second racks 9 are respectively engaged with the third racks 601 at the upper and lower sides of the fixed seat, the second rack 9 can only be engaged with the third rack 601 at one side each time in the rotating process, when the second rack 9 is installed, the total number of the installed second racks 9 cannot be more than half of the outer circumference of the second gear 8, the second rack 9 is prevented from being simultaneously engaged with the third racks 601 at the upper and lower sides, and the larger the number of the second racks 9 installed in the range, the larger the distance for the second gear 8 to drive the fixed seat 6 to displace in the rotating process is, so that the displacement distance of the supporting seat 4 can be increased, and the displacement range of the cutting knife 502 can be controlled by controlling the number of the second racks 9 at the outer circumference of the second gear 8, limiting is convenient for the cutting knife 502, and the structure is simple and the use is convenient.

Referring to fig. 3 and 6, in order to fix the second rack 9, a screw hole 901 is formed in one side of the second rack 9, and a fastening bolt 803 is threadedly installed at a position, corresponding to the screw hole 901, on one side of the second gear 8 away from the rotating motor 801, when the second rack 9 is installed, the second rack 9 is firstly inserted into the slot 802 of the second gear 8, and then the second rack 9 can be fixed by rotating the fastening bolt 803, and similarly, when the second rack 9 needs to be detached from the second gear 8, only the fastening bolt 803 needs to be rotated reversely.

Referring to fig. 2, in order to open the cavity 2 conveniently, when an operator installs or detaches the second rack 9 around the second gear 8, the side of the rack 1 is located outside the cavity 2 and is provided with a cabinet door 103, and the cabinet door 103 is opened to enter the cavity 2, so that the maintenance and detachment are facilitated.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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.