CN112916905B

CN112916905B - Numerical control punching system

Info

Publication number: CN112916905B
Application number: CN202110083920.4A
Authority: CN
Inventors: 罗静婷
Original assignee: Guangdong Chenwei Technology Co ltd
Current assignee: Guangdong Chenwei Technology Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2022-06-10
Anticipated expiration: 2041-01-21
Also published as: CN112916905A

Abstract

The invention relates to the field of punching processing equipment, in particular to a numerical control punching processing system, which comprises a punching mechanism, a sliding frame mechanism, a reset mechanism, a driving mechanism, a transmission control mechanism, a rack, a vertical frame plate and a base plate, wherein the punching mechanism is fixedly connected to the front end of the sliding frame mechanism; the middle part of the punching mechanism is in sliding fit with the vertical frame plate; the vertical frame plate is fixed on the base plate; the rear end of the punching mechanism is fixedly connected with the resetting mechanism; the resetting mechanism is fixedly connected to the base plate; the punching mechanism is in meshed transmission connection with the rack, and the rack is fixed on the base plate; the driving mechanism fixedly connected to the base plate is in transmission connection with the transmission control mechanism; the transmission control mechanism is connected to the base plate in a matching way; the automatic punching device is convenient to be matched with an automatic feeding device to continuously punch a workpiece, and has good punching effect and high punching efficiency.

Description

Numerical control punching system

Technical Field

The invention relates to the field of punching processing equipment, in particular to a numerical control punching processing system.

Background

Numerical control punching refers to a technology of punching a target pattern in a plate to be processed by using a computer-controlled punching machine. Numerical control punching is convenient and fast, high in accuracy, strong in controllability and the like, continuously adapts to different requirements, and increasingly replaces the traditional manual punching method, so that the numerical control punching becomes the mainstream. However, the punching device in the prior art is inconvenient to cooperate with an automatic feeding device to continuously punch the workpiece.

Disclosure of Invention

The invention aims to provide a numerical control punching processing system which can effectively overcome the defects in the prior art.

In order to achieve the purpose, the application provides a numerical control punching processing system which comprises a punching mechanism, a carriage mechanism, a resetting mechanism, a driving mechanism, a transmission control mechanism, a rack, a vertical frame plate and a base plate, wherein the punching mechanism is fixedly connected to the front end of the carriage mechanism; the middle part of the punching mechanism is in sliding fit with the vertical frame plate; the vertical frame plate is fixed on the base plate; the rear end of the punching mechanism is fixedly connected with the resetting mechanism; the resetting mechanism is fixedly connected to the base plate; the punching mechanism is in meshed transmission connection with the rack, and the rack is fixed on the base plate; the driving mechanism fixedly connected to the base plate is in transmission connection with the transmission control mechanism; the transmission control mechanism is connected to the base plate in a matching manner; the transmission control mechanism is in transmission connection with the sliding frame mechanism.

Optionally, the punching mechanism comprises a punching motor, a punching drill and a motor frame; an output shaft of the punching motor is in transmission connection with a punching drill bit through a coupler; the punching motor is fixed on the motor frame; the motor frame is fixed at the front end of the sliding frame mechanism.

Optionally, the sliding frame mechanism comprises a sliding frame body, a lifting gear, a rotating shaft, a driven bevel gear, a driving bevel gear, a sliding rotating pipe and a receiving frame; the front end of the sliding frame body is fixedly connected with the punching mechanism; the middle part of the sliding frame body is connected in the longitudinal slide way of the vertical frame plate in a sliding fit manner; the rear end of the sliding frame body is connected with the rotating shaft in a rotating fit manner; the middle part of the rotating shaft is fixedly connected with a lifting gear; the lifting gear is in meshed transmission connection with the teeth on the front side surface of the rack; one end of the rotating shaft is fixedly connected with the driven bevel gear; the driven bevel gear is in meshed connection with the driving bevel gear; the driving bevel gear is fixed on the sliding rotating pipe; the inner side of the sliding rotating pipe is provided with a hexagonal slideway, and the inner side of the hexagonal slideway is connected to the transmission control mechanism in a matching way; the rotating shaft and the sliding rotating pipe are rotationally matched on the bearing frame; the bearing frame is fixed on the sliding frame body; the rear end of the sliding frame body is fixedly connected with the reset mechanism.

Optionally, the carriage mechanism further comprises a guide vertical shaft; the guide vertical shaft is fixed in a longitudinal slide way of the vertical frame plate; the middle part of the sliding frame body is connected to the vertical guide shaft in a sliding fit mode.

Optionally, the reset mechanism comprises a linkage cross frame, a longitudinal screw, a limit nut and a reset pressure spring; one end of the linkage cross frame is fixedly connected to the sliding frame body; the other end of the linkage transverse frame is in sliding fit with the longitudinal screw; the lower end of the longitudinal screw is fixed on the base plate; a reset pressure spring is sleeved on the longitudinal screw rod and is positioned between the base plate and the linkage cross frame; the longitudinal screw rod is connected with a limiting nut in a threaded fit manner; and the limiting nut is blocked on the linkage cross frame.

Optionally, the driving mechanism comprises a servo motor with a reducer, an irregular gear and a motor bracket; the servo motor is fixed on the base plate through a motor support; the output shaft of the servo motor is fixedly connected with the irregular gear; the irregular gear is in intermittent meshing transmission connection with the transmission control mechanism.

Optionally, the transmission control mechanism includes a rotary gear, a rotating shaft, a shaft seat, a friction transmission wheel, a friction linkage disk, a transmission shaft, a hexagonal rotating rod and an L-shaped rod frame; the irregular gear is in intermittent meshing transmission connection with the rotating gear; the rotating gear is fixed at one end of the rotating shaft; the rotating shaft is rotationally matched on the shaft seat, and the shaft seat is fixed on the base plate; the other end of the rotating shaft is connected with the friction driving wheel in a matching way so as to drive the friction driving wheel to rotate; the friction transmission wheel is connected with the friction linkage disc in a friction vertical friction transmission manner; the friction linkage disc is fixed at the lower end of the transmission shaft; the transmission shaft is rotationally matched on the base plate through a bearing with a seat; the upper end of the transmission shaft is fixedly connected with the hexagonal rotating rod; the hexagonal rotating rod is rotationally matched with the transverse frame of the L-shaped rod frame, and the vertical frame of the L-shaped rod frame is fixed on the base plate; the sliding rotating pipe is in sliding fit with the hexagonal rotating rod through the hexagonal slideway so as to rotate under the transmission of the hexagonal rotating rod.

Optionally, the numerical control punching system further comprises a variable pitch adjusting mechanism; the friction transmission wheel comprises a transmission wheel body and a cylindrical sleeve; the transmission wheel body is fixed on the cylindrical sleeve; the cylindrical sleeve is in sliding fit with the rotating shaft; the rotating shaft is provided with a groove which is in sliding fit with a convex edge arranged on the inner side of the cylindrical sleeve;

the variable pitch adjusting mechanism comprises a linkage gear, a first transverse shaft, a first chain wheel, a second transverse shaft, a T-shaped bracket, a second chain wheel, a third chain wheel, a fourth chain wheel, a lead screw, a variable pitch connecting plate and a side frame; the irregular gear is in intermittent meshing transmission connection with the linkage gear; the linkage gear is fixed at one end of the first transverse shaft, the other end of the first transverse shaft is fixedly connected with a first chain wheel, the first chain wheel is connected with a second chain wheel fixed on the second transverse shaft through chain transmission, the first transverse shaft and the second transverse shaft are in running fit on the T-shaped support, and the T-shaped support is fixed on the base plate; the second transverse shaft is fixedly connected with a third chain wheel, the third chain wheel is connected with a fourth chain wheel through chain transmission, and the fourth chain wheel is fixedly connected to the lead screw; two ends of the screw rod are respectively connected with a side frame in a rotating fit mode, and the two side frames are oppositely fixed on the base plate; the middle part of the lead screw is in transmission connection with one end of the variable pitch link plate through threads; the other end of the variable-pitch connecting plate is rotatably connected to the cylindrical sleeve.

Optionally, the fourth sprocket comprises a sprocket body, a collar and a linkage bolt; the third chain wheel is in transmission connection with the chain wheel body through a chain; the chain wheel body and the lantern ring are rotationally matched on the lead screw; the lantern ring is fixed at one end of the chain wheel body; the lantern ring is connected with the linkage bolt in a threaded fit manner; the inner side of the linkage bolt is inserted into the linkage slot on the surface of the lead screw.

Optionally, the irregular gear is a bevel gear with a quarter circle in shape.

The invention has the beneficial effects that: the internal punching mechanism can perform continuous punching work under the coordination of the driving mechanism, the sliding frame mechanism, the transmission control mechanism and the reset mechanism, is convenient to cooperate with an automatic feeding device to perform continuous punching treatment on a workpiece, and has good punching effect and high punching efficiency; the variable-pitch adjusting mechanism is arranged in the punching machine, so that continuous punching treatment with the depth gradually changed from shallow to deep can be performed when a thicker workpiece is punched, the punching effect can be effectively improved, and the influence on the punching effect caused by excessive waste accumulated in the hole when the punching is too deep is prevented.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a first general schematic diagram provided in accordance with an embodiment of the present invention;

FIG. 2 is a second overall view provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of a punching mechanism provided by an embodiment of the present invention;

fig. 4 is a first schematic diagram of a carriage mechanism according to an embodiment of the present invention;

fig. 5 is a second schematic diagram of a carriage mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic view of a reset mechanism provided by an embodiment of the present invention;

FIG. 7 is a schematic view of a drive mechanism provided by an embodiment of the present invention;

FIG. 8 is a schematic view of a transmission control mechanism provided in accordance with an embodiment of the present invention;

fig. 9 is a schematic view of a friction drive wheel provided in an embodiment of the present invention;

FIG. 10 is a schematic view of a pitch adjustment mechanism provided in an embodiment of the present invention;

FIG. 11 is a schematic view of a fourth sprocket provided in accordance with an embodiment of the present invention.

Icon: a punching mechanism 1; a punching motor 101; a punch bit 102; a motor mount 103; a carriage mechanism 2; a sliding frame body 201; a lifting gear 202; a rotation shaft 203; a driven bevel gear 204; a drive bevel gear 205; a sliding rotating tube 206; a receiving frame 207; a guide vertical shaft 208; a reset mechanism 3; a linkage cross frame 301; a longitudinal screw 302; a limit nut 303; a return compression spring 304; a drive mechanism 4; a servo motor 401; an irregular gear 402; a motor bracket 403; a transmission control mechanism 5; a rotary gear 501; a rotating shaft 502; a shaft seat 503; a friction drive wheel 504; a drive wheel body 504A; a cylindrical sleeve 504B; a friction link plate 505; a drive shaft 506; a hexagonal rotary shaft 507; an L-shaped bar frame 508; a rack 6; a vertical frame plate 7; a base plate 8; a variable pitch adjusting mechanism 9; a linkage gear 901; a first horizontal axis 902; a first sprocket 903; a second lateral axis 904; a T-shaped bracket 905; a second sprocket 906; a third sprocket 907; a fourth sprocket 908; a sprocket body 908A; a collar 908B; a link bolt 908C; a lead screw 909; a variable pitch link plate 910; side frame 911.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for understanding and reading the contents disclosed in the specification, and are not used for limiting the conditions that the present application can implement, so the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical content disclosed in the present application without affecting the efficacy and the achievable purpose of the present application. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present application, and changes or modifications in the relative relationship may be made without substantial technical changes.

The invention is described in further detail below with reference to fig. 1-11.

The specific implementation mode is as follows:

as shown in fig. 1-11, a numerical control punching system includes a punching mechanism 1, a carriage mechanism 2, a reset mechanism 3, a driving mechanism 4, a transmission control mechanism 5, a rack 6, a vertical frame plate 7 and a base plate 8, wherein the punching mechanism 1 is fixedly connected to the front end of the carriage mechanism 2; the middle part of the punching mechanism 1 is in sliding fit with the vertical frame plate 7; the vertical frame plate 7 is fixed on the base plate 8; the rear end of the punching mechanism 1 is fixedly connected with the resetting mechanism 3; the resetting mechanism 3 is fixedly connected to the base plate 8; the punching mechanism 1 is in meshed transmission connection with the rack 6, and the rack 6 is fixed on the base plate 8; the driving mechanism 4 fixedly connected to the base plate 8 is in transmission connection with the transmission control mechanism 5; the transmission control mechanism 5 is connected to the base plate 8 in a matching way; the transmission control mechanism 5 is in transmission connection with the sliding frame mechanism 2. The punching mechanism 1 in the invention is used for punching a workpiece after being started, the driving mechanism 4 can drive the transmission control mechanism 5 to work when being contacted with the transmission control mechanism 5 after being started, the transmission control mechanism 5 can drive the sliding frame mechanism 2 to be matched with the rack 6 to move downwards when working, the sliding frame mechanism 2 can drive the punching mechanism 1 to punch the workpiece downwards and drive the reset mechanism 3 to move when moving downwards, when the driving mechanism 4 is separated from the transmission control mechanism 5 after being started, the sliding frame mechanism 2 can reset upwards under the driving of the resetting mechanism 3, thereby drive mechanism 1 that punches a hole and return to the normal position, be convenient for cooperate automatic feeding to carry out the work of punching a hole of continuous type to a plurality of work pieces, also can carry out the work of punching a hole many times to a work piece for punch a hole comparatively level and smooth, punch a hole effectually, punch a hole efficiently.

The punching mechanism 1 comprises a punching motor 101, a punching drill 102 and a motor frame 103; an output shaft of the punching motor 101 is in transmission connection with a punching drill 102; the punching motor 101 is fixed on the motor frame 103; the motor mount 103 is fixed to the front end of the carriage mechanism 2. After the punching motor 101 is started, the punching drill 102 can be driven to rotate, and punching work is carried out through the punching drill 102; the motor frame 103 can move downwards under the driving of the carriage mechanism 2, and finally drives the punching drill 102 to punch a hole on the workpiece downwards.

The sliding frame mechanism 2 comprises a sliding frame body 201, a lifting gear 202, a rotating shaft 203, a driven bevel gear 204, a driving bevel gear 205, a sliding rotating pipe 206 and a bearing frame 207; the front end of the sliding frame body 201 is fixedly connected with the punching mechanism 1; the middle part of the sliding frame body 201 is connected in the longitudinal slide way of the vertical frame plate 7 in a sliding fit manner; the rear end of the sliding frame body 201 is connected with the rotating shaft 203 in a rotating fit manner; the middle part of the rotating shaft 203 is fixedly connected with a lifting gear 202; the lifting gear 202 is in meshed transmission connection with the teeth on the front side surface of the rack 6; one end of the rotating shaft 203 is fixedly connected with the driven bevel gear 204; the driven bevel gear 204 is in meshed connection with the drive bevel gear 205; the drive bevel gear 205 is fixed on the sliding rotating pipe 206; the inner side of the sliding rotating pipe 206 is provided with a hexagonal slideway, and the inner side of the hexagonal slideway is connected to the transmission control mechanism 5 in a matching way; the rotating shaft 203 and the sliding rotating pipe 206 are both rotationally matched on the bearing frame 207; the receiving frame 207 is fixed on the sliding frame body 201; the rear end of the sliding frame body 201 is fixedly connected with the reset mechanism 3. As shown in fig. 5, the sliding rotating pipe 206 inside the carriage mechanism 2 can be driven by the transmission control mechanism 5 to rotate without affecting the sliding of the sliding rotating pipe 206 up and down on the transmission control mechanism 5, when the transmission control mechanism 5 rotates, the driving bevel gear 205 can drive the driven bevel gear 204 to rotate counterclockwise, when the driven bevel gear 204 rotates counterclockwise, the rotating shaft 203 drives the lifting gear 202 to rotate counterclockwise, when the lifting gear 202 rotates counterclockwise, the lifting gear 202 is driven by the rack 6 to move downward by matching with the rack, when the lifting gear 202 moves downward, the rotating shaft 203 drives the sliding frame body 201 to move downward, and the sliding frame body 201 acts on the reset mechanism 3 and drives the motor frame 103 to move downward, thereby driving the punching mechanism 1 to perform punching processing.

The carriage mechanism 2 further comprises a guide vertical shaft 208; the guide vertical shaft 208 is fixed in a longitudinal slide way of the vertical frame plate 7; the sliding frame body 201 is connected to the vertical guide shaft 208 in a sliding fit manner. The guiding vertical shaft 208 is used for cooperating with the vertical frame plate 7 to play a guiding and limiting role for the sliding frame body 201 in the reset mechanism 3, so that the sliding frame body 201 can only perform vertical sliding motion.

The reset mechanism 3 comprises a linkage cross frame 301, a longitudinal screw 302, a limit nut 303 and a reset pressure spring 304; one end of the linkage cross frame 301 is fixedly connected to the sliding frame body 201; the other end of the linkage cross frame 301 is in sliding fit with the longitudinal screw 302; the lower end of the longitudinal screw 302 is fixed on the base plate 8; a reset compression spring 304 is sleeved on the longitudinal screw 302, and the reset compression spring 304 is positioned between the base plate 8 and the linkage cross frame 301; the longitudinal screw 302 is connected with a limit nut 303 through thread matching; the limit nut 303 is blocked on the linkage cross frame 301. When the carriage mechanism 2 moves downwards, the linkage cross frame 301 in the reset mechanism 3 can move downwards under the driving of the sliding frame body 201 so as to compress the reset pressure spring 304, when the driving mechanism 4 is separated from the transmission control mechanism 5, the linkage cross frame 301 can move upwards under the elastic action of the reset pressure spring 304 so as to drive the sliding frame body 201 to move upwards, and the sliding frame body 201 drives the punching mechanism 1 to return to the original position, so that the secondary punching work is facilitated; the position of the limiting nut 303 on the longitudinal screw rod 302 can be adjusted, so that the highest position of the sliding frame body 201 can be conveniently adjusted, the highest position of the punching mechanism 1 can be adjusted, and the adjusting mechanism is suitable for adjusting workpieces with different thicknesses when punching.

The driving mechanism 4 comprises a servo motor 401 with a speed reducer, an irregular gear 402 and a motor bracket 403; the servo motor 401 is fixed on the base plate 8 through a motor bracket 403; the output shaft of the servo motor 401 is fixedly connected with the irregular gear 402; the irregular gear 402 is in intermittent meshing transmission connection with the transmission control mechanism 5. After the servo motor 401 is started, the irregular gear 402 can be driven to rotate, the irregular gear 402 rotates to the position where the transmission control mechanism 5 is in contact with, the transmission control mechanism 5 can be driven to work, the irregular gear 402 rotates to the position where the transmission control mechanism 5 is separated, and the sliding frame body 201 drives the punching mechanism 1 to return to the original position.

The transmission control mechanism 5 comprises a rotary gear 501, a rotating shaft 502, a shaft seat 503, a friction driving wheel 504, a friction linkage disc 505, a transmission shaft 506, a hexagonal rotating rod 507 and an L-shaped rod frame 508; the irregular gear 402 is in intermittent meshing transmission connection with the rotary gear 501; the rotary gear 501 is fixed at one end of the rotary shaft 502; the rotating shaft 502 is rotatably matched on the shaft seat 503, and the shaft seat 503 is fixed on the base plate 8; the other end of the rotating shaft 502 is connected with the friction driving wheel 504 in a matching manner so as to drive the friction driving wheel 504 to rotate; the friction driving wheel 504 is connected with a friction linkage plate 505 in a friction vertical friction driving way; the friction linkage plate 505 is fixed at the lower end of the transmission shaft 506; the transmission shaft 506 is rotationally matched on the base plate 8 through a bearing with a seat; the upper end of the transmission shaft 506 is fixedly connected with the hexagonal rotating rod 507; the hexagonal rotating rod 507 is in running fit with a cross frame of the L-shaped rod frame 508, and a vertical frame of the L-shaped rod frame 508 is fixed on the base plate 8; the sliding rotating pipe 206 is in sliding fit with the hexagonal rotating rod 507 through a hexagonal slideway so as to rotate under the transmission of the hexagonal rotating rod 507. Irregular gear 402 rotates and can drive rotary gear 501 to rotate when contacting with rotary gear 501, can drive friction drive wheel 504 through axis of rotation 502 during rotary gear 501 rotates, drives friction linkage disk 505 when friction drive wheel 504 rotates and rotates, drives slip runner 206 through six arris bull stick 507 during friction linkage disk 505 rotates and do not influence slip runner 206 and slide motion on six arris bull stick 507, thereby control 2 drive of balladeur train mechanism 1 work of punching a hole downwards, irregular gear 402 rotates to when separating with rotary gear 501, then is convenient for canceling release mechanical system 3 passes through 2 drives of balladeur train mechanism 1 work of resetting of punching a hole.

The numerical control punching processing system also comprises a variable pitch adjusting mechanism 9; the friction transmission wheel 504 comprises a transmission wheel body 504A and a cylindrical sleeve 504B; the transmission wheel body 504A is fixed on the cylindrical sleeve 504B; the cylindrical sleeve 504B is a sliding fit over the rotating shaft 502; a groove is formed in the rotating shaft 502 and is in sliding fit with a convex edge arranged on the inner side of the cylindrical sleeve 504B;

the variable pitch adjusting mechanism 9 comprises a linkage gear 901, a first horizontal shaft 902, a first chain wheel 903, a second horizontal shaft 904, a T-shaped bracket 905, a second chain wheel 906, a third chain wheel 907, a fourth chain wheel 908, a screw shaft 909, a variable pitch link plate 910 and a side frame 911; the irregular gear 402 is in intermittent meshing transmission connection with the linkage gear 901; the linkage gear 901 is fixed at one end of the first transverse shaft 902, the other end of the first transverse shaft 902 is fixedly connected with a first chain wheel 903, the first chain wheel 903 is connected with a second chain wheel 906 fixed on the second transverse shaft 904 through chain transmission, the first transverse shaft 902 and the second transverse shaft 904 are both matched on a T-shaped support 905 in a rotating way, and the T-shaped support 905 is fixed on the base plate 8; a third chain wheel 907 is fixedly connected to the second transverse shaft 904, the third chain wheel 907 is connected with a fourth chain wheel 908 through chain transmission, and the fourth chain wheel 908 is fixedly connected to the lead screw 909; two ends of the screw 909 are respectively connected with one side frame 911 in a rotating fit manner, and the two side frames 911 are relatively fixed on the base plate 8; the middle part of the lead screw 909 is connected with one end of the variable pitch link plate 910 through thread transmission; the other end of the variable pitch link plate 910 is rotatably connected to the cylindrical sleeve 504B; the outer end of the lead screw 909 is fixedly connected with a back-off rotating wheel. The variable-pitch adjusting mechanism 9 is arranged in the punching machine, so that continuous punching treatment with the depth gradually changed from shallow to deep can be performed when a thicker workpiece is punched, the punching effect can be effectively improved, and waste accumulated in a hole when the punching is too deep is prevented from influencing the punching effect; when the irregular gear 402 rotates to be separated from the rotating gear 501 and contacts with the linked gear 901, the linked gear 901 can be driven to rotate, when the linked gear 901 rotates, the first chain wheel 903 can be driven to rotate by the first cross shaft 902, when the first chain wheel 903 rotates, the second chain wheel 906 is driven to rotate by the chain, the third chain wheel 907 is driven to rotate by the second cross shaft 904, the third chain wheel 907 is driven to rotate by the chain, when the fourth chain wheel 908 rotates, the lead screw 909 can be driven to rotate, when the lead screw 909 rotates, the cylindrical sleeve 504B can be driven to slide inwards on the rotating shaft 502 without influencing the rotating shaft 502 to drive the cylindrical sleeve 504B to rotate, so that the driving wheel body 504A gradually moves towards the center of the friction linked disk 505, the transmission ratio is changed, the number of rotation turns of the friction linked disk 505 is gradually increased when the driving wheel body 504A rotates for each turn, finally, the number of turns of the lifting gear 202 is driven to rotate to increase gradually when the number of turns of the driving wheel body 504A is not changed, so that the lifting gear 202 and the rack 6 are matched to drive the depth of downward punching of the punching drill 102 in the punching mechanism 1 to become deeper gradually, continuous punching processing of which the depth gradually changes from shallow to deep can be performed when a thicker workpiece is punched, the punching effect can be effectively improved, and waste accumulated in a hole when the punching is too deep is prevented from affecting the punching effect; after the machining is finished, the screw 909 is driven to rotate reversely by rotating the back-adjusting rotating wheel, the variable-pitch link plate 910 is adjusted to the original position, and finally the contact position between the driving wheel body 504A and the friction link plate 505 is reset.

The fourth sprocket 908 comprises a sprocket body 908A, a collar 908B, and a linkage bolt 908C; the third chain wheel 907 is connected with the chain wheel body 908A through chain transmission; the sprocket body 908A and the collar 908B are both rotationally engaged on the lead screw 909; the collar 908B is fixed to one end of the sprocket body 908A; the collar 908B is connected with the linkage bolt 908C through thread matching; the inner side of the linkage bolt 908C is inserted into the linkage slot on the surface of the lead screw 909. The fourth chain wheel 908 is structurally arranged, so that the variable pitch adjustment mechanism 9 can stop transmission, the automatic feeding device can be conveniently used for punching a plurality of workpieces at one time continuously, and the lantern ring 908B can be stopped to drive the lead screw 909 to rotate by rotating the linkage bolt 908C to be separated from the linkage slot on the surface of the lead screw 909.

The irregular gear 402 is a bevel gear with a quarter circle in shape.

The principle is as follows: the punching mechanism 1 in the invention is used for punching a workpiece after being started, the driving mechanism 4 can drive the transmission control mechanism 5 to work when being contacted with the transmission control mechanism 5 after being started, the transmission control mechanism 5 can drive the sliding frame mechanism 2 to be matched with the rack 6 to move downwards when working, the sliding frame mechanism 2 can drive the punching mechanism 1 to punch the workpiece downwards and drive the reset mechanism 3 to move when moving downwards, when the driving mechanism 4 is separated from the transmission control mechanism 5 after being started, the sliding frame mechanism 2 can reset upwards under the driving of the resetting mechanism 3, thereby drive mechanism 1 that punches a hole and return to the normal position, be convenient for cooperate automatic feeding to carry out the work of punching a hole of continuous type to a plurality of work pieces, also can carry out the work of punching a hole many times to a work piece for punch a hole comparatively level and smooth, punch a hole effectually, punch a hole efficiently.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

It is further noted that, in the present specification, relational terms such as first and second, and the like are 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a numerical control system of punching a hole, includes mechanism (1), balladeur train mechanism (2), canceling release mechanical system (3), actuating mechanism (4), transmission control mechanism (5), rack (6), perpendicular frame plate (7) and bed plate (8), its characterized in that: the punching mechanism (1) is fixedly connected to the front end of the sliding frame mechanism (2); the middle part of the punching mechanism (1) is in sliding fit with the vertical frame plate (7); the vertical frame plate (7) is fixed on the base plate (8); the rear end of the punching mechanism (1) is fixedly connected with the resetting mechanism (3); the resetting mechanism (3) is fixedly connected to the base plate (8); the punching mechanism (1) is in meshed transmission connection with the rack (6), and the rack (6) is fixed on the base plate (8); the driving mechanism (4) fixedly connected to the base plate (8) is in transmission connection with the transmission control mechanism (5); the transmission control mechanism (5) is connected to the base plate (8) in a matching way; the transmission control mechanism (5) is in transmission connection with the sliding frame mechanism (2);

the punching mechanism (1) comprises a punching motor (101), a punching drill bit (102) and a motor frame (103); an output shaft of the punching motor (101) is in transmission connection with a punching drill bit (102); the punching motor (101) is fixed on the motor frame (103); the motor frame (103) is fixed at the front end of the sliding frame mechanism (2);

the sliding frame mechanism (2) comprises a sliding frame body (201), a lifting gear (202), a rotating shaft (203), a driven bevel gear (204), a driving bevel gear (205), a sliding rotating pipe (206) and a bearing frame (207); the front end of the sliding frame body (201) is fixedly connected with the punching mechanism (1); the middle part of the sliding frame body (201) is connected in a longitudinal slide way of the vertical frame plate (7) in a sliding fit manner; the rear end of the sliding frame body (201) is connected with the rotating shaft (203) in a rotating fit manner; the middle part of the rotating shaft (203) is fixedly connected with a lifting gear (202); the lifting gear (202) is in meshed transmission connection with the teeth on the front side surface of the rack (6); one end of the rotating shaft (203) is fixedly connected with the driven bevel gear (204); the driven bevel gear (204) is in meshed connection with the driving bevel gear (205); the driving bevel gear (205) is fixed on the sliding rotating pipe (206); the inner side of the sliding rotating pipe (206) is provided with a hexagonal slideway, and the inner side of the hexagonal slideway is connected to the transmission control mechanism (5) in a matching way; the rotating shaft (203) and the sliding rotating pipe (206) are rotationally matched on the bearing frame (207); the bearing frame (207) is fixed on the sliding frame body (201); the rear end of the sliding frame body (201) is fixedly connected with the reset mechanism (3);

the carriage mechanism (2) further comprises a guide vertical shaft (208); the guide vertical shaft (208) is fixed in a longitudinal slide way of the vertical frame plate (7); the sliding frame body (201) is connected to the guide vertical shaft (208) in a sliding fit manner;

the reset mechanism (3) comprises a linkage transverse frame (301), a longitudinal screw (302), a limiting nut (303) and a reset pressure spring (304); one end of the linkage cross frame (301) is fixedly connected to the sliding frame body (201); the other end of the linkage transverse frame (301) is in sliding fit with the longitudinal screw rod (302); the lower end of the longitudinal screw (302) is fixed on the base plate (8); a reset pressure spring (304) is sleeved on the longitudinal screw (302), and the reset pressure spring (304) is positioned between the base plate (8) and the linkage cross frame (301); the longitudinal screw (302) is connected with a limit nut (303) through thread matching; the limiting nut (303) is blocked on the linkage cross frame (301);

the driving mechanism (4) comprises a servo motor (401) with a speed reducer, an irregular gear (402) and a motor bracket (403); the servo motor (401) is fixed on the base plate (8) through a motor bracket (403); the output shaft of the servo motor (401) is fixedly connected with the irregular gear (402); the irregular gear (402) is in intermittent meshing transmission connection with the transmission control mechanism (5);

the transmission control mechanism (5) comprises a rotary gear (501), a rotating shaft (502), a shaft seat (503), a friction driving wheel (504), a friction linkage disc (505), a transmission shaft (506), a hexagonal rotating rod (507) and an L-shaped rod frame (508); the irregular gear (402) is in intermittent meshing transmission connection with the rotating gear (501); the rotating gear (501) is fixed at one end of the rotating shaft (502); the rotating shaft (502) is rotatably matched on the shaft seat (503), and the shaft seat (503) is fixed on the base plate (8); the other end of the rotating shaft (502) is connected with the friction driving wheel (504) in a matching way so as to drive the friction driving wheel (504) to rotate; the friction transmission wheel (504) is vertically connected with a friction linkage disc (505) in a friction transmission way; the friction linkage disc (505) is fixed at the lower end of the transmission shaft (506); the transmission shaft (506) is rotationally matched on the base plate (8) through a bearing with a seat; the upper end of the transmission shaft (506) is fixedly connected with the six-edge rotating rod (507); the hexagonal rotating rod (507) is in running fit with the cross frame of the L-shaped rod frame (508), and the vertical frame of the L-shaped rod frame (508) is fixed on the base plate (8); the sliding rotating pipe (206) is in sliding fit with the hexagonal rotating rod (507) through a hexagonal slideway so as to rotate under the transmission of the hexagonal rotating rod (507).

2. A numerical control punch processing system according to claim 1, wherein: the device also comprises a variable pitch adjusting mechanism (9); the friction transmission wheel (504) comprises a transmission wheel body (504A) and a cylindrical sleeve (504B); the transmission wheel body (504A) is fixed on the cylindrical sleeve (504B); the cylindrical sleeve (504B) is in sliding fit on the rotating shaft (502); a groove is formed in the rotating shaft (502), and the groove is in sliding fit with a convex edge arranged on the inner side of the cylindrical sleeve (504B);

the variable-pitch adjusting mechanism (9) comprises a linkage gear (901), a first transverse shaft (902), a first chain wheel (903), a second transverse shaft (904), a T-shaped bracket (905), a second chain wheel (906), a third chain wheel (907), a fourth chain wheel (908), a lead screw (909), a variable-pitch connecting plate (910) and a side frame (911); the irregular gear (402) is in intermittent meshing transmission connection with the linkage gear (901); the linkage gear (901) is fixed at one end of the first transverse shaft (902), the other end of the first transverse shaft (902) is fixedly connected with a first chain wheel (903), the first chain wheel (903) is connected with a second chain wheel (906) fixed on the second transverse shaft (904) through chain transmission, the first transverse shaft (902) and the second transverse shaft (904) are rotationally matched on a T-shaped support (905), and the T-shaped support (905) is fixed on the base plate (8); the second transverse shaft (904) is fixedly connected with a third chain wheel (907), the third chain wheel (907) is connected with a fourth chain wheel (908) through chain transmission, and the fourth chain wheel (908) is fixedly connected to the lead screw (909); two ends of the screw rod (909) are respectively connected with one side frame (911) in a rotating fit mode, and the two side frames (911) are relatively fixed on the base plate (8); the middle part of the lead screw (909) is connected with one end of the variable pitch link plate (910) through thread transmission; the other end of the variable pitch link plate (910) is rotatably connected to the cylindrical sleeve (504B).

3. The numerical control punching system according to claim 2, wherein: the fourth sprocket (908) comprises a sprocket body (908A), a collar (908B), and a linkage bolt (908C); the third chain wheel (907) is connected with the chain wheel body (908A) through chain transmission; the sprocket body (908A) and the collar (908B) are both rotationally fitted on the lead screw (909); the collar (908B) is fixed to one end of the sprocket body (908A); the collar (908B) is connected with the linkage bolt (908C) through thread matching; the inner side of the linkage bolt (908C) is inserted into a linkage slot on the surface of the lead screw (909).

4. A numerical control punch processing system according to claim 2, wherein: the irregular gear (402) is a bevel gear with a quarter circle in shape.