CN112404493A - High-precision punching device for machining shaft center hole - Google Patents
High-precision punching device for machining shaft center hole Download PDFInfo
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- CN112404493A CN112404493A CN202011071579.2A CN202011071579A CN112404493A CN 112404493 A CN112404493 A CN 112404493A CN 202011071579 A CN202011071579 A CN 202011071579A CN 112404493 A CN112404493 A CN 112404493A
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- connecting rod
- axis
- sliding mechanism
- synchronous sliding
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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Abstract
The invention relates to the technical field of machining, in particular to a high-precision punching device for machining a shaft center hole, which comprises a rotating mechanism, a synchronous sliding mechanism, a tray, a clamping block and a punching mechanism, wherein the rotating mechanism is arranged on the tray; the rotating mechanism is arranged on the rack; the synchronous sliding mechanism is arranged on the rotating mechanism; the tray is arranged at the upper end of the synchronous sliding mechanism and is positioned below the clamping block; the three clamping blocks are arranged, have the same distance with the axis of the synchronous sliding mechanism, form one hundred twenty degrees included angles with each other, and the working ends face the axis of the synchronous sliding mechanism and can be installed on the synchronous sliding mechanism in a way of approaching or departing from the axis of the synchronous sliding mechanism; the perforating machine frame is arranged above the synchronous sliding mechanism, and the axis of the working end is collinear with the axis of the synchronous sliding mechanism; the scheme has the advantages of high punching precision, accurate positioning and stable structure.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a high-precision punching device for machining a shaft center hole.
Background
Machining is a process of changing the external dimension or performance of a workpiece by a mechanical device, and can be divided into cutting machining and pressure machining according to the difference of machining modes, wherein the mechanical part is composed of a plurality of surfaces, the relative relation of the surfaces of the part is researched, a reference is necessarily determined, the reference can be divided into a design reference and a process reference according to the different functions of the reference, the reference used for positioning the workpiece in machining is called a positioning reference and used as the surface of the positioning reference, only the surface of an unprocessed blank can be selected in the first procedure, the positioning surface is called a coarse reference, and the machined surface can be used as the positioning reference in the subsequent procedures, and the positioning surface is called a fine reference.
The processing device of the current axle center hole is particularly important in the mechanical processing process, wherein in the existing processing device of the axle center hole, the clamping is unstable, and the phenomena of the eccentricity of the axle center hole and the like are easily caused, so that the processing device of the high-precision axle center hole is provided to solve the problems.
Disclosure of Invention
In order to solve the technical problem, the high-precision punching device for machining the shaft center hole is provided, the technical scheme solves the problems, the three clamping blocks synchronously clamp a workpiece in the middle through the synchronous sliding mechanism, and the device is accurate in positioning and stable in structure.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a high-precision punching device for machining a shaft center hole is characterized by comprising a rotating mechanism, a synchronous sliding mechanism, a tray, a clamping block and a punching mechanism;
the rotating mechanism is arranged on the rack and used for driving the synchronous sliding mechanism to rotate;
the synchronous sliding mechanism is arranged on the rotating mechanism and used for driving the three clamping blocks to move close to or away from each other;
the tray is arranged at the upper end of the synchronous sliding mechanism, is positioned below the clamping block and is used for supporting the workpiece;
the three clamping blocks are arranged, have the same distance with the axis of the synchronous sliding mechanism and form one hundred twenty degrees included angles with each other, and the working ends face the axis of the synchronous sliding mechanism and can be installed on the synchronous sliding mechanism in a way of approaching or departing from the axis of the synchronous sliding mechanism so as to clamp the peripheral wall of the workpiece;
and the punching mechanism is erected above the synchronous sliding mechanism, and the axis of the working end is collinear with the axis of the synchronous sliding mechanism and is used for punching the workpiece.
Preferably, the device also comprises a roundness detection mechanism; the roundness detection mechanism is arranged on one side of the synchronous sliding mechanism in a way of moving towards or away from the synchronous sliding mechanism, and the working end of the roundness detection mechanism is arranged towards the axial direction of the synchronous sliding mechanism.
Preferably, the synchronous sliding mechanism comprises a mounting seat, a guide groove, a first supporting block, a second supporting block, a connecting block, a first connecting rod, a second connecting rod, a third connecting rod, a driving assembly, a first guide rod and a second guide rod;
the mounting seat is mounted on the rotating mechanism, and the axis of the mounting seat is collinear with the axis of a rotating shaft of the rotating mechanism;
the three guide grooves are formed in the upper end of the mounting seat, arranged around the axis of the mounting seat, arranged at an angle of one hundred twenty degrees and used for guiding the connecting block to slide;
the first supporting block is arranged in the center of the mounting seat;
the number of the second supporting blocks is three, the second supporting blocks are arranged around the axis of the first supporting block, form included angles of one hundred twenty degrees with each other and are positioned on the angular bisector of the guide groove;
the bottom of each connecting block is in sliding connection with the corresponding guide groove to form a triangular structure, and the top of each connecting block is fixedly connected with the bottom end of the corresponding clamping block to drive the clamping blocks to move;
the first connecting rod, the second connecting rod and the third connecting rod are respectively arranged on three sides of a triangle formed by the connecting blocks, two ends of the first connecting rod, the second connecting rod and the third connecting rod are in clearance fit with the two connecting blocks on the sides, the first connecting rod, the second connecting rod and the third connecting rod form a triangular frame structure in a overlooking state, and the first connecting rod, the second connecting rod and the third connecting rod are arranged in a staggered mode in the axial direction of the mounting base so that the three connecting blocks are;
the two ends of the driving component are respectively and rotatably connected with any one of the three second supporting blocks and the first supporting block, and are in threaded connection with the central position of the first connecting rod so as to drive the first connecting rod to be close to or far away from the axis of the mounting seat;
two ends of the first guide rod are respectively fixedly connected with one of the other two of the second supporting blocks and the first supporting block, are in clearance fit with the central position of the second connecting rod and are used for guiding and limiting the movement direction of the second connecting rod;
and two ends of the second guide rod are respectively fixedly connected with the last one of the second supporting blocks and the first supporting block, form a one-hundred-twenty-degree included angle with the first guide rod, are in clearance fit with the central position of the third connecting rod, and are used for guiding and limiting the movement direction of the third connecting rod.
Preferably, the synchronous sliding mechanism further comprises a limiting block; the limiting blocks are detachably arranged at two ends of the first connecting rod, the second connecting rod and the third connecting rod and used for preventing the first connecting rod, the second connecting rod and the third connecting rod from sliding out of the connecting blocks.
Preferably, the connecting block is provided with a first through hole, a second through hole and a third through hole; the cross section of the connecting block is of a hexagonal structure, the first through hole, the second through hole and the third through hole are distributed along the axis of the connecting block, the first through hole, the second through hole and the third through hole all pass through the axis of the connecting block and are perpendicular to the axis of the connecting block, in a overlooking state, the first through hole, the second through hole and the third through hole form sixty-degree included angles with each other, and the first through hole, the second through hole and the third through hole are in clearance fit with the first connecting rod, the second connecting rod and the third connecting rod.
Preferably, the driving assembly comprises a lead screw and a rotary driver;
the two ends of the screw rod are respectively and rotatably connected with the second supporting block and the first supporting block, and are in threaded connection with the central position of the first connecting rod to drive the first connecting rod to move close to or far away from the axis of the mounting seat;
and the rotary driver is arranged on the second supporting block, and the output shaft is rotationally connected with one end of the screw rod and used for driving the screw rod to rotate.
Preferably, the tray is provided with a sliding chute; the sliding chutes are three, are arranged at the top end of the tray, are arranged at an included angle of one hundred twenty degrees and are in sliding connection with the bottom ends of the clamping blocks.
Preferably, the clamping block comprises a fixed seat and a clamping part;
the fixing seat is detachably arranged on the working end of the synchronous sliding mechanism and used for fixing the clamping part;
the clamping part is of a V-shaped structure, and the opening of the clamping part faces the axis of the synchronous sliding mechanism and is used for clamping the outer wall of the workpiece.
Preferably, the punching mechanism comprises a portal frame, a lifting assembly and an electric drill;
the portal frame is erected above the synchronous sliding mechanism and used for installing the lifting assembly;
the lifting assembly is arranged below the portal frame in a manner of moving along the vertical direction and is used for driving the electric drill to lift;
the electric drill is installed at the bottom end of the lifting assembly, is arranged towards the synchronous sliding mechanism, and is used for drilling an axle center hole on the workpiece, and the axis of the electric drill is collinear with the axis of the synchronous sliding mechanism.
Preferably, the lifting assembly comprises a lifting frame, a guide post and a linear driver;
the lifting frame is movably arranged on the portal frame along the vertical direction, and the bottom of the lifting frame is fixedly connected with the electric drill;
the four guide posts are vertically arranged at the top end of the lifting frame, are in clearance fit with the top of the portal frame and are arranged around the axis of the lifting frame;
the linear driver is installed on the top end of the portal frame, and the output shaft is fixedly connected with the top end of the lifting frame and used for driving the lifting frame to lift.
Compared with the prior art, the invention has the beneficial effects that:
1. the synchronous sliding mechanism is used for synchronously clamping the workpiece in the middle by the three clamping blocks, the positioning is accurate, specifically, the controller sends a signal to the driving assembly, and the driving assembly drives the first connecting rod to move close to or far away from the axis of the mounting seat after receiving the signal. Under the connecting action of the connecting blocks, the second connecting rod and the third connecting rod are close to or far away from the axis of the mounting seat along with the movement of the first connecting rod. The first guide rod and the second guide rod are respectively used for preventing the second connecting rod and the third connecting rod from sliding along the length direction of the second connecting rod and the third connecting rod, so that the structure is kept stable. The first connecting rod, the second connecting rod and the third connecting rod are arranged in a staggered mode along the axial direction of the mounting seat, and mutual interference in the sliding process can be effectively prevented. The guide way inboard is seted up with connecting block bottom sliding connection's groove, mutually supports with the slider on the connecting block bottom lateral wall. Under the action of the first connecting rod, the second connecting rod and the third connecting rod, the three connecting blocks synchronously approach or depart from the axis of the synchronous sliding mechanism, so that the clamping blocks are driven to move;
2. connect head rod, second connecting rod, third connecting rod through the connecting block, can prevent head rod, second connecting rod and third connecting rod mutual interference, stable in structure, it is concrete, set up first perforating hole, second perforating hole and third perforating hole three layer construction along the axis direction on the connecting block, carry out the layering to head rod, second connecting rod and third connecting rod respectively, make its motion in-process can not take place to disturb each other.
3. The centering effect of the workpiece is further monitored by the roundness detection mechanism, so that the accuracy of the shaft center hole is further improved, and particularly, the workpiece is driven by the rotating mechanism to rotate around the axis by the clamping block. The controller controls the working end of the roundness detection mechanism to abut against the outer wall of the workpiece, and then detects the centering effect of the workpiece as positioning assistance and feedback to prevent deviation.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a partial perspective view of the first embodiment of the present invention;
FIG. 4 is an exploded perspective view of FIG. 3;
FIG. 5 is a perspective view of the synchronous slide mechanism of the present invention;
FIG. 6 is a top view of the synchronous slide mechanism of the present invention;
FIG. 7 is a partial perspective view of the second embodiment of the present invention;
FIG. 8 is a perspective view of a connecting block of the synchronous slide mechanism of the present invention;
FIG. 9 is a perspective view of the clamping block of the present invention;
FIG. 10 is a perspective view of the hole punch mechanism of the present invention.
The reference numbers in the figures are:
1-a rotating mechanism;
2-a synchronous sliding mechanism; 2 a-a mounting seat; 2 b-a guide groove; 2 c-a first support block; 2 d-a second support block; 2 e-connecting block; 2e1 — first through hole; 2e 2-second through hole; 2e 3-third through hole; 2 f-first connecting rod; 2 g-a second connecting rod; 2 h-a third connecting rod; 2 i-a drive assembly; 2i1 — lead screw; 2i2 — rotational drive; 2 j-a first guide bar; 2 k-a second guide bar; 2 l-a limiting block;
3-a tray; 3 a-a chute;
4-a clamping block; 4 a-a fixed seat; 4 b-a clamping portion;
5-a punching mechanism; 5 a-a portal frame; 5 b-a lifting assembly; 5b 1-crane; 5b 2-guide post; 5b 3-Linear drive; 5 c-electric drill.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in fig. 1 and 4, a high-precision punching device for machining a shaft center hole comprises a rotating mechanism 1, a synchronous sliding mechanism 2, a tray 3, a clamping block 4 and a punching mechanism 5;
the rotating mechanism 1 is arranged on the rack and used for driving the synchronous sliding mechanism 2 to rotate;
the synchronous sliding mechanism 2 is arranged on the rotating mechanism 1 and used for driving the three clamping blocks 4 to move close to or away from each other;
the tray 3 is arranged at the upper end of the synchronous sliding mechanism 2, is positioned below the clamping block 4 and is used for supporting a workpiece;
the three clamping blocks 4 are arranged, have the same distance with the axis of the synchronous sliding mechanism 2, form one hundred twenty degrees included angles with each other, have working ends facing the axis of the synchronous sliding mechanism 2, can be installed on the synchronous sliding mechanism 2 in a way of approaching or departing from the axis of the synchronous sliding mechanism 2, and are used for clamping the peripheral wall of a workpiece;
and the punching mechanism 5 is erected above the synchronous sliding mechanism 2, and the axis of the working end is collinear with the axis of the synchronous sliding mechanism 2 and is used for punching a workpiece.
The rotating mechanism 1 is an electric turntable. The rotating mechanism 1, the synchronous sliding mechanism 2 and the punching mechanism 5 are all electrically connected with the controller. The operator places the work piece on the pallet 3 in the middle of the three gripper blocks 4. The staff sends the signal through the controller and gives synchronous slide mechanism 2, and synchronous slide mechanism 2 receives the signal back drive three and presss from both sides tight piece 4 and to 2 axis departments of synchronous slide mechanism motion, presss from both sides the outer wall of tight axis body work piece then, makes the work piece fixed between two parties. Then the controller sends a signal to the punching mechanism 5, and the working end of the punching mechanism 5 moves vertically downwards to punch the workpiece. The controller makes synchronous sliding mechanism 2 rotate around its axis through controlling rotary mechanism 1, drives clamp 4 and takes the work piece coaxial rotation together then, cooperates punching mechanism 5 to punch the work piece.
The device also comprises a roundness detection mechanism; the roundness detection mechanism is arranged on one side of the synchronous sliding mechanism 2 in a manner of moving towards or away from the synchronous sliding mechanism 2, and the working end is arranged towards the axial direction of the synchronous sliding mechanism 2.
The roundness detection mechanism is electrically connected to a controller, not shown in the figure. The roundness detection mechanism is a dial indicator arranged on the horizontal moving device. The rotation mechanism 1 drives the gripper block 4 to rotate about the axis with the workpiece. The controller controls the working end of the roundness detection mechanism to abut against the outer wall of the workpiece, and then detects the centering effect of the workpiece as positioning assistance and feedback to prevent deviation.
As shown in fig. 5 to 7, the synchronous sliding mechanism 2 includes a mounting seat 2a, a guide groove 2b, a first support block 2c, a second support block 2d, a connection block 2e, a first connection rod 2f, a second connection rod 2g, a third connection rod 2h, a driving assembly 2i, a first guide rod 2j, and a second guide rod 2 k;
the mounting seat 2a is mounted on the rotating mechanism 1, and the axis of the mounting seat is collinear with the axis of a rotating shaft of the rotating mechanism 1;
the three guide grooves 2b are formed in the upper end of the mounting seat 2a, arranged around the axis of the mounting seat 2a, arranged at an angle of one hundred twenty degrees with each other and used for guiding the connecting block 2e to slide;
a first support block 2c provided at the center of the mounting base 2 a;
the number of the second supporting blocks 2d is three, the second supporting blocks are arranged around the axis of the first supporting block 2c, form one hundred twenty degrees included angles with each other and are positioned on the angular bisector of the guide groove 2 b;
the bottom of each connecting block 2e is connected with the corresponding guide groove 2b in a sliding mode to form a triangular structure, and the top of each connecting block is fixedly connected with the bottom end of the corresponding clamping block 4 to drive the clamping block 4 to move;
the first connecting rod 2f, the second connecting rod 2g and the third connecting rod 2h are respectively arranged on three sides of a triangle formed by the connecting blocks 2e, two ends of the triangle are in clearance fit with the two connecting blocks 2e on the sides, the three parts form a triangular frame structure in a overlook state, and the three parts are arranged in a staggered mode in the axial direction of the mounting seat 2a so that the three connecting blocks 2e can be synchronously close to or far away from the axial line of the synchronous sliding mechanism 2;
two ends of the driving component 2i are respectively rotatably connected with any one of the three second supporting blocks 2d and the first supporting block 2c, and are in threaded connection with the central position of the first connecting rod 2f to drive the first connecting rod 2f to be close to or far away from the axis of the mounting seat 2 a;
two ends of the first guide rod 2j are respectively fixedly connected with one of the other two of the second supporting blocks 2d and the first supporting block 2c, and are in clearance fit with the central position of the second connecting rod 2g so as to guide and limit the moving direction of the second connecting rod 2 g;
the two ends of the second guide rod 2k are respectively fixedly connected with the last of the second supporting blocks 2d and the first supporting block 2c, form a one hundred twenty degree included angle with the first guide rod 2j, and are in clearance fit with the central position of the third connecting rod 2h to guide and limit the movement direction of the third connecting rod 2 h.
The driving assembly 2i is electrically connected to the controller. The controller sends a signal to the driving component 2i, and the driving component 2i receives the signal and drives the first connecting rod 2f to move close to or far away from the axis of the mounting seat 2 a. Under the connecting action of the connecting block 2e, the second connecting rod 2g and the third connecting rod 2h are close to or far away from the axis of the mounting seat 2a together with the movement of the first connecting rod 2 f. The first guide bar 2j and the second guide bar 2k are used to prevent the second connecting bar 2g and the third connecting bar 2h from sliding along the length direction thereof, respectively, so that the structure is kept stable. First connecting rod 2f, second connecting rod 2g and third connecting rod 2h set up along mount pad 2a axis direction is crisscross, can effectively prevent to slide in-process mutual interference. The guide groove 2b is provided with a groove which is connected with the bottom end of the connecting block 2e in a sliding manner and is matched with the sliding block on the side wall of the bottom end of the connecting block 2 e. Under the action of the first connecting rod 2f, the second connecting rod 2g and the third connecting rod 2h, the three connecting blocks 2e synchronously approach or depart from the axis of the synchronous sliding mechanism 2, so that the clamping block 4 is driven to move. The connecting block 2e is a working end of the synchronous sliding mechanism 2.
As shown in fig. 5, the synchronous slide mechanism 2 further includes a stopper block 2 l; stopper 2l detachably sets up at the both ends of head rod 2f, second connecting rod 2g and third connecting rod 2h for prevent head rod 2f, second connecting rod 2g, third connecting rod 2h roll-off connecting block 2 e.
The two ends of the first connecting rod 2f, the second connecting rod 2g and the third connecting rod 2h are provided with a pair of limiting blocks 2 l. At least one of the pair of limiting blocks 2l is detachably connected with the first connecting rod 2f, the second connecting rod 2g and the third connecting rod 2h so as to be assembled and disassembled.
As shown in fig. 8, the joint block 2e is provided with a first through hole 2e1, a second through hole 2e2, and a third through hole 2e 3; the section of the connecting block 2e is of a hexagonal structure, the first through hole 2e1, the second through hole 2e2 and the third through hole 2e3 are distributed along the axis of the connecting block 2e, the first through hole 2e1, the second through hole 2e2 and the third through hole 2e3 all pass through the axis of the connecting block 2e and are perpendicular to the axis of the connecting block 2e, in a overlooking state, the first through hole 2e1, the second through hole 2e2 and the third through hole 2e3 form a sixty-degree included angle, and the first through hole 2e1, the second through hole 2e2 and the third through hole 2e3 are in clearance fit with the first connecting rod 2f, the second connecting rod 2g and the third connecting rod 2 h.
The first through hole 2e1, the second through hole 2e2, and the third through hole 2e3 allow the first connecting rod 2f, the second connecting rod 2g, and the third connecting rod 2h to form a triangular frame structure, and the first through hole 2e1, the second through hole 2e2, and the third through hole 2e3 are layered with each other, so that the first connecting rod 2f, the second connecting rod 2g, and the third connecting rod 2h do not interfere with each other.
As shown in fig. 6, the driving assembly 2i includes a lead screw 2i1 and a rotary driver 2i 2;
two ends of the screw rod 2i1 are respectively rotatably connected with the second supporting block 2d and the first supporting block 2c, and are in threaded connection with the central position of the first connecting rod 2f to drive the first connecting rod 2f to move close to or far away from the axis of the mounting seat 2 a;
and the rotary driver 2i2 is mounted on the second supporting block 2d, and the output shaft is rotatably connected with one end of the lead screw 2i1 and is used for driving the lead screw 2i1 to rotate.
The rotary actuator 2i2 is a servo motor electrically connected to the controller. The controller sends a signal to the rotary driver 2i2, and the rotary driver 2i2 receives the signal and drives the lead screw 2i1 to rotate, so as to drive the first connecting rod 2f to move close to or away from the axis of the mounting seat 2 a.
As shown in fig. 3, the tray 3 is provided with a chute 3 a; the sliding grooves 3a are three, are arranged at the top end of the tray 3, are arranged at an included angle of one hundred and twenty degrees and are in sliding connection with the bottom ends of the clamping blocks 4.
Through set up spout 3a on tray 3, provide the space for synchronous sliding mechanism 2 and the connection of pressing from both sides tight piece 4 on the one hand, make synchronous sliding mechanism 2 can drive and press from both sides tight 4 main part of piece and move in tray 3 upper end, provide the guide effect to the motion of tight piece 4 in addition, make the structure more stable.
As shown in fig. 9, the clamping block 4 includes a fixing seat 4a and a clamping portion 4 b;
the fixed seat 4a is detachably arranged on the working end of the synchronous sliding mechanism 2 and used for fixing the clamping part 4 b;
the clamping portion 4b is of a V-shaped structure and opens toward the axis of the synchronous sliding mechanism 2 to clamp the outer wall of the workpiece.
The fixed seat 4a is fixedly connected with the working end of the synchronous sliding mechanism 2 through a bolt, and can be conveniently detached and installed. The synchronous slide mechanism 2 synchronously drives the three clamping portions 4b toward or away from each other, thereby clamping the workpiece centrally.
As shown in fig. 2, the punching mechanism 5 comprises a portal frame 5a, a lifting assembly 5b and an electric drill 5 c;
the portal frame 5a is erected above the synchronous sliding mechanism 2 and used for installing a lifting component 5 b;
the lifting component 5b is arranged below the portal frame 5a in a manner of moving along the vertical direction and is used for driving the electric drill 5c to lift;
and the electric drill 5c is arranged at the bottom end of the lifting component 5b, is arranged towards the synchronous sliding mechanism 2, and is used for drilling a shaft center hole on the workpiece, and the axis of the electric drill is collinear with the axis of the synchronous sliding mechanism 2.
The lifting assembly 5b and the electric drill 5c are electrically connected with the controller. When the clamping block 4 fixes the workpiece in the center, the axis of the workpiece is collinear with the axis of the drill 5 c. The controller sends a signal to the lifting assembly 5b, and the lifting assembly 5b drives the lifting assembly 5b to drive the electric drill 5c to move towards the workpiece after receiving the signal. Meanwhile, the controller sends a signal to the electric drill 5c, and the electric drill 5c drills a workpiece after receiving the signal to form an axis hole.
As shown in fig. 10, the lifting assembly 5b comprises a lifting frame 5b1, a guide post 5b2 and a linear actuator 5b 3;
the lifting frame 5b1 is arranged on the portal frame 5a in a way of moving along the vertical direction, and the bottom of the lifting frame is fixedly connected with the electric drill 5 c;
the four guide posts 5b2 are vertically arranged at the top end of the lifting frame 5b1, are in clearance fit with the top of the portal frame 5a and are arranged around the axis of the lifting frame 5b 1;
and the linear driver 5b3 is installed at the top end of the portal frame 5a, and the output shaft is fixedly connected with the top end of the lifting frame 5b1 and used for driving the lifting frame 5b1 to lift.
The linear actuator 5b3 is an electric push rod electrically connected to the controller. The controller sends a signal to the linear driver 5b3, and the linear driver 5b3 receives the signal and drives the lifting rack 5b1 to move vertically on the portal frame 5a, so that the electric drill 5c is driven to lift. The lift assembly 5b prevents circumferential deflection of the lift 5b 1.
The working principle of the invention is as follows:
the device realizes the functions of the invention through the following steps, thereby solving the technical problems provided by the invention:
step one, a worker places a workpiece on the tray 3 and between the three clamping blocks 4.
And step two, the worker sends a signal to the synchronous sliding mechanism 2 through the controller, the synchronous sliding mechanism 2 receives the signal and then drives the three clamping blocks 4 to move towards the axis of the synchronous sliding mechanism 2, and then the outer wall of the shaft body workpiece is clamped, so that the workpiece is fixed in the middle.
And step three, the controller sends a signal to the punching mechanism 5, and the working end of the punching mechanism 5 vertically moves downwards to punch the workpiece.
And fourthly, the controller controls the rotating mechanism 1 to enable the synchronous sliding mechanism 2 to rotate around the axis of the synchronous sliding mechanism, then the clamping block 4 is driven to drive the workpiece to coaxially rotate together, and the workpiece is punched by matching with the punching mechanism 5.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A high-precision punching device for machining a shaft center hole is characterized by comprising a rotating mechanism (1), a synchronous sliding mechanism (2), a tray (3), a clamping block (4) and a punching mechanism (5);
the rotating mechanism (1) is arranged on the rack and used for driving the synchronous sliding mechanism (2) to rotate;
the synchronous sliding mechanism (2) is arranged on the rotating mechanism (1) and is used for driving the three clamping blocks (4) to approach or depart from each other;
the tray (3) is arranged at the upper end of the synchronous sliding mechanism (2), is positioned below the clamping block (4) and is used for supporting a workpiece;
the three clamping blocks (4) are arranged, have the same distance with the axis of the synchronous sliding mechanism (2), form one hundred twenty degrees included angles with each other, have working ends facing the axis of the synchronous sliding mechanism (2), can be installed on the synchronous sliding mechanism (2) in a way of approaching or departing from the axis of the synchronous sliding mechanism (2), and are used for clamping the peripheral wall of a workpiece;
and the punching mechanism (5) is erected above the synchronous sliding mechanism (2), and the axis of the working end is collinear with the axis of the synchronous sliding mechanism (2) and is used for punching a workpiece.
2. The high-precision punching device for machining the shaft center hole is characterized by further comprising a roundness detection mechanism; the roundness detection mechanism is arranged on one side of the synchronous sliding mechanism (2) in a manner of moving towards or away from the synchronous sliding mechanism (2), and the working end is arranged towards the axial direction of the synchronous sliding mechanism (2).
3. The high-precision punching device for machining the axle center hole is characterized in that the synchronous sliding mechanism (2) comprises a mounting seat (2a), a guide groove (2b), a first supporting block (2c), a second supporting block (2d), a connecting block (2e), a first connecting rod (2f), a second connecting rod (2g), a third connecting rod (2h), a driving component (2i), a first guide rod (2j) and a second guide rod (2 k);
the mounting seat (2a) is mounted on the rotating mechanism (1), and the axis of the mounting seat is collinear with the axis of a rotating shaft of the rotating mechanism (1);
the three guide grooves (2b) are formed in the upper end of the mounting seat (2a), arranged around the axis of the mounting seat (2a), arranged at an angle of one hundred twenty degrees and used for guiding the connecting block (2e) to slide;
a first support block (2c) arranged at the center of the mounting seat (2 a);
the number of the second supporting blocks (2d) is three, the second supporting blocks are arranged around the axis of the first supporting block (2c), form included angles of one hundred twenty degrees with each other and are positioned on the angular bisector of the guide groove (2 b);
the three connecting blocks (2e) are provided, the bottoms of the three connecting blocks are slidably connected with the guide grooves (2b) to form a triangular structure, and the tops of the three connecting blocks are fixedly connected with the bottom ends of the clamping blocks (4) to drive the clamping blocks (4) to move;
the first connecting rod (2f), the second connecting rod (2g) and the third connecting rod (2h) are respectively arranged on three sides of a triangle formed by the connecting blocks (2e), two ends of the first connecting rod are in clearance fit with the two connecting blocks (2e) on the sides, the first connecting rod, the second connecting rod and the third connecting rod form a triangular frame structure in a overlook state, and the first connecting rod, the second connecting rod and the third connecting rod are arranged in a staggered mode in the axial direction of the mounting seat (2a) so that the three connecting blocks (2e) are synchronously close to or far away from the axial line of;
two ends of the driving component (2i) are respectively and rotatably connected with any one of the three second supporting blocks (2d) and the first supporting block (2c), and are in threaded connection with the central position of the first connecting rod (2f) so as to drive the first connecting rod (2f) to be close to or far away from the axis of the mounting seat (2 a);
two ends of the first guide rod (2j) are respectively fixedly connected with one of the other two of the second supporting blocks (2d) and the first supporting block (2c), and are in clearance fit with the central position of the second connecting rod (2g) to guide and limit the moving direction of the second connecting rod (2 g);
and two ends of the second guide rod (2k) are respectively fixedly connected with the last of the second supporting blocks (2d) and the first supporting block (2c), form a one-hundred-twenty degree included angle with the first guide rod (2j), and are in clearance fit with the central position of the third connecting rod (2h) so as to guide and limit the movement direction of the third connecting rod (2 h).
4. The high-precision punching device for the axle center hole machining according to claim 1, wherein the synchronous sliding mechanism (2) further comprises a limiting block (2 l); stopper (2l) detachably sets up at the both ends of head rod (2f), second connecting rod (2g) and third connecting rod (2h) for prevent head rod (2f), second connecting rod (2g), third connecting rod (2h) roll-off connecting block (2 e).
5. A high-precision punching apparatus for axle center hole machining according to claim 3, characterized in that the joint block (2e) is provided with a first through hole (2e1), a second through hole (2e2) and a third through hole (2e 3); the cross section of the connecting block (2e) is of a hexagonal structure, the first through hole (2e1), the second through hole (2e2) and the third through hole (2e3) are distributed along the axis of the connecting block (2e), the first through hole (2e1), the second through hole (2e2) and the third through hole (2e3) all pass through the axis of the connecting block (2e) and are perpendicular to the axis of the connecting block (2e), in a overlooking state, the first through hole (2e1), the second through hole (2e2) and the third through hole (2e3) form sixty-degree included angles with each other, and the first through hole (2e1), the second through hole (2e2) and the third through hole (2e3) are in clearance fit with the first connecting rod (2f), the second connecting rod (2g) and the third connecting rod (2 h).
6. A high-precision punching device for axle center hole machining according to claim 3, characterized in that the driving assembly (2i) comprises a lead screw (2i1) and a rotary driver (2i 2);
two ends of the lead screw (2i1) are respectively rotatably connected with the second supporting block (2d) and the first supporting block (2c), and are in threaded connection with the central position of the first connecting rod (2f) so as to drive the first connecting rod (2f) to move close to or far away from the axis of the mounting seat (2 a);
and the rotary driver (2i2) is arranged on the second supporting block (2d), and the output shaft is rotationally connected with one end of the lead screw (2i1) and is used for driving the lead screw (2i1) to rotate.
7. The high-precision punching device for machining the shaft center hole is characterized in that a sliding groove (3a) is formed in the tray (3); the three sliding grooves (3a) are arranged at the top end of the tray (3) and are arranged at an included angle of one hundred and twenty degrees with each other and are connected with the bottom end of the clamping block (4) in a sliding manner.
8. The high-precision punching device for the axle center hole machining is characterized in that the clamping block (4) comprises a fixed seat (4a) and a clamping part (4 b);
the fixed seat (4a) is detachably arranged on the working end of the synchronous sliding mechanism (2) and is used for fixing the clamping part (4 b);
the clamping part (4b) is of a V-shaped structure, and the opening of the clamping part faces to the axis of the synchronous sliding mechanism (2) and is used for clamping the outer wall of the workpiece.
9. The high-precision punching device for the axle center hole machining is characterized in that the punching mechanism (5) comprises a portal frame (5a), a lifting assembly (5b) and an electric drill (5 c);
a portal frame (5a) which is erected above the synchronous sliding mechanism (2) and is used for installing a lifting component (5 b);
the lifting assembly (5b) is arranged below the portal frame (5a) in a vertically movable manner and is used for driving the electric drill (5c) to lift;
and the electric drill (5c) is arranged at the bottom end of the lifting component (5b) and is arranged towards the synchronous sliding mechanism (2), and the axis of the electric drill is collinear with the axis of the synchronous sliding mechanism (2) and used for drilling an axis hole on the workpiece.
10. The high-precision punching device for the axle center hole machining is characterized in that the lifting assembly (5b) comprises a lifting frame (5b1), a guide post (5b2) and a linear driver (5b 3);
the lifting rack (5b1) is arranged on the portal frame (5a) in a way of moving along the vertical direction, and the bottom of the lifting rack is fixedly connected with the electric drill (5 c);
the four guide posts (5b2) are vertically arranged at the top end of the lifting frame (5b1), are in clearance fit with the top of the portal frame (5a), and are arranged around the axis of the lifting frame (5b 1);
the linear driver (5b3) is installed at the top end of the portal frame (5a), and the output shaft is fixedly connected with the top end of the lifting frame (5b1) and used for driving the lifting frame (5b1) to lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071579.2A CN112404493A (en) | 2020-10-09 | 2020-10-09 | High-precision punching device for machining shaft center hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071579.2A CN112404493A (en) | 2020-10-09 | 2020-10-09 | High-precision punching device for machining shaft center hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112404493A true CN112404493A (en) | 2021-02-26 |
Family
ID=74854700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011071579.2A Withdrawn CN112404493A (en) | 2020-10-09 | 2020-10-09 | High-precision punching device for machining shaft center hole |
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| Country | Link |
|---|---|
| CN (1) | CN112404493A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113199423A (en) * | 2021-05-19 | 2021-08-03 | 博众精工科技股份有限公司 | Synchronous positioning mechanism |
-
2020
- 2020-10-09 CN CN202011071579.2A patent/CN112404493A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113199423A (en) * | 2021-05-19 | 2021-08-03 | 博众精工科技股份有限公司 | Synchronous positioning mechanism |
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Application publication date: 20210226 |