CN112775703A - Numerical control drill four-line rail vertical ram power head - Google Patents
Numerical control drill four-line rail vertical ram power head Download PDFInfo
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- CN112775703A CN112775703A CN202011637417.0A CN202011637417A CN112775703A CN 112775703 A CN112775703 A CN 112775703A CN 202011637417 A CN202011637417 A CN 202011637417A CN 112775703 A CN112775703 A CN 112775703A
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000010009 beating Methods 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 16
- 230000006872 improvement Effects 0.000 description 9
- 210000000078 claw Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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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
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
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Abstract
The invention discloses a numerical control drill four-line rail vertical ram power head, which relates to the technical field of numerical control drilling machines and comprises a stepped saddle, a stepped ram spindle box, a motor support and a sliding part which are sequentially connected, wherein a first driving mechanism and a lead screw which are connected penetrate through the stepped saddle, the stepped ram spindle box can slide up and down on the stepped saddle through the sliding part which is not on the same plane, and the lead screw penetrates through a ball nut connected with the stepped ram spindle box; a rotating shaft with a second synchronous wheel is vertically arranged in the box of the main spindle box of the stepped ram, and the second synchronous wheel is connected with the first synchronous wheel on the output shaft of the asynchronous servo spindle motor through a synchronous belt; through above-mentioned novel structure, when the drill bit moves drilling and adds man-hour, stability greatly increased can process the work piece of high strength and high rigidity, moves very steadily, has avoided the drill bit to shake easily and lead to the problem that drilling is not up to standard and the cutter damages.
Description
Technical Field
The invention relates to the technical field of numerical control drilling machines, in particular to a four-line rail vertical ram power head of a numerical control drill.
Background
The power head, also called a power tool apron, can realize main movement and feed movement and is provided with a power part for automatic workpiece circulation. The basic principle is that a motor drives a gear speed change mechanism, functions of boring, milling, drilling and the like can be realized, and some variable speed transmission mechanisms are provided with guide rails and can do linear motion in a small range.
At present, the frame structure of the drilling power head of the traditional numerical control drilling machine generally comprises a transverse saddle, a longitudinal ram and a main shaft box, wherein the transverse saddle, the longitudinal ram and the main shaft box are connected through bolts, and the structure ensures that the bolts are easily loosened due to high-frequency vibration generated in the drilling process of the numerical control drilling machine, and the frame arranged by the structure is not high in rigidity and is not stable during drilling, so that the roundness of the drilled hole is unqualified, the roughness is poor, in addition, the service life of a drill bit blade is reduced due to the vibration of the power head and the vibration of a cutter, the stability of equipment is poor, and certain potential safety hazards exist.
The related structure of the numerical control drilling machine is improved on the basis of the traditional structure, the saddle is erected and is arranged with the main spindle box to be in a structure of two linear guide rails and a sliding block in sliding connection, and the stability is greatly improved compared with that of the conventional numerical control drilling machine power head.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide a numerical control drill four-line rail vertical ram power head.
In order to solve the technical problems, the invention adopts the following technical scheme: a numerical control drill four-line rail vertical ram power head comprises a stepped saddle, a stepped ram spindle box, a motor support, a first driving mechanism, a second driving mechanism, a mechanical spindle and sliding parts, wherein the stepped saddle and the stepped ram spindle box are connected through a plurality of vertical sliding parts, the sliding parts are arranged on different planes, the stepped ram spindle box can slide up and down on the stepped saddle through the sliding parts, the motor support is fixed on one side face, far away from the stepped saddle, of the ram spindle box, one side of the stepped saddle is designed into two convex-stepped-concave planes, and the two upper and lower planes are respectively provided with a first sliding block in a left-right mode;
the mechanical main shaft comprises a body and a rotating shaft, the rotating shaft is connected with the body through a bearing and can rotate in the body, the body is fixed on the stepped ram main shaft box, and a tool shank is arranged at the bottom of the rotating shaft;
the first driving mechanism is arranged in the stepped saddle and connected with the stepped ram spindle box, and can drive the stepped ram spindle box to move up and down on one side of the stepped saddle along the sliding part;
and the second driving mechanism is arranged on the motor support, is connected with the rotating shaft and can drive the rotating shaft to rotate.
As a further improvement of the invention, the first driving mechanism comprises an AC absolute value servo motor, a precision planetary gear reducer, a double-diaphragm rigid coupling and a lead screw which are sequentially connected from top to bottom, the precision planetary gear reducer is fixed on the top of the stepped saddle through a transmission seat, the upper end and the lower end of the lead screw respectively penetrate through the transmission seat and a BK fixing seat and are rotationally connected with the transmission seat and the BK fixing seat through a rotating part, the BK fixing seat is fixed at the lower end of the stepped saddle, and the lead screw can rotate in the transmission seat and the BK fixing seat;
the lead screw still pass ball nut between transmission seat and BK fixing base, ball nut fix in the recess of the nut seat of taking the recess, screw hole has on one terminal surface of nut seat, with the flange face fix with screw of ball nut, nut seat up end establish on stepped ram headstock back.
As a further improvement of the invention, the rotating part is a special ball screw bearing and a radial lock nut, two special ball screw bearings and one radial lock nut are arranged in the inner cavities of the transmission seat and the BK fixing seat, and the screw can rotate in the special ball screw bearing and the radial lock nut.
As a further improvement of the invention, the second driving mechanism is a belt conveying mechanism and comprises an asynchronous servo spindle motor, a first synchronous wheel, a second synchronous wheel and a synchronous belt, wherein a base of the asynchronous servo spindle motor is arranged on the motor support;
the synchronous wheel I is arranged on an output shaft of the asynchronous servo spindle motor, the synchronous wheel II is arranged on the rotating shaft, and the synchronous belt is connected with the synchronous wheel I and the synchronous wheel II.
As a further improvement of the invention, a tensioning device is arranged on the belt conveying mechanism to tension the synchronous belt.
As a further improvement of the invention, the tensioning device comprises a tensioning flange and an adjusting block, the asynchronous servo spindle motor is fixed on the tensioning flange, a plurality of through long holes are arranged on the plane of the tensioning flange, and bolts penetrate through the long holes and are fixed on the motor support; the adjusting block is fixed in the middle of the end face, far away from the stepped ram spindle box, of the motor support, the upper portion of the adjusting block is exposed out of the upper plane of the motor support, a circular through hole is formed in the exposed portion of the adjusting block, a threaded hole is formed in the tensioning flange, corresponding to the circular through hole, and a bolt penetrates through the circular through hole of the adjusting block and is screwed in the threaded hole of the tensioning flange.
Through set up the slot hole on the tensioning flange, can adjust the mounted position of tensioning flange on the motor support for the hold-in range tensioning avoids appearing the hold-in range and relaxs, influences the rotation effect that drives the pivot. The bolt is additionally arranged at one end of the tensioning flange and connected with the motor support, so that a certain tensioning force can be provided, the phenomenon that the tensioning flange slides due to the fact that the bolt is not firmly fixed easily when only used for tensioning the bolt at the long hole of the tensioning flange is avoided, the tensioning force is further improved, and the tensioning effect is improved.
As a further improvement of the present invention, the sliding portions are slide rail type sliding portions, each sliding portion includes a pair of linear guide rails and a guide slider which are mutually matched, the plurality of linear guide rails are vertically fixed on one side of a stepped saddle, the stepped saddle is provided with a stepped side surface on one side of the fixed linear guide rail so as to fix the plurality of linear guide rails, the plurality of linear guide rails are at least on two planes, the plurality of guide sliders are fixed on one side of a stepped ram spindle box in a stepped manner and are respectively matched with the linear guide rails, and the stepped ram spindle box can move up and down on the stepped saddle along the linear guide rails through the guide sliders.
Through setting up a plurality of sliding parts on the plane of difference, the gliding stability of cascaded ram headstock on cascaded saddle has been increased greatly, avoids the vibrations phenomenon of equipment when drilling processing, through the slip of slider and linear guide rail formula, and connection stability is strong.
As a further improvement of the invention, one side of the stepped saddle installation linear guide rail is provided with two planes with concave centers, the number of the linear guide rails is four, the two linear guide rails in the middle are arranged at the concave surface in the middle, and the two linear guide rails at two sides are arranged on the convex surfaces at two sides.
As a further improvement of the invention, the nitrogen balancing device comprises two nitrogen balancing devices, the two nitrogen balancing devices respectively comprise telescopic rods and nitrogen balancing device bodies, the bottom ends of the two telescopic rods are symmetrically fixed on two sides of the upper plane of the stepped ram spindle box, the two nitrogen balancing device bodies are respectively fixed on the upper plane of the stepped saddle through two fixing supports, and the telescopic rods can move in the nitrogen balancing device bodies in a telescopic mode.
Through setting up nitrogen gas balancing unit, to the impact load of ladder formula saddle when can reducing AC absolute value servo motor and drive the lead screw up-and-down motion, avoid vibrating to can reduce the load of lead screw and ball nut, make the drill bit add more stability man-hour in the drilling, improve drilling quality.
As a further improvement of the present invention, the tool holder is further connected to an automatic tool changing mechanism to realize automatic tool changing of a tool, the automatic tool changing mechanism 12 is in the prior art, and comprises a pressurizing unclamping cylinder 121, an unclamping support 122, a rotary joint 123 and a tool changing part 124, the tool changing part 124 is arranged in a vertical through hole formed in the spindle 6, the pressurizing unclamping cylinder 121 is fixed on the top surface of the stepped ram spindle box 2 through a pressurizing cylinder mounting seat 125, a piston rod of the pressurizing unclamping cylinder 121 is connected with the top of the tool changing part 124 through the unclamping support 122 and the rotary joint 123, and the bottom of the tool changing part 124 tightly embraces the tool holder 9.
Through setting up automatic tool changing mechanism, can realize automatic tool changing under the pressure of pressure boost unclamping cylinder, avoid the manual trouble of revolving the wrong drill bit, realize the automation, improve production efficiency.
In summary, compared with the prior art, the invention has the following beneficial effects: through the stair structure who sets up cascaded saddle and cascaded ram headstock, make direction slider and linear guide all not on the coplanar, make cascaded ram headstock along the linear guide operation on the cascaded saddle, stability strengthens greatly, thereby add man-hour at drill bit operation drilling, stability greatly increased has avoided equipment vibrations and drill bit shake and has leaded to the drilling aperture inhomogeneous, the problem that the spiral line and roughness are not up to standard appears in the downthehole wall, the processingquality of product has been improved.
Drawings
The invention is further described with reference to the accompanying drawings in which:
FIG. 1 is a front view of a numerically controlled drill four-wire rail vertical ram power head according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a view from the direction B of FIG. 1;
FIG. 4 is a perspective view of a numerically controlled drill four-wire track vertical ram power head according to the present invention;
FIG. 5 is an enlarged view of FIG. 4 at C;
FIG. 6 is an enlarged view of FIG. 2 at D;
in the figure: the device comprises a stepped saddle 1, a stepped ram spindle box 2, a motor support 3, a first driving mechanism 4, a servo motor with an absolute value of 41AC, a precise planetary gear reducer 42, a rigid coupler with double diaphragms 43, a lead screw 44, a transmission seat 45, a rotating part 46, a fixed seat 47BK, a ball nut 48, a nut seat 49, a second driving mechanism 5, an asynchronous servo spindle motor 51, a first synchronous wheel 52, a second synchronous wheel 53, a synchronous belt 54, a mechanical spindle 6, a body 61, a rotating shaft 62, a sliding part 7, a linear guide rail 71, a guide slider 72, a first slider 8, a knife handle 9, a tensioning device 10, a tensioning flange 101, a long hole 1011, an adjusting block 102, a nitrogen balancing device 11, a telescopic rod 112 nitrogen balancing device body 111, a fixed support 113, an automatic knife changing mechanism 12, a pressurized knife cylinder 121, a knife beating support 122, a rotary joint 123, a knife changing part 124, a pulling claw 1241 and a pressurizing cylinder.
Detailed Description
The invention is described in further detail below with reference to figures 1-6.
The embodiment of the invention discloses a numerical control drill four-line rail vertical ram power head. Referring to fig. 1-6, a perpendicular ram unit head of numerical control brill four-wire rail, includes cascaded saddle 1, cascaded ram headstock 2, motor support 3, actuating mechanism 4, actuating mechanism two 5 and mechanical main shaft 6, cascaded saddle 1 link to each other through four linear guide 71 and four direction slider 72 with cascaded ram headstock 2, four linear guide 71 vertical fix in one side of cascaded saddle 1, cascaded saddle 1 establish to two planes of middle indent in fixed linear guide 71 one side, two linear guide 71 settings in the middle of are in middle concave surface department, two settings of both sides are on the convex surface of both sides. The plurality of guide sliding blocks 72 are fixed on one side of the stepped ram spindle box 2 in a stepped mode and are matched with the linear guide rails 71 respectively, and the stepped ram spindle box 2 can move up and down on the stepped saddle 1 along the linear guide rails 71 through the guide sliding blocks 72.
Through setting up a plurality of linear guide 71 on the plane of difference, increased cascaded ram headstock 2 gliding stability on cascaded saddle 1 greatly, avoided the vibrations phenomenon of equipment when drilling processing, through the slip of slider and linear guide formula, connection stability is strong.
The motor support 3 is fixed on one side face, far away from the stepped saddle 1, of the ram spindle box 21, one side, far away from the stepped ram spindle box 2, of the stepped saddle 1 is provided with two planes which are convex upwards and concave downwards and are stepped, and two first sliding blocks 8 are respectively arranged on the upper plane and the lower plane on the left side and the right side;
the mechanical spindle 6 comprises a body 61 and a rotating shaft 62, the rotating shaft 62 is connected with the body 61 through a bearing, namely can rotate in the body 61, the body 61 is fixed on the stepped ram spindle box 2, and the bottom of the rotating shaft 62 is provided with a tool shank 9;
the driving mechanism 4 is arranged in the stepped saddle 1, the driving mechanism 4 comprises an AC absolute value servo motor 41, a precision planetary gear reducer 42, a double-diaphragm rigid coupling 43 and a lead screw 44 which are sequentially connected from top to bottom, the precision planetary gear reducer 42 is fixed at the top of the stepped saddle 1 through a transmission seat 45, the upper end and the lower end of the lead screw 44 respectively penetrate through the transmission seat 45 and a BK fixing seat 47, two special ball screw bearings and a radial locking nut are uniformly arranged in the inner cavities of the transmission seat 45 and the BK fixing seat 47, the lead screw 44 penetrates through the special ball screw bearings and the radial locking nut and is rotatably connected with the special ball screw bearings and the radial locking nut, and the BK fixing seat 47 is fixed at the lower end of the stepped saddle 1;
the lead screw 44 is also passed through a ball nut 48 between the transmission seat 45 and the BK fixed seat 47, the ball nut 48 is fixed in a groove of a nut seat 49 with a groove, a screw hole is arranged on one end surface of the nut seat, the nut seat is fixed with a flange surface of the ball nut by a screw, and the upper end surface of the nut seat 49 is arranged on the back surface of the stepped ram spindle box 2.
The screw 44 further passes through a ball nut 48 between the lock ball nut 46 and the linear bearing 47, the ball nut 48 is fixed in a groove of a nut seat 49 with a groove, and a side end surface of the nut seat 49 is fixed on one side surface of the stepped ram head stock 2. When the screw 44 rotates, the ball nut 48 is driven to move up and down, and the stepped ram spindle box 2 connected to the nut seat 49 is driven to move up and down.
The second driving mechanism is a belt conveying mechanism and comprises an asynchronous servo spindle motor 51, a first synchronous wheel 52, a second synchronous wheel 53 and a synchronous belt 54, the base of the asynchronous servo spindle motor 51 is arranged on the motor support 3, the first synchronous wheel 52 is arranged on the output shaft of the asynchronous servo spindle motor 51, the second synchronous wheel 53 is arranged on the rotating shaft 62, and the synchronous belt 54 is connected with the first synchronous wheel 52 and the second synchronous wheel 53. Starting the asynchronous servo spindle motor 51, so as to drive the first synchronous wheel 52 to rotate, wherein the first synchronous wheel 52 drives the second synchronous wheel 53 to rotate through the synchronous belt 54, so as to drive the rotating shaft 62 fixed with the second synchronous wheel 53 to rotate, and finally, the rotation of a cutter on the cutter handle 9 is realized, and the drilling is completed;
preferably, a tensioning device 10 is arranged on the belt conveying mechanism, the tensioning device 10 comprises a tensioning flange 101 and an adjusting block 102, the asynchronous servo spindle motor 51 is fixed on the tensioning flange 101, a plurality of through long holes 1011 are arranged on the plane of the tensioning flange 101, and bolts penetrate through the long holes 1011 and are fixed on the motor support 3; the adjusting block 102 is fixed in the middle of the end face of the motor support 3 far away from the stepped ram spindle box 2, the upper part of the adjusting block is exposed out of the upper plane of the motor support 3, a circular through hole is formed in the exposed part of the adjusting block, a threaded hole is formed in the tensioning flange 101 corresponding to the circular through hole, and a bolt penetrates through the circular through hole of the adjusting block 102 and is screwed in the threaded hole of the tensioning flange 101.
Through setting up the slot hole on tensioning flange 101, can adjust the mounted position of tensioning flange 101 on motor support 3 for hold-in range 54 tensioning avoids appearing hold-in range 54 and relaxs, and the influence drives the rotation effect of pivot 62. Through adding at tensioning flange 101 one end and establishing the bolt and link to each other with motor support 3, can provide certain tensile force, thereby avoid only relying on the bolt tensioning of tensioning flange slot department to appear fixing insecure easily and leading to the gliding phenomenon of tensioning flange 101, further improve the tensile force, improve the tensioning effect.
Preferably, the nitrogen balancing device is further provided with two nitrogen balancing devices 11, each nitrogen balancing device comprises an expansion link 111 and a nitrogen balancing device body 112, the bottom ends of the two expansion links 111 are symmetrically fixed on two sides of the upper plane of the stepped ram spindle box 2, the two nitrogen balancing device bodies 112 are respectively fixed on the upper plane of the stepped saddle 1 through two fixing supports 113, and the expansion links 111 can move in the nitrogen balancing device bodies 112 in a telescopic mode.
Through setting up nitrogen gas balancing unit 11, can reduce the impact load to step saddle 1 when AC absolute value servo motor 41 drives lead screw 44 up-and-down motion, avoid the vibration to can reduce the load of lead screw and ball nut, make the drill bit add more stability man-hour in the drilling, improve drilling quality.
Preferably, the tool holder is further connected with an automatic tool changing mechanism to realize automatic tool changing of tools, the automatic tool changing mechanism 12 is in the prior art and comprises a pressurizing tool beating cylinder 121, a tool beating support 122, a rotary joint 123 and a tool changing part 124, the tool changing part 124 is arranged in a vertical through hole formed in the main shaft 6, the pressurizing tool beating cylinder 121 is fixed on the top surface of the stepped ram spindle box 2 through a pressurizing cylinder mounting seat 125, a piston rod of the pressurizing tool beating cylinder 121 is connected with the top of the tool changing part 124 through the tool beating support 122 and the rotary joint 123, and a pull claw 1241 is arranged at the bottom of the tool changing part 124 to tightly grasp the tool holder 9.
Through setting up automatic tool changing mechanism 12, can realize automatic tool changing under the pressure of pressure boost unclamping cylinder 121, avoid the artifical trouble of twisting the drill bit of revolving, realize the automation, improve production efficiency.
The implementation principle of the numerical control drill four-line rail vertical ram power head provided by the embodiment of the invention is as follows: before the operation, the whole device is fixed on a numerical control drilling machine through a first sliding block 8, a drill bit with a proper specification is installed in a tool shank 9, an AC absolute value servo motor 41, a nitrogen balancing device 11 and an asynchronous servo spindle motor 51 are started during the operation, after the AC absolute value servo motor 41 is started, power is transmitted to a precision planetary gear speed reducer 42, a double-diaphragm rigid coupling 43 and a lead screw 44 in sequence, so that the lead screw 44 is driven to rotate, in the rotating process of the lead screw 44, a ball nut 48 on the lead screw 44 moves linearly along the lead screw 44, so that the power is transmitted to a nut seat 49 and drives a stepped ram spindle box 2 connected with the nut seat 49 to move up and down, and the stepped ram spindle box 2 drives a mechanical spindle 6 and the tool shank 9 in the stepped ram spindle box to move linearly.
In addition, the started asynchronous servo spindle motor 51 drives the first synchronous wheel 42 to rotate, the first synchronous wheel 42 drives the second synchronous wheel 43 to rotate through the synchronous belt 44, the second rotating synchronous wheel 43 drives the rotating shaft 62 fixedly connected with the rotating shaft to rotate, and the tool holder 9 in the rotating shaft 62 can rotate.
Therefore, the drill bit in the tool holder 9 can rotate and move up and down at the same time, and when the drill bit is in contact with a workpiece, a certain drilling force is formed to complete the drilling work on the workpiece. In the whole working process, the nitrogen balancing device 11 can stably balance the loads of the AC absolute value servo motor 41, the precision planetary gear reducer 42, the double-diaphragm rigid coupling 43 and the lead screw 44, so that the stability of the drill bit is improved, and vibration is avoided.
When a tool needs to be replaced, the pressurizing tool beating cylinder 121 receives a tool replacing signal, a piston rod of the pressurizing tool beating cylinder extends out to drive the tool beating support 122 to move downwards, so that the tool changing part 124 is pushed to move downwards through the rotary joint 123, a belleville spring in the tool changing part 124 is squeezed and compressed, a pulling claw is pushed to be opened, the tool shank 9 is loosened, and then the tool shank 9 is manually taken down. When a new tool holder tool needs to be installed, the tool holder 9 is placed into the pulling claw 1241 which is opened at the bottom of the tool changing part 124, and the piston rod of the pressurizing unclamping cylinder 121 retracts, so that the pulling claw 1241 is tensioned and the tool holder 9 is tightly grasped, and the tool changing action is completed.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only, since various other embodiments will become apparent to those skilled in the art upon reference to the following detailed description.
Claims (10)
1. The utility model provides a perpendicular ram unit head of four line rails is bored in numerical control which characterized in that: comprises a step-type saddle (1), a step-type ram spindle box (2), a motor support (3), a first driving mechanism (4), a second driving mechanism (5), a mechanical spindle (6) and a sliding part (7), the step saddle (1) is connected with the step ram spindle box (2) through a plurality of vertical sliding parts (7), the plurality of sliding parts (7) are arranged on different planes, the stepped ram spindle box (2) can slide up and down on the stepped saddle (1) through the sliding parts (7), the motor support (3) is fixed on one side surface of the ram spindle box (21) far away from the stepped saddle (1), the stepped saddle (1) is provided with two planes which are convex upwards and concave downwards and are stepped at one side far away from the stepped ram spindle box (2), and two first sliding blocks (8) are respectively arranged on the upper plane and the lower plane at the left and the right;
the mechanical spindle (6) comprises a body (61) and a rotating shaft (62), wherein the rotating shaft (62) is connected with the body (61) through a bearing and can rotate in the body (61), the body (61) is fixed on the stepped ram spindle box (2), and a tool shank (9) is arranged at the bottom of the rotating shaft (62);
the first driving mechanism (4) is arranged in the stepped saddle (1) and connected with the stepped ram spindle box (2), and can drive the stepped ram spindle box (2) to move up and down on one side of the stepped saddle (1) along the sliding part (7);
the second driving mechanism (5) is arranged on the motor support (3), is connected with the rotating shaft (62) and can drive the rotating shaft (62) to rotate.
2. The numerical control drill four-line rail vertical ram power head of claim 1, characterized in that: the driving mechanism I (4) comprises an AC absolute value servo motor (41), a precision planetary gear reducer (42), a double-diaphragm rigid coupling (43) and a lead screw (44), wherein the AC absolute value servo motor, the precision planetary gear reducer (42), the double-diaphragm rigid coupling and the lead screw (44) are sequentially connected from top to bottom, the precision planetary gear reducer (42) is fixed to the top of the stepped saddle (1) through a transmission seat (45), the upper end and the lower end of the lead screw (44) respectively penetrate through the transmission seat (45) and a BK fixing seat (47) and are rotationally connected with the transmission seat (45) and the BK fixing seat (47) through a rotating part (46), the BK fixing seat (47) is fixed to the lower end of the stepped saddle (1), and the lead screw (44) can rotate in the transmission seat (45);
the lead screw (44) also passes through a ball nut (48) between the transmission seat (45) and the BK fixed seat (47), the ball nut (48) is fixed in a groove of a nut seat (49) with a groove, and the upper end surface of the nut seat (49) is arranged on the back surface of the stepped ram spindle box (2).
3. The numerical control drill four-line rail vertical ram power head of claim 2, characterized in that: the rotating part (46) is a special ball screw bearing and a radial locking nut, two special ball screw bearings and one radial locking nut are arranged in inner cavities of the transmission seat (45) and the BK fixing seat (47), and the screw (44) can rotate in the special ball screw bearings and the radial locking nut.
4. The numerical control drill four-line rail vertical ram power head of claim 1, characterized in that: the second driving mechanism (5) is a belt conveying mechanism and comprises an asynchronous servo spindle motor (51), a first synchronous wheel (52), a second synchronous wheel (53) and a synchronous belt (54), and the base of the asynchronous servo spindle motor (51) is arranged on the motor support (3);
the synchronous wheel I (52) is arranged on an output shaft of the asynchronous servo spindle motor (51), the synchronous wheel II (53) is arranged on the rotating shaft (62), and the synchronous belt (54) is connected with the synchronous wheel I (52) and the synchronous wheel II (53).
5. The numerical control drill four-line rail vertical ram power head of claim 4, characterized in that: the belt conveying mechanism is provided with a tensioning device (10) for tensioning a synchronous belt (54).
6. The numerical control drill four-line rail vertical ram power head of claim 5, characterized in that: the tensioning device (10) comprises a tensioning flange (101) and an adjusting block (102), the asynchronous servo spindle motor (51) is fixed on the tensioning flange (101), a plurality of through long holes (1011) are formed in the plane of the tensioning flange (101), and bolts penetrate through the long holes (1011) to be fixed on the motor support (3); the adjusting block (102) is fixed in the middle of the end face, away from the stepped ram spindle box (2), of the motor support (3), the upper portion of the adjusting block is exposed out of the upper plane of the motor support (3), a circular through hole is formed in the exposed portion of the adjusting block, a threaded hole is formed in the tensioning flange (101) in the position corresponding to the circular through hole, and a bolt penetrates through the circular through hole of the adjusting block (102) and is screwed in the threaded hole of the tensioning flange (101).
7. The numerical control drill four-line rail vertical ram power head of claim 1, characterized in that: sliding part (7) slide for the slider rail type, every sliding part (7) include a pair of linear guide (71) and the direction slider (72) of mutually supporting, the vertical one side of fixing at cascaded saddle (1) of a plurality of linear guide (71), cascaded saddle (1) establish to cascaded side in fixed linear guide (71) one side to after fixing a plurality of linear guide (71), make a plurality of linear guide (71) at least on two planes, cascaded one side of fixing at cascaded ram headstock (2) of a plurality of direction sliders (72) cooperate with linear guide (71) respectively, cascaded ram headstock (2) can be through direction slider (72) along linear guide (71) do the up-and-down motion on cascaded saddle (1).
8. The numerical control drill four-line rail vertical ram power head of claim 7, characterized in that: one side of the stepped saddle (1) with the linear guide rails (71) is provided with two planes which are concave in the middle, the number of the linear guide rails (71) is four, the two linear guide rails (71) in the middle are arranged at the concave surface in the middle, and the two linear guide rails (71) at two sides are arranged on the convex surfaces at two sides.
9. The numerical control drill four-line rail vertical ram power head of claim 1, characterized in that: still include nitrogen gas balancing unit (11), nitrogen gas balancing unit (11) quantity have two, include telescopic link (111) and nitrogen gas balancing unit body (112) respectively, two telescopic link (111) bottom symmetry fix planar both sides on cascaded ram headstock (2), two nitrogen gas balancing unit bodies (112) fix on the last plane of cascaded saddle (1) through two fixed bolster (113) respectively, telescopic link (111) can be in nitrogen gas balancing unit body (112) concertina movement.
10. The numerical control drill four-line rail vertical ram power head of claim 1, characterized in that: handle of a knife (9) still connect automatic tool changing mechanism (12) to realize the automatic tool changing of cutter, automatic tool changing mechanism (12) be prior art, beat sword jar (121), beat sword support (122), rotary joint (123) and tool changing portion (124) including the pressure boost, tool changing portion (124) establish in main shaft (6) inside vertical through-hole of opening some, pressure boost beat sword jar (121) fix through pressure boost jar mount pad (125) the top surface of cascaded ram headstock (2) on, pressure boost beat sword jar (121) piston rod link to each other through beating sword support (122), rotary joint (123) and tool changing portion (124) top, tool changing portion (124) bottom grasp and embrace handle of a knife (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637417.0A CN112775703A (en) | 2020-12-31 | 2020-12-31 | Numerical control drill four-line rail vertical ram power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637417.0A CN112775703A (en) | 2020-12-31 | 2020-12-31 | Numerical control drill four-line rail vertical ram power head |
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| Publication Number | Publication Date |
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| CN112775703A true CN112775703A (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011637417.0A Pending CN112775703A (en) | 2020-12-31 | 2020-12-31 | Numerical control drill four-line rail vertical ram power head |
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| Country | Link |
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| CN (1) | CN112775703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116673544A (en) * | 2023-07-28 | 2023-09-01 | 南通盛联威装备科技有限公司 | Heavy-load composite broach mechanism |
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| CN103586698A (en) * | 2013-10-23 | 2014-02-19 | 杭州大天数控机床有限公司 | Machining center for gantry with four linear rails and ram |
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| CN116673544A (en) * | 2023-07-28 | 2023-09-01 | 南通盛联威装备科技有限公司 | Heavy-load composite broach mechanism |
| CN116673544B (en) * | 2023-07-28 | 2023-11-10 | 南通盛联威装备科技有限公司 | Heavy-load composite broach mechanism |
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