CN206393366U - A kind of mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter - Google Patents

Abstract

The utility model relates to the technical field of superhard tool mechanical sharpening, in particular to an integrated spindle grinding head device for superhard tool mechanical sharpening machine tools. The device includes a frame mechanism, a main shaft mechanism installed in the frame mechanism, a lifting mechanism for driving the main shaft mechanism to lift, and a pitching mechanism for driving the main shaft mechanism to pitch, wherein the frame The mechanism includes an upper frame, a lower frame, a left column and a right column. The device adopts a closed frame mechanism, and the spindle mechanism is installed in the frame mechanism, which improves the rigidity of the spindle grinding head. The lifting motion and pitching motion simplify the structure, compact the space layout of the grinding head, improve the stability and reliability of the spindle motion, and then improve the dimensional accuracy, shape accuracy and position accuracy of the processed superhard tool.

Description

An integrated spindle grinding head device for superhard tool mechanical sharpening machine tools

technical field

The utility model relates to the technical field of superhard tool mechanical sharpening, in particular to an integrated spindle grinding head device for superhard tool mechanical sharpening machine tools.

Background technique

Superhard cutting tools generally refer to new high-hardness cutting tools with diamond and cubic boron nitride materials as the cutting head. Since diamond is the hardest material found in nature at present, it is characterized by its high hardness, high wear resistance, good chemical stability, etc. The characteristics are very suitable for use as knives, which generally adopt mechanical sharpening and electric spark sharpening. Existing mechanical sharpening devices generally use resin-based diamond grinding wheels to sharpen the cutting edge of the tool, and the rigidity of the grinding head of the machine tool is poor. Therefore, the rigidity of the grinding head of the machine tool affects the dimensional accuracy, shape accuracy and position accuracy of the superhard tool. There are problems of scattered structure and unstable operation.

Utility model content

(1) Technical problems to be solved

The purpose of this utility model is to provide an integrated spindle grinding head device for mechanical sharpening of superhard cutting tools and machine tools, which can solve the problems of scattered structure, unstable operation and poor rigidity of the grinding head of the machine tool in the existing mechanical sharpening device, which affects the superhardness. The problem of tool size accuracy, shape accuracy and position accuracy.

(2) Technical solution

In order to solve the above-mentioned technical problems, the utility model provides an integrated spindle grinding head device for superhard tool mechanical sharpening machine tools, including a frame mechanism, a spindle mechanism installed in the frame mechanism, a The lifting mechanism is used to drive the main shaft mechanism to perform lifting movements, and the pitching mechanism installed on the frame mechanism to drive the main shaft mechanism to perform pitching movements; wherein the frame mechanism includes an upper frame, a lower frame, and a left column and the right column, the left and right sides of the upper frame are respectively connected to the tops of the left column and the right column, and the left and right sides of the lower frame are respectively connected to the bottom ends of the left column and the right column.

Further, the main shaft mechanism includes a main shaft, a main shaft seat for installing the main shaft, a main shaft motor drivingly connected to the main shaft, and a diamond grinding wheel installed on the main shaft.

The rear end of the main shaft is connected with the main shaft drive pulley through the first flat key, and the power output shaft of the main shaft motor is connected with the motor pulley through the second flat key, and the motor pulley is connected with the main shaft drive pulley. Connected through the main shaft toothed belt; the main shaft motor is installed on the motor mounting plate, and the motor mounting plate is connected with the main shaft seat through the main shaft motor adjusting screw;

The front end of the main shaft is provided with a front-end conical surface, and an elastic expansion sleeve of the main shaft is installed on the front-end conical surface. A main shaft flange is installed on the sleeve, and the inner hole of the main shaft flange is adapted to the outer cylindrical surface of the elastic expansion sleeve of the main shaft. The diamond grinding wheel is installed on the main shaft flange, and the inner hole of the diamond grinding wheel is in line with the The outer cylindrical surface of the main shaft flange is compatible; the diamond grinding wheel is locked and arranged on the main shaft flange through a flange lock nut, wherein the flange lock nut is provided with a reverse trapezoidal slideway, and the Several counterweights for adjusting the dynamic balance of the main shaft are arranged in the anti-trapezoid slideway.

Further, the pitch mechanism includes a pitch handwheel transmission mechanism, a worm gear transmission mechanism and a pitch guide mechanism;

The pitch handwheel transmission mechanism includes a pitch handwheel shaft arranged horizontally, a pitch handwheel arranged at one end of the pitch handwheel shaft, and a first pitch pulley arranged at the other end of the pitch handwheel shaft, wherein the first A pitching pulley is connected with the pitching handwheel shaft through the first positioning pin; the pitching handwheel shaft is installed on the pitching bearing seat through the pitching handwheel bearing group, and the pitching bearing seat is installed on the right column; the The pitch bearing seat is covered with an elastic bushing, and the elastic bushing is arranged on the inner wall of the right column, and the pitch bearing seat, the right column and the elastic bushing are fastened by fastening bolts ; The pitching handwheel is connected to the shaft of the pitching handwheel through a fastener, and the pitching handwheel is also provided with a pitching handwheel operating handle;

The worm gear transmission mechanism includes a vertically arranged worm, a fan-shaped worm gear meshed with the worm, a pitch pulley shaft connected to the worm through a spline shaft, and a second pitch pulley shaft arranged on the pitch pulley shaft. Pitch pulley, wherein the upper and lower ends of the worm are respectively equipped with combined thrust needle roller bearings, and the two combined thrust needle roller bearings are respectively installed on the upper bearing seat and the lower bearing seat, and the upper bearing seat and the lower bearing The seats are respectively installed on the worm seat; the worm is splined to the spline shaft, and the spline shaft is connected to the pitch pulley shaft through the second positioning pin; the pitch pulley shaft passes through the pitch pulley bearing Installed on the pitching pulley bearing seat, the pitching pulley bearing seat is connected to the upper frame through a connecting piece;

The first pitch pulley is connected to the second pitch pulley through a pitch toothed belt; a toothed belt guide support assembly is provided on the upper frame, and the tooth belt guide support assembly includes a first support shaft , a first support wheel disposed on the first support shaft, a second support shaft, and a second support wheel disposed on the second support shaft, wherein the pitch toothed belts respectively pass through the first a support wheel and said second support wheel;

The pitch guide mechanism includes a pitch guide rail arranged on the right side of the main shaft seat, and a pitch guide rail groove arranged on the lifting pallet and matched with the pitch guide rail; wherein the fan-shaped worm wheel is fixed on the main shaft seat On the left side, the pitch guide rail groove is an arc groove; the fan-shaped worm gear drives the main shaft seat to move, and drives the pitch guide rail to move around the rotation center of the fan-shaped worm wheel along the pitch guide rail groove on the lifting pallet.

Further, the lifting mechanism includes a lifting handwheel transmission mechanism, a lifting screw transmission mechanism and a lifting guide mechanism;

The lifting handwheel transmission mechanism includes a lifting handwheel shaft arranged horizontally, a lifting handwheel arranged at one end of the lifting handwheel shaft, and a horizontal bevel gear arranged at the other end of the lifting handwheel shaft, wherein the horizontal bevel gear The third flat key is connected with the shaft of the lifting hand wheel, and the horizontal bevel gear is tightly connected with the third flat key through a set screw; the lifting hand wheel is provided with a lifting hand wheel operating handle, and the lifting hand wheel The hand wheel is installed on the side of the right column through the hand wheel seat, the lifting hand wheel is connected with the lifting hand wheel shaft through the fourth flat key, and the lifting hand wheel shaft passes through the hand wheel seat and the right hand wheel shaft respectively. The column is installed in the lifting handwheel bearing, and the lifting handwheel bearing is installed on the lifting screw bearing seat, and the lifting screw bearing seat is connected with the upper frame;

The lifting screw transmission mechanism includes a vertically arranged lifting screw, a lifting pallet screwed with the lifting screw, and a vertical bevel gear arranged on the lifting screw, wherein the vertical The bevel gear is meshed with the horizontal bevel gear, and the vertical bevel gear is provided with a gear sleeve, and the gear sleeve is connected with the vertical bevel gear through a rivet; the upper end of the lifting screw is installed on the lifting screw In the bearing, the lifting screw bearing is installed on the lifting screw bearing seat, and the lifting screw locking nut is installed on the top of the lifting screw; the lifting supporting plate is provided with a trapezoidal internal thread, and the lifting The trapezoidal internal thread of the supporting plate is adapted to the trapezoidal external thread of the lifting screw;

The lifting guide mechanism includes a lifting guide groove arranged on the left column, a lifting guide rail arranged on the worm seat and matched with the lifting guide groove, and a dovetail groove arranged on the lifting pallet . A dovetail guide rail arranged on the right column and matched with the dovetail groove, wherein a dovetail guide rail insert is provided between the dovetail groove and the dovetail guide rail.

(3) Beneficial effects

The above-mentioned technical scheme of the utility model has the following advantages:

The utility model provides an integrated spindle grinding head device for superhard tool mechanical sharpening machine tools, which is connected by an upper frame, a lower frame, a left column and a right column to form a closed frame mechanism. A spindle mechanism is installed in the frame mechanism to lift the spindle. The rigidity of the grinding head, at the same time, the lifting mechanism and the pitching mechanism are installed in the frame mechanism, so that the main shaft mechanism performs vertical lifting movement and pitching movement in the frame mechanism, and the lifting and pitching functions of the spindle grinding head are integrated in the frame mechanism Among them, a compact and highly rigid integrated spindle grinding head device is formed, which improves the stability and reliability of the spindle movement, thereby improving the size and shape accuracy of the processed superhard tool.

Description of drawings

Fig. 1 is a schematic diagram of the frame mechanism of the integrated spindle grinding head device of the superhard tool mechanical sharpening machine tool according to the embodiment of the utility model;

Fig. 2 is a front sectional view of the integrated spindle grinding head device of the superhard tool mechanical sharpening machine tool according to the embodiment of the present invention;

Fig. 3 is the A-A sectional view of Fig. 2 of the integrated spindle grinding head device of the superhard tool mechanical sharpening machine tool according to the embodiment of the present utility model;

Fig. 4 is a top view of the integrated spindle grinding head device of the superhard tool mechanical sharpening machine tool according to the embodiment of the present invention;

Fig. 5 is a C-C sectional view of Fig. 4 of the integrated spindle grinding head device of the superhard tool mechanical sharpening machine tool according to the embodiment of the present utility model;

Fig. 6 is a D-D cross-sectional view of Fig. 4 of the integrated spindle grinding head device of the superhard tool mechanical sharpening machine tool according to the embodiment of the present utility model;

Fig. 7 is a schematic diagram of the main shaft structure of the integrated main shaft grinding head device of the superhard tool mechanical sharpening machine tool according to the embodiment of the present invention.

In the figure: 1. Upper cover; 2. Upper frame; 3. Connecting bolts; 4. Lifting screw lock nut; 5. Lifting screw bearing; 6. Lifting screw bearing seat; 7. Spring retaining ring; The fifth flat key; 9, lifting screw; 10, adjusting screw; 11, vertical bevel gear; 12, wire rope; 13, pulley bearing; 14, shaft pin; 15, main shaft seat; 16, left column; 17, worm Seat; 18, adjusting bolt; 19, the first lower frame; 20, lifting carriage; 21, the second lower frame; 22, the first flat key; 23, counterweight block; 24, the second groove pin; 25, The first groove pin; 26, pitch buffer cylinder; 27, lifting buffer cylinder; 28, cylindrical pin; 29, pulley; 30, buffer cylinder support; 31, right column; 32, connecting screw; 33, main shaft; 34, Motor mounting plate; 35, main shaft driving pulley; 36, worm; 37, fan-shaped worm wheel; 38, installation positioning pin; 39, lifting guide rail; 40, pitching locking screw; 41, main shaft flange; 42, main shaft elastic expansion sleeve ;43. Flange lock nut; 44. Lifting lock wrench; 45. Main shaft protection bracket; 46. Copper block; 47. Mounting bolt; 48. Pitch guide rail; 49. Dovetail guide rail insert; , the second pitch pulley; 52, the first support wheel; 53, the first support shaft; 54, the second support wheel; 55, the second support shaft; Motor positioning screw; 59, pitch pulley bearing housing; 60, pitch pulley shaft; 61, pitch pulley bearing; 62, retaining ring; 63, second positioning pin; 64 first protective cover; 65, combined thrust roller Bearing; 66, grinding wheel cover; 67, grinding wheel cover; 68, diamond grinding wheel; 69, grinding wheel pressing sheet; 70, protective cover connecting plate; 71, sealing strip; 72, second protective cover; 73, lower bearing seat; 74, Spline shaft; 75, upper bearing seat; 76, second flat key; 77, motor pulley; 78, main shaft toothed belt; 79, lifting handwheel shaft; 80, lifting handwheel operating handle; 81, handwheel seat; 82, set screw; 83, horizontal bevel gear; 84, gear sleeve; 85, indexing worm; 86, pitch bearing seat; 87, combined thrust bearing; 88, flat thrust washer; 89, first pitch pulley; 90 , first positioning pin; 91, pitch handwheel shaft; 92, combined needle roller bearing; 93, elastic bushing; 94, scale turntable; 95, internal meshing worm wheel; 96, adjusting washer; Gear; 99, handwheel pressure plate; 100, inner sleeve; 101, fastening bolt; 102: pitch handwheel operating handle; 103, pitch toothed belt; 104, lifting handwheel bearing; 105, positioning pin.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1-7, the embodiment of the utility model provides an integrated spindle grinding head device for superhard tool mechanical sharpening machine tools, including a frame mechanism, a spindle mechanism installed in the frame mechanism, a spindle mechanism installed in the frame The lifting mechanism on the mechanism is used to drive the main shaft mechanism for lifting action, and the pitching mechanism installed on the frame mechanism is used to drive the main shaft mechanism for pitching action; wherein the frame mechanism includes an upper frame 2, a lower frame Frame, left column 16 and right column 31, the left and right sides of described upper frame 2 correspondingly connect the tops of described left column 16 and right column 31 respectively, the left and right sides of described lower frame correspond to connect described left column 16 respectively And the bottom of right column 31.

The utility model provides an integrated spindle grinding head device for superhard tool mechanical sharpening machine tools. The upper frame 2, the lower frame, the left column 16 and the right column 31 are connected to form a closed frame mechanism, and the spindle mechanism is installed in the frame mechanism. The rigidity of the spindle grinding head is improved, and the lifting mechanism and the pitching mechanism are integrated into the frame mechanism, so that the spindle mechanism can perform up and down movement and pitching movement in the frame mechanism, forming a highly rigid integrated spindle grinding head device. In turn, the dimensional accuracy of the processed superhard tool is improved.

Specifically, an accommodating cavity is provided in the upper frame 2 , and the upper cover 1 is installed on the upper frame 2 . The right upright 31 is connected to the upper frame 2 through a connecting screw 32, and the left upright 16 is connected to the upper frame 2 through an adjustment screw 10. By adjusting the adjustment screw 10, the left upright 16 can be connected to the upper frame 2. The adjustment of the above frame 2 spacing.

The left column 16 includes a left base plate and a left column arranged on the left base plate, and the left column is a special-shaped column with a hollow structure. The right column 31 includes a right base plate and a right column arranged on the right base plate, and the right column is a special-shaped column with a hollow structure. Wherein said left pillar and right pillar all adopt hollow structure pillar, described left bottom plate and right bottom plate all adopt solid structural bottom plate, described left bottom plate and right bottom plate are respectively connected with the mobile platform of machine tool through installing bolt 47 and installing positioning pin 38 The connection not only ensures the rigidity, mechanical strength, stability and reliability of the column, but also effectively reduces the weight of the device, and is also convenient for casting preparation and processing. Both the left pillar and the right pillar adopt a special-shaped column structure, which can rationally displace each operating mechanism and each operating handwheel, save the overall space, ensure a reasonable space for processing and assembly, and ensure the adjustability of each component and overall rigidity.

The lower frame includes a first lower frame 19 and a second lower frame 21 overlapping each other, one end of the first lower frame 19 is connected to the left bottom plate, and the other end of the first lower frame 19 is provided with a L Shaped lap and groove. One end of the second lower frame 21 is connected to the right bottom plate, and the other end of the second lower frame 21 is provided with an inverted L-shaped lap matching the L-shaped lap groove of the first lower frame 19. Then tongue and groove. The first lower frame 19 and the second lower frame 21 are connected by a number of adjusting bolts 18 that can adjust the distance between the overlapping surfaces of the L-shaped overlapping groove and the inverted L-shaped overlapping groove. By adjusting the position of the adjusting bolt 18, the overlap distance between the first lower frame 19 and the second 21 can be adjusted, and then the distance between the left column 16 and the right column 31 can be adjusted to ensure that it is arranged on the right column 31. The upper dovetail guide rail is parallel with the lifting guide rail groove that is arranged on the left column 16.

Further, the spindle mechanism includes a spindle 33 , a spindle base 15 for mounting the spindle 33 , a spindle motor 50 drivingly connected to the spindle 33 , and a diamond grinding wheel 68 mounted on the spindle 33 .

Wherein, the front end of the main shaft 33 is provided with a front taper surface, and a main shaft elastic expansion sleeve 42 is installed on the front end taper surface. The tapered surface of the front end of the main shaft 33 cooperates with the tapered surface of the elastic expansion sleeve 42 to improve the rotation accuracy. A main shaft flange 41 is installed on the main shaft elastic expansion sleeve 42, and the inner hole of the main shaft flange 41 is adapted to the outer cylindrical surface of the main shaft elastic expansion sleeve 42, through the elasticity of the main shaft elastic expansion sleeve 42 deformation, so that the outer cylindrical surface of the main shaft elastic expansion sleeve 42 fits closely with the inner hole of the main shaft flange 41, and then the main shaft flange 41 and the main shaft 33 are connected into one body, ensuring that the main shaft The rotation accuracy of the flange 41.

In addition, two positioning pins 105 are provided at the front of the main shaft, which guide the main shaft flange 41 and ensure the integrated operation of the main shaft flange 41 and the main shaft 33 without loss of rotation.

The diamond grinding wheel 68 is installed on the main shaft flange 41 , and the inner hole of the diamond grinding wheel 68 is adapted to the outer cylindrical surface of the main shaft flange 41 . The diamond grinding wheel 68 is locked and arranged on the main shaft flange 41 through the flange lock nut 43, wherein the flange lock nut 43 is provided with a reverse trapezoidal slideway, and a plurality of utility blocks are arranged in the reverse trapezoidal slideway. In order to adjust the counterweights 23 for adjusting the dynamic balance of the main shaft, three counterweights 23 are preferably provided in this embodiment. By adjusting the distribution position of the counterweight 23 in the slideway, it is possible to constantly adjust the dynamic balance of the main shaft online.

The front end of the main shaft 33 is also equipped with a grinding wheel cover 66 and a grinding wheel cover 67 to prevent the grinding fluid from splashing and the grinding wheel particles from breaking and flying out during tool machining.

Wherein, the rear end of the main shaft 33 is connected with the main shaft driving pulley 35 through the first flat key 22, and the power output shaft of the main shaft motor 50 is connected with the motor pulley 77 through the second flat key 76, and the motor belt The wheel 77 is connected to the main shaft drive pulley 35 through a main shaft toothed belt 78 . The main shaft toothed belt 78 is used to transmit power between the main shaft motor 50 and the main shaft 33 to realize flexible machining. When the external load exceeds the design value, the main shaft toothed belt 78 will slip to prevent the main shaft 33 and the main shaft motor 50 from slipping. overload damage.

The spindle motor 50 is installed on the motor mounting plate 34, and the motor mounting plate 34 is connected to the rear end of the spindle seat 15 through a spindle motor adjusting screw 58, which has a compact structure and high safety.

Further, the pitch mechanism includes a pitch handwheel transmission mechanism, a worm gear transmission mechanism, a pitch guide mechanism and a pitch buffer mechanism.

Wherein, the pitch handwheel transmission mechanism includes a pitch handwheel shaft 91 arranged horizontally, a pitch handwheel 57 arranged at one end of the pitch handwheel shaft 91, and a first pitch belt arranged at the other end of the pitch handwheel shaft 91. 89, wherein the first pitching pulley 89 is connected with the pitching handwheel shaft 91 through the first positioning pin 90, the purpose is to shorten the first positioning pin 90 when the transmission torque is too large, thereby protecting the pitching handwheel shaft 91 And the first pitch pulley 89.

The pitch handwheel shaft 91 is installed on the pitch bearing seat 86 through the pitch handwheel bearing group, and the pitch bearing seat 86 is installed on the right column 31 . The pitch bearing seat 86 is covered with an elastic bushing 93, and the elastic bushing 93 is arranged on the inner wall of the right column 31. The pitch bearing seat 86, the right column 31 and the elastic bushing 93 are fastened by fastening bolts 101, wherein the effect of the elastic bushing 93 is to adjust the gap, compress the inner wall of the right column 31, and prevent the pitch handwheel shaft 91 from being suspended. The pitch handwheel 57 is connected to the pitch handwheel shaft 91 through fasteners, and the pitch handwheel 57 is also provided with a pitch handwheel operating handle 102 .

The pitching handwheel bearing set includes two combined needle roller bearings 92 and two combined thrust bearings 87 arranged on the pitching handwheel shaft 91, wherein the two combined needle roller bearings 92 are arranged on the two combined Between the thrust bearings 87, a flat thrust washer 88 is provided between one of the combined thrust bearings 87 and the first pitch pulley 89, and a flat thrust washer 88 is provided between the other combined thrust bearing 87 and the indexing gear 98. Adjusting washers 96 are provided between them. By adopting the combined thrust bearing 87 and combined needle roller bearing 92 in the pitch handwheel shaft 91, it not only plays the role of adjusting the gap, but also can bear radial force and axial force at the same time.

Wherein, the worm gear transmission mechanism includes a vertically arranged worm 36, a fan-shaped worm wheel 37 meshed with the worm 36, a pitch pulley shaft 60 connected with the worm 36 through a spline shaft 74, and the The second pitch pulley 51 on the pitch pulley shaft 60, wherein the upper and lower ends of the worm 36 are respectively equipped with combined thrust needle roller bearings 65, and the two combined thrust needle roller bearings 65 are respectively installed on the upper bearing housing 75 and On the lower bearing seat 73, the upper bearing seat 75 and the lower bearing seat 73 are respectively installed on the worm seat 17, wherein the two ends of the worm 36 are supported by special combined thrust needle roller bearings 65, which not only ensures Bear radial force, but also bear the role of axial force.

The worm 36 is connected to the spline shaft 74 through a spline, the worm 36 can move up and down along the spline shaft 74, and the spline shaft 74 and the pitch pulley shaft 60 pass through the second positioning pin 63 connect. The structure in which the worm 36, the spline shaft 74 and the pitch pulley shaft 60 are connected is not only convenient for the machining of the shaft, but also ensures the accuracy, and is also convenient for installation, ensuring the shape and position tolerance of the fit.

The pitching pulley shaft 60 is installed on the pitching pulley bearing seat 59 through the pitching pulley bearing 61, and the pitching pulley bearing seat 59 is connected with the upper frame 2 through a connecting piece.

The first pitch pulley 89 is connected to the second pitch pulley 51 through a pitch toothed belt 103 . A toothed belt guide support assembly is provided on the upper frame 2, and the tooth belt guide support assembly includes a first support shaft 53, a first support wheel 52 arranged on the first support shaft 53, a second The support shaft 55, and the second support wheel 54 arranged on the second support shaft 55, wherein the pitch toothed belt 103 passes through the first support wheel 52 and the second support wheel 54 respectively, so that Guidance and reversing of the pitch toothed belt 103 are realized. The pitching mechanism of this device adopts pitching toothed belt 103 as the carrier of force transmission, and purpose is flexible transmission, when overload, described pitching toothed belt 103 slips, can not damage pitching pulley shaft 60, pitching hand wheel shaft 91 and worm screw 36 and other key components. At the same time, guiding and reversing are realized through the toothed belt guide support assembly, the space position is opened, the interference of the pitch toothed belt 103 and the side wall of the upper frame 2 is prevented, and the 90-degree transmission of the pitch toothed belt 103 is realized. The power, that is, converts the horizontal power input into the vertical power input under the action of the toothed belt guide support assembly.

Wherein, the pitch guide mechanism includes a pitch guide rail 48 arranged on the right side of the spindle base 15 , and a pitch guide rail groove arranged on the lifting pallet 20 and matched with the pitch guide rail 48 . Wherein the fan-shaped worm gear 37 is fixed on the left side of the main shaft seat 15, and the pitch guide rail groove is an arc-shaped groove. When the fan-shaped worm gear 37 drives the spindle base 15 to move, it drives the pitch guide rail 48 to move around the center of rotation of the fan-shaped worm gear 37 along the arc groove on the lifting pallet 20 .

Wherein, the pitching buffer mechanism includes a pitching buffer cylinder 26 vertically arranged on the lifting pallet 20, the power output end of the pitching buffering cylinder 26 is equipped with a pulley 29 through a pulley bearing 13, and passes through the pulley 29 is provided with a steel wire rope 12. A first grooved pin 25 is arranged on the lifting pallet 20, a second grooved pin 24 is arranged on the main shaft seat 15, and the two ends of the steel wire rope 12 are connected to the first grooved pin 25 respectively. and the second grooved pin 24 .

When the main shaft grinding head device is performing a pitching action, the pitching handwheel operating handle 102 is first shaken, the pitching handwheel shaft 91 is driven to rotate through the pitching handwheel 57, and then the first pitching pulley 89 is driven to rotate, and under the action of the pitching toothed belt 103 The force is transmitted to the second pitch pulley 51, which drives the pitch pulley shaft 60, the spline shaft 74 and the worm 36 to rotate together, and the fan-shaped worm wheel 37 matched with the worm 36 moves, and then the main shaft seat 15 is driven by the fan-shaped worm wheel 37 Movement, the pitch guide rail 48 that is arranged on the main shaft seat 15 moves around the center of rotation of the fan-shaped worm wheel 37 along the pitch guide rail groove in the lifting carriage 20 . During this process, neither the lifting carriage 20 nor the worm seat 17 moves, so the first grooved pin 25 arranged on the lifting pallet 20 does not move. At this time, the second grooved pin arranged on the main shaft seat 15 24 drives one end of the wire rope 12 to slide in the pulley 29, thereby pulling the motion of the pitch buffer cylinder 26, thereby playing a buffering role.

In addition, the pitching mechanism also includes a pitching scale mechanism, and the pitching scale mechanism includes an inner sleeve 100, a scale ring 97, an indexing gear 98, an indexing worm 85, an internal meshing worm wheel 95 and a scale dial 94, wherein the inner sleeve 100 is set on the pitch handwheel shaft 91 and keyed to the pitch handwheel shaft 91, the scale ring 97 is set on the outside of the inner sleeve 100 and fixedly connected with the pitch bearing seat 86, the branch The index gear 98 is sleeved on the pitch handwheel shaft 91 and keyed to the pitch handwheel shaft 91, the index gear 98 is meshed with the index worm 85, and the index worm 85 is engaged with the inner The meshing worm gear 95 is meshed, and the scale turntable 94 is connected with the inner meshing worm wheel 95 through a set screw, and the indexing worm 85 and the inner meshing worm wheel 95 are respectively fixedly connected with the pitch bearing housing 86 . The subdivision of the pitch scale can be realized through the pitch scale mechanism, so that the pitch display accuracy is within 1 arc minute.

Further, the lifting mechanism includes a lifting hand wheel transmission mechanism, a lifting screw transmission mechanism and a lifting guide mechanism.

Wherein, the lifting handwheel transmission mechanism includes a lifting handwheel shaft 79 arranged horizontally, a lifting handwheel 56 arranged at one end of the lifting handwheel shaft 79, and a horizontal bevel gear 83 arranged at the other end of the lifting handwheel shaft 79 , wherein the horizontal bevel gear 83 is connected with the lifting hand wheel shaft 79 through the third flat key, and the horizontal bevel gear 83 is tightly connected with the third flat key through a set screw 82 to prevent the horizontal bevel gear 83 from moving along Axial movement. The lifting handwheel 56 is provided with a lifting handwheel operating handle 80, and the lifting handwheel 56 is installed on the side of the right column 31 through a handwheel seat 81. The lifting handwheel shaft 79 is connected, and the lifting handwheel shaft 79 is installed in the lifting handwheel bearing through the handwheel seat 81 and the right column 31 respectively, and the lifting handwheel bearing is installed in the lifting screw bearing seat 6 Above, the lifting screw bearing housing 6 is connected to the upper frame 2 . Wherein the handwheel seat 81 is fixed on the right column 31 by screws, so that there is a distance between the lifting hand wheel 56 and the right column 31 to avoid interference.

Wherein, the lifting screw transmission mechanism includes a vertically arranged lifting screw 9, a lifting pallet 20 threaded with the lifting screw 9, and a vertical bevel gear arranged on the lifting screw 9. 11, wherein the vertical bevel gear 11 is connected with the lifting screw 9 through the fifth flat key 8, the vertical bevel gear 11 is meshed with the horizontal bevel gear 83, and the vertical bevel gear 11 is A gear sleeve 84 is provided, and the gear sleeve 84 is connected with the vertical bevel gear 11 through a rivet. The upper end of the lifting screw 9 is installed in the lifting screw bearing 5, the lifting screw bearing 5 is installed on the lifting screw bearing seat 6, and the lifting screw lock is installed on the top of the lifting screw 9. Tighten the nut 4. The lifting pallet 20 is provided with a trapezoidal internal thread, and the trapezoidal internal thread of the lifting pallet 20 is matched with the trapezoidal external thread of the lifting screw 9 . Wherein the vertical bevel gear 11 and the gear sleeve 84 are connected as a whole by riveting, which is convenient for processing the bevel gear, and can also lengthen the length of the keyway to increase the range of the torsion. By adjusting the distance between the vertical bevel gear 11 and the lower surface of the upper frame 2, the vertical bevel gear 11 is prevented from interfering with the lower surface of the upper frame 2 when rotating.

The lifting screw bearing seat 6 includes an upper mounting plate and a side mounting plate, the upper mounting plate is perpendicular to the side mounting plate, and the upper mounting plate and the side mounting plate can adopt an integrated structure , a structural form in which the upper mounting plate is vertically connected to the side mounting plate may also be adopted. Wherein the upper mounting plate is provided with a lifting screw bearing installation part for installing the lifting screw bearing 5, the lifting screw bearing installation part is arranged on the upper side of the upper frame 2, and the lifting screw The rod bearing mounting part is connected with the upper frame 2 through a connecting piece. The side mounting plate is provided with a lifting handwheel bearing installation part for installing the lifting handwheel bearing 104, and the lifting handwheel bearing installation part is suspended on the inner side of the right column 31 and the upper frame 2 the underside of the Each bearing in the lifting screw bearing seat 6 is positioned front and back by a retaining ring and precision nuts. Among them, the lifting screw bearing seat 6 adopts a rectangular right-angle structure, and the two surfaces are perpendicular to each other. One part is used as the mounting seat for two sets of bearings. The structure is compact and easy to process. went well.

Wherein, the lifting guide mechanism includes a lifting guide groove arranged on the left column 16, a lifting guide rail 39 arranged on the worm seat 17 and matched with the lifting guide groove, and a lifting guide rail 39 arranged on the lifting bracket. The dovetail groove on the plate 20, the dovetail guide rail arranged on the right column 31 and matched with the dovetail groove, wherein a dovetail guide rail insert 49 is provided between the dovetail groove and the dovetail guide rail. Utilize the dovetail guide rail insert 49 to adjust the mutual position, sliding tightness and gap between the right column 31 and the lifting pallet 20, so that the left column 16, the worm seat 17, the main shaft seat 15, the lifting carriage 20, and the right column 31 pass through the lifting guide rail 39 , fan-shaped worm gear 37, worm 36, and pitching guide rail 48 are linked together to form a closed integrated structure. By adjusting the gap between each other, smooth lifting and pitching movements can be achieved, while the overall rigidity of the components is improved, saving energy. It saves space, realizes the function of both lifting and pitching, and ensures the shape and position accuracy of the lifting and pitching of the main shaft.

In addition, the lifting mechanism also includes a lifting buffer mechanism, and the lifting buffer mechanism includes a vertically arranged lifting buffer cylinder 27, and the top of the lifting buffer cylinder 27 is connected to the lifting pallet 20 through a straight pin 28, so that The bottom end of the lifting buffer cylinder 27 is connected with the support through a pin shaft, and the support is connected with the right column 31 through screws.

When the main shaft grinding head device performs the lifting action, first shake the lifting handwheel operating handle 80, and the lifting handwheel 56 drives the lifting handwheel shaft 79 and the horizontal bevel gear 83 to rotate, and then transmits the power to the vertical bevel gear 11 meshing with it , the vertical bevel gear 11 rotates to drive the lifting screw 9 to rotate, and the lifting screw is fixed in the axial direction, and the lifting carriage 20 threaded with the lifting screw 9 is lifted up and down under the dovetail guidance of the right column 31. When the pitching hand wheel 57 does not move, so the lifting carriage 20, the main shaft seat 15 and the worm screw seat 17 do not move relative to each other. Engagement relationship in the vertical direction, so the lifting pallet 20 drives the main shaft seat 15 and the worm screw seat 17 to move up and down together, and the lifting guide groove arranged on the right column 16 also plays a guiding role at the same time. During this process, the cylinder body of the lifting and buffering cylinder 27 moves up and down under the drive of the lifting and lowering carriage 20, thereby playing the role of lifting and buffering.

In summary, the integrated spindle grinding head device of the superhard tool mechanical sharpening machine tool provided by the utility model is composed of the upper frame, the lower frame, the left column and the right column to form a closed frame mechanism, and the spindle is installed in the frame mechanism The mechanism improves the rigidity of the spindle grinding head, and at the same time integrates the lifting mechanism and the pitching mechanism into the frame mechanism, so that the spindle mechanism performs vertical lifting movement and pitching movement in the frame mechanism, forming a compact and highly rigid integration. The spindle grinding head device improves the stability and reliability of the spindle movement, thereby improving the dimensional accuracy, shape and position accuracy of the processed superhard tool.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.

Claims (10)

1. a kind of mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter, it is characterised in that：Including frame mechanism, install Mainshaft mechanism in the frame mechanism, be used on the frame mechanism driving the mainshaft mechanism to carry out lifting it is dynamic The elevating mechanism of work and it is used for the pitching machine that drives the mainshaft mechanism to carry out pitching motion on the frame mechanism Structure；Wherein described frame mechanism includes upper ledge (2), lower frame, left column (16) and right column (31), the left and right of the upper ledge (2) Both sides are connected respectively the top of the left column (16) and right column (31), and the left and right sides of the lower frame is corresponded to respectively to be connected Connect the bottom of the left column (16) and right column (31).

2. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 1, it is characterised in that：

Provided with accommodating cavity in the upper ledge (2), lid (1) is installed on the upper ledge (2)；The right column (31) with it is described Upper ledge (2) is connected by attachment screw (32), and the left column (16) is connected with the upper ledge (2) by adjusting screw (10)；

The left column (16) includes left bottom plate and the left pillar being arranged on the left bottom plate, and the left pillar is hollow knot The Special-Shaped Column of structure；The right column (31) includes right bottom plate and the right pillar being arranged on the right bottom plate, the right pillar For the Special-Shaped Column of hollow structure；

The lower frame includes the first lower frame (19) and the second lower frame (21) that mutually overlap, one end of first lower frame (19) and The left bottom plate is connected, and the other end of first lower frame (19) overlaps tongue and groove provided with L-shaped；One end of second lower frame (21) It is connected with the right bottom plate, the other end of second lower frame (21) is provided with the L-shaped overlap joint tongue and groove with first lower frame (19) The inverted L-shaped overlap joint tongue and groove being engaged；First lower frame (19) and the second lower frame (21) overlap tongue and groove by the adjustable L-shaped Some adjustment bolts (18) of overlap joint interplanar distance are connected between overlapping tongue and groove with the inverted L-shaped.

3. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 1, it is characterised in that：Institute Stating mainshaft mechanism includes main shaft (33), the spindle drum (15) for installing the main shaft (33), main shaft (33) described in drive connection Spindle motor (50) and the skive (68) on the main shaft (33).

4. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 3, it is characterised in that：

The rear end of the main shaft (33) connects main shaft drives belt wheel (35) by the first flat key (22), the spindle motor (50) Power output shaft connects electrical machine belt pulley (77), the electrical machine belt pulley (77) and the main shaft drives belt wheel by the second flat key (76) (35) connected by main shaft cog belt (78)；The spindle motor (50) is installed on motor mounting plate (34), the motor peace Dress plate (34) is connected by spindle motor positioning screw (58) with the spindle drum (15)；

The front end of the main shaft (33) is provided with the front end conical surface, and main shaft elastic expansion-sleeve (42), institute are provided with the front end conical surface The inner conical surface for stating main shaft elastic expansion-sleeve (42) is adapted with the front end conical surface, is provided with the main shaft elastic expansion-sleeve (42) Spindle flange (41), the endoporus of the spindle flange (41) is adapted with the external cylindrical surface of the main shaft elastic expansion-sleeve (42), institute Skive (68) is stated on the spindle flange (41), endoporus and the method for principal axis of the skive (68) The external cylindrical surface of blue (41) is adapted；The skive (68) is arranged on the master by flange locking nut (43) locking On shaft flange (41), wherein the flange locking nut (43) is provided with inverse taper slideway, the inverse taper slideway provided with some Balancing weight (23) for adjusting spindle dynamic balance.

5. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 3, it is characterised in that：Institute Stating luffing mechanism includes pitching handwheel transmission mechanism, Worm and worm-wheel gearing and pitching guiding mechanism；

The pitching handwheel transmission mechanism include pitching hand wheel shaft (91) from level to setting, be arranged on the pitching hand wheel shaft (91) the pitching handwheel (57) of one end and the first pitching belt wheel (89) of pitching hand wheel shaft (91) other end is arranged on, Wherein described first pitching belt wheel (89) is connected by the first alignment pin (90) with the pitching hand wheel shaft (91)；The pitching hand Wheel shaft (91) is installed in pitch axis bearing (86) by pitching handwheel bearing group, and the pitch axis bearing (86) is arranged on described On right column (31)；Elastic shaft sleeve (93) is arranged with the pitch axis bearing (86), the elastic shaft sleeve (93) is arranged on institute On the inwall for stating right column (31), between the pitch axis bearing (86), the right column (31) and the elastic shaft sleeve (93) Fastened by fastening bolt (101)；The pitching handwheel (57) is connected with the pitching hand wheel shaft (91) by fastener, described Pitching operated by handwheel handle (102) is additionally provided with pitching handwheel (57)；

The Worm and worm-wheel gearing includes the vertical fan-shaped snail being meshed to the worm screw (36) of setting, with the worm screw (36) Take turns (37), the pitching belt shaft (60) being connected with the worm screw (36) by splined shaft (74) and be arranged on the pitching band The second pitching belt wheel (51) on wheel shaft (60), wherein the upper and lower ends of the worm screw (36) are separately installed with combination needle roller thrust Bearing (65), combines needle roller thrust bearing (65) and is separately mounted on top chock (75) and step (73) described in two, institute The top chock (75) and step (73) stated are separately mounted on worm seat (17)；The worm screw (36) and the splined shaft (74) connected by spline, the splined shaft (74) is connected with the pitching belt shaft (60) by the second alignment pin (63)；Institute State pitching belt shaft (60) to be installed in pitching belt shaft bearing (59) by pitching Bearing with wheel (61), the pitching belt shaft Bearing (59) is connected by connector with the upper ledge (2)；

The first pitching belt wheel (89) is connected with the second pitching belt wheel (51) by pitching cog belt (103)；Described Upper ledge (2) is provided with cog belt guiding support assembly, and the cog belt guiding support assembly includes the first support shaft (53), set The first support wheel (52), the second support shaft (55) on first support shaft (53) and it is arranged on second support The second support wheel (54) on axle (55), wherein the pitching cog belt (103) be each passed through first support wheel (52) and Second support wheel (54)；

The pitching guiding mechanism includes being arranged on the pitching guide rail (48) on the right side of the spindle drum (15) and being arranged on lifting The pitching guide groove being engaged on supporting plate (20) and with the pitching guide rail (48)；Wherein described worm sector (37) is fixed on institute The left side of spindle drum (15) is stated, the pitching guide groove is deep-slotted chip breaker；The worm sector (37) drives the spindle drum (15) Motion, drives the pitching guide rail (48) along the pitching guide groove on the lifting supporting plate (20) around the worm sector (37) The centre of gyration is moved.

6. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 5, it is characterised in that：Institute Stating luffing mechanism also includes pitching buffer gear and pitching scale mechanism；

It is vertical to the pitching bounce cylinder (26) being arranged on the lifting supporting plate (20) that the pitching buffer gear includes, described The clutch end of pitching bounce cylinder (26) installs a pulley (29) by pulley bearings (13), is set through the pulley (29) There is a steel wire rope (12)；First groove pin (25) is provided with the lifting supporting plate (20), is provided with the spindle drum (15) Second groove pin (24), the two ends of the steel wire rope (12) connect the first groove pin (25) and the second groove pin respectively (24)；

The pitching scale mechanism includes inner sleeve (100), calibration loop (97), dividing gear (98), indexing worm (85), internal messing Worm gear (95) and dials (94), wherein the inner sleeve (100) be set on the pitching hand wheel shaft (91) and with it is described Pitching hand wheel shaft (91) key is connected, the calibration loop (97) be set in the inner sleeve (100) it is outside and with the pitch axis bearing (86) be fixedly connected, the dividing gear (98) be set on the pitching hand wheel shaft (91) and with the pitching hand wheel shaft (91) Key is connected, and the dividing gear (98) is meshed with the indexing worm (85), the indexing worm (85) and the internal messing Worm gear (95) is meshed, and the dials (94) are connected with the internal messing worm gear (95) by jackscrew, the indexing worm (85) it is fixedly connected respectively with the pitch axis bearing (86) with the internal messing worm gear (95).

7. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 6, it is characterised in that：Institute Stating pitching handwheel bearing group includes two combination needle bearings (92) being arranged on the pitching hand wheel shaft (91) and two groups Close thrust bearing (87), combination needle bearing (92) described in two of which be arranged on two combination thrust bearings (87) it Between, flat thrust washer is provided between a combination thrust bearing (87) and the first pitching belt wheel (89) wherein (88), provided with adjustment packing ring (96) between another described combination thrust bearing (87) and the dividing gear (98).

8. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 5, it is characterised in that：Institute Stating elevating mechanism includes lifting handwheel transmission mechanism, elevating screw transmission mechanism and lifting guide mechanism；

The lifting handwheel transmission mechanism include lifting handwheel axle (79) from level to setting, be arranged on the lifting handwheel axle (79) lifting handwheel (56) of one end and the horizontal bevel gear (83) of lifting handwheel axle (79) other end is arranged on, its Described in horizontal bevel gear (83) be connected by the 3rd flat key with the lifting handwheel axle (79), the horizontal bevel gear (83) with 3rd flat key is fastenedly connected by holding screw (82)；The lifting handwheel (56) is provided with lifting handwheel operation handle (80), the lifting handwheel (56) is arranged on the side of the right column (31), the lifting handwheel by handwheel seat (81) (56) it is connected by the 4th flat key with the lifting handwheel axle (79), the lifting handwheel axle (79) is each passed through the handwheel seat (81) it is installed on the right column (31) in lifting handwheel bearing, the lifting handwheel bearing is installed on elevating screw bearing block (6) on, the elevating screw bearing block (6) is connected with the upper ledge (2)；

The elevating screw transmission mechanism includes being threadedly coupled to the elevating screw (9) of setting, with the elevating screw (9) vertically Lifting supporting plate (20) and the vertical bevel gear (11) that is arranged on the elevating screw (9), wherein the vertical bevel gear (11) it is connected by the 5th flat key (8) with the elevating screw (9), the vertical bevel gear (11) and the horizontal bevel gear (83) it is meshed, the vertical bevel gear (11) is provided with geared sleeve (84), the geared sleeve (84) is erected by rivet with described Straight bevel gear (11) is connected；The upper end of the elevating screw (9) is installed in elevating screw bearing (5), the elevating screw axle Hold (5) to be installed on the elevating screw bearing block (6), the top of the elevating screw (9) is provided with elevating screw locking screw Female (4)；The lifting supporting plate (20) is provided with trapezoidal internal thread, trapezoidal internal thread and the lifting silk of the lifting supporting plate (20) The trapezoidal external screw thread of thick stick (9) is adapted；

The lifting guide mechanism include be arranged on the left column (16) lifting guide groove, be arranged on the worm seat (17) riser guide (39) being engaged on and with the lifting guide groove and the swallow being arranged on the lifting supporting plate (20) Stern notch, be arranged on the dovetail guide being engaged on the right column (31) and with the dovetail groove, wherein the dovetail groove with Dovetail guide panel (49) is provided between the dovetail guide.

9. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 8, it is characterised in that：Institute Stating elevating mechanism also includes lifting buffer gear, and the lifting buffer gear includes the vertical lifting bounce cylinder to setting (27), the top of the lifting bounce cylinder (27) is connected by straight pin (28) with the lifting supporting plate (20), the lifting The bottom of bounce cylinder (27) is connected by bearing pin with bearing, and the bearing is connected by screw with the right column (31).

10. the mechanical cutter grinding machine integrated main shaft grinding head device of superhard cutter according to claim 8, it is characterised in that： The elevating screw bearing block (6) includes top installing plate and sidepiece installing plate, and the top installing plate is installed with the sidepiece Plate is perpendicular, and the top installing plate is provided with the elevating screw axle bearing mount portion for being used for installing the elevating screw bearing (5), The elevating screw axle bearing mount portion is arranged on the upside of the upper ledge (2), and the elevating screw axle bearing mount portion passes through even Fitting is connected with the upper ledge (2)；The sidepiece installing plate is provided with the lifting for being used for installing the lifting handwheel bearing (104) Handwheel axle bearing mount portion, the lifting handwheel axle bearing mount portion is suspended at inner side and the upper ledge (2) of the right column (31) Downside.