CN207027124U - Spindle taper hole grinder - Google Patents

Abstract

The utility model discloses a kind of spindle taper hole grinder, lower slider is fixed on platen face, and lower slider is rolled upwardly through two groups of linear rolling guides and upper saddle and connected, and lead-screw drive mechanism is additionally provided between upper saddle and lower slider；Upper saddle upper surface is provided with main shaft shell, main shaft is set with jointly in main shaft shell upper through-hole bearings at both ends one, No. 2 taper shanks of Mohs of front-end of spindle are provided with emery wheel, and rear-end of spindle stretches out through hole and is set with primary shaft belt pulley, and electrical machine belt pulley and the primary shaft belt pulley of motor are connected；Leading screw is set with lower slider rear end bearing two, leading screw tail end is installed with handwheel；Upper saddle rear end lower surface is connected with upper saddle screw, and the external screw thread of leading screw circumferential surface is socketed with the screw-internal thread fit of upper saddle screw.Device and method of the present utility model, simple in construction, reliable operation.

Description

Spindle taper hole grinder

Technical field

The utility model belongs to intermetallic composite coating and equipment manufacturing technical field, is related to a kind of spindle taper hole grinder.

Background technology

Current all kinds of cnc boring and milling machines have been widely used for metal-working industry, to realize the structures such as various castings, forging, weldering The thick of complicated high-precision part, half essence, finishing, lathe have milling, boring, drilling, fraising, tapping, reaming, spot-facing etc. Function；Various accessories mill-heads and rotary table are equipped with, realize workpiece clamped one time, multiaspect processing, a tractor serves several purposes；With saving Technological equipment, shorten the Operational preparation cycle, improve operating efficiency, reduce into the advantages that producing cost, obtain good economic benefit.

Although the benefit that Digit Control Machine Tool is brought is more, the fault diagnosis of Digit Control Machine Tool and maintenance are relative complex, to dimension The personnel of repairing propose higher requirement, particularly tapered bore of machine tool spindle and different degrees of abrasion occur because long-time uses, It will be deteriorated with the cone match of taper tool shanks part after spindle taper hole abrasion, cutter bounce change during so as to cause main shaft to rotate Increase, beyond the required precision of lathe so that the element size precision and geometric accuracy processed in metal cutting process Overproof, parts are scrapped, even can not normal work when serious.

Can be more and more with the such phenomenon of usage time increase of Digit Control Machine Tool, if main shaft is removed into offline progress Repair process, not only waste time and energy, also delay normal production；And machine tool chief axis installation specification is higher, machine maintenance worker's Technical merit is uneven, if each link assembly precision is not high during reparation is finished and reinstalled, also results in main shaft Running accuracy declines.Therefore, it has been a technical problem for being badly in need of solution that tapered bore of machine tool spindle is repaired online.

Utility model content

The purpose of this utility model is to provide a kind of spindle taper hole grinder, and solving cnc boring and milling machine in the prior art must Must dismounting main shaft its taper hole could be repaired, the problem of influenceing normal work.

The technical solution adopted in the utility model is that a kind of spindle taper hole grinder, including lower slider, lower slider are fixed on On platen face, lower slider is rolled upwardly through two groups of linear rolling guides and upper saddle and connected, and upper saddle is with gliding Lead-screw drive mechanism is additionally provided between seat；

Upper saddle upper surface is provided with main shaft shell, and the forward upper level in main shaft shell upper surface is provided with through hole, the through hole Both ends are respectively arranged with a bearing one, and main shaft is set with jointly in two bearings one；Front-end of spindle is coaxially connected with Mohs 2 Number taper shank, No. 2 taper shank front ends of Mohs are provided with emery wheel, and rear-end of spindle stretches out through hole and is set with primary shaft belt pulley；Primary shaft belt pulley passes through The electrical machine belt pulley of conveyer belt and motor is connected；

Bearing two is provided with the bearing block of downslide base rear end upper surface, leading screw is set with bearing two, leading screw tail end is consolidated Dingan County is equipped with handwheel；Upper saddle rear end lower surface is connected with upper saddle screw, external screw thread and the upper saddle silk of leading screw circumferential surface Female screw-internal thread fit socket.

Spindle taper hole grinder of the present utility model, is further characterized in that：

The structure of described linear rolling guide is, including line slideway and sliding block, and wherein sliding block is fixed on upper saddle Lower surface, line slideway are fixed on lower slider upper surface, and multiple row ball is provided between sliding block and line slideway.

The structure of described spindle assemblies is, including spacer, spring, the match grinding pad one being sleeved on main shaft, and spacer is forward With the apical grafting of bearing one of front end, spacer backward with spring apical grafting, spring backward with match grinding pad an apical grafting, match grinding pad one backward with it is rear The apical grafting of bearing one at end, the tail end of bearing one of rear end are provided with match grinding pad two, and match grinding pads two rear ends and rear end round nut inner face Apical grafting, the outer race front face of bearing one and the front end round nut inner face apical grafting of front end.

The structure of described lower slider is that the two protrusion chain-wales held rearward among lower slider are used to install bearing block, two Side groove is used to install line slideway and briquetting, and wherein both sides groove is led by inboard row's screw hole for fixing straight line Rail, row's screw hole in the outer part are used to fix briquetting.

The structure of described upper saddle is that one group of screw hole among upper saddle rearward is used for handle and closes slide screw, Middle eccentric position on the front is provided with annular T-slot, and annular T-slot is used to install main shaft shell；Upper saddle both sides are set respectively It is equipped with the sliding block that two groups of screw holes are used to fix above line slideway.

The structure of described main shaft shell is that the horizontal through hole of main shaft shell upper front end is used to install spindle assemblies, main The upper plane of the graduated ring surface of shaft housing front lower portion band and upper saddle coordinates, and by four screw holes with T-shaped screw It is fixedly connected with upper saddle；Main shaft shell rear portion is provided with two parallel T-slots one, and two T-slots one are used for fixed electricity Machine base.

The beneficial effects of the utility model are, it is not necessary to which dismantling machine tool chief axis can just repair to its taper hole, improve The reparation precision of lathe and the machining accuracy of product；The labor intensity and maintenance cost of maintenance personal is reduced, reduces lathe The time is stopped, reduces economic loss caused by shutdown.

Brief description of the drawings

Fig. 1 is the general assembly front view of the utility model device；

Fig. 2 is the general assembly left side view of the utility model device；

Fig. 3 is the general assembly top view of the utility model device；

Fig. 4 is the structure top view of lower slider 26 in the utility model device；

Fig. 5 is the Section A-A figure in Fig. 4；

Fig. 6 is the structure top view of upper saddle 16 in the utility model device；

Fig. 7 is the section B-B figure in Fig. 6；

Fig. 8 is the linear rolling guide structure chart in the utility model device；

Fig. 9 is the structure front view of main shaft shell 1 in the utility model device；

Figure 10 is the structural side view of main shaft shell 1 in the utility model device；

Figure 11 is the structure top view of main shaft shell 1 in the utility model device；

Figure 12 is the structure chart of spindle assemblies in the utility model device；

Figure 13 is the structure top view of motor base 14 in the utility model device；

Figure 14 is the C-C sectional views in Figure 13.

In figure, 1. main shaft shells, 2. spacers, 3. main shafts, 4. springs, 5. match grinding pads one, 6. match grinding pads two, 7. main shaft bands Wheel, 8. bearings one, 9. taper shanks of Mohs 2,10. emery wheel housing screws, 11. rubber sheet gaskets, 12. electrical machine belt pulleys, 13. motors, 14. Motor base, 15. fastening assemblies one, 16. upper saddles, 17. sell directly to households, 18. upper saddle screws, 19. leading screws, 20. bearing blocks, and 21. Bearing two, 22. handwheels, 23. sliding blocks, 24. briquettings, 25. line slideways, 26. lower sliders, 27. annular T-slots, 28.T type grooves one, 29.T type grooves two.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and detailed description.

Emery wheel installation site is assumed in describing below preceding, the installation site of handwheel 22 is rear, and actual installation position is with this Analogize.

Reference picture 1, Fig. 2, Fig. 3, the structure of the utility model device are, including lower slider 26, and lower slider 26 is fixed on machine On bed work top, lower slider 26 is rolled upwardly through two groups of linear rolling guides and upper saddle 16 and connected, upper saddle 16 with Lead-screw drive mechanism is additionally provided between lower slider 26；The upper surface of upper saddle 16 is provided with main shaft shell 1, and main shaft shell 1 is logical Fastening assembly 1 is crossed to be connected with upper saddle 16；The forward upper level in the upper surface of main shaft shell 1 is provided with through hole, the through hole both ends point A bearing 1 is not provided with, and main shaft 3 is set with jointly in two bearings 1；The front end of main shaft 3 is coaxially connected with Mohs 2 Taper shank 9, No. 2 front ends of taper shank 9 of Mohs are provided with emery wheel by rubber sheet gasket 11 and emery wheel housing screw 10, and the rear end of main shaft 3 is stretched out Through hole is set with primary shaft belt pulley 7；Position is provided with motor base 14, the upper surface of motor base 14 to the upper surface of main shaft shell 1 rearward Motor 13 is installed, the electrical machine belt pulley 12 of motor 13 is connected by conveyer belt and primary shaft belt pulley 7；

The rear end upper surface of lower slider 26 is installed with bearing block 20, and bearing 2 21, bearing two are provided with bearing block 20 Leading screw 19 is set with 21, the tail end of leading screw 19 is installed with handwheel 22；The rear end lower surface of upper saddle 16 is connected with upper saddle silk Mother 18, upper saddle screw 18 are located by connecting by selling 17 directly to households with upper saddle 16, the external screw thread and upper saddle of the circumferential surface of leading screw 19 The screw-internal thread fit socket of screw 18；

Reference picture 2, the lower surface both sides of upper saddle 16 are installed with sliding block 23 respectively；Distinguish on the upper surface both sides of lower slider 26 Be installed with line slideway 25, per while sliding block 23 with this while line slideway 25 form linear rolling guide, upper saddle Two sets of linear rolling guides are provided between 16 and lower slider 26 altogether；

Reference picture 4, Fig. 5, the structure of lower slider 26 are that the two protrusion chain-wales held rearward among lower slider 26 are used to install Bearing block 20, both sides groove are used to install line slideway 25 and briquetting 24, and wherein both sides groove is by inboard row's screw hole For fixing line slideway 25 (linear rolling guide), row's screw hole in the outer part is used to fix briquetting 24；Briquetting 24 Main function is exactly the depth of parallelism for adjusting two line slideways 25 in horizontal plane.

Reference picture 6, Fig. 7, the structure of upper saddle 16 are that one group of screw hole among upper saddle 16 rearward is used for handle and closed Slide screw 18, middle eccentric position on the front are provided with annular T-slot 27, and annular T-slot 27 is used to install main shaft shell 1； When needing to be ground internal taper hole, it is necessary to which fixing screws are unclamped, main shaft shell 1 is turned over into corresponding angle in horizontal plane, then Fixing screws are tightened and are fixed firm, prevent main shaft shell 1 from being rotated in grinding process；The both sides of upper saddle 16 are set respectively There are two groups of screw holes to be used for the sliding block 23 for fixing the top of line slideway 25；Every group of screw hole is all four.

Reference picture 2, Fig. 8, the structure of linear rolling guide are, including line slideway 25 and sliding block 23, belong to accurate rolling Sliding function part, wherein sliding block 23 are fixed on the lower surface of upper saddle 16, and line slideway 25 is fixed on the upper surface of lower slider 26, sliding Multiple row ball is provided between block 23 and line slideway 25, relative can roll between the two, pass through leading screw 19 and upper saddle screw Movement is realized in transmission between 18.

Reference picture 9, Figure 10, Figure 11, the structure of main shaft shell 1 are that the horizontal through hole of the upper front end of main shaft shell 1 is used to pacify Spindle assemblies are filled, the upper plane of the graduated ring surface of front lower portion band of main shaft shell 1 and upper saddle (16) coordinates, and passes through four Individual screw hole is fixedly connected with T-shaped screw with upper saddle (16), and when four T-shaped screws unclamp simultaneously, main shaft shell 1 can be The angle of needs is turned on upper saddle 16 in plane annular T-slot 27 (because spindle taper hole is 7：24 internal taper holes, coning angle are 16 ° 35 " 39.4 ", so needing rotational angle during grinding, realize the grinding of the taper hole conical surface)；The rear portion of main shaft shell 1 is provided with two The parallel T-slot 1 of bar, two T-slots 1 are used to fix motor base 14, the motor base when fixing screws are unclamped 14 can be vertically moved in two T-slots 1 of main shaft shell 1, and journey is engaged for adjust conveyer belt and electrical machine belt pulley 12 Degree.

Reference picture 12, the structure of spindle assemblies are, including spacer 2, spring 4, the match grinding pad 1 being sleeved on main shaft 3, every The apical grafting of bearing 1 with front end forward of set 2, spacer 2 backward with the apical grafting of spring 4, spring 4 backward with the apical grafting of match grinding pad 1, match grinding The apical grafting of bearing 1 with rear end backward of pad 1, the tail end of bearing 1 of rear end are provided with match grinding pad 26, the rear end of match grinding pad 26 with Rear end round nut inner face apical grafting, the outer race front face of bearing 1 and the front end round nut inner face apical grafting of front end；

The effect of match grinding pad 1 is can to change the decrement of spring 4 after thickness increase, so as to increase bearings at both ends 1 Relative pretightning force, all the time eliminate bearing 1 gap.The effect of match grinding pad 26 is to position the outer shroud of rear end bearing 1, and The gap within 0.01mm is left, prevents the fever expansion of bearing 1.

No. 2 taper shanks 9 of Mohs are housed, (conical surface ratio is 1 to the rear end of main shaft 3 by male cone (strobilus masculinus) in the front end internal taper hole of main shaft 3：10) Equipped with primary shaft belt pulley 7；The running accuracy of main shaft 3 relies primarily on the precision of bearing 1 itself, match grinding pad 1 and match grinding pad 26 The interactions such as the pretension of size match grinding, the adjustment of front and rear round nut and spring 4 adjust the gap of bearing 1, so as to protecting Demonstrate,prove the rotating accuracy of main shaft 3.

Reference picture 13, Figure 14, the structure of motor base 14 be, motor base 14 be vertically arranged with two it is parallel T-shaped Groove 2 29, the support of motor 13 is arranged on by fixing screws in the T-slot 2 29 of motor base 14, when fixing screws are unclamped Motor 13 can laterally move along the T-slot 2 29 of motor base 14, for adjusting the elastic of conveyer belt；The both sides of motor base 14 U-typed groove be fixed by screws in the T-slot of main shaft shell 1, can be along T-shaped in main shaft shell 1 when unclamping screw Groove vertically moves, for adjusting the degree of engagement of conveyer belt and electrical machine belt pulley 12.

Upper saddle 16 and the main shaft shell 1 being fixed thereon, motor base 14 can be driven front and rear whole by leading screw 19 Body moves；The achievable 360 degree of rotary motions on upper saddle 16 of main shaft shell 1 simultaneously (are unclamped fastening assembly 1, can be manually rotated Main shaft shell 1)；13 drive motor belt wheel of motor, 12 communicated band drives primary shaft belt pulley 7 to rotate, so as to which main shaft 3 drives emery wheel high Speed rotation, realizes grinding motion.

Device of the present utility model is exactly substantially an accurate small-sized inner circle grinding tool, can realize on-line grinding, number Lathe is controlled using after several years, machine failure rate can be displayed gradually.It need to only be glided during device work of the present utility model Seat 26 is fixed on the work top of Digit Control Machine Tool, and the centre of gyration of main shaft 3 after centering where emery wheel returns with main shaft of numerical control machine tool It is concentric to turn center, its main shaft shell 1 is rotated into corresponding angle, makes to put down with main shaft of numerical control machine tool taper hole bus when it is movable OK；After completing the work of this two step, can start motor makes emery wheel start working, and realizes the online mill of main shaft of numerical control machine tool taper hole Cut.

Claims (5)

1. A kind of 1. spindle taper hole grinder, it is characterised in that：Including lower slider (26), lower slider (26) is fixed on platen On face, lower slider (26) is rolled upwardly through two groups of linear rolling guides and upper saddle (16) and connected, and upper saddle (16) is with Slide is additionally provided with lead-screw drive mechanism between (26)；

   Upper saddle (16) upper surface is provided with main shaft shell (1), and main shaft shell (1) is connected with upper saddle (16)；Main shaft shell (1) The forward upper level in upper surface is provided with through hole, and the through hole both ends are respectively arranged with a bearing one (8), two bearings one (8) In be set with main shaft (3) jointly；Main shaft (3) front end is coaxially connected with No. 2 taper shanks (9) of Mohs, No. 2 taper shank (9) front end peaces of Mohs Equipped with emery wheel, main shaft (3) rear end stretches out through hole and is set with primary shaft belt pulley (7)；Primary shaft belt pulley (7) passes through conveyer belt and motor (13) Electrical machine belt pulley (12) drive connection；

   It is provided with spacer (2), spring (4), match grinding pad one (5) on main shaft (3), spacer (2) bearing one (8) with front end forward Apical grafting, spacer (2) backward with spring (4) apical grafting, spring (4) backward with match grinding pad one (5) apical grafting, match grinding pad one (5) backward with Bearing one (8) apical grafting of rear end, bearing one (8) tail end of rear end are provided with match grinding pad two (6), and match grinding pad two (6) rear end is with after Hold round nut inner face apical grafting, bearing one (8) outer race front face and the front end round nut inner face apical grafting of front end；

   Bearing two (21) is provided with the bearing block (20) of lower slider (26) rear end upper surface, leading screw is set with bearing two (21) (19), leading screw (19) tail end is installed with handwheel (22)；Upper saddle (16) rear end lower surface is connected with upper saddle screw (18), The external screw thread of leading screw (19) circumferential surface is socketed with the screw-internal thread fit of upper saddle screw (18).
2. 2. spindle taper hole grinder according to claim 1, it is characterised in that：The structure of described linear rolling guide It is, including line slideway (25) and sliding block (23), wherein sliding block (23) are fixed on upper saddle (16) lower surface, line slideway (25) Lower slider (26) upper surface is fixed on, multiple row ball is provided between sliding block (23) and line slideway (25).
3. 3. spindle taper hole grinder according to claim 2, it is characterised in that：The structure of described lower slider (26) is, The two protrusion chain-wales held rearward among lower slider (26) are used to install bearing block (20), and both sides groove is led for installing straight line Rail (25) and briquetting (24), wherein both sides groove are used to fix line slideway (25) by inboard row's screw hole, in the outer part One row's screw hole is used to fix briquetting (24).
4. 4. spindle taper hole grinder according to claim 2, it is characterised in that：The structure of described upper saddle (16) is, One group of screw hole among upper saddle (16) rearward is used for slide screw (18) is closed, and middle eccentric position on the front is set There is annular T-slot (27), annular T-slot (27) is used to install main shaft shell (1)；Upper saddle (16) both sides are respectively arranged with two groups Screw hole is used for the sliding block (23) fixed above line slideway (25).
5. 5. spindle taper hole grinder according to claim 2, it is characterised in that：The structure of described main shaft shell (1) is, The horizontal through hole of main shaft shell (1) upper front end is used to install spindle assemblies, the graduated ring of main shaft shell (1) front lower portion band Shape face and the upper plane of upper saddle (16) coordinate, and are fixedly connected by four screw holes with T-shaped screw with upper saddle (16)；It is main Shaft housing (1) rear portion is provided with two parallel T-slots one (28), and two T-slots one (28) are used to fix motor base (14)。