CN203664733U

CN203664733U - Radial drilling machine

Info

Publication number: CN203664733U
Application number: CN201320785186.7U
Authority: CN
Inventors: 李洪伟
Original assignee: SHENYANG JINSHAN MACHINE TOOL Co Ltd
Current assignee: SHENYANG JINSHAN MACHINE TOOL Co Ltd
Priority date: 2013-11-30
Filing date: 2013-11-30
Publication date: 2014-06-25
Anticipated expiration: 2023-11-30

Abstract

The utility model relates to the field of drilling machines, in particular to a radial drilling machine. A worktable of the radial drilling machine is fixed to one end of a base, and an inner stand column is fixed to the other end of the base and sleeved with an outer stand column. One end of a rocker arm is a rocker arm sleeve, the outer stand column is sleeved with the rocker arm sleeve, and a lead screw and nut matching structure is formed by the rocker arm sleeve and the outer stand column through a rocker arm lifting lead screw and a lifting nut which are used in cooperation with each other. A stand column clamping device and a rocker arm lifting safety device are arranged in a reduction gearbox on the top of the outer stand column. The outer end of the rocker arm sleeve at one end of the rocker arm is open and provided with a rocker arm clamping device. Buses are arranged on the upper side of the rocker arm and the lower side of the rocker arm respectively in the form of hyperbolic curves. A spindle gearbox is installed on a rocker arm guide rail of the rocker arm, and a main speed change electromagnetic clutch is arranged in the spindle gearbox. The radial drilling machine is better in performance, simplified in structure, easy to manufacture and operate and user-friendly and saves energy.

Description

Radial drilling machine

Technical Field

The utility model relates to a drilling machine field specifically is a radial drill.

Background

The radial drilling machine is a hole processing device and can be used for processing in various forms such as drilling, reaming, tapping, end face scraping and the like. The clamping structure of each part of the radial drilling machine can be divided into a hydraulic structure and a mechanical structure, the radial drilling machine is convenient and flexible to operate, wide in application range and typical in hole machining performance, is particularly suitable for hole machining of large, medium and small parts with multiple holes in single piece or batch production, and is a common machine tool in a common machining workshop.

As shown in fig. 1(b), the radial drilling machine mainly comprises a base 1, an outer upright post 8, a rocker lifting reduction box 9, a main shaft gearbox 15, a workbench 23, a traditional inner upright post 24, a traditional rocker 25, a traditional rocker guide rail 26 and the like, wherein the workbench 23 is fixed at one end of the base 1, the traditional inner upright post 24 is fixed at the other end of the base 1, the height of the root 108 of the traditional inner upright post is 480mm, the outer upright post 8 is sleeved on the traditional inner upright post 24, the outer upright post 8 is connected with the traditional inner upright post 24 through a matched bearing and a bearing roller, and the outer upright post 8 can easily rotate around the traditional inner upright post 24 by +/-180 degrees. One end of a traditional rocker arm 25 is a rocker arm sleeve 6, the rocker arm sleeve 6 is sleeved outside an outer upright post 8, the rocker arm sleeve 6 and the outer upright post 8 form a screw and nut matching structure through a rocker arm lifting screw 12 and a lifting screw nut 13 which are matched for use, and the rocker arm lifting reduction gearbox 9 at the top of the outer upright post 8 is driven to enable the rocker arm sleeve 6 to move up and down along the outer upright post 8. The rocker arm lifting screw 12 is connected with the outer upright post 8 into a whole, the lifting screw 13 is fixed on a traditional rocker arm 25, and the traditional rocker arm 25 and the outer upright post 8 rotate around a traditional inner upright post 24 together.

The spindle gearbox 15 is a composite component, and is composed of a main drive motor, a spindle and spindle drive mechanism, a feed and shift mechanism, an operating mechanism of a machine tool, and the like. The spindle gearbox 15 is mounted on conventional rocker arm guides 26 (horizontal guides) on the sides of the conventional rocker arms 25 and can be operated by means of a hand wheel 21 in front of the spindle gearbox 15 to move the spindle gearbox 15 along the conventional rocker arms 25 on the conventional rocker arm guides 26.

When machining is performed, the spindle gearbox 15 is fastened to the conventional rocker guide rail 26 by the outer column 8, the spindle gearbox 15, the gearbox clamping device 17, the conventional inner column 24, etc., while the outer column 8 is fastened to the conventional inner column 24 and the conventional rocker arm 25 is fastened to the outer column 8, and then drilling is performed. During drilling, the drill at the output end of the main shaft gearbox 15 performs longitudinal feeding while performing rotary cutting, and the motion form of the drill includes: the main movement of the radial drilling machine and the auxiliary movement of the radial drilling machine, wherein:

the main movement of the radial drilling machine comprises: (1) rotating the main shaft of the radial drilling machine; (2) longitudinal feeding of the main shaft of the radial drilling machine. The auxiliary motion of the radial drilling machine comprises: (1) the rocker arm vertically moves along the outer upright post; (2) the main shaft gearbox moves along the horizontal direction of the rocker guide rail; (3) the rocker arm and the outer upright post rotate around the inner upright post together.

Because the side generating line is the type straight line 27 of raising up under traditional rocking arm 25 of traditional radial drill, can improve the height in space of traditional rocking arm guide rail 26 on traditional rocking arm 25 like this, in order to ensure normal machined height, need reduce the height of traditional inner column root 108, make the height of traditional inner column root 108 fall to 480mm, cause the reduction of inside and outside stand rigidity.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a radial drill reaches the purpose that increases performance, structure simplification, easily make, should use, energy-conservation, light operation.

The technical scheme of the utility model is that:

the utility model provides a radial drill, this radial drill includes base, inner column, rocking arm, outer column, reduction box, main shaft gearbox and workstation, and concrete structure is as follows:

the workbench is fixed at one end of the base, the inner upright column is fixed at the other end of the base, the inner upright column is sleeved with the outer upright column, one end of the rocker arm is a rocker arm sleeve, the rocker arm sleeve is sleeved outside the outer upright column, the rocker arm sleeve and the outer upright column form a screw-nut matching structure through a rocker arm lifting screw and a lifting screw nut which are matched with each other, and a reduction gearbox body at the top of the outer upright column is provided with an upright column clamping device and a rocker arm lifting safety device in a driving mode; the outer end part of the rocker sleeve at one end of the rocker is provided with an opening, the part is provided with a rocker clamping device, the upper side and the lower side of the rocker are both provided with buses, and the buses at the upper side and the lower side adopt hyperbolas; the main shaft gearbox is arranged on a rocker guide rail of the rocker arm, and a main speed change electromagnetic clutch is arranged in the main shaft gearbox.

According to the radial drilling machine, a main shaft gearbox comprises a main shaft double-speed motor and a reinforced main shaft, the main shaft double-speed motor is mounted at the top of the main shaft gearbox, the reinforced main shaft is mounted at the bottom of the main shaft gearbox, a feeding dial, a main shaft feeding stroke fixing device, a manual feeding safety device, a stroke fixing switch box and a hand wheel are arranged in front of the main shaft gearbox, a gearbox clamping device is arranged on the side face of the main shaft gearbox, and the reinforced main shaft of the main shaft gearbox corresponds to a workbench on a base.

The radial drilling machine, the clamping device of the rocker arm includes: right rocking arm clamping part, left rocking arm clamping part, lead screw, coupler, gear motor, motor cabinet, locking bolt, go up increase power pole, screw, slider, guide holder, lower increase power pole, rocking arm sleeve elasticity opening, right rocking arm clamping bracket, left rocking arm clamping bracket, specific structure is as follows:

the outer end of the rocker arm sleeve is divided into a right rocker arm clamping part and a left rocker arm clamping part through a rocker arm sleeve elastic opening, the two parts are arranged oppositely, a right rocker arm clamping support and a left rocker arm clamping support are respectively arranged on the outer sides of the right rocker arm clamping part and the left rocker arm clamping part, the right rocker arm clamping support is matched with the right rocker arm clamping part in shape, the left rocker arm clamping support is matched with the left rocker arm clamping part in shape, the right rocker arm clamping part, the left rocker arm clamping part, the right rocker arm clamping support and the left rocker arm clamping support are all of symmetrical structures, and an upper force boosting rod and a lower force boosting rod are symmetrically arranged between the right rocker arm clamping part and the left rocker arm;

one ends of the left rocker arm clamping support and the left rocker arm clamping part are connected with the upper force increasing rod through locking bolts, and the other ends of the left rocker arm clamping support and the left rocker arm clamping part are connected with the lower force increasing rod through locking bolts; one end of the right rocker arm clamping support and one end of the right rocker arm clamping part are connected with the upper reinforcement rod through locking bolts, and the other end of the right rocker arm clamping support and the other end of the right rocker arm clamping part are connected with the lower reinforcement rod through locking bolts; thereby, an upper pair and a lower pair of locking structures are formed;

the center part of the rocker arm clamping device is penetrated with a screw rod, a reducing motor, a nut, a sliding block and a guide seat connected to the clamping frame, one end of the guide seat is connected with the right rocker arm clamping support, the other end of the guide seat is provided with the sliding block and the nut, one end of the screw rod is connected with the output end of the reducing motor through a connector, and the other end of the screw rod is matched with the nut and the sliding block.

Two travel switch travel control switches I and II are arranged on two sides of the force increasing rod of the radial drilling machine.

Radial drill, the reduction box body that stand clamping device installed in, stand clamping device includes: increase tool arm, lock nut, cross axle, gear motor, gear coupling, internal tooth shaft coupling, lead screw, travel switch, thrust bearing, spring plate, bearing frame, pressure bearing, support radial ball bearing, gyration roller, specific structure is as follows:

the top of the outer upright post is provided with a reduction box body, and the outer upright post is in transmission connection with the inner upright post through a pressure bearing, a radial ball bearing and a rotary roller at the lower end of the inner side of the outer upright post in a bearing seat; the inner upright post penetrates through the outer upright post and extends into the reduction box body, and the extending end of the inner upright post is connected with a force increasing arm in the reduction box body through a locking nut; the speed reducer box is internally provided with a force increasing arm and a speed reducing motor, one end of the force increasing arm is hinged with the speed reducer box, and the other end of the force increasing arm is hinged with the speed reducing motor; the output end of the speed reducing motor is connected with one end of a screw rod through a gear coupling and an internal tooth coupling, the other end of the screw rod is connected with a thrust bearing, and one side of the speed reducing motor is provided with a travel switch.

Radial drill, the main gear electromagnetic clutch of main gear box include: transmission shaft, corotation gear, positive and negative gear, corotation electromagnetic clutch, reversal electromagnetic clutch, motor gear, reversal gear, intermediate gear, electromagnetic clutch of brake, concrete structure is as follows:

three electromagnetic clutches are integrated in the main shaft gearbox: the main shaft speed-changing double-speed motor at the top of the main shaft speed-changing box adopts a double-speed motor, a motor gear is arranged on a motor output shaft of the main shaft speed-changing double-speed motor and is respectively meshed with a gear arranged on the forward electromagnetic clutch and a gear arranged on the reverse electromagnetic clutch, a forward gear is arranged on a transmission shaft of the forward electromagnetic clutch, an intermediate gear and a brake electromagnetic clutch are arranged on an installation shaft of the reverse electromagnetic clutch, and the forward gear and the intermediate gear are oppositely arranged and meshed.

The radial drilling machine, the manual feed safety device includes: the power input shaft, manual regulation swivel nut, pressure cover, interior friction disc, outer friction disc, spline housing, friction disc seat, feed worm axle, the concrete structure is as follows:

the power input shaft is provided with a spline sleeve and a friction plate seat, the outer side of the spline sleeve is provided with an inner friction plate and an outer friction plate on the friction plate seat, the tops of the inner friction plate and the outer friction plate are provided with a manual adjusting threaded sleeve and a pressing sleeve, the friction plate seat is arranged at the top of the electromagnetic feed clutch, the electromagnetic feed clutch is arranged on the shaft of the feed worm, and one end of the shaft of the feed worm corresponds to one end of the power input shaft.

The radial drilling machine is characterized in that the spindle feeding and positioning device comprises: fixed stroke switch box, feed electromagnetic clutch, adjusting pad, travel switch wheel, locating wheel, feed the calibrated scale, specific structure is as follows:

the side surface of the feeding dial is provided with a notch, the notch is provided with a positioning wheel, a travel switch box is internally provided with an adjusting base plate, a travel switch and a travel switch wheel which are matched for use, the travel switch is arranged on the adjusting base plate, the travel switch wheel is arranged on one side of the travel switch, and the positioning wheel corresponds to the travel switch wheel.

Radial drill, the rocking arm lift safeties installs in the reducing gear box internally, include: pressing sleeve, manual adjusting bolt, interior friction disc, outer friction disc, gear friction disc seat, spline housing, concrete structure is as follows:

a spline sleeve and a gear friction plate seat are mounted on the rocker arm lifting screw, an inner friction plate and an outer friction plate are arranged on the outer side of the spline sleeve and on the gear friction plate seat, pads and a pressing sleeve are arranged at the tops of the inner friction plate and the outer friction plate, and the pressing sleeve is mounted at the top end of the rocker arm lifting screw through a manual adjusting bolt.

Radial drill, spindle gearbox adopt strenghthened type main shaft head structure, this structure includes: main shaft cover, draw back formula main shaft head, thrust ball bearing, taper hole double-row cylindrical roller bearing, adjustment pad, main shaft taper hole in, all the other tails are the same as traditional main shaft head structure, and concrete structure is as follows:

one end of the main shaft sleeve is provided with a main shaft flange, a large-caliber inner hole is formed in the main shaft flange, one end, with a taper, of the inward-shrinkage type main shaft head part extends into the large-caliber inner hole of the main shaft sleeve, the inward-shrinkage type main shaft head part is matched with the main shaft sleeve through a thrust ball bearing and a conical hole double-row cylindrical roller bearing, a main shaft conical hole is formed in the center of the inward-shrinkage type main shaft head part, and one end of the main shaft conical hole is located in the center of the.

The utility model has the advantages and beneficial effects that:

1. the utility model relates to a radial drill of unique innovation of mechatronic makes the product have increase performance, structure simplification, easily make, should use, energy-conservation, light characteristics of operation.

2. The utility model discloses the upper and lower side generating line of well rocking arm is the hyperbola (see figure 1 (a)), because the hyperbola can reduce the height of rocking arm guide rail in the space to can increase the height of inner column root, be used for increasing the rigidity of stand, the appearance is pleasing to the eye streamlined.

3. The utility model discloses adopt the double speed motor on radial drill, the double speed motor can realize the switching of the high low rotational speed of main variable speed, both multiplicable variable speed grade, again labour saving and time saving, press the knob in the twinkling of an eye can. Therefore, when the working load is smaller, the low-power gear can be switched to, the high-power gear can be prevented from being used for working for a long time all the time, so that the effects of energy conservation, emission reduction and low carbon are achieved, the operation is flexible, and the operation can be realized by one touch.

4. The utility model discloses a ripe gear motor technique (see figure 2, figure 3), radial drill's inner column, outer stand press from both sides tightly and the rocking arm presss from both sides tightly, and traditional type hydraulic clamping structure is complicated, the utility model discloses a ready-made gear motor technique realizes the clamp of above-mentioned two positions tightly, and is simple, reliable, the easy manufacturing.

5. The utility model discloses an electromagnetic clutch's mature technique (see figure 4) sets up four electromagnetic clutches in main gear box, and the positive reverse switching of main gear adopts three electromagnetic clutches, is respectively: forward rotation, reverse rotation and braking. All the interlocking actions are in one integrated block, the whole action is controlled to be completed (adjustable) within 0.3-0.5 seconds, and the structure replaces the forward and reverse switching action completed by the original whole hydraulic system.

6. The utility model discloses establish drilling, tapping switch and drilling, tapping fixed distance (see figure 5), owing to feed and just reverse all adopt electromagnetic clutch to accomplish, the utility model discloses establish a travel switch on feeding the calibrated scale, this structure has both replaced the complicated machinery fixed distance structure of rocker arm drill in decades, has newly increased automatic tapping again and has returned function, safe and reliable.

7. The utility model discloses feed insurance and rocking arm lift safeties (see fig. 5, fig. 6), two safeties all adopt manual adjustment friction disc, simple structure, and reliable to it is numerous to simplify.

8. The utility model adopts the internal contraction type strong main shaft (see figure 7 (a)) to replace the traditional suspension type main shaft head structure (see figure 7 (b)). The head of the main shaft of the strong main shaft adopts a conical hole double-row cylindrical roller bearing, so that the conical hole of the main shaft is retracted into the front bearing, the overhanging length of the main shaft and a tool is reduced, the cutting rigidity of the main shaft is greatly increased, and the processing precision of a machine tool is improved. The machine tool is more suitable for the use in the die manufacturing industry and the anchorage device manufacturing industry.

Drawings

Fig. 1(a) -1 (b) are schematic structural diagrams of new and old models of a radial drilling machine. Wherein,

FIG. 1(a) shows a radial drilling machine according to the present invention; in the figure, 1 a base; 2, inner upright posts; 3 a rocker arm clamping device; 4 feeding the dial; 5, a main shaft feeding stroke fixing device; 6 rocker arm sleeve; 7 rocker arms; 8, an outer upright post; 10 column clamping device; 11 rocker arm lifting safety devices; 12 rocker arm lifting screw rods; 13 lifting a screw nut; 14 spindle two speed motors; 15 a main shaft gearbox; 16 manual feed safety; 17 a gearbox clamping device; 18 rocker arm guide rails; 19 hyperbolas; 20 a fixed-distance switch box; 21 a hand wheel; 22 a reinforced spindle; 23, a workbench; 107 inner column root; 55 reduction box body.

FIG. 1(b) is a conventional radial drill; in the figure, 1 a base; 6 rocker arm sleeve; 8, an outer upright post; 9 rocker arm lifting reduction box; 12 rocker arm lifting screw rods; 13 lifting a screw nut; 15 a main shaft gearbox; 17 a gearbox clamping device; 21 a hand wheel; 23, a workbench; 24 conventional inner uprights; 25 conventional rocker arms; 26 conventional rocker guide rails; 27 a raise straight line; 108 conventional inner stud root.

Fig. 2 is a schematic view of a rocker arm gripping device. In the figures, 28 the left rocker arm clamp portion; 29 a screw rod; 30 a coupler; 31 a reduction motor; 32 motor seats; 33 locking bolts; 34 an upper force increasing rod; 35 a nut; 36 a slider; 37 a guide seat; 38 travel control switch I; 39 travel control switch II; 40, screws; 41 fixed pins; 42 lower force increasing rods; 43 rocker sleeve spring opening; 44 right rocker arm clamp bracket; 45 left rocker arm clamping brackets; 83 right rocker arm clamp portion.

Fig. 3 is a schematic view of the clamping device for the inner column and the outer column of the present invention. In the figure, 2, an inner upright post; 8, an outer upright post; 46 tool increasing arms; 47 locking the nut; 48 horizontal axis; 49 a reduction motor; 50 gear couplings; 51 an internal tooth coupling; 52, a screw rod; 53 a travel switch; 54 a thrust bearing; 55 a reduction box body; 56 a spring plate; 57 a bearing seat; 58 pressure bearings; 59 support the radial ball bearing; 60 rotating rollers.

Fig. 4 is a schematic configuration diagram of a main transmission electromagnetic clutch in the main transmission case of the present invention. In the figure, a 14-spindle two-speed motor; 61 an angular ball bearing; 62 a drive shaft; 63 a forward rotation gear; 64 positive and negative gears; 65 forward rotation electromagnetic clutch; 66 reverse rotation electromagnetic clutch; 67 bearings; 68 motor gear; 69 a counter gear; 70 bearing; 71 an intermediate gear; 72 brake electromagnetic clutch; 73 bearing.

Fig. 5(a) -5 (b) are schematic diagrams of the spindle feeding positioning device and the manual feeding safety device of the present invention. Wherein fig. 5(a) is a front view; fig. 5(b) is a plan view. In the figure, 4 feeds the dial; 20 a fixed-distance switch box; 74 a power input shaft; 75 manually adjusting the threaded sleeve; 76 pressing and sleeving; 77 feed electromagnetic clutch; 78 an inner friction plate; 79 outer friction plates; 80 spline housing; 81 friction plate seats; 82 a feed worm shaft; 84 adjusting the backing plate; 85 travel switches; 86 travel switch wheels; 87 position the wheels.

Fig. 6 is a schematic view of the rocker arm feeding and lifting safety device of the present invention. In the figure, 12 rocker arm lifting screws; 89 pressing and sleeving; 90 manually adjusting the bolt; 91 pad; 92 inner friction plates; 93 an outer friction plate; 94 gear friction plate seats; and a 95 spline sleeve.

Fig. 7(a) -7 (b) are schematic views of the reinforced spindle head structure of the present invention and a conventional spindle head structure. Wherein,

fig. 7(a) is a reinforced spindle head structure of the present invention; in the figure, 96 spindle sleeves; 97 telescoping spindle head; 98 thrust ball bearing; 99 conical hole double-row cylindrical roller bearing; 100, a conditioning pad; 101, a main shaft taper hole; 109 a spindle flange.

Fig. 7(b) is a conventional spindle head structure. In the figure, 102 a spindle cover; 103 a thrust ball bearing; 104 an angular ball bearing; 105 an overhanging spindle head; 106 main shaft taper hole.

Detailed Description

1. As shown in fig. 1(a) and 3, the radial drilling machine mainly comprises a base 1, an inner upright post 2, a rocker arm 7, an outer upright post 8, a reduction box 55, a main shaft gearbox 15, a workbench 23 and the like, and has the following specific structure:

the workstation 23 is fixed in the one end on base 1, and the other end at base 1 is fixed to inner column 2, and the height of inner column root 107 is 600mm, and the cover has outer column 8 on inner column 2, and outer column 8 can revolve 180 degrees around inner column 2. The one end of rocking arm 7 is rocking arm sleeve 6, and rocking arm sleeve 6 suit forms screw nut cooperation structure in the outer stand 8 outside, rocking arm sleeve 6 and outer stand 8 through rocking arm lifting screw 12 and the lifting screw nut 13 of supporting use, drives through the gear box 55 at 8 tops of outer stand, makes rocking arm sleeve 6 can follow outer stand 8 and do and reciprocate, sets up stand clamping device 10, rocking arm lift safeties 11 in the gear box 55. In order to facilitate the fastening of the rocker sleeve 6 at one end of the rocker arm 7 to the outer upright 8, the outer end of the rocker sleeve 6 is open, in which the rocker arm clamping device 3 is arranged. The rocker arm lifting screw 12 and the outer upright post 8 are connected into a whole, the lifting screw 13 is fixed on the rocker arm 7, and the rocker arm 7 and the outer upright post 8 rotate around the inner upright post 2 together.

The main shaft gearbox 15 is a composite part and comprises a main shaft double-speed motor 14, a reinforced main shaft 22, a main shaft transmission mechanism (see figure 4), a feeding and speed changing mechanism, an operating mechanism of a machine tool and the like, wherein the main shaft double-speed motor 14 is installed at the top of the main shaft gearbox 15, the reinforced main shaft 22 is installed at the bottom of the main shaft gearbox 15, a feeding dial 4, a main shaft feeding stroke fixing device 5, a manual feeding safety device position 16, a stroke fixing switch box 20 and a hand wheel 21 are arranged in front of the main shaft gearbox 15, and a gearbox clamping device 17 is arranged on the side surface of the main shaft gearbox. The main shaft gearbox 15 is arranged on a rocker arm guide rail 18 (horizontal guide rail) of the rocker arm 7, and can be operated through a hand wheel 21 in front of the main shaft gearbox 15, so that the main shaft gearbox 15 moves linearly on the rocker arm guide rail 18 along the rocker arm 7, and an enhanced main shaft 22 of the main shaft gearbox 15 corresponds to a workbench 23 on the base 1. When the device works, a workpiece is placed on the workbench 23 or the base 1 for processing, or the rocker arm 7 is rotated out of the plane of the base 1 to enlarge the processing range. Therefore, the radial drilling machine can drill and process vertical holes at any position in a cylindrical three-dimensional space.

When machining is performed, the main gear box 15 is fastened to the rocker arm guide 18 of the rocker arm by means of the gear box clamp 17, while the outer column 8 is fastened to the inner column 2 by means of the column clamp 10 (see fig. 3), and the rocker arm 7 is fastened to the outer column 8 by means of the rocker arm clamp 3 (see fig. 2) mounted on the outer end portion of the rocker arm sleeve 6, and then drilling is performed. During drilling, the drill at the main shaft output end of the main shaft transmission 15 performs longitudinal feed while performing rotary cutting, and the feed amount is controlled by the main shaft feed positioning device 5 and the positioning switch box 20.

The utility model discloses in, in order to increase radial drill system processing strength, the upper and lower side of rocking arm 7 all sets up the generating line, and upper and lower side generating line adopts hyperbola 19, because hyperbola 19 can reduce rocking arm guide rail 18 of rocking arm 7 in the height in space to can increase the height to 600mm of inner column root 107, outer column 8 suit can increase the support rigidity of inner and outer column by a wide margin on inner column 2. The utility model discloses in, travel switch can be mechanical type limit switch or proximity switch etc. commonly used travel switch.

2. As shown in fig. 1(a) and 2, the rocker arm pinching device 3 mainly includes: the right rocker arm clamping part 83, the left rocker arm clamping part 28, the screw 29, the coupler 30, the speed reducing motor 31, the motor base 32, the locking bolts 33 (4), the upper force increasing rod 34, the screw nut 35, the sliding block 36, the guide base 37, the stroke control switch I38, the stroke control switch II 39, the screws 40, the fixing pin 41, the lower force increasing rod 42, the rocker arm sleeve elastic opening 43, the right rocker arm clamping bracket 44, the left rocker arm clamping bracket 45 and the like, and the specific structure is as follows:

the protruding part of the outer end of the rocker arm sleeve 6 is divided into a right rocker arm clamping part 83 and a left rocker arm clamping part 28 through a rocker arm sleeve elastic opening 43, the two parts are oppositely arranged, a right rocker arm clamping bracket 44 and a left rocker arm clamping bracket 45 are respectively arranged on the outer sides of the right rocker arm clamping part 83 and the left rocker arm clamping part 28, the right rocker arm clamping bracket 44 is matched with the right rocker arm clamping part 83 in shape, the left rocker arm clamping bracket 45 is matched with the left rocker arm clamping part 28 in shape, the right rocker arm clamping part 83, the left rocker arm clamping part 28, the right rocker arm clamping bracket 44 and the left rocker arm clamping bracket 45 are all of a symmetrical structure, and an upper force boosting rod 34 and a lower force boosting rod 42 are symmetrically arranged between the right rocker arm clamping part 83 and;

one ends of the left rocker arm clamping bracket 45 and the left rocker arm clamping part 28 are connected with the upper force increasing rod 34 through the locking bolt 33, and the other ends of the left rocker arm clamping bracket 45 and the left rocker arm clamping part 28 are connected with the lower force increasing rod 42 through the locking bolt 33; one ends of the right rocker arm clamping bracket 44 and the right rocker arm clamping part 83 are connected with the upper force increasing rod 34 through a locking bolt 33, and the other ends of the right rocker arm clamping bracket 44 and the right rocker arm clamping part 83 are connected with the lower force increasing rod 42 through the locking bolt 33; thus, two pairs of upper and lower locking structures are formed.

The screw rod 29, the speed reducing motor 31, the nut 35, the slider 36 and the guide seat 37 connected to the right rocker clamping bracket 44 are arranged in the center of the rocker clamping device 3 in a penetrating manner, one end of the guide seat 37 is connected with the right rocker clamping bracket 44, the slider 36 and the nut 35 are arranged at the other end of the guide seat 37, and the speed reducing motor 31 is connected to the fixed plane at one end of the left rocker clamping bracket 45 through the motor seat 32 by the screw 40 and the fixed pin 41. One end of the screw 29 is connected with the output end of the speed reducing motor 31 through a coupler 30, the other end of the screw 29 is in threaded fit with the nut 35 and the sliding block 36, and the speed reducing motor 31 drives the left rocker arm clamping part 28 and the right rocker arm clamping part 83 to clamp the outer upright 8 or separate from the outer upright 8 through the matching structure of the screw 29 and the nut 35.

When the speed reducing motor 31 rotates forwards or reversely, namely the coupler 30 and the lead screw 29 rotate, the push and wire drawing nut 35 and the slide block 36 can do linear motion in the guide seat 37 to push the upper force increasing rod 34 and the lower force increasing rod 42 to swing, force is increased through the lever action, and the four locking bolts 33 are pulled, so that the left rocker arm clamping support 45 and the right rocker arm clamping support 44 move separately or closely, and the rocker arm sleeve can clamp or loosen the outer column. The clamping force is realized by adjusting two travel switch travel control switches I38 and II 39 on two sides of the movable force-increasing rod.

3. As shown in fig. 3, the column clamping device 10 for clamping the inner column 2 and the outer column 8 is installed in the reduction case 55 of fig. 1, and mainly includes: the cutter-increasing arm 46, the locking nut 47, the transverse shaft 48, the speed-reducing motor 49 (6 IKA-S), the gear coupling 50, the internal gear coupling 51, the screw rod 52, the travel switch 53, the thrust bearing 54, the spring plate 56, the bearing seat 57, the pressure bearing 58, the supporting radial ball bearing 59, the rotary roller 60 and the like have the following specific structures:

the top of the outer column 8 is provided with a reduction box 55, and the outer column 8 is in transmission connection with the inner column 2 through a pressure bearing 58 in a bearing seat 57, a radial ball bearing 59 for supporting and a rotary roller 60 at the lower end of the inner side of the outer column 8. When the inner column 2 and the outer column 8 are in a loose state, the spring plate 56 on the top of the bearing seat 57 and on the outer side of the inner column 2 is supported on the reduction box body 55, so that the outer column 8 can easily rotate relatively. The inner upright post 2 penetrates through the outer upright post 8 and extends into the reduction box body 55, and the extending end of the inner upright post 2 is connected with a force increasing arm 46 in the reduction box body 55 through a locking nut 47; the speed reducing box body 55 is internally provided with a force increasing arm 46 and a speed reducing motor 49, one end of the force increasing arm 46 is hinged with the speed reducing box body 55, and the other end of the force increasing arm 46 is hinged with the speed reducing motor 49. The output end of the speed reducing motor 49 is connected with one end of a screw rod 52 through a gear coupling 50 and an internal gear coupling 51, the other end of the screw rod 52 is connected with a thrust bearing 54, and one side of the speed reducing motor 49 is provided with a travel switch 53. Therefore, the speed reducing motor 49 drives the thrust bearing 54 to apply pressure to the speed reducing box body 55, the outer upright post 8 is further pressed to the inner upright post 2 and locked by the corresponding locking inclined surfaces between the inner upright post 2 and the outer upright post 8, the locking force is realized by adjusting the travel switch 53, and at the moment, the radial drilling machine enters a working state.

4. As shown in fig. 1 and 4, the main shift electromagnetic clutch in the main shift box 15 mainly includes: the radial ball bearing 61, the transmission shaft 62, the forward rotation gear 63, the forward rotation gear 64, the forward rotation electromagnetic clutch 65 (DLM 3), the reverse rotation electromagnetic clutch 66 (DLM 3), the bearing 67, the motor gear 68, the reverse rotation gear 69, the bearing 70, the intermediate gear 71, the brake electromagnetic clutch 72 (DLM 3), the bearing 73 and the like, and the specific structure is as follows:

three electromagnetic clutches are integrated in the main shaft gearbox 15: the spindle double-speed motor 14 on the top of the spindle gearbox 15 adopts a double-speed motor, a motor gear 68 is arranged on a motor output shaft of the spindle double-speed motor 14, the motor gear 68 is respectively meshed with a forward gear 64 arranged on the forward electromagnetic clutch 65 and a reverse gear 69 arranged on the reverse electromagnetic clutch 66, a forward gear 63 is arranged on a transmission shaft 62 of the forward electromagnetic clutch 65, an intermediate gear 71 and a brake electromagnetic clutch 72 are arranged on an installation shaft of the reverse electromagnetic clutch 66, and the forward gear 63 and the intermediate gear 71 are oppositely arranged and meshed. Wherein, the two ends of the transmission shaft 62 are respectively matched with the main gear box 15 through the radial ball bearings 61, and the two ends of the mounting shaft of the reverse electromagnetic clutch 66 are respectively matched with the main gear box 15 through the

bearings

67, 70 and 73.

When the motor gear 68 rotates counterclockwise, if the forward rotation electromagnetic clutch 65 is turned on, the transmission shaft 62 rotates clockwise. When the forward electromagnetic clutch 65 is powered off, the brake electromagnetic clutch 72 works for 0.3 second, and then is powered off (at the moment, each transmission shaft stops rotating), the reverse electromagnetic clutch 66 is powered on immediately, power is transmitted to the gear 63 through the intermediate gear 71, and the transmission shaft 62 rotates reversely.

5. As shown in fig. 1, 5(a) -5 (b), the manual feed safety device 16 mainly includes: the power input shaft 74, the manual adjusting screw sleeve 75, the pressing sleeve 76, the inner friction plate 78, the outer friction plate 79, the spline sleeve 80, the friction plate seat 81, the feed worm shaft 82 and the like have the following specific structures:

the feed electromagnetic clutch 77 is arranged at the feed dial 4, the main shaft feed stop motion device 5, the manual feed safety device 16 and the stop motion switch box 20 in the main shaft gearbox 15 shown in fig. 1, a spline sleeve 80 and a friction sheet seat 81 are arranged on the power input shaft 74, an inner friction sheet 78 and an outer friction sheet 79 are arranged on the outer side of the spline sleeve 80 on the friction sheet seat 81, a manual adjusting screw sleeve 75 and a pressing sleeve 76 are arranged at the tops of the inner friction sheet 78 and the outer friction sheet 79, the friction sheet seat 81 is arranged at the top of the feed electromagnetic clutch 77, the feed electromagnetic clutch 77 is arranged on the feed worm shaft 82, and one end of the feed worm shaft 82 corresponds to one end of the power input shaft 74. The manual adjustment screw 75 is rotated by hand, and pressure is applied to the inner friction plate 78 and the outer friction plate 79 through the pressing sleeve 76, so that when the torque of the feed worm shaft 82 is overloaded, the friction plates slip, and the feed is stopped, thereby protecting the feed mechanism.

The spindle feeding stopper 5 mainly includes: the fixed-distance switch box 20, the feeding electromagnetic clutch 77 (DLM 3), the adjusting shim plate 84, the travel switch 85, the travel switch wheel 86, the positioning wheel 87, the feeding dial 4 and the like have the following specific structures:

the side surface of the feeding dial 4 is provided with a notch, the notch is provided with a positioning wheel 87, the fixed-distance switch box 20 is internally provided with an adjusting backing plate 84, a travel switch 85 and a travel switch wheel 86 which are matched for use, the travel switch 85 is arranged on the adjusting backing plate 84, the travel switch wheel 86 is arranged on one side of the travel switch 85, and the positioning wheel 87 corresponds to the travel switch wheel 86.

A positioning wheel 87 which can be moved or fixed by hands is arranged outside the notch of the feeding dial 4, when the feeding dial 4 is rotated (a processing depth scale line is marked on the feeding dial 4, and the drawing shows a feeding stopping state) to preset the feeding depth, the positioning wheel 87 is locked, and the motor feeding can be realized. When the positioning wheel 87 is mechanically fed along with the feeding dial 4 and presses the travel switch wheel 86 up, the electromagnetic feeding clutch 77 is disconnected and the feeding is stopped. When the positioning wheel 87 presses the stroke switch wheel 86 when the fixed-stroke tapping is set, the three electromagnetic clutches (see the forward electromagnetic clutch 65, the reverse electromagnetic clutch 66, and the brake electromagnetic clutch 72 in fig. 4) in the spindle transmission case 15 continuously work and the spindle reversely retracts.

6. As shown in fig. 6, the rocker arm lift safety device 11 is installed in the reduction box 55 of fig. 1, and mainly includes: pressing sleeve 89, manual adjusting bolt 90, pad 91, interior friction disc 92, outer friction disc 93, gear friction disc seat 94, spline housing 95 etc. and the concrete structure is as follows:

a spline sleeve 95 and a gear friction plate seat 94 are mounted on the rocker lifting screw 12, an inner friction plate 92 and an outer friction plate 93 are arranged on the outer side of the spline sleeve 95 on the gear friction plate seat 94, a pad 91 and a pressing sleeve 89 are arranged at the tops of the inner friction plate 92 and the outer friction plate 93, and the pressing sleeve 89 is mounted on the top end of the rocker lifting screw 12 through a manual adjusting bolt 90. When the manual adjusting bolt 90 is manually rotated, the pressure sleeve 89 presses the inner friction plate 92 and the outer friction plate 93 through the pad 91 to adjust the torque borne by the rocker arm lifting screw 12, the pressure of the pressure sleeve 89 is determined after a rocker arm lifting test, and if the rocker arm 7 cannot lift accidentally (namely, when the rocker arm lifting screw 12 works with excessive torque), the friction plates slip, so that the lifting device is protected.

7. As shown in fig. 7(a), the reinforced spindle head structure of the present invention mainly includes: heavy-calibre main shaft cover 96, draw back formula main shaft head 97, thrust ball bearing 98, taper hole biserial cylindrical roller bearing 99, adjusting pad 100, main shaft taper hole 101 etc. all the other tails are the same as traditional main shaft head structure, and concrete structure is as follows:

one end of the main shaft sleeve 96 is provided with a main shaft flange 109, a large-caliber inner hole is formed in the main shaft flange 109, one end, with taper, of the inward-shrinkage type main shaft head 97 extends into the large-caliber inner hole of the large-caliber main shaft sleeve 96, the inward-shrinkage type main shaft head 97 and the large-caliber main shaft sleeve 96 are matched through a thrust ball bearing 98 and a conical hole double-row cylindrical roller bearing 99, an adjusting pad 100 is arranged between the thrust ball bearing 98, the conical hole double-row cylindrical roller bearing 99 and the inward-shrinkage type main shaft head 97, a main shaft conical hole 101 is formed in the center of the inward-shrinkage type main shaft head 97, and one end of the main shaft conical hole 101. In this embodiment, the outer diameter of the main shaft flange 109 at the end of the main shaft sleeve 96, which is matched with the retractable main shaft head 97, is increased, so that the length of the retractable main shaft head 97 extending into the large-diameter main shaft sleeve 96 is increased, and the portion of the retractable main shaft head 97 extending into the main shaft sleeve 96 is in a taper structure with a diameter gradually decreasing from phi 65mm to phi 40 mm.

The utility model has the main characteristics that: the diameter of the exposed end of the spindle sleeve 96 is increased, the diameter of the conical hole double-row cylindrical roller bearing 99 in the inward-shrinkage spindle head 97 is increased, the specification of the thrust ball bearing 98 is increased, and the inward-shrinkage spindle head 97 and the spindle conical hole 101 are shrunk into the inner hole of the high-strength conical hole double-row cylindrical roller bearing 99, so that the overhanging length of the inward-shrinkage spindle head 97 is greatly reduced, and the rigidity of the spindle is improved. The front bearing of the main shaft adopts the conical hole double-row cylindrical roller bearing 99 with high load capacity, so that the main shaft can bear larger load and the working stability and the processing precision are improved.

As shown in fig. 7(b), the spindle head structure of the conventional radial drilling machine mainly includes: the main shaft sleeve 102, the thrust ball bearing 103, the radial ball bearing 104, the overhanging main shaft head 105, the main shaft taper hole 106 and the like have the following specific structures:

the main shaft sleeve 102 and the overhanging main shaft head 105 have the same outer diameter, the main shaft sleeve 102 is matched with the overhanging main shaft head 105 through a thrust ball bearing 103 and a radial ball bearing 104, and a main shaft taper hole 106 is positioned outside the main shaft sleeve 102.

As can be seen from comparison between fig. 7(a) and fig. 7(b), the front bearing radial ball bearing 104 and the front journal of the conventional overhanging spindle head 105 of the spindle of the same specification are much smaller than the inward-retracting spindle head 97 of the reinforced spindle head (see fig. 7 (a)), and the spindle taper hole 106 for installing the tool is extended forward, so that the overhanging length of the overhanging spindle head 105 is increased, and the cutting rigidity is reduced.

Taking the Z3050 specification as an example, the bearing capacities of the spindle heads used for the two spindles are compared as shown in the following table:

the result shows, the utility model discloses radial drill of the unique innovation of mechatronic has the characteristics that increase performance, structure are simplified, easily make, should use, energy-conservation, light operation, specifically as follows:

one, whole machine appearance change

The generatrix of the upper side and the lower side of the rocker arm is hyperbolic, and the traditional type is a rising type. See fig. 1. The height of the rocker guide rail in space can be reduced due to the hyperbola, so that the height of the root of the upright is increased, and the rigidity of the upright is increased.

Secondly, a double-speed motor is adopted on the radial drilling machine

The double-speed motor is adopted to realize the switching of the high and low rotating speeds of the main variable speed, so that the gear level can be increased, time and labor are saved, and the electric button can be pressed instantly. Thus, the utility model can be used for most of the service time and the load is below 70% (the drill hole is drilled at

And when the power is lower), the energy-saving gear can work by using a green energy-saving gear with the power of 2.2 kw. When the load exceeds 70% (drilling at

In the above time), a red strong gear with the power of 2.8kw is selected for work. Therefore, the device can avoid working in a high-power state all the time so as to achieve the effects of energy conservation, emission reduction and low carbon, and is flexible to operate and can be operated at once.

Thirdly, mature small-sized speed reducer technology is adopted

Radial drill's inner column, outer column press from both sides tightly and the rocking arm presss from both sides tightly, and traditional type hydraulic clamping structure is complicated, the utility model discloses a ready-made small-size speed reducer technique realizes the clamp of above-mentioned two positions tightly, and is simple, reliable, the easy manufacturing. See fig. 2, 3.

Fourth, adopt the mature technology of the electromagnetic clutch

(1) The utility model discloses an electromagnetic clutch four, the positive reverse switching of main variable speed adopts three electromagnetic clutch, is respectively: positive rotation, braking and reverse rotation. The working process is as follows: when the forward electromagnetic clutch is switched on to work, the brake and the reverse electromagnetic clutch are switched off. When the command is reverse rotation work, the electromagnetic clutch for forward rotation is powered off, the electromagnetic clutch for brake is powered off after being powered on for 0.3 second, the main shaft can be decelerated and stopped instantly, and the electromagnetic clutch for reverse rotation works to realize reverse rotation. All the electromagnetic clutches are interlocked in one integrated block, the whole action is completed (adjustable) within 0.3-0.5 seconds, and the structure replaces the forward and reverse switching action completed by the original whole hydraulic system, as shown in figure 4.

(2) Drilling, tapping switch and drilling, tapping fixed distance, owing to feed and just reverse all adopt electromagnetic clutch to accomplish, the utility model discloses establish a travel switch on feeding the calibrated scale, when main shaft work feeds to the predetermined depth, the travel switch that the collision was transferred: when the change-over switch is adjusted to the drilling gear, the feeding electromagnetic clutch is powered off, the spindle stops feeding and retracts manually (the spindle still rotates), and the drilling gear is shown in fig. 4 and 5. And secondly, when the change-over switch is adjusted to a tapping working gear, the three electromagnetic clutches of the main speed change are started immediately, and the main shaft reverses and automatically retracts. The structure not only replaces a complicated mechanical fixed-distance structure of a radial drilling machine for decades, but also has a newly added automatic tapping and returning function.

Improved feeding safety and rocker arm lifting safety device

The two safety devices adopt manual friction plate adjustment, and the structure is simple and reliable, so that the safety device is simple and complex. See fig. 5, 6.

Sixth, adopt the strong type main spindle head structure

The utility model discloses a powerful spindle head structure of formula that contracts in replaces traditional exposed spindle head structure. Because the head part of the main shaft adopts the 3182113 conical hole double-row cylindrical roller bearing, the tool cone tail is retracted into the front bearing, the overhanging length of the main shaft and the tool is reduced, the cutting rigidity of the main shaft is greatly increased, and the processing precision of the machine tool is improved. Making the machine more suitable for use in the mould manufacturing industry and anchor manufacturing, see figure 7.

Claims

1. The utility model provides a radial drill, its characterized in that, this radial drill includes base, inner column, rocking arm, outer column, reduction box, main shaft gearbox and workstation, and concrete structure is as follows:

2. The radial drilling machine according to claim 1, wherein the spindle gearbox comprises a spindle two-speed motor and a reinforced spindle, the spindle two-speed motor is mounted at the top of the spindle gearbox, the reinforced spindle is mounted at the bottom of the spindle gearbox, a feed dial, a spindle feed stroke setting device, a manual feed safety device position, a stroke setting switch box and a hand wheel are arranged in front of the spindle gearbox, a gearbox clamping device is arranged on the side surface of the spindle gearbox, and the reinforced spindle of the spindle gearbox corresponds to the workbench on the base.

3. The radial drill of claim 1, wherein the rocker clamping device comprises: right rocking arm clamping part, left rocking arm clamping part, lead screw, coupler, gear motor, motor cabinet, locking bolt, go up increase power pole, screw, slider, guide holder, lower increase power pole, rocking arm sleeve elasticity opening, right rocking arm clamping bracket, left rocking arm clamping bracket, specific structure is as follows:

4. The radial drill press as claimed in claim 1, wherein the power lever is provided on both sides with two travel switch travel control switches i, ii.

5. The radial drill press as claimed in claim 1, wherein the column clamping means is mounted in the reduction box body, the column clamping means comprising: increase tool arm, lock nut, cross axle, gear motor, gear coupling, internal tooth shaft coupling, lead screw, travel switch, thrust bearing, spring plate, bearing frame, pressure bearing, support radial ball bearing, gyration roller, specific structure is as follows:

6. The radial drill press of claim 1, wherein the main transmission electromagnetic clutch in the main transmission comprises: transmission shaft, corotation gear, positive and negative gear, corotation electromagnetic clutch, reversal electromagnetic clutch, motor gear, reversal gear, intermediate gear, electromagnetic clutch of brake, concrete structure is as follows:

7. The radial drill of claim 2, wherein the manual feed safety comprises: the power input shaft, manual regulation swivel nut, pressure cover, interior friction disc, outer friction disc, spline housing, friction disc seat, feed worm axle, the concrete structure is as follows:

8. The radial drill of claim 2, wherein the spindle feed positioning means comprises: fixed stroke switch box, feed electromagnetic clutch, adjusting pad, travel switch wheel, locating wheel, feed the calibrated scale, specific structure is as follows:

9. The radial drill press of claim 1, wherein the rocker arm lift guard is mounted within the reduction gearbox body and comprises: pressing sleeve, manual adjusting bolt, interior friction disc, outer friction disc, gear friction disc seat, spline housing, concrete structure is as follows:

10. The radial drill of claim 1, wherein the spindle gearbox is of a reinforced spindle head construction comprising: main shaft cover, draw back formula main shaft head, thrust ball bearing, taper hole double-row cylindrical roller bearing, adjustment pad, main shaft taper hole in, all the other tails are the same as traditional main shaft head structure, and concrete structure is as follows: