CN203817779U - Multi-station power head with floating taper pin positioning - Google Patents

Abstract

The utility model provides a multi-station power head with floating taper pin positioning. The power head is composed of a lifting indexing mechanism, a transmission mechanism and a positioning mechanism, a main component of the lifting indexing mechanism is composed of an upper body, a middle body and a lower body, and the power head is characterized in that upper body lifting and indexing are achieved through motion cooperation of a linear piston and a rotary piston. The positioning mechanism is a floating taper pin device, when indexing of the upper body is completed, and the upper body falls down, a taper pin is inserted into a taper hole matched with the taper pin, and positioning is achieved. The transmission mechanism is mainly composed of a guide gear, a gear, a transmission shaft, a belt wheel and a plurality of tool components. The tool components are evenly distributed and arranged on the upper body along the circumference, the gear is meshed with a gear of one tool component, the power is input to the transmission shaft and the gear through the belt wheel, and the tool components are driven to do rotation motion. According to the power head, multi-station conversion and precise positioning are achieved, the machining difficulty is small, repeated positioning is high in precision, operation is convenient, and efficiency is high.

Description

The Multi-position power head that the taper pin that floats is located

Technical field

The utility model relates to the Multi-position power head for building-block machine, the Multi-position power head of the taper pin location of especially floating.

Background technology

Multi-position power head is the important component part of building-block machine, its accuracy class, and especially positioning precision and tool change time when tool changing affects Digit Control Machine Tool machining accuracy and efficiency.On automatic process line, conventional unit head generally can only be installed a cutter, completes the processing of a procedure.Multi-position power head can be installed much knives tool, can realize the processing of multiple working procedure on a station.Multi-position power head transfer platform equally needs transposition, by different cutter changings to Working position.What turntable was the most frequently used has straight pin location, and conventional is instead by location in addition, can adopt fluted disc or steel ball location when high accuracy.Round pin positioning precision is not high, and positioning and rigid is poor, after locating surface wearing and tearing, cannot compensate, and can not keep enduringly positioning precision to cause.Anti-more difficult by the automatic adjustment of location indexing station number, be difficult to improve calibration positioning precision.Though and fluted disc or steel ball location can obtain degree of precision, economy is not high, difficulty of processing is large.

Summary of the invention

The purpose of this utility model is to provide the Multi-position power head of a kind of unsteady taper pin location, has advantages of compact conformation, positioning precision is high, locating surface is not easy to wear, easy to maintenance.

For this reason, the technical solution of the utility model is as follows: the Multi-position power head of the taper pin location of floating, form by lifting indexing mechanism, transmission mechanism and detent mechanism, and it is characterized in that:

The described indexing mechanism that lifts, mainly formed by upper body, middle body, lower body, jackshaft, bearing, rotary piston, link block, straight line piston, cylinder body, sleeve, disk spring, transposition screw, connecting bolt, trip bolt, sealing ring, by trip bolt, cylinder body is fixed on upper body, straight line piston is fixed on jackshaft by connecting bolt; Straight line piston below has transposition hole, and transposition screw is fixed on upper body, and in the time that lift upper body, transposition screw can insert in the transposition hole of straight line piston below; Disk spring is contained in straight line piston below, and disk spring is enclosed within on sleeve, and jacket casing is on jackshaft; In the middle of jackshaft and connecting bolt, have oil through, communicate with the oilhole of lower body; Jackshaft is arranged in middle body and lower body by bearing, can in middle body and lower body, do gyration; Rotary piston is connected in jackshaft lower end, and link block is radially housed on rotary piston, and link block leads in the groove of rotary piston, in the time that rotary piston rotates, at the effect lower seal pin isolation rotary piston both sides of centrifugal force pressure oil; Middle body is fixedly connected with lower body, and sealing ring is housed on faying face; Like this, form an oscillating oil cylinder by middle body, lower body, rotary piston, link block, sealing ring, rotary piston can swing around the center line of jackshaft under the driving of its both sides pressure oil;

Described detent mechanism, is the taper pin device that floats, and is mainly made up of taper pin, spring, screwed plug, and the hole on taper pin and middle body matches, and spring is between taper pin and screwed plug, and original state spring has pretightning force, and screwed plug is fixed on middle body;

Described transmission mechanism, mainly be made up of guide gear, guide finger, gear, power transmission shaft, belt wheel and multiple tool parts, power transmission shaft is supported in lower body, and guide gear is fixed by guide finger and gear, gear is fixed on one end of power transmission shaft by key, the other end of power transmission shaft is fixedly connected with belt wheel; Multiple tool parts are uniformly distributed along the circumference and are contained on upper body, and gear is meshed with the gear being wherein positioned on the tool parts of operating position.

Further restriction to such scheme is: the quantity of described detent mechanism is 2.

Operation principle of the present utility model:

When pressure oil from lower body oilhole in the time that jackshaft and connecting bolt enter the cylinder body of straight line piston top, pressure oil promotes cylinder body and moves upward, thereby in drive, compression disk spring moves upward, realize the motion of lifting of upper body, now transposition screw inserts in the transposition hole of straight line piston below, for gyration is prepared;

After upper body is lifted and put in place, oscillating oil cylinder left chamber oil-feed, promotes rotary piston and swings an angle (six stations are 60 °) to the right, and rotary piston drives an angle of straight line piston rotation by jackshaft.At this moment, upper body is in lifting status, and insert in the transposition hole of straight line piston below transposition screw one end, and the other end is fixed on upper body, and straight line piston will drive upper body with respect to an angle of middle body rotation.The uniform multiple tool parts (six stations are 6) that are equipped with on upper body, in the time of a upper body angle of rotation (six stations are 60 °), complete upper body transposition tool changing movement; In the time that the pressure of pressure oil in lower body oilhole is removed, upper body falls at the elastic force of disk spring and under the effect of gravity, and the transposition hole of straight line piston below separates with transposition screw.After upper body falls and puts in place, oscillating oil cylinder right chamber oil-feed, promotes rotary piston and swings 60 ° (six stations) left and reset, for next transposition circulation is prepared.At this moment because the transposition hole of straight line piston below separates with transposition screw, does not rotate with jackshaft and rotary piston upper body;

When upper body transposition completes while falling, taper pin inserts in the taper hole matching with it, and location is carried out at gyratory directions in upper body;

Power is inputted from belt wheel by belt, and power is inputted from belt wheel, and to power transmission shaft, then to gear, gear is meshed with the gear on tool parts, drives tool parts to do gyration.The effect of guide gear is that, in the time of unit head transposition, the gear on tool parts can be meshed with the gear on power transmission shaft smoothly.

Beneficial effect: this unsteady taper pin location Multi-position power head adopts and lifts rotating mechanism, transmission mechanism and detent mechanism, conversion and the precise positioning of having realized multistation, difficulty of processing is little, and repetitive positioning accuracy is high, precision stability is good, easy to operate, efficiency is high.

Brief description of the drawings

Fig. 1 is main cutaway view of the present utility model.

Fig. 2 is that the K of Fig. 1 is to view.

Fig. 3 is the cutaway view along B-B shown in Fig. 1.

Fig. 4 is the cutaway view along A-A shown in Fig. 3.

Shown in figure: 1 is tool parts; 2 is trip bolt; 3 is straight line piston; 4 is sleeve; 5 is cylinder body; 6 is connecting bolt; 7 is disk spring; 8 is transposition hole; 9 is transposition screw; 10 is upper body; 11 is bearing; 12 is guide gear; 13 is guide finger; 14 is middle body; 15 is gear; 16 is rotary piston; 17 is jackshaft; 18 is link block; 19 is oilhole; 20 is lower body; 21 is power transmission shaft; 22 is belt wheel; 23 is sealing ring A; 24 is screwed plug; 25 is the left chamber of oscillating oil cylinder; 26 is sealing ring B; 27 is sealing ring C; 28 is the right chamber of oscillating oil cylinder; 29 is spring; 30 is taper pin.

Detailed description of the invention

As shown in Figure 1, Figure 2, Figure 3, Figure 4, further describing the taper pin that floats, to locate the frame for movement of six station unit heads as follows: Fig. 1 is that the utility model taper pin that floats is located the front view of six station unit heads; Fig. 2 is that the K of Fig. 1 is to view; Fig. 3 is the cutaway view along B-B shown in Fig. 1, and it has shown structure and the distribution of indexing mechanism; Fig. 4 is the cutaway view along A-A shown in Fig. 3, the structure that it has shown detent mechanism.

Unsteady taper pin is located six station unit heads, mainly forms by lifting indexing mechanism, transmission mechanism and detent mechanism three great institutions;

Lift indexing mechanism as shown in Figure 1, 2, 3, mainly by mainly being formed by upper body 10, middle body 14, lower body 20, jackshaft 17, bearing 11, rotary piston 16, link block 18, straight line piston 3, cylinder body 5, sleeve 4, disk spring 7, transposition screw 9, connecting bolt 6, trip bolt 2, sealing ring (sealing ring A23, sealing ring B26, sealing ring C27);

Trip bolt 2 is fixed on cylinder body 5 on upper body 10, straight line piston 3 is fixed on jackshaft 17 by connecting bolt 6, and straight line piston 3 belows have transposition hole 8, and transposition screw 9 is fixed on upper body 10, in the time that lift upper body 10, transposition screw 9 can insert in the transposition hole 8 of straight line piston 3 belows; Disk spring 7 is housed below straight line piston 3, and disk spring 7 is enclosed within on sleeve 4, and sleeve 4 is enclosed within on jackshaft 17.In the middle of jackshaft 17 and connecting bolt 6, have oil through, communicate with the oilhole 19 of lower body 20.Jackshaft 17 is arranged in middle body 14 and lower body 20 by bearing 11, can in middle body 14 and lower body 20, do gyration; Rotary piston 16 is connected in jackshaft 17 lower ends, and link block 18 is radially housed on rotary piston 16, and link block leads in the groove of rotary piston, in the time that rotary piston 16 rotates, isolates rotary piston both sides pressure oil at the effect lower seal pin 18 of centrifugal force; Middle body 14 is fixedly connected with lower body 20, sealing ring (sealing ring is made up of sealing ring A23, sealing ring B26, sealing ring C27) is housed on faying face, like this, form an oscillating oil cylinder by middle body 14, lower body 20, rotary piston 16, link block 18, sealing ring (sealing ring A23, sealing ring B26, sealing ring C27), rotary piston 16 can swing around the center line of jackshaft 17 under the driving of its both sides pressure oil;

When pressure oil from lower body 20 oilholes 19 in the time that jackshaft 17 and connecting bolt 6 enter the cylinder body 5 of straight line piston 3 tops, pressure oil promotes cylinder body 5 and moves upward, thereby driving upper body 10 to compress disk spring 7 moves upward, realize the motion of lifting of upper body 10, now transposition screw 9 inserts in the transposition hole 8 of straight line piston 3 belows, for gyration is prepared;

After upper body 10 is lifted and put in place, oscillating oil cylinder left chamber 25 oil-feeds, promote rotary piston 16 and swing an angle (six stations are 60 °) to the right, and rotary piston 16 drives straight line piston 3 to rotate an angle by jackshaft 17.At this moment, upper body 10 is in lifting status, and insert in the transposition hole 8 of straight line piston 3 belows transposition screw 9 one end, and the other end is fixed on upper body 10, and straight line piston 3 will drive upper body 10 to rotate an angle with respect to middle body 14.It is uniform on upper body 10 that multiple tool parts 1(six stations are housed is 6), in the time that upper body 10 rotates an angle (six stations are 60 °), complete upper body 10 transposition tool changing movements;

In the time that the pressure of pressure oil in lower body 20 oilholes 19 is removed, upper body 10 falls at the elastic force of disk spring 7 and under the effect of gravity, and the transposition hole 8 of straight line piston 3 belows separates with transposition screw 9.After upper body 10 falls and puts in place, oscillating oil cylinder right chamber 28 oil-feeds, promote rotary piston 16 and swing 60 ° (six stations) left and reset, for next transposition circulation is prepared.At this moment because the transposition hole 8 of straight line piston 3 belows separates with transposition screw 9, does not rotate with jackshaft 17 and rotary piston 16 upper body 10.

Transmission mechanism as shown in Figure 1, mainly by guide gear 12, guide finger 13, gear 15, power transmission shaft 21, belt wheel 22 and and multiple tool parts 1 form, power transmission shaft 21 is supported in lower body 20, guide gear 12 is fixing with gear 15 by guide finger 13, gear 15 is fixed on one end of power transmission shaft 21 by key, the other end of power transmission shaft 21 is fixedly connected with belt wheel 22; Multiple tool parts are uniformly distributed along the circumference and are contained on upper body, gear 15 and one of them tool parts 1(operating position) on gear be meshed; Power is inputted from belt wheel 22 by belt, and power is inputted from belt wheel 22, and to power transmission shaft 21, then to gear 15, gear 15 is meshed with the gear on tool parts 1, drives tool parts 1 to do gyration; The effect of guide gear 12 is that, in the time of unit head transposition, the gear on tool parts 1 can be meshed with the gear on power transmission shaft 21 smoothly.

Detent mechanism as shown in Figure 4, is the taper pin device that floats, and is mainly made up of taper pin 30, spring 29, screwed plug 24, taper pin 30 matches with the hole on middle body 14, spring 29 is between taper pin 30 and screwed plug 24, and original state spring 29 has pretightning force, and screwed plug 24 is fixed on middle body 14.When upper body 10 transpositions complete while falling, taper pin 30 inserts in the taper hole matching with it, and location is carried out at gyratory directions in upper body 10.

Claims (2)

1. the Multi-position power head that the taper pin that floats is located, form by lifting indexing mechanism, transmission mechanism and detent mechanism, it is characterized in that: described in lift indexing mechanism, mainly formed by upper body, middle body, lower body, jackshaft, bearing, rotary piston, link block, straight line piston, cylinder body, sleeve, disk spring, transposition screw, connecting bolt, trip bolt, sealing ring, by trip bolt, cylinder body is fixed on upper body, straight line piston is fixed on jackshaft by connecting bolt; Straight line piston below has transposition hole, and transposition screw is fixed on upper body, and in the time that lift upper body, transposition screw can insert in the transposition hole of straight line piston below; Disk spring is contained in straight line piston below, and disk spring is enclosed within on sleeve, and jacket casing is on jackshaft; In the middle of jackshaft and connecting bolt, have oil through, communicate with the oilhole of lower body; Jackshaft is arranged in middle body and lower body by bearing, can in middle body and lower body, do gyration; Rotary piston is connected in jackshaft lower end, and link block is radially housed on rotary piston, and link block leads in the groove of rotary piston, in the time that rotary piston rotates, at the effect lower seal pin isolation rotary piston both sides of centrifugal force pressure oil; Middle body is fixedly connected with lower body, and sealing ring is housed on faying face; Like this, form an oscillating oil cylinder by middle body, lower body, rotary piston, link block, sealing ring, rotary piston can swing around the center line of jackshaft under the driving of its both sides pressure oil;

Described detent mechanism, is the taper pin device that floats, and is mainly made up of taper pin, spring, screwed plug, and the hole on taper pin and middle body matches, and spring is between taper pin and screwed plug, and original state spring has pretightning force, and screwed plug is fixed on middle body;

Described transmission mechanism, mainly be made up of guide gear, guide finger, gear, power transmission shaft, belt wheel and multiple tool parts, power transmission shaft is supported in lower body, and guide gear is fixed by guide finger and gear, gear is fixed on one end of power transmission shaft by key, the other end of power transmission shaft is fixedly connected with belt wheel; Multiple tool parts are uniformly distributed along the circumference and are contained on upper body, and gear is meshed with the gear being wherein positioned on the tool parts of operating position.

2. the Multi-position power head that the taper pin that floats is according to claim 1 located, is characterized in that: the quantity of described detent mechanism is 2.