CN205977134U - Adopt rig head of mechanical clamping ware - Google Patents

Abstract

The utility model discloses an adopt rig head of mechanical clamping ware, include and install the rig head on the mast assembly through the mechanical clamping ware, the mechanical clamping ware including the inside slide that has logical groove, be equipped with a clamping block piece in the slide, be provided with the end cover at the front end of slide, be provided with the guide post on the end cover, offer the screw hole that pierces through guide post and end cover along the axial on the guide post, be equipped with one end and the tight lead screw of the movable clamp of being connected of clamping block piece in the screw hole, install a centre gripping rocking arm in the rear end of slide, the centre gripping rocking arm passes through the locating pin and installs on the slide, mechanical clamping ware when using, pass the side of slide with the overhead drilling rod of rig, make the drilling rod through between clamping block piece and the centre gripping rocking arm, adjust the position of clamping block piece through pressing from both sides tight lead screw, messenger's drilling rod by the centre gripping between clamping block piece and centre gripping rocking arm. The utility model discloses a bore head structure, it is better that fixed effect is compared to current homogeneous structure, and it is more stable to work.

Description

A kind of drill head of employing mechanical gripper

Technical field

This utility model is related to drilling equipment technical field and in particular to a kind of machinery that adopts of coal roadway drilling machine presss from both sides The drill head of holder, for the clamping of drilling rod.

Background technology

At present, colliery drill pipe clamp is generally hydraulic drive type, is primarily present following shortcoming:Complex structure, zero Part is more, and down-hole is difficult in maintenance.Once breaking down, maintenance is very inconvenient, affects work efficiency.

Content of the invention

For above-mentioned problems of the prior art, the purpose of this utility model is, provides one kind using machinery folder The drill head of holder, using simpler structure, convenient use and maintenance, is more suitable for the environment of underground coal mine.

In order to realize above-mentioned task, this utility model employs the following technical solutions：

A kind of drill head of employing mechanical gripper, including the rig being arranged on by mechanical gripper on mast assembly Head, described mechanical gripper includes the internal slide with groove, is equipped with a clamping slider, in slide before slide End is provided with end cap, end cap is provided with lead, offers the spiral shell penetrating lead and end cap on lead vertically Pit, is equipped with the clamping screw mandrel of one end and the movable connection of clamping slider in screwed hole；It is provided with one in the rear end of slide Individual clamping rocking arm, clamping rocking arm is installed on slide by alignment pin；When described mechanical gripper uses, by drill head Drilling rod passes through the side of slide, makes drilling rod between clamping slider and clamping rocking arm, adjusts clamping slider by clamping screw mandrel Position, make drilling rod be clamped in clamping slider and clamping rocking arm between.

Further, described mast assembly includes secondary slide track seat, and secondary slide track seat is equipped with can along secondary slide track seat axially The mast sliding, mast is equipped with and can turn round bracket in axial sliding along mast, described drill head is arranged on revolution bracket On；Sliding oil cylinder is provided with described secondary slide track seat, the output shaft of sliding oil cylinder is connected with mast；Open in the upper surface of mast It is provided with chute, described revolution bracket is assemblied on chute；Feed oil cylinder is installed in chute, on the output shaft of feed oil cylinder Gear is installed, revolution bracket base, chute are all equipped with the tooth bar of described gear cooperation.

Further, described slide includes top board and the base plate parallel with top board, passes through the between top board and base plate Side plate, the second side plate connect；Symmetrically offer pin-and-hole in the rear end of the first side plate, the second side plate, described clamping rocking arm Front end extend into inside slide, sequentially passed through using an alignment pin pin-and-hole on the first side plate, clamping rocking arm, on the second side plate Pin-and-hole with to clamping rocking arm be fixed.

Further, the bottom of described base plate offers kerve along the axial direction of described groove, and kerve runs through base plate Front end and rear end, are symmetrically arranged with installing plate on the bottom edge of kerve both sides, and installing plate is be arranged in parallel with base plate, two peaces Width between dress plate is more than the width of slide, and the fixing hole that run through installing plate is distributed with installing plate；Described slide exists During installation, it is stuck on the mast of rig by groove, then pass through the fixing hole on installing plate that slide is carried out using fixture Install and fix.

Further, the first described side plate offers the first breach, the first breach passes the rearward end of the first side plate； Second breach is offered on the second side plate, the second breach passes the rear end of the second side plate, and the width of the second breach is less than the The width of one breach.

Further, the first described side plate is provided with the first side opening, the first side opening is the circular hole of non-closed, and first Side opening and the first described breach pass through even；Second side opening is offered on the second side plate, the second side opening is circular hole, and the second side Hole, the first side opening are coaxially disposed.

Further, inside described groove top board, base plate and the first side plate, the second side plate junction all along groove Axially arranged have square column, offer bolt hole in square column, described end cap is assemblied in slide by fixing bolt and bolt hole Front end；Define a pair between two square columns between two square columns at described top board, at base plate be used for assembling described The chute of clamping slider.

Further, described clamping screw mandrel is with externally threaded column construction, is connected with the front end of clamping screw mandrel One square head, the rear end of clamping screw mandrel is connected with a push-plate by connecting rod, and the diameter of push-plate is less than the diameter of connecting rod.

Further, described clamping slider is cuboid structure, and the top of clamping slider, bottom symmetrical are provided with cunning Platform, the edge of slide unit is processed as hypotenuse；The side that the two of which of note clamping slider is adjacent is respectively first side, the second side Face, offers the draw-in groove leading within clamping slider on the first side, second side offers and passes through slipping into of company with draw-in groove Groove, the one end slipping into groove passes second side, and the other end slipping into groove extends to the middle part of second side, and slips into this end of groove For cabochon structure；The described width slipping into groove is less than the width of draw-in groove.

Further, it is symmetrically arranged with fixture on described clamping slider and on clamping rocking arm, fixture includes four folders Hold block, the longitudinal cross-section of grip block is ladder structure of right angle；Grip block is on clamping slider, clamping rocking arm all in splayed structure A pair of setting, is provided with skid resistant course on grip block.

Further, described clamping rocking arm includes the grip block stretching into sliding base rear end, and the upper end of grip block, lower end connect There is the first rocker being parallel to each other, be respectively connected with second rocker in the rear end of two the first rockers, between the second rocker Connected by holding rod；Wherein, the length of the first rocker is more than length, the distance between two first rockers and the cunning of the second rocker The top board of seat, the distance between base plate are identical, and the distance between two the first rockers more than between two the second rockers away from From.

This utility model compared with prior art has following technical characterstic：

1. clamper of the present utility model adopts mechanical structure, and more traditional fluid pressure type structure is compared, and its structure is more Simply, thus be easy to keep in repair, for the maintenance worker of down-hole, reduce maintenance complexity, improve work efficiency；

2. mechanical gripper of the present utility model can adopt manually regulation clamping dynamics, for the severe ring in down-hole For border and operating mode, the motility that this mode operates is higher, and control mode is simpler；

3. this apparatus structure is simple, sturdy and durable, and convenient making produces, and fault rate is low, and reliability is higher, whole drill mechanism Structure has more preferable stability, and practical effect is good.

Brief description

Fig. 1 is overall structure diagram of the present utility model；

Fig. 2 is the overlooking the structure diagram of Fig. 1；

Fig. 3 is longitudinal cross section structure diagram of the present utility model；

Fig. 4 is front end face structural representation of the present utility model；

Fig. 5 is overall structure diagram of the present utility model；

Fig. 6 is oblique top view of the present utility model (left tiltedly top view)；

Fig. 7 is the structural representation of rear end face of the present utility model；

Fig. 8 is oblique top view of the present utility model (right tiltedly top view)；

Fig. 9 is the side view of clamping slider；

Figure 10 is the oblique top view of clamping slider；

In figure label represents：A mechanical gripper, 1 clamping screw mandrel, 2 end caps, 3 top boards, 4 clamping sliders, 5 alignment pins, 6 grip blocks, 7 base plates, 8 clamping rocking arms, 9 fixing bolts, 10 square heads, 11 kerves, 12 Installing plate, 13 leads, 14 first side openings, 15 first side plates, 16 fixing holes, 17 holding rods, 18 first rockers, 19 second rockers, 20 grooves, 21 bolts hole, 22 pin-and-holes, 23 square columns, 24 chutes, 25 first breach, 26 Second breach, 27 second side openings, 28 slide units, 29 hypotenuses, 30 draw-in grooves, 31 slip into groove, 32 second side plates, and 33 Connecting rod, 34 push-plates, 35 grip blocks, 36 mast assemblies, 37 drill head, 38 centralizers, 39 drilling rods, 40 is secondary sliding Rail chair, 41 revolution brackets, 42 sliding oil cylinders, 43 feed oil cylinders, 44 tooth bars.

Specific embodiment

The clamper that drilling rod on traditional rig uses is hydraulic-driven structure, and complicated, repair and maintenance is difficult, in reality Many problems are brought during use.This utility model then actually used demand according to rig and environment, provides a kind of brand-new Employing mechanical gripper drill head.

As shown in Figures 1 to 10, a kind of drill head of employing mechanical gripper, is arranged on including by mechanical gripper A Drill head 37 on mast assembly 36, described mechanical gripper A includes the internal slide with groove 20, is equipped with slide One clamping slider 4, is provided with end cap 2 in the front end of slide, end cap 2 is provided with lead 13, along axle on lead 13 To offering the screwed hole penetrating lead 13 and end cap 2, screwed hole is equipped with one end and the movable company of clamping slider 4 The clamping screw mandrel 1 connecing；In the rear end of slide, one clamping rocking arm 8 is installed, clamping rocking arm 8 is installed on slide by alignment pin 5 On；When described mechanical gripper A uses, the drilling rod 39 on drill head 37 is passed through the side of slide, make drilling rod through clamping Between slide block 4 and clamping rocking arm 8, adjust the position of clamping slider 4 by clamping screw mandrel 1, make drilling rod be clamped in clamping slider 4 And clamping rocking arm 8 between.

The structure of mast assembly 36 is as depicted in figs. 1 and 2.Mast assembly 36 includes secondary slide track seat 40, when actually used, Secondary slide track seat 40 is arranged on rig, adjusts the integral position of secondary slide track seat 40 by rig, recycles on secondary slide track seat 40 Mechanism is adjusting the exact position of drilling rod 39.Being equipped with secondary slide track seat 40 can be along secondary slide track seat 40 mast in axial sliding, mast It is equipped with bar and can turn round bracket 41 in axial sliding along mast, described drill head 37 is arranged on revolution bracket 41.Secondary sliding Rail chair 40 is connected installation with revolution pedestal, and it provides the track of a slip simultaneously for mast, and mast can be in secondary slide track seat 40 enterprising line slips.Specifically, secondary slide track seat 40 is provided with sliding oil cylinder 42, the output shaft of sliding oil cylinder 42 is with mast even Connect；Offer chute in the upper surface of mast, described revolution bracket 41 is assemblied on chute；Feed oil is installed in chute Cylinder 43, the output shaft of feed oil cylinder 43 is provided with gear, is all equipped with described gear in revolution bracket 41 bottom, chute The tooth bar 44 of cooperation.During adjusting, drive sliding oil cylinder 42, mast can be made to be slided with respect to secondary slide track seat 40 Dynamic, and drive feed oil cylinder 43, then under the drive of rack-and-pinion 44, make revolution bracket 41 that drill head 37 part can be driven to carry out Mobile.Such fit system, is a kind of duplication acceleration mechanism, fine-tuning of achievable drill head 37 position, also can make mast band The interior movement on a large scale in the axial direction of dynamic drill head 37, meets the requirement of drilling under different condition.It is additionally provided with mast assembly 36 Centralizer 38, for limiting drilling rod 39 position operationally.

In this utility model, the primary structure of mechanical gripper A includes slide, clamping screw mandrel 1, clamping slider 4 and folder Hold rocking arm 8.Wherein, slide plays hard-wired effect, and slide is used for being fixed on the mast of rig when in use.Sliding There are a clamping slider that can slide 4, clamping slider 4 and described clamping rocking arm 8 to coordinate in seat, jointly be used for drilling rod is entered Row clamping.The position adjustment of clamping slider 4 adopts Mechanical Driven mode, specifically, being provided with slip lid and guiding in slide front end Post 13, has screwed hole inside lead 13, carries externally threaded clamping screw mandrel 1 using one and passes through screwed hole, makes clamping screw mandrel 1 Rear end and the movable connection of clamping slider 4.When in use, rotate clamping screw mandrel 1 using instrument, make because screw thread coordinates With grip slide will be made movable in slide；And the position clamping rocking arm 8 is relatively-stationary, thus can be by adjusting The position of whole slide block is played effective clamping action to through the drilling rod clamping slider 4 and clamping rocking arm 8, and adjusts It has suffered journey very convenient.Distance minimum 0 between clamping slider 4 and clamping rocking arm 8, ultimate range is 34.5, is suitable for drilling rod straight Footpath isThere is good versatility.

As shown in Fig. 3, Figure 10, in order to ensure the clamping effect to drilling rod, on clamping slider 4 and right on clamping rocking arm 8 Claim to be provided with fixture, fixture includes four grip blocks 6, and the longitudinal cross-section of grip block 6 is ladder structure of right angle；Grip block 6 is in folder Hold slide block 4, clamp a pair of setting all in splayed structure on rocking arm 8, trapezoidal bottom surface side that will be described is fixed on clamping and slides On block 4 and clamping rocking arm 8, and interval setting between two grip blocks 6.Grip block 6 is provided with skid resistant course.Clamping slider 4 and clamping rocking arm 8 on fixture when close to each other, define the clamping hole of a similar round between four grip blocks 6, can fit Answer the external shape of drilling rod, thus effectively being clamped to drilling rod.This clamp structure, has bigger contact surface with drilling rod, And its outstanding feature is to adapt to the drilling rod of various outer diameter, has good versatility.And also set up on grip block 6 There is skid resistant course, skid resistant course can be anti-slip veins or other anti-skid structures.

As shown in Fig. 5 to Fig. 8, this utility model gives a kind of specific slide carriage structure, slide include top board 3 and with The parallel base plate of top board 37, passes through the first side plate 15 between top board 3 and base plate 7, the second side plate 32 is connected, and makes slide generally two Hold structure penetrating, that longitudinal cross-section is rectangular, and penetrating part is described groove 20；In the first side plate 15, second The rear end of side plate 32 symmetrically offers pin-and-hole 22, and the front end of described clamping rocking arm 8 extend into inside slide, is positioned using one Pin 5 sequentially passes through pin-and-hole 22 on the first side plate 15, clamping rocking arm 8, the pin-and-hole 22 on the second side plate 32 to enter to clamping rocking arm 8 Row is fixed.This slide carriage structure, is easy to processing, installs, and structure is relatively easy.

As shown in figure 3, clamping rocking arm 8 includes the grip block 35 stretching into sliding base rear end, the upper end of grip block 35, lower end connect There is the first rocker 18 being parallel to each other, be respectively connected with second rocker 19 in the rear end of two the first rockers 18, second shakes Connected by holding rod 17 between plate 19；Wherein, the length of the first rocker 18 is more than the length of the second rocker 19, two the first rockers The distance between 18 is identical with the distance between the top board 3 of slide, base plate 7, and that is, two rockers can just be inserted on groove 20 Between lower end, do not stay gap, this is to make carrying out locking to drilling rod, clamping rocking arm 8 does not teetertotter it is therefore desirable to two The distance between first rocker 18 can just snap onto between the top board 3 of slide, base plate 7；And between two the first rockers 18 More than the distance between two second rockers 19, this is that hand grips and double swerve for convenience to distance；This device is using After finishing, first lay down drilling rod, then hold clamping rocking arm 8 double swerve, can assist to unclamp this clamper.

As shown in Figure 6 to 8, the bottom of base plate 7 offers kerve 11 along the axial direction (length direction) of described groove 20, Kerve 11 runs through front end and the rear end of base plate 7, is symmetrically arranged with installing plate 12 on base plate 7 edge of kerve 11 both sides, installs Plate 12 is be arranged in parallel with base plate 7, and the width between two installing plates 12 is more than the width of slide, and is distributed with installing plate 12 and passes through Wear the fixing hole 16 of installing plate 12；The width of slide refers to the distance between the first side plate 15 of slide, second side plate 32；Need The distance between two installing plates 12 are some larger, and one is easy for arranging fixing hole 16, and two so that kerve 11 is had sufficiently large Space can be easy to rig cooperation installation, described slide when mounted, be stuck on the mast of rig by groove 20, Ran Houli Pass through the fixing hole 16 on installing plate 12 slide to be carried out fixation is installed with fixture.Fixture can adopt bolt etc..

As shown in Fig. 5, Fig. 6 and Fig. 8, the first side plate 15 offers the first breach 25, the first breach 25 passes the first side The rearward end of plate 15；Second breach 26 is offered on the second side plate 32, the second breach 26 passes the rear end of the second side plate 32, and The width of the second breach 26 is less than the width of the first breach 25.First breach 25, the second breach 26 are rectangular indentation, institute here The width said refers to parallel to the width on base plate 7 direction.First breach 25, the second breach 26 all pass the rear end of side plate, this Sample drilling rod can be externally entering the first breach 25, in the second breach 26.First side opening 14 is provided with the first side plate 15, first Side opening 14 is the circular hole of non-closed, and the first side opening 14 and described the first breach 25 company of passing through；Second side plate 32 offers Second side opening 27, the second side opening 27 is circular hole, and the second side opening 27, the first side opening 14 are coaxially disposed.First breach 25 and second Breach 26 mainly provides enough activity spaces for clamping rocking arm 8 when installing and the later stage removes drilling rod, and the first breach 25 An extra effect is that, due to itself and the first side opening 14 company of passing through taking closure, this side opening facilitates snapping in of drilling rod. When using, first drilling rod is passed through the second side opening 27, then drilling rod can enter in the first side opening 14 by the first breach 25, side Installation process.Drilling rod penetrates the side of slide by the first side opening 14, the second side opening 27, and two side openings rise to drilling rod jointly To relatively restricted and fixing effect.

As shown in figure 3, clamping screw mandrel 1 is with externally threaded column construction, it is connected with one in the front end of clamping screw mandrel 1 Square head 10, square head 10 facilitates and uses a tool to rotation clamping screw mandrel 1, for example with spanner；The rear end of clamping screw mandrel 1 leads to Cross connecting rod 33 and be connected with a push-plate 34, the diameter of push-plate 34 is less than the diameter of connecting rod 33；Push-plate 34 is used to and clamping slider 4 Movably arranged, when clamping screw mandrel 1 rotation, axially simultaneously moves forwards, backwards, and thrust is then passed to clamping by push-plate 34 Slide block 4, pushes or pull on clamping slider 4 and moves.

Further, on the equal edge in junction of top board 3, base plate 7 and the first side plate 15, the second side plate 32 inside groove 20 The axially arranged of groove 20 has square column 23, and that is, cross section is square cylinder；Bolt hole 21 is offered, described end in square column 23 Lid 2 passes through fixing bolt 9 and bolt hole 21 is assemblied in the front end of slide, with easy disassembly process.At described top board 3 two A pair chute 24 for assembling described clamping slider 4 is defined, such as between two square columns 23 between square column 23, at base plate 7 Shown in Fig. 5, Fig. 6, clamping slider 4 is contained in groove 20, and can limit the motion of clamping slider 4 by chute 24.

As shown in Figure 9, Figure 10, clamping slider 4 is cuboid structure, is provided with the top of clamping slider 4, bottom symmetrical Slide unit 28, the edge of slide unit 28 is processed as hypotenuse 29；The side that the two of which of note clamping slider 4 is adjacent is respectively the first side Face, second side, offer the draw-in groove 30 leading within clamping slider 4 on the first side, second side offer and card Groove 30 company of passing through slips into groove 31, and the one end slipping into groove 31 passes second side, and the other end slipping into groove 31 extends to second side Middle part, and slip into groove 31 this end be cabochon structure；The described width slipping into groove 31 is less than the width of draw-in groove 30.In reality When border uses, first the push-plate 34 of clamping screw mandrel 1 is stuck in the port of draw-in groove 30, so that connecting rod 33 is entered and slip in groove 31, The overall promotion in the middle part of clamping slider 4 of screw mandrel 1 will be clamped again, make connecting rod 33 reach the end slipping into groove 31, then will press from both sides again Hold in the groove 20 that slide block 4 snaps onto slide, refill upper end cover 2.This clamping slider 4 structure, can conveniently coordinate and clamping silk Bar 1 cooperation is installed, dismounting, and is movably arranged mode, and convenient clamping screw mandrel 1 drives clamping slider 4 to move forward and backward.

Claims (10)

1. a kind of drill head using mechanical gripper is it is characterised in that include being arranged on mast by mechanical gripper (A) total Become the drill head (37) on (36), described mechanical gripper (A) includes the internal slide with groove (20), assembles in slide There is a clamping slider (4), the front end of slide is provided with end cap (2), end cap (2) is provided with lead (13), in guiding The screwed hole penetrating lead (13) and end cap (2) is offered vertically on post (13), be equipped with screwed hole one end with The clamping screw mandrel (1) of the movable connection of clamping slider (4)；In the rear end of slide, one clamping rocking arm (8) is installed, clamps rocking arm (8) it is installed on slide by alignment pin (5)；When described mechanical gripper (A) uses, by the drilling rod on drill head (37) (39) pass through the side of slide, make drilling rod between clamping slider (4) and clamping rocking arm (8), adjusted by clamping screw mandrel (1) The position of clamping slider (4), makes drilling rod be clamped between clamping slider (4) and clamping rocking arm (8).

2. the drill head (37) of employing mechanical gripper as claimed in claim 1 is it is characterised in that described mast assembly (36) include secondary slide track seat (40), secondary slide track seat (40) is equipped with can be along secondary slide track seat (40) mast in axial sliding, mast On be equipped with and can turn round bracket (41) in axial sliding along mast, described drill head (37) is arranged in revolution bracket (41)； Sliding oil cylinder (42) is provided with described secondary slide track seat (40), the output shaft of sliding oil cylinder (42) is connected with mast；In mast Upper surface offer chute, described revolution bracket (41) is assemblied on chute；Feed oil cylinder (43) is installed in chute, On the output shaft of feed oil cylinder (43), gear is installed, in revolution bracket (41) bottom, chute, is all equipped with described gear The tooth bar (44) of cooperation.

3. the drill head using mechanical gripper as claimed in claim 1 is it is characterised in that described slide includes top board (3) and the base plate (7) parallel with top board (3), the first side plate (15), the second side plate are passed through between top board (3) and base plate (7) (32) connect；Symmetrically offer pin-and-hole (22) in the rear end of the first side plate (15), the second side plate (32), described clamping rocking arm (8) front end extend into inside slide, sequentially passes through the pin-and-hole (22) on the first side plate (15) using an alignment pin (5), presss from both sides Hold rocking arm (8), the pin-and-hole (22) on the second side plate (32) to be fixed to clamping rocking arm (8).

4. the drill head of employing mechanical gripper as claimed in claim 3 is it is characterised in that the bottom of described base plate (7) Axial direction along described groove (20) offers kerve (11), and kerve (11) runs through front end and the rear end of base plate (7), in kerve (11) it is symmetrically arranged with installing plate (12) on base plate (7) edge of both sides, installing plate (12) is be arranged in parallel with base plate (7), two Width between installing plate (12) is more than the width of slide, and is distributed with, on installing plate (12), the fixing hole running through installing plate (12) (16)；Described slide when mounted, is stuck on the mast of rig by groove (20), then utilizes fixture to pass through installing plate (12) fixing hole (16) on carries out to slide installing to be fixed.

5. the drill head of employing mechanical gripper as claimed in claim 3 is it is characterised in that on described the first side plate (15) Offer the first breach (25), the first breach (25) passes the rearward end of the first side plate (15)；Open up on second side plate (32) There is the second breach (26), the second breach (26) passes the rear end of the second side plate (32), and the width of the second breach (26) is less than the The width of one breach (25).

6. the drill head of employing mechanical gripper as claimed in claim 5 is it is characterised in that on described the first side plate (15) It is provided with the first side opening (14), the first side opening (14) is the circular hole of non-closed, and the first side opening (14) and the first described breach (25) company of passing through；Second side opening (27) is offered on the second side plate (32), the second side opening (27) is circular hole, and the second side opening (27), the first side opening (14) is coaxially disposed.

7. the drill head of employing mechanical gripper as claimed in claim 3 is it is characterised in that described groove (20) inside exists Top board (3), base plate (7) and the first side plate (15), the junction of the second side plate (32) are all along the axially arranged side of having of groove (20) Post (23), offers bolt hole (21) in square column (23), described end cap (2) passes through fixing bolt (9) and bolt hole (21) dress Fit over the front end of slide；Between two square columns (23) at described top board (3) place, between two square columns (23) at base plate (7) place Define the chute (24) being used for assembling described clamping slider (4) a pair.

8. the drill head of employing mechanical gripper as claimed in claim 1 is it is characterised in that described clamping screw mandrel (1) is With externally threaded column construction, it is connected with a square head (10) in the front end of clamping screw mandrel (1), after clamping screw mandrel (1) End is connected with a push-plate (34) by connecting rod (33), and the diameter of push-plate (34) is less than the diameter of connecting rod (33).

9. the drill head of employing mechanical gripper as claimed in claim 1 is it is characterised in that described clamping slider (4) is Cuboid structure, is provided with slide unit (28) in the top of clamping slider (4), bottom symmetrical, the edge of slide unit (28) is processed as Hypotenuse (29)；The side that the two of which of note clamping slider (4) is adjacent is respectively first side, second side, in first side On offer and lead to the internal draw-in groove (30) of clamping slider (4), second side offers with draw-in groove (30) company of passing through slip into groove (31) one end, slipping into groove (31) passes second side, and the other end slipping into groove (31) extends to the middle part of second side, and sliding This end entering groove (31) is cabochon structure；The described width slipping into groove (31) is less than the width of draw-in groove (30).

10. the drill head of employing mechanical gripper as claimed in claim 1 is it is characterised in that on described clamping slider (4) And it is symmetrically arranged with fixture in clamping rocking arm (8), fixture includes four grip blocks (6), and the longitudinal cross-section of grip block (6) is straight Angle trapezium structure；Grip block (6) is arranged a pair all in splayed structure in clamping slider (4), clamping rocking arm (8), in clamping Block is provided with skid resistant course on (6).