CN111558736A

CN111558736A - Curved surface perforating device based on agricultural machining is used to be convenient for location

Info

Publication number: CN111558736A
Application number: CN202010368633.3A
Authority: CN
Inventors: 邢彩凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-01
Filing date: 2020-05-01
Publication date: 2020-08-21

Abstract

The invention discloses a curved surface punching device convenient to position based on agricultural machining, which comprises a machining table, a drilling machine, a first pneumatic telescopic rod, a curved surface plate, a first sliding table, a motor, a second sliding table and a second pneumatic telescopic rod, wherein a fixing mechanism is sleeved on the outer surface of the drilling machine, the output end of the first pneumatic telescopic rod is connected and fixed with the top end of the drilling machine through a screw, the rear end of the first pneumatic telescopic rod is connected with a fixing plate through a screw, a second connecting shaft is fixed on the outer surface of the rear end of the fixing plate through a screw, a dial is sleeved on the outer surface of the second connecting shaft, the outer surface of the rear end of the fixing plate is attached to the outer surface of the front end of the dial, a second bevel gear is sleeved at the rear end of the second connecting shaft, and a first bevel gear is arranged at. The invention is convenient for quickly positioning the opening angle, improves the perpendicularity of the opening and improves the opening yield.

Description

Curved surface perforating device based on agricultural machining is used to be convenient for location

Technical Field

The invention relates to the technical field of agricultural machining, in particular to a curved surface punching device convenient to position and based on agricultural machining.

Background

Agricultural machinery refers to various machines used in the production process of crop planting and animal husbandry, as well as in the primary processing and treatment process of agricultural and livestock products. Agricultural machinery includes agricultural power machinery, farmland construction machinery, soil farming machinery, planting and fertilizing machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery, agricultural transportation machinery and the like.

Agricultural machinery's characteristics are, the plate that has a lot of curved surfaces in agricultural machinery, need pass through bolted connection between the plate, consequently need set up the fixed orifices on the curved surface plate, and perforating device is the device for the trompil of curved surface plate.

To this end, chinese patent application No.: 201811307924.0, discloses a bent plate perforating device, includes: rectangular base, hydraulic lifting rod, cylindrical supporting rod and cylindrical sleeve

The device comprises a pipe, a T-shaped bracket, two fixed rollers, a rectangular arch bar, two auxiliary rollers, two Y-shaped supporting rods, a first motor, a cam sleeve, a needle rod, a supporting rod, a second motor, a rotating rod, a compression spring, a pressure sensor, a second motor control module and a drill bit; the invention can stably fix the bent plate, can quickly complete the replacement operation of the punching position, realizes continuous punching, improves the efficiency of plate drilling, ensures that the pressure of the drill bit on the plate in the drilling process is from small to large, cannot cause the plate to break because of sudden strong pressure of the drill bit, improves the drilling yield of the plate, and saves energy. The opening of the holes in the curved plate can be realized.

However, when the existing punching device is used for punching a curved plate, because the hole punching surface on the curved plate is not vertical to the drill bit, the hole punching perpendicularity can not be ensured by direct punching, the hole punching of the curved plate is unqualified, and the hole punching angle can not be conveniently positioned by the existing punching device, so that the curved surface punching device which is used for conveniently positioning based on agricultural machining needs to be designed urgently to solve the problems.

Disclosure of Invention

The invention aims to provide a curved surface punching device convenient to position based on agricultural machining, and aims to solve the problems that the opening angle cannot be conveniently positioned and the perpendicularity of an opening cannot be ensured in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a curved surface perforating device convenient to locate based on agricultural machining comprises a machining table, a drilling machine, a first pneumatic telescopic rod, a curved plate, a first sliding table, a motor, a second sliding table and a second pneumatic telescopic rod, wherein the outer surface of the drilling machine is sleeved with a fixing mechanism, the output end of the first pneumatic telescopic rod is fixedly connected with the top end of the drilling machine through screws, the rear end of the first pneumatic telescopic rod is connected with a fixing plate through screws, a second connecting shaft is fixed on the outer surface of the rear end of the fixing plate through screws, a dial is sleeved on the outer surface of the second connecting shaft, the outer surface of the rear end of the fixing plate is attached to the outer surface of the front end of the dial, a second bevel gear is sleeved on the rear end of the second connecting shaft, a first bevel gear is arranged at the rear end of the second bevel gear, and a first connecting shaft is inserted in the bottom end of, the hand wheel has been cup jointed to the bottom of first connecting axle, the rear end surface of calibrated scale has fixed box through the screw fixation, the rear end surface of fixed box has the silk braid through the screw fixation, the rear end of fixed box is provided with first slip table, the inboard of first slip table is provided with the lead screw, and the lead screw runs through the inboard of silk braid, the surface of first slip table has the motor through the screw fixation, the lower surface of first slip table is provided with the second slip table, the bottom of second slip table has first support frame through the screw fixation, the upper surface of processing platform has the pneumatic telescopic link of second through the screw fixation, the output of the pneumatic telescopic link of second has the clamp splice through the screw fixation, the upper surface of clamp splice is provided with curved plate spare.

Preferably, the fixing mechanism comprises a fixing sleeve, a groove and a ball, the rear end of the fixing sleeve is fixedly connected with the outer surface of the front end of the fixing plate through a screw, and the fixing sleeve is fixed. The front end of the drilling machine is of an arc-shaped structure, and the drilling machine is arranged on the inner side of the fixed sleeve.

Preferably, a groove is formed in the inner wall of the fixing sleeve, a ball is arranged on the inner side of the groove, the inner wall of the groove is smooth, the ball and the groove form a rotating structure, the ball is abutted against the outer surface of the drilling machine, and the drilling machine and the fixing sleeve form a lifting structure.

Preferably, the lower surface of fixed box pierces through and has seted up logical groove, the inboard that leads to the groove runs through and is provided with the spacer pin, and the surface of spacer pin is connected through pivot and the inner wall rotation that leads to the groove, the lower skin weld of fixed box has the connecting pile, the bottom of connecting the pile runs through and is provided with the push rod, the surface of calibrated scale is run through to the one end of push rod, and the other end of push rod is articulated with the bottom of spacer pin, the surface cover of push rod is equipped with the spring, elastic construction is constituteed with the spring to the push rod.

Preferably, limiting gear has been cup jointed to first connecting axle surface, limiting gear's surface and the top block of spacer pin, the surface of fixed box is run through to the bottom of first connecting axle, and just first connecting axle passes through the bearing and is connected with fixed box rotation, first conical gear and second conical gear meshing, the second connecting axle passes through the bearing and is connected with the calibrated scale rotation.

Preferably, the front end of first slip table is provided with the guide arm, the spud pile has all been welded to the both sides of guide arm, and the rear end of spud pile passes through the screw and is fixed with the front end surface connection of first slip table, the surface of fixed box has the sleeve through the screw fixation, the guide arm runs through telescopic inboard, sliding construction is constituteed with the guide arm to the sleeve.

Preferably, the one end of lead screw is passed through the bearing and is connected with the inner wall rotation of first slip table, the other end of lead screw passes through the shaft coupling and is connected fixedly with the output of motor, sliding structure is constituteed with the lead screw to the silk cover.

Preferably, the inner structure of first support frame is the same with the inner structure of first slip table, sliding structure is constituteed with the second slip table to first slip table, the upper surface connection that screw and processing platform were passed through to the bottom of first support frame is fixed, the lower surface of first slip table has the slider through the screw fixation, the surface cover of slider is equipped with the sliding sleeve, the surface of slider is coincide with the inner wall of sliding sleeve, sliding structure is constituteed with the sliding sleeve to the slider, the lower surface of sliding sleeve has the second support frame through the screw fixation, and the upper surface connection that screw and processing platform were passed through to the bottom of second support frame is fixed.

Preferably, the last surface welding of clamp splice has the support stake, the inboard of supporting the stake is provided with the depression bar, the one end of depression bar is run through and is provided with the third connecting axle, and the other end of depression bar is connected with the compression roller through the pivot, the revolution mechanic is constituteed with the depression bar to the compression roller, the lower surface of compression roller is contradicted with curved plate's surface.

Preferably, the outer surface cover of third connecting axle is equipped with the torsional spring, the one end and the third connecting axle of torsional spring are connected fixedly, the other end and the depression bar of torsional spring are connected fixedly, the elastic construction is constituteed with the torsional spring to the depression bar, the rotational structure is constituteed with the third connecting axle to the depression bar.

Compared with the prior art, the invention has the beneficial effects that: this curved surface perforating device based on agricultural machining is used for being convenient for location is convenient for fix a position the trompil angle fast, improves the straightness that hangs down of trompil, improves the trompil yield.

The drilling machine is assembled on the fixing plate, the dial is rotatably connected with the rear end of the fixing plate through the second connecting shaft, the limiting pin is pushed by pressing the push rod to be away from the limiting gear, the limiting of the limiting gear can be relieved, the hand wheel can rotate, the first connecting shaft is driven to rotate by rotating the hand wheel, the first connecting shaft can drive the second bevel gear to rotate through the first bevel gear, the second bevel gear drives the fixing plate to rotate through the second connecting shaft, the fixing plate can rotate on the dial, the fixing plate drives the drilling machine to adjust the angle, the hole opening angle can be positioned, the effect of conveniently and quickly positioning the hole opening angle is achieved, the hole opening angle is adjusted, the perpendicularity of the holes on the curved surface can be ensured, so that the perpendicularity of the holes is improved, and the hole forming yield is improved.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional side view of the drill rig of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic top cross-sectional view of the fastening mechanism of FIG. 1 according to the present invention;

FIG. 5 is a schematic cross-sectional view of the compression link of FIG. 1 according to the present invention;

FIG. 6 is a schematic sectional view of the sliding sleeve shown in FIG. 1 according to the present invention.

In the figure: 1. a processing table; 2. a drilling machine; 3. a first pneumatic telescopic rod; 4. a fixing plate; 5. a fixing mechanism; 51. fixing a sleeve; 52. a groove; 53. a ball bearing; 6. a dial scale; 7. a fixing box; 8. sleeving the silk; 9. a hand wheel; 10. a first connecting shaft; 11. a first bevel gear; 12. a second connecting shaft; 13. a second bevel gear; 14. a curved plate member; 15. a limit gear; 16. a through groove; 17. a spacing pin; 18. a push rod; 19. connecting piles; 20. a spring; 21. a first sliding table; 22. a screw rod; 23. a motor; 24. a second sliding table; 25. a first support frame; 26. a second pneumatic telescopic rod; 27. a clamping block; 28. a pressure lever; 29. a second support frame; 30. a sliding sleeve; 31. a compression roller; 32. supporting piles; 33. a third connecting shaft; 34. a torsion spring; 35. a slider; 36. fixing the pile; 37. a guide bar; 38. a sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an embodiment of the present invention is shown: the utility model provides a curved surface perforating device based on agricultural machining is with being convenient for location, includes processing platform 1, drilling machine 2, first pneumatic telescopic link 3, curved plate 14, first slip table 21, motor 23, second slip table 24 and second pneumatic telescopic link 26, the surface cover of drilling machine 2 is equipped with fixed establishment 5, the output of first pneumatic telescopic link 3 passes through the screw and is connected fixedly with the top of drilling machine 2, and there is fixed plate 4 at the rear end of first pneumatic telescopic link 3 through screwed connection.

Preferably, the fixing mechanism 5 comprises a fixing sleeve 51, a groove 52 and a ball 53, wherein the rear end of the fixing sleeve 51 is fixedly connected with the outer surface of the front end of the fixing plate 4 through a screw, and the fixing sleeve 51. The front end of be the arc structure, drilling machine 2 sets up in the inboard of fixed cover 51, seted up recess 52 on the inner wall of fixed cover 51, the inboard of recess 52 is provided with ball 53, the inner wall of recess 52 is smooth, ball 53 constitutes revolution mechanic with recess 52, ball 53 contradicts with the surface of drilling machine 2, drilling machine 2 constitutes elevation structure with fixed cover 51, as shown in fig. 1 and 4, be equipped with fixed cover 51 through the surface cover at drilling machine 2, when making first pneumatic telescopic link 3 drive drilling machine 2 go up and down, drilling machine 2 can go up and down in fixed cover 51, improve the lift stability of drilling machine 2, through movable mounting have ball 53 between drilling machine 2 and fixed cover 51, can reduce the frictional force between drilling machine 2 and fixed cover 51, it is more smooth when making drilling machine 2 go up and down.

The rear end surface of the fixed plate 4 is fixed with a second connecting shaft 12 through screws, the outer surface sleeve of the second connecting shaft 12 is provided with a dial 6, the rear end surface of the fixed plate 4 is attached to the front end surface of the dial 6, the rear end of the second connecting shaft 12 is sleeved with a second bevel gear 13, the rear end of the second bevel gear 13 is provided with a first bevel gear 11, the bottom end of the first bevel gear 11 is inserted with a first connecting shaft 10, and the bottom end of the first connecting shaft 10 is sleeved with a hand wheel 9.

Preferably, the lower surface of the fixing box 7 is penetrated with a through groove 16, the inner side of the through groove 16 is penetrated with a limit pin 17, the outer surface of the limit pin 17 is rotatably connected with the inner wall of the through groove 16 through a rotating shaft, the lower surface of the fixing box 7 is welded with a connecting pile 19, the bottom end of the connecting pile 19 is penetrated with a push rod 18, one end of the push rod 18 penetrates through the outer surface of the dial 6, the other end of the push rod 18 is hinged with the bottom end of the limit pin 17, the outer surface of the push rod 18 is sleeved with a spring 20, the push rod 18 and the spring 20 form an elastic structure, the spring 20 plays a role of providing elasticity for the push rod 18, so that the push rod 18 can always keep a state as shown in fig. 3 when no external force is applied, the outer surface of the first connecting shaft 10 is sleeved with the limit gear 15, the outer surface of the limit gear 15 is, and first connecting axle 10 passes through the bearing and is connected with fixed box 7 rotation, and first conical gear 11 meshes with second conical gear 13, and second connecting axle 12 passes through the bearing and is connected with calibrated scale 6 rotation, through spacer pin 17 and stop gear 15 block, can carry out spacingly to stop gear 15, makes first connecting axle 10 unable rotation, avoids first connecting axle 10 to rotate at will, improves the angle regulation stability of fixed plate 4.

The rear end surface of calibrated scale 6 is fixed with fixed box 7 through the screw, the rear end surface of fixed box 7 is fixed with the silk braid 8 through the screw, the rear end of fixed box 7 is provided with first slip table 21, the inboard of first slip table 21 is provided with lead screw 22, and lead screw 22 runs through the inboard of silk braid 8, the surface of first slip table 21 is fixed with motor 23 through the screw, the inner wall rotation of bearing and first slip table 21 is passed through to the one end of lead screw 22 is connected, the other end of lead screw 22 is connected fixedly through the output of shaft coupling and motor 23, silk braid 8 and lead screw 22 constitute sliding construction, drive lead screw 22 through motor 23 and rotate, can make the internal thread in the silk braid 8 be stirred in the surperficial silk braid of lead screw 22, make silk braid 8 can slide on lead screw 22, make silk braid 8 can drive fixed box 7 horizontal slip.

Preferably, the front end of the first sliding table 21 is provided with a guide rod 37, fixing piles 36 are welded on both sides of the guide rod 37, the rear end of each fixing pile 36 is fixedly connected with the outer surface of the front end of the first sliding table 21 through screws, a sleeve 38 is fixed on the outer surface of the fixing box 7 through screws, the guide rod 37 penetrates through the inner side of the sleeve 38, the sleeve 38 and the guide rod 37 form a sliding structure, the sleeve 38 is fixed on the fixing box 7, and the guide rod 37 penetrates through the sleeve 38, so that when the fixing box 7 slides on the first sliding table 21, the sleeve 38 can slide along the guide rod 37, and the fixing box 7 is more stable in sliding.

The lower surface of the first sliding table 21 is provided with a second sliding table 24, the bottom end of the second sliding table 24 is fixed with a first support frame 25 through screws, the internal structure of the first support frame 25 is the same as the internal structure of the first sliding table 21, the first sliding table 21 and the second sliding table 24 form a sliding structure, the bottom end of the first support frame 25 is fixedly connected with the upper surface of the processing table 1 through screws, the lower surface of the first sliding table 21 is fixed with a sliding block 35 through screws, the outer surface of the sliding block 35 is sleeved with a sliding sleeve 30, the outer surface of the sliding block 35 is matched with the inner wall of the sliding sleeve 30, the sliding block 35 and the sliding sleeve 30 form a sliding structure, the lower surface of the sliding sleeve 30 is fixed with a second support frame 29 through screws, the bottom end of the second support frame 29 is fixedly connected with the upper surface of the processing table 1 through screws, the connecting mode of the first sliding table 21 and the second sliding table 24 is the same as the connecting mode of the screw, as shown in fig. 6, when the slide block 35 is slidably coupled to the slide sleeve 30, the slide block 35 can slide in the slide sleeve 30 even when the first slide table 21 slides back and forth, thereby improving the sliding stability of the first slide table 21.

The upper surface of the processing table 1 is fixed with a second pneumatic telescopic rod 26 through screws, the output end of the second pneumatic telescopic rod 26 is fixed with a clamping block 27 through screws, and the upper surface of the clamping block 27 is provided with a curved plate 14.

Preferably, a supporting pile 32 is welded on the upper surface of the clamping block 27, a pressing rod 28 is arranged on the inner side of the supporting pile 32, one end of the pressing rod 28 penetrates through a third connecting shaft 33, the other end of the pressing rod 28 is connected with a pressing roller 31 through a rotating shaft, the pressing roller 31 and the pressing rod 28 form a rotating structure, the lower surface of the pressing roller 31 is abutted against the outer surface of the curved plate 14, a torsion spring 34 is sleeved on the outer surface of the third connecting shaft 33, one end of the torsion spring 34 is fixedly connected with the third connecting shaft 33, the other end of the torsion spring 34 is fixedly connected with the pressing rod 28, the pressing rod 28 and the torsion spring 34 form an elastic structure, the pressing rod 28 and the third connecting shaft 33 form a rotating structure, as shown in fig. 1 and 5, the pressing rod 28 is assembled on the top end of the clamping block 27, so that the torsion spring 34 can be always in the state shown in fig. 5, the auxiliary clamp blocks 27 clamp and fix the curved plate 14, thereby facilitating the positioning of the curved plate 14.

The working principle is as follows: firstly, connecting and fixing an air supply pipe of an external compressor with a first pneumatic telescopic rod 3 and a second pneumatic telescopic rod 26 to enable the first pneumatic telescopic rod 3 and the second pneumatic telescopic rod 26 to have pneumatic sources, and then enabling the curved surface punching device which is used for agricultural machining and is convenient to position to be in an electrified state through an external power supply;

then, the curved plate 14 is put on the clamping block 27, the second pneumatic telescopic rod 26 is controlled to be electrified through an external control switch, the second pneumatic telescopic rod 26 drives the clamping block 27 to clamp the curved plate 14, the curved plate 14 is fixed on the clamping block 27, the first pneumatic telescopic rod 3 is controlled to be electrified through the external control switch to work, the first pneumatic telescopic rod 3 controls the drilling machine 2 to lift, and the hole drilling machine 2 is used for drilling the upper surface of the curved plate 14;

when the position of the drilling machine 2 needs to be adjusted, the second sliding table 24 is electrified to work, the first sliding table 21 can be driven to move back and forth, the drilling machine 2 can move back and forth, the motor 23 is electrified to work, the motor 23 drives the lead screw 22 to rotate, the lead screw 22 can drive the screw sleeve 8 to move left and right, the screw sleeve 8 can drive the dial 6 to move left and right through the fixing box 7, and the dial 6 drives the drilling machine 2 to move left and right through the fixing plate 4;

when the angle of the drilling machine 2 needs to be adjusted, the limiting pin 17 is pushed only by pressing the push rod 18, the limiting pin 17 is far away from the limiting gear 15, the limitation of the limiting gear 15 can be relieved, the hand wheel 9 can rotate, the first connecting shaft 10 is driven to rotate by rotating the hand wheel 9, the first connecting shaft 10 can drive the second bevel gear 13 to rotate through the first bevel gear 11, the second bevel gear 13 drives the fixing plate 4 to rotate through the second connecting shaft 12, the fixing plate 4 can rotate on the dial 6, and the fixing plate 4 drives the drilling machine 2 to adjust the angle.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a curved surface perforating device convenient to location based on agricultural machining, includes processing platform (1), drilling machine (2), first pneumatic telescopic link (3), curved plate spare (14), first slip table (21), motor (23), second slip table (24) and second pneumatic telescopic link (26), its characterized in that: the outer surface cover of drilling machine (2) is equipped with fixed establishment (5), the output of first pneumatic telescopic link (3) passes through the screw and is connected fixedly with the top of drilling machine (2), and the rear end of first pneumatic telescopic link (3) has fixed plate (4) through screwed connection, the rear end surface of fixed plate (4) has second connecting axle (12) through screwed fixation, the surface cover of second connecting axle (12) is equipped with calibrated scale (6), and the rear end surface of fixed plate (4) and the laminating of the front end surface of calibrated scale (6), the rear end cover of second connecting axle (12) has second conical gear (13), the rear end of second conical gear (13) is provided with first conical gear (11), the bottom of first conical gear (11) is inserted and is equipped with first connecting axle (10), hand wheel (9) has been cup jointed to the bottom of first connecting axle (10), a fixing box (7) is fixed on the outer surface of the rear end of the dial plate (6) through screws, the outer surface of the rear end of the fixed box (7) is fixed with a screw sleeve (8) through a screw, a first sliding table (21) is arranged at the rear end of the fixed box (7), a screw rod (22) is arranged on the inner side of the first sliding table (21), and the screw rod (22) penetrates through the inner side of the screw sleeve (8), the outer surface of the first sliding table (21) is fixed with a motor (23) through screws, a second sliding table (24) is arranged on the lower surface of the first sliding table (21), a first supporting frame (25) is fixed at the bottom end of the second sliding table (24) through screws, a second pneumatic telescopic rod (26) is fixed on the upper surface of the processing table (1) through screws, the output end of the second pneumatic telescopic rod (26) is fixed with a clamping block (27) through a screw, and the upper surface of the clamping block (27) is provided with a curved plate (14).

2. The curved surface perforating device convenient to position based on agricultural machining of claim 1, characterized in that: fixed establishment (5) are including fixed cover (51), recess (52) and ball (53), the rear end of fixed cover (51) is passed through the screw and is connected fixedly with the front end surface of fixed plate (4), the front end of fixed cover (51) is the arc structure, drilling machine (2) set up in the inboard of fixed cover (51).

3. The curved surface perforating device convenient to position based on agricultural machining of claim 2, characterized in that: seted up recess (52) on the inner wall of fixed cover (51), the inboard of recess (52) is provided with ball (53), the inner wall of recess (52) is smooth, ball (53) and recess (52) constitution rotating-structure, ball (53) contradict with the surface of drilling machine (2), drilling machine (2) and fixed cover (51) constitution elevation structure.

4. The curved surface perforating device convenient to position based on agricultural machining of claim 1, characterized in that: the lower surface of fixed box (7) pierces through and has seted up logical groove (16), the inboard that leads to groove (16) runs through and is provided with spacer pin (17), and the surface of spacer pin (17) rotates through the inner wall of pivot with logical groove (16) and is connected, the lower skin weld of fixed box (7) has connecting pile (19), the bottom of connecting pile (19) is run through and is provided with push rod (18), the surface of calibrated scale (6) is run through to the one end of push rod (18), and the other end of push rod (18) is articulated with the bottom of spacer pin (17), the surface cover of push rod (18) is equipped with spring (20), elastic construction is constituteed with spring (20) in push rod (18).

5. The curved surface perforating device convenient to position based on agricultural machining of claim 4, characterized in that: limiting gear (15) have been cup jointed to first connecting axle (10) surface, the surface of limiting gear (15) and the top block of spacer pin (17), the surface of fixed box (7) is run through to the bottom of first connecting axle (10), and just first connecting axle (10) rotate with fixed box (7) through the bearing and be connected, first conical gear (11) and second conical gear (13) meshing, second connecting axle (12) rotate with calibrated scale (6) through the bearing and are connected.

6. The curved surface perforating device convenient to position based on agricultural machining of claim 1, characterized in that: the front end of first slip table (21) is provided with guide arm (37), the both sides of guide arm (37) all weld spud pile (36), and the rear end of spud pile (36) passes through the screw and is fixed with the front end surface connection of first slip table (21), the surface of fixed box (7) has sleeve (38) through the screw fixation, guide arm (37) run through the inboard of sleeve (38), sliding construction is constituteed with guide arm (37) sleeve (38).

7. The curved surface perforating device convenient to position based on agricultural machining of claim 1, characterized in that: the inner wall that the one end of lead screw (22) passed through bearing and first slip table (21) rotates to be connected, the other end of lead screw (22) passes through the shaft coupling and is connected fixedly with the output of motor (23), sliding structure is constituteed with lead screw (22) in silk cover (8).

8. The curved surface perforating device convenient to position based on agricultural machining of claim 1, characterized in that: the inner structure of first support frame (25) is the same with the inner structure of first slip table (21), sliding structure is constituteed with second slip table (24) in first slip table (21), the upper surface connection that screw and processing platform (1) were passed through to the bottom of first support frame (25) is fixed, the lower surface of first slip table (21) has slider (35) through the screw fixation, the surface cover of slider (35) is equipped with sliding sleeve (30), the surface of slider (35) coincide with the inner wall of sliding sleeve (30), sliding structure is constituteed with sliding sleeve (30) in slider (35), the lower surface of sliding sleeve (30) has second support frame (29) through the screw fixation, and the upper surface connection that screw and processing platform (1) were passed through to the bottom of second support frame (29) is fixed.

9. The curved surface perforating device convenient to position based on agricultural machining of claim 1, characterized in that: the last surface welding of clamp splice (27) has support stake (32), the inboard of supporting stake (32) is provided with depression bar (28), the one end of depression bar (28) is run through and is provided with third connecting axle (33), and the other end of depression bar (28) is connected with compression roller (31) through the pivot, revolution mechanic is constituteed with depression bar (28) compression roller (31), the lower surface of compression roller (31) is contradicted with the surface of curved plate spare (14).

10. The curved surface perforating device for agricultural machining based on of claim 9, which is convenient for positioning, characterized in that: the surface cover of third connecting axle (33) is equipped with torsional spring (34), the one end and the third connecting axle (33) of torsional spring (34) are connected fixedly, the other end and depression bar (28) of torsional spring (34) are connected fixedly, depression bar (28) and torsional spring (34) constitute elastic construction, rotation structure is constituteed with third connecting axle (33) in depression bar (28).