阅读说明：本技术 一种可快速换装的双面精密镗孔装置 (Double-sided precise boring device capable of being replaced and assembled quickly ) 是由 周金锋 侯忠举 田平风 傅云 于 2021-08-19 设计创作，主要内容包括：本发明涉及一种可快速换装的双面精密镗孔装置,包括镗孔夹具、机械手抓取装置,机外立式旋转平台定位装置,快换固定基座组件,所述镗孔夹具的两面分别夹装设有零件,本发明优点在于可实现零件快速定位,双面装夹保证成对零件孔位一致性,保证成对零件高精度的孔同轴度及孔对外形轮廓的位置度；并且配合机械手抓取装置及气动定位卡盘,实现高效的自动化换装夹具,可满足多套夹具高精度快速换装；缩短了多品种小批量工件镗孔的生产节拍,提高生产效率,提升机床有效稼动率。(The invention relates to a double-sided precise boring device capable of being quickly replaced, which comprises a boring clamp, a manipulator grabbing device, an external vertical rotary platform positioning device and a quick-change fixing base assembly, wherein parts are respectively clamped on two sides of the boring clamp; in addition, the manipulator grabbing device and the pneumatic positioning chuck are matched, so that efficient automatic reloading fixtures are realized, and high-precision quick reloading of multiple sets of fixtures can be met; the production takt of boring the multiple varieties of small-batch workpieces is shortened, the production efficiency is improved, and the effective utilization rate of the machine tool is improved.)

1. A double-sided precise boring device capable of being replaced quickly is characterized by comprising a boring clamp, a manipulator grabbing device, an external vertical rotary platform positioning device and a quick-replacement fixing base assembly, wherein parts are respectively clamped on two sides of the boring clamp;

the boring jig comprises a jig base plate, two end faces of the jig base plate are respectively provided with a part bottom surface positioning block, two end faces of the jig base plate are respectively provided with a part clamping error-proofing device, two end faces of the jig base plate are respectively provided with a part outline positioning block, two end faces of the jig base plate are respectively provided with a tail positioning clamp, two end faces of the jig base plate are respectively provided with a plane quick clamp, two end faces of the jig base plate are respectively provided with a positioning rivet, one side of the jig base plate is provided with a rotary platform positioning block, and one end of the jig base plate is fixedly provided with the manipulator grabbing device.

2. The double-sided precision boring device capable of being replaced quickly as claimed in claim 1, wherein the positioning nails are respectively arranged on two end faces of the clamp base plate, the part contour positioning blocks are respectively arranged on two end faces of the clamp base plate, a plurality of the part contour positioning blocks are uniformly distributed on two sides of the clamp base plate, a knob presser is rotatably arranged on one of the part contour positioning blocks, the knob presser is connected with the part contour positioning blocks through threads, the knob presser penetrates through the part contour positioning blocks, the part contour positioning blocks are mounted on the clamp base plate through screws, the parts are clamped between the part contour positioning blocks, the part contour positioning blocks are attached to the parts, and a tail positioning clamp is arranged beside the part contour positioning blocks, the tail positioning clamp is used for clamping the tail of the part, and the plane quick clamp is used for clamping the bottom surface of the part.

3. The double-sided precision boring device capable of being replaced quickly as claimed in claim 2, wherein the tail positioning clamp comprises a positioning support block, the positioning support block is positioned and locked on the clamp base plate through a bottom positioning pin and a bolt, the positioning support block is provided with a pressing block, and the pressing block is provided with a bolt and a nut.

4. The quick-change-over double-sided precision boring device as claimed in claim 2, wherein the planar quick clamp comprises a fixed base, a rotating shaft is fixedly arranged on the fixed base, a rotating pressing plate is rotatably arranged on the rotating shaft, clamps are arranged at two ends of the rotating shaft, a bolt rotating shaft is fixedly arranged inside the fixed base, a bolt is arranged in the bolt rotating shaft, and the fixed base is arranged on the clamp base plate through the bolt.

5. The double-sided precision boring device capable of being replaced quickly as claimed in claim 6, wherein the planar quick clamping device can press the part, the shape of the rotary pressure plate in the planar quick clamping device is different according to different press-fitting positions, and the rotary pressure plate is matched with the shape of the part at the corresponding position.

6. The double-sided precision boring device capable of being quickly replaced and replaced according to claim 1, wherein the manipulator grabbing device comprises a transition block, the transition block is positioned and installed on a clamp base plate through a positioning pin and a bolt, a rivet connecting plate is fixedly arranged on the transition block, a gripper rivet is fixedly arranged on the rivet connecting plate, a positioning pin is fixedly arranged on the rivet connecting plate, and the two positioning pins are respectively arranged on two sides of the gripper rivet.

7. The double-sided precision boring device capable of being quickly replaced and replaced as claimed in claim 1, wherein the quick-replacement fixing base assembly comprises a gas circuit substrate, a plurality of positioning and locking chucks are uniformly arranged on the gas circuit substrate, the positioning and locking chucks correspond to the positioning blind rivets arranged on the same surface of the clamp substrate, an air source interface is arranged on the side surface of the gas circuit substrate, lifting bolts are arranged on the gas circuit substrate, and the lifting bolts are uniformly distributed on the working surface and the side surface of the gas circuit substrate.

8. The double-sided precision boring device capable of being quickly replaced and assembled as claimed in claim 6, wherein the positioning and locking chuck is provided with a clamping airtight detection interface, a loosening detection interface and a pressurizing detection interface.

Technical Field

The invention relates to the field related to clamps, in particular to a double-sided precise boring device capable of being replaced and assembled quickly.

Background

In the field of aeromechanical processing, most machined parts need to be provided with bushings, in order to ensure the assembly relation among the parts, the requirement on the size precision of the inner holes of the bushings is extremely high, in addition, more parts are installed in pairs by penetrating shafts, so the coaxiality of the installation holes of the paired parts has extremely high requirement, and the installation holes have high requirement relative to the outline of the parts after installation; for the aviation parts, after the bushing is installed, the bushing needs to be bored, so that the assembly matching relation is ensured;

the machining parts in the aviation field have the characteristics of small batch and multiple varieties, so that the machining parts need to be replaced for multiple times to meet the characteristics, and the single replacement time is a decisive factor for the machining efficiency;

at present, most of the existing precise boring devices adopt single-side clamping boring, and the hole precision and the position requirement of a single part hole relative to the outline are ensured; because the holes are bored separately, deviation is inevitably generated, and the hole after being installed in pairs is extremely difficult to ensure relative to the outline of the part;

for part clamping, most of the conventional boring devices adopt a universal pressing plate for clamping, the clamping time is long, the clamping position is unstable, the efficiency is low, and the instability of products is easily caused;

for fixture changing, a single part boring adopted at present is changed into a fixture once, the fixture is hoisted manually, the hoisting is required to be straightened and aligned again on a machine tool every time, only one part can be processed every time the clamping is completed, the preparation time is very long, and the effective utilization rate of equipment is extremely low.

Disclosure of Invention

The invention aims to provide a double-sided precise boring device capable of being replaced quickly, and the double-sided precise boring device can be used for solving the problems.

The invention realizes the purpose through the following technical scheme: a double-sided precise boring device capable of being replaced quickly is characterized by comprising a boring clamp, a manipulator grabbing device, an external vertical rotary platform positioning device and a quick-replacement fixing base assembly, wherein parts are respectively clamped on two sides of the boring clamp;

the boring jig comprises a jig base plate, two end faces of the jig base plate are respectively provided with a part bottom surface positioning block, two end faces of the jig base plate are respectively provided with a part clamping error-proofing device, two end faces of the jig base plate are respectively provided with a part outline positioning block, two end faces of the jig base plate are respectively provided with a tail positioning clamp, two end faces of the jig base plate are respectively provided with a plane quick clamp, two end faces of the jig base plate are respectively provided with a positioning rivet, one side of the jig base plate is provided with a rotary platform positioning block, and one end of the jig base plate is fixedly provided with the manipulator grabbing device.

Preferably, the two end surfaces of the clamp base plate are respectively provided with six positioning pull nails which are uniformly distributed on two sides of the clamp base plate, the two end surfaces of the clamp base plate are respectively provided with four part outline positioning blocks, the four part outline positioning blocks are uniformly distributed on two sides of the clamp base plate, two part outline positioning blocks on one side are rotatably provided with knob pressers which are connected with the part outline positioning blocks through threads, the knob pressers penetrate through the part outline positioning blocks, the part outline positioning blocks are mounted on the clamp base plate through screws, the parts are clamped among the part outline positioning blocks, and the mounting postures of the part outline positioning blocks are adjusted, the part outline positioning block is attached to the part, two tail positioning clamping devices are arranged beside the part outline positioning block and used for clamping the tail of the part, and the plane quick clamping device is used for clamping the bottom surface of the part.

Preferably, the tail positioning clamp comprises a positioning support block, the positioning support block is positioned and locked on the clamp substrate through a bottom positioning pin and a bolt, the positioning support block is provided with a pressing block, and the pressing block is provided with a bolt and a nut.

Preferably, the plane rapid clamping device comprises a fixed base, a rotating shaft is fixedly arranged on the fixed base, a rotating pressing plate is rotatably arranged on the rotating shaft, clamps are arranged at two ends of the rotating shaft, a bolt rotating shaft is fixedly arranged in the fixed base, a bolt is arranged in the bolt rotating shaft, and the fixed base is arranged on a clamp base plate through the bolt.

Preferably, the plane rapid clamping device can press the part, the shape of the rotary pressure plate in the plane rapid clamping device is different according to different press-fitting positions, and the shape of the rotary pressure plate is matched with that of the part at the corresponding position, so that the part can be stably pressed, and the part is prevented from deviating during boring.

Preferably, the manipulator grabbing device comprises a transition block, the transition block is positioned and installed on a clamp base plate through a positioning pin and a bolt, a rivet connecting plate is fixedly arranged on the transition block, a gripper rivet is fixedly arranged on the rivet connecting plate, a positioning pin is fixedly arranged on the rivet connecting plate, and the two positioning pins are respectively arranged on two sides of the gripper rivet.

Preferably, the quick-change fixed base assembly comprises an air path substrate, six positioning and locking chucks are uniformly arranged on the air path substrate, the six positioning and locking chucks correspond to the six positioning and pulling nails arranged on the same surface of the clamp substrate, an air source interface is arranged on the side surface of the air path substrate, eight lifting bolts are arranged on the air path substrate, and the eight lifting bolts are uniformly distributed on the working surface and the side surface of the air path substrate.

Preferably, the positioning and locking chuck is provided with a clamping airtight detection interface, a loosening detection interface and a pressurizing detection interface.

Compared with the prior art, the invention has the following beneficial effects: the invention has the advantages that the quick positioning of parts can be realized, the consistency of the hole positions of the paired parts is ensured by double-sided clamping, and the high-precision hole coaxiality and the hole position of the paired parts to the outline are ensured; in addition, the manipulator grabbing device and the pneumatic positioning chuck are matched, so that efficient automatic reloading fixtures are realized, and high-precision quick reloading of multiple sets of fixtures can be met; the production takt of boring the multiple varieties of small-batch workpieces is shortened, the production efficiency is improved, and the effective utilization rate of the machine tool is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of double-sided clamping of parts in accordance with the practice of the present invention;

FIG. 3 is a schematic view of the back of the boring fixture of FIG. 2 in accordance with the practice of the present invention;

FIG. 4 is a schematic front view of the boring fixture of FIG. 2 in accordance with the practice of the present invention;

FIG. 5 is a schematic view of the tail positioning clamp of FIG. 4 in accordance with the practice of the present invention;

FIG. 6 is a schematic view of the flat panel quick clamp of FIG. 3 embodying the present invention;

FIG. 7 is a schematic view of the robot gripping device of FIG. 4 embodying the present invention;

FIG. 8 is a schematic view of the quick-change mounting base assembly of FIG. 1 in accordance with the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

a double-sided precise boring device capable of being quickly replaced and assembled is shown in figures 1-2 and comprises a boring clamp (1), a manipulator grabbing device (2), an external vertical type rotary platform positioning device (3) and a quick-change fixing base assembly (4), wherein parts (5) are respectively clamped on two sides of the boring clamp (1);

bore hole anchor clamps (1) include anchor clamps base plate (120), the both ends face of anchor clamps base plate (120) is equipped with part bottom surface locating piece (11) respectively, the both ends face of anchor clamps base plate (120) is equipped with part clamping mistake proofing device (13) respectively, the both ends face of anchor clamps base plate (120) is equipped with part appearance profile locating piece (12) respectively, the both ends face of anchor clamps base plate (120) is equipped with afterbody location binding clasp (19) respectively, the both ends face of anchor clamps base plate (120) is equipped with quick binding clasp (16) in plane respectively, the both ends face of anchor clamps base plate (120) is equipped with location blind rivet (17) respectively, one side of anchor clamps base plate (120) is equipped with rotary platform locating piece (15), the one end of anchor clamps base plate (120) is fixed to be equipped with manipulator grabbing device (2).

Furthermore, the two end faces of the clamp substrate (120) are respectively provided with six positioning pull nails (17), the six positioning pull nails (17) are uniformly distributed on the two sides of the clamp substrate (120), the two end faces of the clamp substrate (120) are respectively provided with four part contour positioning blocks (12), the four part contour positioning blocks (12) are uniformly distributed on the two sides of the clamp substrate (120), two part contour positioning blocks (12) on one side are rotatably provided with knob pressers (14), the knob pressers (14) are connected with the part contour positioning blocks (12) through threads, the knob pressers (14) penetrate through the part contour positioning blocks (12), and the part contour positioning blocks (12) are installed on the clamp substrate (120) through screws, a plurality of clamping device is equipped with between part appearance contour positioning piece (12) part (5), through adjusting part appearance contour positioning piece (12) installation gesture makes part appearance contour positioning piece (12) laminating part (5), part appearance contour positioning piece (12) side is equipped with two afterbody location binding clasp (19), two afterbody location binding clasp (19) are used for pressing from both sides the afterbody of part (5), quick binding clasp (16) in plane are used for pressing from both sides the bottom surface of part (5).

Furthermore, the tail positioning clamp (19) comprises a positioning support block (196), the positioning support block (196) is positioned and locked on the clamp substrate (120) through a bottom positioning pin (195) and a bolt (194), the positioning support block (196) is provided with a pressing block (191), and the pressing block (191) is provided with a bolt (192) and a nut (193).

Further, quick binding clasp (16) in plane includes fixed baseplate (161), fixed being equipped with rotation axis (164) on fixed baseplate (161), rotation is equipped with rotary pressing plate (162) on rotation axis (164), rotation axis (164) both ends set up clamp (165), fixed baseplate (161) inside fixed being equipped with bolt rotation axis (167), the installation is equipped with bolt (163) in bolt rotation axis (167), fixed baseplate (161) is installed on anchor clamps base plate (120) through bolt (168).

Furthermore, the plane rapid clamping device (16) can press the part (5), the shape of the rotary pressing plate (162) in the plane rapid clamping device (16) is different according to different press-fitting positions, and the rotary pressing plate (162) is matched with the shape of the part (5) at the corresponding position, so that the part (5) can be stably pressed, and the part (5) is prevented from deviating during boring.

Further, the manipulator grabbing device (18) comprises a transition block (181), the transition block (181) is positioned and installed on the clamp base plate (120) through a positioning pin (186) and a bolt (185), a blind rivet connecting plate (182) is fixedly arranged on the transition block (181), a claw-holding blind rivet (183) is fixedly arranged on the blind rivet connecting plate (182), a positioning pin (184) is fixedly arranged on the blind rivet connecting plate (182), and the two positioning pins (184) are respectively arranged on two sides of the claw-holding blind rivet (183).

Further, fixed base subassembly (4) of quick change includes gas circuit base plate (41), the equipartition installation is equipped with six location locking chucks (42) on gas circuit base plate (41), six location locking chucks (42) with install in six of anchor clamps base plate (120) coplanar location blind rivet (17) position is corresponding, gas circuit base plate (41) side-mounting air supply interface (44), the installation is equipped with eight eyebolts (43) on gas circuit base plate (41), eight eyebolt (43) evenly distributed is in on the working surface and the side of gas circuit base plate (41).

Furthermore, a clamping airtight detection interface (45), a loosening detection interface (46) and a pressurizing detection interface (47) are arranged on the positioning locking chuck (42).

When the quick-change double-sided precise boring device is used, the quick-change double-sided precise boring device comprises a boring clamp (1) capable of clamping on double sides, a manipulator grabbing device (2) is installed on the side face of the boring clamp (1), an external vertical type rotary platform positioning device (3) is installed on the side face of the boring clamp (1), and a boring clamp quick-change fixing base assembly (4) is connected with a machine tool workbench through a bolt hole;

an outer part clamping rotary platform positioning block (15) is arranged on the side surface of the boring clamp (1), the boring clamp (1) is vertically positioned on an outer rotary platform through the rotary platform positioning block (15), and the boring clamp is clamped on the rotary platform;

a plurality of bottom surface positioning blocks (11) are arranged on the clamp base plate (120), and the bottom surfaces of the parts (5) are positioned on the bottom surface positioning blocks; the tail positioning clamp (19) is arranged on the clamp base plate (120), and the tail of the part (5) is positioned on the tail positioning clamp (19); a part outline positioning block (12) is arranged on the clamp substrate (120), and the part (5) is positioned and abutted against the outline positioning block (12); after the part (5) is positioned, the knob presser (14) is screwed down, the bolt 192 is screwed down, the pressing block (191) presses the part (5) on the positioning support block (196), the rotary press plate (162) is rotated, the bolt (163) is rotated, and the bolt is screwed down to enable the rotary press plate (162) to press the part (5) on the bottom surface positioning block (11); after the front side is clamped, rotating the outer rotating platform of the machine, and carrying out back side clamping; all parts (5) are contacted with the positioning blocks and need to be subjected to quenching and tempering treatment, the surface hardness HRC is more than or equal to 28, the surface is subjected to blackening and rust prevention treatment, and the surface roughness is less than or equal to Ra1.6; copper inlaying technology is adopted at the contact position of all the pressing plates and the part (5) to prevent the part (5) from being damaged by pressure;

the manipulator gripping device (18) is arranged on the side surface of the clamp substrate (120) through a positioning pin (186) and a bolt (185); after the front and back clamping of the part (5) is completed on the in-machine out-turning platform, the mechanical arm is connected and fixed through a grabbing device (18) on the clamp substrate (120) to grab the boring clamp (1);

the quick-change fixed base assembly (4) is fixed on a machine tool platform by using a bolt, the quick-change fixed base assembly (4) is straightened and corrected on the machine tool, an air pipe is connected onto an air source interface (44), and sensors are respectively connected onto a clamping airtightness detection interface (45), a loosening detection interface (46) and a pressurization detection interface (47) on a locking chuck (42);

the boring fixture (1) is grabbed by the mechanical arm, the blind rivet (17) is aligned to the center of the locking chuck (42), and the blind rivet is inserted into the locking chuck (42); the locking chuck (42) is locked to complete the positioning and clamping of the boring clamp (1), and the manipulator is reset and moved out of the machine tool; after the boring tool is clamped, the chuck is locked to carry out airtight detection, the detection condition is fed back to a PLC control system outside the machine through a sensor, when the detection is qualified, a program is started to carry out boring work, when the detection is unqualified, the sensor sends out an alarm, and after a fault is eliminated, the program is started to carry out boring work; in the boring working process, the pressurization sensor continuously works, and when the clamping force of the locking chuck (42) is detected to be attenuated, the positive pressure sensor feeds back to the PLC outside the machine for pressurization control;

after the boring fixture is clamped, boring work is carried out, parts (5) on the front surface and the back surface are bored at one time, and the consistency of the hole positions on the front surface and the back surface is guaranteed; after boring work is finished, the locking chuck (42) loosens the blind rivet (18), loosening detection is carried out, the blind rivet (42) is prevented from being loosened incompletely, the clamp is damaged by pulling, the loose detection sensor is transmitted to an external PLC system, the boring clamp (1) is grabbed by the manipulator, the clamp is placed on an external rotating platform, and the part (5) is disassembled; after the parts (5) are disassembled, the mechanical arm picks the boring fixture (1) to place a boring fixture bin, picks the next boring fixture (1) to place the quick-change fixing base assembly (4) to perform boring work on the next batch of parts (5), and performs continuous automatic circulation, so that the high-precision and high-efficiency fixture switching work of multiple varieties in small batches is met.

The foregoing shows and describes the general principles, principal features and advantages of the invention; it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.