阅读说明：本技术 自动翻转定位工装夹具及三坐标测量机 (Automatic overturning and positioning tool fixture and three-coordinate measuring machine ) 是由 陈�峰 龙宽 张锋林 赵龙灿 刘莹波 贾开来 于 2021-09-09 设计创作，主要内容包括：本发明公开了一种自动翻转定位工装夹具及三坐标测量机,包括盛放装置,所述盛放装置用于放置待测零件,且所述盛放装置带动待测零件翻转以适应三坐标测量机检测；压紧装置,所述压紧装置连接盛放装置,所述压紧装置用于对所述盛放装置上的待测零件锁紧防止待测零件检测时偏移；翻转装置,所述翻转装置连接所述盛放装置,所述翻转装置用于驱使所述盛放装置转动并带动待测零件翻转以适应三坐标测量机检测,具有实现现有航空发动机不规则零件的多角度翻转定位以及自动夹紧的效果,并提高了检测的精准度。(The invention discloses an automatic overturning and positioning tool fixture and a three-coordinate measuring machine, which comprise a containing device, wherein the containing device is used for containing a part to be measured, and the containing device drives the part to be measured to overturn so as to adapt to the detection of the three-coordinate measuring machine; the pressing device is connected with the containing device and used for locking the part to be detected on the containing device to prevent the part to be detected from shifting during detection; turning device, turning device connects hold the device, turning device is used for ordering about hold the device and rotate and drive the part upset that awaits measuring and detect in order to adapt to the three-dimensional measuring machine, have the multi-angle upset location and the self-holding's of realizing current aeroengine irregular part effect to the precision of detection has been improved.)

1. The utility model provides an automatic upset location frock clamp which characterized in that: the method comprises the following steps:

the device comprises a containing device (1), wherein the containing device (1) is used for placing a part to be measured, and the containing device (1) drives the part to be measured to turn over so as to adapt to the detection of a three-coordinate measuring machine;

the pressing device (3) is connected with the containing device (1), and the pressing device (3) is used for locking a part to be detected on the containing device (1) to prevent the part to be detected from shifting during detection;

turning device (5), turning device (5) are connected hold device (1), turning device (5) are used for ordering about hold device (1) and rotate and drive the part upset that awaits measuring and detect in order to adapt to the three-coordinate measuring machine and detect.

2. The automatic overturning and positioning tool clamp of claim 1, wherein: hold device (1) including holding platform (11), hold placing that platform (11) are used for the part that awaits measuring, the both sides that hold platform (11) are rotated through the pivot and are connected with support frame (12), support frame (12) are used for right hold platform (11) and support, it is provided with positioner (2) on platform (11) to hold, positioner (2) are used for fixing a position the part installation that awaits measuring.

3. The automatic overturning and positioning tool clamp of claim 2, wherein: the positioning device (2) comprises a positioning column (21), the positioning column (21) is arranged on the containing table (11), the positioning column (21) is circumferentially arranged, and a part to be detected moves along the containing table (11) and is abutted to the positioning column (21).

4. The automatic overturning and positioning tool clamp of claim 3, wherein: the pressing device (3) comprises a base (31), a mandril (33), a pressure lever (34) and a balancing weight (32), the containing table (11) is provided with an installation groove (35), the base (31) is arranged along the bottom of the installation groove (35), the balancing weight (32) is arranged on the containing table (11), one end of the ejector rod (33) is fixed with the balancing weight (32), the other end of the ejector rod (33) is arranged on the base (31), one end of the ejector rod (33) is arranged on the base (31) and connected with the ejector rod (33), the pressing rod (34) is provided with an abutting part (36), the holding platform (11) is provided with a pushing component (4), the pushing assembly (4) is used for clamping the part to be tested and applying a jacking force to the ejector rod (33) to drive the pressing rod (34) to drive the abutting part (36) to abut against the part to be tested.

5. The automatic overturning and positioning tool clamp of claim 4, wherein: the abutting part (36) comprises an abutting column (361) and an abutting plug (362), the abutting column (361) penetrates through the pressing rod (34) and is fixed on the pressing rod (34), the abutting plug (362) is connected to the bottom end of the pressing rod (34), and the pressing rod (34) drives the abutting column (361) and the abutting plug (362) to abut against the part to be measured.

6. The automatic overturning and positioning tool clamp of claim 4, wherein: promote subassembly (4) including pneumatic cylinder (41), push pedal (42), swash plate (43) and support pole (44), pneumatic cylinder (41) set up and hold on platform (11), it is provided with spout (45) on platform (11) to hold, push pedal (42) along spout (45) remove, the both ends at push pedal (42) are connected respectively in swash plate (43), swash plate (43) along hold platform (11) remove and butt in the bottom of ejector pin (33) is used for the jacking ejector pin (33), support pole (44) set up in on push pedal (42) and along push pedal (42) remove and support tightly the part that awaits measuring, the output of pneumatic cylinder (41) is connected push pedal (42) are used for promoting push pedal (42) are followed spout (45) remove.

7. The automatic overturning and positioning tooling clamp of claims 2-6, wherein: turning device (5) include worm wheel (51) in worm (52), worm wheel (51) with it is fixed to hold a pivot end of platform (11), worm (52) rotate connect in on support frame (12), worm (52) with worm wheel (51) meshing, be provided with drive assembly (53) on worm (52), drive assembly (53) are used for driving about worm (52) rotate, another pivot end of holding platform (11) is provided with prevents reversing subassembly (54), prevent reversing subassembly (54) and be used for making hold platform (11) along a direction unidirectional rotation and prevent hold platform (11) and reverse, and prevent hold platform (11) and reverse and lead to the part that awaits measuring to detect and have the error.

8. The automatic overturning and positioning tool clamp of claim 7, wherein: drive assembly (53) include action wheel (531), follow driving wheel (532), belt (534) and motor (533), follow driving wheel (532) with worm (52) coaxial coupling, action wheel (531) rotate connect in on support frame (12), belt (534) cover is established in action wheel (531) with follow driving wheel (532) go up and be the tensioning setting, the output shaft of motor (533) with action wheel (531) coaxial fixation.

9. The automatic overturning and positioning tool clamp of claim 7, wherein: the anti-reversing assembly (54) comprises a ratchet wheel (541) and a pawl (543), the ratchet wheel (541) is coaxially fixed with the rotating shaft end of the containing table (11), the pawl (543) is arranged on the support frame (12), and the pawl (543) is meshed with the ratchet wheel (541).

10. A three coordinate measuring machine, characterized by: the automatic overturning and positioning tooling clamp comprises the automatic overturning and positioning tooling clamp disclosed by any one of claims 1-9.

Technical Field

The invention relates to the technical field of detection of parts of aero-engines, in particular to an automatic overturning and positioning tool clamp. In addition, the invention also relates to a three-coordinate measuring machine comprising the automatic overturning and positioning tool clamp.

Background

In the field of aerospace, how to accurately and effectively measure annular workpieces such as casings, turbine guide discs and the like is a difficult problem. The workpiece has a complicated space structure inside, the profile of the blade profile is irregular, the workpiece cannot be kept perpendicular to the normal direction in real time during measurement, operation is troublesome, interference between a measuring head and the workpiece is easy to occur during measurement, and the measurement result is seriously influenced. At present, only a small amount of high-end equipment can realize five-axis linkage measurement in China, the number of turntables or turntables used for the matching measurement of five-axis machines is rare, the price of the turntable for loading the turntable is high, and the turntable cannot be combined with a conventional machine to realize the matching measurement. In order to enable the existing common three-coordinate tool set of a company to have a five-axis measuring function and realize the functions of space multi-angle overturning positioning and automatic clamping of a complex disc or cylindrical workpiece, the automatic overturning positioning tool set is specially designed and researched.

Disclosure of Invention

The invention provides an automatic overturning and positioning tool clamp, which aims to solve the technical problems that the existing common three-coordinate tool clamp has five-axis measurement function, but cannot realize the spatial multi-angle overturning and positioning and automatic clamping functions of a complex disc or cylindrical workpiece.

According to an aspect of the present invention, there is provided an automatic turning positioning tool clamp, comprising:

the holding device is used for holding the part to be measured and drives the part to be measured to turn over so as to adapt to the detection of the three-coordinate measuring machine;

the pressing device is connected with the containing device and used for locking the part to be detected on the containing device to prevent the part to be detected from shifting during detection;

and the turnover device is connected with the containing device and used for driving the containing device to rotate and drive the part to be detected to turn over so as to adapt to the detection of the three-coordinate measuring machine.

Through adopting above-mentioned technical scheme, when measuring the part that awaits measuring, through placing the part that awaits measuring on holding the device, lock the part that awaits measuring through closing device, according to the measurement angle of three-coordinate measuring machine, the part that awaits measuring that holds on the device overturns in order to adapt to the measurement of three-coordinate measuring machine under turning device's effect, when pressing from both sides the part that awaits measuring through current three-coordinate measuring machine, it presss from both sides the detection of pressing from both sides the part that awaits measuring in order to adapt to the three-coordinate through turning device upset to the part that awaits measuring, the multi-angle upset location and the self-holding's of realizing the irregular part of current aeroengine effect have, and the precision of detection has been improved.

Further, hold the device including holding the platform, hold the placing that the platform is used for the part that awaits measuring, the both sides that hold the platform rotate through the pivot and are connected with the support frame, the support frame is used for right hold the platform and support, it is provided with positioner to hold the bench, positioner is used for fixing a position the part installation that awaits measuring.

Through adopting above-mentioned technical scheme, through placing the part that awaits measuring at holding the bench, lock under closing device's effect, support holding the platform under the effect of support frame, play the effect that the part that awaits measuring stabilized the upset, realize accurate location installation through positioner.

Furthermore, the positioning device comprises a positioning column, the positioning column is arranged on the containing table and is circumferentially arranged, and the part to be detected moves along the containing table and is abutted against the positioning column.

Through adopting above-mentioned technical scheme, holding bench and being provided with a plurality of groups reference column, when holding the part that awaits measuring, through with the part that awaits measuring along holding the platform removal and the installation of fixing a position in reference column department of butt, realize the accurate location to the part that awaits measuring to and press from both sides tightly.

Further, closing device includes base, ejector pin, depression bar and balancing weight, it is provided with the mounting groove to hold the bench, the base is followed the mounting groove tank bottom sets up, the balancing weight set up in hold the bench, the one end of ejector pin with the balancing weight is fixed, the other end of ejector pin set up in on the base, the one end of ejector pin set up in on the base and with the ejector pin is connected, be provided with butt portion on the depression bar, it is provided with the promotion subassembly to hold the bench, the promotion subassembly is used for pressing from both sides tight part to be measured and exerts a jacking force to order about the depression bar to drive butt portion to support tight part to be measured to the ejector pin.

Through adopting above-mentioned technical scheme, through setting up the ejector pin between balancing weight and base, give the jacking force of ejector pin, give the decurrent pressure of depression bar under ejector pin and compression link, thereby through the effect that forms a four-bar dead angle location between depression bar, ejector pin and base and the balancing weight, thereby the effect of jacking ejector pin extrudees the depression bar downwards and will link the portion and support tightly and lock on the part that awaits measuring under the effect.

Further, the butt portion comprises a butt column and a butt plug, the butt column penetrates through the pressing rod and is fixed on the pressing rod, the butt plug is connected to the bottom end of the pressing rod, and the pressing rod drives the butt column and the butt plug to tightly abut against the part to be tested.

Through adopting above-mentioned technical scheme, wear to penetrate the butt post on the depression bar, the butt stopper through butt post bottom compresses tightly the part that awaits measuring, through setting up the butt stopper into rubber materials or plastic materials, can reduce the damage to the part that awaits measuring under the effect of butt stopper.

Further, promote the subassembly and include pneumatic cylinder, push pedal, swash plate and support the pole, the pneumatic cylinder sets up and is holding the bench, it is provided with the spout to hold the bench, the push pedal along the spout removes, the swash plate is connected respectively at the both ends of push pedal, the swash plate along hold the bench remove and butt in the bottom of ejector pin is used for the jacking the ejector pin, support the pole set up in on the push pedal and along the push pedal removes and supports tightly the part that awaits measuring, the output of pneumatic cylinder is connected the push pedal is used for promoting the push pedal is followed the spout removes.

Through adopting above-mentioned technical scheme, when jacking the ejector pin, order about the push pedal through the pneumatic cylinder and remove along the spout and give an apical lift with the swash plate butt in the bottom of ejector pin, give a decurrent pressure of depression bar under the effect of the jacking force of ejector pin, drive the butt post through the depression bar and compress tightly the part that awaits measuring with the butt stopper, realize the locking of the part that awaits measuring.

Further, turning device includes the worm wheel in the worm, the worm wheel with a pivot end that holds the platform is fixed, the worm rotate connect in on the support frame, the worm with the worm wheel meshing, be provided with drive assembly on the worm, drive assembly is used for ordering about the worm rotates, another pivot end that holds the platform is provided with prevents reversing the subassembly, prevent reversing the subassembly and be used for the restriction hold the platform along a direction unidirectional rotation and prevent hold platform (11) and reverse, and prevent hold the platform and reverse and lead to the part that awaits measuring to detect existence error.

Through adopting above-mentioned technical scheme, when overturning the drive part upset that awaits measuring to holding the platform, rotate through the worm and drive the worm wheel and rotate, drive the worm through drive assembly and rotate to realize mechatronic control, prevent to hold a upset gyration under the effect of preventing reversing the subassembly, reduce the part that awaits measuring and detect unstable condition and appear.

Further, drive assembly includes the action wheel, follows driving wheel, belt and motor, follow driving wheel with worm coaxial coupling, the action wheel rotate connect in on the support frame, the belt cover set up in the action wheel with follow driving wheel is last and be the tensioning setting, the output shaft of motor with the action wheel coaxial fastening.

Through adopting above-mentioned technical scheme, order about the action wheel through the motor and rotate, drive under the transmission of belt and rotate from the driving wheel, thereby drive from the driving wheel and rotate and order about the worm and rotate and drive worm wheel and rotate together, order about under the meshing of worm gear and worm and hold the platform and rotate, and will hold the platform through worm gear's self-locking function and stabilize at appointed rotation angle to detect the part optional position that awaits measuring through the three-coordinate measuring machine.

Further, the anti-reverse assembly comprises a ratchet wheel and a pawl, the ratchet wheel is coaxially fixed with the rotating shaft end of the containing platform, the pawl is arranged on the supporting frame, and the pawl is meshed with the ratchet wheel

Through adopting above-mentioned technical scheme, set up the ratchet pawl meshing on the support frame, when holding the platform and rotating, through ratchet and pawl meshing transmission, because the effect of the single direction pivoted of ratchet pawl, the limited platform that holds is along a direction unidirectional rotation and prevent under drive assembly's effect hold platform (11) and reverse.

According to another aspect of the invention, the invention also discloses a three-coordinate measuring machine which comprises the automatic overturning and positioning tool clamp.

Through adopting above-mentioned technical scheme, set up automatic upset location frock clamp on the three-dimensional measuring machine, need detect through the three-dimensional measuring machine when measuring cylindrical or annular part in the aeroengine field, press from both sides ring shape or cylindrical part and press from both sides tightly to adapt to the three-dimensional measuring machine and carry out multi-angle upset detection, improve the detection precision of part under the effect of automatic upset location frock clamp.

The invention has the following beneficial effects:

when the automatic overturning and positioning tool clamp is used for measuring a part to be measured, the part to be measured moves along the containing table and abuts against the positioning column, the push plate is driven by the hydraulic cylinder to move along the sliding groove, the inclined plate abuts against the bottom end of the ejector rod to provide a jacking force, a pressure is formed at the position of the pressure rod, the abutting plug on the abutting column is driven by the pressure rod to compress the part to be measured, the driven wheel is driven to rotate under the action of the motor driving the driving wheel to rotate, the worm drives the containing table to rotate together, the containing table is controlled to overturn along an angle through the engagement of the ratchet wheel and the pawl, and therefore the size of the part to be measured is measured by matching with a three-coordinate measuring machine.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic overall structure of a preferred embodiment of the present invention;

FIG. 2 is a side view overall schematic of the preferred embodiment of the present invention;

fig. 3 is a mechanical analysis diagram at the compression device of fig. 1.

Illustration of the drawings:

1. a containing device; 11. a containing table; 12. a support frame; 2. a positioning device; 21. a positioning column; 3. a pressing device; 31. a base; 32. a balancing weight; 33. a top rod; 34. a pressure lever; 35. mounting grooves; 36. an abutting portion; 361. a butting post; 362. an abutting plug; 37. a connecting frame; 38. a U-shaped clamping arm; 4. a pushing assembly; 41. a hydraulic cylinder; 42. pushing the plate; 43. a sloping plate; 44. a support rod; 45. a chute; 5. a turning device; 51. a worm gear; 52. a worm; 53. a drive assembly; 531. a driving wheel; 532. a driven wheel; 533. a motor; 534. a belt; 54. an anti-reversion assembly; 541. a ratchet wheel; 543. a pawl.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

Example 1

As shown in fig. 1, fig. 2, this embodiment discloses an automatic upset location frock clamp, including holding device 1, closing device 3 and turning device 5, use three-dimensional measuring machine to detect cylindrical engine part time measuring, through placing the part that awaits measuring on holding device 1, lock the part that awaits measuring through closing device 3, the part that awaits measuring after will locking overturns along support frame 12 under turning device 5's effect, drive through turning device 5 and hold a 11 rotations of platform and drive the part that awaits measuring and rotate and measure with the adaptation three-dimensional measuring machine.

Referring to fig. 1, 2 and 3, when detecting a part to be detected, a positioning device 2 is arranged on the holding table 11, the positioning device 2 includes two positioning columns 21, the positioning columns 21 are fixed on the holding table 11, and the part to be detected moves along the holding table 11 and is installed and positioned through the positioning columns 21. Closing device 3 includes base 31, ejector pin 33, depression bar 34 and balancing weight 32, holds and is provided with mounting groove 35 on the platform 11, and base 31 removes and fixes at the 35 tank bottoms of mounting groove along the 35 tank bottoms of mounting groove, and balancing weight 32 is fixed and is being held on the platform 11 and can dismantle the connection, and the size of a dimension according to the part that awaits measuring removes the position of base 31 and balancing weight 32 and measures with the part that awaits measuring that adapts to not unidimensional. One end and the balancing weight 32 of ejector pin 33 are fixed, the other end of ejector pin 33 is the V-arrangement setting, the upper end of base 31 is provided with link 37, link 37 is the opening setting, the draw-in groove has been seted up along the axial of ejector pin 33 to link 37, the V-arrangement end butt of ejector pin 33 is in the draw-in groove and the bottom of V-arrangement end rotates with link 37 to be connected, depression bar 34 is towards the one end fixedly connected with U-shaped card hand 38 of ejector pin 33, depression bar 34 joint is in the opening of U-shaped card hand 38 and fixed with U-shaped card hand 38, the other end joint of U-shaped card hand 38 is in the draw-in groove and U-shaped card hand 38 tip rotates with link 37 to be connected another section and ejector pin 33 and rotates to be connected. The pressing rod 34 is provided with an abutting part 36, and when the part to be detected is pressed, the pressing rod 34 drives the abutting part 36 to abut against the part to be detected to press the part to be detected.

Referring to fig. 1 and 2, the abutting portion 36 includes an abutting column 361 and an abutting plug 362, the abutting column 361 penetrates the pressing rod 34 and is fixed on the pressing rod 34, and the part to be measured is pressed by the abutting plug 362 at the bottom end of the abutting column 361. A rubber stopper is used as the abutment stopper 362.

Referring to fig. 1, 2 and 3, in order to press the pressing rod 34 against the to-be-measured part, the holding table 11 is provided with a pushing assembly 4, the pushing assembly 4 includes a hydraulic cylinder 41, a pushing plate 42, an inclined plate 43 and a support rod 44, the hydraulic cylinder 41 is fixed on the holding table 11, the output end of the hydraulic cylinder 41 is connected with the pushing plate 42, the support rod 44 is fixed on the pushing plate 42, the pushing plate 42 is driven by the hydraulic cylinder 41 to move to support the support rod 44 against the to-be-measured part, the inclined plates 43 are respectively fixed at two ends of the pushing plate 42, the inclined plate 43 is driven by the pushing plate 42 to be supported against the bottom end of the top rod 33 to lift the top rod 33, so that the top rod 33 is driven to apply a pressure to the pressing rod 34 to press the to-be-measured part against the holding table 11.

Referring to fig. 1 and 2, the turnover device 5 includes a worm wheel 51 and a worm 52, the worm wheel 51 is rotatably connected with a rotating shaft end of the holding table 11, the worm 52 is rotatably connected with the supporting frame 12, the worm wheel 51 is in meshing transmission with the worm 52, and the worm 52 is provided with a driving part through which i are driven to rotate. The driving part comprises a driving wheel 531, a driven wheel 532, a motor 533 and a belt 534, the driving wheel 531 is rotatably connected to the support frame 12, an output shaft of the motor 533 is fixed to a rotating shaft end of the driving wheel 531, the driven wheel 532 is sleeved on a rotating shaft of the worm 52 and fixed to the rotating shaft of the worm 52, the driving wheel 531 and the driven wheel 532 are sleeved through the belt 534 and are in tensioning arrangement, the driving wheel 531 is driven to rotate through external power work of the motor 533, the driven wheel 532 is driven to rotate under the transmission of the belt 534, and therefore the worm 52 is driven to rotate to drive the worm wheel 51 to rotate. The placing table 11 is further provided with an anti-reverse rotation assembly 54, the anti-reverse rotation assembly 54 comprises a ratchet 541 and a pawl 543, the ratchet 541 is fixed with the other rotating shaft end of the placing table 11, the pawl 543 is fixed on the supporting frame 12, and the placing table 11 is prevented from being reversed through the meshing and matching of the ratchet 541 and the pawl 543.

The working principle of the automatic turning positioning tool clamp comprises the following steps: when a part to be measured is measured, the part to be measured moves along the containing table 11 and abuts against the positioning column 21, the push plate 42 is driven by the hydraulic cylinder 41 to move along the sliding groove 45, the inclined plate 43 abuts against the bottom end of the ejector rod 33 to provide a jacking force, a pressure is formed at the position of the pressure rod 34, the pressure rod 34 drives the abutting plug 362 on the abutting column 361 to compress the part to be measured, the motor 533 drives the driving wheel 531 to rotate, the driven wheel 532 is driven to rotate under the action of the rotation of the driving wheel 531, the worm 52 drives the containing table 11 to rotate together, the ratchet 541 is meshed with the pawl 543, the containing table 11 is controlled to turn over along an angle, and therefore the three-coordinate measuring machine is matched to measure the size of the part to be measured.

This embodiment still discloses a three-coordinate measuring machine, and three-coordinate measuring machine is when measuring the part that awaits measuring, through with the part setting that awaits measuring on holding platform 11, compresses tightly the part that awaits measuring through closing device 3, drives under turning device 5's effect and holds platform 11 and rotate and order about the part that awaits measuring and rotate the detection in order to adapt to three-coordinate measuring machine.

Example 2

The present embodiment is different from embodiment 1 in that the driving portion includes a first sprocket and a second sprocket, and a motor 533 and a chain, the first sprocket is rotatably connected to the support frame 12, the second sprocket is rotatably connected to the rotating shaft end of the worm 52, the first sprocket and the second sprocket are connected through the chain, and the first sprocket is driven to rotate by the motor 533 so as to drive the second sprocket to rotate together, thereby driving the worm 52 to rotate.

Example 3

The difference of this embodiment and embodiment 1 lies in preventing reversing subassembly 54 and includes rotating the lid, and the tip that rotates the lid is provided with the draw-in groove, and the tip of holding platform 11 pivot is provided with the fixture block, and it is spacing to peg graft the cooperation through draw-in groove and fixture block, rotates the lid and is provided with the pin of perpendicular rotation lid along the circumferencial direction, is provided with a plurality of spacing grooves on support frame 12, and the piece is for rotating the lid block and preventing to hold platform 11 and reverse in the spacing inslot with the pin grafting in the pivot.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.