CN204881560U - Symmetry formula ball socket sphere diameter gas electrical measurement appearance - Google Patents
Symmetry formula ball socket sphere diameter gas electrical measurement appearance Download PDFInfo
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- CN204881560U CN204881560U CN201520267257.3U CN201520267257U CN204881560U CN 204881560 U CN204881560 U CN 204881560U CN 201520267257 U CN201520267257 U CN 201520267257U CN 204881560 U CN204881560 U CN 204881560U
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- 238000010894 electron beam technology Methods 0.000 claims description 35
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Abstract
The utility model discloses a symmetry formula ball socket sphere diameter gas electrical measurement appearance, including gas electricity electron post, the connecting rod of taking first gas passage, the spherical pneumatic measuring head of taking the second gas passage and a calibration group, the gas outlet end that pneumatic measuring head passes through connecting rod and the electric electron post of gas is connected, calibrating a group and including the little big calibration piece of calibrating the piece and taking second symmetry formula ball socket of taking first symmetrical formula ball socket, pneumatic measuring head sphere diameter and the symmetrical formula ball socket sphere diameter of quilt survey all are greater than first symmetrical formula ball socket sphere diameter and are lighter than second symmetry formula ball socket sphere diameter, are provided with a cutting platform in pneumatic measuring head both sides, the gaseous delivery outlet of second gas passage becomes upper and lower nozzle at the upper and lower spheroid shape of face of pneumatic measuring head respectively, the ball socket wall of the symmetrical formula ball socket of first, second all drops on the linear change within range in gas pressure and earial drainage clearance respectively to the earial drainage clearance of upper and lower nozzle. Its advantage is: with low costs, detect the precision and repeatability is high and to the strong adaptability of environment.
Description
Technical field
The utility model relates to spheroid internal measuring instrument, particularly relates to a kind of measuring instrument for measuring symmetrical expression ball-and-socket sphere diameter.
Background technology
Symmetrical expression ball-and-socket is body more common in mechanical field, is widely used in multiple exact instrument and equipment.The sphere diameter error of symmetrical expression ball-and-socket brings energy loss not only can to exact instrument and equipment, but also can affect the accuracy of exact instrument and equipment, and thus the detection of symmetrical expression ball-and-socket sphere diameter is most important.The surveying instrument being generally used for detecting symmetrical expression ball-and-socket sphere diameter is at present 3 micrometer inside calipers, 3 micrometer inside calipers are also called inside mictometer with three probes, it utilizes screw pair principle, make three measuring claws do radial displacement by rotation turriform Archimedean screw body or mobile centrum, make it contact with the ball-and-socket wall of tested symmetrical expression ball-and-socket.During measurement, first three measuring claws are gently placed in symmetrical expression ball-and-socket, then rotate the device for measuring force on 3 micrometer inside calipers, three measuring claws are radially stretched out respectively until be adjacent to ball-and-socket wall.Cause measuring speed to can not get improving in above-mentioned measuring process, thus measure efficiency lower; Simultaneously, because the shift position of measurement point and 3 micrometer inside calipers itself is not on a diameter line during measurement, do not meet abbe ' s principle, and the measuring claw being difficult to ensure to be adjacent to ball-and-socket wall does not slide along ball-and-socket wall, very difficult guarantee 3 micrometer inside calipers self do not produce and rock yet, these factors all can reduce measuring accuracy and the repeatable accuracy of 3 micrometer inside calipers greatly, and measuring accuracy is the highest can only be accurate to 4 μm, and repeatable accuracy is the highest also can only be accurate to 4 μm.Just need when the spherical diameter measurement accuracy requirement of tested ball-and-socket controls at 1 μm to use three coordinate measuring machine, but the cost of three coordinate measuring machine is very expensive, a three coordinate measuring machine price is about 500,000 ~ 5,000,000, and the on-line checkingi of three coordinate measuring machine due to self-characteristic and under not being suitable for common workshop condition or line frontier inspection are surveyed.
Utility model content
The required technical matters solved of the utility model is: provide a kind of low cost of manufacture, accuracy of detection and repeatable accuracy all higher and to surrounding environment adaptable symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument.
For solving the problem, the accurate measurement that the utility model adopts the known and pneumatic gauging technology of maturation to realize tested symmetrical expression ball-and-socket sphere diameter, pneumatic gauging technology is the technology of being reacted tested part size by the flow of measurement gas and the change of pressure, the physical principle of pneumatic gauging technology is as follows: the flow of gas and pressure all with the relation that is in proportion in the gap of gas earial drainage, simultaneously pressure and flow inversely proportional relation each other.Pressurized air after pressure regulation arrives the nozzle place of Pneumatic measuring head after the variable valve in air-gauge, if nozzle is facing to air, because nozzle exterior does not have blocking object, will the gas of maximum flow be had by nozzle, now between variable valve is with nozzle, there is a minimum pressure.When making a restraining mass from during as far as nearly close nozzle, the gas of ejection is owing to being stopped, flow will reduce thereupon gradually, pressure can raise gradually simultaneously, and after nozzle is blocked completely, flow is zero, and force value will rise to maximum, namely equal with the exit pressure levels of pressure regulator valve.Be earial drainage gap by the distance definition between restraining mass and nozzle, and the curve map in flow-earial drainage gap and pressure-earial drainage gap is made respectively according to above-mentioned change procedure, as can be seen from the figure, except the initial of pressure and flow and saturation stage, all straight line in the other parts of two segment of curve, namely flow and earial drainage gap linear within the scope of certain interval, pressure and gap also linear in certain earial drainage interstice coverage.The pneumoelectric electron beam belonging to air-gauge is exactly that a kind of linear change in gaseous tension and earial drainage gap that utilizes is to measure the common instrument of tested part size.
The technical solution adopted in the utility model is: described symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, comprise: pneumoelectric electron beam, connecting link, with the Pneumatic measuring head of tested symmetrical expression ball-and-socket Corresponding matching and the calibrating device group with Pneumatic measuring head Corresponding matching, Pneumatic measuring head is connected by the gas output end of connecting link with pneumoelectric electron beam, it is characterized in that: described calibrating device group comprises the little calibrating device of band first symmetrical expression ball-and-socket and the large calibrating device of band the second symmetrical expression ball-and-socket, tested symmetrical expression ball-and-socket sphere diameter is greater than the first symmetrical expression ball-and-socket sphere diameter and is less than the second symmetrical expression ball-and-socket sphere diameter, described Pneumatic measuring head is spheroid form, Pneumatic measuring head sphere diameter is greater than the first symmetrical expression ball-and-socket sphere diameter and is less than the second symmetrical expression ball-and-socket sphere diameter, be respectively arranged with first Cutting platform in Pneumatic measuring head both sides, two the first Cutting platforms can ensure that the process that Pneumatic measuring head is putting into the first symmetrical expression ball-and-socket does not collide with the first symmetrical expression ball-and-socket, the first gas passage through before and after being provided with in connecting link, the second gas passage of band two gas delivery ports is provided with in Pneumatic measuring head, first gas passage and the second gas passage form gas delivery channels, two gas delivery ports of the second gas passage lay respectively on the upper and lower surface of Pneumatic measuring head spheroid, thus forming top nozzle and lower nozzle respectively, the gas with certain pressure exported from the gas output end of pneumoelectric electron beam sprays from upper and lower nozzle respectively after gas delivery channels, when Pneumatic measuring head is placed in symmetrical expression ball-and-socket, gas with certain pressure outwards sprays earial drainage from the earial drainage gap between top nozzle and the upper ball-and-socket wall of symmetrical expression ball-and-socket and the earial drainage gap between lower nozzle and the lower ball-and-socket wall of symmetrical expression ball-and-socket respectively, and on, lower nozzle respectively to the first symmetrical expression ball-and-socket upper, earial drainage gap between lower ball-and-socket wall is all dropped in the range of linearity in gaseous tension and earial drainage gap, on, lower nozzle respectively to the second symmetrical expression ball-and-socket upper, earial drainage gap between lower ball-and-socket wall is also all dropped in the range of linearity in gaseous tension and earial drainage gap.
Further, aforesaid symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, wherein, described second gas passage is made up of the outlet passageway of inlet channel and up/down perforation, outlet passageway and inlet channel run through the passage forming T-shape mutually, outlet passageway is positioned on a certain diameter line of Pneumatic measuring head, and the outlet of the upper/lower terminal of outlet passageway forms top nozzle and lower nozzle respectively on the upper and lower surface of Pneumatic measuring head spheroid.
Further, aforesaid symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, wherein, described connecting link is made up of handle and flexible pipe, the 3rd gas passage through before and after being provided with in handle, handle front end can be tightly connected with Pneumatic measuring head, and handle rear end is connected with flexible pipe forward end seal, flexible pipe rear end can be tightly connected with the gas output end of pneumoelectric electron beam, and flexible pipe endoporus and the 3rd gas passage form the first complete gas passage.
Further, aforesaid symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, wherein, handle leading portion is provided with external thread section, the gas entrance place of the second gas passage is provided with the internal thread segment matched with external thread section, and handle is tightly connected by the internal thread segment on external thread section and Pneumatic measuring head.
Further, aforesaid symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, wherein, be provided with the holding tank holding O-ring seal at the gas entrance place of the second gas passage, O-ring seal is placed in holding tank, and handle front end is tightly connected by O-ring seal and Pneumatic measuring head.
Further, aforesaid symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, wherein, is provided with the web member of be tightly connected handle and flexible pipe between handle and flexible pipe.
Further, aforesaid symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, wherein, described web member front end is provided with embedded block, and be provided with the embedded groove holding embedded block at handle rear end, embedded block can seal and be embedded in embedded groove; Be provided with the taper embedded block of cone shape in web member rear end, the diameter of taper embedded block reduces from front to back gradually, is provided with the taper embedded groove matched with taper embedded block in flexible pipe front end, and taper embedded block can seal and be embedded in taper embedded groove; Through hole through before and after being provided with in web member, when handle is tightly connected by web member and flexible pipe, the 3rd gas passage is connected with flexible pipe endoporus by through hole.
Further, aforesaid symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, wherein, is vertically cut with the second Cutting platform in Pneumatic measuring head front end.
Further, aforesaid symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, wherein, minimum clearance between the ball-and-socket wall of Pneumatic measuring head spherome surface and the first symmetrical expression ball-and-socket controls within the scope of 5 μm-10 μm, and the maximal clearance between the ball-and-socket wall of Pneumatic measuring head spherome surface and the second symmetrical expression ball-and-socket controls within the scope of 80 μm-100 μm.
The beneficial effects of the utility model are: the symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument described in (1) can be used for on-line checkingi under common workshop condition or line frontier inspection is surveyed, and less demanding to surrounding environment, applicability is strong; (2) the calibrating device group of the Pneumatic measuring head and corresponding coupling that in use only need change different sphere diameter can detect the symmetrical expression ball-and-socket of multiple sphere diameter, and can measure the tested symmetrical expression ball-and-socket of same specification fast after the calibration of pneumoelectric electron beam, detection efficiency is high, easy to operate; (3) can greatly reduce costs while meeting compared with high measurement accuracy and repeatable accuracy requirement, its measuring accuracy can be accurate to 1 μm, and repeatable accuracy can be accurate to 1 μm, and manufacturing cost is only 0.4% ~ 4% of three coordinate measuring machine manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument described in the utility model.
Fig. 2 is the fit structure schematic diagram of Pneumatic measuring head and tested symmetrical expression ball-and-socket in Fig. 1.
Fig. 3 is the fit structure schematic diagram of handle, flexible pipe, Pneumatic measuring head and tested symmetrical expression ball-and-socket.
Fig. 4 is the decomposition texture schematic diagram of handle, web member and flexible pipe.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, technical scheme described in the utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument described in the utility model, comprise: pneumoelectric electron beam 1, connecting link 2, with the Pneumatic measuring head 3 of tested symmetrical expression ball-and-socket Corresponding matching of workpiece 7 and the calibrating device group with Pneumatic measuring head 3 Corresponding matching, Pneumatic measuring head 3 is connected with the gas output end 11 of pneumoelectric electron beam 1 by connecting link 2.Described calibrating device group comprises the little calibrating device 61 of band first symmetrical expression ball-and-socket 610 and the large calibrating device 62 of band the second symmetrical expression ball-and-socket 620, and the sphere diameter of tested symmetrical expression ball-and-socket is greater than the sphere diameter of the first symmetrical expression ball-and-socket 610 and is less than the sphere diameter of the second symmetrical expression ball-and-socket 620, described Pneumatic measuring head 3 is spheroid form, the sphere diameter of Pneumatic measuring head 3 is greater than the sphere diameter of the first symmetrical expression ball-and-socket 610 and is less than the sphere diameter of the second symmetrical expression ball-and-socket 620, first Cutting platform 31 is respectively arranged with in Pneumatic measuring head 3 both sides, in actual production, two the first Cutting platforms 31 can be symmetricly set on the both sides of Pneumatic measuring head 3, two the first Cutting platforms 31 can ensure that the process that Pneumatic measuring head 3 is putting into the first symmetrical expression ball-and-socket 610 does not collide with the first symmetrical expression ball-and-socket 610, thus avoid the ball-and-socket wall of appearance first symmetrical expression ball-and-socket or the spherome surface of Pneumatic measuring head 3 to be scratched phenomenon because of collision, so just can ensure in process Pneumatic measuring head 3 being put into tested symmetrical expression ball-and-socket, the ball-and-socket wall of tested symmetrical expression ball-and-socket or the spherome surface of Pneumatic measuring head 3 also there will not be and are scratched phenomenon because of collision, the first gas passage through before and after being provided with in connecting link 2, the second gas passage of band two gas delivery ports is provided with in Pneumatic measuring head 3, first gas passage and the second gas passage form gas delivery channels, two gas delivery ports of the second gas passage lay respectively on the upper and lower surface of Pneumatic measuring head 3 spheroid, thus forming top nozzle 331 and lower nozzle 332 respectively, the gas with certain pressure exported from the gas output end 11 of pneumoelectric electron beam 1 sprays from top nozzle 331 and lower nozzle 332 respectively after gas delivery channels, when Pneumatic measuring head 3 is placed in symmetrical expression ball-and-socket, gas with certain pressure outwards sprays earial drainage from the earial drainage gap between top nozzle 331 and the upper ball-and-socket wall of symmetrical expression ball-and-socket and the earial drainage gap between lower nozzle 332 and the lower ball-and-socket wall of symmetrical expression ball-and-socket respectively, and on, lower nozzle 331 and 332 respectively to the first symmetrical expression ball-and-socket upper, earial drainage gap between lower ball-and-socket wall is all dropped in the range of linearity in gaseous tension and earial drainage gap, on, lower nozzle 331 and 332 respectively to the second symmetrical expression ball-and-socket upper, earial drainage gap between lower ball-and-socket wall is also all dropped in the range of linearity in gaseous tension and earial drainage gap.In the present embodiment Pneumatic measuring head 3 spherome surface and the first symmetrical expression ball-and-socket ball-and-socket wall between minimum clearance control within the scope of 5 μm-10 μm, the maximal clearance between the ball-and-socket wall of Pneumatic measuring head 3 spherome surface and the second symmetrical expression ball-and-socket controls within the scope of 80 μm-100 μm.As shown in Figure 3, in the present embodiment, the distance being vertically cut with the second Cutting platform 34, second Cutting platform 34 to Pneumatic measuring head 3 center in the front end of Pneumatic measuring head 3 ensure Pneumatic measuring head 3 freely can rotate in the first symmetrical expression ball-and-socket 610 in corresponding coupling and can not grazing to any position of little calibrating device 61.Pneumatic measuring head 3 is put into the first symmetrical expression ball-and-socket 610 when measuring, the unsettled middle at the first symmetrical expression ball-and-socket 610 of Pneumatic measuring head 3 can be made from the gas with certain pressure of top nozzle 331 and the ejection of lower nozzle 332, be contactless state with the ball-and-socket wall of the first symmetrical expression ball-and-socket, maintaining with ball-and-socket wall when the setting of the second Cutting platform 34 can ensure that Pneumatic measuring head 3 freely rotates in the first symmetrical expression ball-and-socket 610 is contactless state, like this, the ball-and-socket wall of appearance first symmetrical expression ball-and-socket or Pneumatic measuring head 3 spherome surface just can be avoided during measurement to be scratched phenomenon because of collision, thus ensure that the ball-and-socket wall of tested symmetrical expression ball-and-socket or the spherome surface of Pneumatic measuring head 3 also there will not be and be scratched phenomenon because of collision, protect the inside surface of tested symmetrical expression ball-and-socket, further increase measuring accuracy and repeatable accuracy simultaneously.
As shown in Figure 3, in the present embodiment, described second gas passage is made up of the outlet passageway 33 of inlet channel 32 and up/down perforation, outlet passageway 33 and inlet channel 32 run through the passage forming T-shape mutually, outlet passageway 33 is positioned on a certain diameter line of Pneumatic measuring head 3, and outlet passageway 33 is upper, the outlet of lower two ends is respectively on the spheroid of Pneumatic measuring head 3, lower surface is formed top nozzle 331 and lower nozzle 332, the gas of the band certain pressure exported from the gas output end 11 of pneumoelectric electron beam 1 sprays from top nozzle 331 and lower nozzle 332 respectively after gas delivery channels.Described connecting link 2 is made up of handle 4 and flexible pipe 5, the 3rd gas passage 41 through before and after being provided with in handle 4, handle 4 front end can be tightly connected with Pneumatic measuring head 3, handle 4 rear end is connected with flexible pipe 5 forward end seal, flexible pipe 5 rear end can be tightly connected with the gas output end 11 of pneumoelectric electron beam 1, and flexible pipe endoporus and the 3rd gas passage 41 form the first complete gas passage.Handle 4 leading portion is provided with external thread section, the gas entrance place of inlet channel 32 is provided with the internal thread segment matched with external thread section, handle 4 is tightly connected by the internal thread segment on external thread section and Pneumatic measuring head 3.In the present embodiment, be also provided with at the gas entrance place of inlet channel 32 and hold the holding tank of O-ring seal 9, O-ring seal 9 is placed in holding tank, and handle 4 front end to be tightly connected with Pneumatic measuring head by O-ring seal 9 and being threaded.As shown in Figure 3 and Figure 4, in the present embodiment, between handle 4 and flexible pipe 5, be provided with the web member 8 of be tightly connected handle 4 and flexible pipe 5.Described web member 8 front end is provided with embedded block 82, and be provided with the embedded groove 42 holding embedded block 82 in handle 4 rear end, embedded block 82 can seal and be embedded in embedded groove 42; The taper embedded block 83 of cone shape is provided with in web member 8 rear end, the diameter of taper embedded block 83 reduces from front to back gradually, be provided with the taper embedded groove 51 matched with taper embedded block 83 in flexible pipe 5 front end, taper embedded block 83 can seal and be embedded in taper embedded groove 51; Through hole 81 through before and after being provided with in web member 8, when handle 4 is tightly connected by web member 8 and flexible pipe 5, the 3rd gas passage 41 is connected with flexible pipe endoporus by through hole 81.
Use during pneumoelectric measuring instrument described in the utility model and pneumoelectric electron beam need be connected with source of the gas, pneumoelectric electron beam 1 is first calibrated before measurement, the concrete steps of calibration are: rotate Pneumatic measuring head 3 and two the first Cutting platforms 31 are in respectively, upper/lower positions, then Pneumatic measuring head 3 is put into the first symmetrical expression ball-and-socket 610 of little calibrating device 61, then rotating Pneumatic measuring head 3 makes its top nozzle 331 and lower nozzle 332 relative with the upper ball-and-socket wall of the first symmetrical expression ball-and-socket 610 and lower ball-and-socket wall respectively, gas with certain pressure outwards sprays from top nozzle 331 and lower nozzle 332 respectively after the gas output end 11 and gas delivery channels of pneumoelectric electron beam 1, the gas of the band certain pressure sprayed from top nozzle 331 is from the outside earial drainage in earial drainage gap between the upper ball-and-socket wall of the upper sphere of Pneumatic measuring head 3 surface and the first symmetrical expression ball-and-socket 610, the gas of the band certain pressure sprayed from lower nozzle 332 is from the outside earial drainage in earial drainage gap between the lower sphere surface of Pneumatic measuring head 3 and the lower ball-and-socket wall of the first symmetrical expression ball-and-socket 610, Pneumatic measuring head 3 at the effect low suspension of gaseous tension in the centre of the first symmetrical expression ball-and-socket 610, now pneumoelectric electron beam 1 shows numerical value a.Then rotating Pneumatic measuring head 3 makes two the first Cutting platforms 31 again be in respectively, upper/lower positions, then Pneumatic measuring head 3 is taken out from the first symmetrical expression ball-and-socket 610, then in the same manner Pneumatic measuring head 3 is put into the second symmetrical expression ball-and-socket 620 to measure, now pneumoelectric electron beam 1 shows numerical value b, according to numerical value a, numerical value b, the nominal sphere diameter of the first symmetrical expression ball-and-socket 610 and the nominal sphere diameter of the second symmetrical expression ball-and-socket 620 can obtain the enlargement ratio of pneumoelectric electron beam 1, the structure of pneumoelectric electron beam 1 and measuring principle belong to existing technology, can direct commercially available pneumoelectric electron beam 1, and the known technology in pneumoelectric electron beam field is also belonged to the calculating of the enlargement ratio of this pneumoelectric electron beam 1, all can describe in detail in the incidental instructions of general purchase pneumoelectric electron beam 1, just repeat no more at this.After the magnification calibration of pneumoelectric electron beam 1, Pneumatic measuring head 3 is put into again the first symmetrical expression ball-and-socket 610 and measure, and now the numerical value of display on pneumoelectric electron beam 1 is calibrated to the nominal sphere diameter of the first symmetrical expression ball-and-socket 610; Then the second symmetrical expression ball-and-socket 620 is put into again after being taken out in the first symmetrical expression ball-and-socket 610 by Pneumatic measuring head 3, now on pneumoelectric electron beam 1, the numerical value of display is the detection sphere diameter of the second symmetrical expression ball-and-socket 620, it is all allow that the numerical value of the detection sphere diameter that general pneumoelectric electron beam 1 now shows differs within the scope of 0.5 μm with the nominal sphere diameter of the second symmetrical expression ball-and-socket 620, otherwise just needs to recalibrate pneumoelectric electron beam 1.Pneumoelectric electron beam 1 can measure tested symmetrical expression ball-and-socket after calibrating.When tested symmetrical expression ball-and-socket with a collection of specifications and models is measured, Pneumatic measuring head 3 is put into one of them tested symmetrical expression ball-and-socket, on pneumoelectric electron beam 1, the numerical value of display is the true sphere diameter of this tested symmetrical expression ball-and-socket, then next tested symmetrical expression ball-and-socket is put into after being taken out in this tested symmetrical expression ball-and-socket by Pneumatic measuring head 3, can measure the tested symmetrical expression ball-and-socket of the next one, the speed of a general measure symmetrical expression ball-and-socket can control within 2 seconds, detection speed quickly, substantially increase detection efficiency, can be used for using as measuring instrument in production in enormous quantities.In actual production, if desired the tested symmetrical expression ball-and-socket sphere diameter of multiple batches of different specification size is detected, as long as the then Pneumatic measuring head 3 of multiple sphere diameter that mates respectively with each specification of configuration and distinguish little calibrating device 61 and the large calibrating device 62 of Corresponding matching with each Pneumatic measuring head 3.Like this when measuring the tested symmetrical expression ball-and-socket of another batch of specifications and models, only need change the Pneumatic measuring head 3 of Corresponding matching, little calibrating device 61 and large calibrating device 62, and calibration gas electricity electron beam 1 just can carry out Quick Measurement to this batch of tested symmetrical expression ball-and-socket again.
The utility model has the advantages that: the symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument described in (1) can be used for on-line checkingi under common workshop condition or line frontier inspection is surveyed, and less demanding to surrounding environment, applicability is strong; (2) the calibrating device group of the Pneumatic measuring head 3 and corresponding coupling that in use only need change different sphere diameter can detect the symmetrical expression ball-and-socket of multiple sphere diameter, and can measure the tested symmetrical expression ball-and-socket of same specification fast after the calibration of pneumoelectric electron beam, detection efficiency is high, easy to operate; (3) can greatly reduce costs while meeting compared with high measurement accuracy and repeatable accuracy requirement, its measuring accuracy can be accurate to 1 μm, and repeatable accuracy can be accurate to 1 μm, and manufacturing cost is only 0.4% ~ 4% of three coordinate measuring machine manufacturing cost.
Claims (9)
1. symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument, comprise: pneumoelectric electron beam, connecting link, with the Pneumatic measuring head of tested symmetrical expression ball-and-socket Corresponding matching and the calibrating device group with Pneumatic measuring head Corresponding matching, Pneumatic measuring head is connected by the gas output end of connecting link with pneumoelectric electron beam, it is characterized in that: described calibrating device group comprises the little calibrating device of band first symmetrical expression ball-and-socket and the large calibrating device of band the second symmetrical expression ball-and-socket, and tested symmetrical expression ball-and-socket sphere diameter is greater than the first symmetrical expression ball-and-socket sphere diameter and is less than the second symmetrical expression ball-and-socket sphere diameter, described Pneumatic measuring head is spheroid form, Pneumatic measuring head sphere diameter is greater than the first symmetrical expression ball-and-socket sphere diameter and is less than the second symmetrical expression ball-and-socket sphere diameter, be respectively arranged with first Cutting platform in Pneumatic measuring head both sides, two the first Cutting platforms can ensure that the process that Pneumatic measuring head is putting into the first symmetrical expression ball-and-socket does not collide with the first symmetrical expression ball-and-socket, the first gas passage through before and after being provided with in connecting link, the second gas passage of band two gas delivery ports is provided with in Pneumatic measuring head, first gas passage and the second gas passage form gas delivery channels, two gas delivery ports of the second gas passage lay respectively on the upper and lower surface of Pneumatic measuring head spheroid, thus forming top nozzle and lower nozzle respectively, the gas with certain pressure exported from the gas output end of pneumoelectric electron beam sprays from upper and lower nozzle respectively after gas delivery channels, when Pneumatic measuring head is placed in symmetrical expression ball-and-socket, gas with certain pressure outwards sprays earial drainage from the earial drainage gap between top nozzle and the upper ball-and-socket wall of symmetrical expression ball-and-socket and the earial drainage gap between lower nozzle and the lower ball-and-socket wall of symmetrical expression ball-and-socket respectively, and on, lower nozzle respectively to the first symmetrical expression ball-and-socket upper, earial drainage gap between lower ball-and-socket wall is all dropped in the range of linearity in gaseous tension and earial drainage gap, on, lower nozzle respectively to the second symmetrical expression ball-and-socket upper, earial drainage gap between lower ball-and-socket wall is also all dropped in the range of linearity in gaseous tension and earial drainage gap.
2. according to symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument according to claim 1, it is characterized in that: described second gas passage is made up of the outlet passageway of inlet channel and up/down perforation, outlet passageway and inlet channel run through the passage forming T-shape mutually, outlet passageway is positioned on a certain diameter line of Pneumatic measuring head, and the outlet of the upper/lower terminal of outlet passageway forms top nozzle and lower nozzle respectively on the upper and lower surface of Pneumatic measuring head spheroid.
3. according to symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument according to claim 1, it is characterized in that: described connecting link is made up of handle and flexible pipe, the 3rd gas passage through before and after being provided with in handle, handle front end can be tightly connected with Pneumatic measuring head, handle rear end is connected with flexible pipe forward end seal, flexible pipe rear end can be tightly connected with the gas output end of pneumoelectric electron beam, and flexible pipe endoporus and the 3rd gas passage form the first complete gas passage.
4. according to symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument according to claim 3, it is characterized in that: handle leading portion is provided with external thread section, the gas entrance place of the second gas passage is provided with the internal thread segment matched with external thread section, and handle is tightly connected by the internal thread segment on external thread section and Pneumatic measuring head.
5. according to the symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument described in claim 3 or 4, it is characterized in that: be provided with the holding tank holding O-ring seal at the gas entrance place of the second gas passage, O-ring seal is placed in holding tank, and handle front end is tightly connected by O-ring seal and Pneumatic measuring head.
6., according to symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument according to claim 3, it is characterized in that: the web member being provided be tightly connected handle and flexible pipe between handle and flexible pipe.
7. according to symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument according to claim 6, it is characterized in that: described web member front end is provided with embedded block, be provided with the embedded groove holding embedded block at handle rear end, embedded block can seal and be embedded in embedded groove; Be provided with the taper embedded block of cone shape in web member rear end, the diameter of taper embedded block reduces from front to back gradually, is provided with the taper embedded groove matched with taper embedded block in flexible pipe front end, and taper embedded block can seal and be embedded in taper embedded groove; Through hole through before and after being provided with in web member, when handle is tightly connected by web member and flexible pipe, the 3rd gas passage is connected with flexible pipe endoporus by through hole.
8., according to symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument according to claim 1, it is characterized in that: be vertically cut with the second Cutting platform in Pneumatic measuring head front end.
9. according to the symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument described in claim 1 or 8, it is characterized in that: the minimum clearance between the ball-and-socket wall of Pneumatic measuring head spherome surface and the first symmetrical expression ball-and-socket controls within the scope of 5 μm-10 μm, the maximal clearance between the ball-and-socket wall of Pneumatic measuring head spherome surface and the second symmetrical expression ball-and-socket controls within the scope of 80 μm-100 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520267257.3U CN204881560U (en) | 2015-04-29 | 2015-04-29 | Symmetry formula ball socket sphere diameter gas electrical measurement appearance |
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| CN201520267257.3U CN204881560U (en) | 2015-04-29 | 2015-04-29 | Symmetry formula ball socket sphere diameter gas electrical measurement appearance |
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| CN204881560U true CN204881560U (en) | 2015-12-16 |
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| CN201520267257.3U Withdrawn - After Issue CN204881560U (en) | 2015-04-29 | 2015-04-29 | Symmetry formula ball socket sphere diameter gas electrical measurement appearance |
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| CN (1) | CN204881560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848810A (en) * | 2015-04-29 | 2015-08-19 | 张家港海太精密量仪科技有限公司 | Ball diameter electro-pneumatic measuring instrument for symmetric ball socket |
-
2015
- 2015-04-29 CN CN201520267257.3U patent/CN204881560U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848810A (en) * | 2015-04-29 | 2015-08-19 | 张家港海太精密量仪科技有限公司 | Ball diameter electro-pneumatic measuring instrument for symmetric ball socket |
| CN104848810B (en) * | 2015-04-29 | 2017-08-15 | 张家港海太精密量仪科技有限公司 | Symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20170815 |
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| AV01 | Patent right actively abandoned |