CN202470987U - Device for detecting perpendicularity between inner step end face and large hole axis of workpiece with step hole - Google Patents

Abstract

The utility model discloses a device for detecting the perpendicularity between an inner step end face and a large hole axis of a workpiece with a step hole, which relates to a special tool for detecting the accuracy of machining parts. The device disclosed by the utility model is suitable for the large-aperture workpiece and capable of obtaining detection data quickly and conveniently and has extremely high reference conditions. The device comprises a detection gauge, a center rod, a rotary seat, a gauge connecting mechanism, a base, an eccentric wheel and a compression bar. The device needs to finish a task of detecting the perpendicularity between the circular end face of an inner step and a large hole on the workpiece; and the circular end face of the inner step and the surface of the large hole respectively serve as a detection reference surface and a detected surface. The bottom surface of a base plate at the lower part of the base in the detection device is taken as a positioning reference surface which is in surface contact with the detection reference surface. The detection device is especially suitable for detecting the precision of inner steps of large-sized and high-accuracy parts.

Description

Interior step end face and macropore axle center testing apparatus for verticality with step hole workpiece

Technical field

The utility model relates to a kind of special detection apparatus of machined part precision, relates in particular to interior step end face and macropore axle center testing apparatus for verticality with step hole workpiece.

Background technology

NC turret punch machine is because of its punching press frequency is high, the high favor that receives users of automaticity.Along with the raising of domestic numerical control sheet material process equipment manufacturer technical merit, the production domesticization scale unprecedentedly promotes, at present not only at home market occupy an leading position, the recoverable amount in the international market also rises significantly.But customers' responsiveness is arranged at present, and the domestic numerical control rotating tower punch is less than the equipment of import.To this, the applicant's R&D team combines, and when recognizing achievement, also recognizes the production run bigger rising space still.Through analyzing, we find: with advanced foreign technology certain gap is arranged really in the requirement aspect the parts precision.Such as big specification bearing holder (housing, cover), for a kind of like this product, generally adopt car, boring machine to process with stepped hole, moulding in time processing according to be accustomed in the past, can think that its precision adheres to specification.But because factors such as tool wear, replacing cutter, stress deformation, operating personnel's technology, the verticality in step end face and macropore axle center is lost accurate in can making.Therefore to the detection of this precision, and then grasp the firsthand data, just become and overcome precision and lose accurate top priority.

The patent documentation of the 2011.1.5. of State Intellectual Property Office disclosed " measurement mechanism of narrow step surface verticality and measuring method in CN101936701A, the deep and long hole "; A kind of step surface testing apparatus for verticality that is applicable to deep and long hole is disclosed; Adopt sounding rod, contact block, abutment sleeve and nut to constitute pick-up unit, utilize the outside surface contact datum hole of abutment sleeve, the semi-cylindrical of contact block contacts with narrow step surface; Rotate a circle, get parms from the sounding rod top end then.But the measurement of step surface verticality in this kind mode is difficult to adapt in the large aperture workpiece.

The utility model content

The utility model provides a kind of large aperture workpiece that is applicable to above problem, can fast, conveniently draw the detection data, and have the interior step end face with step hole workpiece and the macropore axle center testing apparatus for verticality of high base condition.

The technical scheme of the utility model is: comprise detection table tool, also comprise center-pole, revolve seat, show tool bindiny mechanism, base, eccentric wheel and depression bar;

Said eccentric wheel comprises wheel disc and the tubular shaft that is connected as a single entity; At least three eccentric blades of equal portion on the said wheel disc circumference; Outside surface top, said tubular shaft upper end offers a pair of axial cutting plane that is parallel to each other, and plays the rotating eccentric wheel effect;

Said base comprises chassis and the hollow sleeve that is connected as a single entity, and offers on the bottom surface on said chassis to be used for ccontaining said eccentric groove, makes said eccentric wheel have revolution space; Offer at least three chutes that are used for ccontaining said depression bar on the card on said chassis; The outer circumference surface on said chassis is slightly less than the internal diameter of said macropore; The outer surface of upper of said hollow sleeve is provided with and is used to articulate the said face of cylinder of revolving seat, and the endoporus of tubular shaft articulates on the endoporus of said hollow sleeve and the said eccentric wheel;

Said depression bar is connected through Pressure-bar spring in the chute of said base, and the external end head of said depression bar is used to hold out against the internal circular surfaces of said macropore, and the inner termination of said depression bar is used to contact said eccentric blade;

The said seat that revolves comprises pivoted housing and spiral arm, and said pivoted housing has mesopore, and said mesopore articulates the face of cylinder of said hollow sleeve outer surface of upper; Said spiral arm is fixedly connected on the said pivoted housing lateral surface;

The top of said center-pole is provided with thread segment, is connected with nut on the last thread segment;

Said detection table tool is connected on the said pivoted arm that revolves seat through table tool bindiny mechanism.

Also comprise gland, said gland links to each other with the bottom surface on said chassis from the bottom, is used to support said eccentric wheel.

Also comprise gland, the bottom of said center-pole is provided with step circle, and said gland is located between said step circle and the said chassis, is used to support said eccentric wheel.

Also comprise gland, said gland center is provided with threaded hole; Said center-pole lower end is provided with screw thread, said backing plate be located at said in step opposite side, link to each other with the screw thread of said center-pole lower end through said threaded hole.

The pivoted arm that revolves seat comprises side plate, cross tube, sheer pole and holds out against spring that the said spring housing that holds out against is located on the sheer pole;

Said table tool syndeton comprises pressure head and Connection Block; Said pressure head middle part is connected the external end head of said cross tube through hinge; The bottom of said pressure head is contact outside the side of said big internal surface of hole is provided with, and the top of said pressure head is provided with interior contact towards the side in said macropore axle center; Said Connection Block is fixedly connected on the end face of said side plate or cross tube, and said detection table tool is detachably connected on the said Connection Block, contact in the contact of the detection head of said table tool is said.

The task of the required completion of the utility model is to detect the detection of verticality between workpiece upper inner platform rank nose circle face and the macropore, and interior step circle end face and macropore hole face are respectively detection reference face and to be detected.The bottom surface that utilizes base bottom chassis in the pick-up unit contacts with detection reference face face as positioning reference plane, has at first guaranteed the parallel relation between base axle center and the macropore axle center; Then, utilize eccentric wheel to drive 3 depression bars (eccentric wheel and base concentric), make the base axle center concentric with the macropore axle center.So just established the benchmark that detects.Subsequently, utilize the rotation of revolving seat, utilize lever-type testing agency to obtain the data of macropore periphery, finally obtain the verticality data between positioning reference plane and the detection reference face.The utility model is particularly suitable for the detection to step precision in large-scale, the high precision zero parts.

Description of drawings

Fig. 1 is the structural representation of the utility model,

Fig. 2 is the vertical view of Fig. 1,

Fig. 3 is an A-A cut-open view among Fig. 2,

Fig. 4 be the utility model axially disassemble synoptic diagram,

Fig. 5 is the structural representation of base in the utility model,

Fig. 6 is the vertical view of Fig. 5,

Fig. 7 is an eccentric structural representation in the utility model,

Fig. 8 is the vertical view of Fig. 7,

Fig. 9 is an eccentric schematic perspective view in the utility model;

1 is workpiece among the figure, and 1a is interior step circle end face, and 1b is a macropore hole face, the 2nd, and backing plate, the 3rd, depression bar, the 4th, gland; The 5th, Pressure-bar spring, the 6th, eccentric wheel, the 61st, axial cutting plane, the 62nd, tubular shaft cylindrical, the 63rd, circle in the tubular shaft, the 7th, base; The 71st, groove, the 72nd, chute, the 73rd, the face of cylinder, the 8th, revolve seat, the 9th, the table tool; The 10th, pressure head, the 11st, hold out against spring, the 12nd, center-pole, the 121st, step circle, the 13rd, nut.

Embodiment

The utility model is shown in Fig. 1-9: comprise detection table tool 9, also comprise center-pole 12, revolve seat 8, show tool bindiny mechanism, base 7, eccentric wheel 6 and depression bar 3;

Said eccentric wheel 6 comprises wheel disc and the tubular shaft that is connected as a single entity; At least three eccentric blades of equal portion on the said wheel disc circumference; Outside surface top, said tubular shaft upper end offers a pair of axial cutting plane 61 that is parallel to each other, and plays rotating eccentric wheel 6 effects; Tubular shaft cylindrical 62 is used for cooperating with the interior circle of the hollow sleeve of base 7, and circle 63 cooperates with the shaft external cylindrical surface activity of said center-pole 12 in the tubular shaft, turns; Shown in Fig. 7-9.

Said base 7 comprises chassis and the hollow sleeve that is connected as a single entity, and offers the groove 71 that is used for ccontaining said eccentric wheel 6 on the bottom surface on said chassis, makes said eccentric 6 to take turns and have revolution space; Offer at least three chutes 72 that are used for ccontaining said depression bar on the card on said chassis; The outer circumference surface on said chassis is slightly less than the internal diameter of said macropore; The outer surface of upper of said hollow sleeve is provided with and is used to articulate the said face of cylinder 73 of revolving seat 8, and the endoporus of tubular shaft articulates on the endoporus of said hollow sleeve and the said eccentric wheel 6; The diameter on the hollow sleeve face of cylinder 73 is greater than the external diameter of nut 13 on the base, makes the seat 8 that revolves that is rotatably assorted with the face of cylinder 73 to free in and out after fastening;

Said depression bar 3 is connected in the chute 72 of said base 7 through Pressure-bar spring 5, and the external end head of said depression bar 3 is used to hold out against the internal circular surfaces of said macropore, and the inner termination of said depression bar 3 is used to contact said eccentric blade;

The said seat 8 that revolves comprises pivoted housing and spiral arm, and said pivoted housing has mesopore, and said mesopore articulates the face of cylinder of said hollow sleeve outer surface of upper; Said spiral arm is fixedly connected on the said pivoted housing lateral surface;

The top of said center-pole 12 is provided with thread segment, is connected with nut 13 on the last thread segment;

Said detection table tool 9 is connected on the said pivoted arm that revolves seat 8 through table tool bindiny mechanism.

Also comprise gland 4, said gland 4 links to each other with the bottom surface on said chassis from the bottom, is used to support said eccentric wheel 6.

Also comprise gland 4, the bottom of said center-pole 12 is provided with step circle 121, and said gland 4 is located between said step circle 121 and the said chassis, is used to support said eccentric wheel 6.

Also comprise gland 4, said gland 4 centers are provided with threaded hole; Said center-pole 12 lower ends are provided with screw thread, said backing plate 2 be located at said in step opposite side, link to each other with the screw thread of said center-pole 12 lower ends through said threaded hole.

The pivoted arm that revolves seat 8 comprises side plate, cross tube, sheer pole and holds out against spring 11 that the said spring 11 that holds out against is set on the sheer pole;

Said table tool syndeton comprises pressure head 10 and Connection Block; Said pressure head 10 middle parts are connected the external end head of said cross tube through hinge; The bottom of said pressure head 10 is contact outside the side of said big internal surface of hole is provided with, and the top of said pressure head 10 is provided with interior contact towards the side in said macropore axle center; Said Connection Block is fixedly connected on the end face of said side plate or cross tube, and said detection table tool 9 is detachably connected on the said Connection Block, contact in the contact of the detection head of said table tool 9 is said.What that is to say pressure head 10 employings is that lever principle is given table tool 9 with to be detected data " transmission ".For the structure at this place, have multiple version in the prior art, do not give unnecessary details one by one at this.

The detection method of the utility model is carried out according to the following steps,

1), said gland 4, eccentric wheel 6, base 7 are socketed on the said center-pole 12 successively, then with the bottom surface of said base 7 fit tightly said in step end face (promptly interior step circle end face 1a is the detection reference face); When processing base 7, the bottom surface on chassis need have the precision as the frock reference field;

2), adopt spanner to pull a pair of axial cutting plane 61 that is parallel to each other on the tubular shaft top of eccentric wheel 6; Make eccentric wheel 6 rotate with respect to base 7; And then utilize eccentric wheel 6 to drive said depression bar 3 to said big internal surface of hole (being macropore hole face 1b) motion, until holding out against; Realized under the situation of step circle end face 1a in undersurface of bottom disc is fitted that concentric base 7, eccentric wheel 6 and center-pole 12 keep coaxial with the macropore axle center;

3), the opposite side from interior step (being interior step circle) securely is connected said center-pole 12 bottoms with said backing plate 2 through helicitic texture; Realized the location of above-mentioned detection device;

4), then said nut 13 is connected on the last thread segment of center-pole 12, make that said center-pole 12 axially on, backing plate 2 from the bottom to top, gland 4, eccentric wheel 6 and base 7 are fixedly linked, and have realized being fastenedly connected of above-mentioned detection device; And with said workpiece 1 fixing being located by connecting; The said seat 8 that revolves is socketed on the face of cylinder 73 of hollow sleeve on the said base 7;

5), said table tool bindiny mechanism and detection table tool 9 be connected to revolve on the seat 8, the said seat 8 that revolves of turn utilizes table tool 9 to rotate a circle around to be detected (being macropore hole face 1b), reads detection table tool 9 data;

6) if data present macropore hole face 1b for oval, then verticality has error; As be read as just circle or approaching just round data, explain that then verticality is high.Finish.

Claims (5)

1. have the interior step end face and the macropore axle center testing apparatus for verticality of step hole workpiece, comprise detection table tool, it is characterized in that, also comprise center-pole, revolve seat, show tool bindiny mechanism, base, eccentric wheel and depression bar;

Said eccentric wheel comprises wheel disc and the tubular shaft that is connected as a single entity; At least three eccentric blades of equal portion on the said wheel disc circumference; Outside surface top, said tubular shaft upper end offers a pair of axial cutting plane that is parallel to each other, and plays the rotating eccentric wheel effect;

Said base comprises chassis and the hollow sleeve that is connected as a single entity, and offers on the bottom surface on said chassis to be used for ccontaining said eccentric groove, makes said eccentric wheel have revolution space; Offer at least three chutes that are used for ccontaining said depression bar on the card on said chassis; The outer circumference surface on said chassis is slightly less than the internal diameter of said macropore; The outer surface of upper of said hollow sleeve is provided with and is used to articulate the said face of cylinder of revolving seat, and the endoporus of tubular shaft articulates on the endoporus of said hollow sleeve and the said eccentric wheel;

Said depression bar is connected through Pressure-bar spring in the chute of said base, and the external end head of said depression bar is used to hold out against the internal circular surfaces of said macropore, and the inner termination of said depression bar is used to contact said eccentric blade;

The said seat that revolves comprises pivoted housing and spiral arm, and said pivoted housing has mesopore, and said mesopore articulates the face of cylinder of said hollow sleeve outer surface of upper; Said spiral arm is fixedly connected on the said pivoted housing lateral surface;

The top of said center-pole is provided with thread segment, is connected with nut on the last thread segment;

Said detection table tool is connected on the said pivoted arm that revolves seat through table tool bindiny mechanism.

2. interior step end face and the macropore axle center testing apparatus for verticality with step hole workpiece according to claim 1 is characterized in that also comprise gland, said gland links to each other with the bottom surface on said chassis from the bottom, is used to support said eccentric wheel.

3. interior step end face and the macropore axle center testing apparatus for verticality with step hole workpiece according to claim 1; It is characterized in that also comprise gland, the bottom of said center-pole is provided with step circle; Said gland is located between said step circle and the said chassis, is used to support said eccentric wheel.

4. interior step end face and the macropore axle center testing apparatus for verticality with step hole workpiece according to claim 1 is characterized in that also comprise gland, said gland center is provided with threaded hole; Said center-pole lower end is provided with screw thread, said backing plate be located at said in step opposite side, link to each other with the screw thread of said center-pole lower end through said threaded hole.

5. interior step end face and the macropore axle center testing apparatus for verticality with step hole workpiece according to claim 1 is characterized in that, the pivoted arm that revolves seat comprises side plate, cross tube, sheer pole and hold out against spring that the said spring housing that holds out against is located on the sheer pole;

Said table tool syndeton comprises pressure head and Connection Block; Said pressure head middle part is connected the external end head of said cross tube through hinge; The bottom of said pressure head is contact outside the side of said big internal surface of hole is provided with, and the top of said pressure head is provided with interior contact towards the side in said macropore axle center; Said Connection Block is fixedly connected on the end face of said side plate or cross tube, and said detection table tool is detachably connected on the said Connection Block, contact in the contact of the detection head of said table tool is said.

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