The survey instrument of spiral gear relative position angle and measuring method thereof
Technical field
The present invention relates to a kind of survey instrument, particularly relate to a kind of survey instrument and measuring method thereof of spiral gear relative position angle.
Background technology
At present because client is to the needs of the technique of Product Assembly, propose there is angle requirement, so also propose new test item accordingly when component test to the relative position of the flat bit plane of the afterbody of kit gear and gear tooth slot.Because the flat bit plane of gear afterbody and gear tooth slot are at a distance of about 200mm, flat bit plane and teeth groove opening are in radial direction out of plumb, axial direction is also not parallel, and on the deflection instrument generally used, dial gauge measurement cannot be played again to teeth groove location, owing to adding man-hour at Hobbing by cutter quality, workpiece material, machine cut optimum configurations etc. affects occasional and adopts axial motion gear hob to ensure workpiece processing quality and to extend cutter life, again because lathe principle of work restriction each string cutter must cause the variation of gear tooth slot cut-out direction, thus cause the relative position angle of the flat bit plane of the afterbody of gear and gear tooth slot also to change, and after each debugging or string cutter, all want trial cut to cut could proofread several times to make the flat bit plane of gear afterbody and gear tooth slot relative position angle within margin tolerance, even so upper three-dimensional coordinate monitor station is also unrealistic, Positioning Gear is carried out because three-dimensional coordinate monitor station also needing multiple orientation tool, cumbersome and waste.Given this cubing of a kind of convenient and practical flat bit plane of prototype gear afterbody and gear tooth slot relative position angle will be designed.
Summary of the invention
The present invention mainly solves the deficiencies in the prior art, provides a kind of compact conformation, the survey instrument of the spiral gear relative position angle of the relative position angle of the quick flat bit plane of detection of gear afterbody of energy and gear tooth slot and measuring method thereof.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals:
A kind of survey instrument of spiral gear relative position angle, comprise locating piece, the bottom of described locating piece is provided with dip plane, measurement endoporus is provided with in described locating piece, measured workpiece is provided with in described measurement endoporus, the head of described measured workpiece is teeth portion, described measured workpiece afterbody is flat bit plane, the right-hand member of described teeth portion is provided with teeth portion step, described measured workpiece is fixed by baffle plate and locating piece, the transverse plane of described teeth portion step and the transverse plane of locating piece lateral wall are that same linearity distributes, the top of described locating piece is plugged with dog screw, described dog screw extends to be measured in endoporus, positioning ball is provided with between described dog screw and measured workpiece.
As preferably, described baffle plate is fixed by trip bolt and locating piece, described baffle plate by teeth portion step with it mutually gear connect.
As preferably, described dip plane is located on plane-table operation platform, and described positioning ball and dog screw fix.
The angle of inclination of dip plane is the angle of measured workpiece teeth groove and the flat bit plane of gear afterbody, direction is contrary, principle is exactly the angle of offsetting gear tooth slot and the flat bit plane of afterbody by the angle of survey instrument, make the flat bit plane of afterbody parallel with the platen surface of laying survey instrument, measure the nonparallelism of tail plane again with dial gauge, this nonparallelism is calculated into the angle with gear centre line.
A measuring method for spiral gear relative position angle measurement tool, carry out according to the following steps:
(1), measured workpiece is installed:
The dip plane of locating piece is lain on plane-table operation platform, the dog screw on locating piece top is unscrewed, and the teeth portion position of measured workpiece is filled in the measurement endoporus of locating piece, cover baffle plate and fixed with trip bolt, measured workpiece is drawn toward baffle plate direction, makes the teeth portion step of teeth portion in measured workpiece contact with baffle plate by jail;
(2), measured workpiece is located:
Rotate measured workpiece and make the flat bit plane of gear afterbody upward, to relative horizontal position, rotate the dog screw of locating piece top again, while make dog screw slowly tighten, left-right rotation measured workpiece on one side, need to remain that the teeth portion step of measured workpiece and the transverse plane of locating piece lateral wall are that same linearity distributes in the process of rotating measured workpiece, all the time measured workpiece is strained toward baffle plate direction, when dog screw being slowly screwed to lowest part, positioning ball and the gear phase screens in measured workpiece, measured workpiece cannot be rotated by location again;
When dog screw is slowly tightened, measured workpiece must be rotated when time on positioning screw screw top to the measured workpiece middle gear flank of tooth cannot tighten again, until dog screw twists not go down, till measured workpiece also cannot rotate, now dog screw and measured workpiece have fixed;
(3), measured workpiece is measured:
Plane-table operation platform is put height gauge that is equipped with dial gauge again, shake height gauge rotating disk, dial gauge contact is touched mutually with measured workpiece afterbody, mobile height gauge, dial gauge contact is moved radially on the flat bit plane of measured workpiece afterbody, measures the radial height difference of the flat bit plane of measured workpiece afterbody; The contact of dial gauge moves radially at flat bit plane the width dimensions that distance is flat bit plane;
(4), whether judge is qualified:
To compare through the height difference calculating gained with the relative position angle of the flat bit plane of measured workpiece actual requirement and gear tooth slot whether pass judgment on the relative position angle of the flat bit plane of measured workpiece afterbody to gear tooth slot qualified.
Therefore, the survey instrument of spiral gear relative position angle of the present invention and measuring method thereof, compact conformation, structure is simple, low cost of manufacture, measuring method is easy, and parameter designing that can be different according to gear of the same type goes out different survey instruments, method not only can measure the relative position angle of straight-tooth, the flat bit plane of spiral gear afterbody and gear tooth slot in the same way, and the problem that the relative position angle that can solve the flat bit plane of gear afterbody and gear tooth slot is larger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the present invention and plane-table operation platform.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, a kind of survey instrument of spiral gear relative position angle, comprise locating piece 1, the bottom of described locating piece 1 is provided with dip plane 2, be provided with in described locating piece 1 and measure endoporus 3, measured workpiece 4 is provided with in described measurement endoporus 3, the head of described measured workpiece 4 is teeth portion 5, described measured workpiece 4 afterbody is flat bit plane 6, the right-hand member of described teeth portion 5 is provided with teeth portion step 7, described measured workpiece 4 is fixed by baffle plate 8 and locating piece 1, the transverse plane of described teeth portion step 7 and the transverse plane of locating piece 1 lateral wall are that same linearity distributes, the top of described locating piece 1 is plugged with dog screw 9, described dog screw 9 extends to be measured in endoporus 3, positioning ball 10 is provided with between described dog screw 9 and measured workpiece 4.
Described baffle plate 8 is fixed by trip bolt 11 and locating piece 1, and described baffle plate 8 is kept off mutually with it by teeth portion step 7 and connecing.
Described dip plane 2 is located on plane-table operation platform 12, and described positioning ball 10 fixes with dog screw 9.
A measuring method for spiral gear relative position angle measurement tool, carry out according to the following steps:
(1), measured workpiece is installed:
The dip plane 2 of locating piece 1 is lain on plane-table operation platform 12, the dog screw 9 on locating piece 1 top is unscrewed, and the teeth portion position of measured workpiece 4 is filled in the measurement endoporus 3 of locating piece 1, cover baffle plate 8 and fixed with trip bolt 11, measured workpiece 4 is drawn toward baffle plate 8 direction, makes the teeth portion step 7 of teeth portion in measured workpiece 4 contact with baffle plate 8 by jail;
(2), measured workpiece is located:
Rotate measured workpiece 4 and make the flat bit plane 6 of gear afterbody upward, to relative horizontal position, rotate the dog screw 9 of locating piece 1 top again, while make dog screw 9 slowly tighten, left-right rotation measured workpiece 4 on one side, need to remain that the teeth portion step 7 of measured workpiece 4 is that same linearity distributes with the transverse plane of locating piece 1 lateral wall in the process of rotating measured workpiece 4, all the time measured workpiece 4 is strained toward baffle plate 8 direction, when dog screw 9 is slowly screwed to lowest part, positioning ball 10 and the gear phase screens in measured workpiece 4, measured workpiece 4 cannot be rotated by location again, when dog screw 9 is slowly tightened, measured workpiece 4 must be rotated when cannot tighten again when dog screw 9 pushes up on the measured workpiece 4 middle gear flank of tooth, until dog screw 9 twists not go down, till measured workpiece 4 also cannot rotate, now dog screw 9 and measured workpiece 4 have fixed,
(3), measured workpiece is measured:
Plane-table operation platform 12 is put height gauge that is equipped with dial gauge again, shake height gauge rotating disk, dial gauge contact is touched mutually with measured workpiece 4 afterbody, mobile height gauge, dial gauge contact is moved radially on the flat bit plane 6 of measured workpiece 4 afterbody, measures the radial height difference of the flat bit plane 6 of measured workpiece 4 afterbody; The contact of dial gauge moves radially at flat bit plane 6 width dimensions that distance is flat bit plane 6;
(4), whether judge is qualified:
Whether qualifiedly compare through the height difference calculating gained the relative position angle passing judgment on the flat bit plane of measured workpiece 4 afterbody 6 pairs of gear tooth slot with the flat bit plane of measured workpiece 4 actual requirement 6 and the relative position angle of gear tooth slot.