Positioning tool for grinding eccentric taper hole of tailstock sleeve
Technical Field
The invention relates to a tool clamp, in particular to a positioning tool for grinding an eccentric taper hole of a tailstock sleeve.
Background
An eccentric shaft is required to be used on a tailstock sleeve of a machine tool, and meanwhile, the shaft hole of the eccentric shaft needs to be ground. However, since the shaft is eccentric, the machine tool is not easily adjusted during the turning and grinding of the taper hole, and even if the adjustment and calibration are performed with great effort, it is difficult to ensure the machining accuracy and the machining efficiency is low. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the positioning tool which is simple in structure, ingenious in design, reasonable in layout, capable of quickly and conveniently clamping and positioning the eccentric shaft and used for grinding.
The technical solution of the invention is as follows: the utility model provides a tailstock sleeve eccentric taper hole grinding is with location frock which characterized in that: the tool comprises a hollow cylindrical fixture body 1, a plurality of groups of fixed supporting mechanisms and adjusting clamping mechanisms are uniformly distributed in the length direction of the fixture body 1, a positioning pin mechanism is arranged in the middle of the fixture body 1,
the fixed supporting mechanism comprises a bottom supporting block 2 positioned at the bottom of the cylindrical clamp body 1, the top end of the bottom supporting block 2 penetrates through a through hole formed in the cylindrical clamp body 1 and is positioned in an inner cavity of the cylindrical clamp body 1, the fixed supporting mechanism further comprises a lateral supporting block 3 fixedly connected to the side wall of the cylindrical clamp body 1 through a connecting bolt, the end part of the lateral supporting block 3 penetrates through the through hole formed in the cylindrical clamp body 1 and is positioned in the inner cavity of the cylindrical clamp body 1,
the adjusting and clamping mechanism comprises a top clamping pressing block 4 and a lateral clamping pressing block 5, the top clamping pressing block 4 and the lateral clamping pressing block 5 are both in threaded connection with threaded holes formed in the cylindrical clamp body 1, one ends of the top clamping pressing block 4 and the lateral clamping pressing block 5, which are positioned outside the cylindrical clamp body 1, are both provided with a driving hexagonal 6, and one side, which is far away from the driving hexagonal 6, penetrates through the threaded holes and is positioned in an inner cavity of the cylindrical clamp body 1,
the lateral supporting block 3, the bottom supporting block 2, the lateral clamping pressing block 5 and the top clamping pressing block 4 are respectively distributed on the three o 'clock direction, the six o' clock direction, the nine o 'clock direction and the twelve o' clock direction of the longitudinal section of the cylindrical clamp body 1,
the positioning pin mechanism comprises a pin sleeve 7 fixedly arranged on the cylindrical clamp body 1, a positioning pin 8 is connected in the pin sleeve 7 in a sliding mode, and the bottom end of the positioning pin 8 penetrates through the pin sleeve 7 and is located in the inner cavity of the cylindrical clamp body 1.
Compared with the prior art, the invention has the following advantages:
this kind of structural style's eccentric taper hole of tailstock sleeve grinding is with location frock, a structure is simple, design benefit, it is rationally distributed, it is difficult to accurate location and the tight problem of clamp to traditional eccentric shaft, a special structure is designed, it utilizes the supporting shoe that is located three o' clock and six o 'clock directions to support the eccentric shaft, utilize the compact heap of nine o' clock and twelve o 'clock directions to compress tightly the eccentric shaft on eccentric position, utilize the locating pin to restrict its circumferencial direction's degree of freedom simultaneously, thereby realize the fast reading, it is accurate, convenient eccentric location presss from both sides tight operation. The appearance of the eccentric shaft taper hole machining device can greatly improve the machining efficiency and machining precision of the eccentric shaft taper hole and simultaneously reduce the labor capacity of personnel. And the manufacturing process is simple, the manufacturing cost is low, so that the novel LED lamp has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.
Drawings
FIG. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a side view of an embodiment of the present invention.
Detailed Description
The following description will explain embodiments of the present invention with reference to the accompanying drawings. As shown in fig. 1 and 2: a positioning tool for grinding an eccentric taper hole of a tailstock sleeve comprises a hollow cylindrical clamp body 1, a plurality of groups of fixed supporting mechanisms and adjusting clamping mechanisms are uniformly distributed in the length direction of the clamp body 1, a positioning pin mechanism is arranged in the middle of the clamp body 1,
the fixed supporting mechanism comprises a bottom supporting block 2 positioned at the bottom of the cylindrical clamp body 1, the top end of the bottom supporting block 2 penetrates through a through hole formed in the cylindrical clamp body 1 and is positioned in an inner cavity of the cylindrical clamp body 1, the fixed supporting mechanism further comprises a lateral supporting block 3 fixedly connected to the side wall of the cylindrical clamp body 1 through a connecting bolt, the end part of the lateral supporting block 3 penetrates through the through hole formed in the cylindrical clamp body 1 and is positioned in the inner cavity of the cylindrical clamp body 1,
the adjusting and clamping mechanism comprises a top clamping pressing block 4 and a lateral clamping pressing block 5, the top clamping pressing block 4 and the lateral clamping pressing block 5 are both in threaded connection with threaded holes formed in the cylindrical clamp body 1, one ends of the top clamping pressing block 4 and the lateral clamping pressing block 5, which are positioned outside the cylindrical clamp body 1, are both provided with a driving hexagonal 6, and one side, which is far away from the driving hexagonal 6, penetrates through the threaded holes and is positioned in an inner cavity of the cylindrical clamp body 1,
the lateral supporting block 3, the bottom supporting block 2, the lateral clamping pressing block 5 and the top clamping pressing block 4 are respectively distributed on the three o 'clock direction, the six o' clock direction, the nine o 'clock direction and the twelve o' clock direction of the longitudinal section of the cylindrical clamp body 1,
the positioning pin mechanism comprises a pin sleeve 7 fixedly arranged on the cylindrical clamp body 1, a positioning pin 8 is connected in the pin sleeve 7 in a sliding mode, and the bottom end of the positioning pin 8 penetrates through the pin sleeve 7 and is located in the inner cavity of the cylindrical clamp body 1.
The working process of the positioning tool for grinding the eccentric taper hole of the tailstock sleeve provided by the embodiment of the invention is as follows: firstly, an eccentric shaft 9 needing grinding is placed into an inner cavity of a cylindrical fixture body 1, proper bottom supporting blocks 2 and side supporting blocks 3 are selected in advance according to the specific size, specification and eccentricity degree of the eccentric shaft 9, a plurality of bottom supporting blocks 2 are inserted into the bottom of the cylindrical fixture body 1 through holes, and a plurality of side supporting blocks 3 are fixed on the side portion of the cylindrical fixture body 1 by utilizing connecting bolts,
then, the positioning pin 8 is inserted into the pin sleeve 7, and the end part of the positioning pin 8 is inserted into a key groove which is originally formed on the eccentric shaft 9, namely, the positioning pin 8 limits the degree of freedom of the eccentric shaft 9 in the rotating direction;
then the driving hexagons 6 at the ends of the top clamping pressing block 4 and the lateral clamping pressing block 5 are respectively rotated to drive the two pressing blocks to move towards the direction of the eccentric shaft 9, and under the action of the two pressing blocks and the two supporting blocks, the eccentric shaft 9 and the cylindrical clamp body 1 are relatively fixed, and the axes of the two pressing blocks and the cylindrical clamp body 1 are not overlapped.
The clamp is fixed on a main shaft of a machine tool, the machine tool is started, the main shaft drives the clamp and an eccentric shaft 9 fixed in the clamp to rotate together, and grinding operation of a taper hole on the eccentric shaft 9 is realized by matching with feeding action of a cutter.