CN202640052U

CN202640052U - Plane grinding fixture for disc type workpiece

Info

Publication number: CN202640052U
Application number: CN 201220235426
Authority: CN
Inventors: 吴永旭; 林伟; 王泽镕
Original assignee: Shanghai East Pump Group Co Ltd
Current assignee: Shanghai East Pump Group Co Ltd
Priority date: 2012-05-23
Filing date: 2012-05-23
Publication date: 2013-01-02
Anticipated expiration: 2022-05-23

Abstract

The utility model discloses a plane grinding fixture for a disc type workpiece. The plane grinding fixture comprises a tapered mandrel, an expansion sleeve, a bottom plate and a locking screw, wherein the expansion sleeve is arranged into the hole of the bottom plate; the tapered mandrel is arranged into the expansion sleeve; the inner hole of the disc type workpiece to be machined is used as a locating reference, and the disc type workpiece to be machined is arranged into the outer circle of the expansion sleeve; and during machining, the end face of the workpiece to be machined is close to that of the bottom plate, and the workpiece to be machined is locked on the bottom plate through the locking screw. The plane grinding fixture for the disc type workpiece disclosed by the utility model is simple in structure and easy to manufacture; by virtue of the plane grinding fixture, all parts can be self-made; the workpiece is convenient to mount and simple to operate; the workpiece can be clamped and fixed only by virtue of the locking of the locking screw; the workpiece can be dismounted only by adopting a threaded jackscrew to push the tapered mandrel out; by virtue of the plane grinding fixture, the machining efficiency is high, and as the workpiece is located by the inner hole of the workpiece when being clamped, the clamping efficiency is high, and preparation working hours are saved; after being ground, the workpiece can achieve the form and location tolerance and surface smoothness as required by a drawing design; and an experiment proofs that the production efficiency can be improved for about 1.1 times.

Description

A kind of flat surface grinding frock of disc type work

Technical field

The utility model relates to a kind of flat surface grinding frock, specially refers to a kind of surface smoothness that can guarantee workpiece, also can guarantee the flat surface grinding frock of disc type work of the depth of parallelism of both ends of the surface.

Background technology

In the process component process, often can run into the disc type work of some austenitic stainless steel materials, require to guarantee the depth of parallelism and the surface roughness of two end faces to be processed, be the schematic diagram of workpiece to be processed 5 referring to accompanying drawing 1.So just require work in-process to need to process to guarantee by flat surface grinding.But because the material of this type of disc type work is austenitic stainless steel, the sucker of common plane grinding machine is difficult to hold this type of workpiece, and work in-process must come this type of workpiece of clamping by auxiliary mould like this, could grinding.Therefore be the operability of this type of workpiece processing of assurance and the crudy of workpiece, designed the special-purpose processing unit (plant) of a cover and come this type of workpiece of grinding to be very important.

The abrasive machining device that extensively adopts at present is that scroll chuck is adsorbed on the workbench of surface grinding machine, with scroll chuck clamping work pieces cylindrical

B, by planar end surface, and then grinding work piece.Wherein: before scroll chuck uses, by revising three-jaw inner circle and bottom surface at lathe, guarantee the opposing parallel degree of three-jaw location end face.

Produce magnetic field after grinder chuck starts, scroll chuck is had very strong absorption affinity; And workpiece is the austenitic stainless steel material, and the grinder chuck absorption affinity is very weak.

The processing of this kind method can guarantee the surface smoothness of workpiece, but is difficult to guarantee the depth of parallelism of both ends of the surface.Therefore in reality is produced, improve present processing unit (plant) and guarantee product quality, have important practical significance.

The utility model content

For the problems referred to above, main purpose of the present utility model is to provide a kind of surface smoothness that can guarantee workpiece, also can guarantee the flat surface grinding frock of disc type work of the depth of parallelism of both ends of the surface.

The utility model solves above-mentioned technical problem by following technical proposals: a kind of flat surface grinding frock of disc type work, described flat surface grinding frock comprises spindle taper, ringfeder, base plate, lock-screw, described ringfeder is packed in the hole of base plate, described spindle taper is packed in the described ringfeder, the endoporus of workpiece to be processed of dish class is that positioning datum is packed on the described ringfeder cylindrical, add the end face of described workpiece to be processed in man-hour by the flat-floored end face, adopt lock-screw that workpiece to be processed is locked on the base plate.

Positive progressive effect of the present utility model is: the flat surface grinding frock of the disc type work that the utility model provides has the following advantages:

The utility model tool structure is simple, and is easy to manufacture, and all parts can both be made by oneself; Workpiece is easy for installation, and is simple to operate.Only need lock-screw locking just can be realized that the clamping of workpiece is fastening, with the screw thread jackscrew spindle taper is ejected, just can realize the dismounting of workpiece; Working (machining) efficiency is high, is that clamping efficient is high with the inner hole of workpiece location during clamping, when saving beam worker, need not as clamping centering on scroll chuck by planar end surface.The utility model grinding workpiece out satisfies form and position tolerance and the surface smoothness of Design Requirement Drawing, experimental results show that production efficiency can improve about 1.1 times.

Description of drawings

Fig. 1 is the schematic diagram of workpiece to be processed.

Fig. 2 is the structural representation of spindle taper of the present utility model.

Fig. 3-1 is the structural representation of ringfeder of the present utility model.

Fig. 3-2 is the left view of the structural representation of ringfeder shown in Fig. 3-1.

Fig. 4 is the structural representation of base plate of the present utility model.

Fig. 5 is the structural representation of the general assembly drawing of flat surface grinding frock of the present utility model.

Fig. 6 is the left view of Fig. 5.

Fig. 7 is the use schematic diagram of flat surface grinding frock of the present utility model

Fig. 8 is the left view of Fig. 7.

The specific embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.

Fig. 2 is the structural representation of spindle taper of the present utility model, Fig. 3-1 is the structural representation of ringfeder of the present utility model, Fig. 3-2 is the left view of the structural representation of ringfeder shown in Fig. 3-1, and Fig. 4 is the structural representation of base plate of the present utility model, shown in above figure, the utility model comprises spindle taper 1, ringfeder 2, base plate 3, lock-screw 4, the planform of the parts that this frock of the utility model comprises is seen Fig. 2-4, and design principle is with disc type work endoporus to be processed

A is that positioning datum comes the grinding both ends of the surface, thereby guarantees the depth of parallelism of both ends of the surface.

Wherein in each critical size of parts: 1. ringfeder cylindrical

A1, base plate locating hole

The basic size of A2 and disc type work endoporus to be processed

The basic size of A is identical, just the ringfeder cylindrical A1 and base plate locating hole

A2 and disc type work endoporus to be processed

A adopts matched in clearance; 2. the tapering of the tapering of spindle taper and ringfeder inner circle adopts the Morse's taper fit structure; 3. the inside nominal diameter of the screwed hole Md1 of spindle taper is greater than the inside nominal diameter of the screwed hole Md2 of base plate.

The clamping of workpiece and using method are referring to Fig. 7-8: with ringfeder 2 base plate 3 holes of packing into Among the A2, spindle taper 1 being packed in the ringfeder 2, is disc type work endoporus in Fig. 7 and 8 with workpiece to be processed 5 then again

A is positioning datum ringfeder 2 cylindricals of packing into

On the A1, workpiece end face by the flat underside end face, with lock-screw 4 lockings (annotate: lock-screw and base thread hole Md2 match), has been realized workpiece to be processed 5 clamping on the flat surface grinding frock at last, thus can be on surface grinding machine grinding work piece.When a cross grinding need to finish the grinding other end maybe need dismantle workpiece, need the screwed hole Md1 with screw thread jackscrew addendum cone degree axle, spindle taper is ejected, realized the dismounting to workpiece.Installation way is the same when needing the grinding other end.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. the flat surface grinding frock of a disc type work, it is characterized in that: described flat surface grinding frock comprises spindle taper (1), ringfeder (2), base plate (3), lock-screw (4), described ringfeder (2) is packed in the hole of base plate (3), described spindle taper (1) is packed in the described ringfeder (2), the endoporus of workpiece to be processed (5) of dish class is that positioning datum is packed on described ringfeder (2) cylindrical, add the end face of described workpiece to be processed in man-hour (5) by the end face of flat underside (3), adopt lock-screw (4) that workpiece to be processed (5) is locked on the base plate (3).