CN217370603U

CN217370603U - Auxiliary machining device for central hole of blank

Info

Publication number: CN217370603U
Application number: CN202220171096.8U
Authority: CN
Inventors: 顾正柱
Original assignee: Avic Testing Technology Wuxi Co ltd
Current assignee: Avic Testing Technology Wuxi Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-09-06
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to a blank centre bore auxiliary processing device belongs to metal material and goods machining equipment field, including the frock base member, offer the material hole that is used for holding the blank on the frock base member, the screw hole that runs through is seted up to the lateral wall in material hole, and screw hole one end and material hole intercommunication, the other end and external intercommunication wear to be equipped with the bolt in the screw hole, and the bolt links to each other with frock base member screw thread, and the length of bolt is greater than the degree of depth of screw hole. The utility model solves the problems that the prior art consumes a great deal of time and affects the machining efficiency; the problem that the sizes of the samples are difficult to ensure consistency is solved, the machining efficiency can be improved, less manual intervention of the processed standard coaxiality is ensured, and the qualified rate is improved.

Description

Auxiliary machining device for central hole of blank

Technical Field

The utility model belongs to the technical field of metal material and goods machining equipment and specifically relates to a blank centre bore auxiliary processing device is related to.

Background

Before a metal material is processed into a standard test sample, materials with different shapes need to be roughly processed into block blanks with proper sizes according to the size of the standard test sample, and then the rough blanks are subjected to mechanical processing procedures such as turning, polishing and the like, so that the test sample to be tested is finally obtained. The dimensions of the machined sample and the coaxiality of the middle effective parallel section are strictly required to meet the requirement that the tolerance range of the standard (such as GB/T145) is not exceeded. Therefore, the machining needs to meet higher precision requirements; when a sample piece is processed, the same batch of blank materials are processed into a plurality of block blanks with the length, width and height and the end surface flatness meeting the requirements, each block blank is fixed through a bench clamp, a fixed reference platform is adjusted by using a dial indicator in the process of fixing the blank by the bench clamp, the end surfaces of the block blanks are ensured to be in ideal positions without inclination, deflection and movement, and finally, a processing center drill bit is used for drilling taper holes in the geometric center positions of the upper end surface and the lower end surface of the blank respectively; and then, when the blank is processed into a standard sample, the standard sample with the gauge length section capable of meeting the coaxiality requirement is processed by utilizing a thimble clamp by means of the coaxial taper holes at the two ends of the blank.

However, the prior art has the following problems: before drilling the upper end face and the lower end face of each block blank, the position of the blank in the fixing process of the bench clamp needs to be adjusted by using a dial indicator again, and the end faces are ensured not to incline, deflect and move; therefore, a large amount of time is consumed in the process of adjusting the bench clamp to fix the proper position of the blocky blank in the early period, and the machining efficiency is influenced; in addition, a certain deviation is inevitable at the clamping position of each blank after the bench clamp is fixed and adjusted by using a dial indicator by depending on the personal experience of a technical operator; therefore, the coaxiality of the product is controlled artificially, and the qualified rate is difficult to reach a high level. In practical applications, the utilization rate of the test material matrix may be affected.

SUMMERY OF THE UTILITY MODEL

In order to improve machining efficiency, guarantee simultaneously that the standard sample of processing out has higher qualification rate, the utility model provides a processing device is assisted to blank centre bore.

The utility model provides a pair of blank centre bore assists processingequipment adopts following technical scheme:

the utility model provides a blank centre bore auxiliary processing device, includes the frock base member, offer the material hole that is used for holding the blank on the frock base member, the screw hole that runs through is seted up to the lateral wall in material hole, screw hole one end and material hole intercommunication, the other end and external intercommunication wear to be equipped with the bolt in the screw hole, and the bolt links to each other with frock base member screw thread, and the length of bolt is greater than the degree of depth in screw hole.

Optionally, the material hole penetrates through the tool base body.

Optionally, the tool base body is in a cuboid shape, the cross section of the material hole is in a rectangular shape, the tool base body and the material hole are coaxially arranged, and at least one threaded hole is formed in each of two adjacent side walls of the tool base body.

Optionally, the number of the threaded holes is four, and the four threaded holes are symmetrically distributed around the edge of the tool base body.

Optionally, a guide ring groove is formed in one end, far away from the material hole, of the threaded hole along the circumferential direction.

Optionally, four yielding holes are further formed in the tool base body, and the four yielding holes are respectively formed in four right-angle positions of the material holes and communicated with the material holes.

Has the advantages that:

the utility model discloses an in arranging the blank in the material hole, twist the bolt and support tight blank in the screw hole to restriction blank horizontal migration or crooked, 6 degrees of freedom of restriction blank space motion realize blank and frock base member structure as an organic whole, then can utilize the machining center drill bit to bore the taper hole to terminal surface about the blank, machining, thimble anchor clamps carry out the clamping through both ends taper hole to the blank, can guarantee like this that the standard sample after machining satisfies the axiality requirement. Compared with the existing mechanical processing clamping mode, after the processing of drilling the taper hole on the end face of the blank, the adjusted and fixed centering tool base body does not need to be disassembled, and the blank in the tool base body is replaced; guarantee promptly that the frock base member is effectively fixed at the bench vice, need not to dismantle the frock base member, the blank of change just can satisfy the requirement that the blank does not take place to incline, rotate and remove with the reasonable assembly of frock base member, can save earlier stage adjustment time like this, improve machining efficiency greatly to the frock base member position is fixed unchangeable all the time in the change blank in-process, can eliminate the operating error of technical staff adjustment blank in-process, thereby can also guarantee to process to accomplish sample size uniformity on the basis that improves machining efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of an auxiliary processing device for a central hole of a blank in the embodiment;

FIG. 2 is a schematic view for illustrating the bottom of the auxiliary processing device for the central hole of the blank in the embodiment;

fig. 3 is a sectional view taken in the direction of a-a in fig. 1.

Description of reference numerals: 1. a tooling base body; 2. material holes; 3. a threaded hole; 31. a guide ring groove; 4. and (7) a yielding hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-3.

The embodiment of the utility model discloses blank centre bore auxiliary processing device.

Referring to fig. 1 and 2, a blank centre bore auxiliary processing device, including the frock base member 1, it is material hole 2 to have seted up the cross-section on the frock base member 1, and the 2 cross-sections in material hole are length 20.4mm, wide 10.8 mm's rectangle for hold the blank, the blank is the cuboid form, frock base member 1 and the coaxial setting in material hole 2 for the lateral wall ability of blank and the inner wall laminating in material hole 2, thereby the installation is more firm. The height of the blank is greater than the depth of the material hole 2, so that the bottom end of the blank is abutted against objects such as a table top at the bottom of the tool base body 1, the lower end face of the blank is flush with the lower end face of the tool base body 1, and the blank is prevented from longitudinally displacing or deflecting. The material hole 2 penetrates through the tool base body 1, so that the blank can be conveniently loaded and unloaded.

Four screw holes 3 that run through are seted up to the lateral wall of material hole 2, and the 3 models of screw hole are M8, and 3 one end of screw hole communicates with material hole 2, and the other end communicates with the external world, wears to be equipped with the bolt in the screw hole 3, and the bolt model is M8, and the bolt links to each other with 1 screw thread of frock base member, and the length of bolt is greater than the degree of depth of screw hole 3 for behind the material hole 2 was placed to the blank, rotatable bolt supported tight blank, thereby restriction blank horizontal migration or crooked.

Referring to fig. 2 and 3, four threaded holes 3 are symmetrically distributed about the edge of the tool base body 1, and the center distance between two threaded holes 3 on the same plane is 24mm, so that the blank is tightly supported by the bolt from two directions, the blank is stressed more uniformly, the blank is fixed more stably, and blanks with different sizes can be fixed. One end of the threaded hole 3, which is far away from the material hole 2, is circumferentially provided with a circular guide ring groove 31, so that a bolt can conveniently enter.

Still seted up four holes 4 of stepping down on the frock base member 1, the hole 4 of stepping down is three-quarter circular arc hole, four holes 4 of stepping down set up respectively in four right angle positions of material hole 2, hole 4 and the intercommunication of material hole 2 of stepping down, can reserve certain clearance for the four right angle positions of blank after arranging material hole 2 in, it leads to assembly relation error to exist impurity or burr etc. between 2 right angles in blank and the material hole to prevent the assembling process, make the blank of assembly all be in the same operating mode at every turn.

The utility model discloses an implementation principle of supplementary processingequipment of blank centre bore does: before the material loading, through the amesdial adjustment and use bench vice with frock base member 1 fixed mounting, guarantee that the plane degree of the 1 mesa of frock base member can reach the requirement of regulation to do not take place slope, rotation and removal. Then, the blank is placed in the material hole 2, a bolt is screwed into the threaded hole 3 to abut against the blank, so that the horizontal movement or deflection of the blank is limited, 6 degrees of freedom of the spatial movement of the blank are limited, the blank and the tool base body 1 are integrated into a whole, then, the upper end surface and the lower end surface of the blank can be drilled with a drill bit of a machining center, and during machining, the ejector pin clamp clamps the blank through the taper holes at the two ends, so that the standard sample after being machined can meet the coaxiality requirement.

Compared with the existing mechanical processing clamping mode, after the processing of drilling the taper hole on the end face of the blank, the centering tool base body 1 which is adjusted and fixed does not need to be disassembled, and the blank in the tool base body 1 can be replaced; guarantee promptly that frock base member 1 is effectively fixed at the bench vice, need not to dismantle frock base member 1, the blank of change just can satisfy the blank with 1 rational assembly of frock base member and do not take place the slope, the requirement of rotation and removal, adjustment time in earlier stage can be saved like this, improve machining efficiency greatly, and change blank in-process frock base member 1 position and be fixed unchangeable all the time, can eliminate the operating error of technical staff adjustment blank in-process, thereby can also get rid of more the sample that makes the processing after the artificial influence on the basis that improves machining efficiency has higher axiality qualification rate.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a blank centre bore auxiliary processing device which characterized in that: including tool base member (1), offer material hole (2) that are used for holding the blank on tool base member (1), threaded hole (3) that run through are seted up to the lateral wall in material hole (2), and threaded hole (3) one end and material hole (2) intercommunication, the other end and external intercommunication wear to be equipped with the bolt in screw hole (3), and the bolt links to each other with tool base member (1) screw thread, and the length of bolt is greater than the degree of depth of screw hole (3).

2. The auxiliary machining device for the central hole of the blank as claimed in claim 1, wherein: the material hole (2) penetrates through the tool base body (1).

3. The auxiliary machining device for the central hole of the blank as claimed in claim 1, wherein: frock base member (1) is for being the cuboid form, and material hole (2) cross-section is the rectangle, and frock base member (1) sets up with material hole (2) is coaxial, and the both sides wall that frock base member (1) is adjacent sets up at least one screw hole (3) respectively.

4. The auxiliary machining device for the central hole of the blank as claimed in claim 2, wherein: the four threaded holes (3) are symmetrically distributed on the edge of the tool base body (1).

5. The auxiliary processing device for the central hole of the blank according to any one of claims 1 to 4, wherein: and one end of the threaded hole (3) far away from the material hole (2) is provided with a guide ring groove (31) along the circumferential direction.

6. The auxiliary machining device for the central hole of the blank as claimed in claim 3, wherein: still seted up four holes of stepping down (4) on frock base member (1), four holes of stepping down (4) set up respectively in four right angle positions of material hole (2), hole of stepping down (4) and material hole (2) intercommunication.