CN209998823U - Auxiliary device for workpiece grooving - Google Patents

Abstract

The utility model discloses an auxiliary device for workpiece grooving, which comprises a chuck capable of clamping the workpiece, the auxiliary device further comprises a workpiece for clamping the workpiece for pre-positioning and positioning the workpiece grooving direction through an established reference plane the first positioning mechanism. The utility model pre-positions the workpiece, adjusts the direction of the base where the workpiece needs to be slotted, and then fixes it on the machine tool. The grooves meet high precision requirements.

Description

Auxiliary device for grooving workpieces

technical field

The utility model belongs to the technical field of machining of mechanical parts, in particular to an auxiliary device for grooving a workpiece.

Background technique

In the process of machining mechanical workpieces (parts), some need to make grooves at the corresponding positions of the workpieces. In the prior art, a direct chuck on the machine tool is used to clamp the workpieces, and there is no corresponding auxiliary positioning and datum reference, and the machined grooves are often If the accuracy requirements cannot be met, when grooves in different directions need to be created for the same workpiece, such as when creating transverse grooves and longitudinal grooves, conventional processing devices are likely to cause groove deviation.

Utility model content

The utility model aims to solve the technical problems existing in the prior art. Therefore, the present invention provides an auxiliary device for workpiece grooving, which aims to increase the accuracy of workpiece grooving.

In order to achieve the above-mentioned purpose, the technical scheme that the utility model takes is:

An auxiliary device for grooving a workpiece, comprising a chuck capable of clamping the workpiece, the auxiliary device further comprising a first positioning mechanism for clamping the workpiece for pre-positioning and positioning the workpiece grooving direction through an established reference plane .

The first positioning mechanism includes a positioning column and a positioning boss arranged on the top surface of the positioning column and can be clamped to the workpiece positioning groove. The upper end of the side surface of the positioning column is provided with the reference surface extending along the radial direction of the positioning column.

The positioning column is provided with a positioning installation hole, and the positioning column is fixed on the machine tool table through the positioning pin passing through the positioning installation hole.

The positioning groove is a gourd-shaped concave groove, and the positioning boss is a gourd-shaped boss.

The auxiliary device further includes a second positioning mechanism for positioning the transverse grooves formed in the workpiece.

The second positioning mechanism includes a positioning seat and a positioning rod which is arranged on the positioning seat and can be inserted into the transverse groove.

The positioning rod is vertically fixed on the working table of the machine tool through the positioning seat.

The auxiliary device also includes a vertical indexing head capable of clamping the workpiece.

The chuck is a three-jaw chuck.

The operation method of the auxiliary device for grooving a workpiece comprises the following steps:

Step 1. Pre-position the workpiece and the positioning boss of the positioning column. After correcting the direction through the datum plane of the positioning column, fix the positioning column on the machine table, and clamp the workpiece through the chuck;

Step 2: Machining the transverse groove at the top of the workpiece by the slotting tool of the machine tool;

Step 3: Open the chuck, insert the positioning rod perpendicular to the machine table surface into the transverse groove of the workpiece, and clamp the workpiece through the vertical indexing head;

Step 4: Machining the longitudinal groove on the side of the workpiece by the grooving tool.

The beneficial effects of the present utility model: the utility model pre-positions the workpiece, adjusts the direction of the base where the workpiece needs to be slotted, and then fixes it on the machine tool. The machined transverse grooves at the ends meet higher precision requirements. When machining the longitudinal groove, the auxiliary positioning and limiting function of the second positioning mechanism and the vertical indexing head can meet the longitudinal slotting accuracy of the workpiece, and by adjusting the vertical indexing head to rotate 180 degrees, and then through the second positioning With the assistance of the mechanism, the parallelism and precision requirements of the longitudinal grooves on both sides of the workpiece can be met.

Description of drawings

This manual includes the following drawings, which are as follows:

Figure 1 is a left side view of the workpiece;

Figure 2 is a right side view of the workpiece;

Figure 3 is a front view of the workpiece;

4 is a top view of the first positioning mechanism;

5 is a front view of the first positioning mechanism;

6 is a schematic diagram of the assembly structure in which the workpiece is positioned by the first positioning mechanism;

Fig. 7 is the structural representation of the second positioning mechanism;

FIG. 8 is a schematic diagram of the assembly structure in which the workpiece is positioned by the second positioning mechanism.

The figure is marked as:

1. Workpiece, 2. Chuck, 3. Positioning column, 4. Positioning boss, 5. Reference surface, 6. Positioning mounting hole, 7. Horizontal groove, 8. Positioning seat, 9. Positioning rod, 10. Vertical Indexing head, 11. Longitudinal groove.

Detailed ways

Below with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present utility model will be described in further detail, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present utility model , and facilitate its implementation.

As shown in Figures 1 to 6, an auxiliary device for grooving a workpiece includes a chuck 2 that can clamp the workpiece 1. The chuck preferably adopts a three-jaw chuck, and the auxiliary device also includes a chuck for clamping the workpiece. 1. A first positioning mechanism that performs pre-positioning and positions the workpiece grooving direction through the established reference surface 5. The grooving machining direction of the workpiece is corrected by the reference plane in the first positioning mechanism, so that the groove that meets the requirements can be machined in this reference direction by controlling the machine tool; the pre-positioning function in the first positioning mechanism facilitates the positioning and assembly of the workpiece At the same time, after the pre-positioning structure is fixed on the machine tool table, the workpiece can also be processed to limit the workpiece to prevent the workpiece from rotating.

The first positioning mechanism includes a positioning column 3 and a positioning boss 4 which is arranged on the top surface of the positioning column 3 and can be clamped to the positioning groove of the workpiece. The upper end of the side surface of the positioning column 3 is provided with a reference surface 5 extending in the radial direction of the positioning column. . The positioning column is a cylindrical column structure. When the reference plane is established, the upper end side of the positioning column is cut along the axial direction to form a vertical reference plane. Steps are formed to facilitate the placement of measuring tools, etc. for measuring reference lines.

In order to facilitate the fastening and assembly of the positioning column and the machine tool workbench, the positioning column 3 is provided with a positioning installation hole 6, and the positioning column is fixed on the machine tool workbench through the positioning pin passing through the positioning installation hole. Preferably, the positioning groove is a gourd-shaped concave groove, and the positioning boss 4 is a gourd-shaped boss. By adopting this structure, when positioning and assembling, it can not only play a good pre-positioning function, but also play a good role of limiting and preventing rotation. The positioning and installation holes are arranged at the central axial position of the positioning column, and the positioning and installation holes are preferably countersunk holes. After the positioning pins are installed, there are no countersunk holes to avoid interference between the positioning bosses and the positioning grooves when positioning and assembling. The midpoint of the semicircular structure with a relatively large cross-sectional area in the gourd-shaped boss is on the central axis of the positioning column to ensure the stability of the positioning structure, and the positioning and anti-rotation effect is the best at this time. The middle part of the outer side wall of the positioning column can also have two limit slots in the lateral direction of the positioning column, and the two limit slots are symmetrically arranged on the outer side wall of the positioning column. The limiting component, through the limiting action of the limiting component and the limiting groove, assists the longitudinal limiting action of the positioning pin, so as to further limit the positioning column and prevent the workpiece from rotating.

When grooving, the workpiece is pre-positioned by the above-mentioned first positioning mechanism, and installed on the machine table after the reference plane is corrected, the workpiece is clamped by the chuck, and the transverse groove 7 is machined on the end face of the workpiece by the machine tool.

In addition, as shown in FIGS. 7 to 8 , the above-mentioned auxiliary device further includes a second positioning mechanism for positioning the transverse groove 7 formed in the workpiece 1 . The second positioning mechanism includes a positioning base 8 and a positioning rod 9 provided on the positioning base 8 and inserted into the transverse groove 7 . Preferably, the positioning seat is a cylindrical base, and the positioning rod is located on the central axis of the cylindrical base. The positioning rod is adapted to the transverse groove, so that the positioning rod can be inserted into the transverse groove for limit positioning. During installation, the positioning rod 9 is vertically fixed on the machine tool table through the positioning seat 8. The purpose is to ensure that the positioning rod can limit the transverse groove well, and always keep the positioning groove in the vertical direction of the worktable to avoid subsequent grooving of the workpiece. Rotational deviation occurs, which affects the subsequent slotting accuracy.

In order to facilitate better clamping of the workpiece, a vertical groove 11 is provided on the outer side wall of the workpiece, and the workpiece 1 is clamped by the vertical indexing head 10 in the auxiliary device. The workpiece can also be pre-positioned, limited and anti-rotation by the above-mentioned positioning boss, and the positioning column can be positioned and fixed by the positioning pin. The above-mentioned transverse grooves and longitudinal grooves are both straight grooves.

The operation method for grooving the workpiece using the above-mentioned auxiliary device includes the following steps:

Step 1: Assemble and pre-position the workpiece 1 and the positioning boss 4 of the positioning column 3. After correcting the direction through the reference plane 5 of the positioning column 4, fix the positioning column 3 on the machine table, and clamp the workpiece through the chuck 2. ;

Step 2: The transverse groove at the top of the workpiece is processed by the machine tool grooving tool. The transverse groove is located in the middle of the top of the workpiece, and the length extension direction of the transverse groove is in the same direction as the diameter of the workpiece. That is, the transverse groove divides the upper end face of the workpiece into equal parts. two parts;

Step 3. After processing the transverse groove, open the chuck, insert the positioning rod perpendicular to the machine table surface into the transverse groove of the workpiece, and clamp the workpiece through the vertical indexing head to ensure the longitudinal slotting direction of the workpiece after clamping. perpendicular to the positioning rod;

Step 4. The longitudinal groove on the side of the workpiece is processed by the slotting tool. After the longitudinal groove is opened on the workpiece, when the longitudinal groove needs to be opened on the other side, the positioning rod is separated from the transverse groove, and the vertical indexing head is adjusted by adjusting the vertical indexing head. After rotating 180 degrees, insert the positioning rod into the horizontal slot, and then the slotting operation can be performed.

Using the above auxiliary device, by pre-positioning the workpiece, adjusting the direction of the base where the workpiece needs to be grooved, and then fixing it on the machine tool, through the cooperative limiting action of the machine tool chuck and the first positioning mechanism, the machined end can be made The lateral grooves meet high precision requirements. When machining the longitudinal groove, the auxiliary positioning and limiting function of the second positioning mechanism and the vertical indexing head can meet the longitudinal slotting accuracy of the workpiece, and by adjusting the vertical indexing head to rotate 180 degrees, and then through the second positioning With the assistance of the mechanism, the parallelism and precision requirements of the longitudinal grooves on both sides of the workpiece can be met.

The present invention has been exemplarily described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above manner. As long as the method concept and technical solution of the present invention are adopted for various non-substantial improvements; or without improvement, the above-mentioned concept and technical solution of the present invention are directly applied to other occasions, all of which are included in the present invention. within the scope of protection.

Claims (8)

1, kind of auxiliary device for work piece fluting, including the chuck that can press from both sides tight work piece, its characterized in that, auxiliary device still carries out prepositioning and through the positioning mechanism of the reference surface location work piece fluting direction of seting up including being used for the joint work piece, positioning mechanism includes the reference column and locates the location boss of reference column top face and joint work piece constant head tank, but the side upper end of reference column has been seted up and has been extended along the radial direction of reference column the reference surface.

2. The auxiliary device for workpiece grooving is characterized in that a positioning mounting hole is formed in the positioning column, and the positioning column is fixed on a machine tool workbench through the positioning mounting hole by a positioning pin.

3. An auxiliary device for workpiece grooving according to claim 1 wherein the positioning slot is a gourd-shaped concave slot and the positioning boss is a gourd-shaped boss.

4. An auxiliary device for grooving a workpiece as claimed in claim 1 wherein the auxiliary device further comprises a second locating mechanism for locating the transverse groove cut in the workpiece.

5. An auxiliary device for workpiece grooving according to claim 4 wherein the second positioning mechanism includes a positioning socket and a positioning rod on the positioning socket that is insertable into the transverse groove.

6. The auxiliary device for workpiece grooving of claim 5 wherein the locating rod is vertically fixed to the machine tool table by a locating seat.

7. An auxiliary device for grooving workpieces according to claim 1, wherein the auxiliary device further comprises a vertical index head to which a workpiece can be clamped.

8. An auxiliary device for grooving a workpiece as in claim 1 wherein the chuck is a three jaw chuck.

Images