CN219254139U

CN219254139U - Lathe jig for machining eccentric parts

Info

Publication number: CN219254139U
Application number: CN202320240450.2U
Authority: CN
Inventors: 王晓锋; 陈金珠; 邵雷; 马炳乾
Original assignee: Huatian Huichuang Technology Xi'an Co ltd
Current assignee: Huatian Huichuang Technology Xi'an Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-06-27
Anticipated expiration: 2033-02-16

Abstract

The utility model discloses a lathe jig for machining eccentric parts, which comprises a die core adjusting block, a die core fixing block and an adjusting device, wherein the die core adjusting block is in transition fit with the die core fixing block, the die core fixing block is fixed on a bottom plate, a plurality of fixing holes are formed in the circumferential direction of the die core adjusting block, the adjusting device is in clearance fit with the fixing holes, the center of the die core adjusting block is different from the center of the die core fixing block, the machining position on the machined part can be correspondingly changed by adjusting the rotation of the die core adjusting block, so that a plurality of molded surfaces can be machined on one part machining surface, the problem of poor assembly consistency of a plurality of die cores is solved, the utilization rate of die frames and the die cores is improved, and the production cost is reduced.

Description

Lathe jig for machining eccentric parts

Technical Field

The utility model belongs to the technical field of lathe machining, and particularly relates to a lathe jig for machining eccentric parts.

Background

With the development of the market, the requirements on the service life and the precision of the die are more and more severe, and more dies adopt a method of embedding a die core, wherein the die core refers to a precision part used for key operation of the central part of the die.

The high-precision die core generally adopts a lathe processing mode, belongs to rotationally symmetrical parts, and as shown in fig. 1, one die core can only process one surface type (spherical surface or aspherical surface), and the method causes the problems of poor consistency, low utilization rate of the die frame and large waste of the die core when a plurality of die cores are assembled on one die frame.

Disclosure of Invention

The utility model aims to provide a lathe jig for machining eccentric parts, which aims to solve the problems of low utilization rate of die frames and large waste of die cores in the prior art.

In order to solve the problems, the utility model adopts the following technical scheme;

the lathe jig comprises a die core adjusting block, a die core fixing block and an adjusting device, wherein the die core adjusting block is in transition fit with the die core fixing block, a bottom plate is fixed on the lower portion of the die core fixing block, a plurality of fixing holes are circumferentially formed in the die core adjusting block, the adjusting device is arranged on the die core fixing block, the adjusting device is in clearance fit with the fixing holes, and the center of the die core adjusting block deviates from the center of the die core fixing block.

Further, the adjusting device comprises a spring and a shifting block, and the spring is fixedly connected with the shifting block.

Further, a through hole for installing and processing parts is formed in the center of the die core adjusting block.

Further, the die core fixing block is provided with a through hole for installing the die core adjusting block.

Furthermore, the fixed hole interval angles of the circumference of the die core adjusting block are the same.

Further, the angle between the adjacent fixing holes is 18 degrees.

Furthermore, the shape and the size of the die core fixing block are the same as those of the bottom plate.

Further, the die core fixing block is connected with the bottom plate through bolts.

Compared with the prior art, the utility model has the following beneficial technical effects:

the utility model relates to a lathe jig for machining eccentric parts, which is characterized in that a die core fixing block is fixed on a bottom plate, a die core adjusting block and an adjusting device are arranged on the die core fixing block, a plurality of fixing holes for being matched with the adjusting device are formed in the circumferential direction of the die core adjusting block, so that the angle of the die core adjusting block is adjusted by the adjusting device, meanwhile, the center of the die core adjusting block is different from the center of the die core fixing block, the machining position on the machined part can be correspondingly changed by adjusting the rotation of the die core adjusting block, a plurality of molded surfaces can be machined on one part machining surface, the problem of poor assembly consistency of a plurality of die cores is solved, the utilization rate of die frames and the die cores is improved, and the production cost is reduced.

Drawings

FIG. 1 is a schematic diagram illustrating an assembly of a conventional mold core.

Fig. 2 is an assembly schematic diagram of the novel mold insert.

FIG. 3 is a cross-sectional view of an eccentric part lathe tool in an embodiment of the utility model.

Fig. 4 is a front view of an eccentric part lathe tool in an embodiment of the utility model.

FIG. 5 is a diagram showing the assembly structure of the eccentric part lathe fixture and the mold insert according to the embodiment of the utility model.

In the figure, 1, a die core adjusting block; 2. a die core fixing block; 3. a bottom plate; 4. a spring; 5. a shifting block; 6. and (5) mold core.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

As shown in fig. 3 and 4, a lathe fixture for machining eccentric parts comprises a die core fixing block 2, wherein the die core fixing block 2 is fixed on a bottom plate 3, the die core adjusting block 1 is in transition fit with the die core fixing block 2, the die core adjusting block 1 is used for installing machining parts, an adjusting device is installed on the die core fixing block 2, fixing holes are formed in the circumferential direction of the die core adjusting block 1, the adjusting device is used for fixing the die core adjusting block 1, the die core adjusting block 1 does not rotate in the die core fixing block 2 under the action of the adjusting device, the center of the die core adjusting block 1 is different from the center of the die core fixing block 2, the machining position of the machining parts can be correspondingly changed by adjusting the rotation of the die core adjusting block 1, and therefore a plurality of molded surfaces can be machined on a die core 6 machining surface, the problem that the assembly consistency of a plurality of die cores is poor is solved, meanwhile, the utilization rate of die cores is improved, and the production cost is reduced.

As shown in fig. 3 and 4, the die core adjusting block 1 is provided with a through hole for installing a processing part, namely a die core 6, the processing part is in interference fit with the die core adjusting block 1, the die core adjusting block 1 rotates to drive the processing part to rotate, the adjusting device comprises a spring 4 and a shifting block 5, the spring 4 is fixedly connected with the shifting block 5, the shifting block 5 is used for being matched with a fixing hole on the die core adjusting block 1 to limit the processing part during processing, and the processing part is prevented from rotating, so that the shifting block 5 can be inserted into the fixing hole during processing and limit the die core adjusting block 1 under the elastic force of the spring 4, after one of the surface types is processed, the shifting block 5 is pulled to rotate the die core, the other surface type on the same die core can be processed due to the fact that the center of the die core adjusting block 1 is different from the center of the die core fixing block 2, the number of the surface types processed on the die core can be adjusted through the rotating angle of the die core adjusting block when the number of the surface types is small, the number of the surface types processed on the die core is large, and the distance between the center of the die core adjusting block 1 and the center 2 can be processed when the surface type size is large.

As shown in fig. 3 and 4, the die core fixing block 2 is provided with a threaded hole, the size and shape of the bottom plate 3 are the same as those of the die core fixing block 2, the bottom plate 3 and the die core fixing block 2 are fixedly connected through bolts, the fact that rotation cannot occur in the processing process of the die core fixing block 2 is guaranteed, the interval angles of circumferentially adjacent fixing holes of the die core adjusting block 1 are the same, the angles are 18 degrees, namely the minimum unit of the adjusting angle is 18 degrees, and adjustment of 18 integer times can be achieved.

In addition, in order to ensure the compactness of the assembly, the bottom of the part protrudes from the die cavity adjusting block 1 by about 0.03 mm.

Examples

As shown in fig. 5, during processing, the die core 6 is installed on the die core adjusting block 1 in a close-fitting manner, the die core adjusting block 1 is installed on the die core fixing block 2 in a transitional fit manner, the die core fixing block 2 is fixed on the bottom plate 3 through bolts, at this time, the deflector rod 5 of the adjusting device is inserted into the fixing holes in the circumferential direction of the die core adjusting block 1, 18 ° is arranged between the adjacent fixing holes in the circumferential direction of the die core adjusting block 1, the die core 6 is processed by using a lathe, after the surface type processing on the die core 6 is completed, the die core adjusting block 1 and the die core 6 are fixed again by inserting the deflector rod 5 into the fixing holes after the surface type processing on the die core 6 is completed, and the processed die core 6 is installed on the die carrier as shown in fig. 2.

The device is also suitable for machining other types of eccentric parts by using a lathe.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. The lathe jig for machining the eccentric part is characterized by comprising a die core adjusting block (1), a die core fixing block (2) and an adjusting device, wherein the die core adjusting block (1) is in transition fit with the die core fixing block (2), a bottom plate (3) is fixed at the lower part of the die core fixing block (2), a plurality of fixing holes are formed in the circumferential direction of the die core adjusting block (1), the adjusting device is arranged on the die core fixing block (2), the adjusting device is in clearance fit with the fixing holes, and the center of the die core adjusting block (1) is deviated from the center of the die core fixing block (2).

2. The lathe fixture for machining eccentric parts according to claim 1, wherein the adjusting device comprises a spring (4) and a shifting block (5), and the spring (4) is fixedly connected with the shifting block (5).

3. The lathe fixture for machining eccentric parts according to claim 1, wherein the center of the die core adjusting block (1) is provided with a through hole for installing the machined parts.

4. The lathe fixture for machining eccentric parts according to claim 1, wherein the die core fixing block (2) is provided with a through hole for installing the die core adjusting block (1).

5. The lathe fixture for machining eccentric parts according to claim 1, wherein the fixed hole spacing angles of the die core adjusting block (1) are the same.

6. The lathe tool for machining eccentric parts according to claim 5, wherein the angle between adjacent fixing holes is 18 °.

7. The lathe fixture for machining eccentric parts according to claim 1, wherein the shape and the size of the die core fixing block (2) are the same as those of the bottom plate (3).

8. The lathe fixture for machining eccentric parts according to claim 1, wherein the die core fixing block (2) is connected with the bottom plate (3) through bolts.