CN110576198A

CN110576198A - Elastic ejection aid for processing internal and external threads

Info

Publication number: CN110576198A
Application number: CN201810626904.3A
Authority: CN
Inventors: 章荣康
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-09
Filing date: 2018-06-09
Publication date: 2019-12-17

Abstract

The invention relates to an elastic ejection aid for machining internal and external threads by a lathe, and belongs to the field of precision machining. The invention is technically characterized in that an external thread workpiece (2) and an internal thread workpiece (17) are clamped in a lathe chuck (1), an elastic jacking aid core rod (8) is clamped in a tailstock drill chuck (13), when the tailstock jacks leftwards, a reaction force is generated between the external thread workpiece (2) and the internal thread workpiece (17) and a die drift (3) and a screw tap (16) and is pressed towards a jacking sleeve (4) and a plane thrust bearing (5), the force is transmitted to a butterfly spring (6), at the moment, a jacking sleeve (4) moves rightwards along the core rod (8), an H elastic force compression space is reserved in a drawing 1, an external thread screwing die drift is processed by manually rotating the die drift (3), the internal thread drift is processed by manually rotating a loose die drift (15) to rotate the screw tap (16), the internal thread drift is processed as long as the thread enters three circles, the tailstock can be loosened, the lathe is started to rotate and process internal and external threads, a screw tap thimble (14) is in a shape of jacking needle and a thimble, optionally, in fig. 1, 1 to 13 are external threads and 14 to 17 are internal threads.

Description

Elastic ejection aid for processing internal and external threads

The technical field is as follows:

The invention relates to an elastic ejection aid for internal and external threads machined by a lathe, belonging to the field of precision machining.

Background

The well-known lathe usually adopts the die and the screw tap when processing the internal and external threads, and when processing the threads by the die and the screw tap, the commonly used tailstock has a solid auxiliary jacking which requires quite skillful lathe skill, has large jacking force and easy thread sliding, has small jacking force and easy thread deflection, and once the thread deflection occurs, the screw tap or the die is extremely easy to damage.

the invention content is as follows:

In order to solve the problems in the prior art, the invention provides an elastic ejecting aid for processing internal and external threads, wherein 1 to 13 are used for processing external threads, 14 to 17 are used for processing internal threads and are shown in figure 1, the elastic ejecting aid is technically characterized in that an external thread workpiece (2) and an internal thread workpiece (17) are clamped in a lathe chuck (1), an elastic ejecting aid mandrel (8) is clamped in a tailstock drill chuck (13), when the tailstock jacks leftwards, a reaction force is generated between the external thread workpiece (2) and the internal thread workpiece (17) and a die drift wrench (3) and a screw tap (16), the reaction force is pressed towards an ejecting sleeve (4) and a plane thrust bearing (5), the force is transmitted to a butterfly spring (6), the ejecting sleeve (4) moves rightwards along the mandrel (8), an H elastic gap is reserved in figure 1, the die drift wrench (3) is manually rotated to process an external thread reaming head, and the screw tap (16) is manually rotated by a movable wrench (15), the start of the internal thread is processed, the tailstock can be loosened as long as the thread enters three circles, the lathe is started to rotate to process the internal thread and the external thread, the screw tap thimble (14) is shown in figure 2, the screw tap thimble (14) is selected according to the shape of the thimble and the thimble hole at the tail of the screw tap, and the tap thimble can be turned for use according to the requirement.

the invention has the beneficial effects that: the elastic ejecting aid for processing the internal and external threads has the advantages that due to the elastic mechanism, a skilled technician is not needed in operation, a general student can process the internal and external threads by hand, the ejecting force is elastically buffered, the defects of tooth slipping, deflection and the like are not easy to occur during thread processing, the rate of certified products of workpieces is guaranteed, the service life of a thread tool is prolonged, the plane thrust bearing (5) is arranged in the elastic ejecting aid for the internal and external threads, when a die is manually rotated and the threads of a screw tap are started, the rotation is easy, the work is stable, and the operation is simple.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and accompanying FIG. 1.

FIG. 1 shows an elastic ejection aid for processing internal and external threads, wherein the upper parts 1 to 13 are used for processing external threads by using a die drift (3), and the lower parts 14 to 17 are used for processing internal threads by using a screw tap (16);

FIG. 2 tap thimble

In the figure 1, a lathe chuck 1, a workpiece 3 with external threads and a die holder 4 are externally screwed, a plane thrust bearing 6, a belleville spring 7, a retainer ring 8, a core rod 9, a hexagon nut 10, a sleeve 11, a washer 12 and an elastic retainer ring 13 for a shaft are drilled and clamped.

14-tap thimble 15 adjustable wrench 16-tap 17 internal thread workpiece H is elastic compression movable space

The specific implementation mode is as follows:

The specific implementation mode adopts the following technical scheme: referring to the technical characteristics of the invention in figure 1, an external thread workpiece (2) and an internal thread workpiece (17) in figure 1 are clamped in a lathe chuck (1), an elastic jacking aid core rod (8) is clamped in a tailstock drill chuck (13), when the tailstock jacks leftwards, a reaction force is generated between the external thread workpiece (2) and the internal thread workpiece (17) and a die drift wrench (3) and a screw tap (16) and is pressed against a jacking sleeve (4) and a plane thrust bearing (5), the force is transmitted to a butterfly spring (6), then the jacking sleeve (4) moves rightwards along the core rod (8), an H elastic compression movable space is reserved in figure 1, an external thread lifting head is processed by manually rotating the die drift wrench (3), the screw tap (16) is rotated by manually rotating a loose die drift wrench (15), the internal thread lifting head is processed, the needle thread can be loosened to start a tailstock lathe to process internal and external threads as long as the needle thread enters three circles, a thimble (14) is shown in figure 2 and is in the shape of a tail jacking and, the screw tap ejector pin (14) is selected and can be turned for use as required, when the internal and external threads are machined, the lathe is not started, the left hand rotates the die holder (3) or the adjustable die holder (15), and the right hand rotates the tail frame handle of the lathe, so that the internal and external thread elastic ejector pin can keep proper pressure.

Claims

1. The invention relates to an elastic ejection aid for machining internal and external threads by a lathe, which replaces a solid auxiliary support and is processed by pressing with experience and hand feeling,

the invention is technically characterized in that an external thread workpiece (2) and an internal thread workpiece (17) shown in figure 1 are clamped in a lathe chuck (1), an elastic jacking aid core rod (8) is clamped in a tailstock drill chuck (13), when the tailstock jacks leftwards, the external thread workpiece (2), the internal thread workpiece (17), a die drift wrench (3) and a screw tap (16) generate reaction force to press a jacking sleeve (4) and a plane thrust bearing (5), the force is transmitted to a butterfly spring (6), the jacking sleeve (4) moves rightwards along the core rod (8), H elastic compression space is reserved in figure 1, an external thread screwing wrench (3) is manually rotated to process an external thread starting head, a movable wrench (15) is manually rotated to rotate the screw tap (16) to process the internal thread starting head, the tailstock can be loosened as long as the screw thread enters three circles, the lathe is started to rotate, internal and external threads are processed, a screw tap thimble (14) is shown in figure 2 and takes the shape of a tail jacking and thimble hole, the tap thimble (14) is selected and can be turned around for use according to the requirement.

2. the internal and external thread spring force booster structure claim of claim 1.

3. The use of the adjustable head of a conical-tipped needle according to claim 1.