CN112091653A - Lathe Fixtures for Machining Eccentric Hole Sleeves - Google Patents

Abstract

The invention discloses a lathe fixture for processing an eccentric hole shaft sleeve, which is used for setting on a lathe and processing the eccentric hole of a shaft piece by using a general lathe. Including a base, the base has a mounting plate, the mounting plate is provided with a clamping shaft, the mounting plate is provided with a T-shaped groove, and a V-shaped block is provided, the V-shaped block has a V-shaped groove, and the T-shaped groove is located in the T-shaped groove. A first screw is set in the middle, the big end of the first screw is inserted into the T-shaped groove, the rod part extends away from the clamping shaft and passes through the V-shaped block, and the first nut is threadedly matched with the first screw and locked The V-shaped block is provided with a support seat, and a second screw is provided, the large end of the second screw is inserted into the T-shaped groove, the rod part passes through the support seat, and the second nut is threaded with the second screw to fix the support seat, A pressing block is provided, the pressing block has a pressing surface and a resting surface, a through hole is provided on the side away from the resting surface, a threaded hole is provided on the support seat, and a third screw is provided to pass through the through hole and threadedly cooperate with the threaded hole.

Description

Lathe Fixtures for Machining Eccentric Hole Sleeves

technical field

The invention relates to an auxiliary device for drilling processing, in particular to a lathe fixture for processing eccentric hole bushings.

Background technique

The function of the fixture is to expand the process range of the machine tool, improve the working conditions, and improve the production efficiency. With the development of social science and technology, the function of machine tools has become more and more powerful, and the demand for fixtures has gradually decreased. However, as long as ordinary machine tools have not completely withdrawn from the wave of the times, many exclusive fixtures are still needed to expand their technological scope and processing efficiency. The eccentric hole of the eccentric bushing has always been a major problem for ordinary lathes. Although the eccentric position can be adjusted with gaskets during processing, it is cumbersome and slow in efficiency in large quantities.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a lathe fixture for machining eccentric hole bushings, which is used for setting on a lathe and machining the eccentric hole of the shaft piece by using a general lathe.

In order to achieve the above object, the present invention adopts the following technical solutions:

A lathe fixture for machining an eccentric hole bushing includes a base, the base has a mounting plate, a clamping shaft is vertically arranged on the mounting plate, and two mutually horizontal T-shaped grooves are arranged on the mounting plate. The slot is inverted and the upper end is open, extending from one side of the mounting plate to the other side, a V-shaped block is provided, the V-shaped block has a V-shaped groove for positioning, and two first screws are provided, which are located at different T In the groove, the big end of the first screw is inserted into the T-shaped groove, the rod part extends away from the clamping axis and passes through the V-shaped block, and the first nut and the first nut and the first nut are arranged on the side of the V-shaped block away from the base. A screw is threaded to fit and lock the V-shaped block, and a support seat is provided. The support seat is arranged on the opening direction side of the V-shaped groove and is opposite to the V-shaped block. Two second screws are provided, and the large ends of the second screws are inserted into the V-shaped block. to the T-shaped groove, the rod part passes through the support seat, and is threadedly matched with the second screw through the second nut to fix the support seat, and a pressure block is provided, the pressure block has a pressure surface parallel to the mounting plate and a pressure surface perpendicular to the pressure surface. The resting surface extending in the direction of the mounting plate is provided with a through hole on the side away from the resting surface, a threaded hole is provided on the support seat, and a third screw is provided to pass through the through hole and threadedly cooperate with the threaded hole.

On the basis of the above solution and as a preferred solution of the above solution, the sliding direction of the pressing block is perpendicular to the mounting plate and is slidably connected to the support base.

On the basis of the above scheme and as a preferred scheme of the above scheme: the support seat is provided with a dovetail groove perpendicular to the mounting plate, the pressure block is provided with a dovetail slide rail perpendicular to the pressing surface, and the dovetail slide rail is inserted into the It is slidably connected to it in the dovetail groove.

On the basis of the above solution and as a preferred solution of the above solution, the mounting plate is in the shape of a disc, and the clamping shaft is coaxial with the mounting plate.

On the basis of the above scheme and as a preferred scheme of the above scheme: the first screw or the second screw is a T-shaped screw.

On the basis of the above scheme and as a preferred scheme of the above scheme: the side of the support seat of the mounting plate is provided with an enclosure plate, and a fourth screw threadedly matched with the enclosure plate is arranged on the enclosure plate to pass through the enclosure plate and abut against it. Support base.

On the basis of the above scheme and as a preferred scheme of the above scheme: a detachable counterweight block is arranged on the V-shaped block direction side of the support plate, and a fifth screw threaded with the counterweight block is arranged to pass through the counterweight block and abut against the counterweight block. By V-block.

On the basis of the above solution and as a preferred solution of the above solution: the mounting plate is provided with a plurality of locking screw holes, and the locking screws are arranged to pass through the counterweight block to threadedly cooperate with the locking screw holes.

The beneficial effects of the present invention are:

The invention provides a lathe fixture for processing an eccentric hole bushing, which is used for setting on a lathe and using a general lathe to process the eccentric hole of a shaft piece.

The lathe fixture for processing the eccentric hole bushing of the invention can make the general lathe suitable for the eccentric hole processing, which is beneficial to realize the cost control of mass production, is convenient for clamping and has high efficiency.

This lathe fixture for processing eccentric hole bushings, wherein the clamping shaft is used to set on the lathe, clamped by the three-grip chuck on the main shaft of the lathe, and the workpiece to be processed is positioned through the V-shaped groove of the V-shaped block, and is pressed by pressing Auxiliary to the block for pinning. The fixing method is to achieve radial positioning of the workpiece to be processed through the face-to-face cooperation with the V-shaped groove, to accurately constrain the position of the eccentric hole, and to press the pressing surface on the end of the workpiece to secure the workpiece, constrain the depth, and prevent the workpiece from falling off and swinging. Precision machining.

The lathe fixture for processing eccentric hole bushings is flexible and suitable for eccentric hole processing of various specifications and positions. Specifically, the first screw and the second screw cooperate with the T-shaped slot, so that the V-shaped block and the support seat can move along the length of the T-shaped slot, and through this feature, a flexible feature suitable for multiple specifications and multiple positions is realized.

Description of drawings

1 is a schematic structural diagram of a lathe fixture for processing an eccentric hole bushing of the present invention;

FIG. 2 is a schematic diagram showing the disassembly of the lathe fixture for processing the eccentric hole bushing according to the present invention.

In the figure: base-1, mounting plate-2, clamping shaft-3, T-slot-4, V-block-5, V-slot-6, first screw-7, first nut-8, support Seat-9, second screw-10, second nut-11, pressure block-12, pressure surface-13, backing surface-14, third screw-15, dovetail groove-16, dovetail slide rail-17, enclosure Plate-18, fourth screw-19, counterweight-20, fifth screw-21, locking screw hole-22.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

1-2, a lathe fixture for processing eccentric hole bushings includes a base 1, the base 1 has a mounting plate 2, the mounting plate 2 is vertically provided with a clamping shaft 3, and the mounting plate 2 is provided with Two mutually horizontal T-shaped grooves 4, the T-shaped grooves 4 are inverted and the upper end is open, extending from one side of the mounting plate 2 to the other side, a V-shaped block 5 is provided, and the V-shaped block 5 has a position for positioning. The V-shaped groove 6 is provided with two first screws 7, which are located in different T-shaped grooves 4 respectively. And pass through the V-shaped block 5, and set a first nut 8 on the side of the V-shaped block 5 away from the base 1 to threadedly cooperate with the first screw 7 and lock the V-shaped block 5, and set a support seat 9, the support seat 9 The opening direction side of the V-shaped groove 6 is opposite to the V-shaped block 5, and two second screws 10 are provided. The second nut 11 is screwed with the second screw 10 to fix the support base 9, and a pressure block 12 is provided. The pressure block 12 has a pressure surface 13 parallel to the mounting plate 2 and a direction perpendicular to the pressure surface 13 to the mounting plate 2. The extended resting surface 14 is provided with a through hole on the side away from the resting surface 14 , a threaded hole is provided on the support base 9 , and a third screw 15 is provided to pass through the through hole and screw with the threaded hole. In addition, the first screw 7 or the second screw 10 is a T-shaped screw.

The lathe fixture for machining eccentric hole bushings, wherein the clamping shaft 3 is used to set on the lathe, clamped by the three-grip chuck on the main shaft of the lathe, and locates the workpiece to be processed through the V-shaped groove 6 of the V-shaped block 5, And it is fixed by the assistance of the pressing block 12 . The fixing method is to achieve radial positioning of the workpiece to be processed through the cooperation of the bearing surface 14 with the V-shaped groove 6 to precisely constrain the position of the eccentric hole. Swing to ensure precise machining. And it is suitable for eccentric hole processing of various specifications and positions. Specifically, through the cooperation of the first screw 7 and the second screw 8 with the T-shaped slot 4, the V-shaped block 5 and the support base 9 can be moved along the length direction of the T-shaped slot 4, and through this feature, multiple specifications and multiple specifications are realized. Location-applicable flex features.

For the convenience of operation, the sliding direction of the pressing block 12 is perpendicular to the mounting plate 2 and is slidably connected to the support base 9 . The support base 9 is provided with a dovetail groove 16 perpendicular to the mounting plate 2, and the pressure block 12 is provided with a dovetail slide rail 17 perpendicular to the pressing surface 13, the dovetail slide rail 17 is inserted into the dovetail groove 16 and slides with it connect. The sliding pressing block 12 can easily ensure that the pressing surface 13 and the resting surface 14 work in place.

In order to enhance the coaxiality between the overall center of the lathe fixture for machining the eccentric hole bushing and the clamping shaft 3 , the mounting plate 2 is arranged in a disc shape, and the clamping shaft 3 is coaxial with the mounting plate 2 .

A detachable counterweight 20 is provided on the side of the support plate in the direction of the V-shaped block 5 , and a fifth screw 21 threadedly matched with the counterweight block 20 is provided to pass through the counterweight block 20 and abut against the V-shaped block 5 . An enclosure plate 18 is arranged on the side of the mounting plate 2 in the direction of the support base 9 , and a fourth screw 19 threadedly matched with the enclosure plate 18 is arranged to pass through the enclosure plate 18 and abut against the support base 9 . The safety is further improved by the enclosure, so as to prevent the parts from falling off during the work and causing injury to the staff.

For the convenience of replacing and setting the counterweight block 20 of the corresponding specification as needed, the mounting plate 2 is provided with a plurality of locking screw holes 22, and the locking screw 23 is set to pass through the counterweight block 20 and the locking screw hole 22 thread. Cooperate.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (8)

1. A lathe fixture for processing an eccentric hole bushing, characterized in that it comprises a base (1), the base (1) is provided with a mounting plate (2), and a clamping shaft (3) is vertically arranged on the mounting plate (2). ), the mounting plate (2) is provided with two mutually horizontal T-shaped grooves (4), the T-shaped grooves (4) are inverted and the upper end is open, extending from one side of the mounting plate (2) to the other side Set up, set a V-shaped block (5), the V-shaped block (5) has a V-shaped groove (6) for positioning, and set two first screws (7), which are respectively located in different T-shaped grooves (4) , the big end of the first screw (7) is inserted into the T-shaped groove (4), and the rod portion extends away from the clamping shaft (3) and passes through the V-shaped block (5), and is inserted into the V-shaped block ( 5) On the side away from the base (1), a first nut (8) is arranged to threadedly cooperate with the first screw (7) to lock the V-block (5), and a support seat (9) is provided, and the support seat (9) Two second screws (10) are provided on the opening direction side of the V-shaped groove (6) opposite to the V-shaped block (5), and the large ends of the second screws (10) are inserted into the T-shaped groove (4) , the rod part passes through the support seat (9), and the second nut (11) is threaded with the second screw (10) to fix the support seat (9), and a pressure block (12) is provided, and the pressure block (12) It has a pressing surface (13) parallel to the mounting plate (2) and a resting surface (14) extending in the direction of the mounting plate (2) perpendicular to the pressing surface (13), and a through hole is provided on the side away from the resting surface (14). , a threaded hole is arranged on the support seat (9), and a third screw (15) is arranged to pass through the through hole and threadedly cooperate with the threaded hole. 2 . The lathe fixture for machining eccentric hole bushings according to claim 1 , wherein the sliding direction of the pressing block ( 12 ) is perpendicular to the mounting plate ( 2 ) and is slidably connected to the support seat ( 9 ). 3 . 3. The lathe fixture for machining eccentric hole bushings according to claim 2, wherein the support seat (9) is provided with a dovetail groove (16) perpendicular to the mounting plate (2). (12) is provided with a dovetail slide rail (17) perpendicular to the pressing surface (13), and the dovetail slide rail (17) is inserted into the dovetail groove (16) for sliding connection therewith. 4 . The lathe fixture for machining eccentric hole bushings according to claim 1 , wherein the mounting plate ( 2 ) is disc-shaped, and the clamping shaft ( 3 ) is coaxial with the mounting plate ( 2 ). 5 . . 5 . The lathe fixture for machining eccentric hole bushings according to claim 1 , wherein the first screw ( 7 ) or the second screw ( 10 ) is a T-shaped screw. 6 . 6 . The lathe fixture for machining eccentric hole bushings according to claim 1 , characterized in that, an enclosure baffle plate ( 18 ) is provided on the side of the support seat ( 9 ) of the mounting plate ( 2 ), and the enclosure baffle plate ( 18 ) is provided on the side of the support seat ( 9 ). The plate (18) is provided with a fourth screw (19) which is threadedly matched with the plate (18) and passes through the enclosure plate (18) and abuts against the support seat (9). 7 . The lathe fixture for machining eccentric hole bushings according to claim 1 , wherein a detachable counterweight ( 20 ) is provided on the V-shaped block ( 5 ) direction side of the support plate, and is provided with The fifth screw (21) with which the counterweight (20) is threadedly engaged passes through the counterweight (20) and abuts against the V-shaped block (5). 8 . The lathe fixture for machining eccentric hole bushings according to claim 7 , wherein the mounting plate ( 2 ) is provided with a plurality of locking screw holes ( 22 ), and is provided with locking screws ( 23 ). 9 . Pass through the counterweight block (20) and threadedly fit with the locking screw hole (22).

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