CN212976725U

CN212976725U - Lathe for precision machining

Info

Publication number: CN212976725U
Application number: CN202022060455.6U
Authority: CN
Inventors: 李小为; 孙小兵; 王伟涛; 胡波; 宋蕊
Original assignee: Luoyang Luozhou Die Manufacturing Co ltd
Current assignee: Luoyang Luozhou Die Manufacturing Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-16
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a lathe for precision finishing, which comprises a lathe, the lathe includes the lathe bed, fixedly connected with headstock and sliding connection have the sliding seat on the lathe bed, and a side of headstock is equipped with the three-jaw chuck, fixedly connected with tail-box on the sliding seat. The utility model has the advantages that: the one end of clamping part is come through the three-jaw chuck, the other end that makes the part through removing the movable seat inserts the inside of connecting box through leading to the groove, the one end extrusion push rod of part is under the mating reaction of boot and two connecting box internal mechanism, two grip blocks of the fixed incasement portion of drive are close to each other, thereby come to carry out the centre gripping to the other end of part through two grip blocks, be convenient for the part by the in-process of grip block centre gripping rotate through setting up the gyro wheel, the device has avoided the part to receive the cutter influence and produce the problem of rocking in the course of working, thereby improved the precision when adding man-hour to the part, the disqualification rate of part production has been reduced.

Description

Lathe for precision machining

Technical Field

The utility model relates to a lathe processing technology field, especially a lathe for precision finishing.

Background

The lathe is a machine tool for turning a rotating workpiece mainly by a lathe tool, and can perform corresponding processing on the lathe by a drill, a reamer, a tap, a die, a knurling tool and the like. The lathe can also be used for corresponding processing by using a drill bit, a reamer, a screw tap, a die, a knurling tool and the like.

When a rod-shaped workpiece is machined by an existing lathe, one end of the rod-shaped workpiece is clamped by a chuck, the other end of the rod-shaped workpiece is propped by an ejector rod, and the workpiece is likely to shake due to impact of a cutter in the middle of the rod-shaped workpiece in the machining process, so that machining size accuracy is affected, and the reject ratio of the workpiece is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a lathe for precision finishing.

The purpose of the utility model is realized through the following technical scheme: a lathe for precision machining comprises a lathe body, wherein the lathe body is fixedly connected with a spindle box and a movable seat in a sliding mode, a three-jaw chuck is arranged on one side face of the spindle box, a tail box is fixedly connected onto the movable seat, one end, close to the three-jaw chuck, of the tail box is fixedly connected with a fixed box, two connecting boxes are fixedly connected onto the tail box and communicated with the fixed box, a sliding rod is fixedly connected onto the inner side wall of the tail box, a push rod is slidably connected onto the sliding rod, two extrusion rods are arranged on the inner wall of the tail box and penetrate through the inner wall of the tail box and the outer portions of the connecting boxes and extend into the two connecting boxes, through grooves are formed in the top and the bottom of the fixed box, two symmetrical clamping blocks are arranged inside the fixed box, two sliding blocks are fixedly connected onto each clamping block, two sliding grooves are formed in the fixed box, and are respectively slidably connected into the two sliding grooves, the equal fixedly connected with connecting rod in a side that two grip blocks kept away from each other, the side that two grip blocks are close to each other all rotates and is connected with the gyro wheel.

A further technical scheme is, two extrusion blocks of fixedly connected with on the push rod, the equal fixedly connected with pulley of one end that two extrusion poles are close to each other, two pulleys contact with the push rod, the equal fixedly connected with fixing base of inside wall of every connecting box, the one end that two fixing bases were kept away from each other all articulates through the round pin axle has the swinging arms, the both ends of every swinging arms all articulate through the round pin axle has the ejector pin, two connecting rods are articulated mutually through the round pin axle with two ejector pins, the one end fixedly connected with round pin axle bed that two extrusion poles were kept away from each other, two round pin axle beds are articulated mutually through the round.

According to a further technical scheme, each extrusion rod is sleeved with a second spring, and each extrusion rod is fixedly connected with a baffle.

A further technical scheme is that one end, close to the sliding rod, of the push rod is fixedly connected with a first spring, and the first spring is sleeved on the sliding rod.

According to a further technical scheme, a first bearing seat is fixedly connected to one side face of the spindle box, a second bearing seat is fixedly connected to the lathe body, a screw rod is rotatably connected between the first bearing seat and the second bearing seat, and the movable seat is in threaded connection with the screw rod.

A hand wheel is fixedly connected to one end, far away from the first bearing seat, of the screw.

Compared with the prior art, the beneficial effects of the utility model are one of following at least:

1. the utility model discloses a three-jaw chuck comes the one end of clamping part, the other end that makes the part through removing the sliding seat inserts the inside of connecting box through leading to the groove, the one end extrusion push rod of part is under the mating reaction of tail-box and two connecting box internal mechanism, two grip blocks of drive fixed incasement portion are close to each other, thereby carry out the centre gripping to the other end of part through two grip blocks, the part is convenient for by the in-process of grip block centre gripping rotate through setting up the gyro wheel, the device has avoided the part to receive the cutter influence and produce the problem of rocking in the course of working, thereby improved the precision of adding man-hour to the part, the disqualification rate of part production has been reduced.

2. The utility model discloses an extrusion push rod is when sliding to the inside of tail-box, make two extrusion stems push into the inside of two connecting boxes through two extrusion blocks extrusion, at the fixing base, under the effect of swinging arms and ejector pin, promote two grip blocks and be close to each other, come to carry out the centre gripping to the part that stretches into fixed incasement portion through two grip blocks, when the one end of extrusion stem is not atress, kick-back through the second spring drives the extrusion stem fast and removes and reset, when the one end of push rod is not atress, kick-back through first spring drives the push rod fast and removes and reset, hand wheel through rotating screw rod one end, be convenient for drive activity seat is close to three-jaw chuck department.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic view of the structure of the tail box of the present invention.

Fig. 3 is the structure schematic diagram of the fixing box and the connecting box of the present invention.

Fig. 4 is a cross-sectional view of the fixing box of the present invention.

In the figure, 1, a lathe; 101. a bed body; 2. a main spindle box; 3. a movable seat; 4. a three-jaw chuck; 5. a tail box; 6. a fixed box; 601. a through groove; 602. a chute; 7. a connecting box; 8. a slide bar; 9. a push rod; 10. an extrusion stem; 11. a clamping block; 12. a slider; 13. a connecting rod; 14. extruding the block; 15. a pulley; 16. a fixed seat; 17. a swing lever; 18. a top rod; 19. a pin shaft seat; 20. a first spring; 21. a second spring; 22. a baffle plate; 23. a screw; 24. a first bearing housing; 25. a second bearing housing; 26. and a roller.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

embodiment 1 referring to an embodiment shown in fig. 1-4, a lathe for precision machining includes a lathe 1, the lathe 1 includes a lathe bed 101, a headstock 2 and a movable seat 3 are fixedly connected to the lathe bed 101, a three-jaw chuck 4 is disposed on one side surface of the headstock 2, a tail box 5 is fixedly connected to the movable seat 3, a fixed box 6 is fixedly connected to one end of the tail box 5 close to the three-jaw chuck 4, two connecting boxes 7 are fixedly connected to the tail box 5, the two connecting boxes 7 are communicated with the fixed box 6, a slide rod 8 is fixedly connected to an inner side wall of the tail box 5, a push rod 9 is slidably connected to the slide rod 8, two extrusion rods 10 are disposed on an inner wall of the tail box 5, the two extrusion rods 10 penetrate through the inner wall of the tail box 5 and the outer portions of the connecting boxes 7 and extend into the inner portions of the two connecting boxes 7, through grooves 601 are disposed on the top and bottom of the fixed box 6, two symmetrical clamping blocks 11 are disposed inside, two sliders 12 of equal fixedly connected with on every grip block 11, two sets of spouts 602 have been seted up to the inside of fixed case 6, and two sets of sliders 12 are sliding connection respectively in the inside of two sets of spouts 602, and the equal fixedly connected with connecting rod 13 of a side that two grip blocks 11 kept away from each other, the side that two grip blocks 11 are close to each other all rotates and is connected with gyro wheel 26.

Example 2:

on the basis of the above embodiment, in embodiment 2, referring to an embodiment shown in fig. 2 and 3, two extrusion blocks 14 are fixedly connected to a push rod 9, pulleys 15 are fixedly connected to ends of two extrusion rods 10 close to each other, two pulleys 15 contact with the push rod 9, a fixed seat 16 is fixedly connected to an inner side wall of each connection box 7, an end of each fixed seat 16 far away from each other is hinged to a swing rod 17 through a pin shaft, two ends of each swing rod 17 are hinged to a top rod 18 through a pin shaft, two connecting rods 13 are hinged to two top rods 18 through a pin shaft, a pin shaft seat 19 is fixedly connected to an end of each extrusion rod 10 far away from each other, two pin shaft seats 19 are hinged to two top rods 18 through a pin shaft, when the extrusion push rod 9 slides towards the inside of the tail box 5, the two extrusion rods 10 are extruded by the extrusion blocks 14 to push the two extrusion rods 10 into the inside of the two connection boxes 7, under the action of the fixed seat 16, the swinging rod 17 and the ejector rod 18, the two clamping blocks 11 are pushed to be close to each other, and parts extending into the fixed box 6 are clamped through the two clamping blocks 11.

Example 3:

on the basis of the above embodiments, in embodiment 3, referring to an embodiment shown in fig. 2, each extrusion rod 10 is sleeved with a second spring 21, each extrusion rod 10 is fixedly connected with a baffle 22, and when one end of each extrusion rod 10 is not stressed, the extrusion rod 10 is rapidly driven to move and reset through the resilience of the second spring 21.

Example 4:

on the basis of the above embodiments, in embodiment 4, referring to an embodiment shown in fig. 2, one end of the push rod 9 close to the slide rod 8 is fixedly connected with a first spring 20, the first spring 20 is sleeved on the slide rod 8, and when one end of the push rod 9 is not stressed, the push rod 9 is rapidly driven to move and reset by the resilience of the first spring 20.

Example 5:

on the basis of the above embodiments, in embodiment 5, referring to an embodiment shown in fig. 1, a first bearing seat 24 is fixedly connected to one side surface of the spindle box 2, a second bearing seat 25 is fixedly connected to the machine body 101, a screw 23 is rotatably connected between the first bearing seat 24 and the second bearing seat 25, the movable seat 3 is in threaded connection with the screw 23, a hand wheel is fixedly connected to one end of the screw 23, which is far away from the first bearing seat 24, and the movable seat 3 is conveniently driven to approach the three-jaw chuck 4 by rotating a handle at one end of the screw 23.

The working process of the utility model is as follows: one end of a part is fixed on a three-jaw chuck 4, a hand wheel at one end of a screw 23 is rotated to drive a movable seat 3 to approach the three-jaw chuck 4, the other end of the part is inserted into a tail box 5 through a through groove 601, when one end of the part extrudes a push rod 9 to slide towards the inside of the tail box 5, two extrusion rods 10 are extruded through an extrusion block 14 to push the two extrusion rods 10 into the inside of two connecting boxes 7, one end of a swinging rod 17 is extruded through the extrusion rods 10 to tilt, the other end of the swinging rod 17 is pressed downwards, two clamping blocks 11 are pushed to approach each other through the connection action of an ejector rod 18 and a connecting rod 13, the other end of the part is clamped through the two clamping blocks 11, the part is convenient to rotate in the process of being clamped by the clamping blocks 11 through the arrangement of a roller 26, and the device avoids the problem that the part is affected by a cutter to generate shaking in the, therefore, the precision of the part processing is improved, and the reject ratio of the part production is reduced.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A lathe for precision machining, comprising a lathe (1), characterized in that: the lathe (1) comprises a lathe body (101), a spindle box (2) and a movable seat (3) are fixedly connected to the lathe body (101), a three-jaw chuck (4) is arranged on one side face of the spindle box (2), a tail box (5) is fixedly connected to the movable seat (3), a fixed box (6) is fixedly connected to one end, close to the three-jaw chuck (4), of the tail box (5), two connecting boxes (7) are fixedly connected to the tail box (5), the two connecting boxes (7) are communicated with the fixed box (6), a sliding rod (8) is fixedly connected to the inner side wall of the tail box (5), a push rod (9) is slidably connected to the sliding rod (8), two extrusion rods (10) are arranged on the inner wall of the tail box (5), the two extrusion rods (10) penetrate through the inner wall of the tail box (5) and the outer portion of the connecting boxes (7) and extend into the inner portions of the two connecting boxes (7), through grooves (601) are formed in the, the inside of tight box (6) is equipped with two symmetrical grip blocks (11), two sliders (12) of equal fixedly connected with on every grip block (11), two sets of spout (602) have been seted up to the inside of tight box (6), two sets of slider (12) are sliding connection respectively in the inside of two sets of spout (602), the equal fixedly connected with connecting rod (13) of a side that two grip blocks (11) kept away from each other, a side that two grip blocks (11) are close to each other all rotates and is connected with gyro wheel (26).

2. A lathe for precision machining according to claim 1, wherein: two extrusion blocks (14) of fixedly connected with on push rod (9), the equal fixedly connected with pulley (15) of one end that two extrusion poles (10) are close to each other, two pulley (15) contact with push rod (9), the equal fixedly connected with fixing base (16) of inside wall of every connecting box (7), the one end that two fixing base (16) kept away from each other all articulates through the round pin axle has swinging arms (17), the both ends of every swinging arms (17) all articulate through the round pin axle has ejector pin (18), two connecting rod (13) are articulated mutually through the round pin axle with two ejector pin (18), the one end fixedly connected with round pin axle seat (19) that two extrusion poles (10) kept away from each other, two round pin axle seats (19) are articulated mutually through the round pin axle with two ejector pin (18.

3. A lathe for precision machining according to claim 1, wherein: each extrusion rod (10) is sleeved with a second spring (21), and each extrusion rod (10) is fixedly connected with a baffle (22).

4. A lathe for precision machining according to claim 1, wherein: one end of the push rod (9) close to the slide rod (8) is fixedly connected with a first spring (20), and the first spring (20) is sleeved on the slide rod (8).

5. A lathe for precision machining according to claim 1, wherein: one side face of the spindle box (2) is fixedly connected with a first bearing seat (24), the lathe bed (101) is fixedly connected with a second bearing seat (25), a screw rod (23) is rotatably connected between the first bearing seat (24) and the second bearing seat (25), and the movable seat (3) is in threaded connection with the screw rod (23).

6. A lathe for precision machining according to claim 5, wherein: and a hand wheel is fixedly connected to one end, far away from the first bearing seat (24), of the screw rod (23).