CN215392544U

CN215392544U - Positioning tool for horizontal machining center

Info

Publication number: CN215392544U
Application number: CN202121561620.4U
Authority: CN
Inventors: 王海兵
Original assignee: Jiangsu Hongli Cnc Machine Tool Co ltd
Current assignee: Jiangsu Hongli Cnc Machine Tool Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-01-04
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a positioning tool for a horizontal machining center, which comprises a cushion block, wherein the cushion block is fixedly arranged at the top of a horizontal base, one side of an L-shaped plate is clamped with a spindle chuck, the L-shaped plate is connected with a second clamp in a sliding manner, the top of the cushion block is connected with a first clamp in a sliding manner, the L-shaped plate is clamped on the spindle chuck during machining, the cushion block is fixedly arranged at the top of the horizontal base to ensure that the horizontal base is positioned on the same plane, one side of a crankshaft is fixed on a three-jaw chuck at the moment, the center of the other side of the crankshaft is abutted against an ejector pin, so that the spindle chuck, the ejector pin and a rotating shaft at one side of the crankshaft are positioned on the same straight line, a lathe is started to complete the turning machining of the rotating shaft at one side of the crankshaft, the whole clamp is driven by a motor to enable the crankshaft to translate towards the other side, and then the crankshaft at the other side is machined, the clamping is realized once, the clamping times are reduced by moving the workpiece, and the crankshaft turning precision is improved.

Description

Positioning tool for horizontal machining center

Technical Field

The utility model relates to the technical field of clamps, in particular to a positioning tool for a horizontal machining center.

Background

When crankshaft parts are machined on a lathe, the crankshaft parts are usually required to be disassembled and assembled once due to the fact that the shafts are not concentric, and machining precision is greatly influenced.

The utility model patent with patent publication number CN111745444A provides a crankshaft machining fixture, which comprises a supporting seat and a positioning and clamping mechanism arranged on the supporting seat for positioning and clamping a crankshaft, wherein a stock frame assembly is arranged on the supporting seat, a machining position corresponding to the crankshaft to be machined and an unloading position for placing the machined crankshaft are arranged on the stock frame assembly, and a driving mechanism for driving the machined crankshaft to move from the machining position to the unloading position of the stock frame assembly is further arranged on the supporting seat.

Because the setting of location clamping mechanism carries on spacingly to the axial and the circumference position of processing bent axle among the above-mentioned scheme, rotate in avoiding bent axle course of working, beat and at axial displacement, guaranteed bent axle centre gripping stability. Due to the arrangement of the material rack assembly and the material rack driving mechanism, the working efficiency is improved, and the clamp cannot complete machining by one-time clamping.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide a positioning tool for a horizontal machining center, so as to achieve the following technical effects:

and one-time clamping is carried out, when the machining of one side shaft is finished, the workpiece can be moved, and the machining of the other side shaft is finished.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a location frock for horizontal machining center, includes the cushion, cushion fixed mounting is at the top of horizontal base, looks joint between one side of "L" shaped plate and the main shaft chuck, sliding connection has anchor clamps two on the "L" shaped plate, the top sliding connection of cushion has anchor clamps one.

As a further scheme of the utility model: and a positioning shaft is fixedly connected to one side of the L-shaped plate, the positioning shaft is clamped in the spindle chuck, and a rack is fixedly connected to the top of the other side of the L-shaped plate.

As a further scheme of the utility model: the second clamp comprises a box body, a motor is fixedly connected to one side of the inside of the box body, a chain wheel II is fixedly connected to an output shaft of the motor, a rotating shaft is rotatably connected to the other side of the inside of the box body, a chain wheel I and a driving wheel are fixedly connected to the rotating shaft, a chain is sleeved on the chain wheel I and the chain wheel II, the lower end of the driving wheel extends to the outer side of the box body, the driving wheel and the rack are meshed with each other, and a three-jaw chuck is fixedly connected to one side of the box body.

As a further scheme of the utility model: the fixture comprises a base, wherein the bottom of the base is in sliding connection with the top of the cushion block, the bottom of the base is connected with the slide rail in a clamped mode, a rotating block is rotatably connected to the base, and an ejector pin is fixedly connected to one side of the rotating block close to a spindle chuck.

As a further scheme of the utility model: the center positions of the spindle chuck, the three-jaw chuck and the thimble are all on the same plane.

The utility model has the beneficial effects that:

when processing, the L-shaped plate is clamped on the spindle chuck, the cushion block is fixedly installed at the top of the horizontal base, the horizontal base is ensured to be located on the same plane, one side of the crankshaft is fixed on the three-jaw chuck at the moment, the center of the other side of the crankshaft is abutted to the ejector pin, so that the spindle chuck, the ejector pin and the rotating shaft of one side of the crankshaft are located on the same straight line, a lathe is started, the turning processing of the rotating shaft of one side of the crankshaft is completed, the whole fixture II is driven to translate towards the other side through the motor, meanwhile, the fixture I translates on the cushion block, the crankshaft on the other side is processed, one-time clamping is realized, the processing of the shaft on the other side is completed through moving a workpiece, the clamping frequency is reduced, and the crankshaft turning processing precision is improved.

Drawings

The utility model will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a clamp construction of the present invention;

FIG. 3 is a schematic view of the internal structure of the second clamp of the present invention;

FIG. 4 is a schematic view of the "L" shaped plate connection of the present invention.

In the figure: 1. a horizontal base; 2. cushion blocks; 201. a slide rail; 3. a first clamp; 301. a base; 302. a thimble; 303. rotating the block; 4. a second clamp; 401. a first chain wheel; 402. a drive wheel; 403. a rotating shaft; 404. a chain; 405. a motor; 406. a box body; 407. a second chain wheel; 408. a three-jaw chuck; 5. an "L" shaped plate; 501. positioning the shaft; 502. a rack; 6. a spindle chuck.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the utility model relates to a positioning tool for a horizontal machining center, which comprises a cushion block 2, wherein the cushion block 2 is fixedly installed at the top of a horizontal base 1, one side of an L-shaped plate 5 is clamped with a spindle chuck 6, the L-shaped plate 5 is slidably connected with a clamp II 4, and the top of the cushion block 2 is slidably connected with a clamp I3.

One side of the L-shaped plate 5 is fixedly connected with a positioning shaft 501, the positioning shaft 501 is clamped in the spindle chuck 6, the other side of the L-shaped plate 5 is fixedly connected with a rack 502, and when the L-shaped plate 5 rotates, the L-shaped plate does not contact with the top of the horizontal base 1.

The second clamp 4 comprises a box body 406, a motor 405 is fixedly connected to one side inside the box body 406, a second chain wheel 407 is fixedly connected to an output shaft of the motor 405, a rotating shaft 403 is rotatably connected to the other side inside the box body 406, a first chain wheel 401 and a driving wheel 402 are fixedly connected to the rotating shaft 403, a chain 404 is sleeved on the first chain wheel 401 and the second chain wheel 407, the lower end of the driving wheel 402 extends to the outer side of the box body 406, the driving wheel 402 is meshed with the rack 502, the motor 405 is started to drive the second chain wheel 407 to rotate, the rotating shaft 403 is driven to rotate through the first chain wheel 401 through transmission of the chain 404, the driving wheel 402 is finally rotated, the second clamp 4 drives the other side of the crankshaft to translate, and a three-jaw chuck 408 is fixedly connected to one side of the box body 406.

Top intermediate position fixedly connected with slide rail 201 of cushion 2, anchor clamps 3 include base 301, sliding connection between the bottom of base 301 and the top of cushion 2, the bottom and the slide rail 201 looks joint of base 301, swivelling joint has rotatory piece 303 in the base 301, rotatory piece 303 leans on main shaft chuck 6 one side fixedly connected with thimble 302, is convenient for find the central point of bent axle both sides pivot, and bent axle and main shaft chuck 6, three-jaw chuck 408 of being convenient for are fixed a position.

The center positions of the spindle chuck 6, the three-jaw chuck 408 and the thimble 302 are all on the same plane, so that the rotating shafts on two sides can be machined after the spindle chuck is moved transversely.

The working principle is as follows:

1. clamping an L-shaped plate 5 on a spindle chuck 6, fixedly installing a cushion block 2 on the top of a horizontal base 1 to ensure that the horizontal base 1 is positioned on the same plane, fixing one side of a crankshaft on a three-jaw chuck 408 at the moment, abutting the center of the other side of the crankshaft with a thimble 302, and finishing the clamping at the moment;

2. enabling the spindle chuck 6, the thimble 302 and a rotating shaft at one side of the crankshaft to be positioned on the same straight line by means of a measuring tool, and starting a lathe to complete turning of the rotating shaft at one side of the crankshaft;

3. after the machining is finished, the motor 405 is started to drive the second chain wheel 407 to rotate, the first chain wheel 401 drives the rotating shaft 403 to rotate through the transmission of the chain 404, and finally the driving wheel 402 rotates, so that the second clamp 4 drives the crankshaft to translate towards the other side, and meanwhile, the first clamp 3 translates on the cushion block 2 to ensure that the crankshaft does not incline;

4. and then the main shaft chuck 6, the thimble 302 and the rotating shaft at the other side of the crankshaft are on the same straight line, so as to complete the turning processing of the rotating shaft at the other side of the crankshaft.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a location frock for horizontal machining center, includes: cushion (2), cushion (2) fixed mounting is at the top of a horizontal base (1), its characterized in that:

the top of the cushion block (2) is connected with the first clamp (3) in a sliding manner;

the L-shaped plate (5), one side of the L-shaped plate (5) is clamped with the spindle chuck (6);

the second clamp (4) is connected onto the L-shaped plate (5) in a sliding manner;

the top of one side of the L-shaped plate (5) is fixedly connected with a rack (502) which is linked with the second clamp (4).

2. The positioning tool for the horizontal machining center according to claim 1, wherein a positioning shaft (501) is fixedly connected to one side of the L-shaped plate (5), and the positioning shaft (501) is clamped in a spindle chuck (6).

3. The positioning tool for the horizontal machining center according to claim 1, wherein the second clamp (4) comprises a box body (406), a motor (405) is fixedly connected to one side of the interior of the box body (406), a second chain wheel (407) is fixedly connected to an output shaft of the motor (405), a rotating shaft (403) is rotatably connected to the other side of the interior of the box body (406), a first chain wheel (401) and a driving wheel (402) are fixedly connected to the rotating shaft (403), and a chain (404) is sleeved on the first chain wheel (401) and the second chain wheel (407).

4. The positioning tool for the horizontal machining center according to claim 3, wherein the lower end of the driving wheel (402) extends to the outer side of the box body (406), and the driving wheel (402) is meshed with the rack (502).

5. The positioning tool for the horizontal machining center according to claim 3, wherein a three-jaw chuck (408) is fixedly connected to one side of the box body (406).

6. The positioning tool for the horizontal machining center according to claim 1, characterized in that a slide rail (201) is fixedly connected to the middle position of the top of the cushion block (2), the first clamp (3) comprises a base (301), the bottom of the base (301) is slidably connected with the top of the cushion block (2), and the bottom of the base (301) is clamped with the slide rail (201).

7. The positioning tool for the horizontal machining center according to claim 6, wherein a rotating block (303) is rotatably connected to the base (301), and an ejector pin (302) is fixedly connected to one side of the rotating block (303) close to the spindle chuck (6).

8. The positioning tool for the horizontal machining center according to claim 7, wherein the center positions of the spindle chuck (6), the three-jaw chuck (408) and the ejector pin (302) are all on the same plane.