CN221047908U

CN221047908U - Workpiece position calibration device

Info

Publication number: CN221047908U
Application number: CN202322959936.4U
Authority: CN
Inventors: 刘彬
Original assignee: Wuhan Changhe Amestra Machinery Co ltd
Current assignee: Wuhan Changhe Amestra Machinery Co ltd
Priority date: 2023-11-02
Filing date: 2023-11-02
Publication date: 2024-05-31
Anticipated expiration: 2033-11-02

Abstract

The utility model provides a workpiece position calibration device, which comprises a processing table and a workpiece main body, wherein a bearing frame and a supporting rack are respectively arranged on two sides of the top surface of the processing table, a hoisting guide rail is arranged on the top surface of the bearing frame, a guide cylinder is arranged at one end of the hoisting guide rail, a guide slide seat is connected with the output end of the guide cylinder, a laser range finder is arranged on the bottom surface of the guide slide seat, a driving motor is arranged on one side of the surface of the bearing frame, a tripod chuck is arranged on the output shaft of the driving motor, the surface of the tripod chuck is provided with the workpiece main body, the hoisting guide rail is matched with the guide cylinder to be connected with the laser range finder to horizontally move for detecting the distance of the surface of the workpiece main body, the driving motor is rotated to drive the workpiece main body to rotate while the hoisting guide rail is moved, the axis position of the surface of the workpiece main body is detected by the laser range finder, the coaxial calibration of the workpiece main body and the tripod chuck is facilitated, the workpiece main body is prevented from shifting before processing, and the processing loss of the workpiece main body can be effectively reduced after the coaxial calibration.

Description

Workpiece position calibration device

Technical Field

The utility model relates to the technical field of numerically controlled lathes, in particular to a workpiece position calibration device.

Background

An apparatus for calibrating a non-falling wheelset lathe without a calibration wheelset according to chinese patent No. CN111356547a, comprising: a motor having a rotation axis, a friction roller and a measuring bridge, wherein the friction roller is connected to a drive shaft of the motor. In order to achieve a simpler calibration without a calibration wheel set, it is proposed to provide the friction roller with an approximately cylindrical friction surface having a defined nominal diameter. The invention also relates to a non-drop wheelset lathe with such a device and to a method for calibrating a non-drop wheelset lathe.

When the workpiece is machined by the digital lathe in the comparison document and the prior art, the workpiece is generally directly connected with the surface of the chuck, manual coaxial calibration is carried out when manual clamping is adopted, the calibration precision is not high, the axis calibration during workpiece installation cannot be carried out, and the surface loss of the workpiece is large during machining.

Disclosure of utility model

The utility model aims to solve the defect that the clamping axis of a workpiece cannot be calibrated in the prior art, so that the loss is large in the surface processing of the workpiece, and provides a workpiece position calibration device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a work piece position calibration device, includes processing platform and work piece main part, processing platform top surface both sides are equipped with bearing frame and supporting bench respectively, the bearing frame top surface is equipped with the hoist and mount guide rail, hoist and mount guide rail one end is equipped with the direction cylinder, the output connection of direction cylinder is equipped with the direction slide, the direction slide bottom surface is equipped with laser range finder, bearing frame surface one side is equipped with driving motor, driving motor's output shaft is equipped with the tripod chuck, tripod chuck surface connection is equipped with the work piece main part, driving motor and direction cylinder electric connection.

Preferably, the front surface of the support rack is bolted with a display panel, the surface of the display panel is provided with a regulating switch, and the regulating switch is electrically connected with the driving motor and the guide cylinder.

Preferably, the two sides of the bottom surface of the hoisting guide rail are respectively bolted with a bearing frame, one side of the bottom surface of the bearing frame is bolted with the top surface of the processing table, and the other side of the bottom surface of the bearing frame is bolted with the top surface of the supporting table.

Preferably, positioning support legs are distributed on the circumference of the surface of the tripod chuck, the edges of the positioning support legs are hinged with the surface of the tripod chuck, and the surfaces of the positioning support legs are propped against the surface of the workpiece main body.

Preferably, the horizontal center line of the driving motor and the horizontal center line of the tripod chuck are mutually overlapped, and the horizontal center line of the top surface of the driving motor and the horizontal center line of the top surface of the laser range finder are overlapped.

Preferably, the edges of the surfaces of the tripod chucks are rounded, and the surfaces of the positioning support legs are coated with a silica gel coating.

Preferably, the guide slide and the hoisting guide rail are in clearance fit, the cross section of the side surface of the guide slide is T-shaped, and the bottom surface of the guide slide is connected with the top surface of the laser range finder through screws.

Advantageous effects

According to the utility model, the top surface of the processing table is connected with the workpiece main body through the three-leg chuck by the driving motor, the lifting guide rail is matched with the guiding cylinder to be connected with the laser range finder for horizontally moving so as to detect the distance of the surface of the workpiece main body, the driving motor is rotated to drive the workpiece main body to rotate while moving, the axis position of the surface of the workpiece main body is detected by the laser range finder, so that the coaxial alignment of the workpiece main body and the three-leg chuck is facilitated, the workpiece main body is prevented from shifting before processing, and the processing loss of the workpiece main body can be effectively reduced after the coaxial alignment.

Drawings

FIG. 1 is a perspective view of a workpiece position calibration device of the present utility model;

FIG. 2 is an isometric view of a workpiece position calibration device of the present utility model;

FIG. 3 is a front view of a workpiece position calibration device of the present utility model;

fig. 4 is a front cross-sectional view of a workpiece position calibration device of the present utility model.

Legend description:

1. A processing table; 2. a bearing frame; 3. hoisting the guide rail; 4. a guide cylinder; 5. a guide slide; 6. a laser range finder; 7. a support stand; 8. a driving motor; 9. a tripod chuck; 10. positioning support legs; 11. a workpiece body; 12. a display panel; 13. and (5) regulating and controlling a switch.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.

Specific embodiments of the present utility model are described below with reference to the accompanying drawings.

First embodiment:

Referring to fig. 1-4, this embodiment provides a workpiece position calibration device, including processing platform 1, processing platform 1 top surface both sides are equipped with bearing frame 2 and supporting bench 7 respectively, and the bearing frame 2 top surface is equipped with hoist and mount guide rail 3, and hoist and mount guide rail 3 one end is equipped with direction cylinder 4, and the output connection of direction cylinder 4 is equipped with direction slide 5, and direction slide 5 bottom surface is equipped with laser range finder 6, and bearing frame 2 surface one side is equipped with driving motor 8, and driving motor 8's output shaft is equipped with tripod chuck 9, and tripod chuck 9 surface connection is equipped with workpiece body 11, driving motor 8 and direction cylinder 4 electric connection.

When the workpiece main body 11 is connected with the tripod chuck 9 before machining, if the clamping position deviates, the workpiece main body loss is larger when the surface of the workpiece main body 11 is machined by a numerical control machine tool, if the workpiece main body 11 and the tripod chuck 9 are coaxial when the workpiece main body 11 and the tripod chuck 9 are ensured to be coaxial during clamping, the workpiece main body 11 loss during machining is reduced, and therefore the clamping axis of the workpiece main body 11 is required to be measured.

Therefore, the calibrating device in this embodiment is mainly used for determining whether the workpiece main body 11 and the position connected by the tripod chuck 9 are coaxial, the workpiece main body 11 is clamped on the surface of the tripod chuck 9, the guiding cylinder 4 keeps the movable end contracted at the vertical top position of the tripod chuck 9, the end part of the laser range finder 6 is positioned at the top of the tripod chuck 9, at this time, the movable end of the guiding cylinder 4 stretches, the guiding slide seat 5 drives the laser range finder 6 to move, the laser range finder 6 moves to the other end along one end of the workpiece main body 11, then the output shaft of the driving motor 8 rotates by a designated angle, the laser range finder 6 returns and moves along the path, at this time, the laser range finder 6 performs distance measurement on the surface of the rotated workpiece main body 11, the driving motor 8 sequentially reciprocates the laser range finder 6, and the driving motor 8 rotates along with the suitability angle until the laser range finder 6 completes sequential measurement on the circumference of the surface of the workpiece main body 11.

Further, the judgment of the axis is performed according to the measured distances between different positions in the unified plane, if there is no obvious difference in the distances between the fixed points in the same circular plane, the axis is accurate, and if there is a clear point distance difference, it is indicated that the point is concave or convex, and the axis needs to be adjusted according to the distance difference position.

Specific embodiment II:

The difference between this embodiment and the first embodiment is that, in order to increase the display and control of the ranging result of the laser ranging device 6, the front surface of the supporting bench 7 is bolted with a display panel 12, the surface of the display panel 12 is provided with a regulating switch 13, the regulating switch 13 is electrically connected with the driving motor 8 and the guiding cylinder 4, the regulating switch 13 is used for controlling the extension distance and opening and closing of the guiding cylinder 4, and simultaneously controlling the opening and closing and rotation angle of the driving motor 8, so that the distance between the workpiece and the surface of the workpiece main body 11 is convenient to determine.

Simultaneously, the both sides of hoist and mount guide rail 3 bottom surface are bolted respectively and are equipped with bearing frame 2, and bearing frame 2 bottom surface one side is bolted with processing platform 1 top surface, opposite side and support rack 7 top surface bolt to keep hoist and mount guide rail 3's stability.

Further, the circumference distribution of tripod chuck 9 surface is equipped with location stabilizer blade 10, location stabilizer blade 10 edge and tripod chuck 9 surface hinge, location stabilizer blade 10 surface offsets with work piece main part 11 surface, be convenient for carry out the centre gripping to work piece main part 11, keep the stability of work piece main part 11 centre gripping, prevent to drop, and the horizontal central line of driving motor 8 coincides with the horizontal central line of tripod chuck 9 each other, the horizontal central line of top surface of driving motor 8 coincides with the horizontal central line of the top surface of laser range finder 6, tripod chuck 9 surface edge adopts the fillet processing, location stabilizer blade 10 surface coating is equipped with the silica gel coating, direction slide 5 and hoist and mount guide rail 3 clearance fit, and direction slide 5 side cross-section is T, direction slide 5 bottom surface and laser range finder 6 top surface screw connection.

Third embodiment:

Referring to fig. 1-4, the laser distance meter 6 is a product of the prior art, so that the laser type and the distance measuring mode adopted in the laser distance meter 6 can be set according to the prior art on the premise that the surface of the workpiece main body 11 can be measured.

When the specific distance measurement is performed, for example, three plane positions in the horizontal directions A, B and C of the surface of the workpiece main body 11 are measured, since most of the workpiece main body 11 is a revolution body, the side sections corresponding to A, B and C positions are three sections, and the point measurement is performed once for the plane surface without 90 degrees, so that the point measurement for the plane A is sequentially A1, A2, A3 and A4, the corresponding distance lengths are sequentially L1, L2, L3 and L4, if the numerical value difference among L1, L2, L3 and L4 is not large, the axis of the position in the specification is correct, if obvious position difference appears, the position is indicated to be convex or concave, the distance measurement is sequentially performed for the plane B and the plane C, and the distances of the same points of the adjacent sides, such as the distance difference among A1, B1 and C1, are set, so that the measurement of the whole surface of the workpiece main body 11 is performed, and the judgment of the coaxial line is facilitated.

In summary, the top surface of the processing table 1 is connected with the workpiece main body 11 through the three-leg chuck 9 by the driving motor 8, the lifting guide rail 3 is matched with the guide cylinder 4 to be connected with the laser range finder 6 to horizontally move for detecting the distance of the surface of the workpiece main body 11, the driving motor 8 is rotated to drive the workpiece main body 11 to rotate while moving, the axis position of the surface of the workpiece main body 11 is detected by the laser range finder 6, the coaxial alignment of the workpiece main body 11 and the three-leg chuck 9 is facilitated, the workpiece main body 11 is prevented from shifting before processing, and the processing loss of the workpiece main body 11 can be effectively reduced after the coaxial alignment.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A workpiece position calibration device comprising a processing station (1), characterized in that: the machining bench is characterized in that bearing frames (2) and supporting frames (7) are respectively arranged on two sides of the top surface of the machining bench (1), lifting guide rails (3) are arranged on the top surface of the bearing frames (2), guide cylinders (4) are arranged at one ends of the lifting guide rails (3), guide sliding seats (5) are connected to the output ends of the guide cylinders (4), laser range finders (6) are arranged on the bottom surfaces of the guide sliding seats (5), driving motors (8) are arranged on one side of the surface of the bearing frames (2), three-foot chucks (9) are arranged on the output shafts of the driving motors (8), workpiece main bodies (11) are connected to the surfaces of the three-foot chucks (9), and the driving motors (8) are electrically connected with the guide cylinders (4).

2. The workpiece position calibration device of claim 1, wherein: the front bolt of support rack (7) is equipped with display panel (12), display panel (12) surface is equipped with regulation and control switch (13), regulation and control switch (13) and driving motor (8) and direction cylinder (4) electric connection.

3. The workpiece position calibration device of claim 1, wherein: the two sides of the bottom surface of the hoisting guide rail (3) are respectively bolted with a bearing frame (2), and the bottom surface of the bearing frame (2) is respectively bolted with the top surface of the processing table (1) and the top surface of the supporting table frame (7).

4. The workpiece position calibration device of claim 1, wherein: positioning support legs (10) are circumferentially distributed on the surface of the tripod chuck (9), and the edges of the positioning support legs (10) are hinged with the surface of the tripod chuck (9).

5. The workpiece position calibration device of claim 4 wherein: the surface of the positioning support leg (10) is propped against the surface of the workpiece main body (11).

6. The workpiece position calibration device of claim 1, wherein: the horizontal center line of the driving motor (8) is overlapped with the horizontal center line of the tripod chuck (9), and the top surface horizontal center line of the driving motor (8) is overlapped with the top surface horizontal center line of the laser range finder (6).

7. The workpiece position calibration device of claim 4 wherein: the surface edge of the tripod chuck (9) is processed by adopting a round angle.

8. The workpiece position calibration device of claim 4 wherein: and the surface of the positioning support leg (10) is coated with a silica gel coating.

9. The workpiece position calibration device of claim 1, wherein: the guide sliding seat (5) is in clearance fit with the hoisting guide rail (3).

10. The workpiece position calibration device of claim 1, wherein: the side section of the guide sliding seat (5) is T-shaped, and the bottom surface of the guide sliding seat (5) is connected with the top surface of the laser range finder (6) through screws.