CN217530218U

CN217530218U - Tool deflection measuring device

Info

Publication number: CN217530218U
Application number: CN202221816907.1U
Authority: CN
Inventors: 李辉; 靳长朋; 马英
Original assignee: Luoyang Atsen Precision Technology Co ltd
Current assignee: Luoyang Atsen Precision Technology Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-10-04
Anticipated expiration: 2032-07-15

Abstract

The utility model discloses a cutter deflection measuring device, which comprises a bearing frame, wherein a main shaft sleeve is rotationally arranged on the surface of the bearing frame, an inserting cavity which is in inserting fit with a cutter handle of a cutter is arranged inside the main shaft sleeve, the bottom end of the main shaft sleeve penetrates through the bearing frame and is provided with an air exhaust hole, and the air exhaust hole is communicated with the inserting cavity; a magnetic meter seat is arranged on one side of the spindle sleeve, and a dial indicator is arranged at the movable end of the magnetic meter seat. Has the advantages that: offline detection can be performed, detection on a machine tool is not needed, and the utilization rate of the machine tool is improved; the extraction hole is connected with the vacuumizing device, so that the tool shank of the tool can be in full contact with the inserting cavity, and the measuring accuracy is improved.

Description

Tool deflection measuring device

Technical Field

The utility model relates to a technical field is measured to the cutter, concretely relates to cutter beat measuring device.

Background

In the CNC machining process, a plurality of cutters are needed, and in the cutter movement process, because deviation can be generated after a machine tool main shaft and the cutters are installed on a cutter handle and the main shaft, the deviation exists between the cutter operation diameter and the cutter standard diameter, namely cutter swinging in machining. In the precision machining process, in order to control the precision of the part machined by CNC, the tool pendulum of the tool mounted on the tool holder needs to be measured. The conventional method for measuring the tool pendulum is to mount a tool on a tool holder, then mount the tool on a machine tool spindle, then place a pointer of a dial indicator on a tool tip of the tool, rotate the machine tool spindle for a circle, and read out the maximum and minimum difference of the dial indicator, namely the tool pendulum of the tool.

At present, the detection method has the following problems:

1. the detection of the tool pendulum occupies the running time of the machine tool, and the use efficiency of the machine tool is reduced;

2. after the cutter pendulum is detected to be larger on the machine tool, the cutter handle and the cutter are required to be detached, then the cutter handle and the cutter are cleaned again for installation, and then the detection is carried out again, and the operation is repeated for a plurality of times until the cutter pendulum is qualified. The waste of personnel and machine tools is greatly caused, the labor intensity of people is increased, and the repetition and waste of work are caused.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a tool deflection measuring device for solving the above problems, as will be explained in detail below.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a cutter deflection measuring device, including bearing frame, the surface of bearing frame rotates and is provided with the spindle sleeve, the inside of spindle sleeve is provided with inserts the chamber of putting with the handle of a knife grafting cooperation, the spindle sleeve bottom runs through the bearing frame and is provided with the aspirating hole, the aspirating hole with insert put the chamber and be linked together;

a magnetic gauge stand is arranged on one side of the spindle sleeve, and a dial indicator is arranged at the movable end of the magnetic gauge stand.

By adopting the cutter deflection measuring device, when the cutter is detected, the handle of the cutter is inserted into the inserting cavity, the air exhaust hole is connected with the vacuumizing device, air in the inserting cavity is extracted through the vacuumizing device, the handle of the cutter is fully contacted with the inserting cavity, the detection precision is prevented from being influenced by installation errors, and the detection precision is improved; adjust the magnetic gauge stand makes the sense terminal of amesdial and cutter contact, rotates the main shaft cover makes the cutter rotatory, carries out the sword pendulum through the amesdial to the cutter and detects, and overall operation is simple convenient, carries out the off-line and detects, need not to detect on the lathe, helps improving the utilization ratio of lathe.

Preferably, the inner wall of the inserting cavity is provided with an annular-structure clearance groove, and the air exhaust hole is communicated with the clearance groove.

Preferably, bear the frame surface and rotate and be provided with fixed cover, the main shaft cover rotates through dense pearl bearing and installs inside fixed cover, the shaping of main shaft cover upper end outside has a spacing ring, the main shaft cover lower extreme runs through fixed cover and cover are equipped with the sealing ring, the main shaft cover lower extreme has radial lock nut through threaded connection for the shaping sealing ring seals fixed cover bottom.

Preferably, the inner wall upper portion and the bottom of fixed cover all are provided with and hold the chamber, two it is located respectively to hold the chamber the top and the below of dense pearl bearing, the main shaft cover outside is provided with thrust bearing, thrust bearing is total two and is located two respectively and holds intracavity portion.

Preferably, the surface of the bearing frame is provided with a mounting cavity in a penetrating mode, a through hole is formed in the outer side of the mounting cavity, a connecting ring is formed in the outer side of the upper portion of the fixing sleeve, a threaded hole is formed in the bottom face of the connecting ring, and the threaded hole corresponds to the through hole.

Preferably, the bottom surface of the limit ring is provided with a first sealing groove of an annular structure, a first sealing boss is formed on the surface of the connecting ring, and the first sealing boss is in clearance fit with the first sealing groove.

Preferably, a second sealing groove of an annular structure is formed in the bottom end face of the fixed sleeve, a second sealing boss is formed on the surface of the sealing ring, and the second sealing boss is in clearance fit with the second sealing groove.

Preferably, the bearing frame is of a door-shaped structure, and the opening end of the bearing frame corresponding to the air suction hole is provided.

Has the advantages that: 1. offline detection can be performed, detection on a machine tool is not needed, and the utilization rate of the machine tool is improved;

2. the extraction hole is connected with the vacuumizing device, so that the tool shank of the tool can be in full contact with the inserting cavity, and the measuring accuracy is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a right side sectional view of the spindle cover.

The reference numerals are explained below:

1. a carrier; 101. a mounting cavity; 102. a through hole; 2. a main shaft sleeve; 201. inserting the cavity; 202. an empty avoiding groove; 203. an air exhaust hole; 204. a first seal groove; 205. a limiting ring; 3. a cutter; 4. a dial indicator; 5. a magnetic gauge stand; 6. fixing a sleeve; 601. a first seal boss; 602. a second seal groove; 603. an accommodating chamber; 604. a connecting ring; 605. a threaded hole; 7. a thrust bearing; 8. a dense ball bearing; 9. a seal ring; 901. a second seal boss; 10. and locking the nut in the radial direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides a tool deflection measuring device, which comprises a bearing frame 1, a spindle sleeve 2 is rotatably arranged on the surface of the bearing frame 1, an inserting cavity 201 which is inserted and matched with a tool shank of a tool 3 is arranged in the spindle sleeve 2, the bottom end of the spindle sleeve 2 penetrates through the bearing frame 1 and is provided with an air exhaust hole 203, and the air exhaust hole 203 is communicated with the inserting cavity 201;

a magnetic gauge stand 5 is arranged on one side of the spindle sleeve 2, and a dial indicator 4 is arranged at the movable end of the magnetic gauge stand 5.

As an optional implementation mode, the inner wall of the insertion cavity 201 is provided with the clearance groove 202 of an annular structure, and the air exhaust hole 203 is communicated with the clearance groove 202, so that the clearance groove 202 is arranged, the air exhaust effect of the insertion cavity 201 can be improved by arranging the clearance groove 202, the cutter 3 is ensured to be in full contact with the insertion cavity 201, and the detection accuracy is prevented from being influenced by installation errors.

The clearance groove 202 is located in the middle of the inserting cavity 201, so that air can be uniformly pumped from the upper portion and the lower portion of the inserting cavity 201, and the cutter 3 is guaranteed to be in full contact with the inserting cavity 201.

Bear 1 surperficial rotation of frame and be provided with fixed cover 6, main shaft cover 2 rotates through dense pearl bearing 8 and installs inside fixed

cover

6, 2 upper end outside shaping of main shaft cover has

stopper ring

205, 2 lower extremes of main shaft cover run through fixed cover 6 and the cover is equipped with sealing ring 9, 2 lower extremes of main shaft cover have radial lock nut 10 through threaded connection, be used for shaping sealing ring 9 to seal fixed 6 bottoms of cover, set up like this, when installing main shaft cover 2, revolve wrong radial lock nut 10, realize main shaft cover 2's axial clearance's regulation, measure axial clearance through amesdial 4, ensure after reasonable scope, lock the screw on the radial lock nut 10, accomplish the axial clearance and adjust.

The inner wall upper portion and the bottom of fixed cover 6 all are provided with and hold chamber 603, and two hold the top and the below that chamber 603 is located dense pearl bearing 8 respectively, and the spindle cover 2 outside is provided with thrust bearing 7, and thrust bearing 7 is total two just is located two respectively and holds the chamber 603 inside, sets up like this, realizes the radial clearance regulation of spindle cover 2 through two thrust bearing 7, ensures at reasonable scope, helps improving the detection precision.

Through the above axial and radial positioning adjustment, the jumping amount of the insertion cavity 201 of the spindle cover 2 can be controlled within 0.002mm to ensure the measurement accuracy.

The surface of the bearing frame 1 is provided with a mounting cavity 101 in a penetrating manner, the outer side of the mounting cavity 101 is provided with a through hole 102, the outer side of the upper part of the fixing sleeve 6 is molded with a connecting ring 604, the bottom surface of the connecting ring 604 is provided with a threaded hole 605, and the threaded hole 605 corresponds to the through hole 102, so that the mounting of the fixing sleeve 6 is convenient to realize.

The bottom surface of the limiting ring 205 is provided with a first sealing groove 204 with an annular structure, the surface of the connecting ring 604 is formed with a first sealing boss 601, and the first sealing boss 601 is in clearance fit with the first sealing groove 204, so that the upper part of the fixed sleeve 6 can be sealed, dust is prevented from entering, the rotation accuracy of the spindle sleeve 2 is ensured, and the detection accuracy is ensured.

Fixed cover 6 bottom end face is provided with the second seal groove 602 of loop configuration, and sealing ring 9 surface molding has second sealed boss 901, and second sealed boss 901 and second seal groove 602 clearance fit set up like this, can seal fixed cover 6 bottom, prevent that the dust from getting into, ensure the rotational accuracy of spindle sleeve 2 to guarantee detection accuracy.

The bearing frame 1 is of a door-shaped structure, and the opening end of the bearing frame 1 corresponding to the air suction hole 203 is arranged in such a way, so that the connection between the vacuum pumping device and the air suction hole 203 is convenient to realize.

By adopting the structure, when the cutter 3 is detected, the handle of the cutter 3 is inserted into the insertion cavity 201, the air exhaust hole 203 is connected with the vacuumizing device, air in the insertion cavity 201 is extracted through the vacuumizing device, the handle of the cutter 3 is fully contacted with the insertion cavity 201, the detection precision is prevented from being influenced by installation errors, and the detection precision is improved; adjust magnetic gauge stand 5, make amesdial 4's sense terminal and cutter 3 contact, rotatory spindle sleeve 2 makes cutter 3 rotatory, carries out the sword pendulum through amesdial 4 to cutter 3 and detects, and overall operation is simple convenient, carries out the off-line and detects, need not to detect on the lathe, helps improving the utilization ratio of lathe.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cutter (3) deflection measuring device is characterized in that: the tool comprises a bearing frame (1), wherein a spindle sleeve (2) is rotatably arranged on the surface of the bearing frame (1), an inserting cavity (201) which is in inserting fit with a tool shank of a tool (3) is arranged in the spindle sleeve (2), the bottom end of the spindle sleeve (2) penetrates through the bearing frame (1) and is provided with an air exhaust hole (203), and the air exhaust hole (203) is communicated with the inserting cavity (201);

a magnetic meter seat (5) is arranged on one side of the spindle sleeve (2), and a dial indicator (4) is arranged at the movable end of the magnetic meter seat (5).

2. A tool (3) runout measuring device according to claim 1, characterized in that: the inner wall of the inserting cavity (201) is provided with a clearance groove (202) of an annular structure, and the air suction hole (203) is communicated with the clearance groove (202).

3. A tool (3) runout measuring device according to claim 1, characterized in that: bear (1) surface rotation and be provided with fixed cover (6), main shaft cover (2) rotate through dense pearl bearing (8) and install fixed cover (6) are inside, main shaft cover (2) upper end outside shaping has spacing ring (205), main shaft cover (2) lower extreme runs through fixed cover (6) and cover are equipped with sealing ring (9), main shaft cover (2) lower extreme has radial lock nut (10) through threaded connection for shaping sealing ring (9) are sealed fixed cover (6) bottom.

4. A tool (3) runout measuring device according to claim 3, characterized in that: the inner wall upper portion and the bottom of fixed cover (6) all are provided with and hold chamber (603), two it is located respectively to hold chamber (603) the top and the below of dense pearl bearing (8), spindle sleeve (2) outside is provided with thrust bearing (7), thrust bearing (7) are total two and are located two respectively and hold inside chamber (603).

5. A tool (3) runout measuring device according to claim 4, characterized in that: the surface of the bearing frame (1) is provided with a mounting cavity (101) in a penetrating mode, a through hole (102) is formed in the outer side of the mounting cavity (101), a connecting ring (604) is formed in the outer side of the upper portion of the fixing sleeve (6), a threaded hole (605) is formed in the bottom face of the connecting ring (604), and the threaded hole (605) corresponds to the through hole (102).

6. A tool (3) runout measuring device according to claim 5, characterized in that: the bottom surface of the limiting ring (205) is provided with a first sealing groove (204) with an annular structure, the surface of the connecting ring (604) is formed with a first sealing boss (601), and the first sealing boss (601) is in clearance fit with the first sealing groove (204).

7. Tool (3) runout measuring device according to claim 6, characterized in that: the bottom end face of the fixed sleeve (6) is provided with a second sealing groove (602) with an annular structure, a second sealing boss (901) is formed on the surface of the sealing ring (9), and the second sealing boss (901) is in clearance fit with the second sealing groove (602).

8. A tool (3) runout measuring device according to claim 1, characterized in that: the bearing frame (1) is of a structure shaped like a Chinese character 'men', and the opening end of the bearing frame (1) corresponding to the air suction hole (203).