CN115365888A - Friction wear test device mounted on lathe and working method thereof - Google Patents
Friction wear test device mounted on lathe and working method thereof Download PDFInfo
- Publication number
- CN115365888A CN115365888A CN202210949986.1A CN202210949986A CN115365888A CN 115365888 A CN115365888 A CN 115365888A CN 202210949986 A CN202210949986 A CN 202210949986A CN 115365888 A CN115365888 A CN 115365888A
- Authority
- CN
- China
- Prior art keywords
- wear test
- lathe
- plate
- cutter
- cutter bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
- B23Q17/0957—Detection of tool breakage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
- B23Q17/0966—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining by measuring a force on parts of the machine other than a motor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a frictional wear test device arranged on a lathe and a working method thereof, which are mainly used for simulating a tool frictional wear test in turning. The invention adopts the cylinder as a power source, has large selectable pressure range in the test, clean energy and reliable application, adopts bolt connection among all the parts, has simple structure and strong rigidity, and reduces the test error caused by vibration.
Description
Technical Field
The invention relates to the field of mechanical engineering, in particular to a friction and wear test device arranged on a lathe and a working method thereof.
Background
In the cutting process, in order to research the mechanical property and the abrasion resistance of the cutter, a friction and abrasion test needs to be carried out on the cutter; in the prior art, friction and wear tests are generally carried out in ball-disc and pin-disc friction and wear testing machines, but due to the structure of equipment, the problems of limited friction speed range, small loading torque, large friction and vibration, complex preparation of grinding accessories and the like exist in the tests, and a simulation test carried out on the friction and wear testing machine cannot replace the wear condition of a cutter on a real lathe.
In order to solve the technical problems, the prior scholars also design a device which is applied to a lathe for assisting in a friction wear test, the device adopts a spring assembly to provide positive pressure and adopts a bolt to fix a blade for testing, but the structure has the defects of insufficient rigidity and reduced positive pressure caused by fatigue deformation of the spring assembly under the condition of large load, and the positive pressure can be changed when a cutter is greatly worn; in addition, a student reforms the tool rest and sets a hydraulic constant force device, the structure is complex, and the risk of pollution exists.
Disclosure of Invention
The invention is improved according to the problems in the prior art, namely the invention provides a friction wear test device arranged on a lathe and a working method thereof.
The invention discloses a friction wear test device installed on a lathe, which is characterized in that: including the bottom plate with establish the dynamometer on the bottom plate, bottom plate fixed connection is on numerical control lathe's knife rest, the fixed backing plate that is equipped with in top of dynamometer and the linear guide who fixes on the backing plate, the last slip of linear guide is equipped with the rail block, linear guide's the fixed U type backing plate that is equipped with of rear portion, be equipped with L type boosting board on the rail block and fix the U type mounting plate on L type boosting board, removable fixedly connected with cutter arbor subassembly in the U type mounting plate, the fixed biax cylinder that is equipped with on the U type backing plate, the rear portion of the output fixed connection L type boosting board of the telescopic link of biax cylinder, be connected with the blade on the cutter arbor subassembly.
Further, the lower part of the dynamometer is connected with the bottom plate through a T-shaped bolt.
Further, the upper part of the dynamometer is fixedly connected with the base plate through a first hexagon socket head cap screw; the U-shaped base plate is fixedly connected with the base plate through a second inner hexagon bolt.
Furthermore, the U-shaped fastening plate is fixedly connected with the guide rail sliding block through a third hexagon socket head cap screw.
Furthermore, the cutter bar assembly comprises a cutter bar base body, a cutter blade and a pressure head, wherein the cutter bar base body is arranged in a groove of the U-shaped fastening plate, the cutter blade is positioned in a cutter groove in the cutter bar base body through a positioning bolt, the front end of the pressure head is pressed on the surface of the cutter blade, and the rear end of the pressure head is locked on the cutter bar base body through a double-head inner hexagon bolt.
Furthermore, the upper part and the side part of the U-shaped fastening plate are provided with fourth inner hexagonal bolts, and the inner ends of the fourth inner hexagonal bolts are propped against the upper surface and the side surface of the cutter bar base body.
The invention discloses a working method of a friction wear test device arranged on a lathe, which is characterized by comprising the following steps: the method comprises the following steps: (1) when the frictional wear test is started: according to the positive pressure F required for the test N From P = F N S, calculating the air pressure P to be loaded in the double-shaft cylinder, wherein S is the surface area of a piston in the double-shaft cylinder cavity contacting with an air pressure surface; (2) Stable air pressure P is input into the double-shaft air cylinder, so that an air cylinder piston pushes the L-shaped boosting plate, the rail sliding block and the cutter bar assembly to move to the left, and a blade in the cutter bar assembly is in contact with a workpiece to perform a friction wear test; (3) The dynamometer completes alignment pressure F when a friction-wear test is carried out N Monitoring and frictional force F f Collecting; (4) According to the friction coefficient mu = F of the tool and the workpiece N /F f (ii) a (5) when the frictional wear test is finished: the air pressure in the double-shaft air cylinder is reduced, the air cylinder piston moves towards the right side, the cutter bar assembly is driven to move towards the right side, the blade is separated from the workpiece, and the friction wear test is finished.
Compared with the prior art, the device of the invention has the following beneficial effects: the device has the advantages that the structure is simple, the design is reasonable, the power device adopted by the device is the double-shaft air cylinder, compared with a constant force spring assembly, the rigidity and the stability are better, the data error caused by vibration is reduced, and when the blade is greatly abraded, the positive pressure of the blade cannot be changed; compared with a hydraulic constant force device, the pneumatic device is more environment-friendly, lower in manufacturing cost and safer; the cutter bar component is designed to be more matched with the diversification of the blade shapes on the market, the application range is wider, the clamping and positioning of the blade are simpler and more convenient and more efficient, and the test efficiency is greatly improved; the installation of the force measuring assembly plays an important role in monitoring and collecting data, and the accuracy and precision of experimental data are improved.
Drawings
FIG. 1 is a schematic view of the front view configuration of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIGS. 4 and 5 are schematic front views of the surfaces A and B of the cutter bar assembly;
FIG. 6 is a cross-sectional view C-C of FIG. 4;
in the figure: 1-T-shaped bolt, 2-bottom plate, 3-M6 hexagon nut, 4-first hexagon socket bolt (PSBA-3-16), 5-backing plate, 6-cutter bar component, 7-linear guide rail, 8-guide rail slide block, 9-U-shaped fastening plate, 10-third hexagon socket bolt (PSBA-3-10), 11-fourth hexagon socket bolt (PSBA-3-8), 12-L-shaped boosting plate, 13-biaxial cylinder, 14-U-shaped backing plate, 15-hexagon socket bolt (PSBA-3-12), 16-dynamometer, 17-second hexagon socket bolt PSBA-3-12, 61-cutter bar base body, 62-triangular blade, 63-positioning bolt, 64-blade pressure head and 65-double-head hexagon socket bolt.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
as shown in fig. 1 to 6, in the present embodiment, the frictional wear testing apparatus mounted on a lathe includes a feeding assembly, a cutter bar assembly and a force measuring assembly for performing a frictional wear test;
specifically include bottom plate 2 and establish dynamometer 16 on the bottom plate, 2 fixed connection of bottom plate are on numerical control lathe's knife rest, and the top of dynamometer is fixed and is equipped with backing plate 5 and fixes linear guide 7 on the backing plate, slide on linear guide 7 and be equipped with guide rail slider 8, the fixed U type backing plate 14 that is equipped with of rear side portion of linear guide 7, be equipped with L type boosting plate 12 on guide rail slider 8 and fix the U type mounting plate 9 on L type boosting plate, removable fixedly connected with cutter arbor subassembly 6 in the U type mounting plate 9, the fixed biax cylinder 13 that is equipped with on the U type backing plate, the rear portion of the output fixed connection L type boosting plate 12 of the telescopic link of biax cylinder 13, be connected with blade 62 on the cutter arbor subassembly.
The feeding assembly comprises a double-shaft air cylinder 13, an L-shaped boosting plate 12, a U-shaped base plate 14 and the like, wherein the force measuring assembly comprises a bottom plate 2 and a force measuring instrument 16; when the test is started, stable air pressure is input into a double-shaft air cylinder 13 in the feeding assembly, the feeding assembly drives the cutter bar assembly to move leftwards to complete a friction and wear test, and the force measuring assembly completes monitoring of positive pressure in the horizontal direction and collection of friction force in the vertical direction.
The lower part of the force measuring instrument 16 is connected with the bottom plate 2 through a T-shaped bolt 1; the upper part of the dynamometer 16 is fixedly connected with a backing plate 5 through a first hexagon socket head cap screw 4; the U-shaped base plate 14 is fixedly connected with the base plate 5 through a second inner hexagon bolt 17; the U-shaped fastening plate 14 is fixedly connected with the guide rail sliding block 8 through a third inner hexagon bolt 10; the upper part and the side part of the U-shaped fastening plate are provided with fourth inner hexagonal bolts 11, and the inner ends of the fourth inner hexagonal bolts are pressed against the upper surface and the side surface of the cutter bar base body.
The cutter bar assembly 6 comprises a cutter bar base body 61, a cutter blade 62 and a pressure head 64, wherein the cutter bar base body is arranged in a groove of a U-shaped fastening plate, the cutter blade is positioned in a cutter groove on the cutter bar base body through a positioning bolt 63, the front end of the pressure head 64 is pressed on the surface of the cutter blade 62, and the rear end of the pressure head is locked on the cutter bar base body through a double-head inner hexagon bolt 65; the A surface and the B surface of the symmetrical surface of the cutter base body 61 are provided with triangular and square grooves for mounting triangular and square blades, and the positioning mode and the clamping mode of the two sides are the same.
The specific positioning and mounting mode of the blade 62 is that a triangular groove and a square groove are arranged at the head ends of the A surface and the B surface of the cutter bar base body 61, a threaded hole is formed between the triangular groove and the square groove, a positioning bolt 63 is connected in the threaded hole, the positioning bolt 63 comprises a cylindrical shaft on the upper portion, a flange in the middle portion and a screw section on the lower portion, the cylindrical shaft and the positioning hole in the blade 62 are mounted in a mutual small-gap fit mode, the flange in the middle portion is sunk into a counter bore in the threaded hole, and the screw section on the lower portion is in threaded connection with the threaded hole.
The invention discloses a working method of a friction wear test device arranged on a lathe, which comprises the following steps: (1) when the frictional wear test is started: according to the positive pressure F required for the test N From P = F N S, calculating the air pressure P to be loaded in the double-shaft cylinder, wherein S is the surface area of a piston in the double-shaft cylinder cavity contacting with an air pressure surface; (2) Inputting stable air pressure P into a double-shaft air cylinder, so that an air cylinder piston pushes an L-shaped boosting plate, a rail sliding block and a cutter bar assembly to move to the left, and a blade in the cutter bar assembly is in contact with a workpiece to perform a friction wear test; (3) The dynamometer completes alignment pressure F during friction and wear test N And friction force F f Collecting; (4) Calculating the friction coefficient mu = F between the tool and the workpiece N /F f (ii) a (5) when the frictional wear test is finished: the air pressure in the double-shaft air cylinder is reduced, the air cylinder piston moves towards the right side, the cutter bar assembly is driven to move towards the right side, the blade is separated from the workpiece, and the friction wear test is finished.
Claims (7)
1. The utility model provides a friction wear test device of installing on lathe which characterized in that: including the bottom plate with establish the dynamometer on the bottom plate, bottom plate fixed connection is on numerical control lathe's knife rest, the fixed backing plate that is equipped with in top of dynamometer and the linear guide who fixes on the backing plate, the last slip of linear guide is equipped with rail block, linear guide's the fixed U type backing plate that is equipped with of rear portion, rail block is last to be equipped with L type boosting board and to fix the U type mounting plate on L type boosting board, removable fixedly connected with cutter arbor subassembly in the U type mounting plate, the fixed biax cylinder that is equipped with on the U type backing plate, the rear portion of the output fixed connection L type boosting board of the telescopic link of biax cylinder, be connected with the blade on the cutter arbor subassembly.
2. The lathe-mounted friction wear test device according to claim 1, wherein: the lower part of the force measuring instrument is connected with the bottom plate through a T-shaped bolt.
3. The lathe-mounted frictional wear test apparatus according to claim 1 or 2, characterized in that: the upper part of the dynamometer is fixedly connected with the base plate through a first inner hexagon bolt; the U-shaped base plate is fixedly connected with the base plate through a second inner hexagon bolt.
4. The lathe-mounted friction wear test device according to claim 3, wherein: and the U-shaped fastening plate is fixedly connected with the guide rail sliding block through a third inner hexagon bolt.
5. The lathe-mounted friction wear test device according to claim 4, wherein: the cutter bar assembly comprises a cutter bar base body, a cutter blade and a pressure head, wherein the cutter bar base body is arranged in a groove of the U-shaped fastening plate, the cutter blade is positioned in a cutter groove in the cutter bar base body through a positioning bolt, the front end of the pressure head is pressed on the surface of the cutter blade, and the rear end of the pressure head is locked on the cutter bar base body through a double-head inner hexagonal bolt.
6. The lathe-mounted frictional wear test apparatus according to claim 5, wherein: and the upper part and the side part of the U-shaped fastening plate are provided with fourth inner hexagonal bolts, and the inner ends of the fourth inner hexagonal bolts are propped against the upper surface and the side surface of the cutter bar base body.
7. A device for testing frictional wear mounted on a lathe as claimed in any one of claims 1 to 6The working method is characterized in that: the method comprises the following steps: (1) when the frictional wear test is started: according to the positive pressure F required for the test N From P = F N S, calculating the air pressure P to be loaded in the double-shaft cylinder, wherein S is the surface area of a piston in the double-shaft cylinder cavity contacting with an air pressure surface; (2) Inputting stable air pressure P into a double-shaft air cylinder, so that an air cylinder piston pushes an L-shaped boosting plate, a rail sliding block and a cutter bar assembly to move to the left, and a blade in the cutter bar assembly is in contact with a workpiece to perform a friction wear test; (3) The dynamometer completes alignment pressure F during friction and wear test N Monitoring and frictional force F f Collecting; (4) Calculating the friction coefficient mu = F between the tool and the workpiece N /F f (ii) a (5) when the frictional wear test is finished: and the air pressure in the double-shaft air cylinder is reduced, the air cylinder piston moves towards the right side, the cutter bar assembly is driven to move towards the right side, the blade is separated from the workpiece, and the friction and wear test is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210949986.1A CN115365888A (en) | 2022-08-09 | 2022-08-09 | Friction wear test device mounted on lathe and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210949986.1A CN115365888A (en) | 2022-08-09 | 2022-08-09 | Friction wear test device mounted on lathe and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115365888A true CN115365888A (en) | 2022-11-22 |
Family
ID=84063913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210949986.1A Pending CN115365888A (en) | 2022-08-09 | 2022-08-09 | Friction wear test device mounted on lathe and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115365888A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141631A (en) * | 1999-11-16 | 2001-05-25 | Takachiho Seiki Kk | Friction abrasion tester |
| KR20020002123A (en) * | 2000-06-29 | 2002-01-09 | 조충환 | Testing machine for abrasion of rubber specimen |
| CN2618708Y (en) * | 2003-06-07 | 2004-06-02 | 范亚炯 | Float top pressing self protection adjustable cutter |
| CN2677062Y (en) * | 2003-08-07 | 2005-02-09 | 弘展切削工具有限公司 | Improved lathe tool frame structure |
| CN1787892A (en) * | 2003-05-14 | 2006-06-14 | 戴蒙得创新股份有限公司 | Cutting tool inserts and methods to manufacture |
| CN101299012A (en) * | 2008-06-13 | 2008-11-05 | 南京航空航天大学 | High speed frictional wear experiment auxiliary device allocated on a lathe |
| CN110608964A (en) * | 2019-10-31 | 2019-12-24 | 东风商用车有限公司 | Wear test device for friction pair |
| CN215315774U (en) * | 2021-07-30 | 2021-12-28 | 中机智能装备创新研究院(宁波)有限公司 | Heavy-load interchangeable pressing plate type cutter |
| CN217111900U (en) * | 2022-02-28 | 2022-08-02 | 南京工程学院 | Alternating load friction wear test auxiliary device |
-
2022
- 2022-08-09 CN CN202210949986.1A patent/CN115365888A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141631A (en) * | 1999-11-16 | 2001-05-25 | Takachiho Seiki Kk | Friction abrasion tester |
| KR20020002123A (en) * | 2000-06-29 | 2002-01-09 | 조충환 | Testing machine for abrasion of rubber specimen |
| CN1787892A (en) * | 2003-05-14 | 2006-06-14 | 戴蒙得创新股份有限公司 | Cutting tool inserts and methods to manufacture |
| CN2618708Y (en) * | 2003-06-07 | 2004-06-02 | 范亚炯 | Float top pressing self protection adjustable cutter |
| CN2677062Y (en) * | 2003-08-07 | 2005-02-09 | 弘展切削工具有限公司 | Improved lathe tool frame structure |
| CN101299012A (en) * | 2008-06-13 | 2008-11-05 | 南京航空航天大学 | High speed frictional wear experiment auxiliary device allocated on a lathe |
| CN110608964A (en) * | 2019-10-31 | 2019-12-24 | 东风商用车有限公司 | Wear test device for friction pair |
| CN215315774U (en) * | 2021-07-30 | 2021-12-28 | 中机智能装备创新研究院(宁波)有限公司 | Heavy-load interchangeable pressing plate type cutter |
| CN217111900U (en) * | 2022-02-28 | 2022-08-02 | 南京工程学院 | Alternating load friction wear test auxiliary device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203732351U (en) | Shaft torsion impact fatigue tester | |
| CN109304622A (en) | A kind of semi-automatic pin pressing machine | |
| CN213351629U (en) | Aircraft seat slide rail class stringer parts machining clamping device | |
| CN109571030A (en) | A kind of punching pressing method for semi-automatic pin pressing machine | |
| CN115365888A (en) | Friction wear test device mounted on lathe and working method thereof | |
| CN113442077A (en) | Special fixture for laminated composite material drilling experiment | |
| CN210587315U (en) | Clamping device for multi-spindle drilling machine | |
| CN201423472Y (en) | Face gear broaching fixture device | |
| CN110842603A (en) | Connecting rod components of a whole that can function independently processing frock | |
| CN215034177U (en) | Chamfering machine | |
| CN202411888U (en) | Fixing tooling of connecting rod | |
| CN109900556B (en) | Self-coordination type micro-motion fatigue test transverse micro-motion loading device | |
| CN210703745U (en) | Milling and clamping device for end face of brake shoe shaft hole | |
| CN106736872A (en) | A kind of whole machine of angle steel fixture | |
| CN211249612U (en) | Precision machine tool spindle box installation testing device | |
| CN201217093Y (en) | Apparatus for milling flutes | |
| CN209175272U (en) | A kind of semi-automatic pin pressing machine | |
| CN221020157U (en) | Knife sleeve adjusting mechanism | |
| CN216463971U (en) | Quick zero setting device of excircle measuring machine | |
| CN220388833U (en) | Milling force tester | |
| CN219319476U (en) | Tool for measuring working stroke and operating force of command sensor | |
| CN220806161U (en) | Automobile pedal locking machine | |
| CN213455230U (en) | Motor shaft flat end face detection tool | |
| CN219161513U (en) | Longitudinal resistance testing machine for high-speed railway fastener assembled steel rail | |
| CN220880163U (en) | Punching device for leaf spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |