CN112872908B - Positioning fixture for cutter wear detection and experiment platform - Google Patents
Positioning fixture for cutter wear detection and experiment platform Download PDFInfo
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- CN112872908B CN112872908B CN202110148084.3A CN202110148084A CN112872908B CN 112872908 B CN112872908 B CN 112872908B CN 202110148084 A CN202110148084 A CN 202110148084A CN 112872908 B CN112872908 B CN 112872908B
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- 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
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Abstract
The invention relates to a positioning fixture and an experimental platform for tool wear detection, and belongs to the technical field of machining tool positioning fixture equipment. The positioning fixture comprises a rotating bottom plate, a clamping eccentric wheel, a bolt, a spring, a rotating rod, a shell, an upper fixing block, a lower fixing block, a cylindrical pin and a nut. The positioning fixture is installed on the experiment platform, and the experiment platform further comprises an X-axis direction moving slide rail, a Y-axis direction moving slide rail, a Z-axis direction moving slide rail, a storage rack, an experiment platform moving pull rod and universal pulleys. The positioning fixture can clamp and loosen the cutter handle, so that the cutter can be accurately positioned, and the detection efficiency of cutter abrasion is improved. The experiment platform drives the positioning fixture to freely move in X, Y, Z-axis three directions through the movable slide rail, so that multidirectional adjustment is realized, the movement of a machine tool is accurately simulated, and the detection position of the cutter can be flexibly adjusted.
Description
Technical Field
The invention relates to the technical field of machining positioning clamp equipment, in particular to a positioning clamp and an experimental platform for tool wear detection.
Background
In milling, the state of wear of the tool has a significant effect on the machining accuracy and surface integrity of the workpiece, and excessive tool wear will result in deterioration of the quality of the machined surface. The existing cutter abrasion detection device does not have a positioning clamp for accurately positioning and clamping the cutter and the cutter handle, the cutter needs to be detached from the cutter handle when the cutter is abraded, the cutter needs to be reset when the cutter is installed again after detection, manual errors can be possibly caused in the process, the time consumption is long, the cutter abrasion detection efficiency is obviously reduced, and the machining efficiency is further influenced.
Therefore, at present, a positioning fixture capable of positioning and clamping a cutter handle is needed, the cutter handle can be accurately positioned, detection of the degree of wear of the cutter is realized under the condition that the cutter is not detached, and the detection efficiency of the wear of the cutter is effectively improved.
Disclosure of Invention
The invention aims to provide a positioning fixture and an experimental platform for detecting the abrasion of a cutter. Through the movable slide rail of X, Y, Z axles on the experiment platform, drive positioning fixture and carry out X, Y, Z three directions and freely remove, realize multidirectional regulation, accurate simulation lathe motion can adjust the cutter in a flexible way and detect the position, when having solved current cutter wearing and tearing detection device and detecting the cutter wearing and tearing, need pull down the cutter from the handle of a knife, influences detection efficiency's problem, has further promoted the detection efficiency of cutter wearing and tearing.
In order to achieve the purpose, the invention provides the following scheme:
a positioning fixture for tool wear detection, comprising:
the clamping mechanism is arranged on the annular fixed base and used for clamping and loosening the tool shank of the tool to be measured; the annular fixed base is used for supporting the cutter to be detected;
the inner circle diameter size of the annular fixed base is larger than the limit accommodating size of the clamping mechanism in the full diastole state.
Optionally, the device further comprises a shell and a rotating bottom plate, wherein the rotating bottom plate is arranged in the inner circle of the annular fixed base or on the upper surface of the annular fixed base, the shell is buckled on the rotating bottom plate, and the shell is fixedly connected with the rotating bottom plate; the clamping mechanism is arranged between the shell and the rotating bottom plate; the middle part of the shell is provided with a through hole communicated with the clamping port of the clamping mechanism, and the inner side of the through hole is used for clamping the handle of the cutter to be measured by the clamping mechanism.
Optionally, the clamping mechanism comprises a lower fixing block and at least three clamping eccentric wheels;
the bottom of the lower fixing block is fixedly connected with the annular fixing base, and a groove is formed in the top of the lower fixing block;
the clamping eccentric wheel comprises a supporting column, a sliding column and an eccentric wheel, the bottom end of the supporting column is fixedly connected with the rotating bottom plate, the eccentric wheel is sleeved on the supporting column in an eccentric manner, the wheel edge of the eccentric wheel is fixedly connected with the sliding column, and the sliding column is slidably arranged in the groove;
through rotating the shell, drive the rotating bottom plate with the support column rotates, make the slip post slide in the recess, realize clamping mechanism's diastole, the antiport the shell realizes clamping mechanism's clamp tightly.
Optionally, the clamping mechanism further comprises an upper fixing block, the upper fixing block is connected with the lower fixing block, and a groove formed in the lower surface of the upper fixing block is opposite to a groove formed in the top of the lower fixing block.
Optionally, the groove is an arc-shaped groove arranged along the sliding direction of the sliding column.
Optionally, the housing and the rotating base plate are fixedly connected through a connecting rod.
Optionally, the annular fixing base is provided with positioning pins, the number of the positioning pins is the same as that of the connecting rods, each positioning pin is connected with the corresponding connecting rod through a spring, and the spring is used for driving the clamping mechanism to recover to a clamping state by utilizing the deformed elastic force after being opened.
Optionally, be provided with the dwang on the shell, through rotating the dwang drives the shell with the rotating bottom plate rotates, realizes clamping mechanism's clamp is tight and opens.
The invention also provides an experimental platform which comprises the positioning clamp, the X-axis direction slide rail, the first Y-axis direction slide rail, the second Y-axis direction slide rail, the first Z-axis direction slide rail, the second Z-axis direction slide rail and the storage rack;
the first Y-axis direction sliding rail and the second Y-axis direction sliding rail are arranged on the outer surface of the top of the storage rack in parallel;
one end of each of the first Z-axis direction slide rail and the second Z-axis direction slide rail is slidably connected with the first Y-axis direction slide rail or the second Y-axis direction slide rail respectively, and the other end of each of the first Z-axis direction slide rail and the second Z-axis direction slide rail extends vertically and upwards along a plane where the first Y-axis direction slide rail and the second Y-axis direction slide rail are located and is slidably connected with two ends of the X-axis direction slide rail;
the annular fixing base of the positioning fixture is slidably mounted on the X-axis direction slide rail and is parallel to the plane where the first Y-axis direction slide rail and the second Y-axis direction slide rail are located.
Optionally, the rack further comprises a pull rod and a plurality of universal wheels, wherein the pull rod is arranged on the outer surface of the rack, and the universal wheels are arranged at the bottom of the rack.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
(1) the invention designs a positioning clamp special for clamping a cutter during cutter abrasion detection, which realizes the opening and self-locking clamping of a clamping mechanism through an integrated structure of a shell, a rotating bottom plate and the clamping mechanism and a smart connecting structure of an eccentric wheel, a supporting column and a sliding column of a clamping eccentric wheel, and can automatically recover the clamping mechanism to a clamping state by utilizing the elastic force after the elastic deformation of a spring after a cutter handle enters the clamping mechanism or the cutter is taken out, so that the accurate axial and radial positioning of the cutter is realized, and after the cutter detection is finished, if the cutter to be detected reaches the service life, the cutter can be changed in time, the consumed time is shorter, and the detection efficiency of the cutter abrasion is improved.
(2) The positioning fixture disclosed by the invention can be used for positioning and clamping the HSK tool handle, the BT tool handle and other various tool handles which are mainstream in the market, can be matched with tool handles of various types and sizes, has good adaptability, can be widely applied to various machining fields, is wide in application and is beneficial to popularization.
(3) According to the invention, the positioning fixture and the experiment platform are matched for use, so that the positioning, clamping and flexible movement of the cutter are realized, and the cutter does not need to be reset after detection, so that the problem of manual error caused by the fact that the cutter needs to be reset after the cutter abrasion detection of the existing cutter abrasion detection device is solved, and the processing precision is further improved.
(4) According to the invention, the positioning clamp is driven to freely move in three directions of X, Y, Z axes by the X, Y, Z axis moving slide rail on the experiment platform, so that multidirectional adjustment is realized, the machine tool movement is accurately simulated, the detection position of the cutter can be flexibly adjusted, the problem of detection efficiency reduction caused by the fact that the cutter needs to be detached from the cutter handle when the existing cutter abrasion detection device detects cutter abrasion is solved, and the detection efficiency of cutter abrasion is further improved.
(5) The storage rack in the experimental platform is provided with the multiple layers of trays, so that various tool abrasion detection tools can be placed, detection personnel can place and take the tools more conveniently and quickly, and the detection efficiency is further improved.
(6) The experiment platform provided by the invention is provided with the pull rod and the universal wheels with the locking wheel structures, so that the use by detection personnel is more convenient, the universal wheels can be locked by the locking wheel structures, the experiment platform is prevented from sliding, and the safety of the cutter on the cutter positioning clamp is effectively guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a disassembled schematic view of a structure of a tool positioning jig provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a BT cutter handle clamped by the cutter positioning clamp provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of the tool positioning fixture clamping the HSK tool shank according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of an experimental platform provided in embodiment 2 of the present invention.
Reference numerals:
1-a clamping mechanism; 101-lower fixed block; 102-a clamping eccentric wheel; 1021-a support column; 1022-a sliding post; 1023-eccentric wheel; 103-fixing the block; 104-a first bolt; 105-a first nut; 2-annular fixed base; 3-cutting tools; 4-a housing; 5-rotating the bottom plate; 6-a second bolt; 7-a second nut; 8-connecting rod; 9-a positioning pin; 10-a spring; 11-rotating rods; a 12-X axis direction slide rail; 13-a first Y-axis directional slide rail; 14-a second Y-axis directional slide rail; 15-a first Z-axis direction slide rail; 16-a second Z-axis direction slide rail; 17-a shelf; 18-a tie rod; 19-universal wheel.
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.
The invention aims to provide a positioning fixture and an experimental platform for detecting the abrasion of a cutter. Through the movable sliding rail of X, Y, Z axles on the experiment platform, drive positioning fixture and carry out X, Y, Z three directions and freely remove, realize multidirectional regulation, accurate simulation lathe motion can adjust the cutter in a flexible way and detect the position, when having solved current cutter wearing and tearing detection device and detecting the cutter wearing and tearing, need pull down the cutter from the handle of a knife and influence detection efficiency's problem, has further promoted the detection efficiency of cutter wearing and tearing.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
The embodiment provides a positioning fixture for wear detection of a cutter 3, as shown in fig. 1, the positioning fixture includes a clamping mechanism 1 and an annular fixing base 2, the clamping mechanism 1 is mounted on the annular fixing base 2, and the clamping mechanism 1 is used for clamping and stretching a handle of the cutter 3 to be detected; the annular fixed base 2 is used for supporting the cutter 3 to be detected.
In this embodiment, the inner circle diameter of the annular fixed base 2 is larger than the limit accommodation size of the clamping mechanism 1 in the complete relaxation state, so as to ensure that the tool shank of the tool 3 to be measured can easily penetrate through the annular fixed base 2 and be inserted into the clamping mechanism 1 for clamping.
As can also be seen from fig. 1, the positioning jig further comprises a housing 4 and a rotating base plate 5.
Wherein, the rotating bottom plate 5 is arranged in the inner circle of the annular fixed base 2 or on the upper surface of the annular fixed base 2, the shell 4 is buckled on the rotating bottom plate 5, and the shell 4 is fixedly connected with the rotating bottom plate 5.
The clamping mechanism 1 is arranged between the shell 4 and the rotating bottom plate 5; the middle of the shell 4 is provided with a through hole communicated with the clamping port of the clamping mechanism 1, and the inner side of the through hole is used for clamping the handle of the cutter 3 to be measured by the clamping mechanism 1.
The clamping mechanism 1 comprises a lower fixing block 101 and at least three clamping eccentric wheels 102. The bottom of lower fixed block 101 with annular unable adjustment base 2 fixed connection, the top of lower fixed block 101 is equipped with the recess. The clamping eccentric wheel 102 comprises a supporting column 1021, a sliding column 1022 and an eccentric wheel 1023, wherein the bottom end of the supporting column 1021 is fixedly connected with the rotating base plate 5, the eccentric wheel 1023 is eccentrically sleeved on the supporting column 1021, the edge of the eccentric wheel 1023 is fixedly connected with the sliding column 1022, and the sliding column 1022 is slidably arranged in the groove. Through rotating the shell 4, drive the rotation bottom plate 5 and the support column 1021 rotates, make the sliding column 1022 slide in the recess, realize opening of clamping mechanism 1, the reverse rotation shell 4 realizes clamping of clamping mechanism 1.
The clamping mechanism 1 further comprises an upper fixing block 103, the upper fixing block 103 is connected with the lower fixing block 101, and a groove formed in the lower surface of the upper fixing block 103 is opposite to a groove formed in the top of the lower fixing block 101. Namely, a groove track for the sliding and rotating of the sliding column 1022 is arranged at the joint of the upper fixed block 103 and the lower fixed block 101, and the sliding column 1022 is limited by the upper fixed block 103 when sliding.
It should be noted that, since the track of the sliding column 1022 sliding in the groove is not a straight line but a curved arc line during the clamping or opening process of the clamping mechanism 1, the groove is an arc-shaped groove arranged along the sliding direction of the sliding column 1022. The sliding direction of the sliding post 1022 is determined by the rotating direction of the housing 4 and the rotating base plate 5, and may be clockwise or counterclockwise, and an arc-shaped groove corresponding to the sliding track of the sliding post 1022 needs to be provided according to the rotating direction. It should be noted that the rotation directions of the housing 4 and the rotating base plate 5, and the specific directions and sizes of the arc-shaped grooves are not exclusive and can be set according to practical situations, and are not intended to limit the scope of the present invention, and any arrangement related to the above should be within the scope of the present invention.
In this embodiment, the upper fixing block 103 and the lower fixing block 101 are arranged in pairs, and the number of the upper fixing block and the number of the lower fixing block are equal to the number of the clamping eccentric wheels 102, and at least three fixing blocks should be arranged to ensure the clamping effect of the clamping mechanism 1.
As shown in fig. 1, in the present embodiment, corresponding hole positions are disposed on the upper fixing block 103, the lower fixing block 101 and the annular fixing base 2, and the upper fixing block 103 and the lower fixing block 101 are connected and fixed to the annular fixing base 2 by 6 first bolts 104 and 6 first nuts 105.
In this embodiment, the housing 4 and the rotating base plate 5 are fixedly connected through a plurality of connecting rods 8. The annular fixing base 2 is provided with positioning pins 9 with the same number as the connecting rods 8, each positioning pin 9 is connected with the corresponding connecting rod 8 through a spring 10, and the spring 10 is used for driving the clamping mechanism 1 to recover to a clamping state by utilizing the deformed elastic force after the clamping mechanism 1 is opened. Through setting up locating pin 9, not only make it with spring 10 is connected, realizes clamping mechanism 1's self-holding, still right simultaneously the rotating bottom plate 5 carries on spacingly.
Be provided with dwang 11 on the shell 4, dwang 11 can the level set up the side of shell 4, also can vertical setting be in the upper surface of shell 4. Through rotating dwang 11 drives shell 4 with rotating bottom plate 5 rotates, realizes clamping mechanism 1 presss from both sides tightly and opens. Through setting up connecting rod 8, locating pin 9 and spring 10, utilize elastic deformation principle, can realize clamping mechanism 1's self-holding makes positioning fixture's structure simpler, convenient, and it is easier to press from both sides tight operation.
Principle of clamping and opening of the clamping mechanism 1 of the present invention:
in a normal state without the tool shank inserted, the clamping mechanism 1 is in a clamping state, i.e. the clamping eccentrics 102 are in a converging state, due to the stretching action of the spring 10. When a cutter handle is placed in the clamping mechanism for clamping, the rotating rod 11 is pulled to drive the shell 4 and the rotating bottom plate 5 to rotate, so that one end of the supporting column 1021 clamping the eccentric wheel 102 rotates along with the shell 4 and the rotating bottom plate 5 to drive the eccentric wheel 1023 to rotate, one end of the sliding column 1022 slides in the groove between the upper fixing block 103 and the lower fixing block 101, the clamping mechanism 1 is finally opened, the cutter handle is placed in the clamping position of the central through hole of the positioning clamp at the moment, the spring 10 is stretched to have elasticity, the rotating rod 11 is loosened, the spring 10 automatically retracts to a normal state by utilizing the elastic deformation principle of the spring 10, the shell 4 and the rotating bottom plate 5 are driven to reversely rotate to an original position, the self-locking clamping of the clamping mechanism 1 is realized, and the centering of the cutter handle and the cutter 3 is realized, thereby realizing the accurate positioning of the radial direction and the axial direction of the knife handle.
In the embodiment, as shown in fig. 1, the housing 4 and the rotating base plate 5 are connected by 3 second bolts 6 and 3 second nuts 7, in this case, the connecting rod 8 may be hollow, and the second bolts 6 pass through the hollow connecting rod 8 and are screwed with the second nuts 7, thereby fixing the housing 4 and the rotating base plate 5. To this end, the spring 10 may directly connect the hollow link 8 and the positioning pin 9 on the annular stationary base 2. Alternatively, an independent connecting rod 8 may be disposed on one side of the second bolt 6, and the spring 10 connects the independently disposed connecting rod 8 and the positioning pin 9, so as to achieve the purpose of restoring the clamping mechanism 1 to the clamping state by using the principle of elastic deformation. In this embodiment, it is preferable to set the hollow connecting rod 8 with the second bolt 6 as the center, and to make the second bolt 6 penetrate through the hollow connecting rod 8, so that the structure is more stable and the space is saved.
It should be noted that the connection manner between the housing 4 and the rotating base plate 5, the upper fixing block 103 and the lower fixing block 101 is not limited in the present invention, and may be a bolt fixing manner, a welding manner, or other various manners, preferably a bolt fixing manner. When the bolt fixing mode is selected, the number of the first bolt 104, the first nut 105, the second bolt 6 and the second nut 7 is not fixed. The number of said connecting rods 8 and said positioning pins 9 is not exclusive, but the number of them needs to be equal, preferably at least three. Furthermore, the size, length and spring force of the spring 10 are not exclusive, but are required to ensure that the clamping mechanism 1 is pulled back to the normal clamping state, and has sufficient life and rigidity. Therefore, the connection manner of the housing 4 and the rotating base plate 5, the connection manner of the upper fixing block 103 and the lower fixing block 101, the number of bolts and nuts, the number, installation manner and installation position of the connecting rods 8 and the positioning pins 9, and the spring 10 are required to be determined according to specific situations, and any arrangement manner related to the above is within the protection scope of the present invention.
Fig. 2 is a schematic structural view of clamping a BT tool shank by the positioning fixture for the tool 3 provided in embodiment 1 of the present invention, and fig. 3 is a schematic structural view of clamping an HSK tool shank by the positioning fixture for the tool 3 provided in embodiment 1 of the present invention. As shown in fig. 2 and fig. 3, according to the positioning fixture provided by the embodiment, the tool 3 to be measured is not required to be detached from the tool shank, and is directly clamped on the positioning fixture for detection, so that clamping and axial and radial positioning can be performed on the HSK tool shank, the BT tool shank and other various types of tool shanks which are mainstream on the market, and the tool shanks can be matched with various types and sizes, have good adaptability, can be widely applied to various machining fields, are widely applied, and are beneficial to popularization.
The positioning fixture that this embodiment provided, through shell 4, the integrated structure of rotating bottom plate 5 and clamping mechanism 1, and press from both sides eccentric wheel 1023 of tight eccentric wheel 102, support column 1021 and the ingenious connection structure of slip post 1022, the auto-lock of clamping mechanism 1 is tight and is relaxed has been realized, and utilize elasticity behind the elastic deformation of spring 10, get into clamping mechanism 1 after or take out cutter 3 at the cutter handle of a knife, can make clamping mechanism 1 automatic recovery to clamping state, thereby realize axial and radial accurate location to cutter 3, cutter 3 detects the back that finishes, if the discovery waits to detect cutter 3 and reaches life, in time the tool changing, it is consuming time shorter, thereby the detection efficiency of cutter 3 wearing and tearing has been promoted.
Example 2
Fig. 4 is a schematic structural diagram of an experiment platform provided in embodiment 2 of the present invention, and this embodiment provides an experiment platform for wear detection of a tool 3, where the experiment platform includes a positioning fixture in embodiment 1 of the present invention, and in addition, the experiment platform further includes an X-axis direction slide rail 12, a first Y-axis direction slide rail 13, a second Y-axis direction slide rail 14, a first Z-axis direction slide rail 15, a second Z-axis direction slide rail 16, and a rack 17.
As shown in fig. 4, the first Y-axis direction slide rail 13 and the second Y-axis direction slide rail 14 are installed in parallel on the outer surface of the top of the rack 17, so that the positioning jig can move freely in the Y-axis direction. One end, namely the bottom end, of each of the first Z-axis direction slide rail 15 and the second Z-axis direction slide rail 16 is slidably connected to the first Y-axis direction slide rail 13 or the second Y-axis direction slide rail 14, and the other end, namely the top end, of each of the first Z-axis direction slide rail 15 and the second Z-axis direction slide rail 16 extends vertically and upwardly along a plane where the first Y-axis direction slide rail 13 and the second Y-axis direction slide rail 14 are located, and is slidably connected to both ends of the X-axis direction slide rail 12, so that the positioning fixture can move freely in the X-axis direction and the Z-axis direction.
The annular fixing base 2 of the positioning fixture is slidably mounted on the X-axis direction slide rail 12, and is parallel to the plane where the first Y-axis direction slide rail 13 and the second Y-axis direction slide rail 14 are located.
In this embodiment, the positioning jig can freely move on the X-axis direction slide rail 12, the first Y-axis direction slide rail 13 and the second Y-axis direction slide rail 14 are arranged in parallel, the first Z-axis direction slide rail 15 and the second Z-axis direction slide rail 16 are also arranged in parallel, but a plane where the first Y-axis direction slide rail 13 and the second Y-axis direction slide rail 14 are located is perpendicular to a plane where the first Z-axis direction slide rail 15 and the second Z-axis direction slide rail 16 are located, and the first Z-axis direction slide rail 15 and the second Z-axis direction slide rail 16 are slidably connected to the first Y-axis direction slide rail 13 or the second Y-axis direction slide rail 14 and are also slidably connected to the X-axis direction slide rail 12. Consequently, positioning fixture can carry out X, Y, Z three directions free movements of axle, realizes multidirectional regulation, and accurate simulation lathe motion can adjust cutter 3 detection position in a flexible way, makes the measurement personnel operation more convenient, has solved when current cutter 3 wearing and tearing detection device detects cutter 3 wearing and tearing, need pull down cutter 3 from the handle of a knife and the problem that detection efficiency that causes reduces, has further promoted the detection efficiency of cutter 3 wearing and tearing.
In this embodiment, the experiment platform is of an aluminum profile structure, X-axis direction slide rail 12, first Y-axis direction slide rail 13, second Y-axis direction slide rail 14, first Z-axis direction slide rail 15 and second Z-axis direction slide rail 16 are all provided with trapezoidal grooves, the trapezoidal grooves are fixed with each slide rail through bolts and nuts, when detecting tool 3, the positions of the trapezoidal grooves can be adjusted by loosening the bolts, and the trapezoidal grooves in each slide rail are locked by tightening the bolts, so that the flexible movement and locking fixation of the positioning clamp on each slide rail of the experiment platform are realized.
The supporter 17 of experiment platform is equipped with the multilayer tray, can place 3 wearing and tearing detection tools of all kinds of cutters, and it is more convenient, swift when making the measurement personnel place, take the instrument to detection efficiency has further been improved. In addition, the experiment platform still includes pull rod 18 and a plurality of universal wheel 19, pull rod 18 is located on the surface of supporter 17, through the pulling pull rod 18 moves as a whole the experiment platform. It is a plurality of universal wheel 19 locates supporter 17's bottom, and have the lock wheel structure, it is more convenient when making the measurement personnel use, the lock wheel structure can die universal wheel 19 lock, prevents that the experiment platform from sliding, has effectively ensured the safety of cutter 3 on the 3 positioning fixture of cutter.
According to the invention, the positioning fixture and the experiment platform are matched for use, so that the positioning, clamping and flexible movement of the cutter 3 are realized, and the cutter does not need to be reset after detection, so that the problem of manual error caused by the fact that the cutter 3 needs to be reset after the abrasion detection of the existing cutter 3 abrasion detection device is solved, and the processing precision is further improved.
In the present specification, the emphasis points of the embodiments are different from those of the other embodiments, and the same and similar parts among the embodiments may be referred to each other. The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A positioning fixture for tool wear detection, comprising:
the clamping mechanism is arranged on the annular fixed base and used for clamping and stretching a tool shank of a tool to be measured; the annular fixed base is used for supporting the cutter to be measured;
the inner circle diameter size of the annular fixed base is larger than the limit accommodating size of the clamping mechanism in the full-relaxation state;
the rotating bottom plate is arranged in the inner circle of the annular fixed base or on the upper surface of the annular fixed base, the shell is buckled on the rotating bottom plate, and the shell is fixedly connected with the rotating bottom plate; the clamping mechanism is arranged between the shell and the rotating bottom plate; a through hole communicated with the clamping port of the clamping mechanism is formed in the middle of the shell, and the clamping mechanism is used for clamping the tool shank of the tool to be measured at the inner side of the through hole;
the clamping mechanism comprises a lower fixing block and at least three clamping eccentric wheels;
the bottom of the lower fixing block is fixedly connected with the annular fixing base, and a groove is formed in the top of the lower fixing block;
the clamping eccentric wheel comprises a supporting column, a sliding column and an eccentric wheel, the bottom end of the supporting column is fixedly connected with the rotating bottom plate, the center of the eccentric wheel is sleeved on the supporting column, the wheel edge of the eccentric wheel is fixedly connected with the sliding column, and the sliding column is slidably arranged in the groove;
through rotating the shell, drive the rotating bottom plate with the support column rotates, make the slip post slide in the recess, realize opening of clamping mechanism, the antiport the shell realizes clamping mechanism's clamp is tight.
2. The positioning fixture according to claim 1, wherein the clamping mechanism further comprises an upper fixing block, the upper fixing block is connected with the lower fixing block, and a groove formed in the lower surface of the upper fixing block is opposite to a groove formed in the top of the lower fixing block.
3. The positioning jig of claim 1, wherein the groove is an arc-shaped groove provided along a sliding direction of the sliding column.
4. The localization fixture of claim 1, wherein the housing is fixedly connected to the rotating base plate by a link.
5. The positioning fixture according to claim 4, wherein the annular fixing base is provided with positioning pins having the same number as the number of the connecting rods, each positioning pin is connected with the corresponding connecting rod through a spring, and the spring is used for driving the clamping mechanism to return to the clamping state by utilizing the deformed elastic force after being expanded.
6. The positioning fixture according to claim 1, wherein a rotation rod is disposed on the housing, and the rotation rod rotates to drive the housing and the rotation bottom plate to rotate, so as to clamp and open the clamping mechanism.
7. An experiment platform, which is characterized in that the experiment platform comprises the positioning fixture, an X-axis direction slide rail, a first Y-axis direction slide rail, a second Y-axis direction slide rail, a first Z-axis direction slide rail, a second Z-axis direction slide rail and a storage rack according to any one of claims 1 to 3;
the first Y-axis direction sliding rail and the second Y-axis direction sliding rail are arranged on the outer surface of the top of the storage rack in parallel;
one end of each of the first Z-axis direction slide rail and the second Z-axis direction slide rail is slidably connected with the first Y-axis direction slide rail or the second Y-axis direction slide rail respectively, and the other end of each of the first Z-axis direction slide rail and the second Z-axis direction slide rail extends vertically and upwards along a plane where the first Y-axis direction slide rail and the second Y-axis direction slide rail are located and is slidably connected with two ends of the X-axis direction slide rail;
the annular fixing base of the positioning fixture is slidably mounted on the X-axis direction slide rail and is parallel to the plane where the first Y-axis direction slide rail and the second Y-axis direction slide rail are located.
8. The assay platform of claim 7, comprising: the pull rod is arranged on the outer surface of the commodity shelf, and the universal wheels are arranged at the bottom of the commodity shelf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110148084.3A CN112872908B (en) | 2021-02-03 | 2021-02-03 | Positioning fixture for cutter wear detection and experiment platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110148084.3A CN112872908B (en) | 2021-02-03 | 2021-02-03 | Positioning fixture for cutter wear detection and experiment platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112872908A CN112872908A (en) | 2021-06-01 |
| CN112872908B true CN112872908B (en) | 2021-12-28 |
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| CN114559113B (en) * | 2022-03-07 | 2023-09-01 | 东莞吉鑫五金科技有限公司 | Thread milling cutter suitable for multiple thread machining |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103245672A (en) * | 2013-05-16 | 2013-08-14 | 西北工业大学 | Fixture for detecting tool wear |
| CN104647138A (en) * | 2013-11-19 | 2015-05-27 | 湖北文理学院 | Microcomputer monitoring device for monitoring wear condition of milling cutter of milling machine |
| CN111412839A (en) * | 2020-03-30 | 2020-07-14 | 天津大学 | Vertical milling cutter line laser on-machine wear state detection experiment table and detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245672A (en) * | 2013-05-16 | 2013-08-14 | 西北工业大学 | Fixture for detecting tool wear |
| CN104647138A (en) * | 2013-11-19 | 2015-05-27 | 湖北文理学院 | Microcomputer monitoring device for monitoring wear condition of milling cutter of milling machine |
| CN111412839A (en) * | 2020-03-30 | 2020-07-14 | 天津大学 | Vertical milling cutter line laser on-machine wear state detection experiment table and detection method |
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