CN115179082A - Tool conveying mechanism of chain type tool magazine - Google Patents
Tool conveying mechanism of chain type tool magazine Download PDFInfo
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- CN115179082A CN115179082A CN202211091436.7A CN202211091436A CN115179082A CN 115179082 A CN115179082 A CN 115179082A CN 202211091436 A CN202211091436 A CN 202211091436A CN 115179082 A CN115179082 A CN 115179082A
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/1554—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention relates to the technical field of chain type tool magazines, in particular to a tool conveying mechanism of a chain type tool magazine, which comprises: a support; the sliding rail set comprises a first straight rail, a bent rail and a second straight rail, the first straight rail is arranged on the support, the second straight rail is arranged on the machine tool upright post, and two ends of the bent rail outwards extend out of the connecting straight section along a tangent line; the rail car is used for moving between two tool changing points of the chain type tool magazine and the main shaft, and comprises a supporting seat, and a roller group and a driving assembly which are arranged in the supporting seat, wherein the roller group is attached to two side surfaces of the sliding rail group; the first straight rail is fixedly connected with the connecting straight section of the corresponding end, one end of the bent rail far away from the first straight rail is provided with an oil cylinder, one end of the second straight rail close to the oil cylinder is provided with a positioning frame, and the driving end of the oil cylinder extends into a positioning sleeve of the positioning frame. The oil cylinder has an automatic positioning function on the second straight rail, the phenomenon of overlapping and dislocation at the butt joint is avoided, the motion stability of the rail car is ensured, and the positioning precision of the cutter changing arm is effectively ensured.
Description
Technical Field
The invention relates to the technical field of chain type tool magazines, in particular to a tool conveying mechanism of a chain type tool magazine.
Background
With the increasing popularity of automatic processing machine tools, matched machine tool magazines have been widely used. Such as a disc type tool magazine, a turret type tool magazine, a linear type tool magazine, a combined tool magazine and the like, for some large horizontal machine tools, the tool magazine is not beneficial to improving the machining efficiency of the machine tool because the center of a main shaft is far away from a vertical cylindrical surface.
The existing chain type tool magazine adopts a slide rail transmission structure, one end of a slide rail is connected with the tool magazine, the other end of the slide rail is arranged at a spindle, and a tool changing device moves on a guide rail through a rail car, so that a tool changing arm is driven to complete a series of actions of translation, tool changing, translation and tool mounting, and the action processes of tool taking of the tool changer in the tool magazine and tool changing of a machine tool spindle are realized.
In order to reduce the load of a machine tool, a section of slide rail close to a main shaft moves along with a machine tool upright post, but when a tool changer carries out tool changing on the main shaft, the butt joint of the slide rail is easy to overlap and dislocate, so that the rail car is caused to jump or block, the running stability of the rail car is poor, and the positioning precision of a tool changing arm is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a fortune sword mechanism of chain formula tool magazine effectively solves the problem in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that: a knife conveying mechanism for a chain type knife magazine, comprising:
the bracket is fixed on the chain type tool magazine;
the sliding rail set comprises a first straight rail, a bent rail and a second straight rail, the first straight rail is arranged on the bracket, the second straight rail is arranged on the machine tool upright post, the bent rail is provided with an arc-shaped section, and two ends of the arc-shaped section outwards extend out along the tangential direction to form a connecting straight section connected with the first straight rail and the second straight rail;
the rail car is used for driving the tool changing device to move between two tool changing points of the chain type tool magazine and the main shaft, and comprises a supporting seat, and a roller group and a driving assembly which are arranged in the supporting seat, wherein the roller group is attached to two side surfaces of the sliding rail group;
the first straight rail and the second straight rail are parallel to the corresponding ends of the connecting straight sections, an oil cylinder is arranged at one end of the first straight rail, a positioning frame is arranged at one end, close to the oil cylinder, of the second straight rail, a positioning sleeve is arranged on one side, facing the oil cylinder, of the positioning frame, and the driving end of the oil cylinder stretches into the positioning sleeve.
Furthermore, the driving assembly comprises a hydraulic motor, a chain wheel and a chain, the chain extends along the length direction of the slide rail group, the hydraulic motor is fixed on the supporting seat, and the chain wheel is fixedly sleeved on a driving shaft of the hydraulic motor;
the hydraulic motor drives the chain wheel to rotate, and the chain wheel is matched with the chain, so that the rail car moves along the length direction of the chain.
Furthermore, an in-place signal block and a slow signal block are arranged on the first straight rail and the second straight rail, and a locking signal block is arranged on the second straight rail;
and one end of the first straight rail, which is close to the bent rail, is provided with a bent rail in-place signal block and a bent rail slow-speed signal block.
Furthermore, the supporting seat is of a C-shaped structure, the opening of the supporting seat faces the support, and the supporting seat comprises a top plate, a bottom plate and side plates;
two groups of roller groups are arranged on the opposite surfaces of the top plate and the bottom plate along the direction of the cutter conveying track, and the roller groups on the two opposite surfaces are symmetrically arranged;
the roller group comprises a front roller and a rear roller, the rear roller is arranged on the opening side of the bracket, the front roller is arranged on one side close to the side plate, and the sliding rail group is positioned between the front roller and the rear roller;
the two groups of roller groups positioned on the same horizontal plane are symmetrically arranged, and the center distance between the two front rollers is larger than the center distance between the two rear rollers.
Further, the front roller and the rear roller respectively comprise a fixed shaft and an outer sleeve, and the outer sleeve is rotatably arranged on the fixed shaft through a bearing set;
the outer sleeve is provided with a guide interface and a support interface, and the support interface on the rear roller is in a uniform divergence state along the axis in the direction away from the sliding rail group;
and one side of the sliding rail group, which is contacted with the rear roller, is provided with an inclined pushing surface which is attached to the supporting interface.
Further, the bearing set includes a first bearing and a second bearing disposed in an annular gap of the fixed shaft and the outer sleeve;
an annular boss is arranged in an inner hole of the outer sleeve, an upper step surface and a lower step surface of the annular boss are respectively abutted against outer rings of the first bearing and the second bearing, a first spacer ring is sleeved on the fixed shaft at a position corresponding to the annular boss, and the first spacer ring is abutted against inner rings of the first bearing and the second bearing;
a gap exists between the outer sleeve and the inner surface of the support, a second spacer ring is arranged in the gap, and the second spacer ring is sleeved on the fixed shaft and abuts against the inner ring of the second bearing;
one end of the fixed shaft, which extends out of the sleeve, is in threaded connection with a locking nut, and the locking nut axially clamps the first bearing through a locking ring;
one end of the fixed shaft, which is far away from the outer sleeve, is provided with a T-shaped anti-rotation platform, and the T-shaped anti-rotation platform is embedded into the placing groove of the supporting seat.
Furthermore, a bent rail frame is arranged on the support, and the free end of the bent rail frame is fixedly connected with the bent rail;
the detection device is arranged on the bent rail frame and comprises a driving piece arranged on the bent rail frame, a swing arm connected with a driving rod of the driving piece and a detection assembly arranged at the end part of the swing arm, and the detection assembly is used for detecting the splicing seam of the bent rail and the second straight rail;
the swing arm comprises a first support arm, a second support arm, a horizontal driving assembly and a vertical driving assembly, and the first support arm and the second support arm are arranged vertically;
the vertical driving assembly is arranged at one end, far away from the first supporting arm, of the second supporting arm, is connected with the detection assembly and is used for driving the detection assembly to move along the vertical direction;
the horizontal driving assembly is arranged on the first supporting arm and used for driving the second supporting arm to move along the direction parallel to the first supporting arm, and the moving path of the horizontal driving assembly covers the abutted seam of the curved rail and the second straight rail;
wherein, the detecting component includes the mount pad, is U type structure, including first detection portion and second detection portion, first detection portion with all be equipped with measuring bar and SMD pressure sensor in the second detection portion, the measuring bar stretches out the detecting head of mount pad with the glide plane laminating of the straight rail of second, the other end with the laminating of SMD pressure sensor.
Furthermore, the horizontal driving assembly comprises a second oil cylinder, a guide rail and a sliding block, the sliding block is arranged on the guide rail in a sliding manner, the second oil cylinder is arranged on the vertical plate of the first supporting arm, the guide rail is arranged on the horizontal plate of the first supporting arm, and the sliding block is connected with the second supporting arm;
the vertical driving assembly comprises a supporting suspension and a third oil cylinder, the supporting suspension is arranged at the free end of the second supporting arm, the third oil cylinder is arranged on the supporting suspension, and a driving rod of the third oil cylinder is connected with the mounting seat.
Furthermore, a reset cavity and an induction cavity are arranged in the first detection part and the second detection part;
the resetting cavity is arranged at one side close to the sliding rail group, the patch type pressure sensor is arranged in the sensing cavity, and the detection rod penetrates through the resetting cavity to be attached to the patch type pressure sensor;
the utility model discloses a slide rail group detection device, including a detection pole, the detection pole is located the cover is equipped with dog and spring on the axial region in chamber that resets, the dog spiro union be in on the detection pole, and with the lateral wall contact in chamber that resets, its the one end butt of spring is in on the dog, the other end butt is in the chamber that resets with on the baffle in response chamber, be used for right the detection pole is in when the slide rail group detects, reset.
Furthermore, the probe comprises a guide seat and a pinch roller arranged in the guide seat, the rotation axis of the pinch roller is parallel to the rotation axis of the roller group, and the rolling arc surface of the pinch roller protrudes out of the guide seat and is attached to the sliding surface of the sliding rail group;
the outer edge of the guide seat is symmetrically provided with mounting grooves for mounting the pinch roller, the mounting grooves comprise a first sliding groove parallel to the axis of the guide seat and a second sliding groove perpendicular to the first sliding groove, and the first sliding groove extends to one end face, close to the sliding rail group, of the guide seat;
the position of the guide seat, which is positioned in the mounting groove, is provided with a horizontal anti-rotation surface, a guide plate is arranged at the position of the guide seat, which corresponds to the horizontal anti-rotation surface, and the guide plate is fixed on the mounting seat and is attached to the horizontal anti-rotation surface;
the guide plate is provided with a guide groove, the length direction of the guide groove is parallel to the axis of the detection rod, and the two end parts of the pinch roller penetrate through the corresponding guide grooves and are locked through bolts.
The invention has the beneficial effects that: according to the invention, through the arrangement of the oil cylinder, the automatic positioning function is realized on the second straight rail, the supporting strength of the bent rail and the second straight rail at the splicing part is increased, the phenomenon of overlapping and dislocation at the butt joint part is avoided, the motion stability of a rail car is ensured, and the positioning precision of the tool changing arm is effectively ensured.
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 following description are only some embodiments described in 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 front isometric view of a knife carriage mechanism of the chain magazine according to an embodiment of the present invention;
FIG. 2 is a rear isometric view of the knife carriage mechanism of the chain magazine in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a rail car according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a slide rail set according to an embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view of a railcar in an embodiment of the present invention at a curved track;
FIG. 6 is a schematic diagram illustrating the attachment of the rear roller to the rail set according to the embodiment of the present invention;
FIG. 7 is an exploded view of the front roller according to the embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 6 at A;
FIG. 9 is an enlarged view of a portion of FIG. 8 at B;
FIG. 10 is a cross-sectional view of a rear roller in an embodiment of the present invention;
FIG. 11 is a schematic view of the installation of the detecting device on the curved rail frame according to the embodiment of the present invention;
FIG. 12 is a schematic view of a detecting device according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of a detection assembly in an embodiment of the present invention;
FIG. 14 is a schematic diagram of the internal structure of the first detecting portion and the second detecting portion in the embodiment of the present invention;
FIG. 15 is a schematic view of a test rod according to an embodiment of the present invention;
FIG. 16 is an enlarged view of a portion of FIG. 14 at C;
FIG. 17 is a schematic view of an initial state of the detecting device according to the embodiment of the present invention;
FIG. 18 is a schematic diagram of the detecting device in the embodiment of the present invention;
FIG. 19 is a schematic view of the start of testing by the testing device in accordance with the embodiment of the present invention;
FIG. 20 is a schematic view illustrating the detection of the detecting device according to the embodiment of the present invention.
Reference numerals are as follows: 1. a support; 2. a slide rail set; 21. a first straight rail; 22. bending the rail; 221. an arc-shaped section; 222. connecting the straight sections; 23. a second straight rail; 3. a rail car; 31. a supporting seat; 311. a top plate; 312. a base plate; 313. a side plate; 32. a roller set; 321. a front roller; 3211. a fixed shaft; 3212. an outer sleeve; a. a guidance interface; b. a support interface; 3213. a bearing set; 3214. a first spacer ring; 3215. a second spacer ring; 3216. locking the nut; 3217. locking ring; 322. a rear roller; 33. a drive assembly; 331. a hydraulic motor; 332. a sprocket; 333. a chain; 4. an oil cylinder; 5. a positioning frame; 6. a bit signal block; 7. a slow signal block; 8. locking the signal block; 9. bending the rail to a position signal block; 10. a rail bending slow signal block; 11. bending a rail frame; 100. a detection device; 110. a drive member; 120. swinging arms; 121. a first support arm; 122. a second support arm; 123. a horizontal drive assembly; 124. a vertical drive assembly; 130. a detection component; 130a, a first detection unit; 130b, a second detection unit; 131. a detection lever; 1311. a probe head; 1311a, a guide seat; c. mounting grooves; d. horizontally preventing the surface from rotating; 1312a, a pressing wheel; 1313a, a guide plate; 132. a patch type pressure sensor; 133. a reset chamber; 134. an induction cavity; 135. a stopper; 136. a spring.
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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The knife conveying mechanism of the chain type knife magazine shown in fig. 1 to 20 comprises: the tool magazine comprises a support 1, a slide rail group 2 and a rail car 3, wherein the support 1 is fixed on the chain type tool magazine; the slide rail set 2 comprises a first straight rail 21, a bent rail 22 and a second straight rail 23, the first straight rail 21 is arranged on the support 1, the second straight rail 23 is arranged on a machine tool upright post, the bent rail 22 is provided with an arc-shaped section 221, and two ends of the arc-shaped section 221 outwards extend out along the tangential direction to form a connecting straight section 222 connected with the first straight rail 21 and the second straight rail 23; the rail car 3 is used for driving the tool changing device to move between two tool changing points of the chain type tool magazine and the main shaft, and comprises a supporting seat 31, a roller group 32 and a driving assembly 33, wherein the roller group 32 and the driving assembly 33 are arranged in the supporting seat 31, and the roller group 32 is attached to two side faces of the sliding rail group 2; the first straight rail 21 and the second straight rail 23 are arranged in parallel with the corresponding connecting straight section 222, an oil cylinder 4 is arranged at one end of the curved rail 22 far away from the first straight rail 21, a positioning frame 5 is arranged at one end of the second straight rail 23 close to the oil cylinder 4, a positioning sleeve is arranged on one side of the positioning frame 5 facing the oil cylinder 4, and the driving end of the oil cylinder 4 extends into the positioning sleeve.
When the spindle needs to be subjected to tool changing after machining is finished, the second straight rail 23 on the machine tool upright post moves towards the curved rail 22 and is in butt joint with the connecting straight section 222 of the curved rail 22, the tool changing device synchronously finishes tool taking at the moment, after the second straight rail 23 is in butt joint with the curved rail 22, the oil cylinder 4 starts to act, the driving end of the oil cylinder extends into the positioning hole of the positioning frame 5, the driving assembly 33 drives the railcar 3 to move between two tool changing points along the sliding track of the sliding rail set 2, so that the spindle tool taking and changing are finished, after the spindle finishes tool changing, the railcar 3 returns to the tool changing point of the tool magazine in the original way, the changed tool is returned to the tool magazine, the driving end of the oil cylinder 4 is separated from the positioning sleeve, and the machine tool upright post moves to the spindle machining position. The slide rail group 2 in the invention adopts a split structure, the second straight rail 23 is butted with the bent rail 22 during tool changing, the tool is conveyed remotely, the tool magazine is far away from the upright column, the machining area is enlarged, the machine tool performance is improved, the automatic positioning function is realized on the second straight rail 23 through the arrangement of the oil cylinder 4, the supporting strength of the bent rail 22 and the second straight rail 23 at the splicing part is increased, the phenomenon of overlapping and dislocation at the splicing part is avoided, the motion stability of the rail car 3 is ensured, and the positioning precision of the tool changing arm is effectively ensured.
In the process that the rail car 3 moves along the sliding track at two tool changing points, the driving assembly 33 drives the rail car 3 to move, and in order to ensure that the sliding track of the rail car 3 covers the whole sliding rail set 2, specifically, as shown in fig. 3, the driving assembly 33 includes a hydraulic motor 331, a chain wheel 332 and a chain 333, the chain 333 extends along the length direction of the sliding rail set 2, the hydraulic motor 331 is fixed on the supporting seat 31, and the chain wheel 332 is fixedly sleeved on the driving shaft of the hydraulic motor 331; the hydraulic motor 331 drives the chain wheel 332 to rotate, the chain wheel 332 is matched with the chain 333, the railcar 3 is enabled to move along the length direction of the chain 333, and buffering parts are arranged at the end parts of the first straight rail 21 and the second straight rail 23, so that the phenomenon that the railcar 3 is derailed or collided at the end parts is effectively avoided.
In order to ensure the stability of the movement of the rail car 3 on the slide rail set 2, the speed of the rail car 3 passing through the curved rail 22 needs to be lower than that of the straight rail, therefore, as shown in fig. 4, an in-place signal block 6 and a slow signal block 7 are arranged on the first straight rail 21 and the second straight rail 23, when the rail car 3 moves to a tool changing point of a spindle and a tool magazine, the sliding speed can be adjusted, so as to avoid the occurrence of a collision phenomenon, when the rail car 3 slides to the tool changing point of the second straight rail 23, in order to ensure the stability of the spindle tool changing, the second straight rail 23 is also provided with a locking signal block 8, so that the tool changing arm avoids the phenomenon that the rail car 3 shakes during the tool changing process, so as to influence the tool changing precision, thereby effectively ensuring the stability of the rail car 3 at the tool changing point, in addition, because the speed of the rail car 3 on the first straight rail 21 is from fast to slow, and in-order to ensure that the speed of the rail car 3 after the speed reduction car does not appear to be stuck when passing through the curved rail 22, the first straight rail 21 is provided with the curved rail 22, the speed signal block 9 and the speed of the curved rail 22 are set to further, so as to ensure that the efficiency of the speed of the straight rail 3 on the curved rail can be higher than that the speed of the curved rail 3 can be higher than the speed of the curved rail can be set on the curved rail 3, and the efficiency of the curved rail can be higher than the speed of the curved rail.
In the invention, the tool changing device is arranged on the rail car 3 to ensure the integrity of the rail car 3The structural strength of the tool changer is high, and the stability and reliability of the tool changer in the tool changing process are ensured, specifically, as shown in fig. 3-5, the supporting seat 31 is in a C-shaped structure, the opening of the supporting seat faces the support 1, and the supporting seat comprises a top plate 311, a bottom plate 312 and side plates 313; two groups of roller groups 32 are arranged on the opposite surfaces of the top plate 311 and the bottom plate 312 along the direction of the cutter conveying track, and the roller groups 32 on the two opposite surfaces are symmetrically arranged; the roller group 32 comprises a front roller 321 and a rear roller 322, the rear roller 322 is arranged at the opening side of the bracket 1, the front roller 321 is arranged at one side close to the side plate 313, the slide rail group 2 is arranged between the front roller 321 and the rear roller 322, the front roller 321 and the rear roller 322 are rolled and attached along the side surface of the slide rail group 2, the rail car 3 is provided with a bidirectional positioning support in the horizontal direction and the vertical direction, the sliding stability of the rail car 3 on the slide rail group 2 is ensured, the tool changing precision of the tool changing arm is further ensured, when the rail car 3 passes through the curved rail 22, two groups of roller groups 32 on the same horizontal plane are symmetrically arranged, the front roller 321 is tangent to the outer convex surface of the slide rail group 2, the rear roller 322 is tangent to the inner concave surface of the slide rail group 2, because the arc length of the outer convex surface is greater than that of the inner concave surface, in order to enable the rail car 3 to smoothly slide on the curved rail 22, the center distance O between the two front rollers 321 1 Greater than the center distance O between the two rear rollers 322 2 。
As the tool changing device is arranged at one side of the rail car 3, the rail car 3 generates a downward force to the spindle when the spindle is pulled out or inserted, as shown in fig. 6-10, the front roller 321 and the rear roller 322 both comprise a fixed shaft 3211 and an outer sleeve 3212, and the outer sleeve 3212 is rotatably arranged on the fixed shaft 3211 through a bearing set 3213; the outer sleeve 3212 is provided with a guiding interface a and a supporting interface b, and the supporting interface b on the rear roller 322 is in a uniform diverging state along the axial line in the direction away from the sliding track set 2; and one side of the rail set 2 contacting the rear roller 322 is provided with an inclined pushing surface fitting with the support interface b, the support interface b of the rear roller 322 fits with the inclined pushing surface, when the rail car 3 slides on the rail set 2, the guide interface a performs transverse limit on the rail set 2, and the support interface b performs longitudinal limit on the rail set 2, thereby ensuring the stability of the rail car 3 in sliding.
On the basis of the above embodiment, the bearing set 3213 includes a first bearing and a second bearing disposed in an annular gap between the fixed shaft 3211 and the outer sleeve 3212; an annular boss is arranged in an inner hole of the outer sleeve 3212, an upper step surface and a lower step surface of the annular boss are abutted to outer rings of the first bearing and the second bearing respectively, a first spacer ring 3214 is sleeved on a position, corresponding to the annular boss, of the fixing shaft 3211, and the first spacer ring 3214 is abutted to inner rings of the first bearing and the second bearing; in order to ensure the feasibility of the rotation of the outer sleeve 3212, a gap exists between the outer sleeve 3212 and the inner surface of the bracket 1, a second spacer ring 3215 is arranged in the gap, and the second spacer ring 3215 is sleeved on the fixed shaft 3211 and abuts against the inner ring of the second bearing; one end of the fixing shaft 3211 extending out of the sleeve is in threaded connection with a locking nut 3216, and the locking nut 3216 axially clamps the first bearing through a locking ring 3217; one end of the fixed shaft 3211, which is far away from the outer sleeve 3212, is provided with a T-shaped rotation prevention platform, and the T-shaped rotation prevention platform is embedded into the placement groove of the support seat 31.
On the basis of the above embodiment, the curved rail frame 11 is arranged on the support 1, and the free end of the curved rail frame 11 is fixedly connected with the curved rail 22, so that the supporting strength of the curved rail 22 is ensured, and the reliability of the rail car 3 sliding on the curved rail 22 is improved.
The sliding rail set 2 adopts a split structure, in the process of machining the main shaft, the second straight rail 23 moves along with the main shaft, the rail car 3 is positioned at a tool changing point of the first straight rail 21, when the main shaft needs to change a tool, the main shaft moves to the tool changing point, at the moment, the second straight rail 23 is spliced with the bent rail 22 and is in parallel butt joint with the connecting straight section 222 of the bent rail 22, then the splicing of the sliding rail set 2 is realized through the oil cylinder 4 at the position of the bent rail 22 and the positioning frame 5 on the second straight rail 23, and after the splicing of the sliding rail set 2 is completed, the rail car 3 slides between the two tool changing points along the sliding track of the sliding rail set 2, so that the tool changing of the main shaft is realized; however, when the second straight rail 23 and the curved rail 22 are butted in parallel, it is difficult to ensure the butting accuracy, so that the cylinder 4 and the positioning frame 5 need to be adjusted for multiple times to realize positioning and splicing, and the tool changing efficiency is affected, therefore, as shown in fig. 11-12, a detection device 100 is arranged on the curved rail frame 11, and includes a driving member 110 arranged on the curved rail frame 11, a swing arm 120 connected with a driving rod of the driving member 110, and a detection assembly 130 arranged at an end of the swing arm 120, the detection assembly 130 is used for detecting the butt joint between the curved rail 22 and the second straight rail 23, so as to ensure the butting accuracy between the second straight rail 23 and the curved rail 22, and improve the splicing efficiency, specifically, the swing arm 120 includes a first supporting arm 121, a second supporting arm 122, a horizontal driving assembly 123, and a vertical driving assembly 124, and the first supporting arm 121 and the second supporting arm 122 are arranged vertically to each other; the vertical driving assembly 124 is disposed at an end of the second supporting arm 122 away from the first supporting arm 121, and is connected to the detecting assembly 130, for driving the detecting assembly 130 to move along the vertical direction; the horizontal driving component 123 is arranged on the first supporting arm 121 and is used for driving the second supporting arm 122 to move along the direction parallel to the first supporting arm 121, and the moving path of the horizontal driving component covers the seam between the curved rail 22 and the second straight rail 23; wherein, in order to further guarantee the splicing precision of the second straight rail 23 and the curved rail 22, preferably, as shown in fig. 13, the detection assembly 130 comprises a mounting seat, is of a U-shaped structure, and comprises a first detection portion 130a and a second detection portion 130b, wherein a detection rod 131 and a patch type pressure sensor 132 are arranged in the first detection portion 130a and the second detection portion 130b, a detection head 1311 of the detection rod 131 extending out of the mounting seat is attached to the sliding surface of the second straight rail 23, and the other end is attached to the patch type pressure sensor 132. Splice department detects simultaneously through first detection portion 130a and second detection portion 130b, has simulated railcar 3's slip state, has reduced detection error, has improved and has detected the precision, has effectively guaranteed preceding gyro wheel 321 and back gyro wheel 322 at the gliding stability of splice department, has improved the precision of tool changing point position on the tool changing arm.
In order to facilitate the installation of the parts in the first detection part 130a and the second detection part 130b, detachable cover plates are arranged on the first detection part 130a and the second detection part 130b, and the detachable cover plates are slidably inserted at the end parts of the first detection part 130a and the second detection part 130b, so that the detection rod 131 and the patch type pressure sensor 132 are protected, the detection accuracy is effectively ensured, and the service life of the sensor is prolonged.
On the basis of the above embodiment, preferably, as shown in fig. 12, the horizontal driving assembly 123 includes a second oil cylinder, a guide rail and a slider, the slider is slidably disposed on the guide rail, the second oil cylinder is disposed on the vertical plate of the first supporting arm 121, the guide rail is disposed on the horizontal plate of the first supporting arm 121, and the slider is connected with the second supporting arm 122; the vertical drive assembly 124 comprises a support suspension arranged at the free end of the second support arm 122 and a third cylinder 4 arranged on the support suspension, the actuating rod of which is connected to the mounting.
When the second straight rail 23 is spliced with the curved rail 22, the driving element 110 drives the first supporting arm 121 to rotate to be parallel to the second straight rail 23, and simultaneously the horizontal driving assembly 123 drives the second supporting arm 122 to move in a direction away from the curved rail 22, at this time, the second supporting arm 122 is perpendicular to the second straight rail 23, the vertical driving assembly 124 drives the mounting seat to move downwards, so that the first detecting part 130a and the second detecting part 130b are both positioned at two sides of the second straight rail 23, the detecting rod 131 inside the first detecting part 130a and the second detecting part 130b is in contact with the sliding surface of the second straight rail 23, the horizontal driving assembly 123 drives the second supporting arm 122 to move in a direction towards the curved rail 22, so that the first detecting part 130a and the second detecting part 130b slide from the second straight rail 23 to the connecting straight section 222 of the curved rail 22, and whether dislocation occurs is judged according to pressure value changes of the patch type pressure sensor 132 inside the first detecting part 130a and the second detecting part 130 b.
On the basis of the above embodiment, as shown in fig. 14, the first detection portion 130a and the second detection portion 130b are both provided with the reset cavity 133 and the sensing cavity 134 therein; the reset cavity 133 is arranged at one side close to the slide rail group 2, the patch type pressure sensor 132 is arranged in the induction cavity 134, and the detection rod 131 penetrates through the reset cavity 133 to be attached to the patch type pressure sensor 132; the detection rod 131 is sleeved with a stop 135 and a spring 136 on a shaft section of the reset cavity 133, the stop 135 is screwed on the detection rod 131 and contacts with the side wall of the reset cavity 133, one end of the spring 136 abuts against the stop 135, and the other end abuts against a partition board of the reset cavity 133 and the sensing cavity 134, so that the detection rod 131 resets in the detection process of the slide rail set 2.
As a preferred embodiment, the detecting head 1311 includes a guide seat 1311a, and a pressing wheel 1312a disposed in the guide seat 1311a, a rotation axis of the pressing wheel 1312a is parallel to a rotation axis of the roller set 32, and a rolling arc surface of the pressing wheel 1312a protrudes out of the guide seat 1311a and is attached to a sliding surface of the sliding rail set 2; in order to improve the installation efficiency of the pressing wheel 1312a in the guide seat 1311a, the outer edge of the guide seat 1311a is symmetrically provided with an installation groove c for installing the pressing wheel 1312a, which includes a first sliding groove parallel to the axis of the guide seat 1311a and a second sliding groove perpendicular to the first sliding groove, and the first sliding groove extends to one end surface of the guide seat 1311a close to the sliding rail set 2.
When the rail car 3 slides along the sliding surface of the sliding rail set 2, the pinch roller 1312a rotates around the axis of the pinch roller 1312a, the rolling direction of the pinch roller 1312a is the same as the sliding direction of the rail car 3, in order to avoid the influence of the rotation of the detection rod 131 on the rolling direction of the pinch roller 1312a, a horizontal anti-rotation surface d is arranged at the position, located in the installation groove c, of the guide seat 1311a, a guide plate 1313a is arranged at the position, corresponding to the horizontal anti-rotation surface d, and the guide plate 1313a is fixed on the installation seat and attached to the horizontal anti-rotation surface d; when the rotation of the detection rod 131 is limited by the attachment of the guide plate 1313a and the horizontal rotation-preventing surface d, the detection rod 131 is enabled to have a certain displacement in the axial direction in the detection process, and acts on the patch type pressure sensor 132 to enable the patch type pressure sensor to generate a pressure value change, a guide groove is arranged on the guide plate 1313a, the length direction of the guide groove is parallel to the axis of the detection rod 131, two end portions of the pressing wheel 1312a penetrate through the corresponding guide grooves to be locked through bolts, and the feasibility of axial movement of the detection rod 131 is guaranteed.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A fortune sword mechanism of chain formula tool magazine which characterized in that includes:
the bracket is fixed on the chain type tool magazine;
the sliding rail set comprises a first straight rail, a bent rail and a second straight rail, the first straight rail is arranged on the bracket, the second straight rail is arranged on a machine tool upright post, the bent rail is provided with an arc-shaped section, and two ends of the arc-shaped section outwards extend out along the tangential direction to form a connecting straight section connected with the first straight rail and the second straight rail;
the rail car is used for driving the tool changing device to move between two tool changing points of the chain type tool magazine and the main shaft, and comprises a supporting seat, and a roller group and a driving assembly which are arranged in the supporting seat, wherein the roller group is attached to two side surfaces of the sliding rail group;
the first straight rail and the second straight rail are parallel to the corresponding ends of the connecting straight sections, an oil cylinder is arranged at one end of the first straight rail, a positioning frame is arranged at one end, close to the oil cylinder, of the second straight rail, a positioning sleeve is arranged on one side, facing the oil cylinder, of the positioning frame, and the driving end of the oil cylinder stretches into the positioning sleeve.
2. The tool conveying mechanism of the chain-type tool magazine as claimed in claim 1, wherein the driving assembly comprises a hydraulic motor, a sprocket and a chain, the chain extends along the length direction of the slide rail set, the hydraulic motor is fixed on the supporting base, the sprocket is fixedly sleeved on the driving shaft of the hydraulic motor, the hydraulic motor drives the sprocket to rotate, and the sprocket is engaged with the chain to move the rail car along the length direction of the chain.
3. The tool conveying mechanism of the chain type tool magazine as claimed in claim 1, wherein the first straight rail and the second straight rail are provided with a in-position signal block and a slow signal block, and the second straight rail is further provided with a locking signal block;
and one end of the first straight rail, which is close to the bent rail, is provided with a bent rail in-place signal block and a bent rail slow-speed signal block.
4. The knife conveying mechanism of the chain type tool magazine as claimed in claim 1, wherein the supporting seat is in a C-shaped structure, the opening of the supporting seat faces the support and comprises a top plate, a bottom plate and a side plate;
two groups of roller groups are arranged on the opposite surfaces of the top plate and the bottom plate along the direction of a cutter conveying track, and the roller groups on the two opposite surfaces are symmetrically arranged;
the roller group comprises a front roller and a rear roller, the rear roller is arranged on the opening side of the bracket, the front roller is arranged on one side close to the side plate, and the slide rail group is positioned between the front roller and the rear roller;
the two groups of roller groups positioned on the same horizontal plane are symmetrically arranged, and the center distance between the two front rollers is greater than that between the two rear rollers.
5. The knife conveying mechanism of the chain type tool magazine as claimed in claim 4, wherein the front roller and the rear roller each comprise a fixed shaft and an outer sleeve rotatably disposed on the fixed shaft through a bearing set;
the outer sleeve is provided with a guide interface and a support interface, and the support interface on the rear roller is in a uniform divergent state towards the direction far away from the slide rail group along the axis;
and an inclined pushing surface which is attached to the supporting interface is arranged on one side of the sliding rail group, which is in contact with the rear roller.
6. The knife carriage mechanism of the chain magazine of claim 5, wherein the bearing set includes a first bearing and a second bearing disposed in an annular gap of the fixed shaft and the outer sleeve;
an annular boss is arranged in an inner hole of the outer sleeve, an upper step surface and a lower step surface of the annular boss are respectively abutted to outer rings of the first bearing and the second bearing, a first spacer ring is sleeved on the fixed shaft at a position corresponding to the annular boss, and the first spacer ring is abutted to inner rings of the first bearing and the second bearing;
a gap exists between the outer sleeve and the inner surface of the support, a second spacer ring is arranged in the gap, and the second spacer ring is sleeved on the fixed shaft and abuts against the inner ring of the second bearing;
one end of the fixed shaft, which extends out of the sleeve, is in threaded connection with a locking nut, and the locking nut axially clamps the first bearing through a locking ring;
one end of the fixed shaft, which is far away from the outer sleeve, is provided with a T-shaped anti-rotation platform, and the T-shaped anti-rotation platform is embedded into the placing groove of the supporting seat.
7. The tool conveying mechanism of the chain type tool magazine according to claim 1, wherein a bent rail frame is arranged on the support, and a free end of the bent rail frame is fixedly connected with the bent rail;
the detection device is arranged on the bent rail frame and comprises a driving part arranged on the bent rail frame, a swing arm connected with a driving rod of the driving part and a detection assembly arranged at the end part of the swing arm, and the detection assembly is used for detecting the splicing seam of the bent rail and the second straight rail;
the swing arm comprises a first support arm, a second support arm, a horizontal driving assembly and a vertical driving assembly, and the first support arm and the second support arm are arranged vertically;
the vertical driving assembly is arranged at one end, far away from the first supporting arm, of the second supporting arm, is connected with the detection assembly and is used for driving the detection assembly to move along the vertical direction;
the horizontal driving component is arranged on the first supporting arm and used for driving the second supporting arm to move along the direction parallel to the first supporting arm, and the moving path of the horizontal driving component covers the abutted seam of the curved rail and the second straight rail;
wherein, the detecting component includes the mount pad, is U type structure, including first detection division and second detection division, first detection division with the second detection division all is equipped with test rod and SMD pressure sensor, the test rod stretches out the detecting head of mount pad with the laminating of the glide plane of the straight rail of second, the other end with the laminating of SMD pressure sensor.
8. The knife conveying mechanism of the chain-type tool magazine of claim 7, wherein the horizontal driving assembly comprises a second oil cylinder, a guide rail and a slide block, the slide block is slidably disposed on the guide rail, the second oil cylinder is disposed on the vertical plate of the first supporting arm, the guide rail is disposed on the horizontal plate of the first supporting arm, and the slide block is connected with the second supporting arm;
the vertical driving assembly comprises a supporting suspension and a third oil cylinder, the supporting suspension is arranged at the free end of the second supporting arm, the third oil cylinder is arranged on the supporting suspension, and a driving rod of the third oil cylinder is connected with the mounting seat.
9. The knife conveying mechanism of the chain type knife storeroom as claimed in claim 7, wherein a reset cavity and a sensing cavity are arranged in each of the first detection part and the second detection part;
the reset cavity is arranged at one side close to the slide rail group, the patch type pressure sensor is arranged in the induction cavity, and the detection rod penetrates through the reset cavity to be attached to the patch type pressure sensor;
the detection rod is located the cover is equipped with dog and spring on the shaft part in chamber that resets, the dog spiro union is in on the detection rod, and with the lateral wall contact in chamber that resets, its the one end butt of spring is in on the dog, the other end butt is in the chamber that resets with on the baffle in response chamber, be used for the detection rod is right slide rail group detects the time measuring and resets.
10. The tool conveying mechanism of the chain type tool magazine as claimed in claim 7, wherein the detecting head comprises a guide seat and a pressing wheel arranged in the guide seat, the rotation axis of the pressing wheel is parallel to the rotation axis of the roller group, and the rolling arc surface of the pressing wheel protrudes out of the guide seat and is attached to the sliding surface of the sliding rail group;
the outer edge of the guide seat is symmetrically provided with mounting grooves for mounting the pinch roller, the mounting grooves comprise a first sliding groove parallel to the axis of the guide seat and a second sliding groove perpendicular to the first sliding groove, and the first sliding groove extends to one end face, close to the sliding rail group, of the guide seat;
the position of the guide seat, which is positioned in the mounting groove, is provided with a horizontal anti-rotation surface, and a guide plate is arranged at the position of the guide seat, which corresponds to the horizontal anti-rotation surface, and the guide plate is fixed on the mounting seat and is attached to the horizontal anti-rotation surface;
the guide plate is provided with guide grooves, the length direction of each guide groove is parallel to the axis of the detection rod, and the two ends of the pinch roller penetrate through the corresponding guide grooves and are locked through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211091436.7A CN115179082B (en) | 2022-09-07 | 2022-09-07 | Tool conveying mechanism of chain type tool magazine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211091436.7A CN115179082B (en) | 2022-09-07 | 2022-09-07 | Tool conveying mechanism of chain type tool magazine |
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| Publication Number | Publication Date |
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| CN115179082A true CN115179082A (en) | 2022-10-14 |
| CN115179082B CN115179082B (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211091436.7A Active CN115179082B (en) | 2022-09-07 | 2022-09-07 | Tool conveying mechanism of chain type tool magazine |
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| CN216759082U (en) * | 2022-01-30 | 2022-06-17 | 方冠（常州）数控科技有限公司 | Sliding rail tool magazine translation tool changing structure |
| CN217123160U (en) * | 2022-03-25 | 2022-08-05 | 兖矿能源集团股份有限公司 | Rail device for coal mine inspection robot |
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| US6450932B1 (en) * | 1999-06-24 | 2002-09-17 | Howa Machinery, Ltd. | Spare tool changing system for machining center |
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| Publication number | Publication date |
|---|---|
| CN115179082B (en) | 2023-02-03 |
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Address after: 212300 Huguo Road, Erling Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: Okada Intelligent (Jiangsu) Co.,Ltd. Address before: 212300 Huguo Road, Erling Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee before: Okada Intelligent (Jiangsu) Co.,Ltd. Address after: 212300 Huguo Road, Erling Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: Okada Intelligent (Jiangsu) Co.,Ltd. Address before: 212300 Huguo Road, Erling Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee before: OKADA SEIKI DANYANG Co.,Ltd. |