CN111251036A - Automatic centering and locking device of numerical control slotting machine - Google Patents
Automatic centering and locking device of numerical control slotting machine Download PDFInfo
- Publication number
- CN111251036A CN111251036A CN202010175605.XA CN202010175605A CN111251036A CN 111251036 A CN111251036 A CN 111251036A CN 202010175605 A CN202010175605 A CN 202010175605A CN 111251036 A CN111251036 A CN 111251036A
- Authority
- CN
- China
- Prior art keywords
- lock
- commutator
- locking
- elastic clamp
- inner ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 230000002457 bidirectional effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 235000000383 Juglans ailantifolia var cordiformis Nutrition 0.000 description 1
- 244000049364 Juglans ailantifolia var. cordiformis Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010862 gear shaping Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a numerical control slotting machine automatic centering locking device, which comprises a locking base, wherein an elastic clamp is arranged in the locking base, and the elastic clamp tightens and clamps a workpiece after moving downwards; the locking nut is in threaded connection with the locking base and is provided with a first inclined surface for contacting with the upper end surface of the elastic clamp; the lock comprises a lock inner ring and a lock outer ring, wherein the lock inner ring is concentrically arranged on a lock nut, and the lock outer ring is arranged on the outer side of the lock inner ring; the cylinder power device is arranged on the locking base; the reversing device is arranged in the outer ring of the lock, and the reversing device and the inner ring of the lock form a bidirectional ratchet structure. The cylinder power device pushes the lock outer ring to rotate so as to drive the lock inner ring and the lock nut to rotate, the elastic clamp is compressed and released through the lock nut to clamp and release a workpiece, the elastic clamp and the workpiece are concentrically arranged, and the workpiece is ensured to be automatically centered in the clamping process.
Description
Technical Field
The invention relates to the technical field of clamp devices, in particular to an automatic centering and locking device.
Background
At present, the current situation that most of workpieces, especially large workpieces, are clamped on a slotting machine in China is as follows: the slotting machine is mainly clamped and fixed by adopting a three-grab chuck, a special tool, a self-made tool or an assembling fixture, and the like, because the processed workpieces are various, the workpieces are from one station to another station, from one procedure to another procedure, or from one machine tool to another machine tool, and various fixtures need a large amount of time for installation and alignment in the clamping switching process of the workpieces due to the complex clamping mode of the workpieces, thereby increasing the unnecessary downtime of the machine tool and reducing the processing precision; secondly, the clamping alignment has human errors, different equipment clamps are replaced, and the problem of low repeated positioning precision exists; finally, the workpiece is clamped on the traditional slotting machine manually by a worker, so that the labor intensity of the worker is increased, the operation time is long, the clamping force in the clamping process cannot be controlled, and the workpiece can be damaged in the clamping process. The production mode is difficult to realize lean and rapid production, and greatly influences the improvement of the processing efficiency of products. Therefore, it is necessary to design a jig having self-centering and clamping functions.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a locking device for automatic centering of a numerical control slotting machine, which solves the problem that the locking device and a high-precision automatic centering device cannot be fused together, and provides a clamp for a numerical control slotting machine, which can be arbitrarily locked and released and has high-precision automatic centering.
In order to achieve the purpose, the invention adopts the technical scheme that:
a numerical control slotting machine self-centering locking device comprises a locking base, wherein an elastic clamp is arranged in the locking base, and the elastic clamp tightens and clamps a workpiece after moving downwards; the locking nut is in threaded connection with the locking base and is provided with a first inclined surface for contacting with the upper end surface of the elastic clamp; the lock comprises a lock inner ring and a lock outer ring, wherein the lock inner ring is concentrically arranged on the lock nut, a gear is arranged on the outer side wall of the lock inner ring, and the lock outer ring is arranged on the outer side of the lock inner ring; the cylinder power device is arranged on the locking base and used for driving the outer ring of the lockset; the reversing device is installed in the outer ring of the lock, the reversing device and the inner ring of the lock form a bidirectional ratchet structure, and the reversing device is used for driving the inner ring of the lock to rotate clockwise or anticlockwise.
The numerical control slotting machine self-centering locking device comprises:
the plurality of steel wire brackets are uniformly distributed in the outer ring of the lock at intervals, are in a circumferential array and are fixedly connected with the outer ring of the lock;
the linkage steel wire is circular, penetrates through the steel wire supports, can be rotatably connected with the steel wire supports, and is uniformly fixed with three shifting forks along the circumferential direction;
the number of the commutators is three, each commutators is connected with one shifting fork through a commutators shifting lever, one side of each commutators, which is close to the inner ring of the lockset, is provided with a clockwise one-way pawl and an anticlockwise one-way pawl, the clockwise one-way pawl and the anticlockwise one-way pawl are mirror-symmetrical relative to the commutators, and the upper end of one commutators is provided with a commutators wrench;
when the commutator is driven to rotate by the commutator wrench, the commutator drives the shifting forks to rotate through the commutator shifting rods on the commutator, the shifting forks drive the linkage steel wires to rotate, the linkage steel wires drive the other two shifting forks to rotate, the other two shifting forks drive the other two commutators to rotate through the two commutator shifting rods respectively, and the three commutators are linked simultaneously;
when the reverser is driven by the reverser wrench and rotates clockwise, the clockwise one-way pawl is linked with the inner ring of the lockset, the air cylinder power device drives the outer ring of the lockset and the reverser to synchronously rotate clockwise, and the clockwise one-way pawl drives the inner ring of the lockset to rotate clockwise; when the commutator is driven by the commutator wrench and rotates anticlockwise, the anticlockwise one-way pawl is linked with the inner ring of the lock, the cylinder power device drives the outer ring of the lock and the commutator to synchronously rotate anticlockwise, and the anticlockwise one-way pawl drives the inner ring of the lock to rotate anticlockwise.
According to the automatic centering and locking device of the numerical control slotting machine, the elastic clamp is provided with the bottom end and the top end which are opposite, and the radial section of the elastic clamp is in a circular ring shape; along the axial direction of the elastic clamp, the outer diameter of the elastic clamp is gradually reduced from the top end to the bottom end.
The utility model provides an foretell automatic centering locking device of numerical control slotting machine, wherein, be equipped with the installation in the locking base the spacing groove of elastic fixture, the shape of spacing groove with the shape phase-match of elastic fixture's surface, elastic fixture swing joint in the spacing inslot, elastic fixture with the concentric installation of locking base, iron fillings through the mouth is seted up to the bottom of locking base, the spacing groove is located directly over the iron fillings through the mouth, the iron fillings through the mouth with the spacing groove is linked together.
The utility model provides an foretell automatic centering locking device of numerical control slotting machine, wherein, the up end of spacing groove outwards extends and forms annular bulge, the external screw thread has been seted up to the bellied outer wall of annular, lock nut formula structure as an organic whole, lock nut includes nut upper portion and nut lower part, nut upper portion sets up the upside of nut lower part, the nut lower part is seted up there is the internal thread, the bellied external screw thread of annular with the internal thread of nut lower part cooperatees, the shape of the inside wall of tool to lock inner circle with the shape of the lateral wall on nut upper portion is the same, the tool to lock inner circle is installed with one heart nut upper portion.
The numerical control slotting machine automatic centering locking device is characterized in that a first inclined surface is arranged on the bottom surface of the upper portion of the nut, the upper end of the elastic clamp protrudes out of the annular protrusion, a second inclined surface is arranged at the upper end of the elastic clamp, the first inclined surface is located right above the second inclined surface, and the first inclined surface is attached to the second inclined surface.
The automatic centering and locking device for the numerical control slotting machine is characterized in that an annular cover plate is fixed at the upper end of the locking nut and is located right above the elastic clamp.
The automatic centering and locking device of the numerical control slotting machine is characterized in that the shifting fork comprises a fixed block and two vertical columns, the fixed block is fixedly connected with the linkage steel wire, the two vertical columns are arranged on the upper surface of the fixed block, and one end of the commutator, far away from the commutator, is inserted between the two vertical columns.
The numerical control slotting machine automatic centering locking device is characterized in that an insertion groove is formed in the upper surface of the outer ring of the lockset, the insertion groove is communicated with the inside of the outer ring of the lockset, and the commutator is in interference fit with the insertion groove.
The numerical control slotting machine automatic centering locking device is characterized in that a fan-shaped cover plate is buckled at the upper port of the splicing groove, and one side of the fan-shaped cover plate is abutted to the commutator.
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
(1) the automatic centering locking device of the numerical control slotting machine provided by the invention has the advantages that the cylinder power device pushes the lock outer ring to rotate so as to drive the lock inner ring to rotate, the lock inner ring can drive the lock nut to rotate, the elastic clamp is compressed and released through the lock nut to clamp and release a workpiece, the elastic clamp and the workpiece are concentrically arranged, and the automatic centering of the workpiece in the clamping process can be ensured.
(2) The automatic centering locking device of the numerical control slotting machine is controlled by the reversing device to switch between clamping and loosening, the reversing rotation can be achieved by shifting the reverser wrench, the locking and loosening states are changed, and the locking and loosening states are switched simply and conveniently.
(3) The automatic centering and locking device of the numerical control slotting machine can provide reliable locking force and high-precision centering capability, is stable and reliable, and can eliminate errors caused by human factors in the clamping process.
(4) The reversing device of the automatic centering locking device of the numerical control slotting machine can ensure that a locking nut cannot be reversed to loosen a workpiece due to the shutdown of an air cylinder and external force factors when the workpiece is in a locking state, so that the reversing device has high safety and high repeated positioning precision, can be widely applied to different processing applications, and has high compatibility and long service life.
(5) The automatic centering locking device of the numerical control slotting machine integrates the centering and positioning mechanism and the clamping mechanism into a set of mechanical locking device, and uses the air cylinder as a power element, so that the device has the advantages of light and simple structure, reasonable design, reduced investment cost and use cost of equipment and certain economical efficiency.
Drawings
FIG. 1 is an exploded view of the numerically controlled slotting machine self-centering locking device of the present invention;
FIG. 2 is an isometric view of the numerically controlled slotting machine self-centering locking device of the present invention;
FIG. 3 is a half sectional view of the automatic centering and locking device of the numerical control slotting machine of the invention;
FIG. 4 is a top view of the numerically controlled slotting machine self-centering locking device of the present invention;
FIG. 5 is a front view of the automatic centering and locking device of the numerically controlled slotting machine of the present invention;
FIG. 6 is a sectional view taken along line A-A of FIG. 4;
FIG. 7 is a sectional view taken along line B-B of FIG. 5;
FIG. 8 is a structural schematic diagram of the locked state of the present invention;
FIG. 9 is a schematic view of the relaxed state configuration of the present invention;
FIG. 10 is a schematic view of the construction of the reversing device of the present invention;
FIG. 11 is a schematic view of the lock nut of the present invention;
FIG. 12 is a schematic view of a resilient clip of the present invention;
figure 13 is a schematic view of the inner race of the lock of the present invention.
Reference numerals: 1. locking the base; 11. a limiting groove; 12. the scrap iron passes through the opening; 13. an annular projection; 14. an annular groove; 15. an annular step; 2. an elastic clamp; 21. a bottom end; 22. a top end; 23. a second inclined surface; 24. an annular cover plate; 3. locking the nut; 31. the upper part of the nut; 311. a first inclined surface; 32. the lower part of the nut; 4. an inner ring of the lockset; 41. a gear; 5. an outer ring of the lockset; 51. inserting grooves; 52. a fan-shaped cover plate; 6. a cylinder power device; 7. a reversing device; 71. a steel wire bracket; 72. linkage steel wires; 73. a shifting fork; 731. a fixed block; 732. a column; 74. a commutator; 741. a clockwise one-way pawl; 742. a counterclockwise one-way pawl; 75. a commutator deflector rod; 76. a commutator wrench.
Detailed Description
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The first embodiment:
as shown in fig. 1, 2, 3 and 6, a first preferred numerically controlled slotting machine self-centering locking device is shown, comprising: locking base 1 is equipped with elastic fixture 2 in the locking base 1, tightens up and grasps the work piece after elastic fixture 2 downstream, and there is certain space in the vertical direction in elastic fixture 2 and locking base 1, can supply elastic fixture 2 up-and-down motion, and when elastic fixture 2 atress downstream, locking base 1 compression elastic fixture 2 can grasp the work piece after elastic fixture 2 contracts, and elastic fixture 2 relies on the elasticity upward movement of self to realize reseing after putting down the work piece.
In addition, as a preferred embodiment, as shown in fig. 3, 6 and 11, the numerical control slotting machine automatic centering locking device further comprises: the locking nut 3, locking nut 3 threaded connection is on locking base 1, and locking nut 3 is equipped with the inclined plane 311 of using with the upper end face contact of elastic fixture 2, and locking nut 3 rotates on locking base 1, can adjust the height from top to bottom, and when locking nut 3 moves down, inclined plane 311 of locking nut 3 pushes down elastic fixture 2 and moves down in step.
Further, as a preferred embodiment, as shown in fig. 4, 10 and 13, the numerical control slotting machine automatic centering locking device further comprises: tool to lock inner circle 4 and tool to lock outer circle 5, tool to lock inner circle 4 is installed on lock nut 3 with one heart, tool to lock inner circle 4 and 3 interlocks of lock nut, the rotation of tool to lock inner circle 4 can drive lock nut 3 and rotate, 4 lateral walls of tool to lock inner circle are gone up and are evenly equipped with a plurality of gears 41 along vertical, tool to lock outer circle 5 sets up the outside at tool to lock inner circle 4, certain interval has between tool to lock outer circle 5 and the tool to lock inner circle 4, tool to lock outer circle 5, tool to lock inner circle 4, lock nut 3, the axis homogeneous phase coincidence of elastic fixture 2 and locking.
Still further, as a preferred embodiment, the numerical control slotting machine self-centering locking device further comprises: and the cylinder power device 6 is arranged on the locking base 1 and used for driving the lock outer ring 5 to rotate.
Furthermore, as a preferred embodiment, the numerical control slotting machine self-centering locking device further comprises: the reversing device 7 is installed in the lock outer ring 5, the reversing device 7 and the lock inner ring 4 form a bidirectional ratchet structure, the reversing device 7 is used for driving the lock inner ring 4 to rotate, the cylinder power device 6 drives the lock outer ring 5 to rotate, the lock outer ring 5 drives the reversing device 7 to rotate, and the reversing device 7 is used for driving the lock inner ring 4 to rotate clockwise or anticlockwise.
Also, as a preferred embodiment, as shown in fig. 1, 3, 8, 9 and 10, the reversing device 7 includes: a plurality of steel wire supports 71 are uniformly distributed in the lock outer ring 5 at intervals, the plurality of steel wire supports 71 are in a circumferential array, and the plurality of steel wire supports 71 are fixedly connected with the lock outer ring 5; the linkage steel wire 72 is circular, the linkage steel wire 72 penetrates through the plurality of steel wire supports 71, the linkage steel wire 72 and the plurality of steel wire supports 71 can be rotatably connected, the linkage steel wire 72 can rotate in the plurality of steel wire supports 71, and the three shifting forks 73 are uniformly fixed on the linkage steel wire 72 along the circumferential direction; the number of the commutators 74 is three, the commutators 74 are arranged in a regular triangle, the three commutators 74 are respectively arranged on one side of three shift forks 73, each commutator 74 is opposite to one shift fork 73, each commutator 74 is connected with one shift fork 73 through a commutator shift lever 75, one end of the commutator shift lever 75 is fixedly connected with the commutators 74, the other end of the commutator shift lever 75 is slidably connected with the shift fork 73, one side of the commutators 74 close to the inner ring 4 of the lockset is provided with a clockwise one-way pawl 741 and a counterclockwise one-way pawl 742, the clockwise one-way pawl 741 and the counterclockwise one-way pawl 742 are mirror-symmetrical relative to the commutators 74, the upper end of one commutator 74 is provided with a commutator wrench 76, and the commutator wrench 76 controls the rotating direction of the commutators 74; when the commutator 74 is driven to rotate by the commutator wrench 76, the commutator 74 drives the shifting forks 73 to rotate through the commutator shift levers 75 on the commutator 74, the shifting forks 73 drive the linkage steel wires 72 to rotate, the linkage steel wires 72 drive the other two shifting forks 73 to rotate, and the other two shifting forks 73 respectively drive the other two commutators 74 to rotate through the two commutator shift levers 75, so that the effect of simultaneous linkage of the three commutators 74 is realized; when the reverser 74 is driven by the reverser wrench 76 and rotates clockwise, the clockwise one-way pawl 741 is linked with the lockset inner ring 4, the cylinder power device 6 drives the lockset outer ring 5 and the reverser 74 to synchronously rotate clockwise, and the clockwise one-way pawl 741 drives the lockset inner ring 4 to rotate clockwise; when the reverser 74 is driven by the reverser wrench 76 and rotates counterclockwise, the counterclockwise one-way pawl 742 is linked with the inner lock ring 4, the cylinder power device 6 drives the outer lock ring 5 and the reverser 74 to synchronously rotate counterclockwise, and the counterclockwise one-way pawl 742 drives the inner lock ring 4 to rotate counterclockwise. The reversing device 7 can ensure that the locking nut 3 can not be reversed to loosen the workpiece due to the shutdown of the cylinder power device 6 and external force factors when the workpiece is in a locking state, and the safety is high.
In addition, as a preferred embodiment, as shown in fig. 12, the elastic clamp 2 has a bottom end 21 and a top end 22 opposite to each other, and the radial section of the elastic clamp 2 is circular ring-shaped; along the axial direction of the elastic clamp 2, the outer diameter of the elastic clamp 2 is gradually reduced from the top end 22 to the bottom end 21; the inner diameter of the elastic clamp 2 is the same at different heights.
Further, as a preferred embodiment, as shown in fig. 5, fig. 6 and fig. 7, a limiting groove 11 for installing the elastic fixture 2 is arranged in the locking base 1, the shape of the limiting groove 11 is matched with the shape of the outer surface of the elastic fixture 2, the elastic fixture 2 is movably connected in the limiting groove 11, the inner diameter of the elastic fixture 2 gradually shrinks when the elastic fixture 2 moves downwards, the elastic fixture 2 and the locking base 1 are concentrically installed, an iron chip passing opening 12 is formed in the bottom of the locking base 1, the limiting groove 11 is located right above the iron chip passing opening 12, and the iron chip passing opening 12 is communicated with the limiting groove 11.
Still further, as a preferred embodiment, as shown in fig. 1, fig. 6 and fig. 13, an upper port of the limiting groove 11 extends outward to form an annular protrusion 13, an outer wall of the annular protrusion 13 is provided with an external thread, the lock nut 3 is of an integrated structure, the lock nut 3 includes a nut upper portion 31 and a nut lower portion 32, the nut upper portion 31 is disposed on an upper side of the nut lower portion 32, an internal thread is formed inside the nut lower portion 32, the external thread of the annular protrusion 13 is matched with the internal thread of the nut lower portion 32, the nut lower portion 32 is rotated to adjust an upper height and a lower height of the lock nut 3, a shape of an inner side wall of the lock inner ring 4 is the same as a shape of an outer side wall of the nut upper portion 31, the lock inner ring 4 is concentrically installed on.
Further, as a preferred embodiment, the bottom surface of the upper nut portion 31 is provided with a first inclined surface 311, the upper end of the elastic clamp 2 protrudes from the annular protrusion 13, the upper end of the elastic clamp 2 is provided with a second inclined surface 23, the first inclined surface 311 is located right above the second inclined surface 23, the first inclined surface 311 is attached to the second inclined surface 23, and the first inclined surface 311 is used for pressing the second inclined surface 23 to move downwards.
Furthermore, as a preferred embodiment, as shown in fig. 3, an annular cover plate 24 is fixed on the upper end of the lock nut 3, the annular cover plate 24 is located right above the elastic fixture 2, the upper port of the insertion groove 51 is fastened with the fan-shaped cover plate 52, and one side of the fan-shaped cover plate 52 is abutted against the commutator 74, so as to prevent iron chips generated in the gear shaping process from flying out, thereby achieving the functions of dust prevention and chip prevention.
Further, as shown in fig. 10, as a preferred embodiment, the shift fork 73 includes a fixed block 731 and two vertical posts 732, the fixed block 731 is fixedly connected to the link wire 72, the two vertical posts 732 are disposed on the upper surface of the fixed block 731, and one end of the diverter lever 75 away from the diverter 74 is inserted between the two vertical posts 732 and can swing left and right between the two vertical posts 732.
In addition, as a preferred embodiment, as shown in fig. 1 and fig. 3, an insertion groove 51 is formed in an upper surface of the lock outer ring 5, the insertion groove 51 is communicated with an inside of the lock outer ring 5, the commutator 74 is in interference fit with the insertion groove 51, an upper end of the commutator 74 protrudes out of the insertion groove 51 to be connected with a commutator wrench 76, and the commutator wrench 76 can drive the commutator 74 to rotate in the insertion groove 51.
Second embodiment:
with continuing reference to fig. 1, 1 and 6, a second preferred numerically controlled slotting machine self-centering locking device is shown, comprising: the locking device comprises a locking base 1, wherein the radial section of the locking base 1 is in a circular ring shape, an annular step 15 is arranged in the locking base 1 along the horizontal direction, the inner diameter of the locking base 1 is gradually increased from the annular step 15 to the upper end port of the locking base, the inner diameters of the locking base 1 below the annular step 15 are the same, an elastic clamp 2 is arranged in the locking base 1, the elastic clamp 2 is positioned on the upper side of the annular step 15, the elastic clamp 2 is provided with a bottom end 21 and a top end 22 which are opposite, and the radial section of the elastic clamp 2 is in; along the axial direction of elastic fixture 2, the external diameter of elastic fixture 2 is reduced to bottom 21 by top 22 gradually, and the outer wall of elastic fixture 2 is laminated with the inner wall of locking base 1 mutually, has certain space between bottom 21 of elastic fixture 2 and annular step 15, and when elastic fixture 2 moves down, receives the compression of locking base 1 inner wall and tightens up the deformation and grasps the work piece, and annular groove 14 is seted up to the excircle of the up end of locking base 1.
Further, as a preferred embodiment, as shown in fig. 6 and 11, the numerical control slotting machine self-centering locking device further comprises: locking nut 3, locking nut 3's threaded connection is on locking base 1, 3 formula structures as an organic whole of locking nut, locking nut 3 includes nut upper portion 31 and nut lower part 32, nut lower part 32 is tube structure, inside is seted up there is the internal thread, the upper end threaded connection of internal thread and locking base 1, the upper end of nut lower part 32 extends to locking base 1's axis direction and forms nut upper portion 31, 4 concentric mountings are on nut upper portion 31 in the tool to lock, the bottom surface of nut upper portion 31 compresses tightly the upper end of elastic fixture 2, when locking nut 3 clockwise turning, elastic fixture 2 downstream can be pushed down to nut upper portion 31.
Furthermore, as a preferred embodiment, the numerical control slotting machine self-centering locking device further comprises: the lock comprises a lock inner ring 4 and a lock outer ring 5, wherein the lock inner ring 4 and the lock outer ring 5 are both of annular structures, the inside of the lock outer ring 5 is hollow, the lock inner ring 4 is concentrically installed on a locking nut 3, a gear 41 is arranged on the outer side wall of the lock inner ring 4, the lock outer ring 5 is sleeved on the outside of the lock inner ring 4, and the lock inner ring 4 and the lock outer ring 5 are both arranged along the horizontal direction.
Furthermore, as a preferred embodiment, the numerical control slotting machine self-centering locking device further comprises: the cylinder power device 6, the cylinder power device 6 is installed in the ring channel 14 on the locking base 1, and the output end of the cylinder power device 6 is linked with the lock outer ring 5 and is used for driving the lock outer ring 5 to rotate.
Also, as a preferred embodiment, the numerical control slotting machine self-centering locking device further comprises: the reversing device 7 is installed in the lock outer ring 5, the reversing device 7 and the lock inner ring 4 form a bidirectional ratchet structure, the reversing device 7 is used for driving the lock inner ring 4 to rotate clockwise or anticlockwise, the reversing device 7 comprises a reverser 74 and a reverser wrench 76, the reverser 74 is rotatably connected with the lock outer ring 5, one side of the reverser 74 close to the lock inner ring 4 is provided with a clockwise one-way pawl 741 and an anticlockwise one-way pawl 742, the clockwise one-way pawl 741 and the anticlockwise one-way pawl 742 are mirror-symmetrical relative to the reverser 74, the upper end of the reverser 74 is provided with the reverser wrench 76, the side of the clockwise one-way pawl 741 close to the anticlockwise one-way pawl 742 is an arc surface, the side of the anticlockwise one-way pawl 742 close to the clockwise one-way pawl 741 is an arc surface, and both the clockwise one-way pawl 741 and the anticlockwise one-way pawl 742 can form, when the clockwise one-way pawl 741 is linked with the inner lock ring 4, the clockwise one-way pawl 741 can drive the inner lock ring 4 to rotate clockwise, the clockwise one-way pawl 741 can slide away from the inner lock ring 4 when rotating counterclockwise, and the inner lock ring 4 does not work at this time; when the counterclockwise one-way pawl 742 is linked with the lock inner ring 4, the counterclockwise one-way pawl 742 can drive the lock inner ring 4 to rotate counterclockwise, the counterclockwise one-way pawl 742 can slide away from the lock inner ring 4 when rotating clockwise, and the lock inner ring 4 does not work at this time; when the commutator wrench 76 rotates clockwise to drive the commutator 74 to rotate, the clockwise one-way pawl 741 is linked with the inner lock ring 4, and when the commutator wrench 76 rotates counterclockwise to drive the commutator 74 to rotate, the counterclockwise one-way pawl 742 is linked with the inner lock ring 4, so that the commutator wrench 76 can realize reversing rotation and change the locking or loosening state.
The workflow of the present invention is illustrated below:
(1) during locking operation, firstly, a workpiece is conveyed to a clamping position through a conveying system or is manually placed at the clamping position, the commutator wrench 76 is clockwise shifted to a locking gear, the commutator wrench 76 is shifted to drive the commutator 74 connected with the commutator wrench to clockwise rotate, the commutator 74 rotates to drive the commutator shift lever 75 to rotate, the commutator shift lever 75 rotates to drive the shifting fork 73 to rotate, the shifting fork 73 rotates to drive the linkage steel wire 72 to rotate, the linkage steel wire 72 rotates to drive the other two shifting forks 73 to rotate, the other two shifting forks 73 drive the other two commutators 74 to rotate through the two commutator shift levers 75, so that the three commutators 74 are simultaneously linked, and the clockwise one-way pawl 741 is linked with the lockset inner ring 4; then the cylinder power device 6 moves to push the lock outer ring 5 and the commutator 74 to rotate clockwise, the three commutators 74 are connected with the lock inner ring 4 in a clockwise ratchet structure, the commutator 74 can push the lock inner ring 4 to rotate clockwise, the lock inner ring 4 rotates clockwise to drive the locking nut 3 to rotate clockwise, then the locking nut 3 moves downwards, the locking nut 3 extrudes and contracts the elastic clamp 2, and the workpiece is close to and fixed at the center of the elastic clamp 2, so that the centering and locking effects are achieved.
(2) Disassembling, namely after the processing of the workpiece is finished, the commutator wrench 76 is shifted to a disassembling gear counterclockwise, the commutator wrench 76 is shifted to drive the commutator 74 connected with the commutator wrench to rotate counterclockwise, the three commutators 74 keep consistent in motion state, and the counterclockwise one-way pawl 742 is linked with the lockset inner ring 4; then the cylinder power device 6 contracts and pulls the lock outer ring 5 to rotate anticlockwise, the three commutators 74 are connected with the lock inner ring 4 in an anticlockwise ratchet structure, the lock outer ring 5 rotates anticlockwise to drive the three commutators 74 inside to rotate anticlockwise, the anticlockwise rotation of the commutators 74 can drive the lock inner ring 4 to rotate anticlockwise, the lock inner ring 4 rotates anticlockwise to drive the locking nut 3 to rotate anticlockwise, the locking nut 3 rotates anticlockwise to move upwards, the elastic clamp 2 is loosened, and the workpiece can be detached at the moment.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a numerical control slotting machine self-centering locking device which characterized in that, it includes:
the device comprises a locking base (1), wherein an elastic clamp (2) is arranged in the locking base (1), and the elastic clamp (2) moves downwards and then tightens and clamps a workpiece;
the locking nut (3) is in threaded connection with the locking base (1), and the locking nut (3) is provided with a first inclined surface (311) which is in surface contact with the upper end part of the elastic clamp (2);
the lock comprises a lock inner ring (4) and a lock outer ring (5), wherein the lock inner ring (4) is concentrically arranged on the lock nut (3), a gear (41) is arranged on the outer side wall of the lock inner ring (4), and the lock outer ring (5) is arranged on the outer side of the lock inner ring (4);
the cylinder power device (6) is arranged on the locking base (1) and used for driving the lock outer ring (5);
the reversing device (7), install in the tool to lock outer lane (5) reversing device (7), reversing device (7) with tool to lock inner circle (4) form two-way ratchet structure, reversing device (7) are used for driving tool to lock inner circle (4) clockwise or anticlockwise rotation.
2. The numerical control slotting machine self-centering locking device according to claim 1, wherein the reversing device (7) comprises:
the lock comprises a plurality of steel wire supports (71), wherein the plurality of steel wire supports (71) are uniformly distributed in the lock outer ring (5) at intervals, the plurality of steel wire supports (71) are in a circumferential array, and the plurality of steel wire supports (71) are fixedly connected with the lock outer ring (5);
the linkage steel wire (72) is circular, the linkage steel wire (72) penetrates through the steel wire supports (71), the linkage steel wire (72) and the steel wire supports (71) can be rotatably connected, and three shifting forks (73) are uniformly fixed on the linkage steel wire (72) along the circumferential direction;
the number of the commutators (74) is three, each commutator (74) is connected with one shifting fork (73) through a commutator shifting lever (75), one side of the commutators (74) close to the lockset inner ring (4) is provided with a clockwise one-way pawl (741) and a counterclockwise one-way pawl (742), the clockwise one-way pawl (741) and the counterclockwise one-way pawl (742) are mirror-symmetrical relative to the commutators (74), and a commutator wrench (76) is arranged at the upper end of one commutator (74);
when the commutator (74) is driven to rotate by the commutator wrench (76), the commutator (74) drives the shifting forks (73) to rotate through the commutator shift rods (75) on the commutator (74), the shifting forks (73) drive the linkage steel wires (72) to rotate, the linkage steel wires (72) drive the other two shifting forks (73) to rotate, the other two shifting forks (73) drive the other two commutators (74) to rotate through the two commutator shift rods (75), and the three commutators (74) are linked simultaneously;
when the reverser (74) is driven by the reverser wrench (76) and rotates clockwise, the clockwise one-way pawl (741) is linked with the lockset inner ring (4), the cylinder power device (6) drives the lockset outer ring (5) and the reverser (74) to synchronously rotate clockwise, and the clockwise one-way pawl (741) drives the lockset inner ring (4) to rotate clockwise; when the reverser (74) is driven by the reverser wrench (76) and rotates anticlockwise, the anticlockwise one-way pawl (742) is linked with the lockset inner ring (4), the cylinder power device (6) drives the lockset outer ring (5) and the reverser (74) to synchronously rotate anticlockwise, and the anticlockwise one-way pawl (742) drives the lockset inner ring (4) to rotate anticlockwise.
3. The numerical control slotting machine automatic centering locking device according to claim 1, characterized in that the elastic clamp (2) is provided with a bottom end (21) and a top end (22) which are opposite, and the radial section of the elastic clamp (2) is in a circular ring shape; along the axial direction of the elastic clamp (2), the outer diameter of the elastic clamp (2) is gradually reduced from the top end (22) to the bottom end (21).
4. The automatic centering and locking device of the numerical control slotting machine according to claim 3, wherein a limiting groove (11) for installing the elastic clamp (2) is arranged in the locking base (1), the shape of the limiting groove (11) is matched with the shape of the outer surface of the elastic clamp (2), the elastic clamp (2) is movably connected in the limiting groove (11), the elastic clamp (2) and the locking base (1) are installed concentrically, an iron scrap passing opening (12) is formed in the bottom of the locking base (1), the limiting groove (11) is located right above the iron scrap passing opening (12), and the iron scrap passing opening (12) is communicated with the limiting groove (11).
5. The numerical control slotting machine automatic centering locking device according to claim 4, wherein an upper port of the limiting groove (11) extends outwards to form an annular protrusion (13), an external thread is formed on the outer wall of the annular protrusion (13), the locking nut (3) is of an integrated structure, the locking nut (3) comprises an upper nut portion (31) and a lower nut portion (32), the upper nut portion (31) is arranged on the upper side of the lower nut portion (32), an internal thread is formed on the lower nut portion (32), the external thread of the annular protrusion (13) is matched with the internal thread of the lower nut portion (32), the shape of the inner side wall of the lock inner ring (4) is the same as that of the outer side wall of the upper nut portion (31), and the lock inner ring (4) is concentrically arranged on the upper nut portion (31).
6. The numerical control slotting machine self-centering locking device according to claim 5, wherein a first inclined surface (311) is arranged on the bottom surface of the upper nut portion (31), the upper end of the elastic clamp (2) protrudes out of the annular protrusion (13), a second inclined surface (23) is arranged at the upper end of the elastic clamp (2), the first inclined surface (311) is located right above the second inclined surface (23), and the first inclined surface (311) is attached to the second inclined surface (23).
7. The numerical control slotting machine automatic centering locking device according to claim 1, characterized in that an annular cover plate (24) is fixed at the upper end of the locking nut (3), and the annular cover plate (24) is positioned right above the elastic clamp (2).
8. The numerical control slotting machine automatic centering locking device according to claim 2, wherein the shifting fork (73) comprises a fixed block (731) and two upright posts (732), the fixed block (731) is fixedly connected with the linkage steel wire (72), the two upright posts (732) are arranged on the upper surface of the fixed block (731), and one end of the reverser deflector rod (75) far away from the reverser (74) is inserted between the two upright posts (732).
9. The numerical control slotting machine automatic centering locking device according to claim 2, wherein an insertion groove (51) is formed in the upper surface of the lock outer ring (5), the insertion groove (51) is communicated with the inside of the lock outer ring (5), and the commutator (74) is in interference fit with the insertion groove (51).
10. The numerical control slotting machine automatic centering locking device according to claim 9, wherein a fan-shaped cover plate (52) is buckled at an upper port of the slotting machine (51), and one side of the fan-shaped cover plate (52) is abutted against the commutator (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175605.XA CN111251036B (en) | 2020-03-13 | 2020-03-13 | Automatic centering and locking device of numerical control slotting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010175605.XA CN111251036B (en) | 2020-03-13 | 2020-03-13 | Automatic centering and locking device of numerical control slotting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111251036A true CN111251036A (en) | 2020-06-09 |
| CN111251036B CN111251036B (en) | 2021-06-15 |
Family
ID=70942418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010175605.XA Expired - Fee Related CN111251036B (en) | 2020-03-13 | 2020-03-13 | Automatic centering and locking device of numerical control slotting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111251036B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643373A (en) * | 2022-04-21 | 2022-06-21 | 山西三元炭素有限责任公司 | Clamping device for large-diameter cylindrical workpiece |
| CN115446622A (en) * | 2022-09-22 | 2022-12-09 | 东莞市普华精密机械有限公司 | CNC frock |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044029C (en) * | 1994-08-18 | 1999-07-07 | 范朝来 | The quick span-adjustable screw mechanism of flexible engagement automatically |
| CN1230910A (en) * | 1996-09-25 | 1999-10-06 | 动力工具霍德尔斯公司 | Spring chuck |
| JP2007307633A (en) * | 2006-05-16 | 2007-11-29 | Honda Motor Co Ltd | Clamping device |
| CN104607682A (en) * | 2014-12-17 | 2015-05-13 | 重庆第二机床厂有限责任公司 | Positioning method for high-precision machining of thin-walled workpiece |
| CN108890357A (en) * | 2018-07-20 | 2018-11-27 | 黄河科技学院 | Inclined wedge traveller centering and clamping mechanism for automatic assembly line |
-
2020
- 2020-03-13 CN CN202010175605.XA patent/CN111251036B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044029C (en) * | 1994-08-18 | 1999-07-07 | 范朝来 | The quick span-adjustable screw mechanism of flexible engagement automatically |
| CN1230910A (en) * | 1996-09-25 | 1999-10-06 | 动力工具霍德尔斯公司 | Spring chuck |
| JP2007307633A (en) * | 2006-05-16 | 2007-11-29 | Honda Motor Co Ltd | Clamping device |
| CN104607682A (en) * | 2014-12-17 | 2015-05-13 | 重庆第二机床厂有限责任公司 | Positioning method for high-precision machining of thin-walled workpiece |
| CN108890357A (en) * | 2018-07-20 | 2018-11-27 | 黄河科技学院 | Inclined wedge traveller centering and clamping mechanism for automatic assembly line |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643373A (en) * | 2022-04-21 | 2022-06-21 | 山西三元炭素有限责任公司 | Clamping device for large-diameter cylindrical workpiece |
| CN114643373B (en) * | 2022-04-21 | 2024-04-09 | 山西三元炭素有限责任公司 | Clamping device for large-diameter cylindrical workpiece |
| CN115446622A (en) * | 2022-09-22 | 2022-12-09 | 东莞市普华精密机械有限公司 | CNC frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111251036B (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111251036B (en) | Automatic centering and locking device of numerical control slotting machine | |
| CN216680852U (en) | Mechanical processing is with automatic feeding mechanical arm of going up | |
| CN108526620B (en) | Tapping method for three-way joint | |
| CN108723513B (en) | Three way connection tapping equipment | |
| CN108436449B (en) | Automatic assembling device for door and window handles | |
| JPH07108498B2 (en) | Tool head interchangeable machine tool | |
| CN206356783U (en) | A kind of comprehensive steel cylinder welder | |
| CN218253623U (en) | Automatic welding tool for non-standard workpiece | |
| CN113523336B (en) | Intelligent manufacturing numerical control machine tool | |
| CN110883741A (en) | Workstation is used in production of LED lamp | |
| CN208083905U (en) | A kind of milling machine organisation of working being conveniently operated | |
| CN213615183U (en) | Device for automatically screwing nut | |
| CN209970225U (en) | Auxiliary tool for machining cylinder valve body | |
| CN113681289A (en) | Assembling device for hand-tightened drill chuck | |
| CN209190005U (en) | A kind of spot welding manipulator of gas burner | |
| CN220241285U (en) | Eight-channel rotary screw locking clamp | |
| CN217966687U (en) | Cylindrical workpiece clamping device for mechanical maintenance | |
| CN216990871U (en) | Self-centering clamping device for workpiece | |
| CN211248649U (en) | Tapping machine for mechanical numerical control machining | |
| CN221047340U (en) | Chuck jaw of vertical lathe | |
| CN217045450U (en) | Automatic mounting device for chicken heart chuck for numerical control machine tool | |
| CN217776060U (en) | Fixing clamp for welding | |
| CN220882009U (en) | Battery module clamping mechanism | |
| CN218169601U (en) | Reverse synchronous opening and closing clamping mechanism | |
| CN220837945U (en) | Auxiliary tool for upper and lower lathe of nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 |