CN112720008A - Positioning and clamping device - Google Patents
Positioning and clamping device Download PDFInfo
- Publication number
- CN112720008A CN112720008A CN202011560531.8A CN202011560531A CN112720008A CN 112720008 A CN112720008 A CN 112720008A CN 202011560531 A CN202011560531 A CN 202011560531A CN 112720008 A CN112720008 A CN 112720008A
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- sleeve
- locking
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction 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
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a positioning and clamping device, which adopts the technical scheme that: the method comprises the following steps: the tool holder is connected with a clamping assembly, the clamping assembly comprises a tool holder nut which is assembled and fixed on the tool holder, a tool shank is fixed on the tool holder, a tool sleeve is arranged outside the tool shank, the tool sleeve is fixedly connected with the tool shank through a locking piece, a ball steel ball is arranged between the tool sleeve and the tool shank, a left reverser clamping ring, a left reverser, a right reverser clamping ring and a right reverser are further arranged between the tool sleeve and the tool shank, a ball returning hole and a tool shank channel are formed in the tool shank, a tool sleeve channel is arranged in the tool sleeve, and a tool sleeve locking end face is arranged at the end part of the tool sleeve; the invention has reliable structure and convenient use.
Description
Technical Field
The invention relates to a positioning and clamping device in the field of machining and manufacturing, in particular to a positioning and clamping device.
Background
In the modern precision numerical control machining process, in order to ensure the machining precision and high smoothness of parts, the precision requirement of a machining tool is very high, and the precision requirement of a cutter arranged on a machine tool main shaft and a cutter handle clamping device for clamping the cutter is also very high.
The existing knife handle clamping device usually adopts a taper handle structure and is matched with a pull rod mechanism for locking. The structure has high requirements on the processing precision of the taper shank and the taper hole, the matched conical surface is also required to have no dirt during assembly, enough contact area is required to be reached, and the difficulty of the actual operation process is very high.
In addition, the taper shank structure needs a pull rod mechanism for locking, which results in that the structure of the main shaft of the machine tool becomes complex, the dynamic balance of the main shaft is seriously influenced, and the manufacture of the machine tool becomes complex and difficult.
Therefore, it is very important to reduce the complexity of the tool holder clamping device and the machine tool mounting structure and to improve the clamping accuracy of the tool holder.
Disclosure of Invention
In view of the problems mentioned in the background, it is an object of the present invention to provide a positioning and clamping device to solve the problems mentioned in the background.
The technical purpose of the invention is realized by the following technical scheme:
a positioning and clamping device, comprising: the cutter holder, be connected with the centre gripping subassembly on the cutter holder, the centre gripping subassembly is including the cutter holder nut of assembly fixation on the cutter holder, be fixed with the handle of a knife on the cutter holder, the outside of handle of a knife is provided with the tool holder, the tool holder pass through the retaining member with the handle of a knife is connected fixedly, the tool holder with be provided with the ball steel ball between the handle of a knife, the tool holder with still be provided with left reverser snap ring, left reverser, right reverser snap ring and right reverser between the handle of a knife, set up back pearl hole and handle of a knife channel in the handle of a knife, be provided with the tool holder channel in the tool holder, the tool holder tip has tool holder locking end face, the handle of a knife tip has handle of a knife locking terminal surface and handle of a knife guide conical surface, works as tool holder locking terminal face with during handle of a.
Preferably, a steel ball retainer is arranged outside the ball steel ball.
Preferably, the locking piece comprises a locking spring cap, a locking spring, a locking steel ball and a locking V-shaped groove, the locking spring cap is fixed in the cutter handle, the locking steel ball is connected in the locking spring cap through the locking spring, and the locking V-shaped groove is formed in the cutter handle and used for the locking steel ball to be clamped in.
Preferably, a dustproof ring is arranged between the knife handle and the knife sleeve.
Preferably, the end of the tool holder is provided with a conical insertion slot, the tool holder is provided with a conical insertion part integrally formed with the tool holder, the conical insertion part is inserted into the insertion slot, and the tool holder nut is in threaded connection with the outside of the tool holder.
Preferably, key grooves are formed in the tool holder and the tool holder nut, and flat keys are arranged in the key grooves.
Preferably, a groove for placing one end of the knife handle is formed in the knife sleeve, and the gap between the bottom of the groove and the end part of the knife handle is larger than 2 mm.
Preferably, the external key of the tool holder is connected with a limiting ring fixedly, the end face of the limiting ring is abutted against the end face of the tool sleeve, and the tool holder is a self-tightening chuck.
The preferred, the centre gripping subassembly is including fixing the locating piece in the top of cutter holder, be provided with the chuck on the locating piece, the chuck passes through chuck pull rod screw thread and installs on the locating piece, be fixed with the location boss on the cutter holder, the last laminating face and the last laminating face of having of location boss, the locating piece bottom is provided with the flexure strip, the locating notch has been seted up on the locating piece.
Preferably, the chuck is provided with a clamping opening, and the tool holder is internally threaded with a compression bolt; the end part of the chuck pull rod is provided with a cone table part integrally formed with the chuck pull rod, and the diameter of the large end of the cone table part is larger than the outer diameter of the external thread section of the chuck pull rod; the clamp is of a v-21274-shaped structure, the clamp is made of cast steel, and edges of the clamp are respectively provided with a fillet; a threaded hole is formed in the chuck, one end of the chuck pull rod is connected in the threaded hole in a threaded manner, and a reinforcing bolt is connected between the chuck pull rod and the chuck in a threaded manner; the elastic pieces are provided with four groups, and the shape of each elastic piece is L-shaped; the positioning blocks are rectangular blocks, the positioning bosses are four groups, and the four groups of the positioning bosses are respectively inserted into the positioning blocks; inner grooves are formed in two sides of the positioning boss.
In summary, the invention mainly has the following beneficial effects:
firstly, the invention uses the ball screw pair to have the characteristics of precise radial and axial positioning, changes the traditional conical positioning pair into the ball screw pair, generally, the invention has the advantages that the knife handle is arranged as a screw, the knife sleeve is arranged as a nut, the ball steel ball is arranged in the groove of the knife sleeve, the two ends of the knife sleeve are respectively provided with a left reverser snap ring, a left reverser, a right reverser snap ring and a right reverser for returning balls, ensures that all ball steel balls can normally roll in the knife sleeve and the knife handle groove of the knife handle and the knife sleeve groove in the process of screwing the knife handle, the rolling ball steel balls realize the circular motion through the left reverser snap ring, the left reverser, the right reverser snap ring and the ball returning holes on the knife sleeve, because the knife handle and the knife sleeve are respectively provided with a knife sleeve locking end face and a knife handle locking end face which are vertical to the axial line, when the knife sleeve is screwed in, the two end faces are contacted, the traditional pull rod locking mechanism can be replaced, and the positioning and locking performance is good;
secondly, the tool holder nut and the tool holder at the end part of the traditional tool holder are replaced by the chuck of the quick positioning fixture, namely the chuck can be changed into a quick-change chuck, so that the functions of quick positioning and quick change are realized; the rapid positioning fixture has the advantages of simple structure, easy manufacture, low cost, easy guarantee of precision and long service life. Therefore, will show immeasurable value in the future field of automated smart manufacturing.
Drawings
FIG. 1 is a cross-sectional view of a shank portion according to an embodiment of the present invention;
FIG. 2 is a second cross-sectional view of a tool shank portion according to an embodiment of the invention;
FIG. 3 is an exploded view of a shank portion according to one embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a steel ball retainer according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an embodiment of the present invention;
FIG. 6 is a second schematic structural diagram of an embodiment of the present invention;
FIG. 7 is a third exemplary diagram of an embodiment of the present invention;
FIG. 8 is a fourth schematic structural diagram of an embodiment of the present invention;
FIG. 9 is a schematic view of a positioning block portion of an embodiment of the present invention;
fig. 10 is a schematic diagram of a precise positioning according to an embodiment of the present invention.
Reference numerals: 1. a tool holder nut; 2. a tool holder; 3. a knife handle; 4. a dust ring snap ring; 5. a dust ring; 6. a left reverser snap ring; 7. a left inverter; 8. a ball steel ball; 9. a right inverter; 10. locking the spring cap; 11. a locking spring; 12. locking the steel ball; 13. a knife sheath; 14. locking the V-shaped groove; 15. a right reverser snap ring; 16. a steel ball retainer; 17. returning the bead holes; 18. a groove is formed in the tool holder; 19. a cutter pocket channel; 20. the end surface of the cutter sleeve is locked; 21. the end surface of the knife handle is locked; 22. the cutter handle guides the conical surface; 23. a chuck; 24. positioning blocks; 26. positioning the boss; 27. a chuck pull rod; 28. a positioning notch; 29. an elastic sheet; 30. a binding surface boss; 31. a lower bonding surface; 32. an upper binding face; 34. a hold-down bolt; 35. and (4) clamping the opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 4, a positioning and clamping device includes: the tool holder comprises a tool holder 2, a clamping assembly is connected onto the tool holder 2 and comprises a tool holder nut 1 which is assembled and fixed on the tool holder 2, a tool shank 3 is fixed on the tool holder 2, a tool sleeve 13 is arranged outside the tool shank 3, the tool sleeve 13 is fixedly connected with the tool shank 3 through a locking piece, a ball steel ball 8 is arranged between the tool sleeve 13 and the tool shank 3, a left reverser clamping ring 6, a left reverser 7, a right reverser clamping ring 15 and a right reverser 9 are further arranged between the tool sleeve 13 and the tool shank 3, a ball returning hole 17 and a tool shank channel 18 are formed in the tool shank 3, a tool shank channel 19 is arranged in the tool sleeve 13, a tool shank locking end face 20 is arranged at the end part of the tool shank 13, a tool shank 21 and a guiding conical face 22 are arranged at the end part of the tool shank 3, when the tool shank locking end face 20 and the tool shank locking end face 21, the knife handle 3 and the knife sleeve 13 are mutually accurately positioned and locked.
A steel ball retainer 16 is arranged outside the ball steel ball 8; the stability of the ball 8 can be ensured by the helical spring-shaped steel ball retainer 16 with a precise helical channel.
The locking piece comprises a locking spring cap 10, a locking spring 11, a locking steel ball 12 and a locking V-shaped groove 14, the locking spring cap 10 is fixed in the knife sleeve 13, the locking steel ball 12 is connected in the locking spring cap 10 through the locking spring 11, and the locking V-shaped groove 14 is formed in the knife handle 3 for the locking steel ball 12 to be clamped in.
A dustproof ring 5 is arranged between the knife handle 3 and the knife sleeve 13; the dust ring 5 can effectively prevent dust and other particle impurities from entering between the knife handle 3 and the guide sleeve 13, and the service life of the device can be prolonged.
The end part of the cutter handle 3 is provided with a conical embedding slot, the cutter holder 2 is provided with a conical insertion part which is integrally formed with the cutter holder 2, the conical insertion part is inserted into the embedding slot, and the cutter holder nut 1 is in threaded connection with the outside of the cutter handle 3; the stability of installing the cutter holder 2 in the cutter holder 3 can be increased by inserting the taper inserting part in the cutter holder 2 into the inserting groove at the end part of the cutter holder 3, the positioning precision and the stability of the integral assembly of the device can be improved, and the strength and the service life are improved.
Key grooves are formed in the tool holder 2 and the tool holder nut 1, and flat keys are arranged in the key grooves; when the end side of the holder 2 is provided with the key groove, the holder nut 1 can be prevented from being unintentionally detached when the holder nut 1 is mounted, and the structural stability after assembly can be improved.
A groove for placing one end of the knife handle 3 is formed in the knife sleeve 13, and the gap between the bottom of the groove and the end part of the knife handle 3 is larger than 2 mm; through set up the recess that supplies handle of a knife 3 to put into in the broach shell 13, can guarantee to have installation clearance allowance between broach shell 13 and the handle of a knife 3, can prevent to take place the rigidity when the installation is cut straightly and assault.
The external key of the tool holder 3 is fixedly connected with a limiting ring, and the end face of the limiting ring is abutted against the end face of the tool sleeve 13; the position of the tool holder 3 mounted to the tool sleeve 13 can be guaranteed by utilizing the limiting ring, and operation is convenient.
Wherein the tool holder 2 is a self-tightening chuck; when the tool holder 2 is employed as a self-tightening chuck, the quick fixing ability of the tool holder 2 can be improved.
The analysis shows that: the invention uses the ball screw pair with the characteristics of precise radial and axial positioning, changes the traditional conical surface positioning pair into the ball screw pair, generally, the knife handle 3 is arranged as a screw, the knife sleeve 13 is arranged as a nut, the ball steel ball 8 is arranged in the groove of the knife sleeve 13, the two ends of the knife sleeve 13 are respectively provided with a left reverser snap ring 6, a left reverser 7, a right reverser snap ring 15 and a right reverser 9 for returning balls, ensures that all the ball steel balls 8 can normally roll in the knife handle groove 18 and the knife sleeve groove 19 of the knife sleeve 13 and the knife handle 3 in the screwing process of the knife handle 3, the rolling ball steel ball 8 realizes the circular motion through the left reverser snap ring 6, the left reverser 7, the right reverser snap ring 15, the right reverser 9 and the ball returning hole 17 on the knife sleeve 13, because the knife handle 3 and the knife sleeve 13 are respectively provided with a knife sleeve locking end surface 20 and a locking end surface 21 which are vertical to the axis, when the knife handle 3 is screwed into the knife sleeve 13, the locking function can be realized when the two end surfaces are contacted, and then the traditional pull rod locking mechanism can be replaced, and the positioning and locking performance is good.
Example 2
Referring to fig. 5 to 10, the difference from embodiment 1 is that: in the change of the clamping assembly; the clamping assembly comprises a positioning block 24 fixed above the tool holder 2, and a clamping head 23 is arranged on the positioning block 24; in order to realize the quick-release and quick-assembly functions of the positioning clamp, the chuck 23 is installed on the positioning block 24 through a chuck pull rod 27 in a threaded manner; when using this quick positioning fixture, can utilize tool holder 2 to support, utilize chuck 23 fixed work piece, regard as the connecting piece between tool holder 2 and the chuck 23 with locating piece 24, owing to reform transform traditional structure into the form of chuck pull rod 27 outband screw thread, so can realize the quick detach function.
Referring to fig. 7, 8, 9 and 10, in order to realize the connection and positioning between the holder 2 and the positioning block 24, a positioning boss 26 is fixed on the holder 2, wherein the positioning boss 26 has a lower attaching surface 31 and an upper attaching surface 32, an elastic sheet 29 is arranged at the bottom of the positioning block 24, and a positioning notch 28 is formed in the positioning block 24; the positioning boss 26 is fixed on the cutter holder 2, so that the chuck 23 can be conveniently positioned, the positioning boss 26 can be inserted into the positioning boss 23 for positioning, the positioning notch 28 can be conveniently disassembled and assembled, and the function of positioning the elastic sheet 29 can be realized by utilizing the binding face boss 30.
Referring to fig. 5 and 6, in order to sufficiently fix the workpiece when the clamp is used, a clamping opening 35 is formed in the clamping head 23, and a pressing bolt 34 is connected to the clamping head 23 through an internal thread; when the workpiece is fixed in the clamping opening 35, the pressing bolt 34 is screwed down, so that firm locking can be realized.
Referring to fig. 5, the end of the chuck pull rod 27 is provided with a frustum portion 271 integrally formed with the chuck pull rod, the frustum portion faces away from the chuck 23, and the large end diameter of the frustum portion 271 is larger than the outer diameter of the external threaded section of the chuck pull rod 27; the frustum 271 at the end of the chuck pull rod 27 can be positioned when the chuck pull rod 27 is installed, and can be clamped and positioned when the chuck pull rod 23 is inserted into the tool holder 2.
Referring to fig. 5 and 6, the clip 23 is a v-21274, the clip 23 is made of cast steel, and the edges of the clip 23 are respectively provided with a round angle; the 21274; the clamping head 23 of shape can make things convenient for the fixed of work piece, adopts the clamping head 23 of cast steel material can improve wearability and life, and the fillet of the sideline department of clamping head 23 can reduce stress concentration phenomenon.
Referring to fig. 5 and 6, a threaded hole is formed in the chuck 23, one end of the chuck pull rod 27 is screwed in the threaded hole, and a reinforcing bolt is screwed between the chuck pull rod 27 and the chuck 23; when one end of the chuck pull rod 27 is screwed in the threaded hole, the chuck pull rod 27 and the chuck 23 can be assembled and disassembled.
Referring to fig. 7 and 8, wherein the elastic pieces 29 are provided in four sets, the elastic pieces 29 are L-shaped; the L-shaped elastic piece 29 can improve the press-fit fixing ability.
Referring to fig. 7 and 8, the positioning block 24 is a rectangular block, the positioning bosses 26 are four groups, the four groups of positioning bosses 26 are respectively inserted into the positioning block 24, and when the positioning block 24 is fixedly connected with the tool holder 2, the positioning bosses 26 can be inserted into the positioning block 24; in order to facilitate the inserting operation, inner grooves are formed on two sides of the positioning boss 26.
The analysis shows that: the tool holder nut and the tool holder at the end part of the traditional tool holder are replaced by the chuck 23 of the quick positioning fixture, namely the chuck can be changed into a quick-change chuck, so that the functions of quick positioning and quick change are realized; when the device is used, a workpiece can be fixed in the chuck 23, the tool holder 2 is fixed on mechanical equipment, and the chuck 23 can be conveniently disassembled, assembled and replaced due to the adoption of the chuck pull rod 27; therefore, the rapid positioning fixture has the advantages of simple structure, easy manufacture, low cost, easy guarantee of precision and long service life. Therefore, will show immeasurable value in the future field of automated smart manufacturing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A positioning and clamping device is characterized in that: the method comprises the following steps: the tool holder comprises a tool holder (2), a clamping assembly is connected onto the tool holder (2), the clamping assembly comprises a tool holder nut (1) which is assembled and fixed on the tool holder (2), a tool shank (3) is fixed on the tool holder (2), a tool sleeve (13) is arranged outside the tool shank (3), the tool sleeve (13) is fixedly connected with the tool shank (3) through a locking piece, a ball steel ball (8) is arranged between the tool sleeve (13) and the tool shank (3), a left reverser clamping ring (6), a left reverser (7), a right reverser clamping ring (15) and a right reverser (9) are further arranged between the tool sleeve (13) and the tool shank (3), a ball returning hole (17) and a tool shank channel (18) are formed in the tool shank (3), a tool sleeve channel (19) is arranged in the tool sleeve (13), and the end part of the tool sleeve (13) is provided with a tool sleeve locking end surface (20), the end part of the knife handle (3) is provided with a knife handle locking end surface (21) and a knife handle guiding conical surface (22), and when the knife sleeve locking end surface (20) is in close contact with the knife handle locking end surface (21), the knife handle (3) and the knife sleeve (13) are mutually accurately positioned and locked.
2. A positioning and clamping device, as set forth in claim 1, wherein: and a steel ball retainer (16) is arranged outside the ball steel ball (8).
3. A positioning and clamping device, as set forth in claim 1, wherein: the locking part comprises a locking spring cap (10), a locking spring (11), a locking steel ball (12) and a locking V-shaped groove (14), the locking spring cap (10) is fixed in the knife sleeve (13), the locking steel ball (12) is connected in the locking spring cap (10) through the locking spring (11), and the locking V-shaped groove (14) is formed in the knife handle (3) for the locking steel ball (12) to be clamped in.
4. A positioning and clamping device, as set forth in claim 1, wherein: a dustproof ring (5) is arranged between the knife handle (3) and the knife sleeve (13).
5. A positioning and clamping device, as set forth in claim 1, wherein: the end part of the knife handle (3) is provided with a conical embedding slot, the knife holder (2) is provided with a conical insertion part integrally formed with the knife holder (2), the conical insertion part is inserted into the embedding slot, and the knife holder nut (1) is in threaded connection with the outside of the knife handle (3).
6. A positioning and clamping device, as set forth in claim 5, characterized in that: key grooves are formed in the tool holder (2) and the tool holder nut (1), and flat keys are arranged in the key grooves.
7. A positioning and clamping device, as set forth in claim 1, wherein: the knife sleeve (13) is internally provided with a groove for placing one end of the knife handle (3), and the gap between the bottom of the groove and the end part of the knife handle (3) is larger than 2 mm.
8. A positioning and clamping device, as set forth in claim 1, wherein: the external key of handle of a knife (3) is connected and is fixed with the spacing ring, the terminal surface of spacing ring with the terminal surface of broach shell (13) is contradicted each other, cutter holder (2) are the self-tightening chuck.
9. A positioning and clamping device, as set forth in claim 1, wherein: the clamping assembly further comprises a positioning block (24) fixed above the tool holder (2), a chuck (23) is arranged on the positioning block (24), the chuck (23) is installed on the positioning block (24) through a chuck pull rod (27) in a threaded mode, a positioning boss (26) is fixed on the tool holder (2), a lower attaching face (31) and an upper attaching face (32) are arranged on the positioning boss (26), an elastic sheet (29) is arranged at the bottom of the positioning block (24), and a positioning notch (28) is formed in the positioning block (24).
10. A positioning and clamping device, as claimed in claim 9, wherein: a clamping opening (35) is formed in the clamping head (23), and a pressing bolt (34) is connected with the clamping head (23) through an internal thread; the end part of the chuck pull rod (27) is provided with a conical table part (271) which is integrally formed with the chuck pull rod, and the diameter of the large end of the conical table part (271) is larger than the outer diameter of the external thread section of the chuck pull rod (27); the clamp head (23) is in a shape of a letter 21274, the clamp head (23) is made of cast steel, and edges of the clamp head (23) are respectively provided with a round angle; a threaded hole is formed in the chuck (23), one end of the chuck pull rod (27) is connected in the threaded hole in a threaded manner, and a reinforcing bolt is connected between the chuck pull rod (27) and the chuck (23) in a threaded manner; four groups of elastic pieces (29) are arranged, and the elastic pieces (29) are L-shaped; the positioning blocks (24) are rectangular blocks, the positioning bosses (26) are four groups, and the four groups of positioning bosses (26) are respectively inserted in the positioning blocks (24); inner grooves are formed in the two sides of the positioning boss (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011560531.8A CN112720008A (en) | 2020-12-25 | 2020-12-25 | Positioning and clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011560531.8A CN112720008A (en) | 2020-12-25 | 2020-12-25 | Positioning and clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112720008A true CN112720008A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011560531.8A Pending CN112720008A (en) | 2020-12-25 | 2020-12-25 | Positioning and clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112720008A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621272A (en) * | 2020-12-25 | 2021-04-09 | 池州市邦鼐机电科技有限公司 | Ball screw pair positioning and clamping device |
| CN114393462A (en) * | 2021-12-08 | 2022-04-26 | 徐州中嘉木业有限公司 | Energy-concerving and environment-protective circular tubular metal resonator cutting port burr clearance mechanism |
-
2020
- 2020-12-25 CN CN202011560531.8A patent/CN112720008A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621272A (en) * | 2020-12-25 | 2021-04-09 | 池州市邦鼐机电科技有限公司 | Ball screw pair positioning and clamping device |
| CN114393462A (en) * | 2021-12-08 | 2022-04-26 | 徐州中嘉木业有限公司 | Energy-concerving and environment-protective circular tubular metal resonator cutting port burr clearance mechanism |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210430 |
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| WD01 | Invention patent application deemed withdrawn after publication |