CN114799241A - High-precision pneumatic tailstock for machining center - Google Patents
High-precision pneumatic tailstock for machining center Download PDFInfo
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- CN114799241A CN114799241A CN202210568091.3A CN202210568091A CN114799241A CN 114799241 A CN114799241 A CN 114799241A CN 202210568091 A CN202210568091 A CN 202210568091A CN 114799241 A CN114799241 A CN 114799241A
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- Prior art keywords
- shaft
- telescopic shaft
- telescopic
- pneumatic tailstock
- propelling
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000007667 floating Methods 0.000 claims abstract description 32
- 238000007664 blowing Methods 0.000 claims abstract description 16
- 238000003754 machining Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 12
- 239000002173 cutting fluid Substances 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001141 propulsive effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
- B23B23/04—Live centres
- B23B23/045—Live centres the centres being adjustable
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/005—Devices for removing chips by blowing
Abstract
The invention discloses a high-precision pneumatic tailstock for a machining center, which relates to the technical field of workpiece tool design, and is characterized in that a shaft sleeve assembly is connected with a telescopic shaft in a sliding manner, so that the friction force between the telescopic shaft and the telescopic direction is reduced; a propelling component is arranged to pneumatically control the extension and contraction of the telescopic shaft; the propelling component is connected with the telescopic shaft through the floating mechanism, so that the mounting precision requirement is reduced, the propelling component is stably connected with the telescopic shaft within the allowable precision error range, and the action is maintained to be stable; the brake mechanism locks the telescopic shaft after the telescopic shaft moves in place, so that the displacement of the telescopic shaft is limited, and the clamping stability is improved; the shaft rotation follow-up mechanism plays a role in connecting the centre and the telescopic shaft, so that the centre can rotate relative to the telescopic shaft, the abrasion to a workpiece is reduced, and the clamping quality is improved; the blowing assembly can blow off cutting scraps or cutting liquid which are generated during tool machining and fall on the telescopic shaft, so that the cutting scraps or the cutting liquid is prevented from entering the shaft sleeve assembly or the base body to cause influence; the problem of pneumatic tailstock clamping quality and effect not good is solved.
Description
Technical Field
The invention relates to the technical field of workpiece tool design, in particular to a high-precision pneumatic tailstock for a machining center.
Background
The four-axis horizontal machining center is additionally provided with a rotary worktable on the basis of the original three-axis machining center. The tail end of the rotary worktable is provided with clamps such as a three-jaw chuck and the like to clamp and process the part. After the workpiece is clamped, a worker shakes a tailstock handle, the tip of the tailstock is fed in the axial direction to tightly push the workpiece, then a brake is pulled, the tip keeps the axial position unchanged, and the workpiece starts to be machined. When a manual tailstock is adopted for processing, a long time is needed for installation and debugging, the braking position and the jacking force are ensured by the experience of workers, and the quality of a product is greatly influenced by the operation of the workers. The other type is a pneumatic tailstock, the center is ejected out by a cylinder, and the cylinder keeps certain ejecting force during processing. The pneumatic tailstock has the defects that the friction force of a transmission structure of the pneumatic tailstock is too large, so that the propelling force and the speed cannot be accurately adjusted, certain thin-wall workpieces are easy to damage and crush the tightly pressed parts during processing, and the clamping quality and the clamping effect of the pneumatic tailstock are poor; in addition, a machining center in the prior art can generate a large amount of cutting chips or cutting fluid to be attached to a tailstock center during cutting, and the cutting chips or the cutting fluid can enter the tailstock after being used for a long time, so that the tailstock is damaged or jammed, and pneumatic clamping of the tailstock is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a high-precision pneumatic tailstock for a machining center, which solves the problems of poor clamping quality and poor clamping effect of the pneumatic tailstock in the prior art.
The technical scheme of the invention is realized as follows: a high-precision pneumatic tailstock for a machining center comprises a seat body, wherein a shaft sleeve assembly is arranged on the seat body and is in sliding connection with a telescopic shaft, a shaft rotating servo mechanism is arranged at one end of the telescopic shaft and is connected with a tip through the shaft rotating servo mechanism, the telescopic shaft is connected with a propelling assembly through a floating connecting device, the propelling assembly is arranged on the seat body, a braking mechanism matched with the telescopic shaft is arranged on the side wall of the seat body, a blowing assembly is arranged on the seat body, and the blowing assembly corresponds to the telescopic shaft.
Preferably, the shaft sleeve assembly comprises a bushing coaxially arranged with the telescopic shaft, the bushing is fixedly connected with the base body, a sealing cover plate which is coaxially arranged with the telescopic shaft and detachably connected with the base body is arranged on one side of the bushing, a sealing gasket is fixedly arranged on the sealing cover plate, and the sealing gasket is in sliding fit with the telescopic shaft.
Preferably, the bushing is a copper oilless bushing, the sealing gasket is a Y-shaped sealing ring, and an opening of the Y-shaped sealing ring faces to one side of the tip.
Preferably, the telescopic shaft comprises a shaft body, a knurled plane is arranged on the shaft body, the shaft body is matched with the brake mechanism through the knurled plane, the middle of the shaft body is connected with the floating connection device through a bolt, and one end of the shaft body is in threaded connection with the shaft rotation follow-up mechanism.
Preferably, the braking mechanism comprises a braking cylinder arranged on the side wall of the seat body, a length adjusting bolt is arranged on a telescopic portion of the braking cylinder and connected with a pressure head, and the pressure head corresponds to the knurled plane.
Preferably, the pressure head is the polyurethane pressure head, length adjustment bolt includes the bolt, and the bolt passes through first nut and pressure head fixed connection, bolt and pars contractilis threaded connection and through the locking of second nut.
Preferably, the floating connection device comprises a connection piece connected with the shaft body through a bolt, the connection piece is in floating connection with the propelling component through a floating joint, and a buffer matched with the connection piece is fixedly arranged on the seat body.
Preferably, the propelling component comprises a propelling cylinder fixedly arranged on the base body, a propelling rod part of the propelling cylinder is connected with the floating joint, and a servo proportional valve is arranged at an air inlet end of the propelling cylinder.
Preferably, the shaft rotation follow-up mechanism comprises a connecting shaft in threaded connection with the telescopic shaft, a bearing is arranged on the connecting shaft and is connected with an adapter through the bearing, the bearing is a thrust roller bearing, and clamping surfaces are arranged on the side walls of the adapter and the tip.
Preferably, the air blowing assembly comprises two air pipe connectors which are detachably arranged on the base body and symmetrically arranged on two sides of the telescopic shaft, the air pipe connectors are connected with one air inlet pipe and two air outlet pipes, two air outlets of the one air inlet pipe and the two air outlet pipes are respectively provided with an air outlet nozzle, and the air outlet direction of the air outlet nozzle corresponds to the side wall of the telescopic shaft.
The invention has the beneficial effects that:
1: the shaft sleeve assembly is connected with the telescopic shaft in a sliding manner, so that the friction force between the telescopic shaft and the telescopic direction is reduced; the extension and contraction of the telescopic shaft can be pneumatically controlled by arranging the propelling component; the propelling component is connected with the telescopic shaft through the floating mechanism, so that the precision requirement on the installation of the propelling component can be reduced, the propelling component and the telescopic shaft can be stably connected within an allowable precision error range, and the propelling component is maintained to drive the telescopic shaft to extend and retract stably; the brake mechanism locks the telescopic shaft after the telescopic shaft moves in place, limits the displacement of the telescopic shaft during working and improves the stability of clamping; the shaft rotation follow-up mechanism plays a role in connecting the center and the telescopic shaft, and enables the center to rotate relative to the telescopic shaft, so that a workpiece can freely rotate when the workpiece is clamped conveniently, the abrasion to the workpiece is reduced, and the clamping quality is improved; the blowing assembly can blow off chips or cutting fluid which are generated during tool machining and fall on the telescopic shaft, so that the chips or the cutting fluid are prevented from entering the shaft sleeve assembly or the base body along with the movement of the telescopic shaft to influence the transmission of an internal structure; the quick clamping to the work piece has been realized, has solved among the prior art problem that pneumatic tailstock clamping quality and effect are not good.
2: the Y-shaped sealing ring is arranged to be in sliding connection with the telescopic shaft, so that the telescopic shaft is guaranteed to have smaller friction when extending outwards on the premise that the axial movement motion of the telescopic shaft is waterproof, the telescopic shaft can enable the tip to be in harmless contact with a workpiece under the action of smaller air pressure and flow of the propelling assembly, and the telescopic shaft is quickly contracted by using higher air pressure when being retracted; the servo proportional valve is arranged, so that the pressure, the flow and the direction of the air pressure can be accurately controlled; the problem of among the prior art can't the accuracy adjust propulsive force and speed is solved, clamping precision and quality are further improved.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view of a three-dimensional structure according to the present invention;
FIG. 3 is a schematic cross-sectional view of a three-dimensional structure according to the present invention;
FIG. 4 is an enlarged view of area A of FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of area B of FIG. 2 according to the present invention;
FIG. 6 is a schematic view of the floating connection device according to the present invention;
fig. 7 is a schematic view of the gasket structure of the present invention.
In the figure: 1: seat body, 2: shaft sleeve assembly, 3: telescopic shaft, 4: shaft rotation follow-up mechanism, 5: tip, 6: floating connection device, 7: propulsion assembly, 8: brake mechanism, 9: air blowing assembly, 21: bushing, 22: sealing cover plate, 23: gasket, 31: knurled plane, 11: brake cylinder, 12: pressure head, 13: length adjusting bolt, 14: bolt, 15: first nut, 16: second nut, 17: expansion and contraction section, 61: connecting piece, 62: floating joint, 63: buffer, 71: propulsion cylinder, 41: connecting shaft, 42: bearing, 43: adapter, 44: clamping surface, 91: air pipe joint, 92: air duct, 93: an air outlet nozzle.
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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, 2 and 3, in embodiment 1, a high-precision pneumatic tailstock for a machining center includes a base 1, a shaft sleeve assembly 2 is fixedly disposed on the base 1 and slidably connected to a telescopic shaft 3 through the shaft sleeve assembly 2, in this embodiment, two sets of shaft sleeve assemblies 2 are disposed on the base, and are respectively disposed at two ends of the base. The shaft sleeve assembly 2 can reduce the friction force between the telescopic shaft and the telescopic direction on the premise of satisfying the axial sliding of the telescopic shaft. One end of the telescopic shaft 3 is provided with a shaft rotation follow-up mechanism 4, a tip 5 is connected with the shaft rotation follow-up mechanism 4, the shaft rotation follow-up mechanism plays a role in connecting the tip and the telescopic shaft, the tip can rotate relative to the telescopic shaft, a workpiece can freely rotate when the workpiece is conveniently clamped, abrasion to the workpiece is reduced, and the clamping quality is improved. The length of telescopic shaft is longer than the pedestal length, and when the telescopic shaft stretches out, telescopic shaft one end flushes with the pedestal, and the one end that has top stretches out the pedestal certain distance, and when the telescopic shaft shrink, the one end that the telescopic shaft has top contracts to the pedestal, and the other end stretches out the pedestal. The telescopic shaft 3 is connected with a propelling component 7 fixedly arranged on the base body through a floating connecting device 6, the propelling component 7 realizes the stretching and shrinking of the pneumatic control telescopic shaft, the floating connecting device 6 can reduce the precision requirement on the installation of the propelling component, so that the propelling component and the telescopic shaft can be stably connected within the allowable precision error range, and the propelling component is maintained to drive the telescopic shaft to stretch out and shrink stably. The side wall of the base body 1 is provided with a braking mechanism 8 matched with the telescopic shaft 3, the braking mechanism 8 locks the telescopic shaft after the telescopic shaft moves in place, axial and circumferential displacements of the telescopic shaft during working are limited, and the stability of clamping is improved. The base body 1 is provided with the air blowing assembly 9, the air blowing assembly 9 is arranged at one end, close to the tip, of the base body, the air blowing assembly 9 corresponds to the telescopic shaft 3, chips or cutting liquid which are generated during tool machining and fall on the telescopic shaft can be blown off by the air blowing assembly, and the situation that the chips or the cutting liquid enters the shaft sleeve assembly or the base body along with the movement of the telescopic shaft and influences the transmission of an internal structure is prevented.
When the embodiment is applied, the propelling assembly 7 contracts before a workpiece is clamped, and meanwhile, the propelling assembly is driven to stretch to the initial position through the floating connecting device 6, so that the distance between the tip and a chuck of a machine tool is increased. When a workpiece is clamped, the workpiece is fixed on a chuck of a machine tool, then the pushing assembly is started, the pushing assembly pushes the floating connecting device to drive the telescopic shaft to extend out, the tip is in contact with the workpiece, the brake mechanism 8 works when the tip is in contact with the workpiece in place, the telescopic shaft is locked, the workpiece and the tip are relatively fixed, and when the chuck of the machine tool drives the workpiece to rotate, the tip rotates along with the workpiece under the action of the shaft rotation follow-up mechanism 4. When the workpiece is dismounted, the air blowing assembly is started, the propelling assembly is utilized to drive the floating connecting device to further drive the telescopic shaft to contract, chips or cutting fluid on the telescopic shaft are blown down, the tip is separated from the workpiece, and the workpiece is dismounted.
Further, bush 21 is copper oilless bush, copper oilless bush can have higher life and bearing pressure, be applicable to the low-speed, the heavy load occasion, sealed pad 23 is Y type sealing washer, specifically be the Y type sealing washer of butadiene acrylonitrile rubber material, the cross-section of Y type sealing washer is the Y style of calligraphy, the opening of Y style of calligraphy is towards top 5, can be when guaranteeing telescopic shaft axial motion waterproof basis, it is waterproof to prevent promptly that the epaxial adnexed liquid of telescopic shaft from passing through Y type sealing washer, opening direction is towards top direction, have littleer frictional force between the time and Y type sealing washer when can guaranteeing telescopic shaft to stretch out.
This embodiment is when using, and when the work piece clamping, the telescopic shaft stretches out and makes top and work piece cooperation after, and the arrestment mechanism action contacts and supports tightly with the annular knurl plane of axis body, and the axial displacement and the circumferential direction of restriction axis body avoid the axis body to rotate or remove and bring the clamping precision error.
As shown in fig. 4, in embodiment 4, based on embodiment 3, the braking mechanism 8 includes a braking cylinder 11 detachably disposed on the sidewall of the seat body 1, a length adjusting bolt 13 is disposed on the expansion portion 17 of the braking cylinder 11, the length adjusting bolt 13 is connected to a pressing head 12, and the pressing head 12 corresponds to the knurled plane 31.
Further, the indenter 12 is a polyurethane indenter having a smaller compression deformability. The length adjusting bolt 13 comprises a bolt 14, the bolt 14 is locked with the pressure head 12 through a first nut 15, and the bolt 14 is in threaded connection with a telescopic part 17 of the brake cylinder 11 and is locked through a second nut 16. When the adjusting device is used, the second nut can be unlocked, then the adjusting bolt is screwed into the length of the telescopic part, and then the second nut is locked, so that the length adjusting function is realized, and further the initial distance between the pressure head 12 and the brake cylinder can be adjusted according to actual conditions.
When the embodiment is applied and the telescopic shaft is locked, the telescopic part of the brake cylinder extends out of the brake cylinder, and the length adjusting bolt drives the pressure head to press the knurled plane of the telescopic shaft to complete locking. When the locking is released, the telescopic part contracts to drive the pressure head to be separated from the knurled plane.
As shown in fig. 6, in embodiment 5, in addition to embodiment 4, the floating connection device 6 includes a connection piece 61 bolted to the shaft body, and the connection piece 61 is connected to the propulsion unit 7 in a floating manner through a floating joint 62, so as to prevent wear and shaking of the telescopic shaft and the connection piece due to eccentricity, poor balance precision, and the like when the cylinder is mounted. In this embodiment, floating joint 62 is equipped with the draw-in groove including the fixed fixture block of establishing on connecting piece 61 on the fixture block, is equipped with floating head in the draw-in groove, and floating head and propulsion subassembly 7 threaded connection, but floating head position fine setting in the draw-in groove is promptly for floating connection, realizes the adjustable of propulsion subassembly 7 and connecting piece to be connected, and then reduces the installation accuracy requirement to propulsion subassembly. The base body 1 is fixedly provided with a buffer 63 matched with the connecting piece 61. Optional air compression buffer and spring compression buffer of buffer 63, preferred spring compression buffer in this embodiment, including the fixed sleeve of establishing on the pedestal, it is equipped with the guide arm to slide in the sleeve, guide arm one end is equipped with the buffering head, the buffering head is corresponding with the connecting piece, be equipped with the spring between guide arm and the sleeve, the buffer can play the cushioning effect to the connecting piece, after buffering head and connecting piece contact, guide arm compression spring, produce reaction force to the connecting piece, thereby make the connecting piece slow down, the connecting piece stops the back, arrestment mechanism locks the telescopic link, arrestment mechanism removes the locking after the processing is accomplished, the spring makes the guide arm reset. The buffer plays the role of buffering and damping the telescopic shaft and the propelling component during movement, and avoids collision when the tip moves at an excessively high speed and contacts with a workpiece.
Embodiment 6, on the basis of embodiment 5, the propulsion assembly 7 includes a propulsion cylinder 71 fixedly disposed on the seat body 1, a push rod portion of the propulsion cylinder 71 is connected to the floating joint 62, specifically, the push rod portion is in threaded connection with the floating joint, a servo proportional valve is disposed at an air inlet end of the propulsion cylinder 71, and the servo proportional valve is disposed to achieve accurate control of pressure, flow rate and direction of air pressure.
This embodiment is when using, the Y type sealing washer guarantees that the telescopic shaft structure has less frictional force when outwards stretching out, make the telescopic shaft can only need less atmospheric pressure and flow when stretching out, control is more nimble, utilize servo proportional valve to carry out atmospheric pressure and flow and control, adjust the propulsive force and the speed of propulsion cylinder, and then realize controlling telescopic shaft and top propulsive force and speed, make top and work piece do not have the wound contact, utilize higher atmospheric pressure to overcome the frictional force shrink fast with the telescopic shaft when withdrawing, and efficiency is improved.
As shown in fig. 5, in embodiment 7, based on embodiment 6, the shaft rotation following mechanism 4 includes a connecting shaft 41 in threaded connection with the telescopic shaft 3, the connecting shaft 41 is provided with a bearing 42 and is connected with an adapter 43 through the bearing 42, and the adapter 43 is in threaded connection with the tip 5; the bearing 42 is preferably a thrust roller bearing capable of bearing both axial and radial loads. The side walls of the adapter 43 and the tip 5 are provided with clamping surfaces 44, and the installation of the adapter and the tip can be facilitated by the clamping surfaces 44.
When the rotary adapter is applied and clamped, the center is in contact with a workpiece, when the workpiece rotates, the workpiece drives the center to further drive the adapter to rotate, and the adapter rotates relative to the connector under the action of the bearing.
When the embodiment is applied, after the workpiece is clamped, the air pump is started when the shrinkage shaft shrinks, the air pump blows air from the air outlet nozzle through the air pipe joint and the air pipes, so that cutting chips and cutting fluid on the surface of the telescopic shaft are blown down, and the cutting chips and the cutting fluid are prevented from entering the shaft sleeve assembly or the seat body.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a machining center is with high-accuracy pneumatic tailstock which characterized in that: the air blowing seat comprises a seat body (1), wherein a shaft sleeve assembly (2) is arranged on the seat body (1), the shaft sleeve assembly (2) is connected with a telescopic shaft (3) in a sliding mode, a shaft rotating follow-up mechanism (4) is arranged at one end of the telescopic shaft (3) and is connected with a tip (5) through the shaft rotating follow-up mechanism (4), the telescopic shaft (3) is connected with a propelling assembly (7) through a floating connecting device (6), the propelling assembly (7) is arranged on the seat body (1), a braking mechanism (8) matched with the telescopic shaft (3) is arranged on the side wall of the seat body (1), an air blowing assembly (9) is arranged on the seat body (1), and the air blowing assembly (9) corresponds to the telescopic shaft (3).
2. The high-precision pneumatic tailstock for machining centers according to claim 1, wherein: the shaft sleeve assembly (2) comprises a bushing (21) coaxially arranged with the telescopic shaft (3), the bushing (21) is fixedly connected with the base body (1), a sealing cover plate (22) which is coaxially arranged with the telescopic shaft (3) and detachably connected with the base body (1) is arranged on one side of the bushing (21), a sealing gasket (23) is fixedly arranged on the sealing cover plate (22), and the sealing gasket (23) is in sliding fit with the telescopic shaft (3).
3. The high-precision pneumatic tailstock for machining centers according to claim 3, wherein: the bushing (21) is a copper oilless bushing, the sealing gasket (23) is a Y-shaped sealing ring, and the opening of the Y-shaped sealing ring faces to one side of the tip (5).
4. The high-precision pneumatic tailstock for a machining center according to any one of claims 1 to 3, comprising: the telescopic shaft (3) comprises a shaft body, a knurled plane (31) is arranged on the shaft body, the shaft body is matched with the brake mechanism (8) through the knurled plane (31), the middle of the shaft body is in bolted connection with the floating connection device (6), and one end of the shaft body is in threaded connection with the shaft rotation follow-up mechanism (4).
5. The high-precision pneumatic tailstock for machining centers according to claim 4, wherein: the brake mechanism (8) comprises a brake cylinder (11) arranged on the side wall of the seat body (1), a length adjusting bolt (13) is arranged on a telescopic portion (17) of the brake cylinder (11), the length adjusting bolt (13) is connected with a pressure head (12), and the pressure head (12) corresponds to the knurled plane (31).
6. The high-precision pneumatic tailstock for machining centers according to claim 5, wherein: the pressure head (12) is a polyurethane pressure head, the length adjusting bolt (13) comprises a bolt (14), the bolt (14) is fixedly connected with the pressure head (12) through a first nut (15), and the bolt (14) is in threaded connection with the telescopic part (17) and locked through a second nut (16).
7. The high-precision pneumatic tailstock for machining centers according to claim 6, wherein: the floating connecting device (6) comprises a connecting piece (61) connected with a shaft body bolt, the connecting piece (61) is connected with the propelling component (7) in a floating mode through a floating joint (62), and a buffer (63) matched with the connecting piece (61) is fixedly arranged on the base body (1).
8. The high-precision pneumatic tailstock for machining centers according to claim 7, wherein: the propelling component (7) comprises a propelling cylinder (71) fixedly arranged on the base body (1), a propelling rod part of the propelling cylinder (71) is connected with the floating joint (62), and a servo proportional valve is arranged at the air inlet end of the propelling cylinder (71).
9. The high-precision pneumatic tailstock for machining centers according to any one of claims 1 to 3 and 5 to 8, comprising: the shaft rotation follow-up mechanism (4) comprises a connecting shaft (41) in threaded connection with the telescopic shaft (3), a bearing (42) is arranged on the connecting shaft (41) and is connected with an adapter (43) through the bearing (42), the bearing (42) is a thrust roller bearing, and clamping surfaces (44) are arranged on the side walls of the adapter (43) and the tip (5).
10. The high-precision pneumatic tailstock for machining centers according to claim 9, wherein: the blowing assembly (9) comprises two air pipe connectors (91) which are detachably arranged on the base body (1) and symmetrically arranged on two sides of the telescopic shaft (3), the air pipe connectors (91) are connected with an air inlet pipe and an air outlet pipe (92), two air outlets of the air inlet pipe and the air outlet pipe (92) are respectively provided with an air outlet nozzle (93), and the air outlet direction of the air outlet nozzle (93) corresponds to the side wall of the telescopic shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210568091.3A CN114799241B (en) | 2022-05-24 | 2022-05-24 | High-precision pneumatic tailstock for machining center |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210568091.3A CN114799241B (en) | 2022-05-24 | 2022-05-24 | High-precision pneumatic tailstock for machining center |
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| Publication Number | Publication Date |
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| CN114799241A true CN114799241A (en) | 2022-07-29 |
| CN114799241B CN114799241B (en) | 2023-10-27 |
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| CN2925702Y (en) * | 2006-05-20 | 2007-07-25 | 湖北三环离合器有限公司 | Flexible elastic tip |
| CN103934482A (en) * | 2014-05-15 | 2014-07-23 | 中国工程物理研究院机械制造工艺研究所 | Ultra-precise air floatation top |
| CN106623998A (en) * | 2016-12-25 | 2017-05-10 | 重庆德运模具制造有限公司 | Lathe pneumatic ejecting device |
| CN106735311A (en) * | 2016-12-25 | 2017-05-31 | 重庆德运模具制造有限公司 | Pneumatic clamping formula engine lathe |
| CN107282952A (en) * | 2017-08-08 | 2017-10-24 | 常州克迈特数控科技有限公司 | Adjustable suspension arm configuration tailstock centre device |
| CN107716955A (en) * | 2017-09-26 | 2018-02-23 | 平湖智铂自动化设备有限公司 | A kind of centre for lathe governor motion |
| CN108746677A (en) * | 2018-08-02 | 2018-11-06 | 林子尊 | It is a kind of pneumatically can it is automatic locking and with insurance function lathe |
| CN208162633U (en) * | 2018-01-21 | 2018-11-30 | 临海市高级职业中学 | A kind of drawing and pressing type tailstock mechanism of processing thin and long shafts workpiece |
| CN208613771U (en) * | 2018-07-06 | 2019-03-19 | 西安巨浪精密机械有限公司 | A kind of row's knife lathe Pneumatic tailstock |
| CN109514335A (en) * | 2017-09-20 | 2019-03-26 | 天津三智科技发展有限公司 | A kind of online debris removal lathe |
| CN109954892A (en) * | 2018-11-01 | 2019-07-02 | 湖大海捷(湖南)工程技术研究有限公司 | A kind of tail stock for machine tool of top rotational structure |
| CN210790560U (en) * | 2019-10-23 | 2020-06-19 | 陕西秦川格兰德机床有限公司 | Hydraulic quick unloading telescopic tailstock of small-sized grinding machine |
| CN212734184U (en) * | 2020-03-11 | 2021-03-19 | 无锡市润和机械有限公司 | Oil-gas double-control anti-deformation tailstock |
| CN214023521U (en) * | 2020-10-28 | 2021-08-24 | 昆山众玉杰机械有限公司 | Lathe center device with low cost, high precision and convenient installation |
| KR20210133815A (en) * | 2020-04-29 | 2021-11-08 | 두산공작기계 주식회사 | Tail stock of machine tool |
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| CN106623998A (en) * | 2016-12-25 | 2017-05-10 | 重庆德运模具制造有限公司 | Lathe pneumatic ejecting device |
| CN106735311A (en) * | 2016-12-25 | 2017-05-31 | 重庆德运模具制造有限公司 | Pneumatic clamping formula engine lathe |
| CN107282952A (en) * | 2017-08-08 | 2017-10-24 | 常州克迈特数控科技有限公司 | Adjustable suspension arm configuration tailstock centre device |
| CN109514335A (en) * | 2017-09-20 | 2019-03-26 | 天津三智科技发展有限公司 | A kind of online debris removal lathe |
| CN107716955A (en) * | 2017-09-26 | 2018-02-23 | 平湖智铂自动化设备有限公司 | A kind of centre for lathe governor motion |
| CN208162633U (en) * | 2018-01-21 | 2018-11-30 | 临海市高级职业中学 | A kind of drawing and pressing type tailstock mechanism of processing thin and long shafts workpiece |
| CN208613771U (en) * | 2018-07-06 | 2019-03-19 | 西安巨浪精密机械有限公司 | A kind of row's knife lathe Pneumatic tailstock |
| CN108746677A (en) * | 2018-08-02 | 2018-11-06 | 林子尊 | It is a kind of pneumatically can it is automatic locking and with insurance function lathe |
| CN109954892A (en) * | 2018-11-01 | 2019-07-02 | 湖大海捷(湖南)工程技术研究有限公司 | A kind of tail stock for machine tool of top rotational structure |
| CN210790560U (en) * | 2019-10-23 | 2020-06-19 | 陕西秦川格兰德机床有限公司 | Hydraulic quick unloading telescopic tailstock of small-sized grinding machine |
| CN212734184U (en) * | 2020-03-11 | 2021-03-19 | 无锡市润和机械有限公司 | Oil-gas double-control anti-deformation tailstock |
| KR20210133815A (en) * | 2020-04-29 | 2021-11-08 | 두산공작기계 주식회사 | Tail stock of machine tool |
| CN214023521U (en) * | 2020-10-28 | 2021-08-24 | 昆山众玉杰机械有限公司 | Lathe center device with low cost, high precision and convenient installation |
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| CN114799241B (en) | 2023-10-27 |
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