CN112809029B - Turning lathe with remove accurate and tight tailstock of stabilizing in top - Google Patents
Turning lathe with remove accurate and tight tailstock of stabilizing in top Download PDFInfo
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- CN112809029B CN112809029B CN202110032852.9A CN202110032852A CN112809029B CN 112809029 B CN112809029 B CN 112809029B CN 202110032852 A CN202110032852 A CN 202110032852A CN 112809029 B CN112809029 B CN 112809029B
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- tailstock
- telescopic sleeve
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- installation cavity
- movable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
Abstract
The invention discloses a turning machine tool with a tailstock which is accurate in movement and capable of being pushed tightly and stably, and the turning machine tool comprises a machine tool and a tailstock fixedly arranged at the upper end of the machine tool, wherein a hydraulic cylinder is fixedly arranged on one side of the tailstock, a telescopic sleeve is arranged on one side, far away from the hydraulic cylinder, in the tailstock, a hydraulic rod on the hydraulic cylinder penetrates through the side wall of the tailstock and is fixedly connected with one end of the telescopic sleeve in the tailstock, and a pushing-tight stabilizing mechanism is arranged in the tailstock. The tailstock telescopic sleeve fixing device can fix the telescopic sleeve in the axial direction and the horizontal direction through the locking groove, the locking block, the elastic sleeve and the limiting abutting rod, so that the telescopic sleeve in the tailstock can move accurately, the workpiece is tightly pressed and stable, the machining precision of the workpiece is improved, the tailstock telescopic sleeve fixing device is simple in structure, convenient to operate, high in automation degree, free of electric control equipment, low in production cost and convenient to popularize and popularize.
Description
Technical Field
The invention relates to the technical field of turning machine tools, in particular to a turning machine tool with a tailstock which is accurate in movement and stable in jacking.
Background
A turning machine tool is a machine tool for turning, which is called a lathe for short, and lathe machining is a part of mechanical machining. Lathe machining mainly uses a lathe tool to perform turning machining on a rotating workpiece. The lathe can also be used for corresponding processing by using a drill bit, a reamer, a screw tap, a die, a knurling tool and the like. Lathes are used primarily for machining shafts, discs, sleeves and other workpieces having a surface of revolution, and are the most widely used type of machine tool in machine manufacturing and repair plants. When a tailstock in a machine tool is used for machining shaft parts, the top of the tailstock is used for tightly pushing a workpiece, the machining stability is guaranteed, and the movement of the tailstock comprises the movement of a tailstock body and the movement of a tailstock sleeve. The movement of the tailstock body has two functions: one function is to adjust the tailstock to the use position when processing the shaft parts; the other function is to adjust the tailstock to a non-interference position when the short shaft and the disc parts are processed; the tailstock sleeve is moved to press or release the center against the workpiece, and is usually controlled by a hydraulic cylinder.
The jacking force of the conventional tailstock is generally realized through a hydraulic oil cylinder, although the jacking force can be kept unchanged theoretically, the pressure of a hydraulic system fluctuates and is not stable enough, and the tailstock centre is easy to move slightly during turning, so that the machining precision of a workpiece is reduced.
Disclosure of Invention
The invention aims to provide a turning machine tool with a tailstock which is accurate in movement and stable in jacking, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a turning lathe with remove accurate and tight tailstock of stabilizing in top, includes the lathe and fixes and set up in lathe upper end tailstock, one side of tailstock is fixed and is provided with the pneumatic cylinder, the inside one side of keeping away from the pneumatic cylinder of tailstock is provided with the telescope tube, hydraulic stem on the pneumatic cylinder passes the lateral wall of tailstock to fixed connection sets up the one end at the inside telescope tube of tailstock, the inside of tailstock is provided with the tight stabilizing mean in top.
In a preferred embodiment, the tightening and stabilizing mechanism comprises a first installation cavity arranged inside the tailstock, a plurality of sliding blocks are uniformly arranged on the side wall of one end, located inside the first installation cavity, of the telescopic sleeve, a plurality of movable blocks are uniformly arranged on the side wall of the first installation cavity at intervals, a first connecting rod is fixedly arranged on one side of each movable block, one side, away from each movable block, of each first connecting rod is arranged inside the tailstock in a sliding manner, one end, located inside the tailstock, of each first connecting rod is fixedly connected with a second connecting rod, a second installation cavity, a third installation cavity and a fourth installation cavity are arranged inside the tailstock, one end of each second connecting rod is arranged inside the corresponding second installation cavity and fixedly connected with a movable plate arranged inside the corresponding second installation cavity, a support plate is fixedly arranged on the movable plate, and a first rolling groove is formed in the surface, away from the movable plate, of the support plate, a first ball is arranged in the first rolling groove, a push rod is arranged on the first ball, one end of the push rod is arranged in the third installation cavity, a movable cavity is arranged in the third mounting cavity, a locking block is arranged in the movable cavity, one end of the locking block is fixedly provided with a rotating shaft which is rotatably arranged on the inner side wall of the movable cavity, a torsion spring is arranged outside the rotating shaft, a locking groove is arranged on the outer side wall of the telescopic sleeve, one side of the movable plate is fixedly provided with a third connecting rod, one end of the third connecting rod is arranged in the annular cavity in the tailstock, and is fixedly connected with an annular sealing plug arranged in the annular cavity, the fourth mounting cavity is an annular mounting cavity arranged around the outer side of the telescopic sleeve, and an elastic sleeve is arranged in the fourth mounting cavity and is communicated with one side of the annular cavity through a connecting pipe.
In a preferred embodiment, a plurality of holding grooves are uniformly formed in the outer side wall of the hydraulic rod at intervals close to one end close to the telescopic sleeve, one end, far away from the telescopic sleeve, of each holding groove is hinged to a limiting abutting rod, a groove is formed in the side wall, close to the hydraulic rod, of one end of each telescopic sleeve, one end of each limiting abutting rod is arranged in the groove in a sliding mode, a plurality of mounting holes are formed in each holding groove, a second compression spring is arranged inside each mounting hole, one end of each second compression spring is fixedly arranged on each limiting abutting rod, a second rolling groove is formed in one side, far away from the hydraulic rod, of each limiting abutting rod, a second rolling groove is formed in the connecting portion, close to one side of the first mounting cavity, of the tailstock and the hydraulic rod, of the tailstock, a second rolling ball is arranged in the second rolling groove in a sliding mode.
In a preferred embodiment, be provided with the spout on the inside wall of first installation cavity, the sliding block slides and sets up in the spout, be provided with the stopper on the inside wall of first installation cavity, the movable block sets up between sliding block and stopper, and the sliding block slides and sets up more stably when can make sliding block and telescope tube remove in the spout, and sliding block and stopper are provided with four at least, and the stopper can carry on spacingly to the fly leaf.
In a preferred embodiment, a third compression spring is arranged on the outer side of the first connecting rod, one end of the third compression spring is fixedly arranged on the movable block, the other end of the third compression spring is fixedly arranged on the inner side wall of the first mounting cavity, and the third compression spring can enable the first connecting rod to reset.
In a preferred embodiment, the bottom end of the movable plate is uniformly provided with a plurality of third balls at intervals, the supporting plate at the upper end of the movable plate is obliquely arranged, the inclination angle of the supporting plate is 45 degrees, the third balls facilitate the movement of the movable plate in the second mounting cavity, the supporting plate is obliquely arranged, the ejector rod can be lifted by utilizing the difference of the heights of the contact surfaces of the supporting plate and the ejector rod, and the structure is simple.
In a preferred embodiment, the latch segment is the setting of L type, the locking groove matches with the latch segment, the ejector pin sets up the lower extreme at the latch segment, and the latch segment is the setting of L type, can make latch segment and locking groove produce spacing effort in vertical direction for telescopic sleeve is more stable in vertical direction.
In a preferred embodiment, one end of the torsion spring is fixedly arranged on the outer side wall of the locking block, the other end of the torsion spring is fixedly arranged on the inner side wall of the movable cavity, and the torsion spring can automatically actuate the rotating shaft and the locking block to rotate so that the locking block rotates into the movable cavity.
In a preferred embodiment, one side of annular chamber is provided with the gas vent, the one end of gas vent sets up in the outer end of tailstock, just the inside of gas vent is provided with the filter screen, the face of embracing of elastic sleeve and telescopic sleeve's lateral wall contact setting, just the outside of embracing of elastic sleeve is provided with wear-resisting anti-skidding line, and the inside gaseous circulation of annular chamber is made things convenient for to the gas vent, and the elastic sleeve is provided with wear-resisting anti-skidding line with telescopic sleeve's the contact surface of embracing and can make elastic sleeve and telescopic sleeve's contact position friction effect better for telescopic sleeve is better in the horizontal direction stability.
In a preferred embodiment, the depth of holding tank is the same with the thickness of spacing pole of supporting, spacing pole of supporting is accomodate the holding tank back and is flushed with the lateral wall of hydraulic stem, and spacing pole of supporting is accomodate and can be made the hydraulic stem comparatively stable when the tailstock inside wall removes in the holding tank, prevents that hydraulic stem and tailstock inside wall junction from producing the space and leading to the hydraulic stem flexible time rocking.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has the advantages that through the arrangement of the tightening stabilizing mechanism, the hydraulic rod can push the movable block to move when driving the telescopic sleeve and the thimble to move, the movable block can drive the first connecting rod, the second connecting rod and the movable plate to move when moving, the movable plate is obliquely arranged, the support surface of the ejector rod is changed when moving, the ejector rod moves towards the locking block, so that the locking block is ejected out of the movable cavity, when the locking block is ejected, the locking groove on the outer side wall of the telescopic sleeve just moves to the locking block, so that the locking block is clamped in the locking groove, the locking block is arranged in an L shape, one end of the locking block can apply axial acting force to the telescopic sleeve after being clamped in the locking groove, the axial deformation of the tailstock centre caused by heating in the cutting process can be prevented, the tailstock centre and the telescopic sleeve can slightly move in the axial direction, and the precision of a workpiece during processing can be ensured, when the movable plate moves, the annular sealing plug in the annular cavity can be driven to move through the third connecting rod, the hydraulic oil in the annular cavity can be pushed into the elastic sleeve by the annular sealing plug, and the elastic sleeve expands to be popped out from the fourth mounting cavity, so that the elastic sleeve tightly surrounds the outer side wall of the telescopic sleeve, the telescopic sleeve can be stabilized in the horizontal direction, and the telescopic sleeve is prevented from moving in the horizontal direction when a tip tightly pushes a workpiece;
2. according to the invention, the outer side wall of the hydraulic rod is provided with the accommodating groove, the limiting abutting rod, the second compression spring, the second rolling groove and the second ball, the hydraulic rod can enter the first mounting cavity when being extended, when the top point at the front end of the telescopic sleeve abuts against the workpiece, the accommodating groove on the hydraulic rod completely enters the first mounting cavity, and the limiting abutting rod in the accommodating groove pops out of the accommodating groove under the action of the second compression spring after losing the limiting effect of the inner side wall of the tailstock, so that one end of the limiting abutting rod slides towards the edge part along the groove at one side of the telescopic sleeve, when the workpiece is processed, the limiting abutting rod abuts against one side of the telescopic sleeve, the middle position of the telescopic sleeve can be prevented from being limited only by the hydraulic rod, the telescopic sleeve is unstable in the horizontal direction and the vertical direction, and the stability of the top point for tightly abutting against the workpiece can be effectively improved, the telescopic sleeve can be fixed in the axial direction and the horizontal direction through the locking groove, the locking block, the elastic sleeve and the limiting abutting rod, so that the telescopic sleeve in the tailstock can move accurately, the workpiece can be tightly pressed stably, and the machining precision of the workpiece can be improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of the tailstock of the present invention without tightly pushing the workpiece;
FIG. 3 is a schematic structural diagram of the tailstock used for internally pressing a workpiece;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the mounting structure of the locking block of the present invention;
FIG. 6 is a schematic structural view of a support plate of the present invention;
FIG. 7 is a partial schematic view of the hydraulic ram of the present invention;
FIG. 8 is a schematic view of the internal cross-sectional structure of the hydraulic ram of the present invention;
FIG. 9 is an enlarged view of the structure at B in FIG. 2 according to the present invention;
in the figure: 1, machine tool; 2, a tailstock; 3, a hydraulic cylinder; 4, a telescopic sleeve; 5, a hydraulic rod; 6 a first mounting cavity; 7, a sliding block; 8, a movable block; 9 a first connecting rod; 10 a second connecting rod; 11 a second mounting cavity; 12 a third mounting cavity; 13 a fourth mounting cavity; 14 a movable plate; 15 a support plate; 16 a first roll groove; 17 a first ball bearing; 18 ejector rods; 19 a movable cavity; 20, a locking block; 21 a rotating shaft; 22 a torsion spring; 23 locking grooves; 24 a third connecting rod; 25 annular cavities; 26 an annular sealing plug; 27 an elastic sleeve; 28 connecting pipes; 29 accommodating grooves; 30 limiting and abutting rods; 31 grooves; 32 mounting holes; 33 a second compression spring; 34 a second rolling groove; 35 a second ball bearing; 36 chute; 37 a limiting block; 38 a third compression spring; 39 a third ball; 40 exhaust port.
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.
Referring to fig. 1-9, the present invention provides a turning machine with a tailstock capable of moving accurately and being pushed tightly stably, which includes a machine tool 1 and a tailstock 2 fixedly disposed at the upper end of the machine tool 1, wherein a hydraulic cylinder 3 is fixedly disposed at one side of the tailstock 2, a telescopic sleeve 4 is disposed at one side of the tailstock 2, which is far away from the hydraulic cylinder 3, a hydraulic rod 5 on the hydraulic cylinder 3 penetrates through the side wall of the tailstock 2 and is fixedly connected to one end of the telescopic sleeve 4 disposed inside the tailstock 2, and a pushing-tight stabilizing mechanism is disposed inside the tailstock 2.
In a preferred embodiment, the tightening and stabilizing mechanism comprises a first installation cavity 6 arranged inside a tailstock 2, a plurality of sliding blocks 7 are uniformly arranged on the side wall of one end of the telescopic sleeve 4 positioned inside the first installation cavity 6, a plurality of movable blocks 8 are uniformly arranged on the side wall of the first installation cavity 6 at intervals, a first connecting rod 9 is fixedly arranged on one side of each movable block 8, one side of each first connecting rod 9 far away from the corresponding movable block 8 is slidably arranged inside the tailstock 2, one end of each first connecting rod 9 positioned inside the tailstock 2 is fixedly connected with a second connecting rod 10, a second installation cavity 11, a third installation cavity 12 and a fourth installation cavity 13 are arranged inside the tailstock 2, one end of each second connecting rod 10 is arranged inside the second installation cavity 11 and is fixedly connected with a movable plate 14 arranged inside the second installation cavity 11, the movable plate 14 is fixedly provided with a support plate 15, the surface of the support plate 15, which is far away from the movable plate 14, is provided with a first rolling groove 16, a first ball 17 is arranged inside the first rolling groove 16, the first ball 17 is provided with a push rod 18, one end of the push rod 18 is arranged inside the third installation cavity 12, the inside of the third installation cavity 12 is provided with a movable cavity 19, the inside of the movable cavity 19 is provided with a locking block 20, one end of the locking block 20 is fixedly provided with a rotating shaft 21, the rotating shaft 21 is rotatably arranged on the inner side wall of the movable cavity 19, the outer side of the rotating shaft 21 is provided with a torsion spring 22, the outer side wall of the telescopic sleeve 4 is provided with a locking groove 23, one side of the movable plate 14 is fixedly provided with a third connecting rod 24, one end of the third connecting rod 24 is arranged inside an annular cavity 25 inside the tailstock 2 and is fixedly connected with an annular sealing plug 26 arranged inside the annular cavity 25, the fourth installation cavity 13 is an annular installation cavity arranged around the outer side of the telescopic sleeve 4, an elastic sleeve 27 is arranged inside the fourth installation cavity 13, and the elastic sleeve 27 is communicated with one side of the annular cavity 25 through a connecting pipe 28.
In a preferred embodiment, a plurality of receiving grooves 29 are uniformly spaced on the outer side wall of the hydraulic rod 5 near one end of the telescopic sleeve 4, a limiting and resisting rod 30 is hinged at one end of the containing groove 29 far away from the telescopic sleeve 4, a groove 31 is arranged on the side wall of one end of the telescopic sleeve 4 close to the hydraulic rod 5, one end of the limit resisting rod 30 is arranged in the groove 31 in a sliding way, each of the receiving grooves 29 is provided therein with a plurality of mounting holes 32, each of the mounting holes 32 is provided inside with a second compression spring 33, one end of the second compression spring 33 is fixedly arranged on the limiting and abutting rods 30, one side of each limiting and abutting rod 30 far away from the hydraulic rod 5 is provided with a second rolling groove 34, a second ball 35 is embedded into a joint of the tailstock 2 and the hydraulic rod 5 close to one side of the first installation cavity 6, and the second ball 35 is slidably arranged in the second rolling groove 34.
In a preferred embodiment, the inner side wall of the first installation cavity 6 is provided with a sliding groove 36, the sliding block 7 is slidably disposed in the sliding groove 36, the inner side wall of the first installation cavity 6 is provided with a limiting block 37, the movable block 8 is disposed between the sliding block 7 and the limiting block 37, the sliding block 7 is slidably disposed in the sliding groove 36, so that the sliding block 7 and the telescopic sleeve 4 are more stable when moving, the sliding block 7 and the limiting block 37 are at least four, and the limiting block 37 can limit the movable plate 8.
In a preferred embodiment, a third compression spring 38 is disposed on the outer side of the first connecting rod 9, one end of the third compression spring 38 is fixedly disposed on the movable block 8, and the other end of the third compression spring 38 is fixedly disposed on the inner side wall of the first mounting cavity 6, and the third compression spring 38 can reset the first connecting rod 9.
In a preferred embodiment, a plurality of third balls 39 are uniformly arranged at intervals at the bottom end of the movable plate 14, the support plate 15 at the upper end of the movable plate 14 is arranged in an inclined manner, the inclination angle of the support plate 15 is 45 °, the third balls 39 facilitate the movement of the movable plate 14 inside the second mounting cavity 12, the inclined arrangement of the support plate 15 can utilize the difference of the heights of the contact surfaces of the support plate 15 and the ejector rods 18 to enable the ejector rods 18 to lift, and the structure is simple.
In a preferred embodiment, the locking block 20 is in an L-shaped configuration, the locking groove 23 is matched with the locking block 20, the ejector rod 18 is arranged at the lower end of the locking block 20, and the locking block 20 is in an L-shaped configuration, so that the locking block 20 and the locking groove 23 generate a limiting acting force in the vertical direction, and the telescopic sleeve 4 is more stable in the vertical direction.
In a preferred embodiment, one end of the torsion spring 22 is fixedly disposed on the outer side wall of the locking block 20, the other end of the torsion spring 22 is fixedly disposed on the inner side wall of the movable cavity 19, and the torsion spring 22 can automatically actuate the rotating shaft 21 and the locking block 20 to rotate, so that the locking block 20 rotates back into the movable cavity 19.
In a preferred embodiment, one side of annular chamber 25 is provided with gas vent 40, the one end of gas vent 40 sets up in the outer end of tailstock 2, just the inside of gas vent 40 is provided with the filter screen, the face of embracing of elastic sleeve 27 and the lateral wall contact setting of telescope tube 4, just the face outside of embracing of elastic sleeve 27 is provided with wear-resisting anti-skidding line, and gas vent 40 makes things convenient for the inside gaseous circulation of annular chamber 25, and the contact surface of embracing of elastic sleeve 27 and telescope tube 4 is provided with wear-resisting anti-skidding line and can makes the contact position friction effect of elastic sleeve 27 and telescope tube 4 better for telescope tube 4 is stable better in the horizontal direction.
In a preferred embodiment, the depth of the accommodating groove 29 is the same as the thickness of the limiting abutting rod 30, the limiting abutting rod 30 is flush with the outer side wall of the hydraulic rod 5 after being accommodated in the accommodating groove 29, and the limiting abutting rod 30 is accommodated in the accommodating groove 29 so that the hydraulic rod 5 is stable when the inner side wall of the tailstock 2 moves, and the hydraulic rod 5 is prevented from shaking when the hydraulic rod 5 stretches and retracts due to the gap generated at the joint of the inner side wall of the tailstock 2.
The implementation mode is specifically as follows: when the tailstock-type workpiece machining device is used, the tailstock 2 is fixedly arranged on a machine tool 1, a workpiece to be machined is placed between the machine tool 1 and the tailstock 2, the hydraulic cylinder 3 is opened, the hydraulic rod 5 is extended after the hydraulic cylinder 3 is opened, the hydraulic rod 5 pushes the telescopic sleeve 4 to extend out of the tailstock 2, the sliding block 7 moves in the sliding groove 36 when the telescopic sleeve 4 moves, so that the telescopic sleeve 4 is stable when moving, when the telescopic sleeve 4 moves to a certain position, the sliding block 7 is in contact with the movable block 8, the accommodating groove 29 on the outer side wall of the hydraulic rod 5 gradually enters the first installation cavity 6, the sliding block 7 can extrude the movable block 8 when continuing to move along with the telescopic sleeve 4, so that the movable block 8 extrudes the third compression spring 38 to drive the first connecting rod 9 to move, when the first connecting rod 9 moves, the movable plate 14 can be driven by the second connecting rod 10 to move in the second installation cavity 11, the third ball 39 on one side of the movable plate 14 slides in the second mounting cavity 11, the movable plate 14 can drive the support plate 15 to move when moving, the ejector 18 cannot move due to the limiting effect of the side wall of the third mounting cavity 12 when the support plate 15 moves, the first ball 17 at one end of the ejector 18 rolls in the first rolling groove 16, the relative position between the support plate 15 and the ejector 18 changes, the height of the support surface of the support plate 15 to the ejector 18 changes due to the inclined arrangement of the support plate 15, so that the ejector 18 moves to one side of the telescopic sleeve 4, the ejector 18 can contact with the locking block 20, the locking block 20 rotates around the rotating shaft 21 in the movable cavity 19, along with the movement of the support plate 15, the ejector 18 gradually ejects the locking block 20 from the movable cavity 19, when the locking block 20 ejects from the movable cavity 19, the locking groove 23 on the outer side wall of the telescopic sleeve 4 just moves to the locking block 20, the locking block 20 is gradually rotated into the locking groove 23, the telescopic sleeve 4 is clamped by the locking block 20 and the locking groove 23, the telescopic sleeve 4 can be prevented from moving slightly in the axial direction, the stability of the telescopic sleeve 4 and the tip in the vertical direction is ensured, the movable plate 14 can drive the annular sealing plug 26 inside the annular cavity 25 to move when moving, the annular sealing plug 26 can push hydraulic oil inside the annular cavity 25 into the elastic sleeve 27 through the connecting pipe 28, the elastic sleeve 27 expands to pop out the fourth mounting cavity 13 along with the gradual increase of the hydraulic oil inside the elastic sleeve 27, so that the surrounding surface of the elastic sleeve 27 is in contact with the outer side wall of the telescopic sleeve 4, the telescopic sleeve 4 is surrounded by the elastic sleeve 27, the surrounding surface of the elastic sleeve 27 is provided with wear-resistant anti-slip threads, and the telescopic sleeve 4 is fixed by using the friction force between the elastic sleeve 27 and the telescopic sleeve 4, the telescopic sleeve 4 is prevented from moving in the horizontal direction, when the hydraulic rod 5 extends, the accommodating groove 29 on the outer side wall of the hydraulic rod 5 gradually enters the first mounting cavity 6 from the side wall of the tailstock 2, when the tip at the front end of the telescopic sleeve 4 tightly pushes against a workpiece, the accommodating groove 29 completely enters the first mounting cavity 6, after the limiting abutting rod 30 accommodated in the accommodating groove 29 loses the limiting effect of the side wall of the tailstock 2, the second compression spring 33 inside the hydraulic rod 5 drives the limiting abutting rod 30 to pop out from the accommodating groove 29, so that one end of the limiting abutting rod 30 outwards rotates along the groove 31, one end of the limiting abutting rod 30 abuts against the outer side wall of the telescopic sleeve 4, the limiting abutting rod 30 can limit the telescopic sleeve 4 when the workpiece is processed, the telescopic sleeve 4 is prevented from moving in the horizontal direction, and the stability of the telescopic sleeve 4 and the tip when the tip tightly pushes against the workpiece is ensured, the machining precision of the workpiece is improved;
after the workpiece is machined, the hydraulic cylinder 3 is opened again, so that the hydraulic rod 5 drives the telescopic sleeve 4 to contract into the tailstock 2, when the telescopic sleeve 4 stretches, the accommodating groove 29 on the outer side wall of the hydraulic rod 5 gradually enters the side wall of the tailstock 2, the side wall of the tailstock 2 can extrude the limiting resisting rod 30, so that the limiting resisting rod 30 extrudes the second compression spring 33 to approach the accommodating groove 29, the sliding block 7 is far away from the movable block 8, the movable block 8 loses the extrusion effect of the sliding block 7 and then reversely moves under the effect of the third compression spring 38, so that the first connecting rod 9 and the second connecting rod 10 drive the movable plate 14 to reversely move, when the movable plate 14 reversely moves, the supporting surfaces of the supporting plate 15 and the ejector rod 18 can be reduced, so that the ejector rod 18 loses the driving force for the locking block 20, and after the locking block 20 loses the driving reverse rotation of the locking block 20 under the effect of the torsion spring 22, the locking block 20 is enabled to rotate to the movable cavity 19 from the locking groove 23, the locking groove 23 on the outer side wall of the telescopic sleeve 4 is gradually far away from the movable cavity 19, the movable plate 14 can drive the annular sealing plug 26 in the annular cavity 25 to move reversely through the third connecting rod 24 when moving, the hydraulic oil in the elastic sleeve 27 can flow back to the annular cavity 25 again when moving reversely through the annular sealing plug 26, the hydraulic oil in the elastic sleeve 27 is reduced, the elastic sleeve 27 contracts under the reverse action of the outer side wall of the telescopic sleeve 4, so that the encircling acting force of the elastic sleeve 27 on the telescopic sleeve 4 is reduced, the telescopic sleeve 4 and the tip contract into the tailstock 2, when the hydraulic rod 5 shortens to a certain degree, the limit resisting rod 30 is completely accommodated in the accommodating groove 29, when the limit resisting rod 30 is unfolded or accommodated, the second ball 35 installed in the side wall of the tailstock 2 rolls in the second rolling groove 34 on the outer side wall of the limit resisting rod 30, so that the movement of the limit butting lever 30 is limited when the hydraulic lever 5 moves.
The working principle of the invention is as follows:
the invention has the advantages that through the arrangement of the jacking stabilizing mechanism, the hydraulic rod 5 can drive the telescopic sleeve 4 and the thimble to move so as to push the movable block 8 to move, the movable block 8 can drive the first connecting rod 9, the second connecting rod 10 and the movable plate 14 to move when moving, the movable plate 14 is obliquely arranged, the supporting surface of the ejector rod 18 is changed when the movable plate 14 moves, the ejector rod 18 moves towards the locking block 20, the locking block 20 is ejected from the movable cavity 19, when the locking block 20 is ejected, the locking groove 23 on the outer side wall of the telescopic sleeve 4 just moves to the locking block 20, the locking block 20 is clamped in the locking groove 23, the locking block 20 is in an L-shaped arrangement, one end of the locking block 20 is clamped in the locking groove 23 and can apply axial tailstock acting force to the telescopic sleeve 4, the tailstock centre can be prevented from being heated and axially deformed in the cutting process, and the tailstock centre and the telescopic sleeve 4 can be slightly moved in the axial direction, therefore, the precision of a workpiece during processing is ensured, when the movable plate 14 moves, the annular sealing plug 26 in the annular cavity 25 can be driven to move through the third connecting rod 24, the annular sealing plug 26 can push hydraulic oil in the annular cavity 25 into the elastic sleeve 27, the elastic sleeve 27 expands and pops out from the fourth mounting cavity 13, so that the elastic sleeve 27 tightly encircles the outer side wall of the telescopic sleeve 4, the telescopic sleeve 4 can be stabilized in the horizontal direction, the telescopic sleeve 4 is prevented from moving in the horizontal direction when a tip tightly pushes the workpiece, when the tip at one end of the telescopic sleeve 4 clamps the workpiece, the limiting abutting rod 30 at the outer side of the hydraulic rod 5 can abut against the outer side wall of the telescopic sleeve 4, and the horizontal acting force of the telescopic sleeve 4 can be stabilized, in the invention, the axial direction and the horizontal direction of the telescopic sleeve 4 are fixed through the locking groove 23, the locking block 20, the elastic sleeve 27 and the limiting abutting rod 30, thereby make the inside telescope tube 4 of tailstock 2 remove accurately, it is better to the tight stability in top of work piece, improve the machining precision of work piece.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a turning lathe with remove accurate and the tight tailstock of stabilizing in top, includes lathe bed and fixed tailstock (2) that sets up in the lathe bed upper end, its characterized in that: one side of tailstock (2) is fixed and is provided with pneumatic cylinder (3), one side that pneumatic cylinder (3) were kept away from to tailstock (2) inside is provided with telescope tube (4), lateral wall that tailstock (2) was passed in hydraulic stem (5) on pneumatic cylinder (3) to fixed connection sets up the one end at tailstock (2) inside telescope tube (4), its characterized in that: a jacking and stabilizing mechanism is arranged inside the tailstock (2);
the jacking and stabilizing mechanism comprises a first installation cavity (6) arranged inside a tailstock (2), a plurality of sliding blocks (7) are uniformly arranged on the side wall of one end, positioned inside the first installation cavity (6), of the telescopic sleeve (4), a plurality of movable blocks (8) are uniformly arranged on the side wall of the first installation cavity (6) at intervals, a first connecting rod (9) is fixedly arranged on one side of each movable block (8), one side, far away from each movable block (8), of each first connecting rod (9) is arranged inside the tailstock (2) in a sliding manner, one end, positioned inside the tailstock (2), of each first connecting rod (9) is fixedly connected with a second connecting rod (10), a second installation cavity (11), a third installation cavity (12) and a fourth installation cavity (13) are arranged inside the tailstock (2), one end of each second connecting rod (10) is arranged inside the corresponding second installation cavity (11), and is fixedly connected with a movable plate (14) arranged inside the second mounting cavity (11), a support plate (15) is fixedly arranged on the movable plate (14), a first rolling groove (16) is arranged on the surface of the support plate (15) far away from the movable plate (14), a first ball (17) is arranged inside the first rolling groove (16), a push rod (18) is arranged on the first ball (17), one end of the push rod (18) is arranged inside the third mounting cavity (12), a movable cavity (19) is arranged inside the third mounting cavity (12), a locking block (20) is arranged inside the movable cavity (19), a rotating shaft (21) is fixedly arranged at one end of the locking block (20), the rotating shaft (21) is rotatably arranged on the inner side wall of the movable cavity (19), a torsion spring (22) is arranged outside the rotating shaft (21), and a locking groove (23) is arranged on the outer side wall of the telescopic sleeve (4), the fixed third connecting rod (24) that is provided with in one side of fly leaf (14), the one end of third connecting rod (24) sets up inside annular chamber (25) of tailstock (2) inside to fixed connection sets up in annular chamber (25) inside annular sealing plug (26), fourth installation cavity (13) are for encircleing the annular installation cavity that sets up in telescopic sleeve (4) outside, the inside of fourth installation cavity (13) is provided with elastic sleeve (27), one side intercommunication through connecting pipe (28) and annular chamber (25) in elastic sleeve (27), backup pad (15) of fly leaf (14) upper end are the slope setting, and latch segment (20) are the setting of L type, locking groove (23) and latch segment (20) phase-match, ejector pin (18) set up the lower extreme at latch segment (20).
2. The turning machine tool with the tailstock capable of moving accurately and being jacked tightly according to claim 1, is characterized in that: the one end interval that is close to telescope tube (4) on the lateral wall of hydraulic stem (5) is even is provided with a plurality of holding tank (29), the inside one end of keeping away from telescope tube (4) of holding tank (29) articulates and is provided with spacing butt pole (30), be provided with recess (31) on the one end lateral wall that is close to hydraulic stem (5) in telescope tube (4), the one end of spacing butt pole (30) slides and sets up in recess (31), every all be provided with a plurality of mounting holes (32) in holding tank (29), every the inside of mounting hole (32) all is provided with second compression spring (33), the one end of second compression spring (33) is fixed to be set up on spacing butt pole (30), every one side that hydraulic stem (5) were kept away from in spacing butt pole (30) all is provided with second roll groove (34), tailstock (2) and the junction embedding that hydraulic stem (5) are close to one side of first mounting cavity (6) are provided with second ball (35) And the second ball (35) is arranged in the second rolling groove (34) in a sliding mode.
3. The turning machine tool with the tailstock capable of moving accurately and being jacked tightly according to claim 2, is characterized in that: be provided with spout (36) on the inside wall of first installation cavity (6), sliding block (7) slide and set up in spout (36), be provided with stopper (37) on the inside wall of first installation cavity (6), movable block (8) set up between sliding block (7) and stopper (37).
4. The turning machine tool with the tailstock capable of moving accurately and being jacked tightly according to claim 3, is characterized in that: the outer side of the first connecting rod (9) is provided with a third pressing spring (38), one end of the third pressing spring (38) is fixedly arranged on the movable block (8), and the other end of the third pressing spring is fixedly arranged on the inner side wall of the first mounting cavity (6).
5. The turning machine tool with the tailstock capable of moving accurately and being jacked tightly according to claim 4, is characterized in that: the bottom of fly leaf (14) interval is even is provided with a plurality of third ball (39), backup pad (15) of fly leaf (14) upper end are the slope setting, the inclination of backup pad (15) is 45.
6. The turning machine tool with the tailstock capable of moving accurately and being jacked tightly according to claim 5, is characterized in that: the locking block (20) is arranged in an L shape, the locking groove (23) is matched with the locking block (20), and the ejector rod (18) is arranged at the lower end of the locking block (20).
7. The turning machine tool with the tailstock capable of moving accurately and being jacked tightly according to claim 6, is characterized in that: one end of the torsion spring (22) is fixedly arranged on the outer side wall of the locking block (20), and the other end of the torsion spring (22) is fixedly arranged on the inner side wall of the movable cavity (19).
8. The turning machine tool with the tailstock capable of moving accurately and being jacked tightly according to claim 7, is characterized in that: one side of annular chamber (25) is provided with gas vent (40), the one end of gas vent (40) sets up in the outer end of tailstock (2), just the inside of gas vent (40) is provided with the filter screen, the lateral wall contact setting of the face of embracing and telescopic sleeve (4) of elastic sleeve (27), just the face outside of embracing of elastic sleeve (27) is provided with wear-resisting anti-skidding line.
9. The turning machine tool with the tailstock capable of moving accurately and being jacked tightly according to claim 8, is characterized in that: the depth of the accommodating groove (29) is the same as the thickness of the limiting abutting rod (30), and the limiting abutting rod (30) is accommodated in the accommodating groove (29) and then is flush with the outer side wall of the hydraulic rod (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032852.9A CN112809029B (en) | 2021-01-12 | 2021-01-12 | Turning lathe with remove accurate and tight tailstock of stabilizing in top |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110032852.9A CN112809029B (en) | 2021-01-12 | 2021-01-12 | Turning lathe with remove accurate and tight tailstock of stabilizing in top |
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| CN112809029A CN112809029A (en) | 2021-05-18 |
| CN112809029B true CN112809029B (en) | 2022-03-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115042278B (en) * | 2022-06-15 | 2023-02-21 | 汨罗市华雅工艺美术品有限公司 | Device is used in processing of table top bearing structure for playing of guqin |
| CN116197420A (en) * | 2023-02-07 | 2023-06-02 | 安阳鑫盛机床股份有限公司 | Tailstock structure of intelligent numerical control machine tool |
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| SU1537382A1 (en) * | 1987-11-06 | 1990-01-23 | Рязанское специальное конструкторское бюро станкостроения | Lathe tailstock |
| CN201012389Y (en) * | 2007-02-14 | 2008-01-30 | 盛焕君 | Accurate tailstock of lathe |
| CN201572924U (en) * | 2009-12-15 | 2010-09-08 | 柳州市数控机床研究所 | Numerically controlled lathe hydraulic tailstock structure |
| DE202013105263U1 (en) * | 2013-11-20 | 2013-12-02 | Zhang Kang | Lathe head with automatic lock function |
| CN108687206A (en) * | 2018-04-26 | 2018-10-23 | 盐城工业职业技术学院 | A kind of spinning aircraft tail shelf |
| CN209223205U (en) * | 2018-12-28 | 2019-08-09 | 威海市威力迈泊工具有限公司 | A kind of tail stock is top to hold out against locking device automatically |
| CN211897116U (en) * | 2019-12-29 | 2020-11-10 | 天津危伏智能装备有限公司 | Multifunctional tailstock for cladding machine tool |
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2021
- 2021-01-12 CN CN202110032852.9A patent/CN112809029B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1537382A1 (en) * | 1987-11-06 | 1990-01-23 | Рязанское специальное конструкторское бюро станкостроения | Lathe tailstock |
| CN201012389Y (en) * | 2007-02-14 | 2008-01-30 | 盛焕君 | Accurate tailstock of lathe |
| CN201572924U (en) * | 2009-12-15 | 2010-09-08 | 柳州市数控机床研究所 | Numerically controlled lathe hydraulic tailstock structure |
| DE202013105263U1 (en) * | 2013-11-20 | 2013-12-02 | Zhang Kang | Lathe head with automatic lock function |
| CN108687206A (en) * | 2018-04-26 | 2018-10-23 | 盐城工业职业技术学院 | A kind of spinning aircraft tail shelf |
| CN209223205U (en) * | 2018-12-28 | 2019-08-09 | 威海市威力迈泊工具有限公司 | A kind of tail stock is top to hold out against locking device automatically |
| CN211897116U (en) * | 2019-12-29 | 2020-11-10 | 天津危伏智能装备有限公司 | Multifunctional tailstock for cladding machine tool |
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|---|---|
| CN112809029A (en) | 2021-05-18 |
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