CN115635349A - Lathe main shaft power head lock sword jar structure - Google Patents
Lathe main shaft power head lock sword jar structure Download PDFInfo
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- CN115635349A CN115635349A CN202211356638.XA CN202211356638A CN115635349A CN 115635349 A CN115635349 A CN 115635349A CN 202211356638 A CN202211356638 A CN 202211356638A CN 115635349 A CN115635349 A CN 115635349A
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- cylinder body
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- thrust screw
- power head
- wedge block
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Abstract
The invention discloses a tool locking cylinder structure of a machine tool spindle power head, which comprises: the piston assembly is arranged in the cylinder body; the boosting assembly is movably arranged in the cylinder body and is matched with the piston assembly; one end of the main shaft is inserted into the cylinder body and is arranged coaxially with the cylinder body, a thrust screw rod, one end of the thrust screw rod penetrates into the cylinder body and penetrates through the boosting assembly, and the other end of the thrust screw rod penetrates into the main shaft; the elastic component is sleeved on the thrust screw rod and positioned in the main shaft, and belongs to the elastic component for providing elasticity; the pull rod penetrates into the main shaft and is coaxially connected with the thrust screw; the boosting assembly comprises a boosting inclined wedge block and an inclined wedge block shaft sleeve which are sleeved on the thrust screw rod, one end of the inclined wedge block shaft sleeve is abutted with the elastic assembly, and the other end of the inclined wedge block shaft sleeve is abutted with the boosting inclined wedge block. The broach has the advantages of large broach force, no damage to the main shaft structure, wide application range and convenient maintenance.
Description
Technical Field
The invention relates to the field of machine tools, in particular to a tool locking cylinder structure of a power head of a machine tool spindle.
Background
In the field of machine tools, in order to adapt to one-time machining of more complex parts, the quick replacement of a machine tool spindle cutter is a standard for measuring the machining capacity of the machine tool, and in the machining process, due to the requirements of high rotating speed, large cutting force and the like, higher challenges are also provided for the requirement of the tension of a tool holder.
Therefore, in order to solve the problems of the current state and actual faces of the industry, a tool locking cylinder for a power head of a machine tool spindle needs to be developed, wherein the tool locking cylinder can solve the problems of the industry.
Disclosure of Invention
The invention provides a tool locking cylinder structure of a power head of a machine tool spindle, which can avoid the defects in the prior art, improve the force of a broach and avoid the damage of the spindle.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a lathe main shaft power head lock sword jar structure, includes:
the piston assembly is arranged in the cylinder body;
the boosting assembly is movably arranged in the cylinder body and is matched with the piston assembly;
one end of the main shaft is inserted into the cylinder body and is arranged coaxially with the cylinder body,
one end of the thrust screw rod penetrates into the cylinder body and penetrates through the boosting assembly, and the other end of the thrust screw rod penetrates into the main shaft;
the elastic component is sleeved on the thrust screw rod, is positioned in the main shaft and is used for providing elastic force;
the pull rod penetrates into the main shaft and is coaxially connected with the thrust screw;
the boosting assembly comprises a boosting inclined wedge block and an inclined wedge block shaft sleeve which are sleeved on the thrust screw rod, one end of the inclined wedge block shaft sleeve is abutted with the elastic assembly, the other end of the inclined wedge block shaft sleeve is abutted with the boosting inclined wedge block, and the boosting inclined wedge block is in contact fit with the piston assembly.
In several embodiments, the piston assembly includes a push-down piston, a push piston sleeve and a push-down guide pin, the push-down piston and the push piston sleeve are in contact fit and coaxially arranged in the cylinder body, the push piston sleeve is sleeved on the thrust screw rod, and the push-down guide pin penetrates into the push piston sleeve and is arranged in parallel with the thrust screw rod.
In several embodiments, the pusher piston sleeve is located between the hold-down piston and the power wedge.
In several embodiments, one end of the depressing guide pin is connected to a force-increasing wedge block, which can drive the depressing guide pin to move in the pushing piston sleeve until the depressing guide pin is in abutting contact with the depressing piston.
In several embodiments, the boosting wedges are sleeved with guide ring sleeves, and the guide ring sleeves are in contact with the inner wall of the cylinder body.
In several embodiments, the guide collar is connected to the cylinder body by a collar jackscrew.
In several embodiments, a tail cover assembly is disposed on a side of the cylinder body close to the push-down piston, the tail cover assembly includes an oil inlet nozzle joint, a tail cover and a wear pad, the tail cover is used for sealing the cylinder body, the wear pad is disposed in the tail cover and has a through hole, one end of the oil inlet nozzle joint penetrates into the tail cover and abuts against the wear pad, and the oil inlet nozzle joint is used for inputting a liquid medium into the cylinder body.
In several embodiments, a bearing is disposed between the nipple adapter and the tail end cap, and the tail end cap is rotatable about the nipple adapter via the bearing.
In several embodiments, a piston sleeve guide block is disposed in the cylinder body, and an inner wall of the piston sleeve guide block is in contact fit with an outer wall of the pushing piston sleeve.
In several embodiments, the elastic component comprises a disc spring and a disc spring pressing sheet which are sleeved on the thrust screw rod and abut against each other, and the disc spring pressing sheet abuts against a step surface in the main shaft.
The invention has the following advantages:
1: the lightweight design makes the product more miniaturized, and the circular design of whole body accords with aerodynamics more, can adapt to the high-speed rotatory application.
2:360 can realize high-speed application by unlimited rotation, can realize tight attachment under high-speed rotation by adopting a rotary attachment mode,
3: the inclined wedge type design is adopted to realize the multiplication of tension, the tension force of heavy cutting is met, the requirements of different tension occasions are met, the spindle structure is not damaged, and the external stress on a machine tool is not caused.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not to be considered limiting of the scope of the present disclosure.
FIG. 1 is a schematic perspective view showing a part of a lock cylinder structure of a spindle power head of a machine tool in the present embodiment;
FIG. 2 is a schematic view showing the overall planar structure of the lock cylinder structure of the power head of the spindle of the machine tool in the present embodiment;
FIG. 3 schematically illustrates the cross-sectional structure of FIG. 2;
fig. 4 schematically shows a partially enlarged structure of fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Therefore, the detailed description of the embodiments of the present invention provided below in connection with the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of the present invention.
As shown in fig. 1-4, the tool locking cylinder structure of the power head of the machine tool spindle provided in this embodiment is mainly composed of a cylinder body 23, a force increasing component, a spindle 27, a thrust screw 22, an elastic component, a pull rod 28 and a tail cover component, the cylinder body 23 may be a circular cylinder body structure, or may be in other shapes, the front position of the cylinder body is connected with the spindle 27, the thrust screw 22, the elastic component and the pull rod 28 to form a tool pulling structure, the force increasing component is located in the middle position in the cylinder body 23 to form a force increasing structure, and the tail cover component is connected to the tail end position of the cylinder body 23 to form a hydraulic oil pushing structure, thereby realizing the overall functions of pulling and releasing the tool.
Specifically, be provided with piston assembly in cylinder body 23, piston assembly is including pushing down piston 11, promoting piston bush 14 and pushing down uide pin 16, push down piston 11 and the setting of pushing down piston bush 14 contact cooperation and coaxial line in cylinder body 23, set up simultaneously and push down piston sealing washer 12 and push down piston uide ring 13 between pushing down piston 11 and cylinder body 23, for the conventional accessories in the field, realize sealed and guide effect.
Meanwhile, a piston sleeve guide block 15 is arranged in the cylinder body 23, and the inner wall of the piston sleeve guide block 15 is in contact fit with the outer wall of the pushing piston sleeve 14, so that the axial movement straightness of the piston sleeve 14 is guaranteed.
The boosting assembly comprises a boosting inclined wedge block 18 and an inclined wedge block shaft sleeve 21 which are sleeved on a thrust screw 22, one end of the inclined wedge block shaft sleeve 21 is abutted to the elastic assembly, the other end of the inclined wedge block shaft sleeve 21 is abutted to the boosting inclined wedge block 18, the boosting inclined wedge block 18 is in contact fit with the piston assembly, a guide sleeve ring 20 is sleeved on the boosting inclined wedge block 18, the guide sleeve ring 20 is in contact with the inner wall of a cylinder body 23, and the guide sleeve ring 20 is connected with the cylinder body 23 through a sleeve ring top thread 19.
The pushing piston sleeve 14 is positioned between the pushing piston 11 and the boosting inclined wedges 18, one end of the pushing guide pin 16 is connected with the boosting inclined wedges 18, and the boosting inclined wedges 18 can drive the pushing guide pin 16 to move in the pushing piston sleeve 14 until the pushing piston sleeve is abutted and contacted with the pushing piston 11.
One end of a thrust screw 22 penetrates into the cylinder body 23 and penetrates through the boosting assembly, the other end of the thrust screw 22 penetrates into a main shaft 27, one end of the main shaft 27 is inserted into the cylinder body 23 and is arranged coaxially with the cylinder body 23, the push piston sleeve 14 is sleeved on the thrust screw 22, and the downward pressing guide pin 16 penetrates into the push piston sleeve 14 and is arranged parallel to the thrust screw 22.
The corresponding elastic component comprises a disc spring 24 and a disc spring pressing sheet 25 which are sleeved on the thrust screw 22 and are in butt joint, the disc spring pressing sheet 25 is in butt joint with a step surface in the main shaft 27, and the disc spring 24 is in butt joint with the inclined wedge block shaft sleeve 21.
The tail-hood subassembly includes that the oil feed mouth connects 1, tail end lid 3 and wear pad 7, tail end lid 3 is used for sealing cylinder body 23, wear pad 7 sets up in tail end lid 3, and a through-hole that runs through is seted up to its axis position, the oil feed mouth connects 1 one end and penetrates in the tail end lid 3 and with wear pad 7 looks butt, the oil feed mouth connects 1 and is used for inputing liquid medium to cylinder body 23, and the runner in the oil feed mouth connects 1 promptly is linked together with wear pad 7's through-hole.
Simultaneously, in order to realize rotating, be provided with bearing 4 between oil inlet nipple connects 1 and tail end cover 3, tail end cover 3 accessible bearing 4 rotates around oil inlet nipple connects 1, equally can set up a uide bushing 10 on the inner wall of tail end cover 3, and the inner wall of uide bushing 10 cooperates with wear pad 7's outer wall contact, realizes the direction demand.
A spring 8 may be provided on the inner wall of the end cap 3 to abut against one side of the wear plate 7 to provide a cushioning spring force.
When the tool is used, the cylinder body 23 is fixed at the tail end position of the main shaft 27, the tool shank pulling claw is installed in the taper of the tool shank at the front section of the machine tool conventionally, and the tool shank is adjusted to be in a tool shank locking state, because the locking force of the tool shank tensions the thrust screw 22 through the pull rod 28 and is stressed, meanwhile, the elastic force of the disc spring 24 is stressed and is pre-compressed, the disc spring pressing sheet 25 abuts against the inner step of the main shaft 27, the inclined wedge shaft sleeve 21 moves backwards through adjusting the clamping and tensioning position and is matched with the 8 force increasing inclined wedge block to push to form force increasing, the downward pressing guide pin 16 moves backwards and abuts against the downward pressing piston 11, the piston sleeve 14 and the thrust screw 22 are pushed to pull backwards through the force increasing inclined wedge block 18, and strong tensioning on the tool shank is realized, so that the pulling force for pulling the tool shank pulling claw is realized.
When the tool needs to be loosened again, hydraulic oil enters through the oil inlet connector 1 and enters the cylinder body 23 through the through hole in the wear-resisting sheet 7, the pressing piston 11, the pressing piston sealing ring 12 and the pressing piston guide ring 13 are pushed to move forwards and push the pressing guide pin 16 to move, the inclined wedge block shaft sleeve 21 is pushed to move forwards, the boosting inclined wedge block 18 also moves along with the boosting inclined wedge block, the piston sleeve 14 and the thrust screw rod 22 are pushed to move forwards, the tool loosening action can be achieved, the tool shank is loosened, when the tool shank needs to be clamped, the hydraulic valve body is released, hydraulic oil flows out from the rear end, the disc spring 24 resets through the elasticity of the disc spring 24 at the moment, and the tool shank is locked.
The invention has the technical advantages of small volume, low energy consumption, convenient use, long service life, large broach force, no damage to the main shaft structure, no external stress on a machine tool and the like, has better cost advantage, can reduce the overall cost for the industry field while improving the actual difficulty in the machine tool field, can benefit the upstream and downstream industries of the industry machine tool, has a series of advantages of wide application range, convenient maintenance and the like, and has higher economic value and higher social value.
All the recited means herein may be performed in any suitable order. The use of any and all examples, or exemplary language provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.
The present invention describes preferred embodiments, including the best mode known to the inventors for carrying out the invention. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications encompassed within the spirit and scope of the invention as defined by the claims. Moreover, any and all possible variations of the above-described elements are encompassed by the present invention unless otherwise indicated herein or otherwise clearly contradicted by context.
Claims (10)
1. The utility model provides a lathe main shaft power head lock sword jar structure which characterized in that includes:
the piston assembly is arranged in the cylinder body (23);
the boosting assembly is movably arranged in the cylinder body (23) and is matched with the piston assembly; one end of the main shaft (27) is inserted into the cylinder body (23) and is coaxially arranged with the cylinder body (23), the thrust screw (22), one end of the thrust screw (22) penetrates into the cylinder body (23) and penetrates through the force increasing assembly, and the other end of the thrust screw (22) penetrates into the main shaft (27);
the elastic component is sleeved on the thrust screw rod (22), is positioned in the main shaft (27), and is used for providing elastic force;
the pull rod (28) penetrates into the main shaft (27) and is coaxially connected with the thrust screw rod (22); the boosting assembly comprises a boosting inclined wedge block (18) and an inclined wedge block shaft sleeve (21) which are sleeved on the thrust screw rod (22), one end of the inclined wedge block shaft sleeve (21) is abutted with the elastic assembly, the other end of the inclined wedge block shaft sleeve (21) is abutted with the boosting inclined wedge block (18), and the boosting inclined wedge block (18) is in contact fit with the piston assembly.
2. The machine tool spindle power head lock cutter cylinder structure according to claim 1, wherein the piston assembly comprises a pressing piston (11), a pushing piston sleeve (14) and a pressing guide pin (16), the pressing piston (11) and the pushing piston sleeve (14) are in contact fit and coaxially arranged in a cylinder body (23), the pushing piston sleeve (14) is sleeved on the thrust screw rod (22), and the pressing guide pin (16) penetrates into the pushing piston sleeve (14) and is arranged in parallel with the thrust screw rod (22).
3. The machine tool spindle power head lock cylinder arrangement according to claim 2, characterized in that the thrust piston sleeve (14) is located between the hold-down piston (11) and the power-increasing wedges (18).
4. The machine tool spindle power head lock cylinder structure according to claim 3, characterized in that one end of the pressing guide pin (16) is connected with a force-increasing wedge (18), and the force-increasing wedge (18) can drive the pressing guide pin (16) to move in the pushing piston sleeve (14) until the pressing guide pin is in abutting contact with the pressing piston (11).
5. The machine tool spindle power head lock cylinder structure according to claim 4, characterized in that the force-increasing inclined wedge block (18) is sleeved with a guide ring sleeve (20), and the guide ring sleeve (20) is in contact with the inner wall of the cylinder body (23).
6. The machine tool spindle power head lock-cutter cylinder structure according to claim 5, characterized in that the guide collar (20) is connected with the cylinder body (23) through a collar jackscrew (19).
7. The machine tool spindle power head lock cutter cylinder structure according to claim 6, wherein a tail cover assembly is arranged on one side of the cylinder body (23) close to the pressing piston (11), the tail cover assembly comprises an oil inlet nozzle joint (1), a tail end cover (3) and a wear-resisting sheet (7), the tail end cover (3) is used for sealing the cylinder body (23), the wear-resisting sheet (7) is arranged in the tail end cover (3) and has a through hole, one end of the oil inlet nozzle joint (1) penetrates into the tail end cover (3) and abuts against the wear-resisting sheet (7), and the oil inlet nozzle joint (1) is used for inputting liquid media into the cylinder body (23).
8. The machine tool spindle power head lock cylinder structure according to claim 7, characterized in that a bearing (4) is arranged between the oil inlet nozzle joint (1) and the tail end cover (3), and the tail end cover (3) can rotate around the oil inlet nozzle joint (1) through the bearing (4).
9. The machine tool spindle power head lock cutter cylinder structure according to claim 4, wherein a piston sleeve guide block (15) is arranged in the cylinder body (23), and the inner wall of the piston sleeve guide block (15) is in contact fit with the outer wall of the pushing piston sleeve (14).
10. The machine tool spindle power head lock-cutter cylinder structure according to claim 1, wherein the elastic component comprises a disc spring (24) and a disc spring pressing plate (25) which are sleeved on the thrust screw (22) and abut against each other, and the disc spring pressing plate (25) abuts against a step surface in the spindle (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211356638.XA CN115635349A (en) | 2022-11-01 | 2022-11-01 | Lathe main shaft power head lock sword jar structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211356638.XA CN115635349A (en) | 2022-11-01 | 2022-11-01 | Lathe main shaft power head lock sword jar structure |
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| Publication Number | Publication Date |
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| CN115635349A true CN115635349A (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211356638.XA Pending CN115635349A (en) | 2022-11-01 | 2022-11-01 | Lathe main shaft power head lock sword jar structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116060984A (en) * | 2023-03-29 | 2023-05-05 | 湖南中大创远数控装备有限公司 | Tensioning oil cylinder structure, clamp and spiral bevel gear machine tool |
-
2022
- 2022-11-01 CN CN202211356638.XA patent/CN115635349A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116060984A (en) * | 2023-03-29 | 2023-05-05 | 湖南中大创远数控装备有限公司 | Tensioning oil cylinder structure, clamp and spiral bevel gear machine tool |
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