CN209532120U - A kind of direct-connected main shaft - Google Patents
A kind of direct-connected main shaft Download PDFInfo
- Publication number
- CN209532120U CN209532120U CN201821887736.5U CN201821887736U CN209532120U CN 209532120 U CN209532120 U CN 209532120U CN 201821887736 U CN201821887736 U CN 201821887736U CN 209532120 U CN209532120 U CN 209532120U
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- China
- Prior art keywords
- mandrel
- knife
- forging
- locking nut
- broaching tool
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Abstract
The utility model discloses a kind of direct-connected main shafts, including sleeve, mandrel, broaching tool bar, waterproof ring, front cover, front axle pressure cap, water jacket, front split ring, floating left-hand thread part, floating left-hand thread locking nut, ring of forging a knife, pin of forging a knife, hydraulic cylinder, shaft coupling, broaching tool clamping jaw, disc spring, locking nut, bearing to form.The utility model hydraulic cylinder piston travels forward, and pushes ring of forging a knife, ring of forging a knife pushes pin of forging a knife, and then compresses butterfly spring, the cylinder piston of forging a knife pushes broaching tool bar, and broaching tool bar deforms disc spring, generates broach force, broach force makes broaching tool clamping jaw hold knife handle, and knife handle loads onto cutter, completes exchanging knives process.Safety, speed is fast, high-efficient, when reducing tool changing, damage of the cylinder thrust to bearing.
Description
Technical field
The utility model relates to a kind of main shafts, and in particular to a kind of direct-connected main shaft.
Background technique
The main shaft of machining center is one of the core of entire lathe, can be carried out to workpiece after mixing motor and transmission device
Milling various processes, the precision of main shaft such as boring, bores, attacks and often determines the machining accuracy of workpiece.Spindle drive mode uses at present
Belt transmission, revolving speed is slow, and processing efficiency and precision be not high.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of direct-connected main shafts, safety, and speed is fast, high-efficient.
In order to solve the above technical problems, the utility model adopts the following technical scheme: a kind of direct-connected main shaft, including waterproof
Ring, nozzle, front cover, front axle pressure cap, sleeve, broaching tool clamping jaw, mandrel, broaching tool bar, preceding disk spacer ring, butterfly elastic slice, angular contact
Bearing, locking nut, spring capping, floating left-hand thread locking nut, hydraulic cylinder, ring of forging a knife, pin of forging a knife, pin connection of forging a knife part,
Shaft coupling, rear end pull rod, disc spring pressing lid, oil cylinder seat, compressed spring and water jacket；
It is provided with outside the mandrel and the front cover of mandrel rotation connection, front axle pressure cap, sleeve, spring capping, hydraulic
Oil cylinder and oil cylinder seat；The sleeve is rotatablely connected by angular contact bearing and the mandrel；
The front section of the sleeve is arranged water jacket；The front end of sleeve is provided with angular contact bearings and carries out axially position
Bearing gland；Front cover is arranged in the front end of bearing gland, installs nozzle on front cover；Waterproof ring, waterproof ring is arranged in the front end of front cover
It is fixed on mandrel end；
The locking nut that angular contact bearings carry out axially position is provided on mandrel；Floating left-hand thread is additionally provided on mandrel
Locking nut；Locking nut and floating left-hand thread locking nut are spirally connected with mandrel；Between the front end and sleeve of floating left-hand thread locking nut
There are the gaps moved axially for floating left-hand thread locking nut；Spring capping is arranged in the rear end of sleeve；Spring capping is set in floating
On dynamic left-hand thread locking nut, the rear end of spring capping resists the shaft shoulder of floating left-hand thread locking nut；It is provided in spring capping logical
Hole and screw hole, spring capping are fixedly connected with oil cylinder seat, and spring capping passes through compressed spring and hexagon socket cap head screw and set
Cylinder connection；Hydraulic cylinder is fixed on oil cylinder seat；
Broaching tool bar, rear end pull rod and butterfly elastic slice are provided in the centre bore of mandrel；Butterfly elastic slice covers on broaching tool bar, leads to
It crosses the preceding disk spacer ring for being separately positioned on butterfly elastic slice front-end and back-end and disc spring pressing lid is limited；The front end of broaching tool bar is set
There is broaching tool clamping jaw, promptly blind rivet tenses cutter fixed in the taper hole of mandrel；
The broaching tool bar and the rear end pull rod are located at the two sides of mandrel long hole, and pin of forging a knife passes through the length of mandrel
Hole is connect with ring of forging a knife, and ring of forging a knife is located at the front end of the piston of hydraulic cylinder；It forges a knife pin, pin connection of forging a knife part and disc spring pressing lid
Three is fixedly connected；Pin connection of forging a knife part is fixedly connected with rear end pull rod；
The tail end of the mandrel is connected to motor by shaft coupling.
Further, end key is set on the front end face of the mandrel.
Further, the tail end of the hydraulic cylinder piston is provided with rear cover inductance loop.
Further, it is arranged with two butterfly elastic slices outside the broaching tool bar, intermediate disk is set between two butterfly elastic slices
Spacer ring.
Further, drainage hole is provided on the gland；Internal screw thread is arranged in the end of drainage hole.
Further, the mandrel is set by two groups of front and back angular contact bearing and sleeve connection, two groups of angular contact bearings
Set in centre every with outside centre every；Between every group in adjacent angular contact bearing setting every with outside every.
The utility model has the beneficial effects that the utility model is safe, speed is fast, high-efficient；When reducing tool changing, cylinder thrust
Damage to bearing.
Detailed description of the invention
In order to more clearly illustrate the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is simply introduced, it should be apparent that, the accompanying drawings in the following description is only some realities recorded in the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic diagram of drainage hole.
Fig. 3 is the K direction view in Fig. 1.
Fig. 4 is that air curtain protects system schematic.
Specific embodiment
The technical solution of the utility model will be clearly and completely described by specific embodiment below.
As shown in Figure 1, being a kind of direct-connected main shaft of the utility model, including waterproof ring 3, nozzle 4, front cover 5, front axle pressure-bearing
Lid 6, it is preceding every 8, block 10, sleeve 11, internal screw thread broaching tool clamping jaw 12, it is intermediate outer every 15, it is intermediate in every 16, mandrel 17, broaching tool bar
18, preceding disk spacer ring 19, butterfly elastic slice 20, angular contact bearing 21, outside every 22, it is interior every 23, after every 24, intermediate disk spacer ring 25,
Locking nut 26, spring capping 27, floating left-hand thread locking nut 28, hydraulic cylinder 31, ring 33 of forging a knife, pin 34 of forging a knife, pin of forging a knife
Connector 35, rear cover inductance loop 37, motor connecting rod 38, shaft coupling 39, rear end pull rod 40, disc spring pressing lid 48, oil cylinder seat 49,
Compressed spring 51 and water jacket 53.
The periphery of the mandrel 17 of the utility model, set gradually from front to back waterproof ring 3, front cover 5, rear cover 6, sleeve 11,
Spring capping 27, floating left-hand thread locking nut 28, oil cylinder seat 49 and hydraulic cylinder 31.Sleeve 11 and mandrel 17 pass through angular contact axis
21 connections are held, the front-end and back-end of sleeve 11 are provided with angular contact bearing 21, are arranged between two angular contact bearings 21 intermediate
It is interior every 16 and intermediate outer every 15, it is intermediate in every 16 sets on mandrel 17, it is intermediate it is outer every 15 sets in centre on 16.Front corner connection
It is preceding to be against on the shaft shoulder of mandrel 17 every 8 every 8 before the front end setting of contact bearing 21.After the rear end setting of rear portion angular contact bearing 21
Every 24, after every 24 rear portion, locking nut 26 is set, locking nut 26 is spirally connected with mandrel, rotates in sleeve 11.Angular contact axis
It holds 21 and axially position is carried out by gland 6 and locking nut 26.Every 23 and outside every 22 in being arranged between rear portion angular contact bearing 21.
In among the utility model every 16 and it is intermediate it is outer every 15, it is interior every 23 and outside every 22 effect be to be uniformly distributed bearing, in centre
Every with interior every squeezing bearing inner race, it is intermediate outer every with outside every squeezing bearing outer ring.
Mandrel 17 can be rotated relative to 11 front cover 5 of sleeve and rear cover 6.
Mandrel 17 is arranged in the front end of sleeve 11 and is provided with gland 5 and front cover 6.Gland 5 and front cover 6 are connected by screw to.
Nozzle 4 is installed, nozzle 4 is sprayed water cutting fluid, cooling down workpiece and cutter to workpiece and cutter on gland 5.
Drainage hole is provided on the gland；The end of drainage hole is arranged internal screw thread, and when horizontal installation, drainage hole is beaten
It opens, when vertical installation, drainage hole is blocked.
Waterproof ring 3 is also arranged in the front end of front cover 5 on the mandrel 17 of the utility model.The front end face of main shaft is in centre bore
Periphery pass through screw installation end key 2.The front of sleeve 11 is arranged with water jacket 53, and block 10 is arranged between water jacket 53 and sleeve 11
And O-ring.
Mandrel 17 is provided with floating left-hand thread locking nut 28,28 He of floating left-hand thread locking nut in the rear end of locking nut 26
There are the spaces moved axially for floating left-hand thread locking nut 28 between sleeve 11.Floating left-hand thread locking nut 28 and mandrel spiral shell
It connects, spring capping 27 is arranged in 28 periphery of floating left-hand thread locking nut, and the rear end of spring capping 27 is also against floating left-hand thread locking screw
On the shaft shoulder of mother 28, spring capping 27 is located at the rear portion of sleeve 11, and spring capping 27 is evenly distributed through-hole and threaded hole.Spring
Oil cylinder seat 49 is arranged in the rear end of gland 27, and the periphery of sleeve 11 and mandrel is arranged in oil cylinder seat 49；Spring capping 27 and oil cylinder seat
49 are bolted.Spring capping 27 and sleeve 11 are connected by screw and compressed spring 51, and compressed spring 51 is set in spiral shell
It nails on.Hydraulic cylinder 31 is mounted on oil cylinder seat 49.Mandrel 17 is passed through from the center of hydraulic cylinder 49.
The utility model is made up of setting spring capping 27, floating left-hand thread locking nut 28 and compressed spring 51 and floats instead
Fastener, oil cylinder pushing are forged a knife ring, when tool changing, are reduced the impact force to bearing, are prevented bearing service life from shortening, prevent mandrel axis
To play, axial strength is improved.
Broaching tool bar 18 is provided in the centre bore of the mandrel 17 of the utility model.The front end of broaching tool bar 18 is equipped with broach holder
Pawl 12 can firmly grasp blind rivet cutter tension is fixed in the taper hole of mandrel 17.Butterfly spring 20 there are two suits on broaching tool bar 18,
Disk spacer ring 19 before the front end of butterfly spring 20 is arranged, the front end face of preceding disk spacer ring 19 is against on the shaft shoulder in mandrel, broaching tool
Bar 18 is also equipped with the shaft shoulder in the front end of preceding disk spacer ring 19.Intermediate disk spacer ring 25 is provided between two butterfly springs 20.
The rear end of broaching tool bar 18 is provided with disc spring pressing lid 48, and the tail end of broaching tool bar 18 is located in the slot of disc spring pressing lid 48, slot
External ring set is located at the rear end of butterfly spring 20, for pushing butterfly spring 20.Rear end is arranged in the rear end of disc spring pressing lid 48
Pull rod 40；The front end of rear end pull rod 40 is located in the slot of 48 other side of disc spring pressing lid, is arranged pin of forging a knife on rear end pull rod 40
It 34 and forges a knife pin connection part 35；Pin connection of forging a knife part 35 is located inside the centre bore of mandrel；Pin 34 of forging a knife stretches out the portion outside mandrel
Divide and connect by screw with ring 33 of forging a knife, ring 33 of forging a knife is located at 31 piston nose of hydraulic cylinder.The piston rear end of hydraulic cylinder 31
It is additionally provided with rear cover inductance loop 37.Axis tail-hood is arranged in the rear end of hydraulic cylinder 31.The part that pin 34 of forging a knife is located in mandrel passes through
Screw with forge a knife pin connection part 35 and disc spring pressing lid 48 is connect.Pin connection of forging a knife part 35 is fixed by screw and rear end pull rod 40
Connection.
The tail end of mandrel 17 connects motor by shaft coupling 39.Grooved hole, motor connection is arranged in the rear end of rear end pull rod 40
Bar protrudes into slot, and the end and slot junction of motor connecting rod are provided with O-ring.
The disc spring of the utility model pre-tightens distance 3.7mm, broach force 700Kg, broach travel 2mm；Power of forging a knife 1300Kg, beats
Knife stroke 9mm；Pull rod 40 periphery in rear end is set to several annular grooves, and for adding lubricating grease, when assembly pays attention to adding lubricating grease.
It is empty that the utility model in front cover 5, front axle pressure cap 6 and sleeve is provided with air curtain protection, as shown in Figure 4 in a, b,
C, shown in d.Extraneous compressed air enters main shaft air curtain protection hole by tracheae, is then blown out by front end air curtain aperture, in order to
Prevent the foreign matters such as iron filings from entering inside main shaft.
The utility model is provided with amendment threaded hole in the rear end of mandrel.
Working principle of the utility model is: the utility model presses tool changing button, hydraulic cylinder piston travels forward, and pushes
It forges a knife ring, ring of forging a knife promotion is forged a knife pin, and then compresses butterfly spring, and the cylinder piston of forging a knife pushes broaching tool bar, and broaching tool bar becomes disc spring
Shape generates broach force, and broach force makes broaching tool clamping jaw hold knife handle, and knife handle loads onto cutter, completes exchanging knives process, the utility model peace
Entirely, speed is fast, high-efficient.Floating left-hand thread the purpose is to reduce when tool changing, damage of the cylinder thrust to bearing.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical new to this
The conception and scope of type is defined, without departing from the design concept of the present utility model, ordinary skill skill in this field
Art personnel should all fall into the protection scope of the utility model to all variations and modifications that the technical solution of the utility model is made,
The claimed technology contents of the utility model, are all documented in technical requirements book.
Claims (6)
1. a kind of direct-connected main shaft, it is characterised in that: including waterproof ring (3), nozzle (4), front cover (5), front axle pressure cap (6), set
Cylinder (11), broaching tool clamping jaw (12), mandrel (17), broaching tool bar (18), preceding disk spacer ring (19), butterfly elastic slice (20), angular contact axis
Hold (21), locking nut (26), spring capping (27), floating left-hand thread locking nut (28), hydraulic cylinder (31), ring of forging a knife
(33), it forges a knife pin (34), pin connection of forging a knife part (35), shaft coupling (39), rear end pull rod (40), disc spring pressing lid (48), oil cylinder
Seat (49), compressed spring (51) and water jacket (53)；
Be provided with outside the mandrel (17) with the front cover (5) of mandrel (17) rotation connection, front axle pressure cap (6), sleeve (11),
Spring capping (27), hydraulic cylinder (31) and oil cylinder seat (49)；The sleeve (11) passes through angular contact bearing (21) and described
Mandrel (17) rotation connection；
The front section of the sleeve (11) covers water jacket (53)；The front end of sleeve (11) be provided with angular contact bearings (21) into
The bearing gland (6) of row axially position；Front cover (5) are arranged in the front end of bearing gland, install nozzle (4) on front cover (5)；Front cover
(5) waterproof ring (3) are arranged in front end, and waterproof ring is fixed on mandrel (17) end；
The locking nut (26) that angular contact bearings (21) carry out axially position is provided on mandrel (17)；Mandrel is also set on (17)
It is equipped with floating left-hand thread locking nut (28)；Locking nut (26) and floating left-hand thread locking nut (28) are spirally connected with mandrel (17)；It is floating
There are the gaps moved axially for floating left-hand thread locking nut (28) between the front end and sleeve (11) of dynamic left-hand thread locking nut (28)；
Spring capping (27) are arranged in the rear end of sleeve (11)；Spring capping (27) is set on floating left-hand thread locking nut (28), spring
The rear end of gland (27) resists the shaft shoulder of floating left-hand thread locking nut (28)；It is provided with through-hole and screw hole in spring capping (27),
Spring capping (27) is fixedly connected with oil cylinder seat (49), and spring capping (27) passes through compressed spring (51) and interior hexagonal cylindrical head spiral shell
Nail (50) is connect with sleeve (11)；Hydraulic cylinder (31) is fixed on oil cylinder seat (49)；
Broaching tool bar (18), rear end pull rod (40) and butterfly elastic slice (20) are provided in the centre bore of mandrel (17)；Butterfly elastic slice
(20) it covers on broaching tool bar (18), by the preceding disk spacer ring (19) and the dish that are separately positioned on butterfly elastic slice (20) front-end and back-end
Spring pressing lid (48) is limited；The front end of broaching tool bar (18) is equipped with broaching tool clamping jaw (12), and promptly blind rivet tenses cutter
It is fixed in the taper hole of mandrel (17)；
The broaching tool bar (18) and the rear end pull rod (40) are located at the two sides of mandrel long hole, and pin of forging a knife (34) passes through
The long hole of mandrel is connect with ring of forging a knife (33), and ring of forging a knife (33) is located at the front end of the piston of hydraulic cylinder (31)；Forge a knife pin (34),
Pin connection of forging a knife part (35) is fixedly connected with disc spring pressing lid (48) three；Pin connection of forging a knife part (35) and rear end pull rod (40) are solid
Fixed connection；
The tail end of the mandrel (17) is connected to motor by shaft coupling.
2. a kind of direct-connected main shaft according to claim 1, it is characterised in that: end key is arranged on the front end face of the mandrel
(2).
3. a kind of direct-connected main shaft according to claim 1, it is characterised in that: the tail end of hydraulic cylinder (31) piston is set
It is equipped with rear cover inductance loop (37).
4. a kind of direct-connected main shaft according to claim 1, it is characterised in that: be arranged with two butterflies outside the broaching tool bar (18)
Intermediate disk spacer ring (25) is arranged between two butterfly elastic slices (20) for shape elastic slice (20).
5. a kind of direct-connected main shaft according to claim 1, it is characterised in that: be provided with drainage hole on the gland (6)；
Internal screw thread is arranged in the end of drainage hole.
6. a kind of direct-connected main shaft according to claim 1, it is characterised in that: the mandrel passes through two groups of front and back angular contact
Bearing (21) is connect with sleeve (11), and two groups of angular contact bearing (21) settings are intermediate interior every (16) and intermediate outer every (15)；Every group
Between in adjacent angular contact bearing (21) setting every (23) and outside every (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887736.5U CN209532120U (en) | 2018-11-16 | 2018-11-16 | A kind of direct-connected main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887736.5U CN209532120U (en) | 2018-11-16 | 2018-11-16 | A kind of direct-connected main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209532120U true CN209532120U (en) | 2019-10-25 |
Family
ID=68261628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821887736.5U Active CN209532120U (en) | 2018-11-16 | 2018-11-16 | A kind of direct-connected main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209532120U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842224A (en) * | 2019-11-27 | 2020-02-28 | 江苏思维福特机械科技股份有限公司 | High-speed large-torque direct-connected spindle structure |
| CN114713863A (en) * | 2022-06-07 | 2022-07-08 | 冈田精机(常州)有限公司 | Self-locking main shaft of internal and external linkage sleeve |
| CN117415343A (en) * | 2023-12-06 | 2024-01-19 | 无锡阳光精机股份有限公司 | Built-in main shaft of motor |
| CN117415343B (en) * | 2023-12-06 | 2024-04-26 | 无锡阳光精机股份有限公司 | Built-in main shaft of motor |
-
2018
- 2018-11-16 CN CN201821887736.5U patent/CN209532120U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842224A (en) * | 2019-11-27 | 2020-02-28 | 江苏思维福特机械科技股份有限公司 | High-speed large-torque direct-connected spindle structure |
| CN114713863A (en) * | 2022-06-07 | 2022-07-08 | 冈田精机(常州)有限公司 | Self-locking main shaft of internal and external linkage sleeve |
| CN117415343A (en) * | 2023-12-06 | 2024-01-19 | 无锡阳光精机股份有限公司 | Built-in main shaft of motor |
| CN117415343B (en) * | 2023-12-06 | 2024-04-26 | 无锡阳光精机股份有限公司 | Built-in main shaft of motor |
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