CN222242697U - Exhibition tool bit - Google Patents
Exhibition tool bit Download PDFInfo
- Publication number
- CN222242697U CN222242697U CN202421044741.5U CN202421044741U CN222242697U CN 222242697 U CN222242697 U CN 222242697U CN 202421044741 U CN202421044741 U CN 202421044741U CN 222242697 U CN222242697 U CN 222242697U
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- Prior art keywords
- ball bearing
- thrust ball
- plane thrust
- shaft
- screw rod
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- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000007480 spreading Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Gear Transmission (AREA)
Abstract
The utility model relates to the field of machine tools and discloses a spreading tool bit which comprises a tool head body, a screw rod rotationally connected in the tool head body, a screw rod seat in threaded connection with the screw rod, a sliding disc fixedly connected to the screw rod seat and a tool arranged on the sliding disc, wherein shaft sections are respectively arranged at two ends of the screw rod, a supporting mechanism is arranged on the shaft sections and connected to the tool head body, the supporting mechanism comprises a first plane thrust ball bearing, a second deep groove ball bearing and a second plane thrust ball bearing which are sequentially sleeved on the shaft sections, a locking piece is arranged on the outer side of the second plane thrust ball bearing and connected to the shaft sections, a bearing seat is arranged on the periphery of the second deep groove ball bearing and connected to the tool head body, a transmission assembly is arranged on the tool head body, a power output end of the transmission assembly is connected with one of the shaft sections, and a power input end of the transmission assembly is connected with a driving device. Through the supporting mechanism that sets up, can improve the rigidity of lead screw by a wide margin, avoid in the course of working, the lead screw appears warping and influence the condition of machining precision.
Description
Technical Field
The utility model relates to the field of machine tools, in particular to a cutter head.
Background
The spreading bit is a common cutting tool, and the cutting function is realized by high-speed rotation of a cutter.
The existing cutter of the cutter-unfolding head is usually arranged on a sliding disc, the sliding disc is arranged on a nut of a screw rod through a screw rod seat, the screw rod is rotationally connected to a cutter head body, and a driving device drives the screw rod to rotate so that the sliding disc moves linearly along the axis direction of the screw rod to adjust the stroke of the cutter.
In the cutting process, the acting force received by the cutter is large, the acting force can be transmitted to the screw rod through the sliding disc, and as the two ends of the screw rod are generally rotationally connected with the cutter head body through a single bearing, the screw rod is easy to deform in the processing process, so that the processing precision of the cutter is poor.
Disclosure of utility model
Based on the above-mentioned problems, an object of the present utility model is to provide a display cutter head, so as to solve the above-mentioned problems of the prior art.
The utility model adopts the following technical scheme:
The utility model provides a spreading cutter head which comprises a cutter head body, a screw rod rotationally connected in the cutter head body, a screw rod seat in threaded connection with the screw rod, a sliding disc fixedly connected to the screw rod seat and a cutter arranged on the sliding disc, wherein shaft sections are respectively arranged at two ends of the screw rod, a supporting mechanism is arranged on each shaft section, and the supporting mechanism is connected to the cutter head body;
The supporting mechanism comprises a first plane thrust ball bearing, a deep groove ball bearing and a second plane thrust ball bearing which are sleeved on the shaft section in sequence from inside to outside, wherein the first plane thrust ball bearing is propped against the end face of the screw rod, a locking piece is arranged on the outer side of the second plane thrust ball bearing and connected to the shaft section, and the locking piece is propped against the outer end face of the second plane thrust ball bearing;
The cutter head is characterized in that a transmission assembly is arranged on the cutter head body, the power output end of the transmission assembly is connected with one of the shaft sections, and the power input end of the transmission assembly is connected with a driving device.
Further, the transmission assembly comprises a bevel gear sleeved on one of the shaft sections, the bevel gear is located on the inner side of the first plane thrust ball bearing, two sides of the bevel gear are respectively abutted against the end face of the screw rod and the first plane thrust ball bearing, the bevel gear is in power connection with a spur gear through a duplex gear, the duplex gear and the spur gear are respectively connected to the cutter head body in a rotating mode through a first shaft and a second shaft, and the driving device is in power connection with the second shaft.
Still further, the retaining member is configured as a retaining nut that is threadably coupled to the shaft segment.
Still further, the drive arrangement sets up the unit head, the output shaft of unit head with axle two power connection.
Compared with the prior art, the utility model has the beneficial technical effects that:
Through the supporting mechanism that sets up, can improve the rigidity of lead screw by a wide margin, avoid in the course of working, the lead screw appears warping and influence the condition of machining precision.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a cross-sectional view of the present utility model.
The reference numerals are 1, a cutter head body, 2, a screw rod, 201, a shaft section, 3, a screw rod seat, 4, a sliding disc, 5, a supporting mechanism, 51, a first plane thrust ball bearing, 52, a deep groove ball bearing, 53, a second plane thrust ball bearing, 54, a locking piece, 55, a bearing seat, 6, a transmission assembly, 61, a bevel gear, 62, a duplicate gear, 63, a straight gear, 64, a first shaft, 65 and a second shaft.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, the embodiment discloses a spreading cutter head, which comprises a cutter head body 1, a screw rod 2 rotatably connected in the cutter head body 1, a screw rod seat 3 in threaded connection with the screw rod 2, a sliding disc 4 fixedly connected on the screw rod seat 3 and a cutter arranged on the sliding disc 4, wherein shaft sections 201 are respectively arranged at two ends of the screw rod 2, a supporting mechanism 5 is arranged on the shaft sections 201, the supporting mechanism 5 is connected on the cutter head body 1, the supporting mechanism 5 comprises a first planar thrust ball bearing 51, a second deep groove ball bearing 52 and a second planar thrust ball bearing 53 which are sequentially sleeved on the shaft sections 201 from inside to outside, the first planar thrust ball bearing 51 abuts against the end surface of the screw rod 2, a locking piece 54 is arranged at the outer side of the second planar thrust ball bearing 53, the locking piece 54 is connected on the shaft sections 201, the outer end surface of the locking piece 54 abuts against the second planar thrust ball bearing 53, bearing seats 55 are respectively arranged at the outer peripheries of the deep groove ball bearings 52, the bearing seats 55 are connected on the cutter head body 1, one side, which is close to each other, of the first planar thrust ball bearing 51 and the second planar thrust ball bearing 53 abuts against grooves 55 respectively on the shaft grooves 52 and 55, 6, and a power transmission assembly is arranged at the end of the power transmission assembly 6, and connected with the power transmission assembly 6.
In the embodiment, the sides of the first plane thrust ball bearing 51 and the second plane thrust ball bearing 53, which are close to each other, are loose rings, the sides of the first plane thrust ball bearing 51 and the second plane thrust ball bearing 53, which are far away from each other, are tight rings, namely, the locking piece 54 abuts against the tight rings of the second plane thrust ball bearing 53, the tight rings of the first plane thrust ball bearing 51 abut against the end face of the screw rod 2, the loose rings of the first plane thrust ball bearing 51 and the second plane thrust ball bearing 53 abut against the bearing seat 55 and the outer ring of the deep groove ball bearing 52 respectively, the locking piece 54 is provided as a locking nut which is in threaded connection with the shaft section 201, the bearing seat 55 is fixed on the cutter disc body 1 through a bolt connection, and when the screw rod 2 rotates, the locking piece 54, the tight rings of the second plane thrust ball bearing 53, the tight rings of the first plane thrust ball bearing 51 and the inner ring of the deep groove ball bearing 52 rotate along with the screw rod 2, and the loose rings of the first plane thrust ball bearing 53, the outer ring of the deep groove ball bearing 52 and the bearing seat 55 do not rotate.
By adopting the scheme, the rigidity of the screw rod 2 can be greatly improved through the supporting mechanism 5, and the situation that the screw rod 2 deforms to influence the processing precision in the processing process is avoided.
In a further optimized scheme, the transmission assembly 6 comprises a bevel gear 61 sleeved on one shaft section 201, the bevel gear 61 is positioned on the inner side of the first plane thrust ball bearing 51, two sides of the bevel gear 61 are respectively abutted against the end face of the screw rod 2 and the tightening ring of the first plane thrust ball bearing 51, the bevel gear 61 is in power connection with a spur gear 63 through a duplex gear 62, the duplex gear 62 and the spur gear 63 are respectively in rotary connection with the cutter head 1 through a first shaft 64 and a second shaft 65, and the driving device is in power connection with the second shaft 65.
In this embodiment, the duplex gear 62 is a duplex gear of bevel gear and spur gear, the bevel gear 61 is meshed with the bevel gear end on the duplex gear 62, the first shaft 64 is fixed on the cutter head 1, the duplex gear 62 is rotationally sleeved on the first shaft 64, the spur gear end on the duplex gear 62 is meshed with the spur gear 63, the spur gear 63 is fixedly sleeved on the second shaft 65, the second shaft 65 is rotationally connected on the cutter head 1, the driving device is a power head, the output shaft of the power head is in power connection with the second shaft 65, the power head is known in the prior art, the working principle and the using method of the power head are not repeated herein, the driving device drives the second shaft 65 and the spur gear 63 to rotate, the spur gear 63 drives the duplex gear 62 to rotate, the duplex gear 62 drives the bevel gear 61 to rotate, and the screw rod 2 can be driven to rotate clockwise or anticlockwise.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (4)
1. The utility model provides a display tool bit, includes cutter head (1), rotates lead screw (2) of being connected in cutter head (1), with lead screw seat (3) of lead screw (2) threaded connection, fixed connection in slide (4) on lead screw seat (3) and set up the cutter on slide (4), wherein both ends of lead screw (2) are provided with axle section (201) respectively, be provided with supporting mechanism (5) on the axle section (201), supporting mechanism (5) are connected on cutter head (1);
The supporting mechanism (5) comprises a first plane thrust ball bearing (51), a deep groove ball bearing (52) and a second plane thrust ball bearing (53) which are sleeved on the shaft section (201) from inside to outside in sequence, wherein the first plane thrust ball bearing (51) is propped against the end face of the screw rod (2), a locking piece (54) is arranged on the outer side of the second plane thrust ball bearing (53), the locking piece (54) is connected to the shaft section (201), the locking piece (54) is propped against the outer end face of the second plane thrust ball bearing (53), a bearing seat (55) is arranged on the periphery of the deep groove ball bearing (52), the bearing seat (55) is connected to the cutter disc body (1), and one side, close to each other, of the first plane thrust ball bearing (51) and the second plane thrust ball bearing (53) is propped against the bearing seat (55) and the second plane thrust ball bearing (52) respectively;
The cutter head body (1) is provided with a transmission assembly (6), the power output end of the transmission assembly (6) is connected with one of the shaft sections (201), and the power input end of the transmission assembly (6) is connected with a driving device.
2. The cutter-head according to claim 1, wherein the transmission assembly (6) comprises a bevel gear (61) sleeved on one of the shaft sections (201), the bevel gear (61) is located on the inner side of the first plane thrust ball bearing (51), two sides of the bevel gear are respectively abutted against the end face of the screw rod (2) and the first plane thrust ball bearing (51), the bevel gear (61) is in power connection with a spur gear (63) through a duplex gear (62), the duplex gear (62) and the spur gear (63) are respectively connected to the cutter head body (1) in a rotating mode through a first shaft (64) and a second shaft (65), and the driving device is in power connection with the second shaft (65).
3. The display cutter head according to claim 1, wherein the locking member (54) is provided as a locking nut which is screwed with the shaft section (201).
4. The display cutter head according to claim 2, wherein the driving device is provided with a power head, and an output shaft of the power head is in power connection with the second shaft (65).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421044741.5U CN222242697U (en) | 2024-05-14 | 2024-05-14 | Exhibition tool bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421044741.5U CN222242697U (en) | 2024-05-14 | 2024-05-14 | Exhibition tool bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222242697U true CN222242697U (en) | 2024-12-27 |
Family
ID=93984146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421044741.5U Active CN222242697U (en) | 2024-05-14 | 2024-05-14 | Exhibition tool bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222242697U (en) |
-
2024
- 2024-05-14 CN CN202421044741.5U patent/CN222242697U/en active Active
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