CN214023525U - Length-adjustable center - Google Patents
Length-adjustable center Download PDFInfo
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- CN214023525U CN214023525U CN202023285004.9U CN202023285004U CN214023525U CN 214023525 U CN214023525 U CN 214023525U CN 202023285004 U CN202023285004 U CN 202023285004U CN 214023525 U CN214023525 U CN 214023525U
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- adjusting
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- center
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Abstract
The utility model relates to the technical field of machining tools, in particular to a length-adjustable center, which comprises a center seat and a center rod, wherein the center seat is provided with an adjusting hole and a connecting hole along the length direction of the center seat, the adjusting hole is communicated with the connecting hole and the center seat is penetrated through by the adjusting hole and the connecting hole together, and the diameter of the adjusting hole is smaller than that of the connecting hole; the top rod is inserted in the connecting hole in a sliding mode and is attached to the inner side wall of the connecting hole, and the tip end of the top rod extends out of one end, far away from the adjusting hole, of the connecting hole; the inner wall of the adjusting hole is provided with an internal thread, an adjusting rod is inserted in the adjusting hole, the outer wall of the adjusting rod is provided with an external thread, the adjusting rod is in threaded connection with the adjusting hole, one end of the adjusting rod extends out of one end of the adjusting hole, which is far away from the connecting hole, and one end of the adjusting rod, which is close to the center pole, is in contact with the end face of the center pole; and the center seat is provided with a locking assembly for locking and fixing the position of the center rod. The utility model discloses have the effect that can adjust, convenient to use to top whole length.
Description
Technical Field
The utility model belongs to the technical field of the technique of machining frock and specifically relates to a length-adjustable is top.
Background
The auxiliary parts of the machine tool in the center type machining usually comprise a center seat and a center rod which are fixedly connected. When the tool is used, the center seat is connected with a machine tool, and the machine tool can drive the center to rotate, so that other materials can be processed.
During machining with a point, the following may be encountered: the two centers are connected to two stations of the machine tool and are oppositely arranged, the material to be processed is placed between the two centers, and the two centers can process two ends of the material simultaneously. In the above case, since the distance between the two stations of the machine tool is fixed, the distance between the two centers is also fixed, and when materials with different sizes are processed, the centers with different specifications need to be replaced according to the sizes of the materials to ensure that the centers can contact with the two ends of the materials, so that the operation is troublesome during use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a length-adjustable is top, it has the effect that can adjust, convenient to use to top whole length, to the not enough of prior art existence.
The above technical effect of the utility model can be realized through following technical scheme:
a length-adjustable center comprises a center seat and a center rod, wherein the center seat is provided with an adjusting hole and a connecting hole along the length direction of the center seat, the adjusting hole is communicated with the connecting hole and penetrates through the center seat together with the connecting hole, and the diameter of the adjusting hole is smaller than that of the connecting hole; the top rod is inserted in the connecting hole in a sliding mode and is attached to the inner side wall of the connecting hole, and the tip end of the top rod extends out of one end, far away from the adjusting hole, of the connecting hole; the inner wall of the adjusting hole is provided with an internal thread, an adjusting rod is inserted into the adjusting hole, the outer wall of the adjusting rod is provided with an external thread, the adjusting rod is in threaded connection with the adjusting hole, one end of the adjusting rod extends out of one end, far away from the connecting hole, of the adjusting hole, and one end, close to the center rod, of the adjusting rod is in contact with the end face of the center rod; and the center seat is provided with a locking assembly for locking and fixing the position of the center rod.
By adopting the technical scheme, when the length of the whole center needs to be adjusted and extended, a worker firstly adjusts the locking assembly to enable the locking assembly to lose the locking effect on the center rod, then rotates the adjusting rod to enable the adjusting rod to move towards the direction close to the connecting hole, the adjusting rod can push the center rod to stably move towards the direction far away from the adjusting hole, and after the center rod moves to a proper position, the locking assembly is adjusted to lock and fix the position of the center rod, so that the length of the whole center can be increased; when the length of the whole center needs to be adjusted and shortened, a worker firstly adjusts the locking assembly to enable the locking assembly to lose the locking effect, then rotates the adjusting rod to enable the adjusting rod to move towards the direction far away from the center rod, then pushes the center rod to enable the center rod to move towards the direction close to the adjusting hole, and finally adjusts the locking assembly to fix the position of the center rod after the center rod moves to a proper position, so that the length of the whole center can be shortened.
The present invention may be further configured in a preferred embodiment as: the locking assembly comprises a locking threaded hole formed in the center seat and a locking bolt in threaded connection with the locking threaded hole, the central shaft of the locking threaded hole is perpendicular to the central shaft of the connecting hole, and the end portion of the locking bolt tightly abuts against the center rod.
Through adopting above-mentioned technical scheme, when locking bolt and top pole tightly contradict, locking bolt can be fixed with the position locking of top pole, and when rotating locking bolt and making locking bolt and top pole separation, locking bolt loses the locking effect to top pole promptly, and convenient to use is swift.
The present invention may be further configured in a preferred embodiment as: the adjusting rod is provided with an adjusting block at one end far away from the top point rod, and an inner hexagonal groove is formed in the surface of the adjusting block, which deviates from the adjusting rod.
Through adopting above-mentioned technical scheme, the staff can use the instrument to rotate the regulation pole, convenient operation.
The present invention may be further configured in a preferred embodiment as: and the part of the adjusting rod, which is positioned outside the adjusting hole, is in threaded sleeve connection with a locking nut, and the locking nut is attached to the end face of the tip seat.
Through adopting above-mentioned technical scheme, lock nut can be fixed with the position locking of adjusting the pole to improve the stability of adjusting the pole, when needs rotate the regulation pole, at first rotate lock nut make lock nut and apical lamella seat separation can.
The present invention may be further configured in a preferred embodiment as: and one end of the tip seat, which is far away from the adjusting hole, is set to be conical.
By adopting the technical scheme, the possibility of collision between the tip seat and other objects is reduced, and the function of protecting the tip seat is achieved.
The present invention may be further configured in a preferred embodiment as: and the edge of the end surface of the center rod close to one end of the adjusting rod is provided with an arc chamfer.
Through adopting above-mentioned technical scheme, when top pole damaged, the staff can take out top pole from the spread groove and change, and the setting of circular arc chamfer can make things convenient for top pole to insert in the spread groove.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the overall length of the center can be adjusted, and the operation is convenient and rapid;
2. when the centre rod is damaged, the centre rod can be independently replaced, and the cost is saved.
Drawings
Fig. 1 is a schematic structural view of a length-adjustable center according to an embodiment.
In the figure, 1, a tip seat; 2. a tip rod; 3. an adjustment hole; 4. connecting holes; 5. adjusting a rod; 6. a locking assembly; 61. locking the threaded hole; 62. locking the bolt; 7. an adjusting block; 8. an inner hexagonal groove; 9. and locking the nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1, for the utility model discloses a centre with adjustable length, including centre seat 1 and centre pole 2.
The centre seat 1 is seted up the regulation hole 3 and the connecting hole 4 of coaxial setting along self length direction, and regulation hole 3 and connecting hole 4 intercommunication and the two run through centre seat 1 jointly, and the diameter of regulation hole 3 is less than the diameter of connecting hole 4. The top rod 2 is inserted into the connecting hole 4 in a sliding mode and attached to the inner side wall of the connecting hole 4, and the tip end of the top rod 2 extends out of one end, far away from the adjusting hole 3, of the connecting hole 4. The inner wall of regulation hole 3 is provided with the internal thread, and 3 interpolations in regulation hole are equipped with adjusts pole 5, and the outer wall of adjusting pole 5 is equipped with the external screw thread, adjusts pole 5 and 3 threaded connection in regulation hole, and the one end of adjusting pole 5 is stretched out from the one end that the connecting hole 4 was kept away from in regulation hole 3, adjusts the one end that pole 5 is close to top pole 2 and the end face contact of top pole 2.
The center seat 1 is provided with a locking assembly 6 for locking and fixing the position of the center rod 2, and the locking assembly 6 comprises a locking threaded hole 61 and a locking bolt 62. The locking threaded hole 61 is formed in the center seat 1, and the central axis of the locking threaded hole 61 is perpendicular to the central axis of the connecting hole 4. The locking bolt 62 is in threaded connection with the locking threaded hole 61, and the end of the locking bolt 62 tightly abuts against the center rod 2, so that the position of the center rod 2 can be locked and fixed, and when the locking bolt 62 is rotated to separate the locking bolt 62 from the center rod 2, the center rod 2 can slide along the axial direction of the connecting hole 4.
The one end welding of keeping away from top pole 2 of adjusting pole 5 has regulating block 7, and regulating block 7 is cylindric, and the central department on the surface that regulating block 7 deviates from adjusting pole 5 has seted up interior hexagonal recess 8, can make things convenient for staff's use tools to rotate and adjust pole 5.
Adjusting the partial screw thread that pole 5 is located outside adjusting hole 3 and having cup jointed lock nut 9, lock nut 9 and the terminal surface of apical plate 1 to can be fixed with the position locking of adjusting pole 5, improve the stability of adjusting pole 5, when lock nut 9 and the terminal surface separation of apical plate 1, the staff can use the instrument to rotate and adjust pole 5.
When the operator needs to extend the length of the whole center, firstly, the locking bolt 62 is rotated to separate the locking bolt 62 from the center rod 2, the locking nut 9 is rotated to separate the locking nut 9 from the center seat 1, then the adjusting rod 5 is rotated by using a tool to move the adjusting rod 5 towards the direction close to the connecting hole 4, the adjusting rod 5 can push the center rod 2 to stably extend out of the connecting hole 4, after the center rod 2 moves to a proper position, the locking bolt 62 is screwed down to lock and fix the position of the center rod 2, and the locking nut 9 is rotated to enable the locking nut 9 to be attached to the end face of the center seat 1; when the length of the whole center needs to be shortened, firstly, the locking bolt 62 is rotated to enable the locking bolt 62 to be separated from the center rod 2, the locking nut 9 is rotated to enable the locking nut 9 to be separated from the center seat 1, then the adjusting rod 5 is rotated by using a tool to enable the adjusting rod 5 to move towards the direction far away from the connecting hole 4, then the center rod 2 is pushed by hand to move towards the direction close to the adjusting hole 3, after the center rod 2 moves to a proper position, the locking bolt 62 is screwed up to lock and fix the position of the center rod 2, and the locking nut 9 is rotated to enable the locking nut 9 to be attached to the end face of the center seat 1.
In conclusion, the length-adjustable centre has the effects of being capable of adjusting the whole length of the centre and being convenient to use. In addition, in the actual use process of the centre, the tip of the centre rod 2 is easy to damage, when the centre rod 2 is damaged, a worker only needs to unscrew the locking bolt 62 and replace the new centre rod 2, and does not need to replace the centre rod together with the centre seat 1, so that the centre has the advantage of saving the production cost.
The edge of the end face, close to the end face of the adjusting rod 5, of the center rod 2 is provided with the arc chamfer, the arc chamfer can facilitate the insertion of the center rod 2 into the connecting hole 4, and therefore a worker can replace the center rod 2 conveniently when the center rod 2 is damaged.
The one end that the apex seat 1 kept away from regulation hole 3 sets up to the taper, can reduce apex seat 1 and other objects and take place the possibility of colliding to play the effect of protection apex seat 1.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The utility model provides a top with adjustable length, includes top seat (1) and top pole (2), its characterized in that: the adjusting hole (3) and the connecting hole (4) are formed in the center seat (1) along the length direction of the adjusting hole (3) and the connecting hole (4), the adjusting hole (3) is communicated with the connecting hole (4), the adjusting hole and the connecting hole penetrate through the center seat (1) together, and the diameter of the adjusting hole (3) is smaller than that of the connecting hole (4); the top point rod (2) is inserted into the connecting hole (4) in a sliding mode and is attached to the inner side wall of the connecting hole (4), and the tip end of the top point rod (2) extends out of one end, far away from the adjusting hole (3), of the connecting hole (4); the inner wall of the adjusting hole (3) is provided with an internal thread, an adjusting rod (5) is inserted into the adjusting hole (3), the outer wall of the adjusting rod (5) is provided with an external thread, the adjusting rod (5) is in threaded connection with the adjusting hole (3), one end of the adjusting rod (5) extends out of one end of the adjusting hole (3) far away from the connecting hole (4), and one end of the adjusting rod (5) close to the center pole (2) is in contact with the end face of the center pole (2); and the center seat (1) is provided with a locking component (6) for locking and fixing the position of the center rod (2).
2. A length adjustable tip as claimed in claim 1, wherein: the locking assembly (6) comprises a locking threaded hole (61) formed in the center seat (1) and a locking bolt (62) in threaded connection with the locking threaded hole (61), the central shaft of the locking threaded hole (61) is perpendicular to the central shaft of the connecting hole (4), and the end portion of the locking bolt (62) tightly abuts against the center rod (2).
3. A length adjustable tip as claimed in claim 1, wherein: the adjusting rod (5) is far away from one end of the top rod (2) and is provided with an adjusting block (7), and an inner hexagonal groove (8) is formed in the surface of the adjusting block (7) departing from the adjusting rod (5).
4. A length adjustable tip as claimed in claim 1, wherein: the adjusting rod (5) is positioned outside the adjusting hole (3) and is sleeved with a locking nut (9) in a threaded manner, and the locking nut (9) is attached to the end face of the tip seat (1).
5. A length adjustable tip as claimed in claim 1, wherein: one end of the tip seat (1) far away from the adjusting hole (3) is set to be conical.
6. A length adjustable tip as claimed in claim 1, wherein: and the edge of the end face of the tip rod (2) close to one end of the adjusting rod (5) is provided with an arc chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023285004.9U CN214023525U (en) | 2020-12-30 | 2020-12-30 | Length-adjustable center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023285004.9U CN214023525U (en) | 2020-12-30 | 2020-12-30 | Length-adjustable center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214023525U true CN214023525U (en) | 2021-08-24 |
Family
ID=77343733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023285004.9U Active CN214023525U (en) | 2020-12-30 | 2020-12-30 | Length-adjustable center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214023525U (en) |
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2020
- 2020-12-30 CN CN202023285004.9U patent/CN214023525U/en active Active
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