CN220659244U - Crankshaft axial positioning center - Google Patents

Abstract

The utility model relates to the technical field of centers, in particular to a crankshaft axial positioning center. The utility model provides a bent axle axial positioning is top, including the top axle that has the centre locating hole, there is the connecting seat on the top axle, top axle one end has the top point, there are a plurality of fixed orificess on the connecting seat, there is helicoidal groove A fixed orifices one side, there is coupling assembling between top axle and the top point, coupling assembling includes on the top epaxial helicoidal groove B, there is the post groove on the top axle of helicoidal groove B one side, there is the spacing groove on the top axle of post groove one side, there is the spread groove on the top axle of spacing groove one side, there is the sealing layer on the spread groove inner wall, there is the double-screw bolt that has the handle in the helicoidal groove B, double-screw bolt one end has the support opening post, there is the connecting block top point one end, there is spacing subassembly between connecting block and the support opening post. The utility model aims to solve the technical problem of providing a crankshaft axial positioning center which can be detached between a center point and a center point shaft and can be used for independently replacing and maintaining the center point.

Description

Crankshaft axial positioning center

Technical Field

The utility model relates to the technical field of centers, in particular to a crankshaft axial positioning center.

Background

The center is a machine tool part in machining, has the characteristics of small outer diameter, less interference cutters, suitability for high-rotation-speed and moderate cutting and the like, and comprises a fixed center and a movable center. The fixed center can support parts with complex end surfaces and parts which are not allowed to be drilled with center holes. One end of the center can be used for jacking a central hole or an inner hole of a pipe material, the other end of the center can be used for jacking a spherical or conical part, and the center is fixed by a clamping device. When the part does not allow or cannot be drilled with a center hole, the clamping device can be used for directly clamping the turning. The shell and the mandrel are drilled with pin holes, and the dead and alive purposes of the center are realized by using the pins of the fixed pin to insert or remove. The center can also be used for drilling, threading and reaming of workpieces.

In the process of manufacturing and processing a crankshaft, the crankshaft is usually required to be positioned through the tip, however, in the existing tip, the tip for fixedly connecting with a workpiece and the tip shaft for assisting in positioning the tip and the workpiece are usually fixedly connected, but the tip is more easily damaged compared with the tip shaft in the process of use due to direct contact with the workpiece, so that the tip and the tip shaft are usually replaced together when the tip is damaged, and meanwhile, the tip is usually fixed with other structures through a plurality of bolts, so that once the tip is damaged, a plurality of bolts are required to be screwed to contact with the fixing of the tip, on one hand, the time is consumed, and on the other hand, resources are wasted, so that the crankshaft axial positioning tip capable of independently replacing and maintaining the tip is urgently needed.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a crankshaft axial positioning center which can be detached between a center point and a center point shaft and can be used for independently replacing and maintaining the center point.

The technical scheme adopted by the utility model is as follows: the utility model provides a bent axle axial positioning is top, includes the top axle that has the center locating hole, be equipped with the connecting seat on the top axle, top axle one end is equipped with the top point, be equipped with a plurality of fixed orificess on the connecting seat, fixed orificess one side is equipped with helicoidal groove A, be equipped with coupling assembling between top axle and the top point, coupling assembling is including setting up at epaxial helicoidal groove B of top, be equipped with the post groove on the top axle of helicoidal groove B one side, be equipped with the spacing groove on the top axle of post groove one side, be equipped with the spread groove on the top axle of spacing groove one side, be equipped with the sealing layer on the spread groove inner wall, be equipped with the double-screw bolt that has the handle in the helicoidal groove B, double-screw bolt one end is equipped with the prop, the top one end is equipped with the connecting block, be equipped with spacing subassembly between connecting block and the prop up.

As a further scheme of the utility model: the limiting assembly comprises a fixed groove arranged on the side wall of the connecting block, a fixed plate is arranged in the fixed groove, two springs are arranged on the side wall of the fixed plate, a movable limiting block is connected to the movable end of each spring, an L-shaped limiting plate penetrating through the side wall of the fixed groove is arranged on the side wall of the movable limiting block, supporting open faces are arranged on the side wall of the limiting plate and the side wall of the supporting open column, and a sliding groove for the limiting plate to move is arranged on the side wall of the fixed groove.

As a further scheme of the utility model: the inner diameter of the fixed hole is larger than that of the screw groove A, and the inner diameter of the column groove is larger than that of the screw groove B.

As a further scheme of the utility model: the springs are arranged on two opposite side walls of the fixed plate.

As a further scheme of the utility model: when the propping column is far away from the limiting groove, the spring is in a natural state, and the linear distance between the two limiting plates and the side wall of the inner wall of the limiting groove is smaller than the diameter of the connecting block.

As a further scheme of the utility model: the center positioning hole penetrates through the connecting groove and the connecting block.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the connecting component is arranged between the top shaft and the top tip, so that when the top tip is damaged and needs to be replaced, the position of the propping column can be adjusted by screwing the stud, the propping column leaves the limit groove, so that the force applied to the limit plate is cancelled, the limit plate is reset under the action of the spring to release the limit of the connecting block, the separation of the top tip and the top shaft is realized, the top tip and the top shaft can be connected in the same way, a user can replace the top tip independently, the whole top is replaced without screwing a plurality of bolts, the convenience is realized, and meanwhile, the resource waste is not easy to cause.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of a crankshaft axial locating tip of the present utility model.

Fig. 2 is a cross-sectional view of a crankshaft axial locating tip in accordance with the present utility model.

FIG. 3 is a schematic view of a portion A of an axial locating tip of a crankshaft.

FIG. 4 is a schematic cross-sectional view of a portion of a connecting assembly for an axially locating tip of a crankshaft in accordance with the present utility model.

In the accompanying drawings:

1. a tip shaft; 2. a connecting seat; 3. a top tip; 4. a center positioning hole; 5. a connection assembly; 51. a screw groove B; 52. a stud; 53. a column groove; 54. abutting the column; 55. a limit groove; 56. a connecting groove; 57. a sealing layer; 58. a connecting block; 59. a limit component; 591. a fixing groove; 592. a fixing plate; 593. a spring; 594. a movable limiting block; 595. a limiting plate; 596. a propping surface; 597. a chute; 6. a fixing hole; 7. screw groove A.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution:

embodiment one: the utility model provides a bent axle axial positioning top, including the top axle 1 that has center locating hole 4, be equipped with connecting seat 2 on the top axle 1, top axle 1 one end is equipped with top point 3, be equipped with a plurality of fixed orificess 6 on the connecting seat 2, fixed orificess 6 one side is equipped with helicoidal groove A7, be equipped with coupling assembling 5 between top axle 1 and the top point 3, coupling assembling 5 is including setting up helicoidal groove B51 on top axle 1, be equipped with post groove 53 on the top axle 1 of helicoidal groove B51 one side, be equipped with spacing groove 55 on the top axle 1 of post groove 53 one side, be equipped with spread groove 56 on the top axle 1 of spacing groove 55 one side, be equipped with sealing layer 57 on the connecting groove 56 inner wall, be equipped with the double-screw bolt 52 that has the handle in the helicoidal groove B51, double-screw bolt 52 one end is equipped with and supports and open the post 54, top point 3 one end is equipped with coupling block 58, be equipped with spacing subassembly 59 between coupling block 58 and the support post 54.

The limiting component 59 comprises a fixed groove 591 arranged on the side wall of the connecting block 58, a fixed plate 592 is arranged in the fixed groove 591, two springs 593 are arranged on the side wall of the fixed plate 592, a movable limiting block 594 is connected to the movable end of the springs 593, an L-shaped limiting plate 595 penetrating through the side wall of the fixed groove 591 is arranged on the side wall of the movable limiting block 594, a supporting surface 596 is arranged on the side wall of the limiting plate 595 and the side wall of the supporting column 54, and a sliding groove 597 for the limiting plate 595 to move is arranged on the side wall of the fixed groove 591.

When the tip 3 is damaged and needs to be replaced, a user holds the handle to twist, the handle moves to drive the stud 52 to move, the stud 52 moves to drive the abutting column 54 to move gradually away from the limiting groove 55 and be retracted into the column groove 53, so that the force applied by the abutting column 54 to the limiting plate 595 disappears, the limiting plate 595 moves to reset under the action of the force generated by the lengthening of the spring 593 to release the positioning of the connecting block 58, the user holds the tip 3 to pull in the opposite direction of the tip shaft 1, the tip 3 moves to drive the connecting block 58 to move, the connecting block 58 moves away from the connecting groove 56 to release the connection between the tip 3 and the tip shaft 1, and accordingly the purpose of separating the tip 3 from the tip shaft 1 is achieved.

The working principle of the utility model is as follows: through being equipped with coupling assembling 5 between tip axle 1 and tip 3 for when tip 3 damages and needs to be changed, the accessible is twisted the double-screw bolt 52 and is adjusted the position of supporting post 54, thereby make the post 54 leave spacing groove 55 and cancel the power of applying limiting plate 595, thereby make limiting plate 595 reset under the effect of spring 593 and remove the spacing to connecting block 58, thereby realize tip 3 and tip axle 1's separation, can be connected tip 3 and tip axle 1 in the same way, make the user can change tip 3 alone, and need not to twist a plurality of bolts and change the top is whole, and is comparatively convenient, also be difficult for causing the waste of resource simultaneously, through being equipped with sealing layer 57 on the spread groove 56 inner wall, make this top in the gap entering spread groove 56 between connecting groove 56 and the connecting block 58 when doing the operation, spacing groove 55, post groove 53 and other structures, thereby influence coupling assembling 5's normal function.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (6)

1. The utility model provides a bent axle axial positioning is top, includes top axle (1) that has central locating hole (4), be equipped with connecting seat (2) on top axle (1), top axle (1) one end is equipped with top point (3), its characterized in that: be equipped with a plurality of fixed orificess (6) on connecting seat (2), fixed orificess (6) one side is equipped with helicoidal groove A (7), be equipped with coupling assembling (5) between helicoidal groove B (1) and tip (3), coupling assembling (5) are including setting up helicoidal groove B (51) on helicoidal groove B (1), be equipped with column groove (53) on helicoidal groove B (51) one side on helicoidal shaft (1), be equipped with spacing groove (55) on helicoidal shaft (1) on column groove (53) one side, be equipped with spread groove (56) on apical shaft (1) on spacing groove (55) one side, be equipped with sealing layer (57) on the spread groove (56) inner wall, be equipped with stud (52) with the handle in helicoidal groove B (51), stud (52) one end is equipped with and supports and opens post (54), tip (3) one end is equipped with connecting block (58), be equipped with spacing subassembly (59) between connecting block (58) and the support and open post (54).

2. A crankshaft axial locating tip according to claim 1, wherein: limiting component (59) is including setting up fixed slot (591) on connecting block (58) lateral wall, be equipped with fixed plate (592) in fixed slot (591), be equipped with two springs (593) on fixed plate (592) lateral wall, spring (593) expansion end is connected with movable stopper (594), be equipped with on movable stopper (594) lateral wall and run through limiting plate (595) of L shape of fixed slot (591) lateral wall, all be equipped with on limiting plate (595) lateral wall and the butt post (54) lateral wall and prop up open face (596), be equipped with on fixed slot (591) lateral wall and supply spout (597) of limiting plate (595) activity.

3. A crankshaft axial locating tip according to claim 1, wherein: the inner diameter of the fixing hole (6) is larger than that of the screw groove A (7), and the inner diameter of the column groove (53) is larger than that of the screw groove B (51).

4. A crankshaft axial locating tip according to claim 2, wherein: the springs (593) are disposed on opposite side walls of the fixed plate (592).

5. A crankshaft axial locating tip according to claim 2, wherein: when the propping-open column (54) is far away from the limiting groove (55), the spring (593) is in a natural state, and the linear distance between the two limiting plates (595) and the side wall, which is close to the inner wall of the limiting groove (55), is smaller than the diameter of the connecting block (58).

6. A crankshaft axial locating tip according to claim 1, wherein: the center positioning hole (4) penetrates through the connecting groove (56) and the connecting block (58).