CN212665468U

CN212665468U - Auxiliary workpiece supporting device for supporting positioning surfaces with different heights

Info

Publication number: CN212665468U
Application number: CN202020659438.1U
Authority: CN
Inventors: �金钟; 朱东平; 章下在; 张赞乐; 韩霄宇
Original assignee: Zhejiang Gif Automobile Transmission System Co ltd
Current assignee: Zhejiang Gif Automobile Transmission System Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-03-09
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a work piece auxiliary stay device for supporting locating surface of co-altitude not, comprising a supporting base, be equipped with the bracing piece that is screw-thread fit's lock nut and is used for supporting the work piece with the supporting seat on the supporting seat, be equipped with first conical surface on the supporting seat top outer wall, be equipped with on lock nut's the top inner wall with first conical surface matched with second conical surface, the middle part of supporting seat is equipped with first cavity, the top of first cavity is equipped with a plurality of vertical bar grooves, the bottom of bracing piece is equipped with the stopper, the bottom of stopper has set firmly expanding spring. The device can freely adjust the supporting height of the supporting rod to the workpiece, and the supporting rod is locked by the locking nut, so that the supporting rod is prevented from loosening.

Description

Auxiliary workpiece supporting device for supporting positioning surfaces with different heights

Technical Field

The utility model belongs to the technical field of machining makes, especially, relate to a work piece auxiliary stay device for supporting co-altitude locating surface not.

Background

In order to ensure that the supporting mode is suitable for the condition that the supporting points of different parts are inconsistent in height, the conventional auxiliary supporting mode is a mode of adding a nut above a screw rod, and the screw rod is manually screwed to ensure that the supporting point is contacted with the surface of a workpiece; but when the main shaft cutter cuts a workpiece in the machining process, the workpiece is stressed, but the supporting device is not locked, when the stress of the workpiece is transmitted to the supporting point, because the workpiece is not locked and is in threaded connection, the stress vibration of the workpiece is separated from the supporting point to generate a gap, the workpiece is stressed and elastically deformed, and rebounds after cutting, so that the flatness of the cutting surface is greatly changed.

Disclosure of Invention

The utility model discloses an overcome prior art not enough, provide a can be freely height-adjusting and lock dead work piece auxiliary stay device who is used for supporting not co-altitude locating surface.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a workpiece auxiliary supporting device for supporting positioning surfaces with different heights comprises a supporting seat, wherein a locking nut in threaded fit with the supporting seat and a supporting rod for supporting a workpiece are arranged on the supporting seat, a first conical surface is arranged on the outer wall of the top of the supporting seat, a second conical surface matched with the first conical surface is arranged on the inner wall of the top of the locking nut, a first cavity is arranged in the middle of the supporting seat, a plurality of vertical strip-shaped grooves are formed in the top of the first cavity, a limiting block is arranged at the bottom of the supporting rod, and a telescopic spring is fixedly arranged at the bottom of the limiting block; through the matching arrangement of the supporting seat and the locking nut, the supporting rod can be quickly locked before supporting a workpiece, the arrangement of the first conical surface and the second conical surface ensures that the locking nut can extrude the side wall of the first cavity when vertically moving downwards to realize surface-to-surface contact so as to achieve the locking effect of the supporting rod, and the arrangement of the limiting block and the telescopic spring ensures that the supporting rod can adapt to positioning surfaces with different heights of different workpieces so as to increase the application range of the device, meanwhile, when supporting the workpiece, the telescopic spring can provide upward axial acting force for the supporting rod to offset the downward axial acting force of the part of the supporting rod brought by the workpiece, thereby avoiding the loosening of the supporting rod, and the supporting rod has upward partial force to act on the side wall of the first cavity to extrude the side wall of the first cavity so as to achieve the effect of expanding the aperture of the supporting seat, make the ascending axial effort of expanding spring convert into the horizontal effort to lock nut, guaranteed inseparabler contact between face and the face to strengthen the extrusion strength between the screw thread, strengthened lock nut's locking effect.

Preferably, a second cavity is arranged below the first cavity, and the inner diameter of the first cavity is smaller than that of the second cavity; through the internal diameter setting to first cavity and second cavity, can provide the activity space for the stopper, and increased the internal diameter of second cavity, increased the stress point, strengthened the atress intensity to the holding power of supporting seat has been strengthened.

Preferably, a circular hole is formed in the bottom of each vertical strip-shaped groove, and the distances among the vertical strip-shaped grooves are equal; through the setting of above-mentioned circular port for the inner wall in above-mentioned vertical bar groove can contact with the lateral wall of bracing piece completely, realize the complete contact of face and face, increased the frictional force between vertical bar groove and the bracing piece, the fixed strength to the bracing piece has been strengthened, and the setting of the interval between the vertical bar groove, in order to keep the fixed stability to the bracing piece, when making the supporting seat to bracing piece locking, the effort that each department received on the bracing piece equals the equilibrium, avoid the slope of bracing piece and lead to the aggravation loss of device.

Preferably, the outer diameter of the limiting block is larger than the inner diameter of the first cavity and smaller than the inner diameter of the second cavity; through the setting of above-mentioned stopper, hinder for the axial effort of expanding spring to the bracing piece, avoid the bracing piece to shift up excessively, and break away from the supporting seat, guarantee the stability of structure, can guarantee the smooth vertical removal of stopper simultaneously, and avoid the contact between the inner wall of stopper and second cavity, loss when reducing the stopper and removing.

Preferably, the side wall of the supporting seat is provided with an outer edge part, the outer wall of the outer edge part is provided with an external thread, and the inner wall of the locking nut is provided with an internal thread matched with the external thread; through the arrangement of the external threads and the internal threads, the locking nut can be matched with the supporting seat, the supporting rod is reliably and firmly locked, and the stability of supporting a workpiece is guaranteed.

Preferably, a third conical surface is arranged at the top of the outer edge part, a fourth conical surface matched with the third conical surface is arranged on the locking nut, and the length of the third conical surface is smaller than that of the fourth conical surface; through the arrangement of the third conical surface and the fourth conical surface, after the support rod is completely locked by the locking nut, the third conical surface can move up and down for a certain distance on the fourth conical surface, so that the inner wall above the third conical surface is deformed to extrude the fourth conical surface, and the locking strength between threads is enhanced.

Preferably, the bottom of the supporting rod is provided with an annular groove, the annular groove is arranged above the limiting block, and a supporting column is arranged below the limiting block; through the arrangement of the annular grooves, stress points of the supporting rods are increased, force action is concentrated, and loss of the supporting rods is reduced.

Preferably, the bottom of the supporting seat is provided with an annular connecting plate, and the annular connecting plate is annularly provided with a plurality of uniformly distributed bolt holes; through the arrangement of the annular connecting plate and the bolt holes, the device can be fixed on any machine tool platform through bolts, any workpiece is supported, the application range of the device is effectively enlarged, the structure is simple, the replacement is easy, the cost is reduced, and the device is very practical.

The utility model has the advantages of it is following: the device can freely adjust the height of the supporting rod by utilizing the acting force of the bottom spring, and achieves the purpose of locking by utilizing the expanding type matching of the nut and the supporting seat, and after the locking, the workpiece is stressed and vibrated during cutting and cannot be separated from a contact point, so that the flatness of the processing surface of the workpiece is reduced; meanwhile, the contact mode of the surface and the surface increases the friction force and can effectively reduce the defects of instability and easy abrasion caused by point-line contact.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the support seat in fig. 1.

Fig. 3 is a schematic structural view of the top of the support seat in fig. 1.

Detailed Description

As shown in fig. 1-3, a workpiece auxiliary supporting device for supporting positioning surfaces of different heights comprises a supporting seat 1, a locking nut 2 in threaded fit with the supporting seat 1 and a supporting rod 3 for supporting a workpiece are arranged on the supporting seat 1, a first conical surface 11 is arranged on the outer wall of the top of the supporting seat 1, a second conical surface 21 matched with the first conical surface 11 is arranged on the inner wall of the top of the locking nut 2, a first cavity 12 is arranged in the middle of the supporting seat 1, a second cavity 13 is arranged below the first cavity 12, the inner diameter of the first cavity 12 is smaller than that of the second cavity 13, through the arrangement of the inner diameters of the first cavity and the second cavity, a movable space can be provided for a limiting block, the inner diameter of the second cavity is increased, a stress point is increased, the stress strength is enhanced, and the supporting force of the supporting seat is enhanced, the first cavity is used for placing the supporting, the support rod can move vertically; the bottom of the supporting rod 3 is provided with a limiting block 31, the bottom of the limiting block 31 is fixedly provided with an expansion spring 32, the supporting rod can be quickly locked before supporting a workpiece through the matching arrangement of the supporting seat and the locking nut, the arrangement of the first conical surface and the second conical surface can extrude the side wall of the first cavity when the locking nut vertically moves downwards, so that the surface-to-surface contact is realized, the locking effect of the supporting rod is achieved, the arrangement of the limiting block and the expansion spring enables the supporting rod to adapt to positioning surfaces with different heights of different workpieces, the application range of the device is increased, meanwhile, when the workpiece is supported, the expansion spring can provide upward axial acting force for the supporting rod, the downward axial acting force of the part of the workpiece, which is brought to the supporting rod, is counteracted, the looseness of the supporting rod is avoided, and part of force acts on the side wall of the first cavity when the supporting rod, the lateral wall to first cavity forms the extrusion to reach the effect in expansion supporting seat aperture, make the ascending axial effort of expanding spring turn into the horizontal effort to lock nut, guaranteed inseparabler contact between face and the face, thereby strengthened the extrusion strength between the screw thread, strengthened lock nut's locking effect.

As shown in fig. 3, a plurality of vertical bar-shaped grooves 121 are arranged at the top of the first cavity 12, the vertical bar-shaped grooves are arranged to contract the caliber of the top of the supporting seat, so as to achieve the effect of contacting with the outer wall of the supporting rod, thereby achieving the locking of the supporting rod, a circular hole 122 is arranged at the bottom of each vertical bar-shaped groove 121, the distance between each vertical bar-shaped groove 121 is equal, the inner wall of each vertical bar-shaped groove can be completely contacted with the side wall of the supporting rod through the arrangement of the circular hole, thereby achieving the complete surface-to-surface contact, increasing the friction between the vertical bar-shaped groove and the supporting rod, enhancing the fixing strength of the supporting rod, and the distance between the vertical bar-shaped grooves is arranged to keep the fixing stability of the supporting rod, so that the acting force on each position on the supporting rod is equal and balanced when the supporting seat is locked to the supporting rod, the vertical strip-shaped grooves can be arranged in a plurality of manners, no matter how many vertical strip-shaped grooves are arranged, the distance between every two vertical strip-shaped grooves is equal, and the length of each vertical strip-shaped groove is greater than that of each first conical surface.

As shown in fig. 1-2, the outer diameter of the limiting block 31 is larger than the inner diameter of the first cavity 12 and smaller than the inner diameter of the second cavity 13, and the setting of the limiting block prevents the axial acting force of the telescopic spring on the supporting rod, so that the supporting rod is prevented from moving upwards excessively and being separated from the supporting seat, the stability of the structure is ensured, the smooth vertical movement of the limiting block can be ensured, the contact between the limiting block and the inner wall of the second cavity is avoided, and the loss of the limiting block during movement is reduced; the bottom of bracing piece 3 is equipped with ring channel 33, and the top of stopper 31 is located to ring channel 33, and the below of stopper 31 is equipped with support column 314, through the setting of above-mentioned ring channel, has increased the stress point of bracing piece, has concentrated the effect of power, has reduced the loss of bracing piece, and above-mentioned support column can support the bracing piece, avoids the bracing piece to move down excessively, and compression expanding spring is excessive, increases expanding spring's loss.

As shown in fig. 1, an outer edge portion 14 is arranged on the side wall of a supporting seat 1, an external thread is arranged on the outer wall of the outer edge portion 14, an internal thread matched with the external thread is arranged on the inner wall of a locking nut 2, and the locking nut and the supporting seat can be matched with each other through the arrangement of the external thread and the internal thread, so that a supporting rod can be reliably and firmly locked, and the stability of supporting a workpiece is ensured; the top of outer portion 14 of following is equipped with the third conical surface 141, be equipped with on the lock nut 2 with third conical surface 141 matched with fourth conical surface 22, the length of third conical surface 141 is less than fourth conical surface 22, through the setting of above-mentioned third conical surface and fourth conical surface, make lock nut after locking the bracing piece completely, the third conical surface can move a certain distance from top to bottom at the fourth conical surface, make the inner wall of third conical surface top take place to deform, form the extrusion to the fourth conical surface, thereby the locking intensity between the screw thread has been strengthened.

As shown in fig. 1, the bottom of the supporting seat 1 is provided with an annular connecting plate 15, the annular connecting plate 15 is annularly provided with a plurality of uniformly distributed bolt holes 151, and the device can be fixed on any machine tool platform through bolts and supports any workpiece through the arrangement of the annular connecting plate and the bolt holes, so that the application range of the device is effectively enlarged, the structure is simple, the replacement is easy, the cost is reduced, and the practicability is high.

In the machining process, when a workpiece is clamped, the locking nut is loosened, the supporting rod is freely adjusted under the action of the elastic force of the spring until the supporting rod contacts the surface of the workpiece, and the locking nut is screwed down, so that the supporting rod moves up and down under the action of the elastic force of the spring and stops deforming after contacting the surface of the workpiece; supporting seat top cooperation lock nut makes supporting seat top aperture laminating bracing piece after, lock nut through the frictional force between face and the face to reach the effect of the dead bracing piece of lock, because the work piece does not lock or the clearance that the dead mode of point, line contact brought when reducing the cutting work piece.

Claims

1. The utility model provides a work piece auxiliary stay device for supporting locating surface of co-altitude not, includes supporting seat (1), its characterized in that: be equipped with on supporting seat (1) and be screw-thread fit's lock nut (2) and bracing piece (3) that are used for supporting the work piece with supporting seat (1), be equipped with first conical surface (11) on supporting seat (1) top outer wall, be equipped with on the top inner wall of lock nut (2) second conical surface (21) with first conical surface (11) matched with, the middle part of supporting seat (1) is equipped with first cavity (12), the top of first cavity (12) is equipped with a plurality of vertical bar grooves (121), the bottom of bracing piece (3) is equipped with stopper (31), the bottom of stopper (31) has set firmly expanding spring (32).

2. A workpiece auxiliary supporting device for supporting positioning surfaces of different heights according to claim 1, characterized in that: a second cavity (13) is arranged below the first cavity (12), and the inner diameter of the first cavity (12) is smaller than that of the second cavity (13).

3. A workpiece auxiliary supporting device for supporting positioning surfaces of different heights according to claim 1, characterized in that: the bottom of each vertical strip-shaped groove (121) is provided with a circular hole (122), and the distance between every two vertical strip-shaped grooves (121) is equal.

4. A workpiece auxiliary supporting device for supporting positioning surfaces of different heights according to claim 2, characterized in that: the outer diameter of the limiting block (31) is larger than the inner diameter of the first cavity (12) and smaller than the inner diameter of the second cavity (13).

5. A workpiece auxiliary supporting device for supporting positioning surfaces of different heights according to claim 1, characterized in that: the supporting seat is characterized in that an outer edge portion (14) is arranged on the side wall of the supporting seat (1), an external thread is arranged on the outer wall of the outer edge portion (14), and an internal thread matched with the external thread is arranged on the inner wall of the locking nut (2).

6. The auxiliary workpiece support device for supporting positioning surfaces with different heights as claimed in claim 5, wherein: the top of outer edge portion (14) is equipped with third conical surface (141), be equipped with on lock nut (2) with third conical surface (141) matched with fourth conical surface (22), the length of third conical surface (141) is less than fourth conical surface (22).

7. A workpiece auxiliary supporting device for supporting positioning surfaces of different heights according to claim 1, characterized in that: the bottom of bracing piece (3) is equipped with ring channel (33), the top of stopper (31) is located in ring channel (33), the below of stopper (31) is equipped with support column (314).

8. A workpiece auxiliary supporting device for supporting positioning surfaces of different heights according to claim 1, characterized in that: the bottom of supporting seat (1) is equipped with annular connecting plate (15), annular connecting plate (15) are fitted with a contraceptive ring and are equipped with bolt hole (151) of a plurality of equipartitions.