CN217096921U

CN217096921U - Drilling indexing device

Info

Publication number: CN217096921U
Application number: CN202220575175.5U
Authority: CN
Inventors: 邬君辉; 邬建飞; 章仉香
Original assignee: Ningbo Rian Valves Co ltd
Current assignee: Ningbo Rian Valves Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-08-02
Anticipated expiration: 2032-03-16

Abstract

The utility model provides a drilling indexing device, which comprises a fixed round platform, wherein an upper turntable is arranged above the fixed round platform, the bottom of the upper turntable is connected with a rotating shaft, and the rotating shaft is rotationally connected with the fixed round platform; the rotating shaft is sleeved and connected with an indexing block; a plurality of indexing clamping grooves are formed in the side wall of the indexing block along the circumferential direction; the outer wall of the fixed round platform is connected with a bolt rebounding seat; a positioning bolt which is matched and clamped with the indexing clamping groove is connected in the bolt rebounding seat in a sliding mode, a spring is arranged in the bolt rebounding seat, one end of the spring is connected with the positioning bolt, and the other end of the spring is connected with the bolt rebounding seat; the top of the upper turntable is connected with a drill bushing for positioning the top of a workpiece; the upper turntable is also movably provided with a lifting sleeve, a cam shaft for jacking the lifting sleeve is arranged below the lifting sleeve, and the cam shaft is rotationally connected with the upper turntable; one end of the cam shaft is connected with a cam handle. The device has the advantages of reasonable design, convenient operation, convenient clamping, high indexing precision, time saving and labor saving.

Description

Drilling indexing device

Technical Field

The utility model belongs to the technical field of drilling, concretely relates to drilling indexing means.

Background

The end parts of most shaft and pipe products are provided with connecting flanges, and the connecting flanges are generally provided with a plurality of round holes with the same size along a certain reference circle and are used for being connected with other parts. In the process of drilling the round hole of the connecting flange, a lathe is often adopted to mark a reference circle, the position of the center point of the round hole is manually marked according to the calculated hole distance, and finally, the round hole is manually aligned and drilled one by one, so that the machining mode has the defects of multiple working procedures, long time consumption and low machining precision; and for some blanks connected to the end part of the shaft and the pipe, due to the limitation of product shapes, the blanks have the problem of inconvenient clamping and fixing during drilling, and the subsequent drilling indexing work is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art described above, a drilling indexing device is provided. One of the purposes of the invention is to solve the problems of time and labor waste and low processing precision in the traditional drilling indexing; the second purpose of the invention is to solve the problem that the existing product is inconvenient to clamp and fix during drilling.

The utility model provides a technical scheme that its technical problem adopted is:

the technical scheme provides a drilling indexing device which comprises a fixed circular table with a through cavity, wherein an upper rotary table for fixing a workpiece is arranged above the fixed circular table, the bottom of the upper rotary table is connected with a rotary shaft, and the rotary shaft is inserted into the through cavity in the fixed circular table and is rotationally connected with the fixed circular table; the rotating shaft is sleeved with an indexing block; a plurality of indexing clamping grooves are formed in the side wall of the indexing block along the circumferential direction; the outer wall of the fixed round table is also in threaded connection with a bolt rebounding seat with a cavity inside; a positioning bolt is slidably connected in the bolt rebounding seat, a spring is arranged in the bolt rebounding seat, one end of the spring is connected with the positioning bolt, and the other end of the spring is connected with the inner wall of the bolt rebounding seat; the head part of the positioning bolt is in adaptive clamping connection with the indexing clamping groove; the head of the positioning bolt is provided with an arc-shaped surface.

The rotating shaft is sleeved and connected with two groups of bearings which are arranged up and down; the indexing block is arranged between the two groups of bearings and is connected with the rotating shaft through a positioning key; the bearing is arranged in the through cavity in the fixed circular truncated cone; the bottom of the rotating shaft is also in threaded connection with a locking nut; the locking nut is positioned at the bottom end of the fixed round platform.

The bottom of the fixed round table is also connected with a fixed base; the fixed base is connected with the fixed round table through a fixed bolt.

The upper rotary disc is provided with an accommodating notch for installing a workpiece; the top of the upper turntable is connected with a drill bushing for positioning the top of the workpiece; a plurality of round holes are formed in the drill bushing; the upper turntable is also movably provided with a lifting sleeve, a cam shaft for jacking the lifting sleeve is arranged below the lifting sleeve, and the cam shaft is rotationally connected with the upper turntable; one end of the cam shaft is connected with a cam handle.

The lifting sleeve is in threaded connection with a lifting platform used for supporting the bottom end of the workpiece.

A supporting stop block is also arranged in the accommodating groove; the supporting stop block is connected with the upper rotating disc through a fastening bolt.

And the bottom of the drill bush is provided with a positioning groove for clamping the top end of the workpiece.

The upper rotary disc is provided with a sliding hole, and the lifting sleeve is arranged in the sliding hole in a sliding mode.

The positioning bolt is provided with a blind hole, and one end of the spring is arranged in the blind hole.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a through setting up indexing block, last carousel and location bolt isotructure, when using, the indexing block clockwise rotation, the indexing block promotes the bolt and moves back, when turning to the indexing draw-in groove position of indexing block, the location bolt passes through the thrust of spring and just directly is pushed to the draw-in groove by the spring at this moment, makes it fixed, realizes the graduation effect; the head structure of the positioning bolt is provided with one plane and one cambered surface, so that the clockwise rotation can be conveniently controlled, the positioning bolt is directly clamped when rotating in the opposite direction, and the unidirectional rotation control is realized; by adopting the structural form, the problems of time and labor waste and low processing precision in the conventional drilling indexing process can be effectively solved.

2. The utility model discloses a through setting up structures such as camshaft, cam handle and lift cover and elevating platform, the cam handle can realize that positive and negative 90 degrees are rotated, when turning to the jacking trench position, elevating platform and lift cover are in the extreme lower position, realize the work piece and loosen the function, when rotating 90 degrees positions, elevating platform and lift cover are in the extreme higher position, realize the work piece clamping action; by adopting the structure form, the operation is convenient, and the clamping and fixing of the workpiece can be realized quickly.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view (workpiece clamping state) of the present invention.

Fig. 2 is a perspective view (workpiece clamping state) of the present invention at another angle.

Fig. 3 is an exploded view (workpiece clamping state) of the present invention.

Fig. 4 is a perspective view (workpiece released state) of the present invention.

Fig. 5 is a sectional view showing the internal structure of the present invention.

Fig. 6 is an exploded view (workpiece released state) of the present invention.

Figure 7 is a cross-sectional view of the index block in engagement with the locating pin.

Fig. 8 is a perspective view of a drill bushing structure.

Fig. 9 is a perspective view of the drill sleeve at another angle.

Description of reference numerals:

1, an upper turntable; 101, a slide hole; 102 rotating the hole; 103 receiving notches; 104 a rotating shaft; 2, drilling a sleeve; 3, workpiece; 4 a cam handle; 41 a camshaft; 411 jacking a tank; 5, lifting the platform; 6, lifting sleeve; 7 a positioning key; 8, fixing the round table; 9 a bolt rebounding seat; 10 springs; 11, positioning a bolt; 12 fixing a base; 13 fastening the bolt; 14 locking the nut; 15 bearing; 16 index blocks; 161 indexing card slots; 121 fixing bolts; 17 support the stop.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Example one

As shown in fig. 1 to 9, the present embodiment provides a drilling indexing device, which includes a fixed circular truncated cone having a through cavity, an upper rotary table for fixing a workpiece is disposed above the fixed circular truncated cone, a rotary shaft is connected to the bottom of the upper rotary table, and the rotary shaft is inserted into the through cavity inside the fixed circular truncated cone and is rotatably connected to the fixed circular truncated cone; the rotating shaft is sleeved with an indexing block which is arranged in a disc shape; a plurality of indexing clamping grooves are formed in the side wall of the indexing block along the circumferential direction; the outer wall of the fixed round platform is also in threaded connection with a bolt rebounding seat with a cavity inside; the inner cavity of the bolt rebounding seat is communicated with the through cavity of the fixed round platform; a positioning bolt is slidably connected in the bolt rebounding seat, a spring is arranged in the bolt rebounding seat, one end of the spring is connected with the positioning bolt, and the other end of the spring is connected with the inner wall of the bolt rebounding seat; the head part of the positioning bolt is in adaptive clamping connection with the indexing clamping groove; the head part of the positioning bolt is provided with an arc-shaped surface; specifically, one side of the head of the positioning bolt is a plane, and the other side of the head of the positioning bolt is an arc-shaped surface, so that the indexing block can be controlled to rotate clockwise, and the positioning bolt is directly clamped when rotating in the opposite direction.

The connection relationship between the above components is further explained as follows:

in order to ensure the smooth rotation, the rotating shaft is sleeved and connected with two groups of bearings which are arranged up and down, and the bearings are preferably tapered roller bearings; the indexing block is arranged between the two groups of bearings and is connected with the rotating shaft through a positioning key; the bearing is arranged in the through cavity in the fixed round platform; the bottom of the rotating shaft is also in threaded connection with a locking nut; and after the locking nut is screwed down, the locking nut is positioned at the bottom end of the fixed round platform.

In order to increase the contact area and improve the stability of the whole device, the bottom of the fixed round table is also connected with a fixed base; the fixed base is arranged in a rectangular shape; in addition, in order to facilitate disassembly and assembly, the fixed base is connected with the fixed round table through a fixed bolt, and the fixed bolt is an inner hexagon bolt.

To facilitate the installation of the spring, the positioning pin has a blind hole in which one end of the spring is placed.

The specific working principle is as follows:

when the positioning bolt is rotated to a certain indexing clamping groove position of the indexing block, the positioning bolt is directly pushed into the indexing clamping groove by the spring through the thrust of the spring at the moment, so that the indexing block is fixed, the position of a workpiece is positioned, and then the drilling work can be carried out; after the hole at the position is drilled, the upper rotary table continues to rotate, the indexing block rotates until the positioning bolt is clamped with the next indexing clamping groove, the hole at the position is drilled, and the process is repeated continuously to realize indexing drilling. It should be noted that, one side of the head structure of the positioning bolt is a plane, and the other side is an arc surface, which is to control the clockwise rotation, and the head structure of the positioning bolt is directly blocked when rotating in the opposite direction.

Example two

With continued reference to fig. 1-9, on the basis of the first embodiment, the drill hole indexing device provided in this embodiment may adopt the following arrangement with respect to the specific structure of the fixed workpiece: the upper rotary disc is provided with an accommodating notch for installing a workpiece; the top of the upper turntable is connected with a drill bushing for positioning the top of the workpiece, and the drill bushing is provided with a plurality of round holes; the bottom of the drill bush is provided with a positioning groove for clamping the top end of the workpiece; the upper rotary disc is also movably provided with a lifting sleeve, and specifically, the upper rotary disc is provided with a sliding hole, and the lifting sleeve is arranged in the sliding hole in a sliding manner; a cam shaft used for jacking the lifting sleeve is arranged below the lifting sleeve and is rotationally connected with the upper rotary disc; one end of the cam shaft is connected with a cam handle.

The jacking groove is formed in the cam shaft to form a cam structure, the cam handle can realize positive and negative 90-degree rotation, when the position of the jacking groove is rotated, the lifting table and the lifting sleeve are arranged at the lowest position to realize the function of loosening a workpiece, and when the position of 90-degree rotation is rotated, the lifting table and the lifting sleeve are arranged at the highest position to realize the function of clamping the workpiece.

And (3) auxiliary explanation: the lifting platform can also realize the functions of up-regulation and down-regulation of the thread on the lifting sleeve.

A supporting stop block is also arranged in the accommodating groove; the support stop block is connected with the upper rotating disc through a fastening bolt; the supporting stop block plays a role in blocking and supporting the side wall of the workpiece; the supporting stop block is arranged in an arc shape so as to be attached to the outer wall of the workpiece.

The specific working principle is as follows:

when the lifting device is used, a workpiece is placed in the accommodating groove opening, the cam handle can rotate forward and backward by 90 degrees, after the lifting sleeve is lifted by the cam handle, the lifting platform drives the workpiece to move upwards, and the top of the workpiece is positioned in the positioning groove at the bottom of the drill sleeve, so that the workpiece can be clamped; when the cam handle rotates reversely, the lifting sleeve is located in the jacking groove due to the arrangement of the jacking groove, so that the lifting sleeve descends, and further the workpiece is loosened.

The device has simple structure and convenient operation, and can solve the problems of time and labor waste and low processing precision in the traditional drilling indexing; the problem of the inconvenient centre gripping of work piece is fixed when can also solving current product drilling.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A drilling indexing device comprises a fixed circular table with a through cavity, and is characterized in that an upper rotary table for fixing a workpiece is arranged above the fixed circular table, the bottom of the upper rotary table is connected with a rotary shaft, and the rotary shaft is inserted into the through cavity in the fixed circular table and is rotatably connected with the fixed circular table; the rotating shaft is sleeved with an indexing block; a plurality of indexing clamping grooves are formed in the side wall of the indexing block along the circumferential direction; the outer wall of the fixed round table is also in threaded connection with a bolt rebounding seat with a cavity inside; a positioning bolt is slidably connected in the bolt rebounding seat, a spring is arranged in the bolt rebounding seat, one end of the spring is connected with the positioning bolt, and the other end of the spring is connected with the inner wall of the bolt rebounding seat; the head part of the positioning bolt is in adaptive clamping connection with the indexing clamping groove; the head of the positioning bolt is provided with an arc-shaped surface.

2. The drilling and indexing device as claimed in claim 1, wherein the rotating shaft is sleeved with two sets of bearings arranged up and down; the indexing block is arranged between the two groups of bearings and is connected with the rotating shaft through a positioning key; the bearing is arranged in the through cavity in the fixed circular truncated cone; the bottom of the rotating shaft is also in threaded connection with a locking nut; the locking nut is positioned at the bottom end of the fixed round platform.

3. The drilling and indexing device of claim 1, wherein the bottom of the fixed circular truncated cone is further connected with a fixed base; the fixed base is connected with the fixed round table through a fixed bolt.

4. The apparatus according to claim 1, wherein the upper rotary plate is provided with a receiving slot for mounting a workpiece; the top of the upper turntable is connected with a drill bushing for positioning the top of the workpiece; a plurality of round holes are formed in the drill bushing; the upper turntable is also movably provided with a lifting sleeve, a cam shaft for jacking the lifting sleeve is arranged below the lifting sleeve, and the cam shaft is rotationally connected with the upper turntable; one end of the cam shaft is connected with a cam handle.

5. A drill indexing device according to claim 4, wherein the lifting sleeve is threadedly connected to a lifting table for supporting the bottom end of the workpiece.

6. The apparatus according to claim 4, wherein a support stop is further disposed in the receiving groove; the supporting stop block is connected with the upper rotating disc through a fastening bolt.

7. The apparatus according to claim 4, wherein the drill sleeve has a positioning groove at the bottom for engaging with the top of the workpiece.

8. The drilling indexing device of claim 4, wherein the upper rotary plate is provided with a slide hole, and the lifting sleeve is slidably arranged in the slide hole.

9. The drill indexing device of claim 1, wherein the locating pin has a blind bore in which one end of the spring is located.