CN210254405U

CN210254405U - Drill bit capable of spraying water to cool and replace cutter head

Info

Publication number: CN210254405U
Application number: CN201921215540.6U
Authority: CN
Inventors: 孔祥龙; 孔祥九
Original assignee: Huainan Lisheng Industry And Trade Co ltd
Current assignee: Huainan Lisheng Industry And Trade Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-04-07
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a drill bit capable of spraying water to cool and replace a tool bit, which comprises a drill bit body, a connecting shaft and a fixed seat; the utility model discloses a fixing base that is equipped with makes the drill bit pass through the recess and the guiding hole in the connecting axle to drill bit body inside transport cooling water through conveyer pipe and delivery hole in the fixing base after the high-speed drilling operation, make drill bit body and work piece can realize the treatment effect of effectual inside cooling down by the parts of cutting, and then the effectual part of having avoided the work piece to be cut can effectually avoid the user by the condition of scald when dropping or even splashing thereby the effectual risk of avoiding the user to be scalded, and can realize the circumstances that the location can also further reduce the friction when realizing the location through the intra-annular ball of location when making the fixing base deflect on the connecting axle through the fastening nut who is equipped with thereby the effectual circumstances of having avoided because of the coefficient of friction promotion that rises and produce.

Description

Drill bit capable of spraying water to cool and replace cutter head

Technical Field

The utility model relates to a drill bit technical field specifically is a drill bit of tool bit is changed in cooling of can spraying water.

Background

The core bit is also called a hollow bit, and is mainly a tool for drilling products such as steel plates, and the hollow bit is matched with a machine special for installing the core bit, and has the characteristics of high efficiency and low cost, the blade part of the core bit is made of hard alloy, the core bit has three-layer end tooth geometry, the cutting is light and fast, the service life of the steel plate bit is long, a double-cutting flat handle interface is suitable for various drilling machines, the hard alloy bit is also suitable for various vertical drilling machines, radial drilling machines, milling machines, lathes and the like, the bit is easy to deform when drilling and processing at high speed and under high temperature, so that the processing technology of the workpiece is reduced, the purpose of reducing the temperature when the workpiece is processed under high temperature can be effectively solved by a water spraying mode, but the cooling treatment of the bit in actual use in the prior art is not perfect, for example:

the drill bit among the prior art can't make the inside of drilling and the part that the work piece was cut realize effectual water-cooling's treatment effect when implementing the drilling processing operation to the work piece for the condition of scalding very easily appears when the work piece part that is cut flows or drops and takes place to splash, has very big potential safety hazard so can't satisfy prior art needs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but drill bit of tool bit is changed in cooling of spraying water to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a drill bit of tool bit is changed in cooling of can spraying water, includes drill bit body, connecting axle and fixing base, the welding of drill bit body lower surface edge has the brill tooth, the through-hole has been seted up at drill bit body upper surface middle part, the welding of drill bit body upper surface middle part has the connecting axle, connecting axle lower surface middle part is seted up flutedly, the recess inner wall is close to top department all around and has seted up the guiding hole, the fixing base has been cup jointed at the peripheral middle part of connecting axle, the peripheral equal threaded connection of connecting axle of fixing base both sides has fastening nut, the fixing base upper surface is close to the edge all around and has all seted up the delivery port, delivery port one end with the guiding hole is located the coplanar, delivery port inner wall one end threaded connection has.

Preferably, the drill bit body is U-shaped, the drill teeth are quadrangular frustum pyramid shaped, the through hole is circular truncated cone shaped, the axial line of the groove and the axial line of the through hole are positioned on the same straight line, and the groove and the through hole are communicated with each other.

Preferably, the top end of the groove is arc-shaped, one end of the guide hole penetrates through the connecting shaft, and the fastening nut is used as a positioning device of the fixing seat on the periphery of the connecting shaft.

Preferably, positioning rings are sleeved on the peripheries of the two sides of the fixing seat and the connecting shaft between the two fastening nuts, the adjacent surfaces of the two positioning rings are respectively connected with a ball in a rolling manner, one end of the ball is connected with the fixing seat in a rolling manner, and the fastening nuts are used as limiting devices of the positioning rings.

Preferably, the delivery port is the L type, the fixing base is the annular, delivery port one end is located fixing base inner wall middle part, delivery port aperture size with guiding hole aperture size is the same.

Preferably, the conveying hole inner wall is close to one end department and passes through bolt fixedly connected with filter screen, the peripheral threaded connection of conveyer pipe of fixing base upper surface has the sealing member, the connecting axle is used for the connection fixing device as the drill bit body.

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

the utility model can effectively connect the drill bit body with the driving device through the connecting shaft, and simultaneously can enable the fixing seat and the drill bit to rotate freely, so that the drill bit can effectively convey cooling water to the interior of the drill bit body through the conveying pipe and the conveying hole in the fixing seat and the groove and the guide hole in the connecting shaft after high-speed drilling operation, and the effective treatment effect of internal cooling and cooling can be realized between the drill bit body and the part of the workpiece to be cut, thereby effectively avoiding the situation that the user is scalded when the part of the workpiece to be cut falls down or even splashes, effectively avoiding the risk that the user is scalded, and further reducing friction when the fixing seat deflects on the connecting shaft through the ball in the positioning ring, thereby effectively avoiding the situation that the power consumption is increased due to the increase of the friction coefficient, thereby further making up for the deficiencies in the prior art.

Drawings

FIG. 1 is a schematic view of the whole half-section structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic view of the bottom view structure of the present invention;

fig. 4 is a schematic view of the top view structure of the present invention.

In the figure: 1-a drill bit body; 11-drilling teeth; 12-a through hole; 2-a connecting shaft; 21-a groove; 22-a pilot hole; 23-a positioning ring; 24-a ball bearing; 25-a fastening nut; 3-fixing the base; 31-a delivery orifice; 32-a filter screen; 33-a delivery pipe; 34-a seal; 35-one-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a drill bit capable of spraying water for cooling and replacing a tool bit comprises a drill bit body 1, a connecting shaft 2 and a fixing seat 3, wherein drill teeth 11 are welded at the edge of the lower surface of the drill bit body 1, the drill teeth 11 are in a quadrangular frustum shape, the drill bit body 1 is in a U shape, a through hole 12 is formed in the middle of the upper surface of the drill bit body 1, the through hole 12 is in a circular frustum shape, the connecting shaft 2 is welded in the middle of the upper surface of the drill bit body 1, the connecting shaft 2 is used as a connecting and fixing device of the drill bit body 1, a groove 21 is formed in the middle of the lower surface of the connecting shaft 2, the top end of the groove 21 is in an arc shape, the axial lead of the groove 21 and the axial lead of the through hole 12 are located on the same straight line, the groove 21 and the through hole 12 are communicated with each other, guide holes 22 are formed in the periphery of, the fixing seat 3 is annular, the periphery of the connecting shaft 2 at two sides of the fixing seat 3 is in threaded connection with fastening nuts 25, the fastening nuts 25 are used as positioning devices of the fixing seat 3 at the periphery of the connecting shaft 2, so that the fixing seat 3 can be effectively limited on the connecting shaft 2, the conveying holes 31 are aligned with the guide holes 22, water circulation is facilitated, the periphery of the connecting shaft 2 between two sides of the fixing seat 3 and two fastening nuts 25 is sleeved with positioning rings 23, the adjacent surfaces of the two positioning rings 23 are in rolling connection with balls 24, one end of each ball 24 is in rolling connection with the fixing seat 3, so that when the fixing seat 3 and the connecting shaft 2 deflect, the positioning effect can be effectively realized, meanwhile, the friction force is greatly reduced, the energy consumption is reduced, the fastening nuts 25 are used as limiting devices of the positioning rings 23, the conveying holes 31 are formed near the periphery of the upper surface, the inner wall of the conveying hole 31 is close to one end and is fixedly connected with a filter screen 32 through a bolt so that impurities inside the drill bit body 1 can achieve a filtering effect, the conveying hole 31 is L-shaped, one end of the conveying hole 31 and the guide hole 22 are located on the same plane, one end of the conveying hole 31 is located in the middle of the inner wall of the fixing seat 3, so that the conveying hole 31 can effectively convey water into the connecting shaft 2 and further convey the water into the drill bit body 1, the aperture size of the conveying hole 31 is the same as that of the guide hole 22, one end of the inner wall of the conveying hole 31 is in threaded connection with a conveying pipe 33, inflow of the water can be effectively received through the conveying pipe 33, the peripheral threaded connection of the conveying pipe 33 on the upper surface of the fixing seat 3 is provided with a sealing element 34 for further sealing between the fixing seat 3 and the conveying pipe 33, and the, check valve 35 and external power source electricity signal connection, effectual control water only can carry out one-way transport and make the water get into to realize cooling treatment in the drill bit body 1.

The working principle is as follows: when the drill bit is used, the drill bit body 1 is fixedly connected with the driving device through the connecting shaft 2, so that the drill bit body 1 can effectively realize drill bit operation through the driving device, the fixing seat 3 arranged on the periphery of the connecting shaft 2 is limited, the position of the positioning ring 23 driving the ball 24 on the connecting shaft 2 is limited through the fastening nut 25, the fixing seat 3 can effectively reduce the friction between the fixing seat 3 and the connecting shaft 2 while realizing the limit through the ball 24, and the four conveying holes 31 and the guide holes 22 on the fixing seat 3 can be further positioned on the same plane, so that a user can limit the flowing direction of a water body through the check valve 35 when conveying cooling water into the fixing seat 3 through the conveying pipe 33, and the cooling water can be effectively conveyed into the drill bit body 1 through the conveying pipe 33, the conveying holes 31, the guide holes 22, the grooves 21 and the through holes 12, thereby make drill bit body 1 can carry out effectual water spray cooling when realizing the rotation of deceleration through drive arrangement can.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a but drill bit of cutter head is changed in cooling of spraying water, includes drill bit body (1), connecting axle (2) and fixing base (3), its characterized in that: the drill bit is characterized in that drill teeth (11) are welded at the edge of the lower surface of the drill bit body (1), a through hole (12) is formed in the middle of the upper surface of the drill bit body (1), a connecting shaft (2) is welded at the middle of the upper surface of the drill bit body (1), a groove (21) is formed in the middle of the lower surface of the connecting shaft (2), guide holes (22) are formed in the positions, close to the top end, of the inner wall of the groove (21), a fixing seat (3) is sleeved in the middle of the periphery of the connecting shaft (2), fastening nuts (25) are connected to the periphery of the connecting shaft (2) on the two sides of the fixing seat (3) in a threaded mode, conveying holes (31) are formed in the positions, close to the edge, of the periphery of the upper surface of the fixing seat (3), the periphery of the conveying pipe (33) is close to the fixed seat (3) and is fixedly connected with a one-way valve (35) through a bolt and a flange.

2. The drill bit with the replaceable cutter head capable of being cooled by spraying water according to claim 1, wherein: the drill bit body (1) is U-shaped, the drill teeth (11) are quadrangular frustum-shaped, the through holes (12) are circular frustum-shaped, the axial lead of the groove (21) and the axial lead of the through holes (12) are positioned on the same straight line, and the groove (21) and the through holes (12) are mutually communicated.

3. The drill bit with the replaceable cutter head capable of being cooled by spraying water according to claim 1, wherein: recess (21) top is the circular arc type, guiding hole (22) one end runs through connecting axle (2), fastening nut (25) are used for as fixing base (3) at connecting axle (2) outlying positioner.

4. The drill bit with the replaceable cutter head capable of being cooled by spraying water according to claim 1, wherein: positioning rings (23) are sleeved on the peripheries of the two sides of the fixing seat (3) and the connecting shaft (2) between the two fastening nuts (25), the adjacent surfaces of the two positioning rings (23) are connected with balls (24) in a rolling mode, one end of each ball (24) is connected with the fixing seat (3) in a rolling mode, and the fastening nuts (25) are used as limiting devices of the positioning rings (23).

5. The drill bit with the replaceable cutter head capable of being cooled by spraying water according to claim 1, wherein: delivery port (31) are the L type, fixing base (3) are the annular, delivery port (31) one end is located fixing base (3) inner wall middle part, delivery port (31) aperture size with guiding hole (22) aperture size is the same.

6. The drill bit with the replaceable cutter head capable of being cooled by spraying water according to claim 1, wherein: the drill bit is characterized in that the inner wall of the conveying hole (31) is close to one end and is fixedly connected with a filter screen (32) through a bolt, the periphery of the conveying pipe (33) on the upper surface of the fixing seat (3) is in threaded connection with a sealing element (34), and the connecting shaft (2) is used as a connecting and fixing device of the drill bit body (1).