Double-edge inner-cooling chambering forming cutter

Abstract

The utility model discloses a double-edge inner-cooling chambering forming cutter which comprises a double-edge forming cutter outer column and an inner connecting column arranged on the side face of the double-edge forming cutter outer column. A rotary drum inner pipe is arranged in the outer cooling connecting rotary drum and divided into two halves, a flow inlet and a flow outlet are formed in the two ends of the rotary drum inner pipe respectively, the outer cooling connecting rotary drum is connected with an inner connecting column in a sleeved mode, and the outer cooling connecting rotary drum and the inner connecting column can rotate relative to each other. Cold fluid injected into the flow inlet flows along the inner tube of the rotary drum, flows through all the external cooling connecting rotary drums and flows out of the flow outlet, and the fluid flows along the inner tube of the rotary drum to take away heat of the external cooling connecting rotary drums. Therefore, the problems that the strength of the double-edge inner-cooling chambering forming cutter is easily reduced, the drilling quality is influenced, the manufacturing cost is increased and the like due to the fact that the heat cannot be dissipated in time are effectively avoided, and the use practicability of the double-edge inner-cooling chambering forming cutter is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to double-edged internally cooled hole expanding and forming knives, and in particular relates to a double-edged internally cooled hole expanding and forming knife. Background Art

[0002] A double-edged reamer is a drilling tool with two cutting edges, which is usually used for reaming or drilling operations. The double-edged reamer has two cutting edges, which makes it possible to cut in two directions at the same time, thereby improving cutting efficiency. In addition, the design of the double-edged reamer makes it more stable during the cutting process, reduces vibration and deviation during the cutting process, and is widely used in various drilling and reaming operations, such as construction, machinery, furniture and decoration, etc. It can be used for cutting different materials such as metal, wood, and plastic. However, when the double-edged reamer is turning holes, mechanical friction will be generated due to the turning of holes, which will cause a large amount of heat to exist in the double-edged internally cooled reaming forming knife. The heat cannot be dissipated in time, which can easily lead to a reduction in the strength of the double-edged internally cooled reaming forming knife, affecting the drilling quality and increasing the manufacturing cost. The utility model is aimed at the above-mentioned problems and specifically relates to a double-edged internally cooled reaming forming knife that can accelerate heat dissipation. Utility Model Content

[0003] The purpose of the utility model is to provide a double-edged internally cooled hole reaming tool to solve the problems proposed in the above background technology that when the double-edged hole reaming tool is drilling, mechanical friction will be generated due to the drilling, which will cause a large amount of heat to exist in the double-edged internally cooled hole reaming tool. If the heat cannot be dissipated in time, it will easily lead to a decrease in the strength of the double-edged internally cooled hole reaming tool, affecting the drilling quality and increasing the manufacturing cost.

[0004] To achieve the above object, the utility model provides the following technical solutions: a double-edged internally cooled hole expanding forming knife, comprising a double-edged forming knife outer column and an inner connecting column arranged at the side of the double-edged forming knife outer column;

[0005] An external cooling connection rotor is arranged at the outer side of the inner connecting column, and a rotor inner tube is arranged at the inner side of the external cooling connection rotor. The rotor inner tube is divided into two halves, and each half is tortuously winding. An inlet and the outlet are respectively arranged at the two ends of the rotor inner tube. The external cooling connection rotor is sleeved with the inner connecting column, and the two can perform relative rotation. After the cold fluid is injected into the inlet, it will flow along the rotor inner tube, flow through all the external cooling connection rotors, and flow out from the outlet.

[0006] Preferably, a fluid connection outer column is provided at an outer position of the inlet and the outlet near the upper end, a groove is provided on the inner side surface of the fluid connection outer column, and the fluid connection outer column, the inlet and the outlet are an integrated structure.

[0007] Preferably, the outer side of the middle position between the inlet and the outlet is a threaded structure, and a rotating extrusion knob is provided on the outer side of the thread, and the outer side of the rotating extrusion knob is provided with vertical lines.

[0008] Preferably, a telescopic inflatable body is provided at the side end of the rotating extrusion knob, and the telescopic inflatable body is a layered compressible structure.

[0009] Preferably, an extruded rubber airbag is provided at the outer side surface of the inlet and the outlet near the upper end, and the extruded rubber airbag is interconnected with the telescopic inflatable body.

[0010] Preferably, a connecting and mounting stud is provided at the right end position of the outer column of the double-edged forming knife, and the outer side surface of the connecting and mounting stud is a threaded structure.

[0011] Preferably, a forming blade column is provided at the end position of the inner connecting column, and a first blade and a second blade that are bent and wound are respectively provided on the outer side of the forming blade column.

[0012] Compared with the prior art, the utility model provides a double-edged internally cooled hole expansion forming knife, which has the following beneficial effects:

[0013] 1. In the double-edged internally cooled hole-expanding and forming knife, an externally cooled connecting drum is arranged at the outer side of the internally cooled connecting drum, and a rotating drum inner tube is arranged at the inner side of the externally cooled connecting drum, the rotating drum inner tube is divided into two halves, and each half is tortuously winding, and an inlet and an outlet are respectively arranged at the two end positions of the rotating drum inner tube, the externally cooled connecting drum is sleeved with the internally cooled connecting drum, and the two can perform relative rotation movement, and after the cold fluid is injected into the inlet, it will flow along the rotating drum inner tube, flow through all the externally cooled connecting drums, and flow out from the outlet, and the fluid flowing along the rotating drum inner tube will take away the heat of the externally cooled connecting drum, so that the heat at the position of the internally cooled connecting drum is dissipated in time, and the heat at the position of the forming knife column can be timely transferred for rapid heat dissipation, thereby effectively avoiding the problem that the heat cannot be dissipated in time, which can easily lead to the reduction of the strength of the double-edged internally cooled hole-expanding and forming knife, affect the drilling quality and increase the manufacturing cost, thereby improving the practicality of the double-edged internally cooled hole-expanding and forming knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the double-edged internally cooled hole expanding and forming knife of the utility model.

[0015] Figure 2 It is a schematic diagram of the enlarged structure of the double-edged internally-cooled hole-expanding and forming knife at the inlet position of the utility model.

[0016] Figure 3It is a schematic diagram of the cross-sectional structure of the double-edged internally-cooled hole-expanding and forming knife of the utility model at the position where the externally-cooled rotary drum is connected.

[0017] In the figure: 1. Double-edged forming knife outer column; 2. Connecting mounting stud; 3. Forming knife column; 4. First blade; 5. Second blade; 6. Inlet; 7. Outlet; 8. External cooling connection drum; 9. Extrusion rubber airbag; 10. Fluid connection outer column; 11. Turning extrusion knob; 12. Telescopic inflatable body; 13. Inner tube of drum; 14. Inner connecting column. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3 As shown, a double-edged internally cooled hole-expanding forming knife comprises a double-edged forming knife outer column 1 and an internal connecting column 14 arranged at the side position of the double-edged forming knife outer column 1; an externally cooled connecting rotating cylinder 8 is arranged at the outer position of the internal connecting column 14, and a rotating cylinder inner tube 13 is arranged at the inner position of the externally cooled connecting rotating cylinder 8, the rotating cylinder inner tube 13 is divided into two halves, and each half is tortuously winding, and an inlet 6 and an outlet 7 are arranged at the two ends of the rotating cylinder inner tube 13, respectively, the externally cooled connecting rotating cylinder 8 is sleeved with the internal connecting column 14, and the two can perform relative rotational movement, and after the cold fluid is injected into the inlet 6, The fluid flows along the inner tube 13 of the drum, flows through all the externally cooled connecting drums 8, and flows out from the outlet 7. The fluid flowing along the inner tube 13 of the drum will take away the heat of the externally cooled connecting drum 8, so that the heat at the position of the internal connecting column 14 is dissipated in time, and the heat at the position of the forming knife column 3 can be timely transferred for rapid heat dissipation, thereby effectively avoiding the problem that the heat cannot be dissipated in time, which can easily lead to the strength reduction of the double-edged internally cooled hole expansion forming knife, affect the drilling quality and increase the manufacturing cost, thereby improving the practicality of the double-edged internally cooled hole expansion forming knife.

[0020] like Figure 1As shown, a fluid connection outer column 10 is provided at the outer position of the inlet 6 and the outlet 7 near the upper end, and a groove is provided on the inner side surface of the fluid connection outer column 10. The fluid connection outer column 10, the inlet 6 and the outlet 7 are an integrated structure. The outer side of the middle position of the inlet 6 and the outlet 7 is a threaded structure, and a rotating squeeze knob 11 is provided on the threaded outer side surface. The outer side surface of the rotating squeeze knob 11 is provided with vertical lines. The setting of the fluid connection outer column 10 serves to limit the movement of the rotating squeeze knob 11, which can effectively prevent it from being detached. The vertical lines provided on the outer side surface of the rotating squeeze knob 11 can increase the friction between the user's hand. When the user rotates, the vertical lines can reduce the relative sliding between the hand and the rotating squeeze knob 11, so that the rotating squeeze knob 11 can be twisted more labor-saving.

[0021] like Figure 2 As shown, a telescopic inflatable gas 12 is arranged at the side end position of the rotating extrusion knob 11, and the telescopic inflatable gas 12 is a layered compressible structure. An extrusion rubber airbag 9 is arranged at the outer side position near the upper end of the inlet 6 and the outlet 7. The extrusion rubber airbag 9 is interconnected with the telescopic inflatable gas. The telescopic inflatable gas 12 is compressed and inflated, and extended outward to inhale. The inside of the extrusion rubber airbag 9 can be inflated by rotating the extrusion knob 11. The inflated extrusion rubber airbag 9 will expand and extrude the fluid to connect to the groove position set on the inner side of the outer column 10, and the external hose will be squeezed into the groove by the extrusion rubber airbag 9 and firmly fixed.

[0022] like Figure 2 As shown, a connecting and mounting stud 2 is provided at the right end position of the outer column 1 of the double-edged forming knife. The outer side surface of the connecting and mounting stud 2 is a threaded structure. The setting of the connecting and mounting stud 2 can increase its roughness. The user can install the connecting and mounting stud 2 by rotating it with the machine or by squeezing the connecting and mounting stud 2 with screws.

[0023] like Figure 1 As shown, a forming tool column 3 is arranged at the end position of the inner connecting column 14, and a first blade 4 and a second blade 5 are respectively arranged on the outer side of the forming tool column 3, which are bent and wound. The two cutting edges of the double-edged reaming tool enable it to cut in two directions at the same time, thereby improving the cutting efficiency. In addition, the design of the double-edged reaming tool makes it more stable during the cutting process, reduces vibration and deviation during the cutting process, and the double-edged reaming tool is widely used in various drilling and reaming operations.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-edged internally cooled hole-expanding forming knife, comprising A double-edged forming knife outer column (1) and an inner connecting column (14) arranged at a side position of the double-edged forming knife outer column (1); Features: An external cooling connection drum (8) is arranged at the outer side of the internal connection column (14), and a drum inner tube (13) is arranged at the inner side of the external cooling connection drum (8). The drum inner tube (13) is divided into two halves, and each half is tortuously winding. An inlet (6) and an outlet (7) are respectively arranged at the two ends of the drum inner tube (13). The external cooling connection drum (8) is sleeved with the internal connection column (14), and the two can rotate relative to each other. After the cold fluid is injected into the inlet (6), it will flow along the drum inner tube (13), flow through the entire external cooling connection drum (8), and flow out from the outlet (7).

2. A double-edged internally cooled hole expanding and forming knife according to claim 1, characterized in that: A fluid connection outer column (10) is provided at an outer position of the inlet (6) and the outlet (7) near the upper end, and a groove is provided on the inner side surface of the fluid connection outer column (10). The fluid connection outer column (10) is an integrated structure with the inlet (6) and the outlet (7).

3. A double-edged internally cooled hole expanding and forming knife according to claim 1, characterized in that: The outer side of the middle position between the inlet (6) and the outlet (7) is a threaded structure, and a rotating extrusion knob (11) is provided on the outer side of the thread, and the outer side of the rotating extrusion knob (11) is provided with vertical lines.

4. A double-edged internally cooled hole expanding and forming knife according to claim 3, characterized in that: A telescopic inflatable body (12) is arranged at the side end of the rotating extrusion knob (11), and the telescopic inflatable body (12) is a layered compressible structure.

5. A double-edged internally cooled hole expanding and forming knife according to claim 4, characterized in that: An extruded rubber airbag (9) is provided at the outer side surface of the inlet (6) and the outlet (7) near the upper end, and the extruded rubber airbag (9) is interconnected with the telescopic inflatable body.

6. A double-edged internally cooled hole expanding and forming knife according to claim 1, characterized in that: A connecting and installing stud (2) is arranged at the right end position of the double-edged forming knife outer column (1), and the outer side surface of the connecting and installing stud (2) is a threaded structure.

7. A double-edged internally cooled hole expanding and forming knife according to claim 1, characterized in that: A shaped blade column (3) is arranged at the end position of the inner connecting column (14), and a first blade (4) and a second blade (5) which are bent and wound are respectively arranged on the outer side of the shaped blade column (3).

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