CN220993028U - Screw tap convenient to change - Google Patents
Screw tap convenient to change Download PDFInfo
- Publication number
- CN220993028U CN220993028U CN202323026773.0U CN202323026773U CN220993028U CN 220993028 U CN220993028 U CN 220993028U CN 202323026773 U CN202323026773 U CN 202323026773U CN 220993028 U CN220993028 U CN 220993028U
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- cone
- rod
- tap
- groove
- seted
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- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 210000003811 finger Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Table Equipment (AREA)
Abstract
The utility model provides a tap convenient to replace, belongs to the technical field of cutting tools, and solves the problems that all cutting parts of the tap need to be abandoned after being broken and replacement is troublesome. The utility model comprises a cone and a connecting part, wherein the connecting part is provided with a guide rod, a reinforcing block is arranged on the guide rod, the side surface of the connecting part is provided with a mounting groove, a compression spring is arranged in the mounting groove, the side surface of the mounting groove is provided with a connecting channel, a connecting rod is arranged in the connecting channel, two ends of the connecting rod are fixedly provided with a clamping block and a short rod, and the short rod is arranged in the mounting groove; the cone is provided with a guide hole, the cone is provided with an L-shaped clamping groove, and the clamping block and the connecting rod are clamped into the clamping groove; the connecting part is provided with a groove, and the cone is provided with a convex block. The utility model has the advantages that: the screw tap is divided into the cone and the connecting part, the cone and the connecting part are fixedly installed through the clamping block and the clamping groove, the clamping block can be controlled to be separated from the clamping groove by pressing the short rod, and the cone can be conveniently detached and replaced.
Description
Technical Field
The utility model belongs to the technical field of cutting tools, and relates to a tap, in particular to a tap convenient to replace.
Background
The screw tap is a common tool for machining internal threads, a groove, also called a screw tap, is formed along the axial direction, is commonly used in the occasion of machining the internal threads, and is almost the only machining tool when machining the internal threads of the small-diameter threaded holes.
When the straight-edge screw tap is used for processing an internal thread, the processing precision is high, but the machinability is poor, the use effort is large, the energy efficiency is low, and the screw tap is easy to break to cause the screw tap to be scrapped. The cone and the connecting part of the existing screw tap are installed into a whole, and the broken screw tap can only be scrapped together with the connecting part, so that the production cost is increased, and the waste of resources is increased; meanwhile, the screw tap is required to be placed in the power piece during installation, and then is manually fixed, so that the installation is inconvenient, and the working efficiency is reduced.
The screw tap comprises a screw body and a welding main body, wherein the screw body and the welding main body are fixedly connected through welding, four concave grooves are formed in the screw body from top to bottom, a plurality of screw threads are formed in the surface of the screw body, and an arc-shaped drill point is arranged at the bottom of the screw body.
The above patents have an optimizable space: the metal main body is welded and fixed with the screw body, the screw body is provided with a concave groove, and when the whole screw tap bears excessive load, the screw body with smaller cross section area can be broken, and the screw tap and the metal main body welded and fixed with the screw body are abandoned together.
Disclosure of utility model
The present utility model has been made keeping in mind the above problems occurring in the prior art, and an object of the present utility model is to provide a tap that facilitates the replacement of the tap cone.
The utility model can be realized by the following technical scheme: the utility model provides a screw tap convenient to change, includes connecting portion and cone, the connecting portion end is provided with the square tenon, cutting portion has been seted up on the cone, be provided with the guide bar on the connecting portion, the mounting groove has been seted up to the connecting portion side, connecting channel has been seted up to the mounting groove side, install the connecting rod in the connecting channel, the connecting rod end is fixed with the fixture block, the short rod is installed to the connecting rod anterior segment, the draw-in groove has been seted up on the cone, the draw-in groove is the L type, the guiding hole has been seted up to cone top surface centre of a circle department.
In the tap convenient to replace, a compression spring is arranged between the bottom of the mounting groove and the connecting rod.
In the tap convenient to replace, the depth of the guide hole does not reach the cutting part, and the reinforcing block is arranged outside the guide rod.
In the tap convenient to replace, the short rod is connected to the connecting rod through threads, and the buffering rubber is fixed on the short rod.
In the tap convenient to replace, the connecting part is provided with the groove, the cone is provided with the convex block, and the groove and the convex block are complementary in shape.
In the tap convenient to replace, the radiating hole is formed in the cone, the radiating channel is formed in the guide rod, and the tail end of the radiating channel is connected with the air outlet.
Compared with the prior art, the utility model has the advantages that: the screw tap is divided into a connecting part and a cone, the connecting part and the cone are fixedly connected through a clamping block, and the connecting part and the cone can be fixed and separated only by pressing a short rod; meanwhile, a heat dissipation channel is formed in the tap, so that heat generated during the working of part of the tap can be conveniently dissipated.
Drawings
FIG. 1 is a perspective view of a tap that facilitates replacement;
FIG. 2 is a cross-sectional view of a tap for ease of replacement;
FIG. 3 is an enlarged view within circle A of FIG. 2;
FIG. 4 is a bottom view of the connecting portion of the tap for ease of replacement;
FIG. 5 is a cross-sectional view of the connection portion of the tap for ease of replacement;
FIG. 6 is a perspective view of the cone of the tap that facilitates replacement;
Wherein, 1, the connecting part; 11. square tenons; 12. a guide rod; 121. a reinforcing block; 122. a heat dissipation channel; 13. a mounting groove; 14. a connection channel; 15. a groove; 16. an air outlet; 2. a cone; 21. a cutting portion; 22. a clamping groove; 23. a guide hole; 24. a bump; 25. a heat radiation hole; 3. a connecting rod; 31. a clamping block; 4. a short bar; 41. a buffer rubber; 5. compressing the spring.
Description of the embodiments
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 to 6, the present utility model can be realized by the following embodiments: the utility model provides a tap convenient to change, includes connecting portion 1 and cone 2, and connecting portion 1 end is provided with square tenon 11, has seted up cutting portion 21 on the cone 2.
Be provided with guide bar 12 on connecting portion 1, 2 mounting grooves 13 have been seted up to connecting portion 1 side, and connecting channel 14 has been seted up to every mounting groove 13 side, installs connecting rod 3 in the connecting channel 14, and connecting rod 3 end is fixed with fixture block 31, and short rod 4 is installed to connecting rod 3 anterior segment, has seted up draw-in groove 22 on the cone 2, and guide hole 23 has been seted up to cone 2 top surface centre of a circle department.
After the guide rod 12 stretches into the guide hole 23, the short rod 4 is pressed by the index finger and the thumb, so that the clamping block 31 on the connecting rod 3 can pass through the clamping groove 22, and then the short rod 4 is loosened, so that the clamping block 31 hooks the clamping groove 22, the installation of the connecting part 1 and the cone 2 is completed, the contact area between the connecting rod 3 and the cone 2 and the contact area between the clamping block 31 and the cone 2 are increased by the L-shaped clamping groove 22, and the connection between the cone 2 and the connecting part 1 is more stable.
As shown in fig. 2 and 3, a compression spring 5 is provided between the bottom of the mounting groove 13 and the engagement rod 3. The compression spring 5 is in a compressed state after being mounted in the mounting groove 13, so as to provide an elastic force for pushing the connecting rod 3 at any time, and simultaneously, after the clamping block 31 is clamped into the clamping groove 22 of the tap, the connecting rod 3 and the clamping block 31 are tightly attached to the clamping groove 22.
As shown in fig. 2 and 4, the depth of the guide hole 23 does not reach the cutting portion 21, and the guide rod 12 is provided with a reinforcing block 121. The depth of the guide hole 23 does not touch the cutting part 21, so that the small bearable load caused by the too small cross section area of the cutting part 21 is prevented, and meanwhile, the overlong guide rod 12 caused by the too deep depth is prevented, the deformation of the guide rod 12 is caused, and the installation of the cone 2 is inconvenient; the reinforcing block 121 provided on the guide rod 12 enhances the strength of the guide rod 12, and also increases the contact surface between the connecting portion 1 and the cone 2, thereby facilitating torque transmission.
As shown in fig. 2 and 3, the stub shaft 4 is screwed to the engagement shaft 3, and the buffer rubber 41 is fixed to the stub shaft 4. The short rod 4 is arranged on the connecting rod 3 in a threaded connection mode, so that the manufacturing difficulty of the connecting part 1 is reduced, the production is convenient, meanwhile, the buffer rubber 41 fixed on the short rod 4 reduces the pressure born by fingers of a user, and the discomfort during use is reduced.
As shown in fig. 1, 4 and 6, the connecting portion 1 is provided with a groove 15, the cone 2 is provided with a bump 24, and the groove 15 and the bump 24 are complementary in shape. The arrangement of the grooves 15 and the protrusions 24 is to improve the stability of the connection part 1 and the cone 2 and to transmit torque, thereby reducing the burden of the clamping block 31.
As shown in fig. 1, 2, 4 and 5, a heat dissipation hole 25 is formed in the cone 2, a heat dissipation channel 122 is formed in the guide rod 12, and the tail end of the heat dissipation channel 122 is connected with the air outlet 16. The heat dissipation holes 25 are arranged, so that the cone 2 can conveniently dissipate part of heat generated during working, and the whole internal and external air of the tap can keep circulating under the cooperation of the heat dissipation channel 122 and the air outlet 16, so that the heat dissipation is convenient; when the tap is broken, the file is used for cutting off the broken parts of the complete cone 2 at the radiating hole 25, so that the tap is convenient to clean.
The working principle of the utility model is as follows: when the cone 2 breaks or the cone 2 and the connecting piece need to be replaced, the index finger and the thumb press the short rod 4, the cone 2 is taken out, the short rod 4 is pressed again, the groove 15 and the projection 24 are aligned, the cone 2 is inserted into the connecting part 1 along the guide rod 12, the short rod 4 is loosened, the clamping block 31 and the connecting rod 3 are clamped into the clamping groove 22 under the action of the compression spring 5, and replacement is completed.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although various terms are used more herein, the use of other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (6)
1. The utility model provides a screw tap convenient to change, includes connecting portion (1) and cone (2), connecting portion (1) end is provided with square tenon (11), cutting portion (21) have been seted up on cone (2), its characterized in that: be provided with guide bar (12) on connecting portion (1), mounting groove (13) have been seted up to connecting portion (1) side, connecting channel (14) have been seted up to mounting groove (13) side, install connecting rod (3) in connecting channel (14), connecting rod (3) end is fixed with fixture block (31), connecting rod (3) anterior segment installs quarter butt (4), draw-in groove (22) have been seted up on cone (2), draw-in groove (22) are L type, guiding hole (23) have been seted up to cone (2) top surface centre of a circle department.
2. A tap convenient to replace according to claim 1, characterised in that a compression spring (5) is arranged between the bottom of the mounting groove (13) and the engagement rod (3).
3. A tap to be replaced according to claim 1, characterised in that the depth of the pilot hole (23) does not reach the cutting portion (21), and that the pilot rod (12) is provided with a reinforcing block (121) outside.
4. A tap to be replaced according to claim 1, characterised in that the stub rod (4) is screwed onto the engagement rod (3), and that the stub rod (4) is fixed with a buffer rubber (41).
5. A tap to be replaced according to claim 1, characterised in that the connecting portion (1) is provided with a recess (15) and the cone (2) is provided with a projection (24), the recess (15) and the projection (24) being complementary in shape.
6. The tap according to claim 1, wherein a heat dissipation hole (25) is formed in the cone (2), a heat dissipation channel (122) is formed in the guide rod (12), and an air outlet (16) is connected to the tail end of the heat dissipation channel (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323026773.0U CN220993028U (en) | 2023-11-09 | 2023-11-09 | Screw tap convenient to change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323026773.0U CN220993028U (en) | 2023-11-09 | 2023-11-09 | Screw tap convenient to change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220993028U true CN220993028U (en) | 2024-05-24 |
Family
ID=91121669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323026773.0U Active CN220993028U (en) | 2023-11-09 | 2023-11-09 | Screw tap convenient to change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220993028U (en) |
-
2023
- 2023-11-09 CN CN202323026773.0U patent/CN220993028U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |