CN215033276U - Thickening die for drill rod in double-arm drill rod - Google Patents
Thickening die for drill rod in double-arm drill rod Download PDFInfo
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- CN215033276U CN215033276U CN202120688711.8U CN202120688711U CN215033276U CN 215033276 U CN215033276 U CN 215033276U CN 202120688711 U CN202120688711 U CN 202120688711U CN 215033276 U CN215033276 U CN 215033276U
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Abstract
The utility model relates to a drilling rod thickening field in both arms drilling rod, the thickening mould of drilling rod in both arms drilling rod specifically says so. The die comprises a die body, wherein the die body is provided with an upper die and a lower die, grooves are formed in the relative positions of the lower surface of the upper die and the upper surface of the lower die, and the grooves of the upper die and the grooves of the lower die are in butt joint to form a forming cavity. One end of the molding cavity is a clamping die section. The forming cavity is sequentially divided into a small-end thickening die and a large-end thickening die from one end close to the clamping die section to the other end. The thickening die has the advantages of low cost, high working efficiency and less consumed raw materials.
Description
Technical Field
The utility model relates to a drilling rod thickening field in both arms drilling rod, the thickening mould of drilling rod in both arms drilling rod specifically says so.
Background
The double-arm drill rod comprises an outer drill rod, an inner drill rod, a hexagonal sleeve, a spring cylindrical pin and the like. The inner drill rod is an indispensable component of the double-arm drill rod. The inner drill rod of the double-arm drill rod is made of raw materials through the steps of thickening and the like.
At present, a traditional thickening die of a drill rod in a double-arm drill rod is divided into a large-end thickening die and a small-end thickening die, and the large-end thickening die and the small-end thickening die are completely independent. The thickening method comprises the steps of firstly thickening one end of the raw material by using a small end thickening die, then detaching the small end thickening die, installing a large end thickening die, and then thickening the other end of the raw material. The traditional thickening die of the drill rod in the double-arm drill rod needs two independent dies, the number of the needed dies is large, and the cost is high. Moreover, the die needs to be disassembled and assembled in the thickening process, so that the time required in the whole thickening process is long, and the working efficiency is low. In addition, the traditional thickening die only thickens one end of a raw material pipe material, a forming step is omitted, the thickened large end of a semi-finished product needs to be close to the shape of the product through subsequent cutting scraps, the consumed raw materials are more, the time consumed by the subsequent cutting scraps is longer, and the working efficiency is further reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a thickening mould of drilling rod in both arms drilling rod, the cost that adopts this thickening mould is lower, and work efficiency is higher, and the raw and other materials of consumption are less.
In order to solve the problems, the following technical scheme is provided:
the utility model discloses a thickening mould of drilling rod in both arms drilling rod includes the mould body, and this mould body has last mould and lower mould, and the relative position department of the lower surface of going up the mould and the upper surface of lower mould all is fluted, goes up the recess of mould and the recess butt joint of lower mould and forms into the die cavity. One end of the molding cavity is a clamping die section. The forming cavity is sequentially divided into a small-end thickening die and a large-end thickening die from one end close to the clamping die section to the other end. The tip thickened die is divided into a tip forming transition section, a tip thickened section and a tip compression section from one end close to the clamping die section to the other end in sequence, the inner diameter of the tip thickened section is larger than that of the tip forming transition section and the tip compression section, and the tip thickened section and the tip forming transition section and the tip compression section are in inclined surface transition. Big end thickening mould divide into main aspects thickening shaping section, main aspects thickening section, main aspects compression section and location section from the one end that is close to tip compression section in proper order to the other end, and the internal diameter of main aspects thickening shaping section is greater than the internal diameter of tip compression section and main aspects thickening section, and all is the inclined plane transition between main aspects thickening shaping section and tip compression section, main aspects thickening shaping section and the main aspects thickening section.
The inner diameter of the clamping die section is smaller than that of the small end forming transition section, the inner diameter of the small end forming transition section is equal to that of the small end compression amount section, the inner diameter of the small end compression amount section is smaller than that of the large end thickening section, and the inner diameter of the large end thickening section is equal to that of the large end compression amount section and that of the positioning section.
And a clamping forming transition section is arranged between the clamping die section and the small end forming transition section, and the inner diameter of the clamping forming transition section is larger than that of the small end forming transition section.
By adopting the scheme, the method has the following advantages:
because the forming cavity of the thickening die of the drill rod in the double-arm drill rod of the utility model is sequentially divided into the small end thickening die and the big end thickening die from one end to the other end which is close to the clamping die section, the small end thickening die is sequentially divided into the small end forming transition section, the small end thickening section and the small end compression section from one end to the other end which is close to the clamping die section, the inner diameter of the small end thickening section is larger than that of the small end forming transition section and the small end compression section, the small end thickening section and the small end forming transition section, and the small end thickening section and the small end compression amount section are in inclined transition, the large end thickening mold is sequentially divided into a large end thickening forming section, a large end thickening section, a large end compression amount section and a positioning section from one end close to the small end compression amount section to the other end, the inner diameter of the large end thickening forming section is larger than that of the small end compression amount section and the large end thickening section, and the large end thickening forming section and the small end compression amount section as well as the large end thickening forming section and the large end thickening section are in inclined transition. The large and small end thickening dies of the thickening die are staggered in the same auxiliary die, and the thickening work at two ends can be completed by adopting one auxiliary die, so that fewer dies are needed, and the die cost is lower. Moreover, the thickening of the two ends can be completed by adopting one set of die, so that the die does not need to be disassembled and assembled in the thickening process, the non-production time of disassembling and assembling the die is eliminated, and the working efficiency of thickening is improved. Meanwhile, the thickened blank large end can be closer to the shape of a product by thickening the large end and forming the section, so that cutting chips are not needed, the working time of cutting and machining is reduced, and the working efficiency is further improved.
Drawings
FIG. 1 is a schematic structural view of a thickening mold for a drill rod in a dual-arm drill rod of the present invention;
FIG. 2 is a dimensional view of a drill rod blank in an AT30 embodiment;
FIG. 3 is a dimensional diagram of a tube stock in an embodiment;
FIG. 4 is a dimensional diagram of a thickening die in a particular embodiment;
FIG. 5 is a diagram of the positioning dimensions of the thickening die and the pipe material when the small end is thickened in the embodiment;
FIG. 6 is a heated dimension graph of a thickening die with small ends thickened according to an embodiment;
FIG. 7 is a dimensional view of a small end punch according to an embodiment;
FIG. 8 is a dimension view of the tube stock after upset forging of the small end punch with the small end thickened in the preferred embodiment;
FIG. 9 is a dimensional graph of half cost after tip thickening in a particular embodiment;
FIG. 10 is a diagram of the positioning dimensions of the thickening mold and the semi-finished product when the big end is thickened in the embodiment;
FIG. 11 is a heated dimension graph of a thickening die with large ends thickened according to an embodiment;
FIG. 12 is a dimensional view of a large end punch according to an embodiment;
FIG. 13 is a dimension drawing of the blank after upset forging of the large end punch with the large end thickened in the embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses a thickening mould of drilling rod in both arms drilling rod includes the mould body, and this mould body has last mould 1 and lower mould 2, and the relative position department of the lower surface of last mould 1 and the upper surface of lower mould 2 all is fluted, goes up the recess of mould 1 and forms into the die cavity with the recess butt joint of lower mould 2. One end of the molding cavity is a clamping mold section A. The molding cavity is sequentially divided into a small-end thickening mold and a large-end thickening mold from one end close to the clamping mold section A to the other end. The tip thickened die is divided into a tip forming transition section C, a tip thickened section D and a tip compression amount section E from one end close to the clamping die section A to the other end in sequence, the inner diameter of the tip thickened section D is larger than that of the tip forming transition section C and the tip compression amount section E, and inclined surface transition is formed between the tip thickened section D and the tip forming transition section C and between the tip thickened section D and the tip compression amount section E. Big end thickening mould divide into big end thickening shaping section F, big end thickening section G, big end compression section H and location section K from the one end that is close to tip compression section E to the other end in proper order, and the internal diameter of big end thickening shaping section F is greater than the internal diameter of tip compression section E and big end thickening section G, and all is the inclined plane transition between big end thickening shaping section F and tip compression section E, big end thickening shaping section F and big end thickening section G. The inner diameter of the clamping die section A is smaller than that of the small end forming transition section C, the inner diameter of the small end forming transition section C is equal to that of the small end compression amount section E, the inner diameter of the small end compression amount section E is smaller than that of the large end thickening section G, and the inner diameter of the large end thickening section G is equal to that of the large end compression amount section H and that of the positioning section K. And a clamping forming transition section B is arranged between the clamping die section A and the small end forming transition section C, and the inner diameter of the clamping forming transition section B is larger than that of the small end forming transition section C.
Use drill rod blank in AT30 as an example, use the utility model discloses a thickening mould of drill rod is processed in both arms drill rod, and concrete step is as follows:
first, preparation before thickening
The size of the drill rod blank in the AT30 is shown in FIG. 2, and a pipe material with the corresponding size is calculated and selected as a raw material according to the size of the drill rod blank in the AT30, wherein the length of the pipe material is 3102mm, and the outer diameter of the pipe material is 25.32mm, as shown in FIG. 3. Simultaneously, selecting a thickening die of the drill rod in the double-arm drill rod to ensure that the size of a forming cavity of the thickening die is consistent with the size of a blank of the drill rod in the double-arm drill rod to be prepared, wherein the length of a clamping die section A in the thickening die is 151.5mm, and the inner diameter of the clamping die section A is 24.5 mm; the length of the clamping and forming transition section B is 5mm, and the inner diameter is 34.5 mm; the length of the small end forming transition section C is 30mm, and the inner diameter is 25.87 mm; the length of the small end thickened section D is 57.1mm, and the inner diameter is 36.23 mm; the length of the bevel transition area of the small end thickening section D and the small end forming transition section C is 41.1 mm; the length of the small end compression section E is 75mm, and the inner diameter is 25.87 mm; the length of the transition region between the small end thickening section D and the small end compression amount section E is 10 mm; the length of the large-end thickened forming section F is 8.31mm, and the inner diameter is 44.09 mm; the length of the inclined plane transition area of the small end compression section E and the large end thickening forming section F is 28.03 mm; the length of the large-end thickened section G is 94.1mm, and the inner diameter is 36.23 mm; the length of the inclined plane transition area of the large end thickening molding section F and the large end thickening section G is 14.68 mm; the length of the large-end compression amount section H is 155mm, and the inner diameter is 36.23 mm; the length of the positioning section K is 30mm, and the inner diameter of the positioning section K is 36.23 mm; the overall length of the die was 700mm as shown in figure 4.
Second, thickening the small end
First, one end of the tube was heated to 1250 ℃ for a length of 210.5mm, as shown in FIG. 5.
Then, an upper die 1 and a lower die 2 of the thickening die are separated, raw materials are placed between the upper die 1 and the lower die 2 from a clamping die section A of the thickening die, and one end of the raw materials is located in an inclined plane transition area of a small-end compression amount section E and a large-end thickening forming section F of the thickening die.
Next, the upper die 1 and the lower die 2 of the thickening die were closed, and the clamping die segment a of the thickening die clamped and fixed the raw material at a positioning distance of 323mm as shown in fig. 6.
Then, after the small end thickening die of the thickening die is heated, the small end punch is stretched into the thickening die from the outer end of the thickening die positioning section K, upsetting is carried out on raw materials, and one end of the raw materials located in the thickening die is upset forged to the inclined plane transition region of the small end compression section E and the small end thickening section D from the inclined plane transition region of the small end compression section E and the large end thickening forming section F. The small end punch dimensions are shown in fig. 7. The reduction of the tube stock was 82mm as shown in FIG. 8.
Finally, the upper die 1 and the lower die 2 of the thickening die are separated, and the semi-finished product with thickened small end is taken out, wherein the size is shown in fig. 9.
Thirdly, thickening the big end
First, the other end of the tube was heated to 1250 ℃ for a length of 330mm as shown in FIG. 10.
Then, an upper die 1 and a lower die 2 of the thickening die are separated, one end of the semi-finished product which is far away from the small end and is thickened is placed between the upper die 1 and the lower die 2 from a clamping die section A of the thickening die, and the end of the semi-finished product is located at the connecting position of a large-end compression volume section H and a positioning section K of the thickening die.
Then, the upper die 1 and the lower die 2 of the thickening die are closed, and the clamping die section a of the thickening die clamps and fixes the semi-finished product at a positioning distance of 30mm, as shown in fig. 11.
Then, extending a large-end punch into the thickening die from the outer end of the positioning section K of the thickening die, upsetting the raw material, and upsetting one end of the raw material positioned in the thickening die from the joint of the large-end compression section H and the positioning section K to the joint of the large-end compression section H and the large-end thickening section G; the size of the large end punch is shown in fig. 12; the reduction of the semi-finished product was 155mm as shown in FIG. 13.
And finally, separating the upper die 1 and the lower die 2 of the thickening die to take out the drill rod blank in the double-arm drill rod with the thickened large end and the thickened small end.
The utility model discloses a staggered arrangement around thickening mould big or small end thickening mould in the thickening mould of drilling rod in both arms drilling rod adopts a pair mould can accomplish both ends thickening work, and the mould that needs is less, and the mould cost is lower. Adopt two pairs of moulds in the thickening method to drill rod blank in AT30 originally, tip mould net weight 70.5KG, tip mould net weight 120.8KG adopts the utility model discloses a thickening mould and the thickening method of drill rod in both arms drilling rod only need a pair mould, and mould net weight 94.5KG practices thrift mould material 97 KG. Moreover, the thickening of the two ends can be completed by adopting one set of die, so that the die does not need to be disassembled and assembled in the thickening process, the non-production time of disassembling and assembling the die is eliminated, and the working efficiency of thickening is improved. Meanwhile, the thickened blank large end is closer to the shape of a product by thickening the forming section F with the large end, no cutting scrap is needed, the working hours of cutting and processing are reduced, and the working efficiency is further improved. Originally the weight of raw and other materials is 12.3KG to the thickening method of drilling rod blank in AT30, adopts the utility model discloses a raw and other materials weight that thickening mould and thickening method of drilling rod were chosen in the both arms drilling rod is 11.9KG, practices thrift bar 0.4 KG.
Claims (3)
1. The thickening die for the drill rod in the double-arm drill rod comprises a die body, wherein the die body is provided with an upper die and a lower die, grooves are formed in the opposite positions of the lower surface of the upper die and the upper surface of the lower die, and the grooves of the upper die and the grooves of the lower die are butted to form a forming cavity; one end of the forming cavity is a clamping die section; the forming cavity is sequentially divided into a small-end thickening die and a large-end thickening die from one end close to the clamping die section to the other end; the small end thickening die is sequentially divided into a small end forming transition section, a small end thickening section and a small end compression amount section from one end close to the clamping die section to the other end, the inner diameter of the small end thickening section is larger than that of the small end forming transition section and the small end compression amount section, and the small end thickening section and the small end forming transition section, the small end thickening section and the small end compression amount section are in inclined surface transition; big end thickening mould divide into main aspects thickening shaping section, main aspects thickening section, main aspects compression section and location section from the one end that is close to tip compression section in proper order to the other end, and the internal diameter of main aspects thickening shaping section is greater than the internal diameter of tip compression section and main aspects thickening section, and all is the inclined plane transition between main aspects thickening shaping section and tip compression section, main aspects thickening shaping section and the main aspects thickening section.
2. The thickening mold for the inner drill rod of the double-arm drill rod as claimed in claim 1, wherein the inner diameter of the clamping mold section is smaller than that of the small end forming transition section, the inner diameter of the small end forming transition section is equal to that of the small end compression section, the inner diameter of the small end compression section is smaller than that of the large end thickening section, and the inner diameter of the large end thickening section is equal to that of the large end compression section and that of the positioning section.
3. A thickening die for a double-arm drill rod in a double-arm drill rod as claimed in claim 1 or 2, wherein a clamping forming transition section is arranged between the clamping die section and the small end forming transition section, and the inner diameter of the clamping forming transition section is larger than that of the small end forming transition section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120688711.8U CN215033276U (en) | 2021-04-06 | 2021-04-06 | Thickening die for drill rod in double-arm drill rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120688711.8U CN215033276U (en) | 2021-04-06 | 2021-04-06 | Thickening die for drill rod in double-arm drill rod |
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| CN215033276U true CN215033276U (en) | 2021-12-07 |
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| CN202120688711.8U Active CN215033276U (en) | 2021-04-06 | 2021-04-06 | Thickening die for drill rod in double-arm drill rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070438A (en) * | 2021-04-06 | 2021-07-06 | 江阴雷特斯钻具有限公司 | Thickening die and thickening method for drill rod in double-arm drill rod |
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2021
- 2021-04-06 CN CN202120688711.8U patent/CN215033276U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070438A (en) * | 2021-04-06 | 2021-07-06 | 江阴雷特斯钻具有限公司 | Thickening die and thickening method for drill rod in double-arm drill rod |
| CN113070438B (en) * | 2021-04-06 | 2024-06-18 | 江阴雷特斯钻具有限公司 | Thickening die and thickening method for drill rod in double-arm drill rod |
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