CN114274254A - High-frequency drill and using method thereof - Google Patents
High-frequency drill and using method thereof Download PDFInfo
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- CN114274254A CN114274254A CN202111637402.9A CN202111637402A CN114274254A CN 114274254 A CN114274254 A CN 114274254A CN 202111637402 A CN202111637402 A CN 202111637402A CN 114274254 A CN114274254 A CN 114274254A
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- die body
- deslagging
- drilling
- pipe fitting
- hole
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- 238000000034 method Methods 0.000 title abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention relates to the field of hole forming equipment, in particular to a high-frequency drill and a using method thereof, wherein the high-frequency drill comprises a supporting frame, a production platform is arranged on the supporting frame, a drilling mechanism is arranged on the supporting frame, and a clamping die is arranged on the production platform; the drilling mechanism is arranged right above the clamping die; the invention discloses a high-frequency drill which can realize the tapping operation of a pipe fitting, and meanwhile, the residue retention in or out of the pipe fitting can be reduced through the arrangement of a slag removing mechanism, so that the residue on the pipe fitting is avoided.
Description
Technical Field
The invention relates to the field of hole opening equipment, in particular to a high-frequency drill and a using method thereof.
Background
The pipe fitting trompil is a process that present pipe fitting part often meets, and traditional pipe fitting trompil uses the milling machine to realize, because the trompil residue clearance is incomplete during traditional pipe fitting trompil, can cause the residue to block up pipe fitting inner passage, influences follow-up result of use, lacks cooling device during traditional trompil simultaneously, produces the deformation because of the friction in trompil department easily.
It is desirable to optimize the design of existing tapping devices to avoid the above problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a punching device for punching a pipe.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-frequency drill comprises a support frame, wherein a production platform is arranged on the support frame, a drilling mechanism is arranged on the support frame, and a clamping die is arranged on the production platform; the drilling mechanism is arranged right above the clamping mould.
The clamping die comprises a die body, and a placing through hole is formed in the die body; the upper end of the die body is provided with a drilling channel; the drilling channel is arranged along the longitudinal direction and communicated with the placing through hole.
The die body comprises an upper die body and a lower die body; the lower die body is arranged on the production platform; the upper die body is arranged at the upper end of the lower die body; the drilling channel is arranged on the upper die body; the placing through hole comprises an upper arc-shaped groove and a lower arc-shaped groove, the upper arc-shaped groove is formed in the upper die body, the lower arc-shaped groove is formed in the lower die body, and the upper arc-shaped groove and the lower arc-shaped groove are arranged oppositely.
The drilling mechanism comprises a drilling motor, and an output shaft of the drilling motor is connected with a hole drilling bit; the drilling motor is connected with a pushing hydraulic cylinder through a slideway mechanism; the slide rail mechanism comprises a slide rail arranged on the support frame, and the drilling motor is connected with the slide rail through a slide plate; the sliding plate is provided with a sliding block, the sliding block is provided with a sliding chute, and the sliding block is clamped on the sliding rail through the sliding chute; the pushing hydraulic cylinder is connected with the sliding plate; the pushing hydraulic cylinder is arranged in the longitudinal direction.
The die body is provided with a deslagging mechanism, the deslagging mechanism comprises an internal deslagging mechanism, and the internal deslagging mechanism is connected with a pipe fitting to be processed; the internal deslagging mechanism comprises an air supply pipeline which is connected with the end part of the pipe fitting to be processed; the gas supply pipeline is connected with a gas supply part.
The internal deslagging mechanism further comprises an internal connection dust collector, and the internal connection dust collector is connected with one end, far away from the air supply pipeline, of the pipe fitting to be processed.
The deslagging mechanism comprises an external deslagging mechanism, the external deslagging mechanism comprises a deslagging channel arranged on the die body, and the deslagging channel is positioned above the placing through hole; the drilling channel, the placing through hole and the deslagging channel are communicated with each other; the deslagging channel is connected with a supply pipeline, and the supply pipeline is connected with an air supply part; one end of the deslagging channel, which is far away from the supply pipeline, is provided with an external collecting part.
The deslagging channel is partially intersected with the placing through hole.
The liquid supply mechanism comprises a communicating pipeline connected with the supply pipeline, and the communicating pipeline is connected with a liquid supply part.
A method of using a high frequency drill, the method of using comprising the steps of:
step 1: placing a pipe fitting to be processed in the placing through hole of the die body, and locking the upper die body and the lower die body;
step 2: after step 1 is finished, starting a deslagging mechanism;
and step 3: after the step 2 is finished, starting the drilling mechanism to enable a drill bit in the drilling mechanism to penetrate through the die body to perform hole opening operation on the pipe fitting to be processed in the die body;
and 4, step 4: after the step 3 is finished, retracting the drilling mechanism to enable a drill bit in the drilling mechanism to be separated from the die body, and closing the slag removing mechanism after the die body is separated;
and 5: and (4) after the step (4) is finished, opening the die, taking out the processed pipe fitting, finishing the hole opening operation of one pipe fitting, and repeating the steps (1) to (4) if other hole opening operations of the pipe fitting need to be repeated.
The invention has the advantages that;
the invention discloses a high-frequency drill which can realize the tapping operation of a pipe fitting, and meanwhile, the residue retention in or out of the pipe fitting can be reduced through the arrangement of a slag removing mechanism, so that the residue on the pipe fitting is avoided.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural view of a mold body according to the present invention.
FIG. 3 is a sectional view of the mold body in the present invention.
FIG. 4 is a schematic view of the internal deslagging mechanism of the present invention in connection with a pipe to be processed.
The labels in the above figures are:
1. support frame, 2, production platform, 3, centre gripping mould, 4, drilling mechanism.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
A high-frequency drill comprises a support frame 1, wherein a production platform 2 is arranged on the support frame 1, a drilling mechanism 4 is arranged on the support frame 1, and a clamping die 3 is arranged on the production platform 2; the drilling mechanism 4 is arranged right above the clamping mould 3; the invention discloses a high-frequency drill, which can well realize the tapping operation of a pipe fitting, and particularly discloses a clamping mould 3, wherein a clamping module is used for placing the pipe fitting, a support frame 1 and a production platform 2 are processing support structures, so that the arrangement of a drilling mechanism 4 and the clamping mould 3 is facilitated, a counterweight function is also realized, and the main purpose is to ensure the stability of the high-frequency drill during working; the drilling mechanism 4 main part is still the drill bit and adds the motor structure, and the drill bit rotates under the drive of motor, realizes the trompil operation to the pipe fitting then.
Further, in the present invention, the clamping mold 3 includes a mold body, and the mold body is provided with a placing through hole 34; the upper end of the die body is provided with a drilling channel 321; the drilling passage 321 is arranged along the longitudinal direction, and the drilling passage 321 is communicated with the placing through hole 34; the arrangement of placing the through hole 34 facilitates the mode of the pipe fitting in the die body, the drilling channel 321 plays a good avoiding role, and the drill bit can conveniently penetrate through the die body to open the hole of the pipe fitting placed in the through hole 34.
Further, in the present invention, the mold body includes an upper mold body 32 and a lower mold body 31; the die body is made into a split structure, so that the pipe fitting can be conveniently placed in the die body; in addition, in the present invention, the lower mold body 31 is disposed on the production platform 2; typically fixed connections, such as bolted connections and the like; the upper die body 32 is arranged at the upper end of the lower die body 31; in subsequent use, the upper die body 32 is mainly pulled to separate the upper die body 32 from the lower die body 31, so that the pipe fitting is conveniently placed in the area between the upper die body 32 and the lower die body 31, and in addition, in order to facilitate the movement of the upper die body 32, the upper die body 32 is connected with a jacking hydraulic cylinder which is connected with the upper die body 32 through a connecting rod; due to the arrangement, the upper die body 32 can be moved conveniently, and meanwhile, the locking and fixing of the upper die body 32 and the lower die body 31 can be realized better; in addition, in the present invention, the drilling passage 321 is provided on the upper die body 32; the drill bit can conveniently penetrate through the upper die body 32 and the pipe fitting 5 to be processed placed between the upper die body 32 and the lower die body 31; in addition, in the present invention, the placing through hole 34 includes an upper arc-shaped groove 341 disposed on the upper die body 32 and a lower arc-shaped groove 342 disposed on the lower die body 31, and the upper arc-shaped groove 341 and the lower arc-shaped groove 342 are disposed opposite to each other; such setting can conveniently place the processing of through-hole 34, and in addition, it is less than semicircular groove body structure with lower arc groove 342 to go up arc groove 341, and such setting can guarantee that die body 32 is fixed with the locking of lower die body 31 to the pipe fitting.
Further, in the present invention, the drilling mechanism 4 comprises a drilling motor 42, and an output shaft of the drilling motor 42 is connected with a hole drilling bit 41; the drilling motor 42 is connected with a pushing hydraulic cylinder 43 through a slide way mechanism; the slide way mechanism comprises a sliding rail 45 arranged on the support frame 1, and the drilling motor 42 is connected with the sliding rail 45 through a sliding plate 44; the sliding plate 44 is provided with a sliding block, the sliding block is provided with a sliding chute, and the sliding block is clamped on the sliding rail 45 through the sliding chute; the pushing hydraulic cylinder 43 is connected with a sliding plate 44; the push hydraulic cylinder 43 is arranged in the longitudinal direction; through the arrangement of the structure, the pushing hydraulic cylinder 43 can drive the drilling motor 42 to move longitudinally, the drilling motor 42 can drive the hole drilling bit 41 to rotate, so that the hole drilling operation of the pipe fitting is conveniently realized, and in addition, the pushing hydraulic cylinder 43 can be conveniently pushed to the drilling motor 42 due to the arrangement of the sliding mechanism; the pushing hydraulic cylinder is connected to the support frame.
Furthermore, the mould body is provided with a deslagging mechanism, and the deslagging mechanism is arranged to play a good deslagging role and avoid residues from remaining on the pipe fittings; in addition, the deslagging mechanism comprises an internal deslagging mechanism, and the internal deslagging mechanism is connected with the pipe fitting 5 to be processed; the internal deslagging mechanism comprises an air supply pipeline 51, and the air supply pipeline 51 is connected with the end part of the pipe fitting 5 to be processed; the gas supply pipeline 51 is connected with a gas supply part; the gas supply part can be a compressor, a blower and other gas supply equipment and is mainly used for supplying gas to the gas supply pipeline 51, and meanwhile, the gas supply pipeline 51 is connected with the end part of the pipe fitting 5 to be processed, so that the gas supplied by the gas supply part enters the pipe fitting 5 to be processed, the residue in the pipe fitting 5 to be processed is driven to move, and the residue in the pipe fitting is avoided.
Meanwhile, the internal deslagging mechanism also comprises an internal dust collector 52, wherein the internal dust collector 52 is connected with one end, far away from the air supply pipeline 51, of the pipe fitting 5 to be processed; the arrangement of the internal vacuum cleaner 52 can collect the residue blown out of the pipe 5 to be processed, thereby preventing the residue from scattering.
Further, the deslagging mechanism comprises an external deslagging mechanism, the external deslagging mechanism comprises a deslagging channel 33 arranged on the die body, and the deslagging channel 33 is arranged to blow and wash the perforated area of the pipe fitting 5 to be machined so as to avoid residues from remaining outside the pipe fitting; in addition, the deslagging channel 33 is positioned above the placing through hole 34 in the invention; based on the arrangement, the liquid supply part 6 can be matched subsequently, and the opening of the pipe fitting can be cooled; meanwhile, the drilling channel 321, the placing through hole 34 and the deslagging channel 33 are communicated with each other; by the arrangement, the external deslagging mechanism and the internal deslagging mechanism can be matched with each other, so that deslagging operation during hole opening can be better guaranteed; in the present invention, a supply duct 331 is connected to the deslagging path 33, and an air supply unit is connected to the supply duct 331; an external collecting part 332 is arranged at one end of the deslagging channel 33 far away from the supply pipeline 331; the external collecting part 332 can be an external dust collector or a collecting box; the air supply part of the invention can supply air to the supply pipeline 331, thereby being convenient to blow the external residue at the position just opened, and avoiding the residue from remaining outside the steel pipe.
Further, in the invention, the deslagging channel 33 is partially intersected with the placing through hole 34; according to the invention, through the arrangement, the arrangement of each component can be facilitated, the installation interference among the components is reduced, in addition, the local intersecting arrangement is that the joint of the deslagging channel 33 and the placing channel is the hole opening position of the pipe fitting, so that a good avoiding effect can be achieved, and the hole opening operation of the drill bit on the pipe fitting is facilitated.
Further, in the present invention, the supply pipe 331 is connected to a liquid supply mechanism, and the liquid supply mechanism is configured to perform a liquid supply operation on the supply pipe 331, so as to facilitate a liquid supply operation into the supply pipe 331 under the blowing of the gas supply portion, thereby implementing a cooling operation when opening the hole of the pipe, specifically, the liquid supply mechanism includes a communication pipe 61 connected to the supply pipe 331, and the communication pipe 61 is connected to the liquid supply portion 6; the invention is provided with the liquid supply part 6; liquid can be supplied to the supply pipeline 331, so that subsequent cooling operation on the pipe fitting with the hole is facilitated; the liquid supply part 6 can be a water pump or a liquid supply device, and an atomizing head is arranged at the joint of the communicating pipeline 61 and the supply pipeline 331, so that the communicating pipeline 61 can enter the supply pipeline 331 to atomize water liquid and can conveniently move along with air flow.
A method of using a high frequency drill, the method of using comprising the steps of:
step 1: placing a pipe to be processed in the placing through hole 34 of the die body, and locking the upper die body 32 and the lower die body 31;
step 2: after step 1 is finished, starting a deslagging mechanism;
and step 3: after the step 2 is finished, starting the drilling mechanism 4 to enable a drill bit in the drilling mechanism 4 to penetrate through the die body to perform hole opening operation on the pipe 5 to be processed in the die body;
and 4, step 4: after the step 3 is finished, the drilling mechanism 4 is retracted, so that a drill bit in the drilling mechanism 4 is separated from the die body, and after the die body is separated, the deslagging mechanism is closed;
and 5: and (4) after the step (4) is finished, opening the die, taking out the processed pipe fitting, finishing the hole opening operation of one pipe fitting, and repeating the steps (1) to (4) if other hole opening operations of the pipe fitting need to be repeated.
In the invention, when in actual use, the external deslagging mechanism in the deslagging mechanism is required to be started firstly, the drilling operation is started only after the external deslagging mechanism is started, the internal deslagging mechanism is started again after the pipe fitting is drilled, the hole opening operation of the drilling mechanism on the pipe fitting is continuously kept until the pipe fitting meets the design requirement, in addition, after the drilling is finished, the drilling mechanism is firstly separated from the pipe fitting, and after the separation is finished, the external deslagging mechanism is firstly closed, and then the internal deslagging mechanism is closed; by the operation mode, residues in the pipe fitting can be better avoided.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (10)
1. The high-frequency drill is characterized by comprising a support frame, wherein a production platform is arranged on the support frame, a drilling mechanism is arranged on the support frame, and a clamping die is arranged on the production platform; the drilling mechanism is arranged right above the clamping mould.
2. The high-frequency drill according to claim 1, wherein the holding die comprises a die body, and a placing through hole is formed in the die body; the upper end of the die body is provided with a drilling channel; the drilling channel is arranged along the longitudinal direction and communicated with the placing through hole.
3. The high-frequency drill according to claim 2, wherein the die body comprises an upper die body and a lower die body; the lower die body is arranged on the production platform; the upper die body is arranged at the upper end of the lower die body; the drilling channel is arranged on the upper die body; the placing through hole comprises an upper arc-shaped groove and a lower arc-shaped groove, the upper arc-shaped groove is formed in the upper die body, the lower arc-shaped groove is formed in the lower die body, and the upper arc-shaped groove and the lower arc-shaped groove are arranged oppositely.
4. The high-frequency drill according to claim 1, wherein the drilling mechanism includes a drilling motor, an output shaft of which is connected with a hole drilling bit; the drilling motor is connected with a pushing hydraulic cylinder through a slideway mechanism; the slide rail mechanism comprises a slide rail arranged on the support frame, and the drilling motor is connected with the slide rail through a slide plate; the sliding plate is provided with a sliding block, the sliding block is provided with a sliding chute, and the sliding block is clamped on the sliding rail through the sliding chute; the pushing hydraulic cylinder is connected with the sliding plate; the pushing hydraulic cylinder is arranged in the longitudinal direction.
5. The high-frequency drill according to claim 2, wherein the mold body is provided with a deslagging mechanism, the deslagging mechanism comprises an internal deslagging mechanism, and the internal deslagging mechanism is connected with a pipe fitting to be machined; the internal deslagging mechanism comprises an air supply pipeline which is connected with the end part of the pipe fitting to be processed; the gas supply pipeline is connected with a gas supply part.
6. The high-frequency drill according to claim 6, wherein the internal deslagging mechanism further comprises an internal vacuum cleaner connected to an end of the pipe to be machined away from the gas supply line.
7. The high-frequency drill according to claim 5, wherein the deslagging mechanism comprises an external deslagging mechanism, the external deslagging mechanism comprises a deslagging channel arranged on the die body, and the deslagging channel is positioned above the placing through hole; the drilling channel, the placing through hole and the deslagging channel are communicated with each other; the deslagging channel is connected with a supply pipeline, and the supply pipeline is connected with an air supply part; one end of the deslagging channel, which is far away from the supply pipeline, is provided with an external collecting part.
8. The high-frequency drill according to claim 7, wherein the debris removal passage is provided so as to partially intersect with the placement through-hole.
9. The high-frequency drill according to claim 7, wherein a liquid supply mechanism is connected to the supply pipe, and the liquid supply mechanism includes a communication pipe connected to the supply pipe, and a liquid supply portion is connected to the communication pipe.
10. Use of a high frequency drill according to any one of claims 1 to 9, characterised in that the use comprises the steps of:
step 1: placing a pipe fitting to be processed in the placing through hole of the die body, and locking the upper die body and the lower die body;
step 2: after step 1 is finished, starting a deslagging mechanism;
and step 3: after the step 2 is finished, starting the drilling mechanism to enable a drill bit in the drilling mechanism to penetrate through the die body to perform hole opening operation on the pipe fitting to be processed in the die body;
and 4, step 4: after the step 3 is finished, retracting the drilling mechanism to enable a drill bit in the drilling mechanism to be separated from the die body, and closing the slag removing mechanism after the die body is separated;
and 5: and (4) after the step (4) is finished, opening the die, taking out the processed pipe fitting, finishing the hole opening operation of one pipe fitting, and repeating the steps (1) to (4) if other hole opening operations of the pipe fitting need to be repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637402.9A CN114274254B (en) | 2021-12-29 | 2021-12-29 | High-frequency drill and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637402.9A CN114274254B (en) | 2021-12-29 | 2021-12-29 | High-frequency drill and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114274254A true CN114274254A (en) | 2022-04-05 |
| CN114274254B CN114274254B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111637402.9A Active CN114274254B (en) | 2021-12-29 | 2021-12-29 | High-frequency drill and use method thereof |
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|---|---|---|---|---|
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| CN205309397U (en) * | 2015-12-07 | 2016-06-15 | 吴中区光福华宇钣金厂 | Stifled anchor clamps are prevented in tubular goods processing |
| CN108188443A (en) * | 2018-01-10 | 2018-06-22 | 宁波鑫神泽汽车零部件有限公司 | A kind of auto parts drilling equipment |
| CN109500429A (en) * | 2018-11-21 | 2019-03-22 | 西安科技成果转化工程有限公司 | A kind of mobile phone metal shell automation drilled hole polishing equipment |
| CN112265048A (en) * | 2020-09-18 | 2021-01-26 | 陈丽红 | Plastic tubing drilling machine |
| CN112775458A (en) * | 2020-09-07 | 2021-05-11 | 江苏鑫中弯智能科技有限公司 | Semi-automatic pipe fitting bilateral drilling machine |
| CN213729466U (en) * | 2020-10-23 | 2021-07-20 | 肇庆市科鸿机械有限公司 | Pipe fitting drilling equipment for machining |
| CN113369528A (en) * | 2021-05-25 | 2021-09-10 | 李曼利 | Numerical control machine tool for drilling in automobile bearing production |
| CN113560627A (en) * | 2021-07-29 | 2021-10-29 | 汪尔康 | Intelligent punching equipment is used in automobile parts processing |
| CN113579309A (en) * | 2021-09-07 | 2021-11-02 | 北京市自来水集团禹通市政工程有限公司 | Drilling device for pressure pipeline |
| CN214981541U (en) * | 2021-03-30 | 2021-12-03 | 汉源官堰有限公司 | Perforating device is used in processing of dust-protection type drain pipe |
-
2021
- 2021-12-29 CN CN202111637402.9A patent/CN114274254B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1128605A (en) * | 1997-07-09 | 1999-02-02 | Nitto Kohki Co Ltd | Drilling machine |
| CN205309397U (en) * | 2015-12-07 | 2016-06-15 | 吴中区光福华宇钣金厂 | Stifled anchor clamps are prevented in tubular goods processing |
| CN108188443A (en) * | 2018-01-10 | 2018-06-22 | 宁波鑫神泽汽车零部件有限公司 | A kind of auto parts drilling equipment |
| CN109500429A (en) * | 2018-11-21 | 2019-03-22 | 西安科技成果转化工程有限公司 | A kind of mobile phone metal shell automation drilled hole polishing equipment |
| CN112775458A (en) * | 2020-09-07 | 2021-05-11 | 江苏鑫中弯智能科技有限公司 | Semi-automatic pipe fitting bilateral drilling machine |
| CN112265048A (en) * | 2020-09-18 | 2021-01-26 | 陈丽红 | Plastic tubing drilling machine |
| CN213729466U (en) * | 2020-10-23 | 2021-07-20 | 肇庆市科鸿机械有限公司 | Pipe fitting drilling equipment for machining |
| CN214981541U (en) * | 2021-03-30 | 2021-12-03 | 汉源官堰有限公司 | Perforating device is used in processing of dust-protection type drain pipe |
| CN113369528A (en) * | 2021-05-25 | 2021-09-10 | 李曼利 | Numerical control machine tool for drilling in automobile bearing production |
| CN113560627A (en) * | 2021-07-29 | 2021-10-29 | 汪尔康 | Intelligent punching equipment is used in automobile parts processing |
| CN113579309A (en) * | 2021-09-07 | 2021-11-02 | 北京市自来水集团禹通市政工程有限公司 | Drilling device for pressure pipeline |
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| CN114274254B (en) | 2024-03-19 |
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Address after: 241000 No. 26, Hengshan Road, Wuhu District, China (Anhui) pilot Free Trade Zone, Wuhu City, Anhui Province Applicant after: Wuhu Tonghe Automotive Fluid System Co.,Ltd. Address before: 241000 No. 26, Hengshan Road, Wuhu District, China (Anhui) pilot Free Trade Zone, Wuhu City, Anhui Province Applicant before: WUHU TONHE AUTOMOBILE FLUID SYSTEM Co.,Ltd. |
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