CN111120492B - Internal thread changing device and method - Google Patents
Internal thread changing device and method Download PDFInfo
- Publication number
- CN111120492B CN111120492B CN202010102316.7A CN202010102316A CN111120492B CN 111120492 B CN111120492 B CN 111120492B CN 202010102316 A CN202010102316 A CN 202010102316A CN 111120492 B CN111120492 B CN 111120492B
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- internal thread
- boss
- hole
- base part
- connecting piece
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003292 glue Substances 0.000 claims description 15
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002715 modification method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 10
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012857 repacking Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/02—Nuts or like thread-engaging members made of thin sheet material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/061—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B2037/007—Nuts or like thread-engaging members with a blind hole
Abstract
The application discloses an internal thread changing device and a changing method, comprising a connecting piece, wherein a boss is arranged on the connecting piece; the structure of the boss is matched with the through hole in the base part, so that the boss can be sleeved in the through hole in the base part; and the boss is provided with an internal thread. The technical problem that the position and the size of the internal thread are not easy to change in the prior art is solved.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to an internal thread changing device and a changing method.
Background
In the field of engineering application, the application of the internal thread is very wide. At present, internal thread machining has many methods, such as turning threads, milling threads, tapping threads and the like, but once thread machining is completed and the internal thread machining is installed on a product, if the size of the internal thread is required to be changed or the position of a threaded hole is required to be adjusted, the problems of great changing difficulty, high changing cost, long changing period, great changing risk and the like exist. In addition, when the axis of the internal thread is not perpendicular to the end face of the thread, modification of the internal thread is made difficult; when the operating space required for the modification of the internal thread is limited and the work required for the modification is limited, the modification of the internal thread is also made difficult.
At present, the existing thread changing methods are few, and mainly include the following methods: the parts are replaced, but the method requires the parts to be disassembled and replaced, but the disassembling of the parts not only has certain risks, but also has high cost for replacing the parts. And (4) tapping, when the thickness of the base material is larger, the risk of screw tap fracture is higher, and when the position of the threaded hole needs to be changed, new threaded holes cannot be realized when the new threaded holes are overlapped with the old threaded holes. The original internal thread is damaged and reamed, and the steel wire thread insert is embedded, so that the method cannot realize embedding the steel wire thread insert for a plate with thinner thickness.
The thread changing method in the prior art has certain problems, so that the thread is difficult to change.
Disclosure of Invention
The invention aims to provide an internal thread changing device and a changing method, which are used for solving the technical problem that the position and the size of an internal thread are not easy to change in the prior art.
In order to realize the purpose, the invention adopts the following technical scheme:
an internal thread modifying device comprising:
the connecting piece is provided with a boss;
the structure of the boss is matched with the through hole on the base part, so that the boss can be sleeved in the through hole on the base part; and the boss is provided with an internal thread.
Preferably, the boss is provided with a hole, the hole extends from the upper end face of the boss to the lower end face of the connecting piece, and an internal thread is arranged inside the hole.
Preferably, the connecting piece adopts a thin plate structure, and the appearance structure of the connecting piece is matched with the end face structure of the base part.
Preferably, when the required internal thread is a blind hole, the boss is a nut, and the nut is welded on the connecting piece.
Preferably, when the required internal thread is a through hole, a through hole is formed in the bottom surface of the connecting piece, a nut is fixedly arranged at the through hole, and the internal thread structure of the nut is consistent with the required internal thread structure.
An internal thread modification method, comprising the steps of:
(1) designing a connecting piece and a boss in the required internal thread modification according to the structure of the internal thread to be modified and the structure of the surface of the base part, so that the structure of the connecting piece is matched with the structure of the surface of the base part, and the size of the internal thread structure on the opening of the boss is consistent with the actual requirement;
(2) punching a through hole at the position of the internal thread to be changed, so that the aperture of the through hole is larger than the peripheral size of the boss, and the boss can be inserted into the through hole;
(3) cleaning the mounting end face of the internal thread changing device and the mounting end face of the base part;
(4) and inserting the boss into the through hole of the base part, and fixedly installing the internal thread changing device on the base part.
Preferably, a glue layer with a certain thickness is uniformly coated on the mounting surfaces of the connecting piece and the boss, then the boss is inserted into the through hole of the base part, the connecting piece is bonded on the end surface of the base part, finally the bolt is screwed into the internal thread of the boss, and the glue layer is waited to solidify to reach the working strength.
Preferably, glass beads are uniformly scattered on the adhesive layer to ensure the thickness of the adhesive layer.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides an internal thread changing device which comprises a connecting piece, wherein a boss is arranged on the connecting piece, and the structure of the boss is matched with a threaded hole in a base part, so that the boss can be sleeved in the threaded hole in the base part; and the boss is provided with an internal thread. The structure, the boss structure and the boss internal thread size structure of the connecting piece can be designed according to the actual requirements of the base body part. When the helicitic texture on the base member needs to change promptly, can be according to the internal thread's that needs to change structure and the structure on base member surface, design connecting piece and boss in the more repacking of required internal thread for the structure of connecting piece cooperatees with the surface texture of base member, and the internal thread structure size on the boss is unanimous with actual need. Therefore, by adopting the structure, the structure of the internal thread can be changed into a larger structure, a smaller structure, the number of threads can be increased or reduced, and the position of the threaded hole can be changed. Therefore, the technical problem that the position and the size of the internal thread are not easy to change in the prior art is solved.
Drawings
FIG. 1 is a schematic view of the internal thread modifying apparatus of the present invention;
FIG. 2 is a schematic view of the internal thread modifying apparatus of the present invention;
FIG. 3 is a schematic view of the internal thread modifying apparatus of the present invention assembled with a base member;
in the above figures: 1. a connecting member; 2. a boss; 3. a glue layer; 4. glass beads; 5. a base part;
Detailed Description
Technical scheme in the embodiment of this application is for solving the difficult technical problem who changes of internal thread among the above-mentioned prior art, and the general thinking is as follows:
the invention provides an internal thread changing device which comprises a connecting piece 1, wherein a boss 2 is arranged on the connecting piece 1, and the structure of the boss 2 is matched with a through hole on a base part 5, so that the boss 2 can be sleeved in the through hole on the base part 5; and the boss 2 is provided with an internal thread. The structure of the connecting piece 1, the structure of the boss 2 and the size structure of the internal thread of the boss 2 can be designed according to the actual requirement of the base part 5. When the helicitic texture on the base member 5 needs to be changed promptly, can be according to the internal thread's that needs to change structure and the structure on base member 5 surface, design connecting piece 1 and boss 2 in the more repacking of required internal thread for the structure of connecting piece 1 cooperatees with the surface texture of base member 5, and the internal thread structure size on the trompil of boss 2 is unanimous with actual need. Therefore, by adopting the structure, the structure of the internal thread can be changed into a larger structure, a smaller structure, the number of threads can be increased or reduced, and the position of the threaded hole can be changed. Therefore, the technical problem that the position and the size of the internal thread are not easy to change in the prior art is solved.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 1-3, the invention designs an internal thread changing device, which comprises a connecting piece 1, wherein a boss 2 is arranged on the connecting piece 1; the structure of the boss 2 is matched with the through hole on the base part 5, so that the boss 2 can be sleeved in the through hole on the base part 5; and the boss 2 is provided with an internal thread.
In this embodiment, the connecting member 1 is of a thin plate structure, and meanwhile, the thin plate is not limited to a flat plate, and may be a curved surface or an irregular plate, and the structure of the connecting member 1 may be designed according to the structure of the mounting end surface of the base part 5, so that the mounting end surface of the connecting member 1 is matched with the end surface of the base part 5.
The boss 2 is located on the connecting member 1, and the structure of the boss 2 needs to be designed according to a through hole on the base part 5, so that the boss 2 can be inserted into the through hole. And the boss 2 is provided with internal threads. Specifically, the thread structure that the structure of boss 2 was changed according to actual need designs for 2 internal thread structures of boss accord with the structure and the size of actual required screw thread. When the boss 2 and the thin plate are integrated, the processing can be performed by a milling machine. When the internal thread is required to be a blind hole, a nut can be directly welded on the thin plate to obtain the internal thread replacing device, and the size and the structure of the nut are consistent with those of the actual required internal thread structure. When the internal thread is the through-hole, can be through opening the bottom hole on the sheet metal, then weld a nut in bottom hole department, also can install the rivet nut or press the rivet nut in bottom hole department, and above nut structure and the size of choosing for use are unanimous with the structure and the size of the internal thread that actually needs for the time internal thread accords with the requirement that actually needs.
Further, the number of the bosses 2 can be multiple, that is, multiple bosses 2 can be designed on the thin plate according to actual needs. I.e. the number of bosses 2, is determined by the number of internal threads to be modified on the base part 5.
By adopting the internal thread changing device, the structure of the connecting piece 1, the structure of the boss 2 and the size structure of the internal thread of the boss 2 can be designed according to the actual requirement of the base part 5. When the helicitic texture on the base member 5 needs to be changed promptly, can be according to the internal thread's that needs to change structure and the structure on base member 5 surface, design connecting piece 1 and boss 2 in the change device more to required internal thread for the structure of connecting piece 1 cooperatees with the surface texture of base member 5, and the internal thread structure size on the boss 2 is unanimous with actual need. Therefore, by adopting the structure, the structure of the internal thread can be changed into a larger structure, a smaller structure, the number of threads can be increased or reduced, and the position of the threaded hole can be changed. The technical problem that the position and the size of the internal thread are not easy to change in the prior art is solved.
According to a second aspect of the present invention, there is provided an internal thread modification method, which is applied to the above-described internal thread modification apparatus. Specifically, the method for changing the internal thread comprises the following steps:
firstly, designing a connecting piece 1 and a boss 2 in the required internal thread modification according to the structure of the internal thread to be modified and the structure of the surface of a base part 5, so that the structure of the connecting piece 1 is matched with the structure of the surface of the base part 5, and the size of the internal thread structure on the boss 2 is consistent with the actual requirement; then, perforating a through hole at the position of the internal thread to be changed, so that the aperture of the through hole is larger than the peripheral size of the boss 2, and the boss 2 can be inserted into the through hole; cleaning the mounting end face of the internal thread changing device and the mounting end face of the base part 5; finally, the boss 2 is inserted into the through hole of the base body part 5, and the internal thread changing device is fixedly mounted on the base body part 5.
Further, after the mounting end face of the internal thread changing device and the mounting end face of the base part 5 are cleaned, the glue layer 3 with a certain thickness is uniformly coated on the mounting end face of the internal thread changing device, and the thickness of the glue layer 3 can be set according to actual needs, so that the changing device can be stably bonded with the base part 5.
Furthermore, in order to ensure the thickness of the adhesive layer 3 of the bonding surface, some glass beads 4 can be uniformly scattered on the adhesive layer 3, and the glass beads 4 can also be made of other particle materials according to actual needs as long as the use of the adhesive layer 3 is not affected.
Further, bond back to base member part 5 with the internal thread change device, can carry out accurate location on screwing the internal thread of boss 2 with the bolt, solidify and reach certain working strength until glue film 3 for the firm installation of internal thread change device is on base member part 5.
By the method, the size of the thread can be designed and changed at will, and the position of the threaded hole can be replaced. By adopting the method, the technical problem that threads cannot be machined on the thin plate is solved, the changing difficulty of the threads in the product is effectively reduced, and the changing cost is the risk. Therefore, the problem that the thread changing difficulty is large in the prior art is solved.
For a clearer explanation of the present application, the working principle of the present invention is further explained below by taking the embodiments shown in fig. 1 to 3 as examples:
when the size, the number of teeth, the position, etc. of the internal thread on the base member 5 need to be changed, the internal thread on the base member 5 can be changed by designing the internal thread changing device and by the method described above. Specifically, when the size of the internal thread needs to be changed, the structure of the connecting piece 1 on the internal thread changing device, the structure of the boss 2 and the internal thread structure of the boss 2 are designed according to the structure of the base part 5 and the size of the actually required internal thread, so that the connecting piece 1 can be matched with the mounting end face of the base part 5, and can be mounted and attached together. Meanwhile, the structure of the boss 2 is designed according to the structure of the through hole at the position of the original threaded hole on the base part 5. Then according to the size of the boss 2 that actually designs, punch the adjustment to the former screw hole on base member 5 for the aperture of the through-hole of punching slightly is greater than the periphery size of boss 2, guarantees from this that boss 2 can insert in the through-hole, can guarantee from this that the internal thread changes the device and installs on base member 5 more stably. Then, the mounting end faces of the base part 5, the connecting piece 1 and the boss 2 are cleaned, that is, the connecting end faces of the base part 5, the connecting piece 1 and the boss 2 are cleaned, so that the internal thread changing device can be mounted on the base part 5 more stably. Then, a glue layer 3 is uniformly coated on the mounting end faces of the connecting piece 1 and the boss 2, namely, the internal thread modifying device is bonded with the base part 5 through the glue layer 3. And in order to ensure the thickness of the adhesive surface glue layer 3, glass beads 4 are scattered on the glue layer 3. And finally, screwing a bolt on the internal thread of the boss 2 until the glue layer 3 is solidified to have certain working strength, so that the internal thread changing device can be stably installed on the base part 5, and the change of the internal thread is realized.
When the number of the teeth of the internal thread needs to be changed, the change can be carried out by the method, namely, the structure of the internal thread of the boss 2 is changed.
When the position of the internal thread needs to be changed, a hole can be drilled in the connecting piece 1 at a required position according to the designed boss 2, and the structure of the hole is matched with the structure of the boss 2, so that the boss 2 can be inserted into the through hole. The female thread modifying means is then mounted to the base part 5 in accordance with the method described above.
Therefore, by the method, the size of the thread can be designed and changed at will, and the position of the threaded hole can be replaced. By adopting the method, the technical problem that threads cannot be machined on the thin plate is solved, the changing difficulty of the threads in the product is effectively reduced, and the changing cost is the risk. From this, solved the great problem of the internal thread change degree of difficulty among the prior art.
The present invention has been described in detail above with reference to exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", "first", "second", etc. indicate orientations or positional relationships based on the positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present application, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; either directly or through an intermediary profile. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Claims (7)
1. An internal thread modifying device comprising:
the connecting piece is provided with one or more bosses and adopts a thin plate structure, and the appearance structure of the connecting piece is matched with the end surface structure of the base part; so that the mounting and the fitting can be realized;
the structure of the boss is matched with the through hole on the base part, so that the boss can be sleeved in the through hole on the base part; and the boss is provided with an internal thread.
2. The internal thread modifying apparatus according to claim 1, wherein the boss is provided with an opening extending from an upper end surface of the boss to a lower end surface of the connecting member, and an internal thread is provided inside the opening.
3. The internal thread modification apparatus of claim 1, wherein when the desired internal thread is a blind hole, the boss is a nut welded to the connection member.
4. The internal thread modifying apparatus of claim 1, wherein when the desired internal thread is a through hole, a through hole is formed on the bottom surface of the connecting member, and a nut is fixedly disposed at the through hole, and the internal thread structure of the nut is identical to the desired internal thread structure.
5. A method of modifying internal threads, comprising the steps of:
(1) designing a connecting piece and a boss in the required internal thread modification according to the structure of the internal thread to be modified and the structure of the surface of the base part, so that the structure of the connecting piece is matched with the structure of the surface of the base part, and the size of the internal thread structure on the opening of the boss is consistent with the actual requirement;
(2) punching a through hole at the position of the internal thread to be changed, so that the aperture of the through hole is larger than the peripheral size of the boss, and the boss can be inserted into the through hole;
(3) cleaning the mounting end face of the internal thread changing device and the mounting end face of the base part;
(4) and inserting the boss into the through hole of the base part, and fixedly installing the internal thread changing device on the base part.
6. The method for modifying an internal thread of a screw driver as claimed in claim 5, wherein a glue layer of a predetermined thickness is uniformly applied to the mounting surfaces of the connecting member and the boss, the boss is inserted into the through hole of the base member to bond the connecting member to the end surface of the base member, and the bolt is screwed into the internal thread of the boss until the glue layer is solidified to achieve the working strength.
7. The internal thread modification method of claim 6, wherein the glue layer is uniformly sprinkled with glass beads to ensure the thickness of the glue layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010102316.7A CN111120492B (en) | 2020-02-19 | 2020-02-19 | Internal thread changing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010102316.7A CN111120492B (en) | 2020-02-19 | 2020-02-19 | Internal thread changing device and method |
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| Publication Number | Publication Date |
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| CN111120492A CN111120492A (en) | 2020-05-08 |
| CN111120492B true CN111120492B (en) | 2022-03-11 |
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| CN202010102316.7A Active CN111120492B (en) | 2020-02-19 | 2020-02-19 | Internal thread changing device and method |
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| CN111120492A (en) | 2020-05-08 |
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