CN216298201U - Fine adjustment device for threaded mold core - Google Patents
Fine adjustment device for threaded mold core Download PDFInfo
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- CN216298201U CN216298201U CN202122577640.7U CN202122577640U CN216298201U CN 216298201 U CN216298201 U CN 216298201U CN 202122577640 U CN202122577640 U CN 202122577640U CN 216298201 U CN216298201 U CN 216298201U
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Abstract
The utility model belongs to the field of auxiliary clamp structures of machining equipment, and particularly relates to a fine adjustment device for a threaded mold core. Comprises a fixed clamp, a pressing sleeve and a locking bolt group; the fixed clamp comprises a positioning part at the front end and a connecting part at the rear end, and the connecting part is of a regular prism structure and is matched with a multi-jaw chuck on the processing equipment; the pressing sleeve is buckled at the front end of the positioning part; the locking bolt set comprises a plurality of locking bolts which penetrate through the pressing screw holes e and are screwed into the pressing screw holes e. The utility model can ensure that the processed thread core main body can return to the same calibration position no matter how many times the thread core main body is assembled and disassembled, ensures the consistency of the sizes of workpieces, and simultaneously, through the use of the clamp, the original thread repair which is only operated by old technicians can repair the thread workpieces well only by new workers according to the process, thereby achieving the economical ideal effects of low standard of personnel operation and material consumption.
Description
Technical Field
The utility model belongs to the field of auxiliary clamp structures of machining equipment, and particularly relates to a fine adjustment device for a threaded mold core.
Background
The plastic threads are changed along with market demands, are more and more diversified in types, are widely applied to various fields such as electronic products, household appliances and aerospace aviation at present, are important products for replacing metal threads and clinker threads which are easy to rust, easy to corrode and difficult to clean, and have the advantages of light weight, good insulating property, attractiveness, environmental friendliness, no rustiness, convenience and quickness in assembly and the like.
Meanwhile, along with the continuous change of products and markets, the machining requirements of customers on the thread cores are higher and higher, in the production process, the products which are produced and machined for the first time can not reach the technical standards required by the customers, at the moment, the products need to be finely adjusted, and due to the limitation of the existing machining equipment technology and the existing machining process, the difficulty in adjusting the thread cores is high, on one hand, the consistency of thread pitches and tool setting points, the identity of tooth form angles, the consistency of rotation points and the micro-adjustment control of thread sizes are involved, so the repair quality of the thread cores is difficult to guarantee, great uncertainty exists, and in the practical production implementation process, many enterprises can directly scrap the thread cores with unqualified sizes and then reproduce, but the reproduced thread cores can not necessarily reach the technical standards required by the customers, a great deal of expenditure and labor consumption can be caused, so that the production quality and the production period of the threaded core product are difficult to guarantee, the healthy development of the industry is not facilitated, and the market demand is met.
Disclosure of Invention
The utility model aims to provide a fine adjustment device for fine adjustment of a threaded mold core based on the current situation, which can effectively ensure the dimensional accuracy of each item in the fine adjustment process, is convenient and quick to use, has low requirements on the process level of an operator and has low use cost.
In order to achieve the purpose, the utility model adopts the following technical scheme.
A fine adjustment device for a threaded mold core comprises a fixed clamp 1, a pressing sleeve 2 and a locking bolt group 3;
the fixing jig 1 includes a positioning portion 1a at a front end and a connecting portion 1b at a rear end,
a clamping hole 1c is formed in the center of the positioning part 1a, an annular positioning groove 1d is formed in an outlet at the front end of the clamping hole 1c, the diameter of the clamping hole 1c is matched with the diameter of a main shaft section 9a of the threaded core 9 to be machined, and the diameter of the annular positioning groove 1d is matched with the diameter of a positioning shoulder 9b of the threaded core 9 to be machined; the front end surface of the positioning part 1a is a plane vertical to the axis of the clamping hole 1c, and the front end surface of the positioning part 1a is provided with a plurality of pressing screw holes 1 e;
the connecting part 1b is of a regular prism structure and is matched with a multi-jaw chuck on processing equipment; the clamping hole 1c extends from the positioning part 1a from front to back and penetrates out of the connecting part 1b, and the axis of the clamping hole 1c is collinear with the central axis of the connecting part 1 b;
the pressing sleeve 2 is buckled at the front end of the positioning part 1a, a connecting groove 2a matched with the front end of the positioning part 1a in shape is formed in the rear side of the pressing sleeve 2, and the front end of the positioning part 1a extends into the connecting groove 2 a; a through hole 2b and a plurality of through holes 2c are formed in the center of the front end of the pressing sleeve 2, the through hole 2b and the clamping hole 1c are coaxially arranged, and the through holes 2c correspond to the pressing screw holes 1e one by one;
the locking bolt group 3 comprises a plurality of locking bolts which penetrate through the pressing screw holes 1e and are screwed into the pressing screw holes 1 e.
By utilizing the fine adjustment device for the threaded core, in the using process, a chuck on a machine tool is used for clamping a fixed clamp, the threaded core is inserted into a clamping hole, the parallelism of the circle center of the threaded core is ensured through the clamping hole and an annular positioning groove step, then a pressing sleeve is used for pressing from the front, and then a locking bolt group is screwed, so that the main body of the threaded core can be preferentially fixed; after clamping, the machine tool chuck is restored to the original zero point, and then the collision position of the front end of the threaded core main body is used for setting the zero point of the threaded cutter, so that the consistency of the zero point of the machine tool, the zero point of the clamp angle and the zero point of the cutter can be conveniently and quickly ensured.
The fine adjustment device for the threaded mold core further improves or adopts the preferred embodiment, the fine adjustment device further comprises an anti-rotation positioning pin 4, and the inner walls of the clamping hole 1c and the through hole 2b are provided with clearance grooves 8 a.
Rock about can effectively preventing the screw core through preventing changeing the locating pin and lead to the screw thread dislocation in the indiscriminate tooth of appearance, it strengthens fixedly to optionally prevent changeing the locating pin when pressing the cover to compress tightly inconvenience or the dynamics is not enough.
A further improvement or preferred embodiment of the aforementioned finishing adjustment device for the threaded core further comprises a counter-pressure lock nut 5, the counter-pressure lock nut 5 being arranged on the rear side of the connecting portion 1b, the counter-pressure lock nut 5 matching the rear end thread of the threaded core 9 to be machined.
Generally, most of threaded cores can be effectively fixed by utilizing the pressing sleeve and the locking bolt group or being matched with the anti-rotation positioning pin, and in order to keep the fixing effect, the threaded cores can be locked in an auxiliary mode through the back-pressure locking nut as a redundancy guarantee measure, so that the effectiveness of clamping and positioning is further guaranteed.
In a further improvement or preferred embodiment of the finishing adjustment device for the threaded core, the positioning portion 1a is of a solid of revolution structure and is coaxial with the clamping hole (1 c).
Through designing location portion 1a into the body of revolution structure coaxial with centre gripping hole (1c), can be convenient for guarantee and rectify the anchor clamps main part and guarantee the concentricity, be convenient for operation implementation and the processing production of anchor clamps.
In a further improvement or preferred embodiment of the finishing adjustment device for the threaded core, the connecting portion 1b has a regular triangular prism structure or a quadrangular prism structure.
In a further development or preferred embodiment of the finishing adjustment device for threaded cores described above, the hold-down screw holes 1e are evenly distributed in an annular array centered on the axis of the clamping hole 1 c.
In a further development or preferred embodiment of the aforementioned finishing adjustment device for a threaded core, the through hole 2c is a stepped hole.
The beneficial effects are that:
the utility model can ensure that the processed threaded core main body can return to the same calibration position no matter how many times the threaded core main body is assembled and disassembled, ensure the consistency of the sizes of workpieces, avoid the phenomenon that the workpieces are scrapped due to the disordered teeth caused by inaccurate size touch and angular deviation, and simultaneously ensure that the original threaded workpiece repaired by old and skilled workers can be well repaired by new workers only according to the process, thereby achieving the low standard of personnel operation and the economical effect on material consumption.
The fine adjustment device for the threaded mold core can effectively reduce unnecessary loss in the manufacturing process of products, improve the product quality, optimize the product appearance and shorten the product processing period. The method can reduce the operation difficulty of personnel, realize simple and popular operation, and is convenient to popularize and apply.
Drawings
FIG. 1 is a side view of a finishing adjustment for a threaded core;
FIG. 2 is a cross-sectional view of a finishing adjustment of a threaded core;
FIG. 3 is an assembly view of a finishing adjustment for a threaded core.
Wherein the reference numerals include:
fixing clamp 1, location portion 1a, connecting portion 1b, centre gripping hole 1c, annular positioning groove 1d, compress tightly screw 1e, press cover 2, spread groove 2a, via hole 2b, through-hole 2c, locking bolt group 3, prevent changeing locating pin 4, back pressure lock nut 5, keep away empty groove 8a, main shaft section 9 a.
Detailed Description
The present invention will be described in detail with reference to specific examples.
The fine adjustment device for the threaded mold core is mainly used for fine adjustment of various threaded mold cores so as to repair and reform the existing products, improve the effectiveness of repair, ensure the product quality of the threaded mold core and reduce the production and use cost of enterprises.
As shown in fig. 1, 2 and 3, the finishing adjustment device for the threaded core mainly comprises a fixing clamp 1, a pressing sleeve 2 and a locking bolt group 3;
wherein the fixing jig is used for the support and positioning of the threaded core while preventing deformation and damage of the threaded core during machining. The basic structure of the fixing clamp 1 comprises a positioning part 1a at the front end and a connecting part 1b at the rear end;
the positioning part 1a is mainly used for clamping the threaded core, a clamping hole 1c is formed in the center of the positioning part, an annular positioning groove 1d is formed in the front end outlet of the clamping hole 1c, the diameter of the clamping hole 1c is matched with the diameter of a main shaft section 9a of the threaded core 9 to be machined, and the diameter of the annular positioning groove 1d is matched with the diameter of a positioning shoulder 9b of the threaded core 9 to be machined; the front end surface of the positioning part 1a is a plane vertical to the axis of the clamping hole 1c, and the front end surface of the positioning part 1a is provided with a plurality of pressing screw holes 1 e;
as a preferable scheme, the positioning part 1a is a revolving body structure and is coaxial with the clamping hole (1c) in the embodiment, and the concentricity of the clamp main body can be ensured and corrected conveniently by designing the positioning part 1a to be the revolving body structure coaxial with the clamping hole (1 c).
The connecting part 1b is used for being connected with structures such as a multi-jaw chuck on machine tool equipment, and as a general and simple technical scheme, the connecting part 1b is designed to be of a regular prism structure and matched with the multi-jaw chuck on machining equipment; a clamping hole 1c extends from the front to the back from the positioning part 1a and penetrates out of the connecting part 1b, and the axis of the clamping hole 1c is collinear with the central axis of the connecting part 1 b;
for the existing common processing equipment, a three-jaw or four-jaw chuck structure is generally adopted, and as a preferred scheme, in the embodiment, the connecting part 1b correspondingly adopts a regular triangular prism structure or a quadrangular prism structure.
The pressing sleeve 2 is used for pressing the threaded mold core on the fixing clamp 1 to prevent the threaded mold core from being separated, and meanwhile, a threaded section at the front end of the threaded mold core is exposed to facilitate machining; a through hole 2b and a plurality of through holes 2c are formed in the center of the front end of the pressing sleeve 2, the through hole 2b and the clamping hole 1c are coaxially arranged, and the through holes 2c correspond to the pressing screw holes 1e one by one;
as shown in fig. 3, in order to facilitate the implementation, the processing and the assembly, in this embodiment, the pressing screw holes 1e are uniformly distributed in a circular array with the axis of the clamping hole 1c as the center. In the actual implementation process, in order to prevent the nut part of the lock bolt from protruding from the front end face of the tooth socket and increase the processing difficulty, as an optimal scheme, the through hole 2c adopts a step hole, so that the nut part of the lock bolt sinks into the interior of the pressure sleeve, and the influence on the operation of a cutter and other processing contents is avoided.
The lock bolt group 3 includes a plurality of lock bolts which pass through the hold-down screw holes 1e and are screwed into the hold-down screw holes 1 e.
By utilizing the fine adjustment device for the threaded core, in the using process, a chuck on a machine tool is used for clamping a fixed clamp, the threaded core is inserted into a clamping hole, the parallelism of the circle center of the threaded core is ensured through the clamping hole and an annular positioning groove step, then a pressing sleeve is used for pressing from the front, and then a locking bolt group is screwed, so that the main body of the threaded core can be preferentially fixed; after clamping, the machine tool chuck is restored to the original zero point, and then the collision position of the front end of the threaded core main body is used for setting the zero point of the threaded cutter, so that the consistency of the zero point of the machine tool, the zero point of the clamp angle and the zero point of the cutter can be conveniently and quickly ensured.
In particular, in the machining process, the machining force of the machining tool is high, the phenomenon that the threaded core rotates is caused, and thread machining fails, so that the anti-rotation positioning pin 4 is further included, and the inner walls of the clamping hole 1c and the via hole 2b are provided with the clearance groove 8 a.
Rock about can effectively preventing the screw core through preventing changeing the locating pin and lead to the screw thread dislocation in the indiscriminate tooth of appearance, it strengthens fixedly to optionally prevent changeing the locating pin when pressing the cover to compress tightly inconvenience or the dynamics is not enough.
On the basis of the above, in order to further improve the fastening effect and meet the clamping requirement of the partial screw core, the present embodiment further includes a back pressure lock nut 5, the back pressure lock nut 5 is arranged at the rear side of the connecting portion 1b, and the back pressure lock nut 5 is matched with the rear end screw thread of the screw core 9 to be processed. The back-pressure locking nut is used as a redundancy guarantee measure to assist in locking so as to further guarantee the effectiveness of clamping and positioning.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The fine adjustment device for the threaded mold core is characterized by comprising a fixed clamp (1), a pressing sleeve (2) and a locking bolt group (3);
the fixing clamp (1) comprises a positioning part (1a) at the front end and a connecting part (1b) at the rear end,
a clamping hole (1c) is formed in the center of the positioning portion (1a), an annular positioning groove (1d) is formed in the position of an outlet at the front end of the clamping hole (1c), the diameter of the clamping hole (1c) is matched with the diameter of a main shaft section (9a) of the threaded core (9) to be machined, and the diameter of the annular positioning groove (1d) is matched with the diameter of a positioning shoulder (9b) of the threaded core (9) to be machined; the front end surface of the positioning part (1a) is a plane vertical to the axis of the clamping hole (1c), and a plurality of pressing screw holes (1e) are arranged on the front end surface of the positioning part (1 a);
the connecting part (1b) is of a regular prism structure and is matched with a multi-jaw chuck on the processing equipment; the clamping hole (1c) extends from the positioning part (1a) from front to back and penetrates out of the connecting part (1b), and the axis of the clamping hole (1c) is collinear with the central axis of the connecting part (1 b);
the pressing sleeve (2) is buckled at the front end of the positioning part (1a), a connecting groove (2a) matched with the front end of the positioning part (1a) in shape is formed in the rear side of the pressing sleeve (2), and the front end of the positioning part (1a) extends into the connecting groove (2 a); a through hole (2b) and a plurality of through holes (2c) are formed in the center of the front end of the pressing sleeve (2), the through hole (2b) and the clamping hole (1c) are coaxially arranged, and the through holes (2c) correspond to the pressing screw holes (1e) one by one;
the locking bolt group (3) comprises a plurality of locking bolts which penetrate through the pressing screw holes (1e) and are screwed into the pressing screw holes (1 e).
2. The fine adjustment device for the threaded cores according to claim 1, further comprising an anti-rotation positioning pin (4), wherein clearance grooves (8a) are formed in the inner walls of the clamping holes (1c) and the through holes (2 b).
3. A finishing adjustment device of a threaded core according to claim 1, characterized by comprising a counter-pressure lock nut (5), the counter-pressure lock nut (5) being arranged on the rear side of the connection portion (1b), the counter-pressure lock nut (5) matching the rear end thread of the threaded core (9) to be machined.
4. The finishing adjustment device of a threaded core according to claim 1, characterized in that the positioning portion (1a) is of a solid of revolution structure and is coaxial with the clamping hole (1 c).
5. A finishing adjustment device for threaded cores, according to claim 1, characterized in that said connection (1b) is of regular triangular prism configuration or quadrangular prism.
6. A finishing adjustment device for threaded cores, according to claim 1, characterized in that the said compression screw holes (1e) are uniformly distributed in an annular array centered on the axis of the clamping hole (1 c).
7. A finishing adjustment device of a threaded core according to claim 1, characterized in that said through hole (2c) is a stepped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122577640.7U CN216298201U (en) | 2021-10-25 | 2021-10-25 | Fine adjustment device for threaded mold core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122577640.7U CN216298201U (en) | 2021-10-25 | 2021-10-25 | Fine adjustment device for threaded mold core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216298201U true CN216298201U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122577640.7U Active CN216298201U (en) | 2021-10-25 | 2021-10-25 | Fine adjustment device for threaded mold core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216298201U (en) |
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2021
- 2021-10-25 CN CN202122577640.7U patent/CN216298201U/en active Active
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