CN113319232B - High-precision cold heading processing die for inner hexagon screws - Google Patents
High-precision cold heading processing die for inner hexagon screws Download PDFInfo
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- CN113319232B CN113319232B CN202110562683.XA CN202110562683A CN113319232B CN 113319232 B CN113319232 B CN 113319232B CN 202110562683 A CN202110562683 A CN 202110562683A CN 113319232 B CN113319232 B CN 113319232B
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- 230000008569 process Effects 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000004458 analytical method Methods 0.000 claims abstract description 6
- 238000004364 calculation method Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
- B21J13/03—Die mountings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/46—Making machine elements bolts, studs, or the like with heads
- B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
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- General Physics & Mathematics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
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Abstract
The invention discloses a high-precision cold heading processing die for inner hexagonal screws, which comprises a fixed seat and a mounting seat, wherein bearings are arranged in the fixed seat, a limiting hole A is formed in the fixed seat, the mounting seat is connected with the fixed seat through the bearings, the mounting seat is arranged between the fixed seats, die seats can be detachably connected to two sides of the mounting seat, an ultrasonic sensor sends an ultrasonic signal to the inside of a die core through an opening in the motion process of a mandril, the ultrasonic wave is reflected after contacting the inner wall of the die core, the accurate numerical value of the inner diameter of the die core can be measured in the motion process of the mandril according to the detection signal of the ultrasonic sensor and analysis and calculation, so that the internal specification of the die core can be detected after each cold heading process is finished, the production and forming precision of the screws is ensured, the die which is flexible and can be used one by one and one after the other and is matched with a quick reversing and replacing mechanism, the replacement of problem dies can be quickly finished, the down time is shortened, and the influence on the production efficiency is reduced.
Description
Technical Field
The invention relates to the technical field of cold heading, in particular to a high-precision cold heading processing die for an inner hexagon screw.
Background
The cold heading process is one of the pressure processing new processes of less or no cutting metal, it is a plastic deformation produced under the action of metal external force, and with the help of the mould, make the metal volume redistribute and shift, thus form the processing method of the necessary part or blank, the cold heading process is most suitable for producing the standard fasteners such as bolt, screw, nut, rivet, pin, etc., the cold heading is carried on under the normal temperature condition, the cold heading can make the mechanical property of the metal part improved, the socket head cap screw of the cylinder head, also called socket head screw, cup head screw, socket head screw, its name is different, but the meaning represented is the same, its head is socket head, also is cylinder head, divide the material into stainless steel and iron, stainless steel has stainless steel 202 socket head screw, this is the ordinary material of stainless steel, has stainless steel SUS304 socket head screw, stainless SUS316 socket head cap screws are used, and a cold heading processing die matched with a bush is usually used for production in the production process of the socket head cap screws.
The traditional cold heading processing die for the inner hexagon screw has the following defects in the using process, the traditional cold heading processing die for the inner hexagon screw is single in functionality and only has a basic workpiece forming function, the workpiece production speed is high, a finished product is generally detected in a sampling mode for batches of screws which are produced, the precision of an inner die core of the cold heading processing die is easy to change due to long-time use, the forming precision of the screw is influenced, the precision detection of the screw is carried out in the sampling mode, when the precision of the die is changed, the problem cannot be quickly found and the production is stopped, a large number of defective parts are easy to cause, the waste of resources and the increase of the production cost are caused, and when the precision problem occurs and needs to be checked and replaced, the long-time halt is needed to be carried out to facilitate the detection and replacement of the die, the time is wasted, and the production efficiency is influenced, therefore, a high-precision cold heading processing die for the socket head cap screws is provided.
Disclosure of Invention
The invention aims to overcome the prior defects and provides a high-precision inner hexagon screw cold heading processing die, wherein in the process of ejecting a blank out of an ejector rod, the end part of the ejector rod enters the interior of a die core, an ultrasonic sensor is arranged in the die core, a detection end is positioned in an opening, an ultrasonic signal can be sent to the interior of the die core through the opening in the motion process of the ejector rod, the ultrasonic wave is reflected after contacting the inner wall of the die core, the ultrasonic sensor comprehensively detects the interior of the die core along with the motion of the ejector rod and transmits the detection signal to external signal processing equipment, the accurate numerical value of the inner diameter of the die core can be measured in the motion process of the ejector rod according to the detection signal of the ultrasonic sensor and analysis and calculation and is compared with the required numerical value of the specification of the die core, so that the specification of the interior of the die core can be detected after each cold heading process is finished, and the operation can be found and stopped in time when the specification of the die core changes, guarantee the production shaping precision of screw, the die holder of mount pad one end is operating condition, carry out cold-heading operation with the cold heading machine cooperation to the stock, the other end die holder is for use, when the die holder of working end need maintain the change, only need take the gag lever post out, rotate the mount pad along the bearing, adjustment mount pad angle, make for use end one side die holder remove to the working end and carry out cold-heading processing, and the die holder that needs to maintain one end removes to the another side, reinsert the gag lever post this moment and can continue to carry out cold-heading operation, and can inspect and change the die holder that goes wrong at the cold-heading operation in-process, adopt nimble one with one and one spare mould and cooperate quick switching-over replacement mechanism, can be quick the change of completion problem mould, shorten down time, reduce the influence to production efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-precision inner hexagon screw cold heading processing die comprises a fixed seat and a mounting seat, wherein bearings are arranged inside the fixed seat, a limiting hole A is formed inside the fixed seat, the mounting seat is connected with the fixed seat through the bearings, the mounting seat is arranged between the fixed seats, die holders are detachably connected to two sides of the mounting seat, a limiting hole B corresponding to the limiting hole A is formed in one side, close to the mounting seat, inside the die holder, a limiting rod is inserted between the limiting hole A and the limiting hole B, a die core is arranged on one side, far away from the mounting seat, inside the die core, a die cavity is formed in the die core, a spring is arranged inside the die holder, the die holder is connected with an ejector rod in a matched mode through the spring, the ejector rod corresponds to the die cavity in position, an opening is formed in the surface of the ejector rod, the opening is formed in multiple numbers, the opening is located on one side, close to the die core, of the surface of the ejector rod, and an ultrasonic sensor is arranged in the ejector rod.
Preferably, inserting grooves are formed in two sides of the mounting seat, and one side, far away from the mold core, of the mold seat is inserted into the inserting grooves.
Preferably, the detection end of the ultrasonic sensor extends into the opening, and the signal output end of the ultrasonic sensor is connected with external signal processing equipment.
Preferably, the cold heading processing die for the high-precision inner hexagon screw comprises the following steps:
s1, before use, butting the mold cores at corresponding positions with the mold bases at different positions, arranging mold cavities with different specifications in the mold cores according to different stations, installing the corresponding mold cores at proper positions according to a cold heading process, installing the fixed seats at proper positions of a cold heading machine table, connecting the interiors of the mold cores with the installation seat and the mold bases through bearings, aligning the limiting holes B and the limiting holes A after the mold bases are installed, inserting limiting rods into the limiting holes B, fixing the positions of the installation seat and the mold bases, and completing installation of the mold;
s2, conveying the cold heading raw material by a conveying assembly of the cold heading machine, enabling the material to sequentially enter the die cavities of different process positions, and sequentially completing the processes of screw end pre-pressing, screw end forming, inner hexagon forming and screw integral forming under the action of the cold heading machine;
s3, in the cold heading process, the die pushes the blank to make the ejector rod move towards the inside of the die holder, the spring is compressed, after the cold heading process is completed, the die resets, the ejector rod resets under the action of the spring force to eject the blank in the die core and enter the next process, in the process of ejecting the blank by the ejector rod, the end part of the ejector rod enters the inside of the die core, the inside of the die core is provided with an ultrasonic sensor, the detection end is positioned in the opening, the ultrasonic signal can be sent out to the inside of the die core through the opening in the process of moving the ejector rod, the ultrasonic wave contacts the inner wall of the die core and then is reflected, along with the movement of the ejector rod, the ultrasonic sensor comprehensively detects the inside of the die core and transmits the detection signal to an external signal processing device, the accurate value of the inner diameter of the die core can be detected in the process of moving the ejector rod according to the detection signal of the ultrasonic sensor and the analysis and calculation, and comparison with the required value of the specification of the die core are carried out, the internal specification of the die core can be detected after the cold heading process is finished every time, and the operation can be found and stopped in time when the specification of the die core changes, so that the production forming precision of the screw is ensured;
S4, die holders are arranged on two sides of the mounting seat, during operation, the die holder at one end of the mounting seat is in a working state and is matched with a cold heading machine to perform cold heading operation on a blank, the die holder at the other end of the mounting seat is in a standby state, when the die holder at the working end needs to be maintained and replaced, the limiting rod only needs to be drawn out, the mounting seat is rotated along the bearing, and the angle of the mounting seat is adjusted, so that the die holder at one side of the standby end moves to the working end to perform cold heading processing, the die holder at one end needing to be maintained moves to the other side, the limiting rod is inserted again to continue the cold heading operation, the die holder with problems can be checked and replaced in the cold heading operation process, flexible dies with one use and one standby and matched with a quick reversing and replacing mechanism are adopted, the replacement of the dies with problems can be quickly completed, the shutdown time is shortened, and the influence on the production efficiency is reduced.
The invention has the following beneficial effects:
during the blank ejecting process of the ejector rod, the end part of the ejector rod enters the mold core, an ultrasonic sensor is arranged in the ejector rod, a detection end is positioned in the opening, an ultrasonic signal can be sent to the interior of the mold core through the opening during the moving process of the ejector rod, the ultrasonic wave is reflected after contacting the inner wall of the mold core, the ultrasonic sensor comprehensively detects the interior of the mold core along with the movement of the ejector rod and transmits the detection signal to an external signal processing device, the accurate numerical value of the inner diameter of the mold core can be measured during the moving process of the ejector rod according to the detection signal of the ultrasonic sensor and analyzed and calculated, and is compared with the required numerical value of the specification of the mold core, so that the internal specification of the mold core can be detected after each cold heading process is finished, the operation can be timely found and stopped when the specification of the mold core changes, the production and forming precision of the screw is ensured, a mold base at one end of the mounting base is in a working state and is matched with a cold heading machine to carry out the cold heading operation on the blank, the other end die holder is for use, when the die holder of work end need be maintained and changed, only need take the gag lever post out, rotate the mount pad along the bearing, adjust the mount pad angle, make end one side die holder for use remove to the work end and carry out cold-heading processing, and the die holder that needs to maintain one end removes to the another side, reinsert the gag lever post this moment and can continue to carry out the cold-heading operation, and can inspect and change the die holder that goes wrong at the cold-heading operation in-process, adopt nimble one with one spare mould and cooperate quick switching-over to change the mechanism, the change of completion problem mould that can be quick, shorten down time, reduce the influence to production efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of a high-precision socket head cap screw cold heading processing die.
Fig. 2 is a schematic structural view of a joint of a fixing seat and a mounting seat of the high-precision cold heading die for socket head cap screws.
Fig. 3 is a schematic view of the internal structure of the die holder of the high-precision cold heading die for socket head cap screws.
In the figure: 1. a fixed seat; 101. a bearing; 102. a limiting hole A; 2. a mounting seat; 201. inserting grooves; 3. a die holder; 301. a limiting hole B; 4. a mold core; 401. a mold cavity; 5. a limiting rod; 6. a spring; 7. a top rod; 701. opening a hole; 8. an ultrasonic sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A high-precision cold heading processing die for inner hexagon screws comprises a fixed seat and a mounting seat, wherein bearings are arranged inside the fixed seat, a limiting hole A is formed in the fixed seat, the mounting seat is connected with the fixed seat through the bearings, the mounting seat is arranged between the fixed seats, die holders are detachably connected to two sides of the mounting seat, a limiting hole B corresponding to the position of the limiting hole A is formed in one side, close to the mounting seat, of the interior of each die holder, a limiting rod is inserted between the limiting hole A and the limiting hole B, a die core is arranged on one side, far away from the mounting seat, of the interior of each die holder, a die cavity is formed in the interior of each die holder, a spring is arranged in the interior of each die holder, each die holder is connected with a mandril in a matching mode through the spring, the mandril corresponds to the position of the die cavity, openings are formed in the surface of the mandril, a plurality of the openings are formed in the surface of the mandril, close to the die core, and an ultrasonic sensor is arranged in the ejector rod.
Preferably, inserting grooves are formed in two sides of the mounting seat, and one side, far away from the mold core, of the mold seat is inserted into the inserting grooves.
Preferably, the detection end of the ultrasonic sensor extends into the opening, and the signal output end of the ultrasonic sensor is connected with external signal processing equipment.
Preferably, the cold heading processing die for the high-precision inner hexagon screw comprises the following steps:
s1, before use, butting the mold cores at corresponding positions with the mold bases at different positions, arranging mold cavities with different specifications in the mold cores according to different stations, installing the corresponding mold cores at proper positions according to a cold heading process, installing the fixed seats at proper positions of a cold heading machine table, connecting the interiors of the mold cores with the installation seat and the mold bases through bearings, aligning the limiting holes B and the limiting holes A after the mold bases are installed, inserting limiting rods into the limiting holes B, fixing the positions of the installation seat and the mold bases, and completing installation of the mold;
s2, conveying the cold heading raw material by a conveying assembly of the cold heading machine, enabling the material to sequentially enter the die cavities of different process positions, and sequentially completing the processes of screw end pre-pressing, screw end forming, inner hexagon forming and screw integral forming under the action of the cold heading machine;
S3, in the process of cold heading, the die pushes the blank to make the mandril move towards the inside of the die holder, the spring is compressed, after the cold heading, the die resets, the mandril resets under the action of spring force to push out the blank in the die core and enter the next procedure, in the process of ejecting the blank by the mandril, the end part of the mandril enters the inside of the die core, the inside of the die core is provided with an ultrasonic sensor, the detection end is positioned in the opening, ultrasonic signals can be sent out to the inside of the die core through the opening in the process of moving the mandril, the ultrasonic waves are reflected after contacting the inner wall of the die core, along with the movement of the mandril, the ultrasonic sensor comprehensively detects the inside of the die core and transmits the detection signals to an external signal processing device, the accurate numerical value of the inner diameter of the die core can be measured in the process of moving the mandril according to the detection signals of the ultrasonic sensor and the analysis and calculation, and comparison with the required numerical value of the specification of the die core can be carried out, the internal specification of the mold core can be detected after the cold heading process is finished every time, and the operation can be found and stopped in time when the specification of the mold core changes, so that the production forming precision of the screw is ensured;
s4, die holders are arranged on two sides of the mounting seat, during operation, the die holder at one end of the mounting seat is in a working state and is matched with a cold heading machine to perform cold heading operation on a blank, the die holder at the other end of the mounting seat is in a standby state, when the die holder at the working end needs to be maintained and replaced, the limiting rod only needs to be drawn out, the mounting seat is rotated along the bearing, and the angle of the mounting seat is adjusted, so that the die holder at one side of the standby end moves to the working end to perform cold heading processing, the die holder at one end needing to be maintained moves to the other side, the limiting rod is inserted again to continue the cold heading operation, the die holder with problems can be checked and replaced in the cold heading operation process, flexible dies with one use and one standby and matched with a quick reversing and replacing mechanism are adopted, the replacement of the dies with problems can be quickly completed, the shutdown time is shortened, and the influence on the production efficiency is reduced.
In conclusion: the invention provides a high-precision inner hexagon screw cold heading processing die, in the process of ejecting a blank by an ejector rod, the end part of the ejector rod enters the interior of a die core, an ultrasonic sensor is arranged in the die core, a detection end is positioned in an opening, an ultrasonic signal can be sent to the interior of the die core through the opening in the motion process of the ejector rod, the ultrasonic wave is reflected after contacting the inner wall of the die core, along with the motion of the ejector rod, the ultrasonic sensor comprehensively detects the interior of the die core and transmits the detection signal to external signal processing equipment, the accurate numerical value of the inner diameter of the die core can be measured in the motion process of the ejector rod according to the detection signal of the ultrasonic sensor and analysis and calculation, and is compared with the required numerical value of the specification of the die core, so that the specification of the interior of the die core can be detected after each cold heading process is finished, the operation can be found and stopped in time when the specification of the die core changes, the production and forming precision of screws can be ensured, the die holder of mount pad one end is operating condition, carry out cold heading operation with the cold heading machine cooperation to the stock, other end die holder is for use, when the die holder of work end need be maintained and changed, only need take the gag lever post out, rotate the mount pad along the bearing, adjustment mount pad angle, make for use to move to the work end and carry out cold heading processing for end one side die holder, and the die holder that needs to maintain one end removes to the another side, insert the gag lever post again this moment and can continue to carry out cold heading operation, and can inspect and change the die holder that goes wrong at the cold heading operation in-process, adopt nimble one-purpose one-standby mould and cooperation quick switching-over change mechanism, the change of completion problem mould that can be quick, shorten down time, reduce the influence to production efficiency.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides a high accuracy socket head cap screw cold-heading mold processing, includes fixing base (1) and mount pad (2), its characterized in that: the die comprises a fixed seat (1), bearings (101) are arranged inside the fixed seat (1), limiting holes A (102) are formed inside the fixed seat (1), a mounting seat (2) is connected with the fixed seat (1) through the bearings (101), the mounting seat (2) is arranged between the fixed seats (1), die holders (3) are detachably connected to two sides of the mounting seat (2), a limiting hole B (301) corresponding to the limiting hole A (102) is formed in one side, close to the mounting seat (2), of the interior of each die holder (3), a limiting rod (5) is inserted between the limiting hole A (102) and the limiting hole B (301), a die core (4) is arranged on one side, far away from the mounting seat (2), of the interior of each die holder (3), a die cavity (401) is formed in the interior of each die core (4), a spring (6) is arranged in the die holder (3), and an ejector rod (7) is connected to the die holder (3) through the spring (6) in a matched mode, the ejector rod (7) corresponds to the mold cavity (401), a plurality of open holes (701) are formed in the surface of the ejector rod (7), the open holes (701) are formed in the surface of the ejector rod (7) and close to the mold core (4), and the ultrasonic sensor (8) is installed inside the ejector rod (7);
The use steps of the high-precision inner hexagon screw cold heading processing die are as follows: s1, before use, the mold core (4) at the corresponding position is butted with the mold bases (3) at different positions, mold cavities (401) with different specifications are arranged in the mold core (4) according to different stations, the corresponding mold core (4) is installed at a proper position according to a cold heading process, the fixing base (1) is installed at a proper position of a cold heading machine table, the interior of the fixing base is connected with the installation base (2) and the mold bases (3) through bearings (101), after the mold bases (3) are installed, the limiting holes B (301) and the limiting holes A (102) are aligned and inserted into limiting rods (5), and then the positions of the installation base (2) and the mold bases (3) are fixed, and the installation of the mold is completed;
s2, conveying the cold heading raw material by a conveying assembly of the cold heading machine, enabling the material to sequentially enter the die cavities (401) at different working procedure positions, and sequentially completing the working procedures of screw end portion prepressing, screw end portion forming, inner hexagon forming and screw integral forming under the action of the cold heading machine;
s3, in the cold heading process, the die pushes the blank to enable the ejector rod (7) to move towards the inside of the die holder (3), the spring (6) is compressed, after the cold heading process is finished, the die resets, the ejector rod (7) resets under the elastic action of the spring (6) to eject the blank in the die core (4) and enter the next process, in the blank ejecting process of the ejector rod (7), the end part of the ejector rod (7) enters the inside of the die core (4), the ultrasonic sensor (8) is installed in the ejector rod, the detection end is located in the opening (701), an ultrasonic signal can be sent to the inside of the die core (4) through the opening (701) in the moving process of the ejector rod (7), the ultrasonic wave contacts the inner wall of the die core (4) and then reflects, along with the movement of the ejector rod (7), the ultrasonic sensor (8) comprehensively detects the inside of the die core (4) and transmits the detection signal to an external signal processing device, according to the detection signal of the ultrasonic sensor (8), the precise numerical value of the inner diameter of the mold core (4) can be measured in the movement process of the ejector rod (7) through analysis and calculation, and is compared with the required numerical value of the specification of the mold core (4), so that the internal specification of the mold core (4) can be detected after the cold heading process is completed every time, the operation can be found and stopped in time when the specification of the mold core (4) changes, and the production forming precision of the screw is ensured;
S4, die holders (3) are arranged on both sides of a mounting seat (2), when the die holders (3) at one end of the mounting seat (2) are in a working state and are matched with a cold heading machine to carry out cold heading operation on a blank, the die holders (3) at the other end are in a standby state, when the die holders (3) at the working end need to be maintained and replaced, only the limiting rods (5) need to be drawn out, the mounting seat (2) is rotated along a bearing (101), the angle of the mounting seat (2) is adjusted, so that the die holders (3) at one side of the standby end are moved to the working end to carry out cold heading processing, the die holders (3) at one end needing to be maintained are moved to the other side, the limiting rods (5) are inserted again to continue to carry out cold heading operation, the die holders (3) with problems can be checked and replaced in the cold heading operation process, flexible dies which are used and matched with a quick reversing replacement mechanism are adopted, and the replacement of the dies with the quick reversing replacement mechanism can be completed quickly, the down time is shortened, and the influence on the production efficiency is reduced.
2. The cold heading die for the high-precision inner hexagon screw as claimed in claim 1, wherein the die comprises: inserting grooves (201) are formed in the two sides of the mounting seat (2), and one side, far away from the mold core (4), of the mold base (3) is inserted into the inserting grooves (201).
3. The cold heading die for the high-precision inner hexagon screw as claimed in claim 1, wherein the die comprises: the detection end of the ultrasonic sensor (8) extends into the opening (701), and the signal output end of the ultrasonic sensor (8) is connected with external signal processing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110562683.XA CN113319232B (en) | 2021-05-24 | 2021-05-24 | High-precision cold heading processing die for inner hexagon screws |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110562683.XA CN113319232B (en) | 2021-05-24 | 2021-05-24 | High-precision cold heading processing die for inner hexagon screws |
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| CN113319232A CN113319232A (en) | 2021-08-31 |
| CN113319232B true CN113319232B (en) | 2022-06-28 |
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| CN202110562683.XA Active CN113319232B (en) | 2021-05-24 | 2021-05-24 | High-precision cold heading processing die for inner hexagon screws |
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| CN115846580B (en) * | 2022-12-16 | 2023-09-12 | 江苏新成标准件有限公司 | High-strength bolt cold heading equipment and process for preparing bolt by using same |
| CN115889663B (en) * | 2023-03-14 | 2023-06-02 | 江苏新成标准件有限公司 | Hot forging forming process for head of socket head cap screw and die structure thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357640A (en) * | 2011-10-12 | 2012-02-22 | 章升谊 | Continuous cold heading once near-net-shape forming die assembly of valve spring seat |
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| CN207952371U (en) * | 2017-11-28 | 2018-10-12 | 九江仁玺高分子材料有限公司 | A kind of hydraulic pressure Bending Mould |
| CN208004504U (en) * | 2017-10-11 | 2018-10-26 | 天津天合共创科技有限公司 | A kind of device for adjusting wall thickness of hot rolled steel tube |
| CN212494918U (en) * | 2020-06-19 | 2021-02-09 | 天津市凯达模具有限公司 | Metal product arc bending hardware mould |
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2021
- 2021-05-24 CN CN202110562683.XA patent/CN113319232B/en active Active
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| CN102357640A (en) * | 2011-10-12 | 2012-02-22 | 章升谊 | Continuous cold heading once near-net-shape forming die assembly of valve spring seat |
| CN105127355A (en) * | 2015-09-17 | 2015-12-09 | 宾科汽车紧固件（昆山）有限公司 | Electronic parking drive bolt cold heading device and machining method thereof |
| CN106064282A (en) * | 2016-07-13 | 2016-11-02 | 吉林大学 | Joint for resistance spot welding quality ultrasound ripple online monitoring system and method |
| CN208004504U (en) * | 2017-10-11 | 2018-10-26 | 天津天合共创科技有限公司 | A kind of device for adjusting wall thickness of hot rolled steel tube |
| CN207952371U (en) * | 2017-11-28 | 2018-10-12 | 九江仁玺高分子材料有限公司 | A kind of hydraulic pressure Bending Mould |
| CN212494918U (en) * | 2020-06-19 | 2021-02-09 | 天津市凯达模具有限公司 | Metal product arc bending hardware mould |
Also Published As
| Publication number | Publication date |
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| CN113319232A (en) | 2021-08-31 |
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Denomination of invention: A high-precision cold heading processing mold for hexagonal socket screws Effective date of registration: 20231102 Granted publication date: 20220628 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Jiaxing Haiyan sub branch Pledgor: Haiyan South Standard Parts Co.,Ltd. Registration number: Y2023980063649 |