CN116372074A - Processing technology of suspension clamp - Google Patents
Processing technology of suspension clamp Download PDFInfo
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- CN116372074A CN116372074A CN202310393317.5A CN202310393317A CN116372074A CN 116372074 A CN116372074 A CN 116372074A CN 202310393317 A CN202310393317 A CN 202310393317A CN 116372074 A CN116372074 A CN 116372074A
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- 239000000725 suspension Substances 0.000 title claims abstract description 40
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000005242 forging Methods 0.000 claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 12
- 230000032683 aging Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 238000005422 blasting Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 238000004321 preservation Methods 0.000 claims abstract description 4
- 230000000670 limiting effect Effects 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000007493 shaping process 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
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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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
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
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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
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a processing technology of a suspension clamp, which comprises the steps of firstly heating round materials of 6082 aluminum to 480-490 ℃ for 2-10 hours, adopting a friction press to control a die to forge during hot forging, placing a workpiece into a heating furnace after primary forging, carrying out secondary forging again when the temperature reaches 480 ℃, placing the workpiece into the heating furnace after secondary forging forming, and carrying out tertiary forging again after the temperature reaches 480 ℃; removing burrs and burrs of the workpiece after forging, and polishing; heat treatment, feeding into a solution furnace, setting the solution temperature to 530 ℃, and preserving heat for 5 hours; then the mixture is sent into an aging furnace, the aging temperature is set to 180 ℃, and the heat preservation time is 10 hours; and (5) performing surface shot blasting treatment on the workpiece after the heat treatment to finish machining. The method has the advantages that the process is perfect, the strength of the forged product meets the product requirement by combining a three-time forging mode with a subsequent heat treatment process, and meanwhile, the forging die is improved, so that the service life of the forging die is prolonged.
Description
Technical Field
The invention relates to the field of electric power fittings, in particular to a processing technology of a suspension clamp.
Background
In the past suspension clamp in the course of working, adopt forging aluminium to carry out hot forging shaping, the general forging mode hardly guarantees product strength, moreover after forging through forging mould, need be ejecting from the lower mould with the blank of suspension clamp through ejection mechanism, make things convenient for operating personnel to get the material, send into next process and carry out next processing, but in the past ejecting is that lower mould adopts cylinder top support plate below, the layer board drives the ejector pin and goes up, it is down to reset to rely on the spring to promote the layer board, the layer board is floated from top to bottom and is required the movable region, then need open a groove that supplies the layer board to float in the lower mould bottom, lead to the whole rigidity of lower mould to be insufficient, after using a period, just lead to lower mould fracture, deformation scheduling problem, lead to the product disqualification, need change the lower mould, can not satisfy long-term forging production needs. Moreover, the prior supporting plate does not have guiding in the up-down floating action, is easy to interfere with the inner wall of the groove, causes the deformation of the supporting plate, also damages the lower die, aggravates the problems of cracking and deformation of the lower die, causes the deformation of the supporting plate, causes the problem of cracking of the ejector rod at the root welding part, can not work continuously, and also needs to be replaced, so that the die needs to be disassembled, thereby wasting time and labor; and the supporting plate is not limited in ascending, and the spring is always compressed, so that the whole lower die continuously bears a large force, and the problem of deformation and cracking of the lower die is also solved.
Disclosure of Invention
In order to solve the technical problems, the invention provides a processing technology of a suspension clamp, which is reasonable in technology, and the strength of a workpiece meets the requirement of product indexes; meanwhile, the forging die is reasonable and compact, the overall strength is improved, and the service life of the die is prolonged.
The technical scheme of the invention is as follows:
a processing technology of a suspension clamp comprises the following specific steps,
1) Firstly, before hot forging, heating round materials of 6082 aluminum to 480-490 ℃ uniformly for 2-10 hours;
2) During hot forging, a friction press is used for controlling the die forging, heated round materials are placed in grooves of the convex profiles of the imitated suspension clamps of the lower die of the forging die, the friction press is used for controlling the upper die to descend, the protrusions of the groove profiles of the imitated suspension clamps of the upper die and the grooves of the convex profiles of the imitated suspension clamps of the lower die squeeze the forged workpiece mutually, the die is opened after die assembly is completed in place, the demolding part ejects the workpiece, and the workpiece is taken out;
after hot forging, carefully checking the size, appearance and centering of an upper die and a lower die of the forging;
3) After the primary forging, placing the workpiece into a heating furnace, and carrying out secondary forging again when the temperature reaches 480 ℃, 4) after the forging is finished, removing burrs and burrs on the workpiece, and then polishing;
5) Heat treatment, feeding into a solution furnace, setting the solution temperature to 530 ℃, and preserving heat for 5 hours; then the mixture is sent into an aging furnace, the aging temperature is set to 180 ℃, and the heat preservation time is 10 hours;
6) And (5) performing surface shot blasting treatment on the workpiece after the heat treatment to finish machining.
The forging process should be continuously oiled and cooled to the die cavity so as to prevent the product from being embedded into the die.
And after the secondary forging forming, placing the workpiece into a heating furnace, heating to 480 ℃, and forging again for the third time.
The forging die comprises an upper die, a lower die and a demoulding part, wherein an arc-shaped groove which is communicated with each other from front to back is arranged in the middle of the lower end of the upper die, and a protrusion which imitates the groove profile of a suspension clamp in the left-right direction is arranged in the middle of the arc-shaped groove; the lower die is arranged below the upper die, an arc-shaped bulge in the front-back direction is arranged in the middle of the lower die, a groove imitating the convex profile of the suspension clamp in the left-right direction is arranged in the middle of the arc-shaped bulge, and two ejection holes are respectively formed in the two sides of the lowest end of the groove; the bottom of the lower end of the lower die is also provided with a demoulding part, the demoulding part comprises a demoulding bottom plate, ejector rods, springs and a supporting plate, the demoulding bottom plate is arranged at the lower end of the lower die, a rectangular hole is formed in the middle of the demoulding bottom plate, the supporting plate is arranged in the rectangular hole in a floating mode, two ejector rods are arranged on the supporting plate, the upper ends of the two ejector rods respectively extend into the two ejection holes of the lower die correspondingly, and the two ejector rods are flush with the lowest end of a groove of a convex profile of an imitation suspension clamp; four spring slots are designed at the lower end of the lower die, a spring is placed in each spring slot, one end of each spring is propped against the bottom of the spring slot, and the other end of each spring is propped against the upper surface of the supporting plate; the support plate comprises an upper support plate, a lower support plate and limiting guide bolts, four corners of the upper support plate and the lower support plate are locked and connected through fixing bolts, two ejector rods are inserted on the upper support plate, the lower ends of the ejector rods are propped against the upper surface of the lower support plate, the limiting guide bolts are designed to be two, each limiting guide bolt comprises a bolt head, a screw rod and a guide rod, the upper ends of the bolt heads are connected with the screw rods, the upper ends of the screw rods are connected with the guide rods, annular steps are formed on the lower ends of the guide rods and the upper ends of the screw rods in a circle, two guide slotted holes are designed in the lower die, two through holes are formed in the upper support plate, the limiting guide bolts penetrate through the through holes of the lower support plate and penetrate through screw holes of the upper support plate in a rotating mode through the screw rods, and the guide rods at the tops of the limiting guide bolts are correspondingly inserted into the guide slotted holes of the lower die in a sliding mode.
Two rectangular notches are respectively formed in two sides of the lower supporting plate, two rectangular grooves are also designed on two sides of the rectangular hole corresponding to the rectangular notches, one side of each rectangular groove is communicated with the inner side wall of the rectangular hole, the lower end opening of each rectangular groove is communicated with the lower surface of the demolding bottom plate, a rectangular supporting block is arranged in each rectangular groove, one end of each rectangular supporting block is arranged in each rectangular groove, the other end of each rectangular supporting block extends into the rectangular hole, an L-shaped step is designed on the other end of each rectangular supporting block, and each rectangular supporting block is lifted in the rectangular notch of the lower supporting plate through the L-shaped step.
The upper supporting plate is provided with two positioning through holes for the ejector rods to be inserted, the inner side of the lower port part of the positioning through hole is also provided with a circular clamping groove, the bottom of the ejector rod is provided with an upsetting round cap, the upper end of the ejector rod passes through the positioning through holes and the round cap of the ejector rod is clamped in the circular clamping groove, and the round cap is packaged in the circular clamping groove after the upper supporting plate is fixedly connected with the lower supporting plate.
Four grooves are formed in four corners of the upper die, four protrusions are arranged in four corners of the lower die, and the four protrusions are mutually buckled and matched with the four grooves.
The upper part of the arc-shaped bulge of the lower die is provided with a vertical column close to two sides respectively, two through holes are correspondingly designed in the arc-shaped groove of the upper die, and the vertical column is inserted into the through holes on the corresponding sides in a sliding guide fit manner; the bottom of the upright post is provided with an annular boss in a peripheral manner, the arc-shaped boss of the lower die is provided with a positioning through hole for the installation of the upright post, the lower port part of the positioning through hole is provided with an annular groove, the upper end of the upright post passes through the positioning through hole, and the annular boss at the lower end of the upright post is clamped in the annular groove.
When the forging die is demolded, the upper die is reset upwards, the demolding part starts to act, the lower ejection cylinder or the oil cylinder pushes the supporting plate to drive the ejector rod to move upwards through the telescopic end of the ejection cylinder or the oil cylinder, the supporting force of the four springs is overcome, meanwhile, the guide rods of the limit guide bolts are guided by the guide grooves, and when the guide bolts are pushed upwards in place, a circle of annular steps of the limit guide bolts are pushed against the lower die, so that excessive ejection is prevented; the top of the ejector rod is propped against two points at the lower end of the workpiece, the workpiece is ejected out of a groove of a convex profile of the simulated suspension clamp, and the forged workpiece is taken out; the ejection cylinder or the oil cylinder is reset, and the supporting plate is simultaneously reset in a descending way under the reaction force of the spring.
The invention has the advantages that: the process is perfect, the strength of the forged product meets the product requirement by combining a three-time forging mode with a subsequent heat treatment process, and meanwhile, the forging die is improved, so that the service life of the forging die is prolonged; the demoulding part is provided with a demoulding bottom plate, and a rectangular hole for the supporting plate to float up and down is arranged in the middle of the demoulding bottom plate, so that the integral rigidity of the lower die is ensured, the lower die is not easy to deform or crack, the service life of the die is prolonged, and the production requirement of products is met; the supporting plates are designed into an upper supporting plate and a lower supporting plate, the lower end of the ejector rod is directly inserted between the upper supporting plate and the lower supporting plate, welding and nut fixing are not needed, the installation is extremely convenient, and the round cap at the lower end of the ejector rod is designed to prevent the ejector rod from falling off; the guide rod of the limit guide bolt is designed to be in sliding fit with the guide groove of the lower die, so that the support plate is ensured to float up and down stably, interference cannot be generated, safety and reliability are realized, and meanwhile, the annular step of the limit guide bolt is designed to be blocked at the outer side of the guide notch part, so that the ejection limiting effect is realized.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a perspective view of the lower die of the present invention.
Fig. 4 is a schematic top view of the lower die of the present invention.
Fig. 5 is a perspective view of an upper die of the present invention.
Fig. 6 is a schematic vertical sectional view at two ejector pins of the present invention.
Fig. 7 is a schematic vertical sectional view at two limit guide bolts of the present invention.
Fig. 8 is a schematic vertical sectional view at two springs of the present invention.
Fig. 9 is a schematic bottom view of the lower die of the present invention.
Fig. 10 is a schematic view of a stripper floor of a stripper portion of the present invention.
Fig. 11 is a perspective view of a suspension clamp of the present invention.
Description of the embodiments
Referring to fig. 1-11, a suspension clamp forging die comprises an upper die 1, a lower die 2 and a demoulding part 3, wherein an arc-shaped groove 4 which is communicated with each other from front to back is arranged in the middle of the lower end of the upper die 1, and a protrusion 5 which imitates the groove profile of a suspension clamp in the left-right direction is arranged in the middle of the arc-shaped groove 4; the lower die 2 is arranged below the upper die 1, an arc-shaped bulge 7 in the front-back direction is arranged in the middle of the lower die 2, a groove 9 imitating the bulge profile of the suspension clamp in the left-right direction is arranged in the middle of the arc-shaped bulge 7, and two ejection holes 8 are respectively formed in the two sides of the lowest end of the groove; the bottom of the lower end of the lower die 2 is also provided with a demoulding part 3, the demoulding part 3 comprises a demoulding bottom plate 31, ejector rods 32, springs 33 and a supporting plate 34, the demoulding bottom plate 31 is arranged at the lower end of the lower die 2, a rectangular hole 311 is formed in the middle of the demoulding bottom plate 31, the supporting plate 34 is floatingly arranged in the rectangular hole 311, two ejector rods 32 are arranged on the supporting plate 34, the upper ends of the two ejector rods 32 respectively extend into the two ejection holes 8 of the lower die 2 correspondingly, and the two ejector rods 32 are flush with the lowest end of a groove 9 imitating a convex profile of a suspension clamp; four spring slots 26 are designed at the lower end of the lower die 2, a spring 33 is placed in each spring slot 26, one end of each spring 33 is propped against the bottom of the spring slot 26, and the other end of each spring 33 is propped against the upper surface of the supporting plate 34; the support plate 34 comprises an upper support plate 341, a lower support plate 342 and limiting guide bolts 35, four corners of the upper support plate 341 and the lower support plate 342 are in locking connection through fixing bolts 343, two ejector rods 32 are inserted onto the upper support plate 341, the lower ends of the ejector rods 32 are propped against the upper surface of the lower support plate 342, the limiting guide bolts 35 are designed to be two, each limiting guide bolt 35 comprises a bolt head, a screw rod and a guide rod 351, the upper ends of the bolt heads are connected with the screw rods, the upper ends of the screw rods are connected with the guide rods 351, the lower ends of the guide rods 351 are connected with the upper ends of the screw rods in a circle to form annular steps 352, the lower die 2 is designed with two guide slotted holes 22, the lower support plate 342 is provided with two through holes, two screw holes are designed on the upper support plate 341, and the limiting guide bolts 35 pass through the screw holes of the lower support plate 342 and pass through the screw rods in a rotating mode, and the guide rods 351 at the tops of the limiting guide bolts 35 are correspondingly inserted into the guide slotted holes 22 of the lower die 2 in a sliding mode.
Two rectangular notches 3421 are respectively formed on two sides of the lower support plate 342, two rectangular grooves 3111 are also designed on two sides of the rectangular hole 311 corresponding to the rectangular notches 3421, one side of each rectangular groove 3111 is communicated with the inner side wall of the rectangular hole 311, the lower end opening of each rectangular groove 3111 is communicated with the lower surface of the demoulding bottom plate 31, a rectangular support block 36 is mounted in each rectangular groove 3111, one end of each rectangular support block 36 is mounted in each rectangular groove 3111, the other end of each rectangular support block 36 extends into the rectangular hole 311, an L-shaped step 361 is designed on the other end of each rectangular support block 36, and each rectangular support block 36 is lifted in the rectangular notch 3421 of the lower support plate 342 through the corresponding L-shaped step 361.
The upper supporting plate 341 is provided with two positioning through holes for inserting the ejector rods 32, the inner side of the lower port part of the positioning through holes is also provided with a circular clamping groove 3411, the bottom of the ejector rods 32 is provided with an upsetting round cap 321, the upper ends of the ejector rods 32 penetrate through the positioning through holes and the round cap 321 of the ejector rods 32 is clamped in the circular clamping groove 3411, and the round cap 321 is packaged in the circular clamping groove 3411 after the upper supporting plate 341 is fixedly connected with the lower supporting plate 342.
Four grooves 11 are formed in four corners of the upper die 1, four protrusions 21 are formed in four corners of the lower die 2, and the four protrusions 21 are mutually buckled and matched with the four grooves 11.
The upper surface of the arc-shaped bulge of the lower die 2 is provided with a stand column 23 close to two sides respectively, two through holes are correspondingly designed in the arc-shaped groove of the upper die 1, and the stand column 23 is slidably inserted into the through holes on the corresponding sides for sliding guide fit. The bottom of the upright post 23 is provided with an annular boss 24 in a peripheral manner, the arc-shaped bulge of the lower die is provided with a positioning through hole for the installation of the upright post, the lower port part of the positioning through hole is provided with an annular groove 25, the upper end of the upright post 23 passes through the positioning through hole, and the annular boss 24 at the lower end of the upright post is clamped in the annular groove 25.
A processing technology of a suspension clamp comprises the following specific steps,
1) Firstly, before hot forging, heating round materials of 6082 aluminum to 480-490 ℃ uniformly for 2-10 hours;
2) During hot forging, a friction press is used for controlling the die forging, the integral forging die is arranged on the friction press, an ejection cylinder or an oil cylinder is arranged at the lower end position of the demolding part corresponding to the upper surface of a machine tool of the friction press, the ejection cylinder or the oil cylinder is used for pushing an ejector rod to move upwards to place heated round materials in a groove of a convex profile of an imitated suspension clamp of a lower die of the forging die, the friction press is used for controlling an upper die to move downwards, the convex of the groove profile of the imitated suspension clamp of the upper die and the groove of the convex profile of the imitated suspension clamp of the lower die press mutually squeeze a forged workpiece, the upper die is opened after die assembly is completed in place, the upper die moves upwards, the demolding part starts to act, the ejector cylinder or the oil cylinder pushes the supporting plate to move upwards through the ejection cylinder or the oil cylinder, the supporting force of four springs is overcome, meanwhile, a guide rod of a limit guide bolt is guided in a guide groove, and when the ejector rod is pushed upwards in place, a circle of a limit guide screw is pushed upwards under the lower die, and excessive ejection is prevented; the top of the ejector rod is propped against two points at the lower end of the workpiece, the workpiece is ejected out of the groove 9 of the convex profile of the simulated suspension clamp, and the forged workpiece is taken out; the ejection cylinder or the oil cylinder is reset, and the supporting plate simultaneously descends and resets under the reaction force of the spring; after hot forging, carefully checking the size, appearance and centering of an upper die and a lower die of the forging; the forging process is characterized in that the die cavity is oiled and cooled continuously so as to prevent the product from being embedded into the die;
3) After primary forging, placing the workpiece into a heating furnace, and carrying out secondary forging again when the temperature reaches 480 ℃;
4) After forging, removing burrs and burrs of the workpiece, and polishing;
5) Heat treatment, feeding into a solution furnace, setting the solution temperature to 530 ℃, and preserving heat for 5 hours; then the mixture is sent into an aging furnace, the aging temperature is set to 180 ℃, and the heat preservation time is 10 hours;
6) And (3) carrying out surface shot blasting treatment on the workpiece after heat treatment, finishing processing, and forging to obtain the product with the strength of 8kN.
In the forging step, after the secondary forging forming, the workpiece is placed into a heating furnace to be heated to 480 ℃, and then is forged for three times, and after the secondary forging, the third forging can be performed, and whether the third forging is needed or not is determined according to the size of the workpiece and the strength of a later-stage forged product.
Claims (9)
1. A processing technology of a suspension clamp is characterized by comprising the following specific steps of,
1) Firstly, before hot forging, heating round materials of 6082 aluminum to 480-490 ℃ uniformly for 2-10 hours;
2) During hot forging, a friction press is used for controlling the die forging, heated round materials are placed in grooves of the convex profiles of the imitated suspension clamps of the lower die of the forging die, the friction press is used for controlling the upper die to descend, the protrusions of the groove profiles of the imitated suspension clamps of the upper die and the grooves of the convex profiles of the imitated suspension clamps of the lower die squeeze the forged workpiece mutually, the die is opened after die assembly is completed in place, the demolding part ejects the workpiece, and the workpiece is taken out;
after hot forging, carefully checking the size, appearance and centering of an upper die and a lower die of the forging;
3) After primary forging, placing the workpiece into a heating furnace, and carrying out secondary forging again when the temperature reaches 480 ℃;
4) After forging, removing burrs and burrs of the workpiece, and polishing;
5) Heat treatment, feeding into a solution furnace, setting the solution temperature to 530 ℃, and preserving heat for 5 hours; then the mixture is sent into an aging furnace, the aging temperature is set to 180 ℃, and the heat preservation time is 10 hours;
6) And (5) carrying out surface shot blasting treatment on the workpiece after heat treatment, and finishing processing.
2. The process of claim 1, wherein the die cavity is continuously oiled and cooled during the forging process to avoid product embedding into the die.
3. The process for manufacturing the suspension clamp according to claim 1, wherein after the secondary forging forming, the workpiece is put into a heating furnace to be heated to 480 ℃ and then subjected to the third forging again.
4. The processing technology of the suspension clamp according to claim 1, wherein the forging die comprises an upper die, a lower die and a demoulding part, wherein an arc-shaped groove which is communicated with each other from front to back is arranged in the middle of the lower end of the upper die, and a protrusion of a groove profile of the suspension clamp is arranged in the middle of the arc-shaped groove in the left-right direction; the lower die is arranged below the upper die, an arc-shaped bulge in the front-back direction is arranged in the middle of the lower die, a groove imitating the convex profile of the suspension clamp in the left-right direction is arranged in the middle of the arc-shaped bulge, and two ejection holes are respectively formed in the two sides of the lowest end of the groove; the bottom of the lower end of the lower die is also provided with a demoulding part, the demoulding part comprises a demoulding bottom plate, ejector rods, springs and a supporting plate, the demoulding bottom plate is arranged at the lower end of the lower die, a rectangular hole is formed in the middle of the demoulding bottom plate, the supporting plate is arranged in the rectangular hole in a floating mode, two ejector rods are arranged on the supporting plate, the upper ends of the two ejector rods respectively extend into the two ejection holes of the lower die correspondingly, and the two ejector rods are flush with the lowest end of a groove of a convex profile of an imitation suspension clamp; four spring slots are designed at the lower end of the lower die, a spring is placed in each spring slot, one end of each spring is propped against the bottom of the spring slot, and the other end of each spring is propped against the upper surface of the supporting plate; the support plate comprises an upper support plate, a lower support plate and limiting guide bolts, four corners of the upper support plate and the lower support plate are locked and connected through fixing bolts, two ejector rods are inserted on the upper support plate, the lower ends of the ejector rods are propped against the upper surface of the lower support plate, the limiting guide bolts are designed to be two, each limiting guide bolt comprises a bolt head, a screw rod and a guide rod, the upper ends of the bolt heads are connected with the screw rods, the upper ends of the screw rods are connected with the guide rods, annular steps are formed on the lower ends of the guide rods and the upper ends of the screw rods in a circle, two guide slotted holes are designed in the lower die, two through holes are formed in the upper support plate, the limiting guide bolts penetrate through the through holes of the lower support plate and penetrate through screw holes of the upper support plate in a rotating mode through the screw rods, and the guide rods at the tops of the limiting guide bolts are correspondingly inserted into the guide slotted holes of the lower die in a sliding mode.
5. The processing technology of the suspension clamp according to claim 4, wherein two rectangular notches are respectively formed on two side edges of the lower supporting plate, two rectangular grooves are also formed on two sides of the rectangular hole and correspond to the rectangular notches, one side of each rectangular groove is communicated with the inner side wall of the rectangular hole, the lower end opening of each rectangular groove is communicated with the lower surface of the demoulding bottom plate, a rectangular supporting block is arranged in each rectangular groove, one end of each rectangular supporting block is arranged in each rectangular groove, the other end of each rectangular supporting block extends into each rectangular hole, an L-shaped step is formed on the other end of each rectangular supporting block, and each rectangular supporting block is lifted in the rectangular notch of the lower supporting plate through the corresponding L-shaped step.
6. The process for manufacturing the suspension clamp according to claim 4, wherein two positioning through holes for inserting the ejector rods are formed in the upper surface of the upper supporting plate, circular clamping grooves are formed in the inner sides of lower port portions of the positioning through holes, upsetting round caps are formed in the bottoms of the ejector rods, the upper ends of the ejector rods penetrate through the positioning through holes, the round caps of the ejector rods are clamped in the circular clamping grooves, and the round caps are packaged in the circular clamping grooves after the upper supporting plate is fixedly connected with the lower supporting plate.
7. The process for manufacturing the suspension clamp according to claim 4, wherein four grooves are formed in four corners of the upper die, four protrusions are formed in four corners of the lower die, and the four protrusions are mutually buckled with the four grooves.
8. The processing technology of the suspension clamp according to claim 4, wherein the arc-shaped protrusions of the lower die are respectively provided with a stand column at the positions close to two sides, two through holes are correspondingly designed in the arc-shaped grooves of the upper die, and the stand columns are slidably inserted into the through holes at the corresponding sides to be slidably guided and matched; the bottom of the upright post is provided with an annular boss in a peripheral manner, the arc-shaped boss of the lower die is provided with a positioning through hole for the installation of the upright post, the lower port part of the positioning through hole is provided with an annular groove, the upper end of the upright post passes through the positioning through hole, and the annular boss at the lower end of the upright post is clamped in the annular groove.
9. The processing technology of the suspension clamp according to claim 4, wherein when the forging die is demolded, the upper die is reset upwards, the demolding part starts to act, the lower ejection cylinder or the oil cylinder pushes the supporting plate to drive the supporting plate to move upwards with the ejector rod through the telescopic end of the ejection cylinder or the oil cylinder, the supporting force of four springs is overcome, meanwhile, the guide rod of the limit guide bolt is guided by the guide groove, and when the forging die is pushed upwards, the annular step of one circle of the limit guide bolt is propped against the lower die to prevent excessive ejection; the top of the ejector rod is propped against two points at the lower end of the workpiece, the workpiece is ejected out of a groove of a convex profile of the simulated suspension clamp, and the forged workpiece is taken out; the ejection cylinder or the oil cylinder is reset, and the supporting plate is simultaneously reset in a descending way under the reaction force of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310393317.5A CN116372074A (en) | 2023-04-13 | 2023-04-13 | Processing technology of suspension clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310393317.5A CN116372074A (en) | 2023-04-13 | 2023-04-13 | Processing technology of suspension clamp |
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|---|---|
| CN116372074A true CN116372074A (en) | 2023-07-04 |
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| CN202310393317.5A Pending CN116372074A (en) | 2023-04-13 | 2023-04-13 | Processing technology of suspension clamp |
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| CN (1) | CN116372074A (en) |
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