CN115179466B - Die cam driving mechanism and semiconductor die - Google Patents
Die cam driving mechanism and semiconductor die Download PDFInfo
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- CN115179466B CN115179466B CN202210811705.6A CN202210811705A CN115179466B CN 115179466 B CN115179466 B CN 115179466B CN 202210811705 A CN202210811705 A CN 202210811705A CN 115179466 B CN115179466 B CN 115179466B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 239000004065 semiconductor Substances 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 84
- 238000009434 installation Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims 5
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- 230000033001 locomotion Effects 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
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- 239000000243 solution Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
- B29C33/22—Opening, closing or clamping by rectilinear movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a die cam driving mechanism and a semiconductor die, and relates to the technical field of semiconductor manufacturing equipment. Compared with the prior art, the die cam driving mechanism provided by the invention can realize continuous motion, can realize any motion law and track, is simple in speed regulation, solves a series of problems caused by motor screw rod transmission, and is simple and compact in structure, convenient to design and reliable in work.
Description
Technical Field
The invention relates to the technical field of semiconductor manufacturing equipment, in particular to a die cam driving mechanism and a semiconductor die.
Background
Along with the development of science and technology and the development of society, the modern automatic machine has higher and higher requirements on speed and precision, so that more and more mechanical systems are constantly designed optimally, so that the design structure is simpler and simpler, the design mode is more convenient, and the production becomes faster, safer and more efficient.
In the semiconductor field, the conventional semiconductor die is usually used for the die in the processes of injection molding, plastic packaging and the like, the normal semiconductor die is driven in a way that the positive and negative rotation of a motor is used for controlling the opening and closing of the die through a screw rod, the mode is realized through frequent positive and negative rotation of the motor, the damage to the motor and a synchronous belt is easily caused, and the semiconductor die has the main defects of difficult speed regulation, difficulty in realizing any motion rule, complex design and low efficiency.
Disclosure of Invention
The invention aims to provide a die cam driving mechanism and a semiconductor die, which can realize continuous motion, realize any motion law and track, realize simple speed regulation, solve a series of problems caused by motor screw rod transmission, and have the advantages of simple and compact structure, convenient design and reliable operation.
Embodiments of the invention may be implemented as follows:
In a first aspect, the present invention provides a mold cam drive mechanism comprising:
A drive rack;
a cam mounting shaft rotatably provided on the drive housing;
a first cam mounted on the cam mounting shaft;
the first transmission assembly is in transmission connection with the first cam and is used for connecting an upper die;
A second cam mounted on the cam mounting shaft;
The second transmission assembly is in transmission connection with the second cam and is used for connecting a lower die;
The cam installation shaft is used for driving the first cam and the second cam to synchronously rotate, and the first transmission assembly and the second transmission assembly drive the upper die and the lower die to be close to each other.
In an alternative embodiment, the first transmission assembly includes a first roller, a cam follower plate, a transmission plate frame and a connecting plate, wherein the first roller is rotatably arranged on the cam follower plate and rolls against a rolling surface of the first cam, the cam follower plate is connected with the transmission plate frame, the transmission plate frame is movably arranged on the driving frame, and the connecting plate is connected with the transmission plate frame and is used for connecting the upper die.
In an alternative embodiment, the drive plate frame includes upper side plate, lower side plate and guiding axle, be provided with the guiding cylinder in the drive frame, the guiding axle slides and sets up in the guiding cylinder, the upper side plate sets up the upper end of guiding cylinder, the connecting plate with the upper side plate is connected, the lower side plate sets up the lower extreme of guiding cylinder, the cam follower plate with the lower side plate is connected.
In an alternative embodiment, the lower side plate is disposed at the lower side of the driving frame, and a first reset elastic member is further disposed between the lower side plate and the driving frame, and the first reset elastic member is used for providing elastic force close to the driving frame for the lower side plate.
In an alternative embodiment, the second transmission assembly includes a second roller, a sliding plate, a pressing block and a connecting block, where the second roller is rotatably disposed at the bottom of the sliding plate and rolls against the rolling surface of the second cam, the sliding plate is movably disposed on the driving frame, the pressing block is disposed at the top of the sliding plate, and the connecting block is connected with the pressing block and is used for connecting the lower die.
In an alternative embodiment, the driving frame is provided with a vertical guide rail, and the sliding plate is slidably arranged on the vertical guide rail and slides along the vertical guide rail under the driving of the second cam.
In an alternative embodiment, the top of the driving rack is further provided with a mounting cylinder, a connecting piece is slidably arranged in the mounting cylinder, the connecting piece is simultaneously connected with the compression block and the sliding plate, the sliding plate is located on the lower side of the mounting cylinder, a second reset elastic piece is further arranged between the mounting cylinder and the sliding plate, and the second reset elastic piece is used for providing elastic force for the sliding plate away from the mounting cylinder.
In an alternative embodiment, the base radius of the first cam is 44.5mm, the lift angle of the first cam is 21.48 °, the distal angle of repose of the first cam is 178 °, the return angle of the first cam is 30 °, the proximal angle of repose of the first cam is 130.52 °, and the travel of the first cam is 5.5mm.
In an alternative embodiment, the base radius of the second cam is 35.3mm, the lift angle of the second cam is 48 °, the distal angle of repose of the second cam is 127 °, the return angle of the first cam is 55 °, the proximal angle of repose of the first cam is 130 °, and the travel of the first cam is 14.7mm.
In a second aspect, the present invention provides a semiconductor die, including an upper die, a lower die, and a die cam driving mechanism according to any one of the foregoing embodiments, where the first transmission assembly is connected to the upper die, the second transmission assembly is connected to the lower die, and the cam mounting shaft is configured to drive the first cam and the second cam to rotate synchronously, and drive the upper die and the lower die to approach each other through the first transmission assembly and the second transmission assembly.
The beneficial effects of the embodiment of the invention include, for example:
The embodiment of the invention provides a die cam driving mechanism and a semiconductor die, wherein a first cam and a second cam are simultaneously arranged on the same cam installation shaft, the first cam is connected with an upper die through a first transmission assembly, the second cam is connected with a lower die through a second transmission assembly, and the cam installation shaft is used for driving the first cam and the second cam to synchronously rotate and driving the upper die and the lower die to be close to each other through the first transmission assembly and the second transmission assembly. The first cam and the second cam are installed by using the same cam installation shaft, so that the structure is simplified, and the arrangement of the first cam and the second cam can convert continuous rotation of the cams into continuous movement of the driven piece, thereby realizing die assembly of the upper die and the lower die. Compared with the prior art, the die cam driving mechanism provided by the invention can realize continuous motion, can realize any motion law and track, is simple in speed regulation, solves a series of problems caused by motor screw rod transmission, and is simple and compact in structure, convenient to design and reliable in work.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a mold driving mechanism according to a first embodiment of the present invention at a first viewing angle;
FIG. 2 is a schematic view of a mold driving mechanism according to a first embodiment of the present invention at a second view angle;
FIG. 3 is a schematic view of the first cam of FIG. 1;
FIG. 4 is a graph timing diagram of a first cam;
FIG. 5 is a schematic view of the second cam of FIG. 1;
FIG. 6 is a graph timing diagram of a second cam.
Icon: 100-a die cam drive mechanism; 110-a drive bay; 120-cam mounting shaft; 130-a first cam; 140-a first transmission assembly; 141-a first roller; 142-cam follower plate; 143-driving plate frame; 144-connecting plates; 145-upper side plate; 146-lower side plate; 147-guiding shaft; 148-guiding cylinder; 149-a first return spring; 150-a second cam; 160-a second transmission assembly; 161-a second roller; 162-skateboard; 163-compacting blocks; 164-connecting blocks; 165-vertical guide rails; 166-mounting a cartridge; 167-connection piece; 168-a second return spring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
As disclosed in the background art, the existing semiconductor die usually adopts a mode of a motor and a screw rod to realize the die closing action of the upper die and the lower die, the mode has a complex structure, the motor direction needs to be frequently converted, the motor and a synchronous belt are easy to damage, and the main defects are difficult speed regulation, difficulty in realizing any motion rule, complex design and low efficiency.
However, for cam driving mechanisms, a single follower is usually driven to move by a single cam, no scheme for arranging two cams on the same cam shaft to realize driving in opposite directions exists, and applying a conventional cam driving mechanism to a semiconductor die necessarily results in arranging a plurality of cam shafts and adopting a plurality of groups of cam driving mechanisms, so that the structure is complex and the efficiency is low.
In order to solve the above-mentioned problems, the present invention provides a novel mold cam driving mechanism and a semiconductor mold, and it should be noted that the features of the embodiments of the present invention may be combined with each other without collision.
First embodiment
Referring to fig. 1 to 6, the present embodiment provides a cam driving mechanism 100 for a mold, which can realize continuous motion, can realize arbitrary motion rules and trajectories, has simple speed regulation, solves a series of problems caused by motor screw rod transmission, and has simple and compact structure, convenient design and reliable operation.
The mold cam driving mechanism 100 provided in this embodiment includes a driving frame 110, a cam mounting shaft 120, a first cam 130, a first transmission assembly 140, a second cam 150 and a second transmission assembly 160, where the cam mounting shaft 120 is rotatably disposed on the driving frame 110, the first cam 130 and the second cam 150 are both mounted on the cam mounting shaft 120, the first transmission assembly 140 is in transmission connection with the first cam 130 and is used for connecting an upper mold, the second transmission assembly 160 is in transmission connection with the second cam 150 and is used for connecting a lower mold, and the cam mounting shaft 120 is used for driving the first cam 130 and the second cam 150 to rotate synchronously and driving the upper mold and the lower mold to draw close to each other through the first transmission assembly 140 and the second transmission assembly 160.
In this embodiment, the first cam 130 and the second cam 150 are simultaneously installed on the same cam installation shaft 120, the first cam 130 is connected to the upper die through the first transmission assembly 140, the second cam 150 is connected to the lower die through the second transmission assembly 160, wherein the cam installation shaft 120 is used for driving the first cam 130 and the second cam 150 to rotate synchronously, and the first transmission assembly 140 and the second transmission assembly 160 drive the upper die and the lower die to close to each other. The first cam 130 and the second cam 150 are mounted using the same cam mounting shaft 120, simplifying the structure, and the arrangement of the first cam 130 and the second cam 150 can convert the continuous rotation of the cams into the continuous movement of the followers, thereby achieving the mold closing of the upper and lower molds.
In this embodiment, a driving motor is further disposed on the driving frame 110, and the driving motor is in transmission connection with the cam mounting shaft 120, so as to drive the cam mounting shaft 120 to rotate. Since the first cam 130 and the second cam 150 are both continuously moving in the present embodiment, the driving motor does not need to perform forward and reverse rotation adjustment here.
It should be noted that, in this embodiment, the first cam 130 and the second cam 150 are coaxially installed on the cam installation shaft 120, the cam installation shaft 120 is driven by a driving motor to rotate, and the first cam 130 and the second cam 150 are synchronously driven to rotate, where by designing the profiles of the first cam 130 and the second cam 150, the far repose angle time sequences of the first cam 130 and the second cam 150 can be overlapped, so that the first cam 130 drives the upper die to move downwards through the first transmission assembly 140, and the second cam 150 drives the lower die to move upwards through the second transmission assembly 160, thereby realizing the die assembly action, and driving only through the same driving motor, and further enabling the whole structure to be more compact.
The first transmission assembly 140 includes a first roller 141, a cam follower plate 142, a transmission plate frame 143, and a connection plate 144, where the first roller 141 is rotatably disposed on the cam follower plate 142 and rolls against the rolling surface of the first cam 130, the cam follower plate is connected with the transmission plate frame 143, the transmission plate frame 143 is movably disposed on the driving frame 110, and the connection plate 144 is connected with the transmission plate frame 143 and is used for connecting the upper die. Specifically, the first roller 141 is disposed at the bottom of the cam follower plate 142 and abuts against the rolling surface of the first cam 130, and moves downward under the abutment of the first cam 130, thereby driving the cam follower plate 142 to move downward. In this embodiment, the first roller 141 abuts against the lower side of the first cam 130, i.e. is located directly under the first cam 130, and by providing the cam follower plate 142, the movement of the first roller 141 can be smoothly transferred to the upper die, and the structural direction conversion is realized, so that the first roller 141 is supported against the lower side surface of the first cam 130.
In the present embodiment, the drive plate bracket 143 includes an upper side plate 145, a lower side plate 146 and a guide shaft 147, a guide cylinder 148 is provided on the drive frame 110, the guide shaft 147 is slidably provided in the guide cylinder 148, the upper side plate 145 is provided at an upper end of the guide cylinder 148, the connecting plate 144 is connected with the upper side plate 145, the lower side plate 146 is provided at a lower end of the guide cylinder 148, and the cam follower plate 142 is connected with the lower side plate 146. Specifically, the upper side plate 145 and the lower side plate 146 are respectively disposed on the upper side and the lower side of the driving frame 110, the upper side plate 145 and the lower side plate 146 are integrally connected through the guide shaft 147, and can move downward under the driving of the cam follower plate 142, and meanwhile, by disposing the guide cylinder 148, the guide cylinder 148 is disposed along the vertical direction, so that the movement direction of the upper side plate 145 and the lower side plate 146 can be defined, and the occurrence of the movement offset phenomenon is avoided.
In this embodiment, the lower side plate 146 is disposed at the lower side of the driving frame 110, and a first elastic return member 149 is further disposed between the lower side plate 146 and the driving frame 110, where the first elastic return member 149 is used to provide elastic force to the lower side plate 146 near the driving frame 110. Specifically, the first return elastic member 149 is an extension spring, the driving frame 110 is a fixed structure, and the compression spring acts on the lower side plate 146, so that the lower side plate 146 is pulled to move upwards when the first cam 130 returns, and the cam follower plate 142 and the connecting plate 144 are driven to move upwards, so that the upper die is ensured to be opened, and meanwhile, the first roller 141 is ensured to be always propped against the surface of the first cam 130.
The second transmission assembly 160 includes a second roller 161, a sliding plate 162, a pressing block 163, and a connection block 164, the second roller 161 is rotatably disposed at the bottom of the sliding plate 162 and rolls against the rolling surface of the second cam 150, the sliding plate 162 is movably disposed on the driving frame 110, the pressing block 163 is disposed at the top of the sliding plate 162, and the connection block 164 is connected with the pressing block 163 and is used for connecting the lower mold. Specifically, the second roller 161 rolls and abuts against the upper side surface of the second cam 150, that is, is located right above the second cam 150, and under the abutting action of the second cam 150, the second cam 150 can move upwards, and drives the slide plate 162, the pressing block 163 and the connecting block 164 to move upwards, so as to drive the lower die to move upwards, and the upper die is matched to realize the die clamping action. By providing the slide plate 162, a good power transmission effect can be achieved, and the cam motion of the lower part is transmitted to the connecting block 164 of the upper part, so that the lower die is conveniently driven to move.
In this embodiment, the driving rack 110 is provided with a vertical rail 165, and the slide plate 162 is slidably disposed on the vertical rail 165 and slides along the vertical rail 165 under the driving of the second cam 150. Specifically, the vertical guide rail 165 is fixedly arranged on the driving frame 110, the sliding plate 162 is provided with a sliding block, the sliding block is embedded in the vertical guide rail 165 and can freely slide in the vertical guide rail 165, and the movement direction of the sliding plate 162 can be limited by arranging the vertical guide rail 165, so that the sliding plate 162 is ensured to move in the up-and-down direction.
In this embodiment, the top of the driving frame 110 is further provided with a mounting cylinder 166, a connecting member 167 is slidably provided in the mounting cylinder 166, the connecting member 167 is simultaneously connected with the pressing block 163 and the sliding plate 162, the sliding plate 162 is located at the lower side of the mounting cylinder 166, and a second restoring elastic member 168 is further provided between the mounting cylinder 166 and the sliding plate 162, and the second restoring elastic member 168 is used for providing elastic force to the sliding plate 162 away from the mounting cylinder 166. Specifically, by providing the mounting cylinder 166, the movement direction can be further defined, and at the same time, the second return elastic member 168 may be a compression spring, and the compression spring drives the sliding plate 162 to move downward during the return process of the second cam 150, so that the lower die is ensured to be removed, and the second roller 161 is ensured to be always abutted against the surface of the second cam 150.
In order to realize synchronous rotation of the first cam 130 and the second cam 150 and mold closing and opening of the upper mold and the lower mold, the profiles of the first cam 130 and the second cam 150 are designed in the present embodiment, and the profile design of the first cam 130 and the second cam 150 will be described in detail below.
In the present embodiment, the base radius of the first cam 130 is 44.5mm, the lift angle of the first cam 130 is 21.48 °, the far angle of repose of the first cam 130 is 178 °, the return angle of the first cam 130 is 30 °, the near angle of repose of the first cam 130 is 130.52 °, and the stroke of the first cam 130 is 5.5mm. Wherein, as shown in fig. 3, the diameter of the first roller 141 is 35mm and is located under the first cam 130, so as to be at the position of 0 ° in the drawing, at this time, the first roller 141 is located at the start point of the stroke, the first cam 130 rotates clockwise at the position of the drawing, the displacement-angle view thereof is as shown in fig. 4, when the first cam 130 rotates by 21.48 °, the first roller 141 moves down to the end point of the stroke, the upper die moves down, after which the first cam 130 continues to rotate 178 °, during which the first roller 141 is kept at the end point, the upper die is kept at the die clamping position, then the first cam 130 continues to rotate by 30 °, at this time, the first roller 141 moves to the start point of the stroke, during which the upper die moves up under the reset action of the first reset elastic member 149, returns to the initial position, then the first cam 130 continues to rotate by 130.52 ° and returns to the initial position, and the next round of driving is performed.
In the present embodiment, the base radius of the second cam 150 is 35.3mm, the lift angle of the second cam 150 is 48 °, the far angle of repose of the second cam 150 is 127 °, the return angle of the first cam 130 is 55 °, the near angle of repose of the first cam 130 is 130 °, and the stroke of the first cam 130 is 14.7mm. Wherein, as shown in fig. 5, the diameter of the second roller 161 is 35mm, and is located right above the second cam 150, so that the position is 0 ° at the illustrated position, at this time, the second roller 161 is located at the forming starting point, the second cam 150 rotates clockwise at the illustrated position, the displacement-angle view thereof is as shown in fig. 6, when the second cam 150 rotates 48 °, the second roller 161 moves up to the stroke end, the lower die moves up in the process, after which the second cam 150 continues to rotate 127 °, during which the second roller 161 is always kept at the end position, the lower die also remains at the clamping position, then the second cam 150 continues to rotate 55 °, at this time, the second roller 161 moves to the stroke starting point, during which the lower die moves down under the reset action of the second reset elastic member 168, returns to the initial position, then the second cam 150 continues to rotate 130 ° and returns to the initial position, and the next round of driving is performed.
In this embodiment, the first cam 130 and the second cam 150 rotate synchronously and are mounted on the same cam mounting shaft 120, so that the angular speeds of the first cam and the second cam are the same, which can ensure that the first roller 141 and the second roller 161 are at the end of the stroke at the same time and ensure the mold closing effect.
The action principle of the mold cam driving mechanism 100 provided in this embodiment is as follows: when the driving motor works, the cam mounting shaft 120 starts to rotate, the first cam 130 and the second cam 150 on the cam mounting shaft start to rotate, wherein the first cam 130 drives the first roller 141 to rotate, when the first cam 130 rotates to a certain angle, the first cam 130 can push the first roller 141 downwards, the corresponding first roller 141 moves downwards, the cam follower plate 142, the lower side plate 146, the guide shaft 147, the upper side plate 145 and the connecting plate 144 are driven to move downwards, the lower movement of the upper die is realized, the die assembly is completed, and when the first cam 130 rotates to another angle, the first cam 130 moves upwards relative to the previous state, and the whole mechanism moves upwards, so that the upper die is reset. The operation principle of the second cam 150 is similar to that of the first cam 130, and will not be described herein.
In summary, the present embodiment provides a cam driving mechanism 100 for a mold, in which a first cam 130 and a second cam 150 are simultaneously mounted on the same cam mounting shaft 120, the first cam 130 is connected to an upper mold through a first transmission assembly 140, the second cam 150 is connected to a lower mold through a second transmission assembly 160, wherein the cam mounting shaft 120 is used for driving the first cam 130 and the second cam 150 to rotate synchronously, and the first transmission assembly 140 and the second transmission assembly 160 drive the upper mold and the lower mold to draw close to each other. The first cam 130 and the second cam 150 are mounted using the same cam mounting shaft 120, simplifying the structure, and the arrangement of the first cam 130 and the second cam 150 can convert the continuous rotation of the cams into the continuous movement of the followers, thereby achieving the mold closing of the upper and lower molds. Compared with the conventional mold clamping technology, the mold cam driving mechanism 100 provided by the embodiment can realize continuous motion, can realize any motion rule and track, has simple speed regulation, solves a series of problems caused by motor screw rod transmission, and has the advantages of simple and compact structure, convenient design and reliable operation.
Second embodiment
The present embodiment provides a semiconductor die including a die cam driving mechanism 100, wherein the basic structure and principle of the die cam driving mechanism 100 and the technical effects thereof are the same as those of the first embodiment, and for brevity, reference is made to the corresponding matters in the first embodiment where the parts of the present embodiment are not mentioned.
In this embodiment, the semiconductor die includes an upper die, a lower die and a die cam driving mechanism 100, the die cam driving mechanism 100 includes a driving frame 110, a cam mounting shaft 120, a first cam 130, a first transmission assembly 140, a second cam 150 and a second transmission assembly 160, the cam mounting shaft 120 is rotatably disposed on the driving frame 110, the first cam 130 and the second cam 150 are both mounted on the cam mounting shaft 120, the first transmission assembly 140 is in transmission connection with the first cam 130 and is in transmission connection with the upper die, the second transmission assembly 160 is in transmission connection with the second cam 150 and is in transmission connection with the lower die, wherein the cam mounting shaft 120 is used for driving the first cam 130 and the second cam 150 to rotate synchronously and driving the upper die and the lower die to approach each other through the first transmission assembly 140 and the second transmission assembly 160. Specifically, in this embodiment, the upper die is connected to the connection plate 144, and the lower die is connected to the connection block 164.
In the semiconductor die provided in this embodiment, the first cam 130 and the second cam 150 are simultaneously installed on the same cam installation shaft 120, the first cam 130 is connected with the upper die through the first transmission assembly 140, the second cam 150 is connected with the lower die through the second transmission assembly 160, wherein the cam installation shaft 120 is used for driving the first cam 130 and the second cam 150 to rotate synchronously, and the upper die and the lower die are driven to draw close to each other through the first transmission assembly 140 and the second transmission assembly 160. The first cam 130 and the second cam 150 are mounted using the same cam mounting shaft 120, simplifying the structure, and the arrangement of the first cam 130 and the second cam 150 can convert the continuous rotation of the cams into the continuous movement of the followers, thereby achieving the mold closing of the upper and lower molds. The mold cam driving mechanism 100 provided by the embodiment can realize continuous motion, can realize any motion law and track, has simple speed regulation, solves a series of problems caused by motor screw rod transmission, and has simple and compact structure, convenient design and reliable operation.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A mold cam drive mechanism, comprising:
A drive rack;
a cam mounting shaft rotatably provided on the drive housing;
a first cam mounted on the cam mounting shaft;
the first transmission assembly is in transmission connection with the first cam and is used for connecting an upper die;
A second cam mounted on the cam mounting shaft;
The second transmission assembly is in transmission connection with the second cam and is used for connecting a lower die;
The cam installation shaft is used for driving the first cam and the second cam to synchronously rotate, and driving the upper die and the lower die to be close to each other through the first transmission assembly and the second transmission assembly;
The second transmission assembly comprises a second roller, a sliding plate, a compression block and a connecting block, wherein the second roller is rotatably arranged at the bottom of the sliding plate and rolls against the rolling surface of the second cam, the sliding plate is movably arranged on the driving rack, the compression block is arranged at the top of the sliding plate, and the connecting block is connected with the compression block and is used for connecting the lower die;
The top of drive frame still is provided with the installation section of thick bamboo, the slip is provided with the connecting piece in the installation section of thick bamboo, the connecting piece simultaneously with the compact heap with the slide is connected, the slide is located the downside of installation section of thick bamboo, the installation section of thick bamboo with still be provided with the second elastic component that resets between the slide, the second elastic component that resets is used for to the slide provides and keeps away from the elasticity of installation section of thick bamboo.
2. The mold cam driving mechanism according to claim 1, wherein the first transmission assembly comprises a first roller, a cam follower plate, a transmission plate frame and a connection plate, the first roller is rotatably arranged on the cam follower plate and rolls against a rolling surface of the first cam, the cam follower plate is connected with the transmission plate frame, the transmission plate frame is movably arranged on the driving frame, and the connection plate is connected with the transmission plate frame and is used for connecting the upper mold.
3. The mold cam driving mechanism according to claim 2, wherein the driving plate frame comprises an upper side plate, a lower side plate and a guide shaft, a guide cylinder is arranged on the driving frame, the guide shaft is slidably arranged in the guide cylinder, the upper side plate is arranged at the upper end of the guide cylinder, the connecting plate is connected with the upper side plate, the lower side plate is arranged at the lower end of the guide cylinder, and the cam follower plate is connected with the lower side plate.
4. A die cam drive mechanism according to claim 3, wherein the lower side plate is provided on the lower side of the drive frame, and a first return elastic member is further provided between the lower side plate and the drive frame, the first return elastic member being for providing elastic force to the lower side plate near the drive frame.
5. The mold cam driving mechanism according to claim 1, wherein the driving frame is provided with a vertical guide rail, and the slide plate is slidably disposed on the vertical guide rail and slides along the vertical guide rail under the driving of the second cam.
6. The mold cam driving mechanism according to claim 1, wherein a base radius of the first cam is 44.5mm, a lift angle of the first cam is 21.48 °, a distal angle of repose of the first cam is 178 °, a return angle of the first cam is 30 °, a proximal angle of repose of the first cam is 130.52 °, and a stroke of the first cam is 5.5mm.
7. The mold cam driving mechanism according to claim 1, wherein a base radius of the second cam is 35.3mm, a lift angle of the second cam is 48 °, a far angle of repose of the second cam is 127 °, a return angle of the first cam is 55 °, a near angle of repose of the first cam is 130 °, and a stroke of the first cam is 14.7mm.
8. A semiconductor die, comprising an upper die, a lower die and a die cam driving mechanism according to any one of claims 1 to 7, wherein the first transmission assembly is connected with the upper die, the second transmission assembly is connected with the lower die, and the cam mounting shaft is used for driving the first cam and the second cam to synchronously rotate and driving the upper die and the lower die to be close to each other through the first transmission assembly and the second transmission assembly.
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| CN202210811705.6A CN115179466B (en) | 2022-07-11 | 2022-07-11 | Die cam driving mechanism and semiconductor die |
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| CN207536159U (en) * | 2017-10-23 | 2018-06-26 | 杭州永创智能设备股份有限公司 | A kind of lifting closing device of mold |
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| KR100391430B1 (en) * | 2000-12-28 | 2003-07-12 | 현대자동차주식회사 | Cam type press system |
| KR20040101821A (en) * | 2003-05-27 | 2004-12-03 | 현대자동차주식회사 | A cam type press |
| FR2879179B1 (en) * | 2004-12-15 | 2007-03-16 | Sidel Sas | DEVICE FOR TRANSFERRING ARTICLES BY MEANS OF A GROUP OF VARIABLE SPEED MODULES |
| CN103990719B (en) * | 2014-05-30 | 2016-11-16 | 长城汽车股份有限公司 | The wedge structure of mould |
| CN204674013U (en) * | 2015-06-04 | 2015-09-30 | 瑞安市永旭机械有限公司 | Plastic molding press |
| CN204687337U (en) * | 2015-06-04 | 2015-10-07 | 瑞安市永旭机械有限公司 | The shaping mechanism of plastic molding press |
| CN105599278B (en) * | 2016-03-07 | 2018-01-16 | 江苏新美星包装机械股份有限公司 | Locked mode component in rotary bottle blow-moulding machine on mould bases |
| CN111347546A (en) * | 2020-04-26 | 2020-06-30 | 惠州市海恒建材机械有限公司 | Pipe pile mould bolt turning device |
| CN213104124U (en) * | 2020-07-21 | 2021-05-04 | 株洲爱德冲压产品制造有限公司 | Stamping die is used in automobile parts processing |
| CN114713722A (en) * | 2022-04-18 | 2022-07-08 | 柳州福臻车体实业有限公司 | Elastic driving side-turning rotating cam mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207536159U (en) * | 2017-10-23 | 2018-06-26 | 杭州永创智能设备股份有限公司 | A kind of lifting closing device of mold |
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