Noise reduction type stamping die

Abstract

The noise reduction type stamping die comprises a movable die body, a pre-punching head is fixedly installed in the middle of the bottom of the movable die body, connecting bases are fixedly connected to the two sides of the pre-punching head in a threaded mode, meanwhile, driving bases are fixedly connected to the bottoms of the connecting bases in a threaded mode, and main stamping bases are movably installed at the bottoms of the driving bases; and the right side surface of the main stamping seat is screwed and fixed to a limiting column, the limiting column is inserted into a limiting hole formed in a mounting plate, meanwhile, the bottom of the mounting plate is welded to the surface of a supporting seat, and the bottom of the supporting seat is screwed and fixed to the surface of the static mold. According to the noise reduction type stamping die, when the movable die moves downwards, the inserting frame at the bottom of the movable die moves downwards and is inserted into the inserting space, so that the stamping structure between the movable die and the static die is covered with the inserting frame and the inner side frame, and in the stamping process, noise generated by the stamping structure can be blocked by the inserting frame and the inner side frame.

Description

Technical Field

[0001] The invention relates to the field of stamping dies, in particular to a noise reduction stamping die. Background Art

[0002] Stamping dies are special tools used for metal processing, which are widely used in the manufacturing industries such as automobile manufacturing, home appliance manufacturing, and electronic equipment manufacturing. Stamping processing is to place metal sheets in the die and then apply pressure to make the sheets plastically deform or separate, so as to obtain the required shape and size. Among them, the punching accuracy of the punching die will have a significant impact on the formed workpiece;

[0003] In the related technical means, the workpiece to be punched is manually pushed against the limit column or limit block of the lower template to limit the movement of the workpiece to be punched, and then the punch provided on the upper clamping plate cooperates with the die provided on the lower template to punch out the required hole in the workpiece, thereby achieving the effect of increasing the punching accuracy of the punching die;

[0004] With respect to the above technical solution, the workpiece to be punched is manually pushed against the limit column or limit block of the lower template to limit the movement of the workpiece to be punched. Although the punching accuracy of the punching die is increased to a certain extent, there is a problem that the manual push is prone to poor tightness, which leads to a decrease in punching accuracy.

[0005] In view of the above technical problems, the existing patent announcement number: CN220216399U discloses a side limit stamping die; by setting an automatic clamping against the workpiece; a side top block is set on the upper clamping plate, and a side top piece is set on the lower template, and the side top piece is set with a force-bearing end and a side top end. When the upper die seat drives the upper clamping plate to move downward, the side top block set on the upper clamping plate pushes the force-bearing end of the side top piece to slide, so that the side top end set at one end of the side top piece is pushed The workpiece is pressed against the side block, thereby improving the problem that poor tightening is easily caused by manual pushing, which leads to a decrease in punching accuracy;

[0006] Although the above patent can improve the problem of poor tightness caused by manual pushing, which in turn leads to reduced punching accuracy; however, when the stamping die is in use, the stamping plate will vibrate when it is subjected to force and produce serious noise, which will reduce the work mood of the workshop staff. Summary of the invention

[0007] The object of the present invention is to provide a noise reduction stamping die to solve the defects mentioned in the above background technology.

[0008] To achieve the above-mentioned purpose, a noise reduction stamping die is provided, comprising a movable die, a pre-punch is fixedly installed in the middle of the bottom of the movable die, and both sides of the pre-punch are screwed and fixed to a connecting seat, and a driving seat is screwed and fixed to the bottom of the connecting seat, and a main stamping seat is movably installed at the bottom of the driving seat, and the right side surface of the main stamping seat is screwed and fixed to a limiting column, and the limiting column is inserted into a limiting hole opened in the mounting plate, and the bottom of the mounting plate is welded to the surface of the support seat, and the bottom of the support seat is screwed and fixed to the surface of the static die;

[0009] A noise reduction enclosure is installed between the dynamic mold and the static mold. The noise reduction enclosure includes an insert frame, and the insert frame is fixedly connected to the bottom of the dynamic mold. At the same time, an outer frame is installed at the bottom of the insert frame, and an inner frame is arranged inside the outer frame. The bottoms of the inner frame and the outer frame are fixedly arranged on the surface of the static mold.

[0010] Preferably, the driving seats are arranged in two groups symmetrically installed on both sides of the pre-punch, and the driving seats are made of metal material and have an isosceles trapezoidal cross-section. At the same time, the two groups of driving seats are respectively arranged above the two groups of main punching seats.

[0011] Preferably, a downward pressing slope is opened at the bottom of the driving seat, and a force-bearing slope is opened on the surface of the main stamping seat, and the downward pressing slope is arranged in parallel with the force-bearing slope. At the same time, two groups of U-shaped openings are opened on the two groups of driving seats, and the U-shaped openings are arranged opposite to the limiting columns, and the size of the U-shaped openings is larger than the size of the limiting columns.

[0012] Preferably, a fixed pressing ring is welded to the end of the limiting column, and a mounting spring is sleeved on the limiting column, and the spring is arranged between the pressing ring and the mounting plate.

[0013] Preferably, both sides of the main punch seat are screwed to fix the guide seat, and a guide hole matching the size of the guide column is provided on the guide seat, while the guide column is inserted into the guide hole, and the end of the guide column is fixedly connected to the mounting plate.

[0014] Preferably, placement grooves are fixedly arranged on the surfaces of the two groups of main stamping seats, and a workpiece positioning area is formed between the two groups of placement grooves. At the same time, the main stamping parts are positioned and placed between the two groups of placement grooves, and main stamping grooves are opened on the inner walls of the two groups of main stamping seats.

[0015] Preferably, a card-mounting seat is fixedly mounted on the middle surface of the static mold, and a card-mounting space is opened inside the card-mounting seat. Meanwhile, a secondary stamping part is installed inside the card-mounting space, and both the card-mounting space and the secondary stamping part are "T"-shaped structures.

[0016] Preferably, left punching grooves are opened on both sides of the clamping seat, and right punching grooves are opened on the right side of the left punching grooves. Meanwhile, the right punching grooves are arranged on the left side surface of the secondary punching seat, and the top of the secondary punching seat is fixedly connected to the main punching seat, and the secondary punching seat is arranged in an "L" shape.

[0017] Preferably, an insertion space is formed between the outer frame and the inner frame, and the insertion space is adapted to the size of the insertion frame, and the insertion frame is inserted into the insertion space when the movable mold is downwardly clamped.

[0018] Preferably, the front sides of the outer frame and the inner frame are both provided with operation openings, and the operation openings are arranged in a "U" shape.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The driving seat moves downward and drives the two sets of main stamping seats to move inward synchronously to perform secondary molding on the main stamping parts. At the same time, the two sets of main stamping parts move inward synchronously to perform winding molding on both ends of the secondary stamping parts. The mold moves once to perform synchronous stamping on the main stamping parts and the secondary stamping parts, reducing the production cycle and processing time of the workpiece.

[0021] 2. When the movable mold moves downward, the plug-in frame at its bottom moves downward and is plugged into the plug-in space, so that the stamping structure between the movable mold and the static mold is covered by the plug-in frame and the inner frame. During the stamping process, the noise generated by the stamping structure can be blocked by the plug-in frame and the inner frame to achieve the function of noise reduction. When the mold is opened, the formed main stamping parts and secondary stamping parts can be taken out through the operating port. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a front view schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the main stamping part and the secondary stamping part after the structure of the present invention is formed;

[0025] Figure 3 This is a schematic diagram of the noise reduction enclosure of the structure of the present invention;

[0026] Figure 4 This is a bottom view of the noise reduction enclosure of the structure of the present invention;

[0027] Figure 5 The structure of the present invention Figure 1 A schematic diagram of the front structure of

[0028] Figure 6 The structure of the present invention Figure 5 Schematic diagram of mold closing;

[0029] Figure 7 The structure of the present invention Figure 6 Schematic diagram of demoulding.

[0030] Description of the drawings: 1. Moving mold; 2. Connecting seat; 3. Driving seat; 31. U-shaped mouth; 4. Pre-punch; 5. Main stamping part; 6. Guide seat; 61. Guide column; 7. Main stamping seat; 71. Placement groove; 8. Mounting plate; 9. Spring; 10. Limit column; 11. Support seat; 12. Static mold; 13. Secondary stamping seat; 14. Right punching groove; 15. Card-mounting seat; 151. Card-mounting space; 16. Secondary stamping part; 17. Left punching groove; 18. Main punching groove; 19. Noise reduction enclosure; 191. Insertion frame; 192. Outer frame; 193. Inner frame; 194. Insertion space; 195. Operation port. DETAILED DESCRIPTION

[0031] The following is a detailed description of an expandable cancellous bone hollow screw with a pressurized structure provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0032] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0033] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0034] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0035] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0036] Specific implementation method 1: Please refer to Figure 1-7 The present invention provides a technical solution: a noise reduction stamping die, comprising a movable die 1, a pre-punch 4 is fixedly installed in the middle of the bottom of the movable die 1, and both sides of the pre-punch 4 are screwed and fixed to a connecting seat 2, and a driving seat 3 is screwed and fixed to the bottom of the connecting seat 2, and a main stamping seat 7 is movably installed at the bottom of the driving seat 3, and the right side surface of the main stamping seat 7 is screwed and fixed with a limiting column 10, and the limiting column 10 is inserted into the limiting hole opened in the mounting plate 8, and the bottom of the mounting plate 8 is welded to the surface of the support seat 11, and the bottom of the support seat 11 is screwed and fixed to the surface of the static die 12;

[0037] A noise reduction enclosure 19 is installed between the dynamic mold 1 and the static mold 12. The noise reduction enclosure 19 includes an insert frame 191, and the insert frame 191 is fixedly connected to the bottom of the dynamic mold 1. At the same time, an outer frame 192 is installed at the bottom of the insert frame 191, and an inner frame 193 is arranged inside the outer frame 192. The inner frame 193 and the bottom of the outer frame 192 are both fixedly arranged on the surface of the static mold 12.

[0038] Working principle: When the mold is closed, the movable mold 1 moves downward to punch the main stamping part 5 through the downward movement of the pre-punch 4. At the same time, the driving seat 3 moves downward and drives the two groups of main stamping seats 7 to move inward synchronously to perform secondary molding on the main stamping part 5. At the same time, the two groups of main stamping parts 5 move inward synchronously to perform winding molding on both ends of the secondary stamping part 16. The mold moves once to perform synchronous stamping on the main stamping part 5 and the secondary stamping part 16, thereby reducing the production cycle and processing time of the workpiece.

[0039] Specific implementation method 2: This implementation method is a further limitation of specific implementation method 1. The drive seat 3 is configured as two groups symmetrically installed on both sides of the pre-punch 4, and the drive seat 3 is made of metal material with an isosceles trapezoidal cross-section. At the same time, the two groups of drive seats 3 are respectively arranged above the two groups of main punching seats 7.

[0040] A downward pressing slope is provided at the bottom of the driving seat 3, and a force-bearing slope is provided on the surface of the main punching seat 7. The downward pressing slope is arranged in parallel with the force-bearing slope. At the same time, two groups of U-shaped openings 31 are provided on the two groups of driving seats 3. The U-shaped openings 31 are arranged opposite to the limiting column 10, and the size of the U-shaped openings 31 is larger than the size of the limiting column 10.

[0041] like Figure 1 and Figure 5-7 As shown: a force-bearing inclined surface is provided on the surface of the main punching seat 7, and the downward pressing inclined surface is arranged parallel to the force-bearing inclined surface; when the driving seat 3 moves downward, the force-bearing inclined surface contacts the force-bearing inclined surface, so that the surface of the main punching seat 7 is forced to move laterally, driving the two groups of main punching seats 7 to move synchronously, and performing secondary stamping and forming work on the main punching part 5 through the main punching groove 18.

[0042] Specific implementation method three: This implementation method is a further limitation of specific implementation method one. A fixed pressure ring is welded to the end of the limiting column 10 , and a mounting spring 9 is sleeved on the limiting column 10 . Meanwhile, the spring 9 is arranged between the pressure ring and the mounting plate 8 .

[0043] like Figure 1-5 As shown: a spring 9 is installed on the limit column 10; when the main punch seat 7 moves inward, the pressure ring thereon compresses the spring 9. When the force acting on the main punch seat 7 is withdrawn, the main punch seat 7 returns to its initial position due to the rebound of the spring 9.

[0044] The two sides of the main punch seat 7 are both screwed to fix the guide seat 6, and the guide seat 6 is provided with a guide hole matched with the size of the guide column 61. At the same time, the guide column 61 is inserted into the inside of the guide hole, and the end of the guide column 61 is fixedly connected to the mounting plate 8.

[0045] The guide hole on the guide seat 6 is internally inserted with a guide column 61, which can limit and guide the main punch seat 7 that moves laterally, thereby ensuring the stability of the main punch seat 7 during the lateral movement and preventing it from tilting.

[0046] Specific embodiment four: This embodiment is a further limitation of specific embodiment two, the surfaces of the two groups of main stamping seats 7 are fixedly provided with placement grooves 71, and a workpiece positioning area is formed between the two groups of placement grooves 71. At the same time, the main stamping parts 5 are positioned and placed between the two groups of placement grooves 71, and the inner walls of the two groups of main stamping seats 7 are provided with main stamping grooves 18.

[0047] like Figure 1 and Figure 5-7 As shown: the inner walls of the two groups of main punching seats 7 are both provided with main punching grooves 18; when the pre-punch head 4 moves downward, the main punching part 5 can be pre-punched, and as the movable mold 1 continues to move downward, the two groups of main punching seats 7 move inward synchronously, and the main punching part 5 can be subjected to secondary stamping and forming.

[0048] Specific embodiment five: This embodiment is a further limitation of specific embodiment one, a card-mounting seat 15 is fixedly installed on the middle surface of the static mold 12, and a card-mounting space 151 is opened inside the card-mounting seat 15, and a secondary stamping part 16 is installed inside the card-mounting space 151, and both the card-mounting space 151 and the secondary stamping part 16 are "T"-shaped structures.

[0049] like Figure 1 and Figure 5-7 As shown: the secondary stamping part 16 is installed inside the clamping space 151, and the two ends of the secondary stamping part 16 are set through the left punching groove 17. The two groups of secondary stamping seats 13 move inward synchronously. Under the action of the right punching groove 14 and the left punching groove 17, the two ends of the secondary stamping part 16 are stamped and formed, completing the stamping and forming work of the secondary stamping part 16.

[0050] A left punching groove 17 is opened on both sides of the clamping seat 15, and a right punching groove 14 is opened on the right side of the left punching groove 17. At the same time, the right punching groove 14 is arranged on the left side surface of the secondary punching seat 13, and the top of the secondary punching seat 13 is fixedly connected to the main punching seat 7. The secondary punching seat 13 is arranged in an "L" shape.

[0051] The arrangement of the main stamping seat 7 and the secondary stamping seat 13 can perform stamping and forming work on the main stamping part 5 and the secondary stamping part 16 at one time, which has the following advantages:

[0052] Two sets of metal parts can be formed simultaneously in one operation, reducing production cycle and processing time;

[0053] Saves investment in equipment, energy and human resources;

[0054] Realize large-scale production: meet the needs of mass production;

[0055] Optimize resource utilization: make full use of the design and function of the mold;

[0056] Reduce the space occupied by equipment: Compared with a single stamping die, it saves more space;

[0057] Improve competitiveness: gain more advantages in the market and meet customers' requirements for high efficiency and high quality;

[0058] Easy to manage and control: Simplify the production process, making it easier to manage production and control quality.

[0059] Specific implementation method six: This implementation method is a further limitation of specific implementation method one. An insertion space 194 is formed between the outer frame 192 and the inner frame 193 , and the insertion space 194 is adapted to the size of the insertion frame 191 . At the same time, the movable mold 1 is downwardly clamped and the insertion frame 191 is inserted into the interior of the insertion space 194 .

[0060] like Figure 1 and Figure 3-4 As shown, an operation opening 195 is provided on the front of the outer frame 192 and the inner frame 193, and the operation opening 195 is arranged in a "U" shape.

[0061] When the movable mold 1 moves downward, the insert frame 191 at its bottom moves downward and is inserted into the insert space 194, so that the stamping structure between the movable mold 1 and the static mold 12 is covered by the insert frame 191 and the inner frame 193. During the stamping process, the noise generated by the stamping structure can be blocked by the insert frame 191 and the inner frame 193. When the mold is opened, the formed main stamping part 5 and the secondary stamping part 16 can be taken out through the operating port 195.

[0062] Sound insulation felt can be bonded to the inner walls of the insert frame 191 and the inner frame 193 to increase the sound insulation effect of the noise reduction enclosure 19.

[0063] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A noise reduction stamping die, comprising a movable die (1), characterized in that: A pre-punch (4) is fixedly installed in the middle of the bottom of the movable mold (1), and both sides of the pre-punch (4) are screwed and fixed to the connecting seat (2), and at the same time, a driving seat (3) is screwed and fixed to the bottom of the connecting seat (2), and a main punching seat (7) is movably installed at the bottom of the driving seat (3), and the right side surface of the main punching seat (7) is screwed and fixed to the limiting column (10), and the limiting column (10) is inserted into the limiting hole opened in the mounting plate (8), and at the same time, the bottom of the mounting plate (8) is welded to the surface of the support seat (11), and the bottom of the support seat (11) is screwed and fixed to the surface of the static mold (12); A noise reduction enclosure (19) is installed between the movable mold (1) and the static mold (12), the noise reduction enclosure (19) comprising an insert frame (191), and the insert frame (191) is fixedly connected to the bottom of the movable mold (1), while an outer frame (192) is installed at the bottom of the insert frame (191), and an inner frame (193) is arranged inside the outer frame (192), and the bottoms of the inner frame (193) and the outer frame (192) are both fixedly arranged on the surface of the static mold (12).

2. A noise reduction stamping die according to claim 1, characterized in that: The drive seats (3) are arranged in two groups symmetrically mounted on both sides of the pre-punch (4), and the drive seats (3) are made of metal material and have an isosceles trapezoidal cross-section. The two groups of drive seats (3) are respectively arranged above the two groups of main punching seats (7).

3. A noise reduction stamping die according to claim 2, characterized in that: The bottom of the driving seat (3) is provided with a downward pressing inclined surface, and the surface of the main punching seat (7) is provided with a force-bearing inclined surface, and the downward pressing inclined surface and the force-bearing inclined surface are arranged in parallel. At the same time, two groups of U-shaped openings (31) are provided on the two groups of driving seats (3), and the U-shaped openings (31) are arranged opposite to the limiting column (10), and the size of the U-shaped openings (31) is larger than the size of the limiting column (10).

4. The noise reduction stamping die according to claim 1, characterized in that: A fixed pressing ring is welded to the end of the limiting column (10), and a mounting spring (9) is sleeved on the limiting column (10), while the spring (9) is arranged between the pressing ring and the mounting plate (8).

5. The noise reduction stamping die according to claim 1, characterized in that: The two sides of the main punch seat (7) are both screwed to fix the guide seat (6), and the guide seat (6) is provided with a guide hole matched with the size of the guide column (61), and the guide column (61) is inserted into the inside of the guide hole, and the end of the guide column (61) is fixedly connected to the mounting plate (8).

6. The noise reduction stamping die according to claim 2, characterized in that: The surfaces of the two groups of main punching seats (7) are fixedly provided with placement grooves (71), and a workpiece positioning area is formed between the two groups of placement grooves (71). At the same time, the main punching parts (5) are positioned and placed between the two groups of placement grooves (71), and the inner walls of the two groups of main punching seats (7) are provided with main punching grooves (18).

7. The noise reduction stamping die according to claim 1, characterized in that: A card-mounting seat (15) is fixedly mounted on the middle surface of the static mold (12), and a card-mounting space (151) is provided inside the card-mounting seat (15). A secondary stamping part (16) is installed inside the card-mounting space (151), and both the card-mounting space (151) and the secondary stamping part (16) are "T"-shaped structures.

8. The noise reduction stamping die according to claim 7, characterized in that: The two sides of the clamping seat (15) are provided with a left punching groove (17), and the right side of the left punching groove (17) is provided with a right punching groove (14). Meanwhile, the right punching groove (14) is arranged on the left side surface of the secondary punching seat (13), and the top of the secondary punching seat (13) is fixedly connected to the main punching seat (7). The secondary punching seat (13) is arranged in an "L" shape.

9. The noise reduction stamping die according to claim 1, characterized in that: An insertion space (194) is formed between the outer frame (192) and the inner frame (193), and the insertion space (194) is adapted to the size of the insertion frame (191). When the movable mold (1) is downwardly clamped, the insertion frame (191) is inserted into the insertion space (194).

10. The noise reduction stamping die according to claim 9, characterized in that: The front sides of the outer frame (192) and the inner frame (193) are both provided with operating openings (195), and the operating openings (195) are arranged in a "U" shape.

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