High-precision product bending device with precision fine adjustment structure

Abstract

The invention discloses a high-precision product bending device with a precision fine tuning structure, which comprises an upper die mechanism, a lower die mechanism and a bending mechanism, the lower die mechanism is located below the upper die mechanism, a forming cavity is formed in the lower die mechanism, and the forming cavity is located below the punch; the fine adjustment mechanism comprises an upper insert assembly and a lower insert assembly, the upper insert assembly is arranged on the upper die mechanism and wraps the punch, the lower insert assembly is arranged on the lower die mechanism, and the forming cavity is formed in the lower insert assembly. Compared with the prior art, the problem that the cost is intangibly increased due to the fact that different products need to be provided with different molds can be solved.

Description

Technical Field

[0001] The invention relates to the field of molds, and in particular to a high-precision product bending device with a precise fine-tuning structure. Background Art

[0002] Stamping machine tools are commonly used mechanical equipment in the field of metal processing. Stamping machine tools are stamping equipment that uses molds to stamp materials. Commonly used stamping equipment is divided into two categories: mechanical presses and hydraulic presses. Generally, mechanical presses are used. The type of stamping equipment is selected according to the nature of the stamping process, production batch, size and precision size of the stamped parts, etc. (1) For small and medium-sized punching parts, bending parts or deep drawing parts, open mechanical presses are mainly used; (2) For large and medium-sized stamping parts, closed mechanical presses are mostly used; (3) For stamping parts produced in small batches, hydraulic presses or friction presses are mostly used; (4) For stamping parts produced in large batches, high-speed presses should be used as much as possible; (5) For stamping parts with complex shapes, multi-station automatic presses (CNC presses) can be used.

[0003] In stamping die technology, the product bending process can only be completed by a single die, that is, one die can only correspond to one product. Due to the limitation of the process, different products need to have different die, which increases the cost invisibly: such as design cost, transfer cost in the middle of the process, machine use cost and die frame debugging cost, etc., and also reduces production efficiency and wastes manpower and material resources. This has been a very troubling problem for a long time. People in the industry have also used various methods to deal with the above problems, but with little success. Summary of the invention

[0004] The purpose of the present invention is to provide a high-precision product bending device with a precise fine-tuning structure in order to solve the problem that different products need to have different molds, which invisibly increases the cost.

[0005] In order to achieve the above object, the present invention provides a high-precision product bending device with a precision fine-tuning structure, which comprises:

[0006] An upper die mechanism, wherein a punch is provided on the upper die mechanism;

[0007] A lower die mechanism, the lower die mechanism is located below the upper die mechanism, the lower die mechanism is provided with a forming cavity, and the forming cavity is located below the punch;

[0008] The fine-tuning mechanism comprises an upper insert assembly and a lower insert assembly, wherein the upper insert assembly is arranged on the upper die mechanism, the upper insert assembly wraps the punch, the lower insert assembly is arranged on the lower die mechanism, and the molding cavity is arranged on the lower insert assembly.

[0009] As a further description of the above technical solution:

[0010] The lower insert assembly includes two insert units, which are symmetrically arranged. The gap between the two insert units forms the molding cavity. The insert unit includes a fixed insert and a movable insert. The fixed insert is fixedly connected to the lower mold mechanism, and the movable insert is movably connected to one side of the fixed insert.

[0011] As a further description of the above technical solution:

[0012] A slide groove is arranged in the movable insert, a slider is arranged in the slide groove, a connecting rod is arranged on the slider, the connecting rod is connected to the fixed insert, and an electromagnet is arranged in the movable insert.

[0013] As a further description of the above technical solution:

[0014] A distance sensor is arranged in the movable insert.

[0015] As a further description of the above technical solution:

[0016] An elastic element is arranged on the connecting rod, one end of the elastic element is connected to the movable insert, and one end of the elastic element is connected to the fixed insert.

[0017] As a further description of the above technical solution:

[0018] The elastic element is a spring.

[0019] As a further description of the above technical solution:

[0020] The fixed insert is provided with a screw hole, a bolt is provided in the screw hole, and the bolt passes through the screw hole and is connected with the lower mold mechanism.

[0021] As a further description of the above technical solution:

[0022] The upper die mechanism comprises an upper die seat, a clamping plate and a stripping plate, wherein the clamping plate is connected to the bottom of the upper die seat, the stripping plate is connected to the bottom of the clamping plate, and the clamping plate wraps the upper insert assembly.

[0023] As a further description of the above technical solution:

[0024] The lower die mechanism comprises a lower die base and a lower die plate arranged on the lower die base, and the lower insert assembly is arranged on the lower die plate.

[0025] As a further description of the above technical solution:

[0026] The lower die base is provided with a through hole, the through hole passes through the lower die base, and the through hole is located directly below the forming cavity.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. In the present invention, the punch is connected to the upper mold mechanism by setting an upper insert assembly. The upper insert assembly and the lower insert assembly have the same structure. The spacing between the two insert units can be adjusted by replacing or trimming the upper insert assembly, so that punches of different specifications can be fixed to meet the production requirements of different products. At the same time, the lower insert assembly is replaced or trimmed synchronously to make the molding cavity match the size of the corresponding product.

[0029] 2. In the present invention, an electromagnet and a distance sensor are arranged in the insert unit, and the distance sensor can detect the distance between the two movable inserts. When the distance between the two movable inserts changes, the two electromagnets can be energized to generate magnetic force, so that the two magnets attract or repel each other, thereby achieving the purpose of adjusting the distance between the movable inserts, and further achieving the purpose of adjusting the size of the molding cavity. Tight adjustment can be achieved by controlling the size of the current. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 It is a structural schematic diagram of a high-precision product bending device with a precise fine-tuning structure.

[0032] Figure 2 It is a structural schematic diagram of an insert unit in a high-precision product bending device with a precise fine-tuning structure.

[0033] Figure 3 The figure is a schematic diagram of the installation structure of a punch in a high-precision product bending device with a precise fine-tuning structure.

[0034] Legend:

[0035] 1. Upper die mechanism; 2. Lower die mechanism; 21. Lower die seat; 22. Lower mold plate; 3. Punch; 4. Forming cavity; 5. Upper insert assembly; 6. Lower insert assembly; 61. Insert unit; 611. Fixed insert; 612. Moving insert; 7. Slide; 8. Slider; 9. Connecting rod; 10. Elastic element; 11. Upper die seat; 12. Clamp; 13. Unloading plate; 14. Screw hole; 15. Bolt; 16. Through hole; 17. Electromagnet. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] See also Figure 1-3 The present invention provides a high-precision product bending device with a precision fine-tuning structure, comprising:

[0042] An upper die mechanism 1, wherein a punch 3 is provided on the upper die mechanism 1;

[0043] A lower die mechanism 2, the lower die mechanism 2 is located below the upper die mechanism 1, a forming cavity 4 is provided on the lower die mechanism 2, and the forming cavity 4 is located below the punch 3;

[0044] The fine-tuning mechanism includes an upper insert assembly 5 and a lower insert assembly 6. The upper insert assembly 5 is arranged on the upper mold mechanism 1, and the upper insert assembly 5 wraps the punch 3. The lower insert assembly is arranged on the lower mold mechanism 2, and the molding cavity 4 is arranged on the lower insert assembly 6.

[0045] The lower insert assembly 6 includes two insert units 61, which are symmetrically arranged. The gap between the two insert units 61 forms the molding cavity 4. The insert unit 61 includes a fixed insert 611 and a movable insert 612. The fixed insert 611 is fixedly connected to the lower mold mechanism 2, and the movable insert 612 is movably connected to one side of the fixed insert 611.

[0046] The lower insert assembly and the upper insert assembly are arranged symmetrically, and the lower insert assembly and the upper insert assembly have the same structure. By adjusting the distance between the movable insert and the fixed insert, the diameter spacing of the insert units can be adjusted.

[0047] The movable insert 612 is provided with a slide groove 7, the slide groove 7 is provided with a slider 8, the slider 8 is provided with a connecting rod 9, the connecting rod 9 is connected to the fixed insert 611, and the movable insert 612 is provided with an electromagnet 17. The movable insert is provided with a distance sensor. The distance sensor is one of an optical distance sensor, an infrared distance sensor or an ultrasonic distance sensor.

[0048] The distance sensor can detect the distance between the two moving inserts. When the distance between the two moving inserts changes, the two electromagnets can be energized to generate magnetic force. When the distance between the two moving inserts needs to be reduced, the two electromagnets are connected to currents to generate mutually attractive magnetic forces, so that the moving inserts are attracted to each other and move closer to each other; when the distance between the two moving inserts needs to be increased, the two electromagnets are connected to currents to generate mutually repulsive magnetic forces, so that the moving inserts repel each other and move away from each other; thereby achieving the purpose of adjusting the distance between the moving inserts.

[0049] The connecting rod 9 is provided with an elastic element 10, one end of the elastic element 10 is connected to the movable insert 612, and one end of the elastic element 10 is connected to the fixed insert 611. The elastic element 10 is a spring.

[0050] The fixed insert 611 is provided with a screw hole 14, in which a bolt 15 is provided, and the bolt 15 penetrates the screw hole 14 and is connected to the lower mold mechanism 2. This facilitates installation and disassembly of the fixed insert, and reduces the difficulty of assembling the fixed insert.

[0051] The upper die mechanism 1 includes an upper die base 11 , a clamping plate 12 and a stripping plate 13 . The clamping plate 12 is connected to the bottom of the upper die base 11 . The stripping plate 13 is connected to the bottom of the clamping plate 12 . The clamping plate 12 wraps the upper insert assembly 5 .

[0052] The lower die mechanism 2 includes a lower die base 21 and a lower die plate 22 disposed on the lower die base 21 , and the lower insert assembly 6 is disposed on the lower die plate.

[0053] The lower die base 21 is provided with a through hole 16, which penetrates the lower die base 21 and is located directly below the molding cavity 4. The through hole facilitates the discharge of waste materials and prevents waste materials from accumulating on the mold.

[0054] Working principle: The punch is connected to the upper die mechanism by setting the upper insert assembly. The upper insert assembly and the lower insert assembly have the same structure. The spacing between the two insert units can be adjusted by replacing or trimming the upper insert assembly, so that punches of different specifications can be fixed to meet the production needs of different products. At the same time, the lower insert assembly is replaced or trimmed synchronously to make the molding cavity match the size of the corresponding product; by setting an electromagnet and a distance sensor in the insert unit, the distance sensor can detect the distance between the two moving inserts. When the distance between the two moving inserts changes, the two electromagnets can be energized to make The electromagnet generates magnetic force, causing the two magnets to attract or repel each other, thereby achieving the purpose of adjusting the distance between the movable inserts, and then achieving the purpose of adjusting the size of the molding cavity. Tight adjustment can be achieved by controlling the magnitude of the current. After the product is processed, the movable inserts can be controlled to move away from each other for a certain distance, which can facilitate product removal, and then return to the set distance. During the product processing, the size of the molding cavity can be detected in real time by the distance sensor. The distance sensor will promptly feed back the detection information to the electromagnet, so that the electromagnet can be energized in time for adaptive adjustment, thereby improving the processing quality of the product.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision product bending device with a precision fine-tuning structure, characterized in that: include: An upper die mechanism, wherein a punch is provided on the upper die mechanism; A lower die mechanism, the lower die mechanism is located below the upper die mechanism, the lower die mechanism is provided with a forming cavity, and the forming cavity is located below the punch; The fine-tuning mechanism comprises an upper insert assembly and a lower insert assembly, wherein the upper insert assembly is arranged on the upper die mechanism, the upper insert assembly wraps the punch, the lower insert assembly is arranged on the lower die mechanism, and the molding cavity is arranged on the lower insert assembly.

2. A high-precision product bending device with a precision fine-tuning structure according to claim 1, characterized in that: The lower insert assembly includes two insert units, which are symmetrically arranged. The gap between the two insert units forms the molding cavity. The insert unit includes a fixed insert and a movable insert. The fixed insert is fixedly connected to the lower mold mechanism, and the movable insert is movably connected to one side of the fixed insert.

3. A high-precision product bending device with a precision fine-tuning structure according to claim 2, characterized in that: A slide groove is arranged in the movable insert, a slider is arranged in the slide groove, a connecting rod is arranged on the slider, the connecting rod is connected to the fixed insert, and an electromagnet is arranged in the movable insert.

4. A high-precision product bending device with a precision fine-tuning structure according to claim 2, characterized in that: A distance sensor is arranged in the movable insert.

5. The high-precision product bending device with a precision fine-tuning structure according to claim 3 is characterized in that: An elastic element is arranged on the connecting rod, one end of the elastic element is connected to the movable insert, and one end of the elastic element is connected to the fixed insert.

6. A high-precision product bending device with a precision fine-tuning structure according to claim 5, characterized in that: The elastic element is a spring.

7. The high-precision product bending device with a precision fine-tuning structure according to claim 2, characterized in that: The fixed insert is provided with a screw hole, a bolt is provided in the screw hole, and the bolt passes through the screw hole and is connected with the lower mold mechanism.

8. The high-precision product bending device with a precision fine-tuning structure according to claim 1, characterized in that: The upper die mechanism comprises an upper die seat, a clamping plate and a stripping plate, wherein the clamping plate is connected to the bottom of the upper die seat, the stripping plate is connected to the bottom of the clamping plate, and the clamping plate wraps the upper insert assembly.

9. The high-precision product bending device with a precision fine-tuning structure according to claim 1, characterized in that: The lower die mechanism comprises a lower die base and a lower die plate arranged on the lower die base, and the lower insert assembly is arranged on the lower die plate.

10. A high-precision product bending device with a precision fine-tuning structure according to claim 9, characterized in that: The lower die base is provided with a through hole, the through hole passes through the lower die base, and the through hole is located directly below the forming cavity.

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