Novel precise positioning reverse jacking device for V-shaped mold

Abstract

The invention discloses a V-die novel fine positioning reverse ejection device which comprises an upper die base, a lower die base, a lower die reverse ejection knock-out rod, an upper die forming male die, a lower die forming male die and a V-die reverse ejection knock-out rod, wherein the bottom of the upper die base is provided with an upper die reverse ejection knock-out rod; the bottom of the lower die base is sequentially provided with foot pads and a lower supporting plate, the lower die base is provided with a movable inner positioning carrier pressing block, the movable inner positioning carrier is connected into the movable inner positioning carrier pressing block, and the spring assembly is connected to the lower die base and penetrates through the movable inner positioning carrier pressing block to be connected to the movable inner positioning carrier. The movable inner positioning carrier is provided with a movable inner positioning part, a machined product is placed on the forming plate and positioned on the movable inner positioning part, and the forming plate is connected to the movable inner positioning carrier pressing block. According to the invention, when the upper die reverse ejection rod is just in contact with a product to be bent and formed on the upper die forming male die, the movable inner positioning straight body can be separated from the inner positioning hole of the product in advance under the action of the movable inner positioning carrier, so that the occurrence of material carrying at an inner pipe position is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of molds, and in particular relates to a novel precision positioning reverse ejection device for a V-mold. Background Art

[0002] In sheet metal die stamping technology, the accuracy of the bending edge size is extremely high, which has been a long-standing technical problem that has troubled people. Especially when the product to be bent has no notch positioning, due to the lack of effective positioning points, the product is prone to problems such as inadequate bending and deviation, which in turn leads to defects such as poor bending size and skew rolling.

[0003] The existing bending mold structure usually uses an external elastic top tube position or a fixed internal tube position structure for positioning when the product to be bent has no notch positioning. However, both structures have some obvious defects. Although the external elastic top tube position can play a positioning role to a certain extent, it is difficult to accurately control the size of its elastic force, which often leads to unstable product positioning, thereby affecting the accuracy of the bending forming size. The fixed internal tube position structure has the problem of difficulty in adjusting the height of the straight body. When the straight body is too high, it is easy to cause the inner tube position to pull the material and cause the product to deform; when the straight body is too low, it will cause inaccurate product positioning, which will also affect the accuracy of the bending forming size. Summary of the invention

[0004] The purpose of the present invention is to propose a new type of V-die precision positioning reverse top device in order to solve the problems of poor bending and forming dimensions of high-precision products, product deformation caused by pulling materials at fixed inner tube positions, and product misplacement at spring-type outer tube positions.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a new type of V-mold precision positioning reverse top device, comprising:

[0006] An upper die seat, the bottom of which is provided with an upper pad and an upper die counter-pushing rod, and the bottom of the upper pad is provided with an upper die forming male die;

[0007] A lower die base, the bottom of which is provided with a foot and a lower support plate in sequence, a movable inner positioning carrier pressure block is provided on the lower die base, the movable inner positioning carrier is connected in the movable inner positioning carrier pressure block, a spring assembly is connected to the lower die base, and passes through the movable inner positioning carrier pressure block to be connected to the movable inner positioning carrier, a movable inner positioning is provided on the movable inner positioning carrier, the processed product is placed on a forming plate and positioned on the movable inner positioning, and the forming plate is connected to the movable inner positioning carrier pressure block.

[0008] As a further description of the above technical solution:

[0009] The water pump is provided with the drainage pipe, the placement groove is provided with a drainage hole, and the water spray pipe extends to the outside of the drainage hole.

[0010] As a further description of the above technical solution:

[0011] The upper die reverse push rod is located above the movable inner positioning carrier.

[0012] As a further description of the above technical solution:

[0013] A sliding groove is arranged in the movable inner positioning carrier pressing block, and the movable inner positioning carrier is slidably connected in the sliding groove.

[0014] As a further description of the above technical solution:

[0015] The forming plate is provided with a bending groove, and the bending groove is located directly below the upper forming male die.

[0016] As a further description of the above technical solution:

[0017] The upper die base is provided with a limit column, and the lower die base is provided with an outer guide column, and the limit column matches the outer guide column.

[0018] As a further description of the above technical solution:

[0019] The lower die base is provided with an avoidance hole, and the spring assembly is installed in the avoidance hole.

[0020] As a further description of the above technical solution:

[0021] The inner wall of the bending groove matches the bottom of the upper mold forming male mold.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, when the upper mold forming male mold just begins to contact the product to be bent, the movable inner positioning body can leave the inner positioning hole of the product in advance under the action of the movable inner positioning carrier to prevent the inner tube from carrying material, and the effect is particularly significant.

[0024] 2. The present invention comprises an upper die reverse push rod installed on the upper die seat, a movable inner positioning carrier and a spring assembly in the lower die seat, the movable inner positioning carrier and the lower die seat are designed to be slidably matched, and preferably, when the upper die forming male die just begins to contact the product to be bent, the movable inner positioning is under the action of the movable inner positioning carrier, and the movable inner positioning body leaves the product inner positioning hole in advance, and the upper die forming male die begins to bend. During the folding process of both sides of the bent product, there is no positioning body pulling material in the product inner positioning hole, and the upper die forming male die At the bottom dead center, the product has completed bending and forming; finally, the upper template forming male mold and the forming V-groove on the forming plate are pressed together to complete the process operation stroke; after the bending and forming is completed, the beer machine slider and the upper die seat have reached the bottom dead center and start to move upward; under the action of the spring assembly installed on the lower die seat, the original movable inner positioning assembly position is restored; prepare for the next operation, and achieve a complete production stroke, avoiding poor bending and forming dimensions, rolling obliquely, inner tube position pulling material causing product deformation, and spring-type outer tube position prone to product damage due to misplacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 It is a structural schematic diagram of a new type of V-die precision positioning anti-top device in which the upper die anti-top hitting rod just contacts the movable inner positioning carrier.

[0027] Figure 2 It is a structural schematic diagram of a new type of V-die precision positioning reverse ejection device in which the movable inner positioning body can leave the positioning hole in the product in advance when the upper die forming male die just begins to contact the product to be bent and formed.

[0028] Figure 3 It is a structural schematic diagram of product bending and forming in a new type of V-die precision positioning reverse top device.

[0029] Legend:

[0030] 1. Upper die seat; 2. Upper pad; 3. Upper die forming male die; 4. Limit column; 5. Upper die anti-top rod; 6. Movable internal positioning; 7. Movable internal positioning carrier; 8. Movable internal positioning carrier pressure block; 9. Spring assembly; 10. Lower die seat; 11. External guide column; 12. Pad foot; 13. Lower support plate; 14. Processed product; 15. Sliding groove; 16. Forming plate; 17. Bending groove; 18. Avoidance hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] See also Figure 1-3 The present invention provides a technical solution: a new type of V-mold precision positioning reverse top device, comprising:

[0038] An upper die base 1, the bottom of which is provided with an upper pad 2 and an upper die counter-pushing rod 5, and the bottom of the upper pad 2 is provided with an upper die forming male die 3;

[0039] A lower die base 10 has a foot 12 and a lower support plate 13 disposed at its bottom in sequence. A movable inner positioning carrier block 8 is disposed on the lower die base 10. A movable inner positioning carrier 7 is connected to the movable inner positioning carrier block 8. A spring assembly 9 is connected to the lower die base 10 and passes through the movable inner positioning carrier block 8 to be connected to the movable inner positioning carrier 7. A movable inner positioning 6 is disposed on the movable inner positioning carrier 7. A processed product 14 is placed on a molding plate 16 and positioned on the movable inner positioning 6. The molding plate 16 is connected to the movable inner positioning carrier block 8.

[0040] The upper die reverse push rod 5 is located above the movable inner positioning carrier 7. When the upper die reverse push rod just starts to contact the product to be bent, the movable inner positioning is under the action of the movable inner positioning carrier, and the movable inner positioning body leaves the inner positioning hole of the product at the same time, thereby improving the bending accuracy and bending quality.

[0041] The movable inner positioning carrier pressing block 8 is provided with a sliding groove 15, and the movable inner positioning carrier 7 is slidably connected in the sliding groove 15. The upper surface of the movable inner positioning carrier can be limited to be flush with the lower die seat and move vertically downward, so that the product will not be displaced, thereby improving the bending quality.

[0042] The forming plate 16 is provided with a bending groove 17 , and the bending groove 17 is located directly below the upper forming male mold 3 .

[0043] The upper die base 1 is provided with a limit column 4 , and the lower die base 10 is provided with an outer guide column 11 , and the limit column 4 matches the outer guide column 11 .

[0044] The lower die base 10 is provided with an avoidance hole 18, and the spring assembly 9 is installed in the avoidance hole 18. The spring assembly is processed in the lower die base with sufficient and reasonable avoidance to ensure the space required for the movable inner positioning carrier to descend to the lower dead point, so as to achieve the normal avoidance requirement after bending and forming.

[0045] The inner wall of the bending groove 17 matches the bottom of the upper mold forming mold 3 .

[0046] Working principle: During the downward movement of the upper die anti-top rod fixed on the upper die seat, the upper die anti-top rod contacts the movable inner positioning carrier for the first time; when the beer machine slide block and the upper die seat continue to move downward, when the upper die forming male die just begins to contact the product to be bent, the movable inner positioning carrier and the spring assembly can cause the movable inner positioning body to leave the product's inner positioning hole in advance, and the upper die forming male die begins to bend. During the upward bending process of both sides of the bent product, there is no positioning body pulling material in the product's inner positioning hole, and the upper die forming male die When the die reaches the bottom dead center, the product has completed bending and forming; finally, the upper template forming male die and the forming V-groove on the forming plate are pressed together to complete the process operation stroke; after the bending and forming is completed, the beer machine slider and the upper die seat have reached the bottom dead center and start to move upward; under the action of the spring assembly installed on the lower die seat, the original movable inner positioning assembly position is restored; prepare for the next operation, and achieve a complete production stroke, avoiding poor bending and forming dimensions, rolling obliquely, inner tube position pulling material causing product deformation, and the spring-type outer tube position is prone to product failure to be placed in place and damage the product.

[0047] 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 new type of V-mold precision positioning reverse top device, characterized in that: include: An upper die seat, the bottom of which is provided with an upper pad and an upper die counter-pushing rod, and the bottom of the upper pad is provided with an upper die forming male die; A lower die base, the bottom of which is provided with a foot and a lower support plate in sequence, a movable inner positioning carrier pressure block is provided on the lower die base, the movable inner positioning carrier is connected in the movable inner positioning carrier pressure block, a spring assembly is connected to the lower die base, and passes through the movable inner positioning carrier pressure block to be connected to the movable inner positioning carrier, a movable inner positioning is provided on the movable inner positioning carrier, the processed product is placed on a forming plate and positioned on the movable inner positioning, and the forming plate is connected to the movable inner positioning carrier pressure block.

2. A new type of V-mold precision positioning reverse top device according to claim 1, characterized in that: The upper die reverse push rod is located above the movable inner positioning carrier.

3. A new type of V-mold precision positioning reverse top device according to claim 2, characterized in that: A sliding groove is arranged in the movable inner positioning carrier pressing block, and the movable inner positioning carrier is slidably connected in the sliding groove.

4. A new type of V-mold precision positioning reverse top device according to claim 1, characterized in that: The forming plate is provided with a bending groove, and the bending groove is located directly below the upper forming male die.

5. A new type of V-mold precise positioning and reverse top device according to claim 1, characterized in that: The upper die base is provided with a limit column, and the lower die base is provided with an outer guide column, and the limit column matches the outer guide column.

6. A new type of V-mold precision positioning reverse top device according to claim 1, characterized in that: The lower die base is provided with an avoidance hole, and the spring assembly is installed in the avoidance hole.

7. A new type of V-mold precise positioning and reverse top device according to claim 1, characterized in that: The inner wall of the bending groove matches the bottom of the upper mold forming male mold.

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