Cylinder pressing type plate drawing die

Abstract

The utility model belongs to the technical field of plate stretching, and particularly relates to a cylinder pressing type plate stretching die which comprises an upper die and a lower die which are vertically arranged. One end of the sliding rod is connected with the upper end face of the lower die, and the other end penetrates through the upper die and is slidably connected with the upper die; the center of the upper die is hollowed out, and a stretching mechanism is arranged at the hollowed-out position. And the adsorption mechanism is arranged in the upper die, and the adsorption mechanism is suitable for adsorbing the upper end face of a plate after the plate is stretched, so that the plate moves along with the stretching mechanism and then is separated from the lower die. Along with upward movement of the upper die, the adsorption mechanism is used for adsorbing the upper end face of the stamped and stretched part to drive the part to move upwards and directly move out of the lower die, the time for an operator to take out the part from the lower die is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate stretching, and in particular relates to a cylinder-pressed plate stretching die. Background Art

[0002] Stamping is a forming method that uses a press and a die to apply external force to plates, strips, tubes and profiles to cause them to undergo plastic deformation or separation, thereby obtaining a workpiece (stamping part) of the desired shape and size. For the stamping and stretching of a plate, the plate is placed in a die and stretched by stamping to obtain the desired part shape.

[0003] The sheet metal stamping and stretching die in the prior art requires the operator to manually remove the formed parts from the lower die after the upper die moves up. For the parts after stretching, their upper end faces are flush with the end faces of the lower die, making it difficult to remove the parts and reducing processing efficiency.

[0004] Therefore, a cylinder-pressed sheet metal stretching die is designed to solve the technical problem in the prior art that the parts are in the lower die and are difficult to be taken out after the stamping and stretching are completed. Utility Model Content

[0005] The utility model aims to provide a cylinder pressure type plate stretching die to solve the above technical problems.

[0006] In order to solve the above technical problems, the utility model provides a cylinder-pressed sheet metal stretching die, comprising: an upper die and a lower die arranged vertically; and

[0007] A sliding rod, one end of which is connected to the upper end surface of the lower die, and the other end of which penetrates the upper die and is slidably connected to the upper die;

[0008] The center of the upper mold is hollowed out, and a stretching mechanism is provided at the hollowed out portion; and

[0009] The adsorption mechanism is arranged inside the upper mold. The adsorption mechanism is suitable for adsorbing the upper end surface of the plate after the plate is stretched, so that the plate moves with the stretching mechanism and then separates from the lower mold.

[0010] Furthermore, the surfaces of the upper die and the lower die are both provided with alloy coatings.

[0011] Further, the stretching mechanism comprises:

[0012] The cylinder is arranged above the upper die, and the output end of the cylinder is connected to a gas rod;

[0013] The stretching piece is connected to the bottom end of the gas rod and is suitable for sliding in the central hollow of the upper mold under the drive of the cylinder.

[0014] Furthermore, an active annular plate is provided inside the bottom end of the stretching member; and

[0015] The upper end surface of the annular plate is provided with a plurality of active magnetic blocks.

[0016] Further, the adsorption mechanism comprises:

[0017] The annular adsorption shell is arranged on the lower end surface of the upper mold and is located outside the drawing part;

[0018] The annular adsorption shell is hollow inside, and a driven annular plate is slidably connected to the hollow interior thereof; and

[0019] The upper end surface of the driven annular plate is provided with a plurality of driven magnetic blocks;

[0020] Each of the driven magnetic blocks corresponds to each of the active magnetic blocks.

[0021] Furthermore, a plurality of adsorption holes are provided on the lower end surface of the annular adsorption shell; and

[0022] A plurality of exhaust passages are vertically opened on the upper mold, and the exhaust passages penetrate the upper end surface of the annular adsorption shell.

[0023] Furthermore, the center of the lower mold is hollowed out, and the contour of the central hollowed-out portion is the same as the outer contour of the drawn part; and

[0024] The upper end surface of the lower mold is symmetrically provided with two arc-shaped plates;

[0025] The contour formed between the opposite sides of the two arc-shaped plates is the same as the outer contour of the annular adsorption shell.

[0026] Furthermore, a top plate is provided above the upper mold; and

[0027] A base is provided below the lower mold; wherein

[0028] The top plate and the base are connected via a connecting rod; and

[0029] The connecting rod passes through the upper die, and a limiting block is arranged on the connecting rod above the upper die;

[0030] The cylinder is located on the top plate.

[0031] The beneficial effect of the utility model is that the utility model provides an adsorption mechanism inside the upper die. When the upper die is driven by the cylinder and fits with the lower die to stamp and stretch the plate, as the upper die moves upward, the adsorption mechanism is used to adsorb the upper end surface of the part that has been stamped and stretched, drive the part to move upward, and directly move it out of the lower die, saving the operator's time in taking out the part from the lower die and improving work efficiency.

[0032] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0036] Figure 2 The utility model Figure 1 The enlarged structural diagram of part A in the middle;

[0037] Figure 3 The utility model Figure 1 Schematic diagram of the enlarged structure of part B

[0038] Figure 4 This is a schematic diagram of the overall structure of the utility model when viewed from above.

[0039] Figure 5 The utility model Figure 4 The enlarged structural diagram of the middle C part;

[0040] Figure 6 It is a schematic diagram of the internal sectional structure of the upper mold of the utility model.

[0041] In the figure:

[0042] 1. Upper die; 10. Stretching part; 100. Active annular plate; 101. Active magnetic block; 11. Annular adsorption shell; 110. Driven annular plate; 111. Driven magnetic block; 12. Adsorption hole; 13. Exhaust channel; 14. Limit block; 15. Top plate

[0043] 2. Lower die; 20. Base; 21. Stamping cavity; 22. Forming cavity;

[0044] 3. Connecting rod; 30. Sliding rod;

[0045] 4. Cylinder; 40. Gas rod. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] The sheet metal stamping and stretching die in the prior art requires the operator to manually pick out the formed parts from the lower die after the upper die moves up. For the parts after stretching, their upper end faces are flush with the end faces of the lower die, making it difficult to remove the parts and reducing processing efficiency.

[0048] In order to solve the above technical problems, in at least one embodiment, a cylinder-pressed sheet stretching die is provided, comprising: an upper die 1 and a lower die 2 arranged vertically; and a sliding rod 30, one end of which is connected to the upper end surface of the lower die 2, and the other end of which penetrates the upper die 1 and is slidably connected to the upper die 1; the center of the upper die 1 is hollowed out, and a stretching mechanism is arranged at the hollowed-out part; and an adsorption mechanism is arranged inside the upper die 1, and the adsorption mechanism is suitable for adsorbing the upper end surface of the sheet after the sheet is stretched, so that the sheet moves with the stretching mechanism and then separates from the lower die;

[0049] By arranging an adsorption mechanism inside the upper die, when the upper die is driven by the cylinder to fit with the lower die to stamp and pull the plate, as the upper die moves upward, the adsorption mechanism is used to adsorb the upper end surface of the part that has been stamped and stretched, driving the part to move upward and directly removed from the lower die, saving the operator's time in removing the part from the lower die and improving work efficiency.

[0050] In some embodiments, when it is necessary to stamp and stretch the sheet, the sheet to be processed is placed on the lower die 2, and a stamping cavity 21 is formed between two arc blocks 20 symmetrically fixed on the upper end surface of the lower die 2. The outer contour of the sheet to be processed fits with the inner wall of the stamping cavity 21. At this time, the cylinder 4 is started, and its output end drives the gas rod 40 and the stretching part 10 at the lower end of the gas rod 40 to move downward. The outer contour of the stretching part 40 fits with the inner wall of the forming cavity 22 opened in the center of the lower die 2. As the stretching part 40 moves downward to squeeze the sheet to be processed, the center of the sheet is punched into the forming cavity 22 to stretch it to obtain the required part shape.

[0051] In some embodiments, a driving device may be provided on one side of the upper mold 1 to drive the upper mold 1 to slide up and down on the slide rod 30 (the driving device is the prior art). Before starting to stretch the plate, the upper mold 1 is controlled to slide downward on the slide rod 30 until it is in contact with the lower mold 2. At this time, the annular adsorption shell 11 fixed on the lower end surface of the upper mold 1 is embedded in the stamping cavity 21, and the plate is clamped by the lower end surface of the annular adsorption shell 11 and the upper end surface of the lower mold 2. Then, the center of the plate is stretched by moving the stretching member 40 downward to obtain the desired part shape.

[0052] In some embodiments, when the stretching member 10 has finished processing the plate, the cylinder 4 is started again to drive the stretching member 10 to move upward. During the rising process of the stretching member 10, when the lower end surface of the stretching member 10 is flush with the lower end surface of the annular adsorption shell 11 (the driving device connected to the upper mold 1 is started synchronously, so that the upper mold 1 and the lower end surface of the stretching member 10 are kept flush and the two move upward synchronously), a plurality of active magnetic blocks 101 are fixed to the circumference of the upper end surface of the active annular plate 100 inside the stretching member 10, and a plurality of driven magnetic blocks 111 are arranged on the circumference of the upper end surface of the driven annular plate 110 inside the annular adsorption shell 11, and each active magnetic block 10 1 corresponds to each driven magnetic block 111 one by one, and each active magnetic block 101 has opposite magnetic properties to one side of each driven magnetic block 111. At this time, as the stretching member 10 moves upward, the magnetic attraction between the active magnetic block 101 and the driven magnetic block 111 is used to drive the driven annular plate 110 to slide upward inside the annular adsorption shell 11. Since the lower end surface of the annular adsorption shell 11 fits the upper surface of the processed plate, and a plurality of adsorption holes 12 are provided on the lower end surface of the annular adsorption shell 11, as the driven annular plate 110 moves upward, negative pressure is generated at the adsorption holes 12, which adsorbs the processed plate and drives it to move upward and separate from the interior of the lower die 2.

[0053] In some embodiments, when the upper mold 1 and the stretching piece 10 move up synchronously to the limit block 14 on the connecting rod 3, the driving device connected to the upper mold 1 stops running. At this time, the cylinder 4 drives the stretching piece 10 to continue to move up, so that the active magnetic block 101 and the driven magnetic block 111 are desorbed, and the annular driven plate 110 moves downward inside the annular adsorption shell 11 due to gravity. At this time, the adsorbed plate can move freely and be taken out by the operator.

[0054] In some embodiments, the connecting rod 3 is used to support the top plate 15 so that the top plate 15 is connected to the base 20 .

[0055] In some embodiments, the surfaces of the upper mold 1 and the lower mold 2 are both provided with an alloy coating, which has a wear-resistant effect.

[0056] To summarize, by arranging an adsorption mechanism inside the upper die, when the upper die is driven by the cylinder to fit with the lower die to stamp and pull the plate, as the upper die moves upward, the adsorption mechanism is used to adsorb the upper end surface of the part that has been stamped and stretched, driving the part to move upward and directly move it out of the lower die, saving the operator's time in taking out the part from the lower die and improving work efficiency.

[0057] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0058] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0060] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0061] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0062] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0063] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cylinder pressure type sheet metal stretching die, characterized in that: include: Vertically arranged upper and lower dies; and A sliding rod, one end of which is connected to the upper end surface of the lower die, and the other end of which penetrates the upper die and is slidably connected to the upper die; The center of the upper mold is hollowed out, and a stretching mechanism is provided at the hollowed out portion; as well as The adsorption mechanism is arranged inside the upper mold. The adsorption mechanism is suitable for adsorbing the upper end surface of the plate after the plate is stretched, so that the plate moves with the stretching mechanism and then separates from the lower mold.

2. The cylinder-type sheet metal stretching die according to claim 1, characterized in that: The surfaces of the upper die and the lower die are both provided with alloy coatings.

3. The cylinder-pressed sheet metal stretching die according to claim 1, characterized in that: The stretching mechanism comprises: The cylinder is arranged above the upper die, and the output end thereof is connected with a gas rod; The stretching piece is connected to the bottom end of the gas rod and is suitable for sliding in the central hollow of the upper mold under the drive of the cylinder.

4. The cylinder-pressed sheet metal stretching die according to claim 3, characterized in that: An active annular plate is disposed inside the bottom end of the stretching member; and The upper end surface of the annular plate is provided with a plurality of active magnetic blocks.

5. The cylinder-pressed sheet metal stretching die according to claim 4, characterized in that: The adsorption mechanism comprises: The annular adsorption shell is arranged on the lower end surface of the upper mold and is located outside the drawing part; The annular adsorption shell is hollow inside, and a driven annular plate is slidably connected to the hollow interior thereof; and The upper end surface of the driven annular plate is provided with a plurality of driven magnetic blocks; Each of the driven magnetic blocks corresponds to each of the active magnetic blocks.

6. The cylinder-pressed sheet metal stretching die according to claim 5, characterized in that: The lower end surface of the annular adsorption shell is provided with a plurality of adsorption holes; and A plurality of exhaust passages are vertically opened on the upper mold, and the exhaust passages penetrate the upper end surface of the annular adsorption shell.

7. The cylinder-pressed sheet metal stretching die according to claim 6, characterized in that: The lower die is hollowed out in the center, and the outline of the hollowed-out part is the same as the outer outline of the drawn part; and The upper end surface of the lower mold is symmetrically provided with two arc-shaped plates; The contour formed between the opposite sides of the two arc-shaped plates is the same as the outer contour of the annular adsorption shell.

8. The cylinder-pressed sheet material stretching die according to claim 7, characterized in that: A top plate is disposed above the upper mold; and A base is provided below the lower mold; wherein The top plate and the base are connected via a connecting rod; and The connecting rod passes through the upper die, and a limiting block is arranged on the connecting rod above the upper die; The cylinder is located on the top plate.

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