Self-adaptive adjusting mechanism

Abstract

The utility model relates to the technical field of stamping dies, in particular to a self-adaptive adjusting mechanism which comprises a main body block, a sliding block, a base and an electric control driving assembly. According to the utility model, a friction angle self-locking principle is utilized, so that the cushion block mechanism can bear enough stamping material force; and the movement direction is changed through the inclined plane design by utilizing the wedge principle. The movement of the driving block in the vertical direction is converted into the movement of the sliding block in the horizontal direction, so that the horizontal movement of the sliding block is realized; and the movement of the sliding block in the horizontal direction is converted into the movement of the main body block in the vertical direction, so that the height change of the main body block in the vertical direction is realized, and the gap between the pressing ring and the female die is adjusted. The self-adaptive adjusting mechanism is simple in structure, height adjustment of the cushion block is simple and convenient, and the problem of height electric control adjustment of the drawing die body block is solved. Therefore, the drawing gap adjusting device can solve the technical problems that in the prior art, a cushion block and a gasket are adopted for adjusting the drawing gap, operation is tedious, adjusting precision is low, the skill requirement for adjusting personnel is high, and efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a self-adaptive adjustment mechanism. Background Art

[0002] In the drawing die, the sheet metal is in a contracted state at various positions when the die is closed, and the gaps at various positions between the pressure ring and the die directly affect the contraction state of the sheet metal; the deformation caused by pressure can easily lead to a gap between the pressure ring and the die, and this gap will affect the drawing quality and the service life of the drawing die; this gap is adjusted by adjusting the height of the pads at various positions of the pressure ring, and the optimal state of sheet metal drawing can be achieved by adjusting the height of the pads.

[0003] The adaptive adjustment mechanism in the prior art generally adjusts the gap between the pressing ring and the die by adding a gasket under the pad. This adjustment method has the following disadvantages: First, the adjustment process requires workers to open the mold, remove the pad, and add gaskets of different thicknesses. The operation process is complicated and cumbersome, and the record of the adjustment process is poor, which requires high skills of the adjustment personnel. Second, the minimum thickness accuracy of the gasket is 0.02mm, and the adjustment accuracy is not enough, resulting in an unsatisfactory adjustment state. Third, the gasket material is soft, resulting in a low overall bearing capacity of the main block. After long-term stamping deformation, the height of the pad will change, thereby affecting the adjustment accuracy of the main block. Fourth, when the boundary quality of the drawn sheet changes, it cannot be adjusted in time. In addition, the mold needs to be readjusted when the press or production line is replaced. From manufacturing and assembly to debugging, and then to mass production, multiple adjustments are required, which greatly increases the manufacturing cycle, debugging cycle, manufacturing cycle and stamping production cycle of the mold.

[0004] Therefore, the prior art has the disadvantages of complicated drawing gap adjustment process, low adjustment accuracy, high skill requirements for adjustment personnel, and low efficiency. Utility Model Content

[0005] The utility model aims to provide an adaptive adjustment mechanism, which can solve the technical problems of the existing adaptive adjustment mechanism, which has a complicated adjustment process, high skill requirements for adjustment personnel and low efficiency.

[0006] To achieve the above-mentioned purpose, the utility model is designed with an adaptive adjustment mechanism, including a main body block, a slider, a base and an electric control drive assembly, wherein the main body block is slidably arranged on the slider, and the contact surface between the main body block and the slider is an inclined surface, and the direction of the inclined surface is inclined downward along the extension direction of the slider; the slider is slidably arranged on the base, and the electric control drive assembly is arranged in the base, and the driving part of the electric control drive assembly passes through the base and abuts against the slider.

[0007] As a preferred solution, the main block, the slider and the base are all heat treated to improve the hardness and increase the bearing capacity of the top of the main block.

[0008] Furthermore, a wave spring for retreat is provided on the main body block.

[0009] Furthermore, a return spring for retreating is provided on the sliding block.

[0010] As a preferred embodiment, the electronically controlled drive assembly includes a drive block, a motor, and a screw assembly connecting the drive block and the motor, wherein the motor is disposed at the lower end of the base, the drive block is disposed in a guide hole of the base, and the side surface of the drive block abuts against the side surface of the slider.

[0011] Furthermore, the abutting surfaces of the driving block and the slider are mutually matched inclined surfaces, and the direction of the inclined surfaces is inclined downward along the extending direction of the slider.

[0012] As a preferred embodiment, the adaptive adjustment mechanism also includes an upper shell, the interior of the upper shell is a cavity structure, the upper end of the upper shell is provided with a mounting hole connected to the cavity structure, the slider is arranged in the cavity structure, the main body block is arranged in the mounting hole, and the upper end of the main body block protrudes from the upper shell.

[0013] As a preferred solution, the adaptive adjustment mechanism further comprises a cover plate, which is arranged on the side of the upper shell and is used to cover the side cavity of the upper shell.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides an adaptive adjustment mechanism, which utilizes the principle of inclined wedges to reasonably arrange the positional relationship between the servo motor and the mounting surface of the pad main block, ensuring that support ribs can be arranged under the mounting surface of the main block of the mold to ensure the strength and bearing capacity of the mold. The direction of movement is changed by means of an inclined surface design. The vertical movement of the drive block is converted into the horizontal movement of the slider to achieve horizontal movement of the slider; the horizontal movement of the slider is then converted into the vertical movement of the main block to achieve a change in the height of the main block in the vertical direction to adjust the gap between the pressing ring and the die. The adaptive adjustment mechanism has a simple structure and solves the problem of electrically controlling the height adjustment of the main block of the drawing die, while the main block needs to withstand a large working force. It is an actuator for the intelligent production of the drawing die.

[0016] The high-precision adjustment of the pad height is achieved by using the precise rotation of the servo motor, the deceleration of the lead screw group and the wedge structure, so that the height adjustment of the pad can be accurate to 0.01mm;

[0017] The friction angle self-locking principle is used to ensure that the main block on the top can withstand a sufficiently large punching pressure without displacement; the main block, slider, and base are quenched and have a high hardness, ensuring that the top of the main block can withstand 1000MPa without deformation and height change;

[0018] By utilizing the wedge principle, the movement direction is adjusted by changing it twice, and the position relationship between the servo motor and the pad mounting surface is reasonably arranged to ensure that supporting ribs can be arranged under the pad mounting surface to ensure the strength and bearing capacity of the mold.

[0019] The adaptive adjustment mechanism utilizes the friction angle self-locking principle so that the main block at the top of the adaptive main block will not be displaced when under pressure, and the height remains unchanged. The main block, slider, and base are heat-treated and have a high hardness. Therefore, the adaptive mechanism ensures that the top of the main block can withstand a pressure of 20 tons without deformation and height change, so that the height adjustment of the main block can be accurate to 0.01mm.

[0020] The self-adaptive adjustment mechanism can use a touch screen, buttons, etc. outside the mold to perform self-adaptive height adjustment of the main body block; the utility model can also collect drawing quality information and make timely height adjustments to the main body block.

[0021] Therefore, the utility model can solve the technical problems of the existing adaptive adjustment mechanism, such as complicated adjustment process, low adjustment accuracy, high skill requirements for adjustment personnel, and low efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0023] Figure 2 It is an explosion diagram of the utility model.

[0024] Figure 3 It is a cross-sectional view of the utility model in the rising state.

[0025] Figure 4 It is a cross-sectional view of the utility model in the retracted state.

[0026] Description of reference numerals:

[0027] Cover plate 1, upper shell 2 (mounting hole 21), main body block 3, wave spring 4, return spring 5, slider 6, base 7, electric control drive assembly;

[0028] Electronically controlled drive assembly: limit plate 8, drive block 9, screw assembly (screw nut 10, screw shaft 11, screw connector 12), motor 13. DETAILED DESCRIPTION

[0029] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and 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 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" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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.

[0032] The utility model provides an adaptive adjustment mechanism, which is used in automobile stamping and drawing dies, and includes a main body block, a slider, a base and an electric control drive assembly. The utility model uses the friction angle self-locking principle to enable the pad mechanism to withstand a sufficiently large stamping material force; a servo motor is used to adjust the pad height outside the die; the servo motor is used to accurately rotate, and the lead screw group and the wedge structure are decelerated to achieve high-precision adjustment of the pad height; the wedge principle is used to change the position of the servo motor and the main body block to ensure that the pad installation height is small, and the mold used can arrange support ribs under the installation surface. The direction of movement is changed by inclined surface design. The vertical movement of the drive block is converted into the horizontal movement of the slider to achieve horizontal movement of the slider; and the horizontal movement of the slider is converted into the vertical movement of the main body block to achieve the height change of the main body block in the vertical direction to adjust the gap between the press ring and the die. The adaptive adjustment pad mechanism has a simple structure, and the pad height adjustment is simple and convenient. Therefore, the utility model can solve the technical problems of the prior art that the pad and shim are used to adjust the drawing gap, which is cumbersome, has low adjustment accuracy, requires high skills of the adjustment personnel, and has low efficiency.

[0033] The utility model can use touch screen, buttons and other methods outside the mold to adjust the height of the adaptive main block. The main block, slider and base are heat treated and have high hardness, so the adaptive main block can withstand sufficiently large pressure without height changes; in addition, the height adjustment of the main block should be accurate to 0.01mm; the utility model can also collect drawing quality information and make timely height adjustments to the main block. The installation height of the main block is recommended not to exceed 80mm, so that support ribs can be arranged under the installation surface of the adaptive main block of the mold to increase the force on the top of the main block, ensuring that the main block can withstand 20 tons of pressure without deformation and the height remains unchanged.

[0034] like Figure 1 , 2 As shown, the utility model relates to an adaptive adjustment mechanism, which includes a cover plate 1, an upper shell 2, a main body block 3, a wave spring 4, a return spring 5, a slider 6, a base 7, and an electronically controlled drive assembly.

[0035] The cover plate 1 is disposed on the side of the upper shell 2 and is used to cover the side cavity of the upper shell 2 .

[0036] The interior of the upper shell 2 is a cavity structure, and the upper end of the upper shell 2 is provided with a mounting hole 21 connected to the cavity structure. The slider 6 is arranged in the cavity structure, and the main body block 3 is arranged in the mounting hole 21, and the upper end of the main body block 3 protrudes from the upper shell 2. The mounting hole 21 in the upper shell 2 plays a role in limiting and guiding the movement of the main body block 3, which can improve the adjustment accuracy of the adaptive adjustment mechanism. The base 7 is fastened and assembled on the pressing ring of the mold by screws, and the main body block 3 is ensured to have a supporting rib under it.

[0037] The main body block 3 is slidably arranged on the slider 6, the slider 6 is slidably arranged on the base 7, the electric control drive assembly is arranged in the base 7, and the driving part of the electric control drive assembly passes through the base 7 and abuts against the slider 6. The contact surface between the main body block 3 and the slider 6 is an inclined surface, and the direction of the inclined surface is inclined downward along the extension direction of the slider 6. The extension direction of the slider is as shown in FIG. Figure 3 The direction of the arrow in the middle is shown. The angle of the inclined surface is smaller than the friction angle. When the main block is adjusted in place and bears the die drawing and pressing force, it can ensure that the slider will not retreat when pressure is applied to the main block, thereby realizing the self-locking of the mechanism. The main block 3 is provided with a wave spring 4 for retreat. The slider 6 is provided with a return spring 5 for retreat.

[0038] The slider can move horizontally in the base, one end of the slider contacts the drive, and the other end is installed with a return spring. When the drive is adjusted down, the spring ensures that the slider returns to its position. The upper end of the slider contacts the main block with a small slope, and the slope angle is smaller than the friction angle. When the main block is adjusted in place and bears the die drawing and pressing force, it can ensure that when pressure is applied to the main block, the slider will not retreat, thereby realizing the self-locking mechanism.

[0039] The friction angle is based on the fact that when an object is acted upon by friction and is in a critical state of sliding, the static friction reaches its maximum value. At this time, the angle between the support force of the support surface and the friction force is the composite of the support force of the support surface and the support force. This angle is called the friction angle.

[0040] The adaptive adjustment mechanism uses the friction angle self-locking principle to ensure that the top of the adaptive main block 3 will not be displaced when under pressure, and the height remains unchanged. The main block, slider, and base are heat-treated and have high hardness, ensuring that the main block 3 can withstand 20 tons of pressure without deformation and height change. The utility model uses the principle of inclined wedges to reasonably arrange the positional relationship between the servo motor and the mounting surface of the pad main block, ensuring that the mold can be arranged with support ribs under the mounting surface of the main block to ensure the strength and bearing capacity of the mold.

[0041] The main block adopts a wave spring reset, which ensures that the main block returns to its original position when it is lowered under the premise of small volume. The working force of the main block is directly borne by the main block, slider and base, ensuring that it can withstand large working force.

[0042] The electric control drive assembly includes a drive block 9, a motor 13, and a lead screw assembly connecting the drive block 9 and the motor 13. The motor 13 is a servo motor and is arranged at the lower end of the base 7. The drive block 9 is arranged in a guide hole of the base 7, and the side surface of the drive block 9 abuts against the side surface of the slider 6. The abutting surface of the drive block 9 and the slider 6 is a mutually matching inclined surface, and the direction of the inclined surface is inclined downward along the extension direction of the slider 6.

[0043] The electric control drive assembly is staggered with the main block, so that the effective installation height of the main block is thinner, ensuring that when the main block is used in the drawing die, support ribs can be set under the main block to increase the force of the main block. The screw shaft 11 is connected to the stepper motor 13 through the connector 12, and the screw nut 10 is installed on the drive block 9. The stepper motor is fixed to the base 7 by screws; the drive block 9 is installed in the base, and the drive block 9 can move up and down in the guide hole of the base to adjust the main block 3, and the limit plate 8 is used to limit the upper and lower limits of the movement of the drive block 9. The main block is precisely adjusted by controlling the stepper motor.

[0044] The electric control drive assembly is driven by a servo motor, which can be controlled outside the mold to adjust the height of the adaptive main block 3; the precise rotation of the servo motor, through the deceleration of the lead screw group and the wedge structure, allows the height adjustment of the main block 3 to be accurate to 0.01mm. The utility model can also use a laser rangefinder sensor to collect the boundary information of the drawn sheet, compare it with the qualified boundary, and give the adaptive main block a corresponding adjustment instruction so that the main block can be adjusted in time.

[0045] The adjustment process of the adaptive adjustment mechanism:

[0046] The stepper motor rotates forward, driving the lead screw group to move the drive block 9 upward. The drive block 9 pushes the slider 6 to extend, and the slider 6 pushes the main block 3 to rise, so that the height of the main block 3 is adjusted upward. After adjustment, the height A = 2.63mm. The adjustment direction is as follows Figure 3 Indicated by the arrow.

[0047] The stepper motor reverses and drives downward. The reset spring 5 makes the slider 6 retreat. The wave spring 4 makes the main block 3 descend. The height of the main block 3 is adjusted downward. After adjustment, the height B = 2mm. The adjustment direction is as follows: Figure 4 Indicated by the arrow.

[0048] The adaptive adjustment mechanism has a simple structure and can solve the problem of electrically controlling the height adjustment of the main block of the drawing die. The main block needs to withstand a large working force and is an executive mechanism for the intelligent production of the drawing die.

[0049] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An adaptive adjustment mechanism, characterized in that: The invention comprises a main body block (3), a slider (6), a base (7) and an electric control drive assembly, wherein the main body block (3) is slidably arranged on the slider (6), the contact surface between the main body block (3) and the slider (6) is an inclined surface, and the direction of the inclined surface is inclined downward along the extension direction of the slider (6); the slider (6) is slidably arranged on the base (7), the electric control drive assembly is arranged in the base (7), and the drive part of the electric control drive assembly passes through the base (7) and abuts against the slider (6).

2. The adaptive adjustment mechanism according to claim 1, characterized in that: The main block (3), the sliding block (6) and the base (7) are all heat-treated to increase the hardness and the bearing capacity of the top of the main block (3).

3. An adaptive adjustment mechanism according to claim 2, characterized in that: The main body block (3) is provided with a wave spring (4) for retreat.

4. The adaptive adjustment mechanism according to claim 3, characterized in that: The slide block (6) is provided with a return spring (5) for retreating.

5. An adaptive adjustment mechanism according to any one of claims 1 to 4, characterized in that: The electric control drive assembly comprises a drive block (9), a motor (13), and a lead screw assembly connecting the drive block (9) and the motor (13); the motor (13) is arranged at the lower end of the base (7); the drive block (9) is arranged in a guide hole of the base (7); and the side surface of the drive block (9) abuts against the side surface of the slider (6).

6. The adaptive adjustment mechanism according to claim 5, characterized in that: The contact surfaces between the driving block (9) and the slider (6) are mutually matching inclined surfaces, and the direction of the inclined surface is inclined downward along the extending direction of the slider (6).

7. The adaptive adjustment mechanism according to claim 6, characterized in that: The adaptive adjustment mechanism further comprises an upper shell (2), the interior of the upper shell (2) being a cavity structure, the upper end of the upper shell (2) being provided with a mounting hole (21) communicating with the cavity structure, the slider (6) being arranged in the cavity structure, the main body block (3) being arranged in the mounting hole (21), and the upper end of the main body block (3) protruding from the upper shell (2).

8. The adaptive adjustment mechanism according to claim 7, characterized in that: The adaptive adjustment mechanism further comprises a cover plate (1), which is arranged on the side of the upper shell (2) and is used to cover the side cavity of the upper shell (2).

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