Bending die and bending equipment

Abstract

The invention provides a bending die and bending equipment. The bending die comprises a base. The lower die is mounted on the base and comprises a mounting seat, and the mounting seat is used for mounting a to-be-bent workpiece; in the bending process, the bending piece is suitable for moving towards the mounting base so as to bend the to-be-bent workpiece; and the adjusting mechanism is connected with the bending piece and is suitable for adjusting the position of the bending piece so as to adjust a gap between the bending piece and the mounting seat when the workpiece to be bent is bent. When workpieces made of different materials need to be bent, the distance between the bending piece and the mounting base can be adjusted through the adjusting mechanism, corresponding springback clearance compensation can be conducted on the workpieces made of different materials, common-mode bending production of different materials is achieved, the production cost is reduced, and meanwhile the stability and accuracy of the bending springback compensation effect are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and particularly to a bending mold and a bending device. Background Art

[0002] Bending molds are commonly used in metal processing to bend metal materials into desired shapes. When metal is subjected to bending stress and deformation, it tends to elastically recover to a certain extent, resulting in a certain springback effect in the bent parts. Moreover, different materials have different springback effects during bending. In the prior art, different molds are often opened for different materials for bending, which is costly and time-consuming, or the same mold is used for workpieces of different materials, and it is necessary to disassemble and assemble bending parts or pad gaskets when switching materials to adjust the bending gap to change the springback effect. Manually disassembling and assembling bending parts is time-consuming and laborious, and the method of adjusting by padding gaskets highly depends on the experience of technicians, and the consistency of repeated adjustment is poor. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the related art. For this purpose, the present invention provides a bending mold and a bending device, aiming to reduce the cost during bending of different materials and improve the stability and accuracy of the bending springback compensation effect.

[0004] The bending mold according to the first aspect embodiment of the present invention includes:

[0005] A base;

[0006] A lower mold, installed on the base, and the lower mold includes a mounting seat for mounting a workpiece to be bent;

[0007] A bending member, during the bending process, the bending member is adapted to move towards the mounting seat to bend the workpiece to be bent;

[0008] An adjusting mechanism, adapted to adjust the position of the bending member to adjust the gap between the bending member and the mounting seat when the bending member bends the workpiece to be bent.

[0009] According to the bending mold of the embodiment of the present invention, the position of the bending member is adjusted by the adjusting mechanism, and then the gap between the bending member and the mounting seat when the bending member bends the workpiece to be bent is adjusted, so as to perform corresponding bending gap compensation on the workpiece to be bent, realize the common mold production of workpieces to be bent of different materials, reduce the bending cost, and at the same time, the bending gap corresponding to each material of the workpiece to be bent can be determined in advance according to the springback effect of the workpiece to be bent of different materials, as the basis for the adjusting mechanism to adjust the distance between the bending member and the mounting seat, so as to improve the stability and accuracy of the bending springback effect compensation.

[0010] According to the bending die of an embodiment of the present invention, the adjusting mechanism includes at least one eccentric member. The eccentric member is rotatably arranged on the base, and the rotation center of the eccentric member is fixed on the base. The eccentric member has multiple sides, and the distances from at least two of the sides to the rotation center are different. During the rotation of the eccentric member, each side is adapted to abut against the bending member to adjust the gap between the bending member and the mounting seat when bending the workpiece to be bent.

[0011] According to the bending die of an embodiment of the present invention, the lower die further includes a wedge block. A first elastic member is connected between the mounting seat and the wedge block. During the bending process, one end of the bending member abuts against the inclined surface of the wedge block, and during the rotation of the eccentric member, each side is adapted to abut against the end surface of the wedge block to adjust the gap between the bending member and the mounting seat.

[0012] According to the bending die of an embodiment of the present invention, at least two of the sides of the eccentric member are provided with first identifiers for indicating the material of the workpiece to be bent; and / or,

[0013] At positions corresponding to at least two of the sides on the upper top surface of the eccentric member, first identifiers for indicating the material of the workpiece to be bent are provided.

[0014] According to an embodiment of the present invention, the eccentric member is a continuous adjustment structure to continuously adjust the gap between the bending member and the mounting seat.

[0015] According to the bending die of an embodiment of the present invention, the eccentric member includes:

[0016] A rotating rod rotatably arranged on the base;

[0017] A main body sleeved on the rotating rod. The main body is formed with a plurality of sliding grooves along the axial direction of the rotating rod, and the main body is provided with a first inclined surface;

[0018] A plurality of sliders. The sliders have second inclined surfaces that wedge with the first inclined surface, and the sliders are slidably arranged in the sliding grooves.

[0019] According to the bending die of an embodiment of the present invention, the eccentric member further includes:

[0020] A first knob sleeved on the rotating rod and adapted to move along the axial direction of the rotating rod;

[0021] A second elastic member. One end is installed on the base, and the other end is adapted to abut against the bottom of the slider to, when the first knob moves along the axial direction of the rotating rod, abut the top of the slider against the first knob so that the slider moves with the first knob.

[0022] The bending die according to an embodiment of the present invention, the rotating rod includes:

[0023] A threaded section, on which the first knob is sleeved;

[0024] An installation section for installing the main body;

[0025] A rotating shaft section, one end of which is connected to the installation section and the other end is rotatably connected to the base.

[0026] In the bending die according to an embodiment of the present invention, a plurality of scale lines are circumferentially arranged on the first knob, and an indicating line for determining the reading of the scale line is arranged on the wedge-shaped block.

[0027] In the bending die according to an embodiment of the present invention, a plurality of positioning holes are circumferentially arranged at the bottom of the first knob, and at least one positioning post matching with the positioning holes is arranged on the slider.

[0028] In the bending die according to an embodiment of the present invention, the number of the eccentric members is at least two, and the adjusting mechanism further includes:

[0029] A second knob rotatably arranged on the base;

[0030] A transmission mechanism connecting the second knob and the plurality of eccentric members to drive each eccentric member to rotate when the second knob rotates.

[0031] In the bending die according to an embodiment of the present invention, the transmission mechanism includes:

[0032] A plurality of gears respectively installed on the second knob and each eccentric member;

[0033] A rack slidably arranged on the base, and the rack meshes with the plurality of gears.

[0034] The bending device according to the second aspect embodiment of the present invention includes a power mechanism and the above-mentioned bending die, and the power mechanism is connected to the bending member to drive the bending member to move towards the mounting seat.

[0035] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 is a schematic structure diagram of the bending die provided by an embodiment of the present invention Figure 1 ;

[0038] Figure 2 is a top view of the bending die provided by an embodiment of the present invention;

[0039] Figure 3 is a schematic structure diagram of the bending die provided by an embodiment of the present invention Figure 2 ;

[0040] Figure 4 is a schematic structure diagram of the eccentric member provided by an embodiment of the present invention Figure 1 ;

[0041] Figure 5 is a schematic structure diagram of the eccentric member provided by an embodiment of the present invention Figure 2 ;

[0042] Figure 6 is a schematic structure diagram of the slider provided by an embodiment of the present invention;

[0043] Figure 7 is a schematic structure diagram of the rotating rod provided by an embodiment of the present invention;

[0044] Figure 8 is a top view of the eccentric member provided by an embodiment of the present invention;

[0045] Figure 9 is a schematic structure diagram of the eccentric member provided by an embodiment of the present invention Figure 3 ;

[0046] Figure 10 is a schematic structure diagram of the bending die provided by an embodiment of the present invention Figure 4 。

[0047] Reference numerals:

[0048] 1. Base;

[0049] 2. Lower die; 21. Mounting seat; 22. Wedge block; 23. First elastic member;

[0050] 3. Bending member;

[0051] 4. Adjusting mechanism; 41. Eccentric member; 411. Side surface; 412. Rotating rod; 413. Main body; 414. Slide block; 4131. First inclined surface; 4132. Chute; 4141. Second inclined surface; 415. First knob; 416. Second elastic member; 4121. Threaded section; 4122. Mounting section; 4123. Rotating shaft section; 4151. Scale line; 4152. Positioning hole; 4141. Positioning post; 42. Second knob; 43. Transmission mechanism; 431. Gear; 432. Rack; 421. Opening. Detailed implementation mode

[0052] The following further describes in detail the implementation mode of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0053] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of 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 to the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0055] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "above", and "on the top" of the second feature can be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under the bottom" of the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0056] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0057] An embodiment of the present invention, as Figures 1 to 9 shown, provides a bending die and a bending device.

[0058] According to an embodiment of the present invention, please refer to Figure 1 , the bending die includes a base 1, a lower die 2, a bending member 3 and an adjusting mechanism 4. The lower die 2 is installed on the base 1. The lower die 2 includes a mounting seat 21 for mounting the workpiece to be bent. During the bending process, the bending member 3 is adapted to move towards the mounting seat 21 to bend the workpiece to be bent. The adjusting mechanism 4 is adapted to adjust the position of the bending member 31 to adjust the gap between the bending member 3 and the mounting seat 21 when the bending member 3 bends the workpiece to be bent.

[0059] It can be understood that the mounting seat 21 can be used to support and position the workpiece to be bent and ensure the accuracy and stability during the bending process. The bending member 3 is installed above the lower die 2 and can be composed of hard alloy steel, having the bending curvature and shape required for bending. It can be connected to a hydraulic system, and the precise movement control of the bending member 3 can be achieved through the pressure and flow rate of the hydraulic system, and it is used to apply pressure to the workpiece to be bent to form the bending of the workpiece to be bent.

[0060] In the bending die of this embodiment, the operator can adjust the position of the bending member 3 through the adjusting mechanism 4, and then adjust the gap between the bending member 3 and the mounting seat 21 when the bending member 3 bends the workpiece to be bent, perform corresponding bending gap compensation on the workpiece to be bent, realize the common die production of workpieces to be bent with different materials, reduce the bending cost. At the same time, the bending gap corresponding to each material of the workpiece to be bent can be determined in advance according to the springback effect of the workpieces to be bent with different materials, and used as the basis for the adjusting mechanism 4 to adjust the gap between the bending member 3 and the mounting seat 21 when the bending member 3 bends the workpiece to be bent, improving the stability and accuracy of the compensation for the bending springback effect.

[0061] It should be noted that the way the adjusting mechanism 4 adjusts the distance between the mounting base 21 and the bending member 3 can be an automatic adjustment method. For example, a lead screw can be provided on the bending member 3, and the movement of the lead screw drives the bending member 3 to move. The position of the bending member 3 is adjusted by controlling the stroke of the lead screw by a servo motor, so as to realize the bending gap compensation during bending of different materials and control the springback effect of the workpiece to be bent.

[0062] According to an embodiment of the present invention, in combination with Figure 2 and Figure 3 As shown, the adjusting mechanism 4 includes: at least one eccentric member 41, the eccentric member 41 is rotatably arranged on the base 1, and the rotation center of the eccentric member 41 is fixed on the base 1. The eccentric member 41 has a plurality of side surfaces 411, and the distances from at least two side surfaces 411 to the rotation center are different; during the rotation of the eccentric member 41, each side surface 411 is adapted to abut against the bending member 3 to adjust the distance between the mounting base 21 and the bending member 3.

[0063] It can be understood that the eccentric member 41 is rotatably arranged on the base 1. Due to the eccentric setting of the eccentric member 41, at least two or more side surfaces 411 thereof have different distances from the rotation center axis. During the rotation of the eccentric member 41, its different side surfaces 411 can respectively abut against the bending member 3 to achieve the purpose of adjusting the gap between the mounting base 21 and the bending member 3; in an alternative embodiment, the distances from each side surface 411 to the rotation center are different, realizing multiple gear adjustments. Each workpiece to be bent of each material can correspond to a side surface 411 of the eccentric member 41. Based on the springback effect of the workpiece to be bent of different materials, the distance between its corresponding side surface 411 and the rotation center axis is set. Thus, when bending a workpiece of a certain material is required, the eccentric member 41 can be rotated so that the side surface 411 corresponding to this material abuts against the bending member 3 to compensate for the bending gap and control the springback effect of the workpiece to be bent.

[0064] The adjustment method for workpieces to be bent of different materials in this embodiment is simple, does not depend on the experience level of technicians, the adjustment method is stable and reliable, and each side surface 411 can correspond to one material, further improving the stability and accuracy of the springback effect compensation during bending.

[0065] According to an embodiment of the present invention, in combination with Figure 1 、 Figure 2 and Figure 3 As shown, the lower die 2 further includes a wedge block 22. A first elastic member 23 is connected between the mounting base 21 and the wedge block 22. During the bending process, one end of the bending member 3 abuts against the inclined surface of the wedge block 22, and during the rotation of the eccentric member 41, each side surface 411 is adapted to abut against the end surface of the wedge block 22 to adjust the gap between the bending member 3 and the mounting base 21.

[0066] It can be understood that in the present embodiment, a bending space is formed between the mounting seat 21 and the wedge block 22; the inclined surface of the wedge block 22 is arranged toward the mounting seat 21, and when bending, one end of the bending member 3 abuts against the inclined surface of the wedge block 22, and the end face of the wedge block 22 abuts against the side surface 411 of the eccentric member 4, so that the position of the bending member 3 can be adjusted by adjusting the position of the wedge block 22, so as to achieve the purpose of adjusting the gap between the bending member 3 and the mounting seat 21 when bending. On the other hand, the wedge block 22 and the eccentric member 4 are in surface-to-surface contact, which further improves the stability, and can ensure the stable operation of the equipment in the high vibration scenario of bending, avoid displacement of the bending member 3 during operation, reduce bending errors, and improve bending accuracy.

[0067] In this embodiment, the first elastic member 23 can be a spring, a spring sheet, or a soft rubber column, and the two ends of the first elastic member 23 are respectively connected to the mounting seat 21 and the wedge block 22, so that the end surface of the wedge block 22 is always in contact with the side surface 411 of the eccentric member 41, and the rotation of the eccentric member 41 is coordinated to achieve the purpose of adjusting the position of the wedge block 22. Optionally, there are multiple first elastic members 23, and the multiple first elastic members 23 are symmetrically arranged between the mounting seat 21 and the wedge block 22, ensuring that the two ends of the mounting seat 21 and the wedge block 22 are aligned, improving the connection stability between the mounting seat 21 and the wedge block 22, and avoiding bending errors.

[0068] Exemplarily, when the eccentric piece 41 is a regular polyhedron such as a regular trihedron, a regular tetrahedron, or a regular pentahedron, the rotation center of the eccentric piece 41 and the axis of the geometric center of the eccentric piece 41 are not on the same straight line. Only in this way can the eccentric rotation of the eccentric piece 41 be achieved, so that at least two or more side surfaces 411 have different distances from the rotation center axis, thereby achieving position adjustment of the wedge block 22 during the rotation of the eccentric piece 41; when the eccentric piece 41 is an irregular polyhedron, it is necessary to ensure that at least two or more side surfaces 411 have different distances from the rotation center axis, so that the purpose of adjusting the distance between the wedge block 22 and the mounting seat 21 can be achieved when the eccentric piece 41 is rotated.

[0069] According to one embodiment of the present invention, Figure 2 and Figure 3 As shown, there are multiple eccentric pieces 41 , and eccentric pieces 41 are disposed at both ends of the wedge block 22 .

[0070] It can be understood that in this embodiment, by arranging the eccentric members 41 at both ends of the wedge block 22, the distribution of the load can be balanced, so that the wedge block 22 is uniformly stressed, reducing the possibility of overload or uneven stress on one side, improving the stability of the movement of the wedge block 22, and avoiding the bending error caused by inconsistent movement distances at both ends of the wedge block 22. In an alternative embodiment, the number of the eccentric members 41 can be two, and the two eccentric members 41 are respectively arranged at both ends of the wedge block 22; in another alternative embodiment, the number of the eccentric members 41 can also be more than two, and the multiple eccentric members 41 are uniformly distributed or non-uniformly distributed along the wedge block 22, which is not limited in this embodiment.

[0071] According to an embodiment of the present invention, as Figure 4 and Figure 5 shown, at least two side surfaces 411 of the eccentric member 41 are provided with first identifiers for indicating the material of the workpiece to be bent; and / or, at positions corresponding to at least two side surfaces 411 on the upper top surface of the eccentric member 41, first identifiers for indicating the material of the workpiece to be bent are provided.

[0072] It can be understood that the distances from at least two side surfaces 411 of the eccentric member 41 to its rotation central axis are different, so that the eccentric member 41 can correspondingly switch at least two different materials of workpieces to be bent. The first identifiers are provided on the at least two side surfaces 411. For example, "A", "B", "C", etc. can be marked on the eccentric member 41 to represent different materials, or the materials can be directly marked on the eccentric member 41, which is not limited in this embodiment. The first identifier is used to indicate the material of the workpiece to be bent corresponding to this side surface 411, so that when the operator bends workpieces to be bent with different materials, the side surface 411 corresponding to this material can be rotated to abut against the wedge block 22, realizing the bending springback compensation of the workpiece to be bent with the corresponding material. In an alternative embodiment, the first identifier can also be provided on the upper top surface of the eccentric member 41, which is convenient for the operator to observe and confirm, and reduces the possibility of misoperation.

[0073] According to an embodiment of the present invention, as Figure 5 and Figure 6 shown, the eccentric member 41 includes a main body 413 and a plurality of mounting blocks (not shown in the figure), and the plurality of mounting blocks are detachably mounted on the main body 413 to form a plurality of side surfaces 411.

[0074] It can be understood that in this embodiment, the mounting block and the main body 413 are detachably connected. The detachable connection methods include, but are not limited to, threaded connection, pin connection, snap connection, etc. As long as the installation and disassembly of the mounting block and the main body 413 can be achieved, this embodiment does not make specific limitations here. By designing the mounting block to be detachably connected, the mounting block can be disassembled and replaced. On the one hand, it is convenient to maintain the mounting block, and on the other hand, a variety of other different mounting blocks can be replaced to adapt to the bending springback compensation of more different types of workpiece materials, improving the application range of the bending die.

[0075] In another alternative embodiment, the mounting block can also be integrally formed with the main body 413, which has a simple and firm structure and improves the structural strength and stability of the eccentric member 41.

[0076] According to an embodiment of the present invention, as Figure 10 shown, the eccentric member 41 is a fixed polyhedron structure with a plurality of side surfaces 411, and the distance from each side surface 411 of the eccentric member 41 to its rotation center axis is fixed and cannot be adjusted. Thus, during the rotation of the eccentric member 41, different side surfaces 411 with a fixed distance from the rotation center axis abut against the wedge block 22, which can stably adjust the position of the wedge block 22 and ensure the accuracy of the position adjustment of the wedge block 22.

[0077] According to an embodiment of the present invention, the eccentric member 41 is a continuously adjustable structure to continuously adjust the gap between the bending member 3 and the mounting seat 21. For example, in some embodiments, the eccentric member 41 can be an eccentric wheel, which can infinitely adjust the gap between the bending member 3 and the mounting seat 21 during rotation. In other embodiments, a continuously adjustable structure can also be added to the eccentric member, such as adjusting the side surface 411 of the eccentric member 41 to adjust the distance between the side surface 411 and the rotation center of the eccentric member 41.

[0078] According to an embodiment of the present invention, in combination with Figure 2 、 Figure 5 and Figure 6 shown, the eccentric member 41 includes a rotating rod 412, a main body 413 and a plurality of sliders 414. The rotating rod 412 is rotatably arranged on the base 1, the main body 413 is sleeved on the rotating rod 412, the main body 413 is formed with a plurality of sliding grooves 4132 along the axial direction of the rotating rod 412, and the main body 413 is provided with a first inclined surface 4131; the slider 414 has a second inclined surface 4141 that wedges with the first inclined surface 4131, and the slider 414 is slidably arranged in the sliding groove 4132.

[0079] It should be noted that even for the workpieces to be bent with the same specification and material, there may be fluctuations in the springback effect due to different batches of incoming materials. At this time, it is necessary to finely adjust the distance between the side surface 411 of the eccentric body and the axis of the rotation center, so as to realize the fine adjustment and stepless adjustment of the distance between the mounting seat 21 and the wedge block 22.

[0080] In this embodiment, the axis where the rotating rod 412 is located is the rotation center axis of the eccentric body. One side of the slider 414 is the second inclined surface 4141, and the other side of the slider 414 opposite to the second inclined surface 4141 forms the side surface 411. The slider 414 is slidably arranged in the chute 4132 and can slide up and down along the chute 4132. Since the first inclined surface 4131 of the chute 4132 is wedged with the second inclined surface 4141 of the slider 414, when the slider 414 slides up and down along the chute 4132, the distance between the side surface 411 on one side of the slider 414 and the rotating rod 412 will also change accordingly. Thus, the distance between the mounting seat 21 and the wedge block 22 can be finely adjusted. When bending workpieces of the same material but different incoming batches, the operator can finely adjust the bending gap by adjusting the up and down movement of the slider 414, further improving the accuracy of the bending die to compensate for the bending springback gap and improving the bending precision.

[0081] Exemplarily, the chute 4132 in this embodiment is a dovetail groove, and the slider 414 is provided with corresponding protrusions, which can be completely embedded in the dovetail groove to install the slider 414 on the main body 413. The design of the dovetail groove improves the connection strength and stability between the slider 414 and the main body 413, and can also prevent the rotation, distortion or loosening of the slider 414, improving the adjustment precision of the slider 414.

[0082] According to an embodiment of the present invention, in combination with Figure 2 and Figure 5 as shown, the eccentric member 41 further includes a first knob 415 and a second elastic member 416. The first knob 415 is sleeved on the rotating rod 412 and is adapted to move along the axial direction of the rotating rod 412; one end of the second elastic member 416 is installed on the base 1, and the other end is adapted to abut against the bottom of the slider 414, so that when the first knob 415 moves along the axial direction of the rotating rod 412, the top of the slider 414 is abutted against the first knob 415, and the slider 414 moves with the first knob 415.

[0083] It can be understood that in this embodiment, the second elastic member 416 is in a compressed state, and the elastic force of the second elastic member 416 causes both ends of the slider 414 to abut against the first knob 415 and the second elastic member 416 respectively. When the operator rotates the first knob 415 to move the first knob 415 upward, under the elastic action of the second elastic member 416, the slider 414 moves upward along the chute 4132; when the operator rotates the first knob 415 to move the first knob 415 downward, the first knob 415 can push the slider 414 to move downward along the chute 4132, serving to adjust the distance between the side surface 411 of one side of the slider 414 and the rotating rod 412. By adjusting the displacement of the first knob 415 moving up and down, the purpose of finely adjusting the distance between the mounting base 21 and the wedge block 22 is achieved.

[0084] Exemplarily, the second elastic member 416 is a plunger spring, which is made of high-strength metal wire, can withstand large pressures and loads, and the plunger spring has highly reliable elastic characteristics. It can store mechanical energy when compressed and restore its original shape when the pressure is released. Compared with other springs, the plunger spring has a larger deformation amount and compression force under the same size, so it can provide more energy storage capacity in a limited space, saving installation space and having high stability and durability.

[0085] According to an embodiment of the present invention, in combination with Figure 2 、 Figure 5 and Figure 7 As shown, the rotating rod 412 includes a threaded section 4121, a mounting section 4122, and a rotating shaft section 4123. A first knob 415 is sleeved on the threaded section 4121. The mounting section 4122 is used for mounting the main body 413. One end of the rotating shaft section 4123 is connected to the mounting section 4122, and the other end of the rotating shaft section 4123 is rotatably connected to the base 1.

[0086] In this embodiment, the inner side of the first knob 415 is provided with threads. The first knob 415 is installed on the threaded section 4121 of the rotating rod 412. The threaded section 4121 cooperates with the first knob 415 for spiral displacement adjustment. When the first knob 415 is turned, it can move up and down on the threaded section 4121, improving the connection strength and stability between the first knob 415 and the rotating rod 412, and also improving the adjustment accuracy of the first knob 415; the mounting section 4122 is fixedly installed with the main body 413. An installation step can be provided at the mounting section 4122 for axially positioning the main body 413, and it can also improve the installation strength between the rotating rod 412 and the main body 413; the rotating shaft section 4123 is rotatably installed on the base 1 to realize the eccentric rotation of the eccentric member 41.

[0087] According to an embodiment of the present invention, as Figure 2As shown in the figure, a plurality of scale lines 4151 are circumferentially arranged on the first knob 415, and an indicating line (not shown in the figure) for determining the reading of the scale lines 4151 is arranged on the wedge-shaped block 22.

[0088] In this embodiment, the scale lines 4151 cooperate with the indicating line, which is convenient for the operator to accurately measure the rotation angle of the first knob 415, and then determine the displacement of the slider 414, so as to accurately adjust the distance between the mounting seat 21 and the wedge-shaped block 22, and improve the adjustment accuracy.

[0089] It can be understood that readings can also be marked beside the scale lines 4151 for the convenience of the operator to read. The form and accuracy of the scale lines 4151 can be designed according to actual use requirements, and no specific limitation is made in this embodiment.

[0090] According to an embodiment of the present invention, as Figure 5 shown, a plurality of positioning holes 4152 are circumferentially arranged at the bottom of the first knob 415, and at least one positioning post 4141 matching the positioning holes 4152 is arranged on the slider 414.

[0091] It can be understood that the number of the positioning holes 4152 can be multiple and evenly arranged at the bottom of the first knob 415. The number of the positioning holes 4152 determines the adjustment accuracy of the first knob 415. The more the number of the positioning holes 4152, the higher the adjustment accuracy of the first knob 415. In an alternative embodiment, the positioning post 4141 is a plunger spring, and a ball is arranged at the upper end of the plunger spring. When the first knob 415 rotates, the ball on the plunger spring can slide in different positioning holes 4152 to fix the rotation position of the first knob 415; at the same time, when the plunger spring cooperates with the ball to slide in different positioning holes 4152, a certain sound can be generated to provide a feedback signal for the operator to rotate the first knob 415, enhance the user's operation experience, and enable the operator to confirm that the first knob 415 is working properly when hearing the sound, avoiding misoperation or incorrect adjustment, thereby improving the accuracy and efficiency of the operation.

[0092] According to an embodiment of the present invention, as Figure 9 shown, the number of the eccentric members 41 is at least two, and the adjusting mechanism 4 further includes a second knob 42 and a transmission mechanism 43. The second knob 42 is rotatably arranged on the base 1, and the transmission mechanism 43 connects the second knob 42 and the plurality of eccentric members 41 to drive each eccentric member 41 to rotate when the second knob 42 rotates.

[0093] It can be understood that in this embodiment, when switching workpieces to be bent with different materials, each eccentric member 41 needs to be rotationally adjusted so that the side surface 411 corresponding to this material on each eccentric member 41 abuts against the wedge block 22. For the convenience of adjustment, a second knob 42 and a transmission mechanism 43 can be provided, and the transmission mechanism 43 is connected to the second knob 42 and multiple eccentric members 41. In this way, when replacing workpieces to be bent with different materials, the synchronous adjustment of multiple eccentric members 41 can be achieved by rotating the second knob 42, improving the adjustment efficiency and facilitating the operation of the operator.

[0094] According to an embodiment of the present invention, as Figure 9 shown, the transmission mechanism 43 includes: a rack 432 and multiple gears 431. The multiple gears 431 are respectively installed on the second knob 42 and each eccentric member 41. The rack 432 is slidably arranged on the base 1, and the rack 432 meshes with the multiple gears 431. In this embodiment, by providing the gears 431 and the rack 432, precise transmission can be achieved, with small return error, high adjustment accuracy, and at the same time having high wear resistance and durability, and a long service life.

[0095] It can be understood that in addition to the transmission method through the gears 431 and the rack 432, transmission can also be carried out through belt drive, chain drive, hydraulic drive, pneumatic drive, etc. For example, in another alternative embodiment, a power mechanism such as a motor or an oil cylinder can also be used to drive the rack 432, and the full-automatic switching of the eccentric member 41 can be achieved in combination with electrification. Users can design according to usage requirements, which will not be elaborated here.

[0096] According to an embodiment of the present invention, as Figure 9 shown, the second knob 42 is provided with a plurality of openings 421 along the circumferential direction for cooperating with a lever to rotate the second knob 42. In this embodiment, the second knob 42 is provided with a plurality of openings 421 along the circumferential direction, which is convenient for rotating the second knob 42 in cooperation with the lever, and the operation is relatively labor-saving, facilitating the user to rotate the second knob 42. It can be understood that the number of the openings 421 can be multiple and evenly distributed along the circumferential direction of the second knob 42. In this way, when the second knob 42 rotates to any angle, the operator can adjust the second knob 42 through the lever.

[0097] According to an embodiment of the second aspect of the present invention, a bending device is provided, including a power mechanism and the above-mentioned bending die. The power mechanism is connected to the bending member 3 to drive the bending member 3 to move towards the mounting seat 21 to bend the workpiece to be bent.

[0098] It can be understood that since the bending die has the beneficial effects of the above embodiment, the bending device also has the above beneficial effects, which will not be elaborated in this embodiment.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered by the protection scope of the present invention.

Claims

1. A bending die, characterized in that, it includes: a base; a lower die installed on the base, the lower die includes a mounting seat for mounting the workpiece to be bent; a bending member which is adapted to move towards the mounting seat during the bending process to bend the workpiece to be bent; an adjusting mechanism adapted to adjust the position of the bending member to adjust the gap between the bending member and the mounting seat when bending the workpiece to be bent.

2. The bending die according to claim 1, characterized in that, the adjusting mechanism includes at least one eccentric member which is rotatably arranged on the base, the rotation center of the eccentric member is fixed on the base, the eccentric member has a plurality of side surfaces, and at least two of the side surfaces are at different distances from the rotation center. During the rotation of the eccentric member, each side surface is adapted to abut against the bending member to adjust the gap between the bending member and the mounting seat when bending the workpiece to be bent.

3. The bending die according to claim 2, characterized in that, the lower die further includes a wedge block, and a first elastic member is connected between the mounting seat and the wedge block. During the bending process, one end of the bending member abuts against the inclined surface of the wedge block, and during the rotation of the eccentric member, each side surface is adapted to abut against the end surface of the wedge block to adjust the gap between the bending member and the mounting seat.

4. The bending die according to claim 2, characterized in that, at least two of the side surfaces of the eccentric member are provided with first marks for indicating the material of the workpiece to be bent; and / or, first marks for indicating the material of the workpiece to be bent are provided at positions corresponding to at least two of the side surfaces on the upper top surface of the eccentric member.

5. The bending die according to any one of claims 2-4, characterized in that, the eccentric member is a continuous adjustment structure to continuously adjust the gap between the bending member and the mounting seat.

6. The bending die according to claim 5, characterized in that, the eccentric member includes: a rotating rod rotatably arranged on the base; a main body sleeved on the rotating rod, the main body is formed with a plurality of sliding grooves along the axial direction of the rotating rod, and the main body is provided with a first inclined surface; a plurality of sliders, the sliders have a second inclined surface wedged with the first inclined surface, and the sliders are slidably arranged in the sliding grooves.

7. The bending die according to claim 6, characterized in that, the eccentric member further includes: a first knob sleeved on the rotating rod and adapted to move along the axial direction of the rotating rod; a second elastic member, one end of which is installed on the base and the other end is adapted to abut against the bottom of the slider, so that when the first knob moves along the axial direction of the rotating rod, the top of the slider abuts against the first knob to make the slider move with the first knob.

8. The bending die according to claim 7, characterized in that, the rotating rod includes: a threaded section on which the first knob is sleeved; a mounting section for mounting the main body; a rotating shaft section, one end of which is connected to the mounting section and the other end is rotatably connected to the base.

9. The bending die according to claim 7, characterized in that, The first knob is circumferentially provided with a plurality of scale lines, and the wedge block is provided with an indicating line for determining the reading of the scale lines.

10. The bending die according to claim 7, characterized in that a plurality of positioning holes are circumferentially arranged at the bottom of the first knob, and at least one of the sliders is provided with a positioning post matching with the positioning holes.

11. The bending die according to any one of claims 2-4, characterized in that the number of the eccentric members is at least two, and the adjusting mechanism further includes: a second knob rotatably arranged on the base; a transmission mechanism connecting the second knob and the plurality of eccentric members to drive each of the eccentric members to rotate when the second knob rotates.

12. The bending die according to claim 11, characterized in that the transmission mechanism includes: a plurality of gears respectively mounted on the second knob and each of the eccentric members; a rack slidably arranged on the base, and the rack meshes with the plurality of gears.

13. A bending device, characterized in that it includes a power mechanism and the bending die according to any one of claims 1-12, and the power mechanism is connected to the bending member to drive the bending member to move towards the mounting seat.

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