Bending die and bending apparatus

Abstract

The application discloses a bending die and a bending equipment, and relates to the technical field of bending processing, wherein the bending die comprises a lower die, a bending structure arranged on the lower die, a mounting seat for mounting a workpiece to be bent, a bending piece arranged on the peripheral side of the mounting seat and used for moving towards the mounting seat to bend the workpiece to be bent, and an adjusting mechanism arranged on the lower die, wherein the adjusting mechanism comprises a distance adjusting assembly connected with the bending piece in a transmission mode and an adjusting driving assembly connected with the distance adjusting assembly in a driving mode, and the adjusting driving assembly is used for driving the distance adjusting assembly to move so as to adjust the distance between the bending piece and the mounting seat.

Description

Technical Field

[0001] This invention relates to the field of bending processing technology, and in particular to a bending die and bending equipment. Background Technology

[0002] In some cases, the front door and other parts of the washing machine are produced using the same mold but with different materials. The difference in material properties causes differences in the springback angle of the bending forming, requiring frequent mold adjustments to reserve different sizes of bending springback gaps for parts made of different materials.

[0003] Therefore, multiple sets of dies with different bending gaps can be used, but this is time-consuming, labor-intensive, and costly; alternatively, the same bending die can be used to bend parts of different materials, and the bending gap can be adjusted by disassembling and assembling the bending parts inside the die or installing shims. However, performing the above operations requires technicians with rich experience and skills, is still very time-consuming and labor-intensive, and can easily damage the die. Summary of the Invention

[0004] The main objective of this invention is to provide a bending mold and bending equipment, which aims to ensure the overall consistency of bent parts made of different materials after assembly.

[0005] To achieve the above objectives, the present invention provides a bending die comprising:

[0006] Lower mold;

[0007] A bending structure is provided on the lower die. The bending structure includes a mounting base and a bending member disposed around the mounting base. The mounting base is used to mount the workpiece to be bent, and the bending member is used to move toward the mounting base to bend the workpiece.

[0008] An adjustment mechanism is provided on the lower die. The adjustment mechanism includes a spacing adjustment component that is connected to the bending member via a transmission, and an adjustment drive component that is connected to the spacing adjustment component via a drive. The adjustment drive component is used to drive the spacing adjustment component to move so as to adjust the spacing between the bending member and the mounting base.

[0009] In one embodiment, the spacing adjustment assembly includes a first slider and a second slider, the second slider being tractively connected to the bending member, the first slider and the second slider being tractively coupled, and the adjustment drive assembly being used to drive the first slider to move along a first direction so that the second slider can move along a second direction to move the bending member closer to or away from the mounting base, wherein the first direction and the second direction are intersecting.

[0010] In one embodiment, when the bending member bends the workpiece to be bent, the second slider is used to transmit the force applied to it by the bending member in a second direction to the first slider, so as to restrict the movement of the first slider in the first direction.

[0011] In one embodiment, the first slider and the second slider are slidably connected along a third direction, which is located between the first direction and the second direction. When the second slider applies a force to the first slider along the second direction, the sliding force of the first slider along the third direction is less than the contact friction force between the first slider and the second slider.

[0012] In one embodiment, the adjustment drive assembly includes a first linear drive member, and the spacing adjustment assembly further includes a first commutator member. The first commutator member is connected to the first linear drive member and the first slider respectively. The first linear drive member is used to drive the first commutator member to move, thereby causing the first slider to move along a first direction.

[0013] In one embodiment, the first slider includes a plurality of first sub-sliders spaced apart along a first direction, and any two adjacent first sub-sliders are connected by a connecting rod. The second slider includes a plurality of second sub-sliders that slide in a one-to-one manner with the plurality of first sliders.

[0014] In one embodiment, the first slider further includes a sub-adjustment component, which is used to connect the first sub-slider to the connecting rod and to adjust the distance between the connecting rod and the first sub-slider, so as to adjust the position of the first sub-slider in a first direction.

[0015] In one embodiment, the adjustment mechanism further includes a first elastic reset member connected to the first slider. The first elastic reset member is used to drive the first slider to reset when the force exerted by the adjustment drive assembly on the first slider is removed.

[0016] In one embodiment, the spacing adjustment assembly includes a second reversing member, which is in transmission cooperation with the bending member. The adjustment drive assembly is used to drive the second reversing member to move along the height direction of the bending die, so that the bending member can move along a second direction to approach or move away from the mounting base, wherein the second direction is intersected with the height direction of the bending die.

[0017] In one embodiment, the adjustment drive assembly includes a second linear drive member, the second reversing member includes a drive slider drivenly connected to the second linear drive member and a transmission slider drivenly connected to the bending member, the drive slider and the transmission slider being in a transmission engagement.

[0018] The second linear drive is used to drive the drive slider to move along the second direction, so that the transmission slider can move along the height direction of the bending die, wherein the second direction is intersected with the height direction of the bending die.

[0019] In one embodiment, when the bending member bends the workpiece to be bent, the bending member is used to apply force to the transmission slider in a second direction to restrict the movement of the transmission slider in the height direction of the bending die.

[0020] In one embodiment, the bending member and the transmission slider are slidably connected along a fourth direction, which is located between the second direction and the height direction of the bending die. When the bending member applies a force to the transmission slider along the second direction, the sliding force of the transmission slider along the fourth direction is less than the contact friction force between the transmission slider and the bending member.

[0021] In one embodiment, the adjusting mechanism further includes a second elastic reset member, which is connected to the second reversing member and is used to limit the movement of the second reversing member in the height direction of the bending die.

[0022] In one embodiment, the adjustment mechanism further includes an indicator component, which includes a pointer disposed on the spacing adjustment component and an indicator disposed on the lower mold. The indicator has an indicator scale, and the pointer cooperates with the indicator scale. When the adjustment drive component drives the spacing adjustment component to move, the pointer is used to change its pointing reading on the indicator scale.

[0023] The present invention also proposes a bending device, including the bending die as described above.

[0024] The technical solution of this invention provides an adjustment mechanism consisting of an adjustment drive component and a spacing adjustment component. The spacing adjustment component is connected to the bending component via transmission, and the adjustment drive component drives the spacing adjustment component, allowing the bending component to adjust the spacing with the mounting base. During subsequent bending operations on the workpiece, the deformation compensation gap of the workpiece can be adjusted. Therefore, when bending parts of different materials using the same set of bending dies, the bending deformation gap of different materials can be accurately matched, resulting in good consistency in the degree of bending deformation of different parts after bending. Furthermore, when assembling the different bent parts into a single structure, the overall consistency of the assembled component can be guaranteed. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the bending die provided by the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure of a bending die at one angle;

[0028] Figure 3 for Figure 2 A magnified view of a portion at point A;

[0029] Figure 4 for Figure 2 A magnified view of the area at point B;

[0030] Figure 5 for Figure 2 A magnified view of the area at point C;

[0031] Figure 6 for Figure 2 A schematic diagram of the structure of the first sub-slider;

[0032] Figure 7 This is a schematic diagram of another embodiment of the bending die provided by the present invention.

[0033] Figure 8 for Figure 7 A magnified view of the area at point D;

[0034] Figure 9 for Figure 7 A magnified view of the area at point E;

[0035] Figure 10 for Figure 7 A schematic diagram of the structure of the second linear drive component;

[0036] Figure 11 for Figure 7 Side view of the bending die;

[0037] Figure 12 for Figure 11 Sectional view at AA.

[0038] Explanation of icon numbers:

[0039] 100. Bending die; 10. Lower die; 20. Bending structure; 21. Mounting base; 22. Bending part; 30. Adjustment mechanism; 31. Spacing adjustment assembly; 311. First slider; 3111. First sub-slider; 3111a. Dovetail slide bar; 3112. Connecting rod; 3113. Sub-adjustment assembly; 312. Second slider; 3121. Second sub-slider; 313. First reversing component; 3131. First reversing part; 3132. Second reversing part; 314. Second reversing component; 3141. Drive slider; 3142. Transmission slider; 32. Adjustment drive assembly; 321. First linear drive component; 3 211. First screw; 3212. First base; 3213. First knob; 3214. First locking element; 322. Second linear drive element; 3221. Second base; 3222. Second locking element; 3223. Second screw; 3224. Second knob; 33. First elastic reset element; 34. Second elastic reset element; 35. First indicating assembly; 351. First indicating element; 3511. First indicating scale; 352. First pointer; 36. Second indicating assembly; 361. Second indicating element; 3611. Second indicating scale; 362. Second pointer; 40. Upper die; 41. Upper bending element.

[0040] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0044] When bending parts, different materials are bent. Since the bending springback rate of the parts is different, different sizes of bending springback gaps need to be reserved for parts of different materials. This requires the use of multiple sets of dies with different bending gaps, which is time-consuming, labor-intensive and costly.

[0045] Alternatively, the same bending die can be used to bend parts of different materials. The bending gap can be adjusted by disassembling and assembling the bending parts inside the die or by installing shims. However, performing the above operations requires technicians with rich experience and skills, and is still very time-consuming and labor-intensive, and can easily damage the die.

[0046] This invention proposes a bending die 100.

[0047] Please see Figures 1 to 12 In one embodiment of the present invention, the bending die 100 includes a lower die 10, a bending structure 20, and an adjustment mechanism 30. The bending structure 20 is disposed on the lower die 10 and includes a mounting base 21 and a bending member 22 disposed around the mounting base 21. The mounting base 21 is used to mount the workpiece to be bent, and the bending member 22 is used to move toward the mounting base 21 to bend the workpiece to be bent. The adjustment mechanism 30 is disposed on the lower die 10 and includes a spacing adjustment component 31 that is drively connected to the bending member 22, and an adjustment drive component 32 that is drively connected to the spacing adjustment component 31. The adjustment drive component 32 is used to drive the spacing adjustment component 31 to move so as to adjust the spacing between the bending member 22 and the mounting base 21.

[0048] In this invention, the bending component 22 can be a single component located on one side of the mounting base 21, or multiple bending components 22 can be arranged around the outer periphery of the mounting base 21. This invention also includes an upper die 40, which is used to close the mold with the lower die 10. When the upper die 40 and the lower die 10 are closed, the upper die 40 is used to push the bending component 22 toward the mounting base 21 to perform bending operations on the workpiece to be bent on the mounting base 21. In this process, the upper die 40 and the lower die 10 are closed. Before bending the workpiece, the original distance between the bent part 22 and the mounting base 21 can be adjusted by the distance adjustment component 31. When using the bending die 100 to bend different materials, the springback angle of the materials will differ due to the differences in the physical properties of the materials. Therefore, the distance between the bent part 22 and the mounting base 21 is adjusted by the adjustment mechanism 30 to reserve corresponding bending compensation gaps for different materials, so that parts of different materials have good consistency after processing when they are bent by the same die.

[0049] The technical solution of the present invention provides an adjustment mechanism 30 consisting of an adjustment drive component 32 and a spacing adjustment component 31. The spacing adjustment component 31 is connected to the bending component 22, and the adjustment drive component 32 drives the spacing adjustment component 31, allowing the bending component 22 to adjust the spacing with the mounting base 21. When bending the workpiece to be bent using the bending component 22, the deformation compensation gap of the workpiece to be bent can be adjusted. Thus, when bending parts of different materials using the same set of bending dies 100, the bending deformation gap of different materials can be accurately matched, so that the bending deformation degree of different materials has good consistency after bending. When different bent parts are assembled into a whole structure, the overall consistency of the assembled parts can be guaranteed.

[0050] See Figure 2 , Figure 3 , Figure 4 As shown, in an embodiment of the present invention, the spacing adjustment component 31 includes a first slider 311 and a second slider 312. The second slider 312 is tractively connected to the bending member 22. The first slider 311 and the second slider 312 are tractively coupled. The adjustment drive component 32 is used to drive the first slider 311 to move along a first direction so that the second slider 312 can move along a second direction to drive the bending member 22 closer to or away from the mounting base 21. The first direction and the second direction are intersected.

[0051] The spacing adjustment component 31 includes a first slider 311 and a second slider 312. The second slider 312 is connected to the bending member 22. The first slider 311 and the second slider 312 are obliquely slidably engaged. The adjustment drive component 32 is used to drive the first slider 311 to move along a first direction so that the second slider 312 slides obliquely relative to the first slider 311, forming a displacement along a second direction. The first direction and the second direction are intersected, and the sliding direction of the second slider 312 is between the first direction and the second direction.

[0052] In the above embodiments, the transmission cooperation between the first slider 311 and the second slider 312 can be an oblique sliding cooperation between the first slider 311 and the second slider 312. The sliding displacement of the second slider 312 on the first slider 311 can be decomposed into a sliding displacement along a first direction and a sliding displacement along a second direction. When the adjusting drive assembly 32 drives the first slider 311 to slide along the first direction, it drives the second slider 312 to slide obliquely on the first slider 311. The overall movement path of the second slider 312 can be decomposed into a translational movement along the first direction and a translational movement along the second direction. Since the second slider 312 is connected to the bending member 22, the displacement of the second slider 312 along the second direction can drive the bending member 22 to move in the second direction, thereby adjusting the distance between the bending member 22 and the mounting base 21.

[0053] In this embodiment, the displacement of the second slider 312 along the first direction cancels out the position of the first slider 311 along the first direction, so that when the first slider 311 drives the second slider 312 to move, the second slider 312 ultimately moves in the second direction to adjust the distance between the bending member 22 and the mounting base 21.

[0054] In an embodiment of the present invention, when the bending member 22 bends the workpiece to be bent, the second slider 312 is used to transmit the force applied to it by the bending member 22 in the second direction to the first slider, so as to restrict the movement of the first slider 311 in the first direction.

[0055] This configuration enables the first slider 311 to self-lock, preventing the force exerted by the bending part 22 on the second slider 312 during bending of the workpiece from being transmitted to the first slider 311, which would cause the first slider 311 to slide along the first direction, resulting in the first slider 311 exerting a reaction force on the adjustment drive assembly 32 and causing damage to the adjustment drive assembly 32.

[0056] In the above embodiments, a self-locking clamp can be provided at the connection between the first slider 311 and the second slider 312. After the distance between the bent part 22 and the mounting base 21 is adjusted by the adjusting mechanism 30, the self-locking clamp can be used to achieve self-locking between the first slider 311 and the second slider 312. Alternatively, by setting the oblique sliding engagement angle between the second slider 312 and the first slider 311 to be smaller than the self-locking angle of the first slider 311, the first slider 311 can be prevented from sliding along the second slider 312 when it is subjected to a force in the second direction, thereby achieving self-locking of the first slider 311. The working method of self-locking between the first slider 311 and the second slider 312 through friction is described in detail below.

[0057] In an embodiment of the present invention, the first slider 311 and the second slider 312 are slidably connected along a third direction, which is located between the first direction and the second direction. When the second slider 312 applies a force to the first slider 311 along the second direction, the sliding force of the first slider 311 along the third direction is less than the contact friction force between the first slider 311 and the second slider 312.

[0058] In the above embodiment, the oblique sliding engagement angle between the second slider 312 and the first slider 311 is less than the self-locking angle of the second slider 312. In this invention, when the workpiece to be bent is bent, the bending member 22 is subjected to a thrust moving towards the workpiece to be bent. The bending member 22 transmits the thrust to the second slider 312. Since the second slider 312 and the first slider 311 are obliquely slidingly connected, when the second slider 312 transmits the thrust along the second direction to the first slider 311, the thrust is decomposed along the contact slope of the first slider 311 and the second slider 312 into a sliding force along the contact slope and a pressure force perpendicular to the contact slope. The pressure force can cause the first slider 312 to slide. Friction is generated between the first slider 311 and the second slider 312. When the friction between the first slider 311 and the second slider 312 is greater than the sliding force along the contact slope, the first slider 311 and the second slider 312 self-lock. The first slider 311 cannot transmit the force from the bent part 22 to the adjustment drive assembly 32. Thus, during the die stamping process, most of the force on the bent part 22 can be borne by the first slider 311 and the second slider 312, and will not cause a large impact force on the adjustment drive assembly 32.

[0059] See Figure 6As shown, in this invention, the first direction and the second direction can be arranged at a 90-degree angle, and the third direction can be arranged at an acute angle to the first direction and the second direction respectively. A dovetail sliding strip 3111a can be provided on the side of the first slider 311 facing the second slider 312, and a dovetail sliding groove that cooperates with the dovetail sliding strip 3111a can be provided on the second slider 312 to realize the limiting of sliding cooperation between the first slider 311 and the second slider 312.

[0060] See Figure 2 , Figure 3 , Figure 4 As shown, in an embodiment of the present invention, the adjustment drive assembly 32 includes a first linear drive member 321, and the spacing adjustment assembly 31 further includes a first commutator 313. The first commutator 313 is connected to the first linear drive member 321 and the first slider 311 respectively. The first linear drive member 321 is used to drive the first commutator 313 to move, so as to drive the first slider 311 to move along a first direction.

[0061] The first reversing member 313 includes a first reversing part 3131 extending along a second direction and a second reversing part 3132 extending along a first direction. The first reversing part 3131 is drivenly connected to the first linear drive member 321, and the second reversing part 3132 is drivenly connected to the first slider 311. The first reversing part 3131 and the second reversing part 3132 are obliquely slidingly engaged. The first linear drive member 321 is used to drive the first reversing part 3131 to move along the second direction, so that the second reversing part 3132 drives the first slider 311 to move along the first direction.

[0062] In the above embodiments, the first reversing part 3131 and the second reversing part 3132 can be in a 45-degree oblique sliding fit. The first linear drive 321 may include a first screw 3211, a first base 3212, and a first knob 3213. The first base 3212 is disposed on the lower mold 10. The first screw 3211 passes through the first base 3212 and is threadedly connected to the first base 3212. One end of the first screw 3211 is rotatably connected to the first reversing part 3131. The other end of the first screw 3211 is provided with the first knob 3213. When the first knob 3213 is turned, the first screw 3211 rotates and moves on the first base 3212, driving the first reversing part 3131 to move along the first direction. Since the first reversing part 3131 and the second reversing part 3132 are obliquely slidingly engaged, the second reversing part 3132 is driven to move along the second direction, causing the first slider 311 connected to the second reversing part 3132 to move along the second direction.

[0063] In addition, the first linear drive 321 may also include a first locking member 3214, which may be a locking nut. The locking nut is threaded onto the first screw 3211 and located on the side of the first base 3212 away from the first reversing member 313. When the locking nut locks the first linear drive 321, the locking nut abuts against the first base 3212.

[0064] See Figure 2 , Figure 5 As shown, in an embodiment of the present invention, the first slider 311 includes a plurality of first sub-sliders 3111 spaced apart along a first direction, and any two adjacent first sub-sliders 3111 are connected by a connecting rod 3112. The second slider 312 includes a plurality of second sub-sliders 3121 that slide in a one-to-one manner with the plurality of first sliders 311.

[0065] This configuration allows the first slider 311 to be smaller than usual, as it can be divided into multiple first sub-sliders 3111, connected in series by connecting rods 3112. This allows the first slider 311 to have sufficient coverage length, extending from one end of the bent piece 22 to the other. Correspondingly, the second slider 312 can be equipped with multiple second sub-sliders 3121. With these sub-sliders 3121 spaced apart along the length of the bent piece 22, the consistency of the gap adjustment between the two is ensured when the bent piece 22 is moved towards the mounting base 21 by the second sub-sliders 3121, resulting in more precise adjustment of the bending gap compensation.

[0066] Continue reading Figure 2 , Figure 5 In an embodiment of the present invention, the first slider 311 further includes a sub-adjustment component 3113, which is used to connect the first sub-slider 3111 and the connecting rod 3112, and to adjust the distance between the connecting rod 3112 and the first sub-slider 3111, so as to adjust the position of the first sub-slider 3111 in a first direction.

[0067] In the above embodiment, the sub-adjustment component 3113 can be an adjusting screw. One end of the adjusting screw passes through the connecting rod 3112 and is screwed onto the first sub-slider 3111. The nut at the other end of the adjusting screw is limited by the connecting rod 3112 and is rotatably connected to the connecting rod 3112. When the adjusting screw is turned, the distance between the end of the adjusting screw rotatably connected to the connecting rod 3112 and the first sub-slider 3111 changes. This allows the first sub-slider 3111 to move relative to the connecting rod 3112 in the first direction, causing the corresponding second sub-slider 3121 to move in the second direction, thereby causing the bending part 22 located corresponding to the second sub-slider 3121 to move, thus realizing the local adjustment of the bending compensation gap.

[0068] Of course, in other embodiments, the sub-adjustment component 3113 can also be configured with other structures, such as an electric telescopic rod structure, a linear motor structure, etc., which are not limited here.

[0069] See Figure 2 , Figure 5 As shown, in an embodiment of the present invention, the adjustment mechanism 30 further includes a first elastic reset member 33, which is connected to the first slider 311. The first elastic reset member 33 is used to drive the first slider 311 to reset when the force exerted by the adjustment drive assembly 32 on the first slider 311 is removed.

[0070] In the above embodiment, the first elastic reset member 33 can be disposed at the end of the first slider 311 away from the first reversing member 313. The first elastic reset member 33 can be configured as a spring, with one end of the spring fixed to the base located on the lower mold 10 and the other end of the spring fixed to the end of the first slider 311 away from the first reversing member 313. Thus, when the first slider 311 is driven by the adjustment drive assembly 32 and moves in the first direction, the other end of the first slider 311 can be pulled by the spring, so that the first slider 311 located between the adjustment drive assembly 32 and the first elastic reset member 33 is in a taut state and thus limited, thereby so that the second slider 312, which slides with the first slider 311, is in an accurate limited state.

[0071] In addition, when the reverse adjustment drive assembly 32 resets the first slider 311, the first elastic reset member 33 can apply force to the first slider 311 when the force exerted by the adjustment drive assembly 32 on the first slider 311 is removed, which facilitates the reset of the first slider 311 and reduces the force exerted by the adjustment drive assembly 32 on the first slider 311.

[0072] See Figure 7 , Figure 9 As shown, in this invention, the spacing adjustment component 31 includes a second reversing member 314, which is in transmission cooperation with the bending member 22. The adjustment drive component 32 is used to drive the second reversing member 314 to move along the height direction of the bending die 100, so that the bending member 22 can move along a second direction to approach or move away from the mounting base, wherein the second direction is intersected with the height direction of the bending die 100.

[0073] The spacing adjustment component 31 includes a second reversing member 314, which is obliquely slidably connected to the bending member 22. The adjustment drive component 32 is used to drive the second reversing member 314 to move along the height direction of the bending die 100, so that the bending member 22 can slide obliquely along the second reversing member 314 to form a displacement along the second direction. The sliding direction of the bending member 22 is between the second direction and the height direction of the bending die 100.

[0074] In the above embodiment, the second reversing member 314 and the bending member 22 are driven together to convert the displacement of the second reversing member 314 along the height direction of the bending die 100 into the displacement of the bending member 22 along the second direction. This can be achieved by the oblique sliding connection between the second reversing member 314 and the bending member 22, with the relative sliding direction between the second reversing member 314 and the bending member 22 inclined at a certain angle to the height direction of the bending die 100. Thus, when the adjusting drive assembly 32 drives the second reversing member 314 to move along the height direction, it can drive the bending member 22 to slide obliquely on the second reversing member 314. The movement direction of the second reversing member 314 can be decomposed into linear movement along the height direction and linear movement along the second direction. The movement of the bending member 22 along the height direction cancels out the movement of the second reversing member 314 along the height direction, and finally the bending member 22 moves linearly along the second direction, thereby changing the gap between the bending member 22 and the mounting base 21, and realizing the adjustment of the bending compensation gap.

[0075] Continue reading Figure 7 , Figure 9 As shown, the adjustment drive assembly 32 includes a second linear drive member 322, and the second reversing member 314 includes a drive slider 3141 that is drivenly connected to the second linear drive member 322 and a transmission slider 3142 that is drivenly connected to the bending member 22. The drive slider 3141 and the transmission slider 3142 are in a transmission cooperation.

[0076] The second linear drive 322 is used to drive the drive slider 3141 to move along the second direction, so that the transmission slider 3142 can move along the height direction of the bending die 100, wherein the second direction is intersected with the height direction of the bending die 100.

[0077] The sliding direction of the transmission slider 3142 is between the second direction and the height direction of the bending die 100.

[0078] In the above embodiment, the movement of the drive slider 3141 along the second direction can be converted into the movement of the transmission slider 3142 along the height direction of the bending die 100. This can be achieved by the oblique sliding connection between the drive slider 3141 and the transmission slider 3142, wherein the direction of the oblique sliding connection between the drive slider 3141 and the transmission slider 3142 is between the second direction and the height direction of the bending die 100. The angle of the oblique connection between the drive slider 3141 and the transmission slider 3142 can be 45 degrees. Thus, when the drive slider 3141 moves along the second direction, due to the oblique sliding engagement between the transmission slider 3142 and the drive slider 3141, the displacement of the transmission slider 3142 along the oblique sliding of the drive slider 3141 is converted into a displacement along the second direction and a displacement along the height direction of the bending die 100. The displacement of the transmission slider 3142 along the second direction and the displacement of the drive slider 3141 along the second direction cancel each other out, ultimately causing the transmission slider 3142 to move along the fourth direction.

[0079] The second linear drive component 322 may include a second screw 3223, a second base 3221, and a second knob 3224. The second base 3221 is fixed relative to the lower mold 10. The second screw 3223 passes through the second base 3221 and is threadedly connected to the second base 3221. One end of the second screw 3223 is rotatably connected to the drive slider 3141, and the other end of the second screw 3223 is provided with the second knob 3224. When the second knob 3224 is turned, the second screw 3223 rotates and moves on the second base 3221, causing the drive slider 3141 to move along the second direction. Since the drive slider 3141 and the transmission slider 3142 are obliquely sliding, the transmission slider 3142 is driven to move along the height direction of the bending mold 100, so that the bending component 22 connected to the transmission slider 3142 moves along the second direction.

[0080] In addition, the second linear drive 322 may also include a second locking member 3222, which may be a locking nut. The locking nut is threadedly installed on the second screw 3223 and located on the side of the second base 3221 away from the second reversing member 314. When the locking nut locks the second linear drive 322, the locking nut abuts against the second base 3221.

[0081] When the bending member 22 bends the workpiece to be bent, the bending member 22 is used to apply force to the transmission slider 3142 in the second direction to restrict the movement of the transmission slider 3142 in the height direction of the bending die 100.

[0082] In the above embodiments, a self-locking clamp can be provided at the connection between the transmission slider 3142 and the bending member 22. After the distance between the bending member 22 and the mounting base 21 is adjusted by the adjusting mechanism 30, the self-locking clamp can be used to achieve self-locking between the transmission slider 3142 and the bending member 22. Alternatively, by setting the oblique sliding engagement angle between the transmission slider 3142 and the bending member 22 to be smaller than the self-locking angle of the transmission slider 3142, when the transmission slider 3142 is subjected to a force in the second direction, it can be prevented from sliding along the bending member 22 and displacing along the height direction of the bending die 100, thus achieving self-locking of the transmission slider 3142. The working method of self-locking between the transmission slider 3142 and the bending member 22 through friction is described in detail below.

[0083] Optionally, the bending member 22 and the transmission slider 3142 are slidably connected along a fourth direction, which is located between the second direction and the height direction of the bending die 100. When the bending member applies a force to the transmission slider 3142 along the second direction, the sliding force of the transmission slider along the fourth direction is less than the contact friction force between the transmission slider and the bending member.

[0084] In the above embodiment, the oblique sliding engagement angle between the bending member 22 and the transmission slider 3142 is less than the self-locking angle of the transmission slider 3142. In this invention, when the workpiece to be bent is bent, the bending member 22 is subjected to a pushing force from the upper bending member 41. The bending member 22 transmits the pushing force to the transmission slider 3142. Since the transmission slider 3142 and the bending member 22 are obliquely slidingly connected, when the bending member 22 transmits the pushing force along the second direction to the transmission slider 3142, the pushing force is decomposed along the contact slope between the transmission slider 3142 and the bending member 22 into a sliding force along the contact slope and a pressure force perpendicular to the contact slope. The pressure force can cause the transmission slider 3142 and the bending member 22 to slide together. Friction is generated between the bent parts 22. When the friction between the transmission slider 3142 and the bent parts 22 is greater than the sliding force along the contact slope, the transmission slider 3142 and the bent parts 22 self-lock. The transmission slider 3142 cannot transmit the force from the bent parts 22 to the drive slider 3141, and thus will not transmit it to the adjustment drive assembly 32. Therefore, during the die stamping process, most of the force on the bent parts 22 can be borne by the transmission slider 3142 and the bent parts 22, and will not cause a large impact force on the adjustment drive assembly 32.

[0085] See Figure 9 As shown, in an embodiment of the present invention, the adjusting mechanism 30 further includes a second elastic reset member 34, which is connected to the second reversing member 314 and is used to limit the movement of the second reversing member 314 in the height direction of the bending die 100.

[0086] In the above embodiment, the second elastic reset member 34 can be disposed at the lower end of the transmission slider 3142. The second elastic reset member 34 can be configured as a spring, with one end of the spring fixed to the base located on the lower die 10 and the other end of the spring fixed to the lower end of the transmission slider 3142. Thus, when the transmission slider 3142 is driven by the adjustment drive assembly 32 and moves along the height direction of the bending die 100, the other end of the transmission slider 3142 can be pulled or pressed by the spring, so that the transmission slider 3142 is always in a taut state and thus limited, thereby ensuring that the bending part 22 that slides with the transmission slider 3142 is in an accurate limited state.

[0087] In addition, when the reverse adjustment drive assembly 32 resets the transmission slider 3142, the force applied to the transmission slider 3142 by the second elastic reset member 34 can facilitate the reset of the transmission slider 3142 and reduce the force applied to the transmission slider 3142 by the adjustment drive assembly 32.

[0088] In an embodiment of the present invention, the adjustment mechanism 30 further includes an indicator component, which includes a pointer disposed on the spacing adjustment component 31 and an indicator disposed on the lower mold 10. The indicator is provided with an indicator scale, and the pointer cooperates with the indicator scale. When the adjustment drive component 32 drives the spacing adjustment component 31 to move, the pointer is used to change its pointing reading on the indicator scale.

[0089] This allows for a direct reading of the current bending compensation gap by observing the pointer's position on the scale. When bending different materials using the same mold, the bending gap compensation mold structure is first designed based on the material with the largest springback. Then, the actual value of the pointer on the scale is adjusted according to the actual gap during later trial molding to form a process parameter table for different materials. When the mold needs to produce different materials, technicians can refer to the parameter table and adjust it to the corresponding indicator scale to complete the switch and start production.

[0090] See Figure 4 As shown, in one embodiment of the present invention, the indicating component includes a first indicating component 35. The first indicating component 35 includes a first pointer 352 disposed on the first commutator 313 and a first indicating element 351 disposed on the lower mold 10. The first indicating element 351 is provided with a first indicating scale 3511. The first pointer 352 cooperates with the first indicating scale 3511. When the first linear drive 321 drives the first commutator 313 to move, the first pointer 352 is used to change its pointing reading on the first indicating scale 3511.

[0091] In the above embodiment, when the first pointer 352 is set on the first reversing part 3131, since the first reversing part 3131 moves along the second direction, the first indicator scale 3511 located on the first indicator 351 extends along the second direction. When the first indicator 351 moves along the second direction, the first pointer 352 moves accordingly, causing its reading on the first indicator scale 3511 to change. Since the movement of the first reversing part 313 will correspondingly change the distance between the bent part 22 and the mounting base 21, the gap between the bent part 22 and the mounting base 21 can be obtained by reading the pointing value of the first pointer 352 on the first indicator scale 3511. Thus, the first pointer 352 can be adjusted to the corresponding first indicator scale 3511 according to the different bending compensation gaps of different material parts, so as to achieve precise adaptation to the bending compensation gaps of different material parts.

[0092] Of course, the first pointer 352 can also be set on the second reversing part 3132. In this way, the first indicator scale 3511 needs to be set on the first indicator 351 along the first direction, corresponding to the moving direction of the first pointer 352, and can also indicate the gap adjustment between the bending part 22 and the mounting base 21.

[0093] In addition, a first indicator component 35 can be configured to guide the first reversing member 313, thereby ensuring more precise displacement of the first reversing member 313 and accurate adjustment of the distance between the bent member 22 and the mounting base 21. The following is a detailed description of the guiding function of the first indicator component 35 for the first reversing member 313:

[0094] See Figure 3 , Figure 4 As shown, in the above embodiment, the first indicator 351 has a first guide groove and a second guide groove that are interconnected. The first guide groove is used to guide the first reversing part 3131 to move in a second direction, and the second guide groove is used to guide the second reversing part 3132 to move in a direction.

[0095] The first guide groove extends along the second direction, and the second guide groove extends along the first direction. The first guide groove and the second guide groove are not only interconnected, but also pass through the first indicator 351. Thus, when the first reversing part 3131 is guided by the first guide groove, and the second reversing part 3132 is guided by the second guide groove, the first reversing part 3131 and the second reversing part 3132 have sufficient displacement space, thereby ensuring that the first slider 311 has sufficient displacement space in the first direction and ensuring the distance adjustment range between the bending part 22 and the mounting base 21.

[0096] See Figure 8 , Figure 10As shown, in another embodiment of the present invention, the indicating component further includes a second indicating component 36. The second indicating component 36 includes a second pointer 362 disposed on the second commutator 314 and a second indicating component 361 disposed on the lower mold 10. The second indicating component 361 is provided with a second indicating scale 3611. The second pointer 362 cooperates with the second indicating scale 3611. When the second linear drive 322 drives the second commutator 314 to move, the second pointer 362 is used to change its pointing reading on the second indicating scale 3611.

[0097] In the above embodiment, when the second pointer 362 is set on the transmission slider 3142, since the transmission slider 3142 moves along the height direction of the bending die 100, the second indicator scale 3611 located on the second indicator 361 extends along the height direction of the bending die 100. When the second indicator 361 moves along the height direction of the bending die 100, the second pointer 362 moves accordingly, causing its reading on the second indicator scale 3611 to change. Since the movement of the second reversing member 314 will correspondingly change the distance between the bent part 22 and the mounting base 21, the gap between the bent part 22 and the mounting base 21 can be obtained by reading the pointing value of the second pointer 362 on the second indicator scale 3611. Thus, the second pointer 362 can be adjusted to the corresponding second indicator scale 3611 according to the different bending compensation gaps of different material parts, so as to achieve precise adaptation to the bending compensation gaps of different material parts.

[0098] Of course, the second pointer 362 can also be set on the drive slider 3141. In this way, the second indicator scale 3611 needs to be set on the second indicator 361 along the second direction, corresponding to the moving direction of the second pointer 362, and can also indicate the gap adjustment between the bending member 22 and the mounting base 21.

[0099] In the above embodiment, the second indicator 361 is fixed on the lower mold 10, and the second base 3221 can be fixed on the second indicator 361 to realize the installation of the second base 3221.

[0100] In addition, a second indicator 361 can be set to guide the second reversing member 314, ensuring more precise displacement of the second reversing member 314, thereby ensuring the accuracy of distance adjustment between the bent member 22 and the mounting base 21. The following is a detailed description of the guiding function of the second indicator 361 for the second reversing member 314:

[0101] See Figure 7 , Figure 8 , Figure 10As shown, the second indicator 361 has a third guide groove and a fourth guide groove that are interconnected. The third guide groove is used to guide the drive slider 3141 to move along the second direction, and the fourth guide groove is used to guide the transmission slider 3142 to move along the height direction of the bending die 100.

[0102] The third guide groove extends along the second direction, and the fourth guide groove extends along the height direction of the bending die 100. The third guide groove and the fourth guide groove are not only interconnected, but also pass through the second indicator 361. Thus, when the drive slider 3141 is guided by the third guide groove and the transmission slider 3142 is guided by the fourth guide groove, the drive slider 3141 and the transmission slider 3142 have sufficient displacement space, thereby ensuring that the bending part 22 has sufficient displacement space in the second direction and ensuring the distance adjustment range between the bending part 22 and the mounting base 21.

[0103] The present invention also proposes a bending device, which includes a bending die 100. The specific structure of the bending die 100 is as described in the above embodiments. Since the bending device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0104] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A bending die, characterized in that, include: Lower mold; A bending structure is provided on the lower die. The bending structure includes a mounting base and a bending member disposed around the mounting base. The mounting base is used to mount the workpiece to be bent, and the bending member is used to move toward the mounting base to bend the workpiece. An adjustment mechanism is provided on the lower die. The adjustment mechanism includes a spacing adjustment component that is connected to the bending member in a transmission manner, and an adjustment drive component that is connected to the spacing adjustment component in a driving manner. The adjustment drive component is used to drive the spacing adjustment component to move so as to adjust the spacing between the bending member and the mounting base. The spacing adjustment component includes a first slider and a second slider. The second slider is connected to the bending member. The first slider and the second slider are obliquely slidably engaged. The adjustment drive component is used to drive the first slider to move along a first direction so that the second slider can move along a second direction to move the bending member closer to or away from the mounting base. The first direction and the second direction are intersected. When the bending member bends the workpiece to be bent, the second slider is used to transmit the force applied to it by the bending member in the second direction to the first slider, so as to restrict the movement of the first slider in the first direction; The first slider and the second slider are slidably connected along a third direction, which is located between the first direction and the second direction. When the second slider applies a force to the first slider along the second direction, the sliding force of the first slider along the third direction is less than the contact friction force between the first slider and the second slider, so as to achieve self-locking of the first slider and the second slider through friction. The adjustment drive assembly includes a first linear drive member, and the spacing adjustment assembly further includes a first commutator member. The first commutator member is connected to the first linear drive member and the first slider respectively. The first linear drive member is used to drive the first commutator member to move, so as to drive the first slider to move along a first direction.

2. The bending die as described in claim 1, characterized in that, The first slider includes a plurality of first sub-sliders spaced apart along a first direction, and any two adjacent first sub-sliders are connected by a connecting rod. The second slider includes a plurality of second sub-sliders that slide in a one-to-one manner with the plurality of first sliders.

3. The bending die as described in claim 2, characterized in that, The first slider further includes a sub-adjustment assembly, which is used to connect the first sub-slider to the connecting rod and to adjust the distance between the connecting rod and the first sub-slider, so as to adjust the position of the first sub-slider in a first direction.

4. The bending die as described in claim 1, characterized in that, The adjustment mechanism further includes a first elastic reset member, which is connected to the first slider. The first elastic reset member is used to drive the first slider to reset when the force exerted on the first slider by the adjustment drive assembly is removed.

5. The bending die as described in any one of claims 1 to 4, characterized in that, The adjustment mechanism further includes an indicator component, which includes a pointer disposed on the spacing adjustment component and an indicator disposed on the lower mold. The indicator has an indicator scale, and the pointer cooperates with the indicator scale. When the adjustment drive component drives the spacing adjustment component to move, the pointer is used to change its pointing reading on the indicator scale.

6. A bending device, characterized in that, Includes the bending die as described in any one of claims 1 to 5.

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