Refrigerator bottom plate and bending equipment

Abstract

The invention discloses a refrigerator bottom plate and bending equipment, and relates to the technical field of bending equipment. The refrigerator bottom plate bending device comprises a mounting base, a bending mechanism used for bending a refrigerator bottom plate is arranged on the mounting base, the bending mechanism comprises a mounting assembly, and the mounting assembly comprises a bending mold which is arranged at the upper end of the mounting base and connected through a positioning assembly. A supporting plate connected with a rotating shaft pushes an adjusting plate to rotate around the supporting shaft, so that the angle of the adjusting plate at the bottom of a bending groove is adjusted; after adjustment is in place, bolts in connecting blocks are tightened, conical blocks are clamped into conical grooves in the outer walls of annular blocks, the positions of screws are fixed, the angle of the adjusting plate is prevented from being changed, the angle of the adjusting plate can be flexibly adjusted through an adjusting assembly so as to meet different bending requirements, and the machining adaptability of equipment to refrigerator bottom plates of various specifications is improved; then the combination of a hand wheel rod, a screw rod and a sliding block realizes accurate angle adjustment, and a locking structure of a conical groove and a conical block is matched, so that the stability after adjustment is ensured, and the bending angle accuracy is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of bending equipment, in particular to a refrigerator bottom plate and a bending equipment. Background Art

[0002] With the booming home appliance industry, refrigerators, a common household appliance, continue to experience growing market demand. As a crucial component of a refrigerator, the quality and machining accuracy of the refrigerator floor directly impact its overall performance and appearance. Bending the floor is a critical step in refrigerator production, requiring it to meet specific shape and angle requirements to ensure proper assembly and operation.

[0003] In the prior art, it is necessary to disassemble the mold that has been used for a long time for maintenance and replacement. However, the fixing method requires the operator to use tools to tighten or loosen the bolts one by one. The operation process is cumbersome and time-consuming. At the same time, traditional bending equipment has poor adaptability to refrigerator bottom plates of different specifications. Refrigerators are of various models, and their bottom plate sizes, bending angles and other requirements are different. It is necessary to frequently disassemble the mold, which is not convenient for adaptive adjustment of the bending groove inside the mold, and the stability after adjustment cannot be guaranteed. In addition, when the bending block contacts the bottom plate, due to the lack of a buffer device, a rigid collision will occur, which will not only cause impact and damage to the equipment, but may also cause scratches or deformation on the surface of the bottom plate, and metal materials often rebound due to the existence of internal stress after bending. For this reason, the present invention provides a refrigerator bottom plate and bending equipment. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a refrigerator bottom plate and bending equipment, which solves the problem that the unified bending equipment has poor adaptability to refrigerator bottom plates of different specifications. Refrigerators are of various models, and their bottom plate sizes, bending angles, etc. have different requirements. Frequent disassembly of the mold is required, which is inconvenient to adaptively adjust the bending groove inside the mold, and the stability after adjustment cannot be guaranteed. In addition, when the bending block contacts the bottom plate, a rigid collision will occur due to the lack of a buffer device, which will not only cause impact and damage to the equipment, but may also cause scratches or deformation on the surface of the bottom plate, and the metal material will often rebound due to the existence of internal stress after bending processing.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A bending device includes a mounting base, on which a bending mechanism for bending a refrigerator bottom plate is provided, the bending mechanism including:

[0006] The mounting assembly includes a bending die connected by a positioning assembly provided at the upper end of the mounting base, locking blocks provided at the four ends of the bending die, locking grooves provided inside the locking blocks, opening and closing blocks connected by an opening and closing assembly provided on both sides of the mounting base, and locking rods provided on the inner walls of the opening and closing blocks that engage with the locking grooves;

[0007] An adjustment assembly includes a bending groove provided inside the bending die, a support shaft provided at the bottom of the bending groove, and an adjustment plate connected via a push assembly provided on the outer wall of the support shaft;

[0008] The processing assembly includes a U-shaped bracket fixed to the side wall of the mounting base, a mounting plate connected by a lifting assembly is provided inside the U-shaped bracket, a bending block connected by an elastic assembly is provided on the lower end surface of the mounting plate, a second cavity groove is provided inside the bending block, and a pushing block connected by a pushing assembly is provided inside the second cavity groove.

[0009] Preferably, the positioning assembly includes a mounting groove opened on the upper end surface of the mounting base, a mounting block is provided inside the mounting groove, a positioning groove is opened inside the mounting block, a positioning block corresponding to the positioning groove is provided inside the mounting groove, and the bending mold is fixedly connected to the upper end of the mounting block.

[0010] Preferably, the opening and closing assembly includes a sliding rail bracket fixed on both sides of the surface of the mounting base, the sliding rail bracket is rotatably connected to a bidirectional screw rod inside, the opening and closing block is located on the inner wall of the sliding rail bracket and is slidably connected, the opening and closing blocks are arranged in two groups, the opening and closing blocks are threadedly connected to the bidirectional screw rod, the four ends of the mounting base are fixed with L-shaped plates, and the locking block is located inside the L-shaped plate.

[0011] Preferably, mounting brackets with an L-shaped structure are fixed on both sides of the upper end of the bending mold, an electric push rod is fixed through the horizontal direction of the mounting bracket, and a limiting splint is fixed on the telescopic end of the electric push rod. The limiting splint is provided in two groups, which are respectively located on both sides of the bending mold.

[0012] Preferably, the pushing assembly includes a first cavity groove opened inside the bending mold, a sliding rod is fixed on the inner wall of the first cavity groove, a slider is slidably connected to the outer wall of the sliding rod, a supporting slide rail is fixed at the center of the inner wall of the first cavity groove, a screw is rotatably connected to the inside of the supporting slide rail, the slider is slidably connected to the supporting slide rail, and the slider is threadedly connected to the screw, the adjusting plate is rotatably connected to the outer wall of the support shaft, and a supporting plate rotatably connected to the upper end of the slider is provided, and the other end of the support plate is rotatably connected to the adjusting plate through the rotating shaft.

[0013] Preferably, a handwheel rod is fixed at one end of the screw, and an annular block is fixed at one end of the handwheel rod extending to the outside of the bending mold, and conical grooves are evenly provided on the outer wall of the annular block. A connecting block is fixed on the outer wall of the bending mold above the annular block, and a bolt is provided inside the connecting block, and a conical block is provided at the lower end of the bolt that engages with the conical groove.

[0014] Preferably, the lifting assembly includes a first hydraulic rod fixed through the upper end of the U-shaped bracket, the mounting plate is fixedly connected to the telescopic end of the first hydraulic rod, the elastic assembly includes a shock-absorbing spring evenly fixed on the lower end surface of the mounting plate, the bending block is fixedly connected to the lower end of the shock-absorbing spring, the inner ring of the shock-absorbing spring is provided with a damping support rod, and the upper end of the damping support rod is fixedly connected to the mounting plate, the four ends of the upper end surface of the bending block are fixed with positioning rods, and the positioning rods are slidably connected to the mounting plate, the pushing assembly includes a vertical plate fixed in the vertical direction inside the second cavity groove, second hydraulic rods are fixed on both sides of the vertical plate, and the pushing block is fixedly connected to the telescopic end of the second hydraulic rod.

[0015] The present invention also discloses a refrigerator bottom plate, wherein a bottom plate body is placed on the upper end surface of the bending mold, an annular groove is opened on the upper end surface of the bottom plate body, a heat dissipation fin is fixed on the inner wall of the annular groove, and through holes are evenly opened on one side of the annular groove on the bottom plate body.

[0016] Beneficial effects

[0017] The present invention provides a refrigerator bottom plate and bending device. Compared with the prior art, it has the following advantages:

[0018] First, the bidirectional screw in the rotating slide rail bracket of the present invention rotates. Since the opening and closing block is threadedly connected to the bidirectional screw and slides on the inner wall of the slide rail bracket, the two groups of opening and closing blocks move toward each other synchronously, and the locking rod on the inner wall of the opening and closing block is inserted into the locking groove of the locking block, and the bending mold is firmly fixed to the mounting base in conjunction with the L-shaped plate. Among them, the positioning component ensures the accurate installation position of the bending mold through the engagement of the positioning block with the positioning groove, providing a basic guarantee for the subsequent bending processing accuracy; the opening and closing component utilizes the bidirectional screw transmission and the engagement of the locking rod with the locking groove to achieve fast and firm mold installation and disassembly. Compared with the traditional bolt fixing method, it greatly shortens the mold change time and improves production efficiency. The design of the L-shaped plate and the locking block enhances the stability of the mold fixation and prevents the mold from shaking during processing and affecting the bending quality.

[0019] Secondly, the slider of the present invention pushes the adjustment plate to rotate around the support shaft through the support plate connected to the rotating shaft, thereby adjusting the angle of the adjustment plate at the bottom of the bending groove. After adjustment, tighten the bolts in the connecting block to make the conical block fit into the conical groove of the outer wall of the annular block, fix the position of the screw, and prevent the angle of the adjustment plate from changing. The adjustment component can flexibly adjust the angle of the adjustment plate to adapt to different bending requirements, thereby improving the equipment's adaptability to processing refrigerator bottom plates of various specifications. Then, the combination of the handwheel rod, the screw and the slider realizes precise angle adjustment, and cooperates with the locking structure of the conical groove and the conical block to ensure stability after adjustment and ensure the accuracy of the bending angle.

[0020] Thirdly, the present invention starts the first hydraulic rod to push the mounting plate down along the U-shaped bracket, and the mounting plate drives the bending block to move downward through the shock-absorbing spring and the damping support rod, and the positioning rod slides in the mounting plate to ensure that the bending block is stable during the descending process. When the bending block contacts the base plate body, the shock-absorbing spring and the damping support rod absorb the impact energy to avoid rigid collision. Then, after the base plate is bent, the rebound of the side wall is avoided. The second hydraulic rod is set to push the pushing block to extend out in the second cavity groove, exerting additional pressure on the base plate body, which can keep the base plate in a compressed state after bending, offset part of the internal stress, and effectively suppress the rebound of the side wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the slide rail bracket structure of the present invention;

[0023] Figure 3 Schematic diagram of the bending die structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the mounting slot structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the first cavity structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 A in the middle is an enlarged structural diagram;

[0027] Figure 7 It is a schematic diagram of the mounting plate structure of the present invention;

[0028] Figure 8 It is a schematic diagram of the bending block structure of the present invention.

[0029] In the figure: 1. Mounting base; 2. Bending die; 201. Mounting slot; 202. Positioning block; 203. Mounting block; 204. Positioning slot; 3. Locking block; 301. Locking slot; 302. Slide rail bracket; 303. Opening and closing block; 304. Locking rod; 305. L-shaped plate; 4. Mounting bracket; 401. Electric push rod; 402. Limiting splint; 5. Bending slot; 501. Support shaft; 502. Adjustment plate; 503. First cavity slot; 504. Slide rod; 505. Slider; 506. Support rail; 507. Screw; 508, support plate; 6, handwheel rod; 601, annular block; 602, conical groove; 603, connecting block; 604, bolt; 605, conical block; 7, U-shaped bracket; 701, first hydraulic rod; 702, mounting plate; 703, shock-absorbing spring; 704, damping support rod; 705, bending block; 706, positioning rod; 8, second cavity groove; 801, vertical plate; 802, second hydraulic rod; 803, pushing block; 9, bottom plate body; 901, annular groove; 902, heat dissipation fin; 903, through hole. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1-8 The present invention provides a technical solution: a bending device, comprising a mounting base 1, on which a bending mechanism for bending a refrigerator bottom plate is provided, the bending mechanism comprising:

[0032] The mounting assembly includes a mounting base 1 having a bending die 2 connected thereto via a positioning assembly at the top thereof, locking blocks 3 provided at the four ends of the bending die 2, locking grooves 301 being defined within the locking blocks 3, opening and closing blocks 303 connected thereto via an opening and closing assembly being provided on both sides of the mounting base 1, and locking rods 304 provided on the inner walls of the opening and closing blocks 303 that engage with the locking grooves 301;

[0033] The adjustment component includes a bending groove 5 formed inside the bending die 2, a support shaft 501 provided at the bottom of the bending groove 5, and an adjustment plate 502 connected to the outer wall of the support shaft 501 via a push assembly;

[0034] The processing assembly includes a U-shaped bracket 7 fixed to the side wall of the mounting base 1, and a mounting plate 702 connected by a lifting assembly is provided inside the U-shaped bracket 7. The lower end surface of the mounting plate 702 is provided with a bending block 705 connected by an elastic assembly. A second cavity groove 8 is provided inside the bending block 705, and a pushing block 803 connected by a pushing assembly is provided inside the second cavity groove 8.

[0035] In a preferred embodiment, the positioning component includes a mounting groove 201 provided on the upper end surface of the mounting base 1, a mounting block 203 is provided inside the mounting groove 201, a positioning groove 204 is provided inside the mounting block 203, a positioning block 202 corresponding to the positioning groove 204 is provided inside the mounting groove 201, the bending mold 2 is fixedly connected to the upper end of the mounting block 203, and the opening and closing component includes a slide rail bracket 302 fixed on both sides of the surface of the mounting base 1, a bidirectional screw rod is rotatably connected inside the slide rail bracket 302, the opening and closing block 303 is located on the inner wall of the slide rail bracket 302 and is slidably connected, the opening and closing block 303 is provided in two groups, and the opening and closing block 303 is threadedly connected to the bidirectional screw rod, and the mounting L-shaped plates 305 are fixed to the four ends of the mounting base 1, and the locking block 3 is located inside the L-shaped plate 305. The mounting block 203 at the bottom of the bending mold 2 is aligned with the mounting groove 201 on the mounting base 1, so that the positioning block 202 is inserted into the positioning groove 204 of the mounting block 203 to complete the preliminary positioning. Subsequently, the opening and closing assembly is started, and the bidirectional screw rod in the slide rail bracket 302 is rotated. Since the opening and closing block 303 is threadedly connected to the bidirectional screw rod and slides on the inner wall of the slide rail bracket 302, the two groups of opening and closing blocks 303 move toward each other synchronously, and the locking rod 304 on the inner wall of the opening and closing block 303 is inserted into the locking groove 301 of the locking block 3, and cooperates with the L-shaped plate 305 to firmly fix the bending mold 2 on the mounting base 1.

[0036] Among them, the positioning component ensures the accurate installation position of the bending mold 2 through the engagement of the positioning block 202 with the positioning groove 204, providing basic guarantee for the subsequent bending processing accuracy; the opening and closing component uses bidirectional screw transmission and the cooperation of the locking rod 304 and the locking groove 301 to achieve fast and firm mold installation and disassembly. Compared with the traditional bolt fixing method, it greatly shortens the mold change time and improves production efficiency. The design of the L-shaped plate 305 and the locking block 3 enhances the stability of the mold fixation and prevents the mold from shaking during processing to affect the bending quality.

[0037] In a preferred embodiment, an L-shaped mounting bracket 4 is fixed on both sides of the upper end of the bending mold 2, and an electric push rod 401 is fixed in the horizontal direction of the mounting bracket 4. The telescopic end of the electric push rod 401 is fixed with a limiting clamp 402. The limiting clamp 402 is set in two groups, which are respectively located on both sides of the bending mold 2. The electric push rod 401 is extended and retracted to drive the limiting clamp 402 to move, and the bottom plate of the refrigerator placed on the bending mold 2 can be limited and clamped to prevent the bottom plate from displacement during the bending process, thereby ensuring the accuracy of the bending process.

[0038] In a preferred embodiment, the pushing assembly includes a first cavity groove 503 opened inside the bending mold 2, and a sliding rod 504 is fixed to the inner wall of the first cavity groove 503, and a slider 505 is slidably connected to the outer wall of the sliding rod 504. A supporting slide rail 506 is fixed at the center of the inner wall of the first cavity groove 503, and a screw 507 is rotatably connected to the inner side of the supporting slide rail 506. The slider 505 is slidably connected to the supporting slide rail 506, and the slider 505 is threadedly connected to the screw 507. The adjusting plate 502 is rotatably connected to the outer wall of the support shaft 501, and the upper end of the slider 505 is provided with a supporting plate 508 rotatably connected by a rotating shaft. The other end of the support plate 508 is rotatably connected to the adjusting plate 502 by a rotating shaft. A handwheel rod 6 is fixed to one end of the screw 507, and the handwheel rod 6 extends to the outside of the bending mold 2 and is fixed with an annular block 601. The outer wall of the annular block 601 is uniformly A tapered groove 602 is provided, and a connecting block 603 is fixed on the outer wall of the bending mold 2 above the annular block 601. A bolt 604 is provided inside the connecting block 603, and a tapered block 605 is provided at the lower end of the bolt 604, which engages with the tapered groove 602. Turn the handwheel rod 6 to drive the screw 507 to rotate in the support slide rail 506. Since the slider 505 is threadedly connected to the screw 507 and slides on the slide rod 504 and the support slide rail 506, the slider 505 moves along the screw 507, and the support plate 508 connected to the slider 505 by the rotating shaft pushes the adjustment plate 502 to rotate around the support shaft 501, thereby adjusting the angle of the adjustment plate 502 at the bottom of the bending groove 5. After adjusting to the right position, tighten the bolt 604 in the connecting block 603 to make the tapered block 605 engage with the tapered groove 602 on the outer wall of the annular block 601, fix the position of the screw 507, and prevent the angle of the adjustment plate 502 from changing.

[0039] The adjustment component can flexibly adjust the angle of the adjustment plate 502 to adapt to different bending requirements, thereby improving the equipment's adaptability to processing refrigerator bottom plates of various specifications. The combination of the handwheel rod 6, the screw 507 and the slider 505 can achieve precise angle adjustment, and the locking structure of the conical groove 602 and the conical block 605 can ensure stability after adjustment and ensure the accuracy of the bending angle.

[0040] In a preferred embodiment, the lifting assembly includes a first hydraulic rod 701 fixedly passed through the upper end of the U-shaped bracket 7, a mounting plate 702 is fixedly connected to the telescopic end of the first hydraulic rod 701, an elastic assembly includes a shock-absorbing spring 703 evenly fixed on the lower end surface of the mounting plate 702, a bending block 705 is fixedly connected to the lower end of the shock-absorbing spring 703, a damping support rod 704 is provided on the inner ring of the shock-absorbing spring 703, and the upper end of the damping support rod 704 is fixedly connected to the mounting plate 702, a positioning rod 706 is fixed to the four ends of the upper end surface of the bending block 705, and the positioning rod 706 is slidably connected to the mounting plate 702, and the pushing assembly includes a first A vertical plate 801 is fixed in the vertical direction inside the second cavity groove 8, and a second hydraulic rod 802 is fixed on both sides of the vertical plate 801. The pushing block 803 is fixedly connected to the telescopic end of the second hydraulic rod 802. The first hydraulic rod 701 is started to push the mounting plate 702 down along the U-shaped bracket 7. The mounting plate 702 drives the bending block 705 to move downward through the shock-absorbing spring 703 and the damping support rod 704. The positioning rod 706 slides in the mounting plate 702 to ensure that the bending block 705 is stable during the descending process. When the bending block 705 contacts the bottom plate body 9, the shock-absorbing spring 703 and the damping support rod 704 absorb the impact energy to avoid rigid collision.

[0041] When the bottom plate is bent, in order to avoid the rebound of the side wall, the second hydraulic rod 802 is set to push the pushing block 803 out of the second cavity groove 8, applying additional pressure to the bottom plate body 9, which can keep the bottom plate in a compressed state after bending, offset part of the internal stress, and effectively suppress the rebound of the side wall.

[0042] The present invention also discloses a refrigerator bottom plate, wherein a bottom plate body 9 is placed on the upper end surface of a bending mold 2, an annular groove 901 is provided on the upper end surface of the bottom plate body 9, and a heat dissipation fin 902 is fixed to the inner wall of the annular groove 901, and through holes 903 are evenly provided on one side of the annular groove 901 on the bottom plate body 9. The arrangement of the annular groove 901 and the heat dissipation fin 902 can increase the heat dissipation area of ​​the refrigerator bottom plate, improve the heat dissipation efficiency, and ensure the stability of the internal temperature of the refrigerator. The arrangement of the through holes 903 can reduce the weight of the refrigerator bottom plate, and is also conducive to air circulation, further enhancing the heat dissipation effect.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] When using this bending equipment to process the bottom plate of a refrigerator, first align the mounting block 203 at the bottom of the bending die 2 with the mounting groove 201 on the mounting base 1, and use the positioning block 202 to engage with the positioning groove 204 to complete the initial positioning. Then start the opening and closing assembly, rotate the bidirectional screw rod in the slide rail bracket 302, so that the two sets of opening and closing blocks 303 move toward each other synchronously, and the locking rod 304 on the inner wall of the opening and closing block 303 is inserted into the locking groove 301 of the locking block 3, and cooperates with the L-shaped plate 305 to firmly fix the bending die 2 on the mounting base 1;

[0045] Then, the refrigerator bottom plate is placed on the bending mold 2, and the electric push rod 401 drives the limiting clamping plate 402 to move and limit the bottom plate; according to processing requirements, the handwheel rod 6 is turned to drive the screw 507 to rotate, so that the slider 505 moves along the screw 507, and the support plate 508 pushes the adjusting plate 502 to rotate around the support shaft 501 to adjust the angle of the adjusting plate 502 at the bottom of the bending groove 5. After adjusting it into place, the bolt 604 is tightened, and the tapered block 605 is engaged with the tapered groove 602 to fix it; the first hydraulic rod 701 is started to push the mounting plate 702 to descend along the U-shaped bracket 7, and the mounting plate 702 drives the bending block 705 to move downward through the shock-absorbing spring 703 and the damping support rod 704. The positioning rod 706 ensures its stable descent. When the bending block 705 contacts the bottom plate, the shock-absorbing spring 703 and the damping support rod 704 absorb the impact energy;

[0046] After the bending is completed, the second hydraulic rod 802 is started to push the push block 803 out of the second cavity groove 8, applying additional pressure to the bottom plate body 9 to suppress the side wall rebound, thereby completing the bending process of the entire refrigerator bottom plate.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bending device comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a bending mechanism for bending the bottom plate of the refrigerator, and the bending mechanism comprises: The mounting assembly comprises a mounting base (1) having a bending die (2) connected via a positioning assembly provided at the upper end thereof, locking blocks (3) provided at the four ends of the bending die (2), a locking groove (301) provided inside the locking block (3), opening and closing blocks (303) connected via an opening and closing assembly provided on both sides of the mounting base (1), and a locking rod (304) engaged with the locking groove (301) provided on the inner wall of the opening and closing block (303); An adjustment component comprises a bending groove (5) provided inside a bending die (2), a support shaft (501) provided at the bottom of the bending groove (5), and an adjustment plate (502) connected via a push assembly provided on the outer wall of the support shaft (501); A processing assembly comprises a U-shaped bracket (7) fixed to the side wall of a mounting base (1); a mounting plate (702) connected via a lifting assembly is provided inside the U-shaped bracket (7); a bending block (705) connected via an elastic assembly is provided on the lower end surface of the mounting plate (702); a second cavity groove (8) is provided inside the bending block (705); and a pushing block (803) connected via a pushing assembly is provided inside the second cavity groove (8).

2. The bending device according to claim 1, characterized in that: The positioning assembly comprises a mounting groove (201) provided on the upper end surface of the mounting base (1); a mounting block (203) is provided inside the mounting groove (201); a positioning groove (204) is provided inside the mounting block (203); a positioning block (202) corresponding to the positioning groove (204) is provided inside the mounting groove (201); and the bending die (2) is fixedly connected to the upper end of the mounting block (203).

3. The bending device according to claim 1, characterized in that: The opening and closing assembly comprises a slide rail bracket (302) fixed on both sides of the surface of the mounting base (1); a bidirectional screw rod is rotatably connected inside the slide rail bracket (302); the opening and closing block (303) is located on the inner wall of the slide rail bracket (302) and is slidably connected; the opening and closing block (303) is provided in two groups; the opening and closing block (303) is threadedly connected to the bidirectional screw rod; L-shaped plates (305) are fixed at the four ends of the mounting base (1); and the locking block (3) is located inside the L-shaped plate (305).

4. The bending device according to claim 1, characterized in that: Mounting brackets (4) with an L-shaped structure are fixed on both sides of the upper end of the bending mold (2); an electric push rod (401) is fixed through the horizontal direction of the mounting bracket (4); a limiting clamp (402) is fixed to the telescopic end of the electric push rod (401); the limiting clamp (402) is provided in two groups, and is respectively located on both sides of the bending mold (2).

5. The bending device according to claim 1, characterized in that: The pushing assembly includes a first cavity groove (503) opened inside the bending mold (2), a sliding rod (504) is fixed to the inner wall of the first cavity groove (503), and a slider (505) is slidably connected to the outer wall of the sliding rod (504), a supporting slide rail (506) is fixed at the center of the inner wall of the first cavity groove (503), and a screw rod (507) is rotatably connected inside the supporting slide rail (506), the slider (505) and the supporting slide rail (506) are slidably connected, and the slider (505) and the screw rod (507) are threadedly connected, the adjusting plate (502) is located on the outer wall of the support shaft (501) and is rotatably connected, and the upper end of the slider (505) is provided with a supporting plate (508) connected by a rotating shaft, and the other end of the supporting plate (508) is rotatably connected to the adjusting plate (502) by a rotating shaft.

6. The bending device according to claim 5, characterized in that: A handwheel rod (6) is fixed to one end of the screw rod (507), and an annular block (601) is fixed to one end of the handwheel rod (6) extending to the outside of the bending mold (2). The outer wall of the annular block (601) is evenly provided with conical grooves (602). A connecting block (603) is fixed to the outer wall of the bending mold (2) above the annular block (601). A bolt (604) is provided inside the connecting block (603), and a conical block (605) is provided at the lower end of the bolt (604) to engage with the conical groove (602).

7. The bending device according to claim 1, characterized in that: The lifting assembly includes a first hydraulic rod (701) fixedly passing through the upper end of the U-shaped bracket (7), the mounting plate (702) is fixedly connected to the telescopic end of the first hydraulic rod (701), the elastic assembly includes a shock-absorbing spring (703) evenly fixed on the lower end surface of the mounting plate (702), the bending block (705) is fixedly connected to the lower end of the shock-absorbing spring (703), the inner ring of the shock-absorbing spring (703) is provided with a damping support rod (704), and the damping support rod (704) is fixedly connected to the lower end surface of the mounting plate (702). 04) is fixedly connected to the mounting plate (702), the upper end of the bending block (705) is fixed with positioning rods (706) at the four ends of the upper end surface, and the positioning rods (706) and the mounting plate (702) are slidably connected, the pushing assembly includes a vertical plate (801) fixed in the vertical direction inside the second cavity groove (8), and the second hydraulic rod (802) is fixed on both sides of the vertical plate (801), and the pushing block (803) is located at the telescopic end of the second hydraulic rod (802) and fixedly connected.

8. A refrigerator bottom plate, using a bending device according to any one of claims 1 to 7, characterized in that: A base plate body (9) is placed on the upper end surface of the bending die (2), an annular groove (901) is provided on the upper end surface of the base plate body (9), a heat dissipation fin (902) is fixed to the inner wall of the annular groove (901), and through holes (903) are evenly provided on one side of the annular groove (901) on the base plate body (9).

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