Press machine for machining automobile parts

Abstract

The invention relates to the technical field of part machining equipment, and provides a press machine for automobile part machining. The upper die unit is vertically arranged on the device main body in a sliding manner; the lower die unit is arranged on one side of the device body and located below the upper die unit. A machining space is formed between the upper die unit and the lower die unit. Wherein the lower die unit comprises a lower die frame, and the lower die frame is located below the upper die unit; the multiple lower mold mounting frames are arranged on the lower mold frame in a circulating and moving mode, and the multiple lower mold mounting frames are used for mounting different lower molds; and the lower die mounting rack is arranged in a manner that different lower dies sequentially move to the lower part of the upper die unit after circulating movement. By means of the technical scheme, the technical problems that in the prior art, when a die of a pressure bending machine is replaced, the replacement time is long, the shutdown time is long, and the production efficiency is low are solved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of parts processing equipment, and in particular, to a press for processing automobile parts. Background Art

[0002] In the manufacturing process of auto parts, presses are an important and widely used equipment, especially in the processing of parts involving bending technology. Auto parts are of various types, shapes and sizes. In order to meet the production needs of different parts, presses need to frequently change molds.

[0003] At present, the common press brakes on the market have significant technical defects in replacing molds. The traditional press brake mold installation structure is complex, and the mold removal and installation process requires operators to use a variety of tools to perform tedious bolt loosening and tightening operations. During this period, the equipment is in a shutdown state, which greatly wastes production time. Long-term shutdown to replace molds greatly reduces production efficiency.

[0004] In addition, frequent mold replacement can easily cause additional wear on the mold itself and related parts of the press. During the disassembly and installation process, the operator may cause the mold to collide with the equipment due to improper operation, thereby shortening the service life of the mold and equipment. At the same time, the complex mold replacement process also requires a high level of skill and work experience for the operator, increasing labor costs and training difficulties. Summary of the invention

[0005] To overcome the above defects, the embodiments of the present disclosure provide a press for processing automobile parts, which solves the technical problem in the prior art that the press bending machine has a long replacement time when replacing the mold, resulting in long downtime and low production efficiency.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a press for processing automobile parts, comprising: Device body; An upper mold unit, the upper mold unit is vertically slidably arranged on the device body; A lower mold unit, the lower mold unit is arranged on one side of the device body and is located below the upper mold unit; a processing space is formed between the upper mold unit and the lower mold unit; Wherein, the lower mold unit comprises: A lower mold frame, the lower mold frame is located below the upper mold unit; A lower mold mounting frame, wherein the number of the lower mold mounting frames is several, and the several lower mold mounting frames are cyclically arranged on the lower mold frame, and the several lower mold mounting frames are used to install different lower molds; the lower mold mounting frame is arranged so that after the cyclic movement, the different lower molds are moved in sequence to the bottom of the upper mold unit.

[0007] For example, in a press machine for processing automobile parts provided in at least one embodiment of the present disclosure, the lower die mounting frame has a through slot along the thickness direction; the lower die unit further includes: A sliding mounting plate, wherein the sliding mounting plate is slidably disposed in the through slot along the depth direction of the through slot; A lower die fixing frame, the lower die fixing frame is hingedly arranged on the sliding mounting plate, and the lower die mounting frame is used to mount the lower die; The sliding mounting plate is arranged so that after the lower mold mounting frame moves to the upper end of the lower mold frame, the sliding mounting plate drives the lower mold fixing frame to slide close to the lower mold frame, so that the lower mold fixing frame rotates to a vertical state, and the side wall of the lower mold fixing frame abuts against the inner wall of the through groove, so that the lower mold fixing frame cannot swing.

[0008] For example, in a press machine for processing automobile parts provided in at least one embodiment of the present disclosure, there are a plurality of lower die fixing frames, and the plurality of lower die fixing frames are arranged in sequence and at intervals along the length direction of the sliding mounting plate.

[0009] For example, in a press machine for processing automobile parts provided by at least one embodiment of the present disclosure, the upper end of the lower die frame has a groove; the groove is arranged so that after the lower die mounting frame moves to the upper end of the lower die frame, the through groove is connected to the groove; the sliding mounting plate has a clamping protrusion on one side close to the lower die frame, and the lower die unit further includes: A sliding member, the sliding member is lifted and lowered in the groove; A clamping member, wherein the clamping member is disposed on the sliding member; the sliding member and the clamping member are arranged such that after the lower die mounting frame moves to the upper end of the lower die frame, the clamping member contacts the clamping protrusion; The first telescopic member is arranged in the groove, and the sliding member is arranged at the protruding end of the first telescopic member; the first telescopic member is arranged to drive the sliding member to descend in the groove after retraction, so that the sliding mounting plate slides close to the lower mold frame.

[0010] For example, in a press machine for processing automobile parts provided in at least one embodiment of the present disclosure, the side wall of the through groove has a limiting surface, and the side wall of the sliding mounting plate has a limiting protrusion; The limiting surface and the limiting protrusion are arranged so that when the lower mold mounting frame is not at the upper end of the lower mold frame, the limiting protrusion abuts against the limiting surface, thereby being able to limit the position of the sliding mounting plate in the through groove; when the lower mold mounting frame moves to the upper end of the lower mold frame, the lower mold mounting frame can slide close to the lower mold frame, and at this time, the limiting protrusion releases the abutment against the limiting surface.

[0011] For example, in a press machine for processing automobile parts provided in at least one embodiment of the present disclosure, the sliding member has a mounting groove, the clamping member is slidably disposed in the mounting groove, and the lower die unit further includes: The second telescopic member is arranged in the installation groove, and the clamping member is connected to the protruding end of the second telescopic member; after the second telescopic member is retracted, the sliding member is used to block the groove, so that the sliding installation plate can pass through the groove.

[0012] For example, in a press machine for processing automobile parts provided in at least one embodiment of the present disclosure, both the clamping piece and the clamping protrusion edge have rounded corners.

[0013] For example, in a press machine for processing automobile parts provided in at least one embodiment of the present disclosure, the upper die unit includes: An upper die mounting plate, the upper die mounting plate being vertically slidably disposed on the device body; A switching roller, the switching roller is rotatably arranged on the upper mold mounting plate; An upper die mounting frame, wherein the upper die mounting frames are in a plurality of numbers and are arranged on the switching roller along the circumferential direction; The switching roller and the upper die mounting frame are arranged such that after the switching roller rotates, a plurality of the upper die mounting frames move sequentially to the position directly above the lower die unit.

[0014] For example, in a press machine for processing automobile parts provided in at least one embodiment of the present disclosure, the press machine for processing automobile parts further includes a positioning unit, and the positioning unit includes: A positioning mounting frame, the positioning mounting frame being arranged to slide transversely relative to the device body; A positioning plate, the positioning plate is longitudinally slidably arranged on the positioning mounting frame; The positioning mounting frame and the positioning plate are arranged to slide respectively so that the positioning plate approaches the processing space.

[0015] For example, in a press machine for processing automobile parts provided in at least one embodiment of the present disclosure, the positioning unit further includes: A lifting member is arranged on the device body in a transverse sliding manner, and the positioning mounting frame is arranged on the device body through the lifting member. The lifting member is used to drive the positioning mounting frame to rise and fall.

[0016] The beneficial effects of the embodiments of the present disclosure are: In the present disclosure, the lower mold mounting frame that circulates in the lower mold unit improves the efficiency of mold replacement. Compared with the traditional manual disassembly and installation of molds, there is no need for operators to use tools to perform cumbersome operations such as loosening and tightening bolts, which greatly shortens the mold replacement time, effectively reduces equipment downtime, and improves production efficiency. At the same time, it also greatly reduces the labor intensity of operators, reduces the risk of damage to molds and equipment caused by manual operation errors, and effectively extends the service life of molds and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a press for processing automobile parts in one embodiment of the present disclosure; Figure 2 for Figure 1 A schematic structural diagram of a lower mold unit in an embodiment of the present invention; Figure 3 for Figure 1 Schematic diagram of the structure after the lower mold unit is installed with the lower mold in the embodiment Figure 4 for Figure 1 A schematic cross-sectional structure diagram of a lower mold unit in an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 for Figure 1 Another cross-sectional structural schematic diagram of the lower mold unit in the embodiment of the present invention; Figure 7 for Figure 6 Enlarged view of point B in the middle; Figure 8 for Figure 6 Enlarged view of point E in the middle; Fig. 9 for Figure 1 A schematic structural diagram of a lower die mounting frame in an embodiment of the present invention; Fig.10 for Figure 1 A schematic diagram of the structure of the sliding mounting plate in the embodiment of FIG. Fig.11 for Figure 1 Enlarged view of point C in the middle; Fig.12 for Figure 1A schematic structural diagram of a press for processing automobile parts from another angle in an embodiment of the present invention; Fig.13 for Fig.12 Enlarged view of point D in the middle.

[0019] In the figure: 1. device body, 2. upper mold unit, 3. lower mold unit, 31. lower mold frame, 32. lower mold mounting frame, 5. lower mold, 33. lower mold fixing frame, 321. through groove, 34. sliding mounting plate, 311. groove, 341. snap-on protrusion, 35. sliding member, 36. snap-on member, 37. first telescopic member, 322. limiting surface, 342. limiting protrusion, 351. mounting groove, 38. second telescopic member, 21. upper mold mounting plate, 22. switching roller, 23. upper mold mounting frame, 4. positioning unit, 41. positioning mounting frame, 42. positioning plate, 43. lifting member. DETAILED DESCRIPTION The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0020] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0021] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0022] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0023] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0024] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] like Figure 1 to Figure 13 As shown, it shows a press for processing automobile parts in an embodiment of the present disclosure, including a device body 1; an upper mold unit 2 is vertically slidably arranged on the device body 1; a lower mold unit 3 is arranged on one side of the device body 1, below the upper mold unit 2; a processing space is formed between the upper mold unit 2 and the lower mold unit 3; wherein the lower mold unit 3 includes a lower mold frame 31, and the lower mold frame 31 is located below the upper mold unit 2; there are a number of lower mold mounting frames 32, and a number of lower mold mounting frames 32 are cyclically arranged on the lower mold frame 31, and a number of lower mold mounting frames 32 are used to install different lower molds 5; the lower mold mounting frames 32 are arranged so that after the cyclic movement, different lower molds 5 are moved to the bottom of the upper mold unit 2 in sequence.

[0026] For example, Figure 1-3 As shown, in order to solve the problem in the prior art that the press brake has a long replacement time when replacing the mold, resulting in a long downtime and low production efficiency, a press for processing automotive parts is designed. The upper mold unit 2 is connected to the device body 1 through a linear guide rail, and a high-power hydraulic cylinder is used as a driving source to achieve vertical sliding. The lower mold frame 31 is located directly below the upper mold unit 2. The lower mold mounting frame 32 is cyclically moved by means of an annular chain transmission mechanism. The chain is driven by a variable frequency motor, and the moving speed can be flexibly adjusted according to actual needs. A plurality of positioning sensors are arranged on the chain track to ensure that the lower mold mounting frame 32 can accurately stop at the specified position. The lower mold 5 is mounted on the lower mold mounting frame 32.

[0027] In the actual processing of automotive parts, it is often the case that only the lower die is replaced without replacing the upper die. For example, when the thickness of the processed sheet increases but is still within the applicable thickness range of the upper die design, the upper die can exert sufficient pressure on the new thickness sheet to achieve bending by virtue of its own structure and precise control of the hydraulic system. At this time, only the lower die needs to be replaced, and the lower die with a wider and deeper notch is moved to the bottom of the upper die unit 2 through the ring chain transmission mechanism. This is because the notch of the lower die needs to adapt to the thick sheet to ensure that the sheet can be stably placed and deformed as required during bending, and the original upper die is fully capable of applying pressure to the new sheet.

[0028] For example, when the bending angle of automotive parts needs to be fine-tuned, such as from 90° to 85° or 95°, the structure and pressure method of the upper die can still meet the bending requirements after the fine-tuning of the angle. The operator only needs to enter the number of the lower die 5 with the corresponding angle in the control system and replace the lower die 5 with the corresponding angle structure. Because the angle fine-tuning is mainly achieved by changing the angle compensation structure of the lower die, the upper die and the adjusted lower die can cooperate to complete the bending operation at the new angle without replacing the upper die.

[0029] When the production task requires the replacement of the lower mold 5, the motor drives the chain to operate, driving the lower mold mounting frame 32 equipped with the corresponding lower mold 5 to move to the bottom of the upper mold unit 2. At this time, the upper mold unit 2 starts to work, driving the upper mold to move downward, cooperating with the lower mold 5 below, and processing the auto parts placed in the processing space.

[0030] The advantage is that the circulating lower mold mounting frame 32 in the lower mold unit 3 improves the efficiency of mold replacement. Compared with the traditional manual disassembly and installation of the mold, the operator does not need to use tools to perform cumbersome bolt loosening and tightening operations, which greatly shortens the mold replacement time, effectively reduces the equipment downtime, and improves production efficiency.

[0031] In some examples, the lower mold mounting frame 32 has a through groove 321 along the thickness direction; the lower mold unit 3 also includes a sliding mounting plate 34, which is slidably set in the through groove 321 along the depth direction of the through groove 321; the lower mold fixing frame 33 is hingedly set on the sliding mounting plate 34, and the lower mold mounting frame 32 installs the lower mold 5 through the lower mold fixing frame 33; the sliding mounting plate 34 is arranged so that after the lower mold mounting frame 32 moves to the upper end of the lower mold frame 31, the sliding mounting plate 34 drives the lower mold fixing frame 33 to slide close to the lower mold frame 31, so that the lower mold fixing frame 33 rotates to a vertical state, and the side wall of the lower mold fixing frame 33 abuts against the inner wall of the through groove 321, so that the lower mold fixing frame 33 cannot swing.

[0032] For example, Figure 1-8As shown, a through slot 321 is processed on the lower die mounting frame 32, and the sliding mounting plate 34 can slide along the depth direction of the through slot 321. The lower die fixing frame 33 is hinged to the sliding mounting plate 34 through a hinge structure. On the sliding mounting plate 34, a small electric push rod is installed as a driving device.

[0033] Specifically, when the lower mold mounting frame 32 moves to the upper end of the lower mold frame 31 driven by the ring chain transmission mechanism, the electric push rod on the sliding mounting plate 34 is started. The electric push rod pulls the sliding mounting plate 34 to slide along the through slot 321 toward the lower mold frame 31. As the sliding mounting plate 34 moves, the lower mold fixing frame 33 also approaches the lower mold frame 31. When it reaches the predetermined position, the lower mold fixing frame 33 rotates to a vertical state, and its side wall is tightly abutted against the inner wall of the through slot 321. At this time, the lower mold fixing frame 33 cannot swing and is in a stable working state. The upper mold unit 2 starts to work and cooperates with the lower mold 5 on the lower mold fixing frame 33 that has been in place below to process the automotive parts. After the processing is completed, the electric push rod pushes the sliding mounting plate 34 to slide, and the lower mold fixing frame 33 is separated from the inner wall of the through slot 321, and the swingable state is restored, which is convenient for subsequent mold adjustment operations.

[0034] The advantage is that the hinged structure of the sliding mounting plate 34 and the lower mold fixing frame 33 greatly improves the convenience of adjusting the lower mold. When in a non-working state, that is, when the lower mold mounting frame 32 is not at the upper end of the lower mold frame 31, the lower mold fixing frame 33 naturally droops under the action of gravity, effectively reducing the floor space occupied by idle molds, optimizing the layout of the workspace, and facilitating the placement of materials and personnel activities around the equipment. At the same time, this drooping state allows operators to more conveniently approach the mold and quickly perform loading and unloading operations, greatly shortening the mold replacement time and improving work efficiency.

[0035] In some examples, there are a plurality of lower mold fixing frames 33 , and the plurality of lower mold fixing frames 33 are sequentially spaced apart along the length direction of the sliding mounting plate 34 .

[0036] For example, Figure 2-3 As shown, multiple groups of lower die fixing frames 33 are designed and respectively installed on each lower die mounting frame 32. Each group of lower die fixing frames 33 includes multiple lower die fixing frames 33, and multiple lower die fixing frames 33 are hinged on the lower die mounting frame 32 through a rotating shaft or a positioning pin.

[0037] The advantage is that the design of multiple lower mold fixing frames 33 being arranged in sequence along the length direction of the sliding mounting plate 34 improves the mold installation flexibility and versatility of the lower mold unit, and can meet the processing requirements of different automotive parts.

[0038] In some examples, the upper end of the lower mold frame 31 has a groove 311; the groove 311 is arranged so that after the lower mold mounting frame 32 moves to the upper end of the lower mold frame 31, the through groove 321 is connected to the groove 311; the sliding mounting plate 34 has a snap-in protrusion 341 on the side close to the lower mold frame 31, and the lower mold unit 3 also includes a sliding member 35, and the sliding member 35 is raised and lowered in the groove 311; the snap-in member 36 is arranged on the sliding member 35; the sliding member 35 and the snap-in member 36 are arranged so that after the lower mold mounting frame 32 moves to the upper end of the lower mold frame 31, the snap-in member 36 contacts with the snap-in protrusion 341; the first telescopic member 37 is arranged in the groove 311, and the sliding member 35 is arranged at the protruding end of the first telescopic member 37; the first telescopic member 37 is arranged to drive the sliding member 35 to descend in the groove 311 after retraction, so that the sliding mounting plate 34 slides close to the lower mold frame 31.

[0039] For example, Figure 4-8 As shown, a groove 311 is machined at the upper end of the lower mold frame 31. The sliding member 35 slides vertically in the groove 311. The clamping member 36 is designed to be an L-shaped or T-shaped structure connected to the sliding member 35, ensuring that the clamping member 36 can move synchronously with the sliding member 35. The first telescopic member 37 uses a ball screw lifter or a hydraulic lift as a lifting mechanism, which is firmly installed at the bottom of the groove 311, and its output shaft is connected to the bottom of the sliding member 35, which can drive the sliding member 35 to rise and fall smoothly in the groove 311.

[0040] Specifically, when the lower die mounting frame 32 moves to the upper end of the lower die frame 31, the through slot 321 is connected to the groove 311, and at this time, the clamping member 36 is automatically clamped with the clamping protrusion 341 on the sliding mounting plate 34. The first telescopic member 37 starts to drive the sliding member 35 to descend in the groove 311, driving the clamping member 36 to descend synchronously. As the clamping member 36 descends, it applies downward pressure to the clamping protrusion 341, thereby causing the sliding mounting plate 34 to slide downward in the through slot 321 until the lower die fixing frame 33 cannot swing and enters a stable working state. After the processing process is completed, the first telescopic member 37 pushes in the opposite direction to push the sliding member 35 and the clamping member 36 to rise. When it rises to a certain position, the side wall of the lower die fixing frame 33 is released from the inner wall of the through slot 321, and the clamping member 36 can be separated from the clamping protrusion 341. At this time, the lower die mounting frame 32 can continue to move in a cycle driven by the ring chain transmission mechanism.

[0041] The advantage is that the clamping structure of the clamping member 36 and the clamping protrusion 341, in conjunction with the lifting and lowering of the first telescopic member 37, reduces manual intervention, reduces the risk of operational errors, improves the degree of automation of the equipment, and enables the press to operate more stably and efficiently during the processing of automotive parts.

[0042] In some examples, the side wall of the through slot 321 has a limiting surface 322, and the side wall of the sliding mounting plate 34 has a limiting protrusion 342; the limiting surface 322 and the limiting protrusion 342 are arranged so that when the lower mold mounting frame 32 is not at the upper end of the lower mold frame 31, the limiting protrusion 342 abuts against the limiting surface 322, thereby limiting the position of the sliding mounting plate 34 in the through slot 321; when the lower mold mounting frame 32 moves to the upper end of the lower mold frame 31, the lower mold mounting frame 32 can slide close to the lower mold frame, and at this time, the limiting protrusion 342 releases the abutment with the limiting surface 322.

[0043] For example, Figure 4-8 As shown, the limiting surface 322 of the side wall of the through slot 321 is matched with the limiting protrusion 342 of the side wall of the sliding mounting plate 34 .

[0044] Specifically, when the lower die mounting frame 32 is not at the upper end of the lower die frame 31, the sliding mounting plate 34 is restricted by the abutment relationship between the limiting protrusion 342 and the limiting surface 322 to prevent it from being separated from the through slot 321. When production requires processing operations, when the lower die mounting frame 32 moves to the upper end of the lower die frame 31, the sliding mounting plate 34 will approach the lower die frame 31 as the lower die mounting frame 32 moves. In this process, the limiting protrusion 342 and the limiting surface 322 are gradually released from the abutment, and the sliding mounting plate 34 is freed from the limiting constraint and can freely slide along the through slot 321 and the groove 311 to approach the lower die frame 31, until the lower die fixing frame 33 rotates to a vertical state and abuts against the inner wall of the through slot 321, completing the preparation work before processing.

[0045] In some examples, the sliding member 35 has an installation groove 351, the clip 36 is slidably set in the installation groove 351, the lower mold unit 3 also includes a second telescopic member 38, the second telescopic member 38 is set in the installation groove 351, and the clip 36 is connected to the protruding end of the second telescopic member 38; after the second telescopic member 38 retracts, the sliding member 35 is used to block the groove 311, so that the sliding mounting plate 34 can pass through the groove 311.

[0046] For example, Figure 4-8 As shown, the sliding member 35 is provided with a mounting groove 351 for sliding the clamping member 36. The second telescopic member 38 is installed in the mounting groove 351. The clamping member 36 is connected to the extended end of the second telescopic member 38. When the second telescopic member 38 is retracted, the sliding member 35 can block the groove 311, creating conditions for the sliding mounting plate 34 to pass through the groove 311.

[0047] Specifically, when the lower die mounting frame 32 moves toward the upper end of the lower die frame 31, it is determined whether the lower die 5 on the next lower die mounting frame 32 is the required one according to the current processing task requirements. If it is required, the second telescopic member 38 extends to push the clamping member 36 to slide along the sliding assembly in the mounting groove 351, so that when the lower die mounting frame 32 moves toward the upper end of the lower die frame 31, the clamping protrusion 341 on the sliding mounting plate 34 can be clamped with the clamping member 36. If it is not the required mold, the second telescopic member 38 remains retracted. At this time, the sliding member 35 blocks the groove 311, so that the sliding mounting plate 34 can pass through the groove 311 smoothly.

[0048] The advantage is that it avoids accidental contact between the clamping member 36 and the clamping protrusion 341, reduces component loss, prolongs its service life, and reduces equipment maintenance costs. The design of the sliding member 35 blocking the groove 311 after the second telescopic member 38 retracts ensures that the sliding mounting plate 34 can smoothly pass through the groove 311 under certain circumstances, thereby improving the smoothness of equipment operation.

[0049] In some examples, the edges of the clamping member 36 and the clamping protrusion 341 are both rounded.

[0050] For example, Figure 3-10 As shown, the rounded corner design of the edges of the clamping member 36 and the clamping protrusion 341 greatly improves the clamping performance, reduces the wear and impact force during the clamping process, effectively improves the reliability and stability of the clamping structure, and reduces the risk of equipment failure caused by poor clamping.

[0051] In some examples, the upper mold unit 2 includes an upper mold mounting plate 21, which is vertically slidably set on the device body 1; a switching roller 22 is rotatably set on the upper mold mounting plate 21; a number of upper mold mounting frames 23 are circumferentially set on the switching roller 22; the switching roller 22 and the upper mold mounting frame 23 are arranged so that after the switching roller 22 rotates, several upper mold mounting frames 23 move in sequence to directly above the lower mold unit 3.

[0052] For example, Fig.11 As shown, the upper die mounting plate 21 is connected to the device body 1 through a pressure sliding system. The switching roller 22 is mounted on the upper die mounting plate 21 and driven to rotate by a driving motor. The driving motor can control the angle of the switching roller 22 according to actual needs. The upper die mounting frame 23 is evenly mounted on the switching roller 22.

[0053] Specifically, when the upper mold needs to be replaced, the drive motor is started to drive the switching roller 22 to rotate. During the rotation of the switching roller 22, different upper mold mounting frames 23 move sequentially to the top of the lower mold unit 3. When the required upper mold mounting frame 23 moves to the working position, the drive motor stops rotating, and the upper mold mounting frame 23 is precisely positioned. At this time, the upper mold mounting plate 21, driven by the sliding system, drives the upper mold to move downward, and cooperates with the lower mold below to process the automotive parts. After the processing is completed, the upper mold mounting plate 21 rises and resets, waiting for the next mold change or processing instruction.

[0054] Since one upper die bending knife can be used for multiple lower dies, the number of upper dies that can be switched can be less than the number of lower dies that can be switched. The benefit is that it shortens the die replacement time, reduces equipment downtime, and significantly improves production efficiency.

[0055] In some examples, a press machine for processing automobile parts also includes a positioning unit 4, which includes a positioning mounting frame 41, which is laterally slidably arranged relative to the device body 1; a positioning plate 42 is longitudinally slidably arranged on the positioning mounting frame 41; the positioning mounting frame 41 and the positioning plate 42 are arranged to slide separately so that the positioning plate 42 is close to the processing space.

[0056] For example, Figure 12-13 As shown, the positioning mounting frame 41 slides horizontally relative to the device body 1 through a sliding mechanism, and the sliding mechanism is driven by a linear guide rail and a ball screw. The positioning plate 42 slides on the positioning mounting frame 41 through a longitudinal sliding mechanism.

[0057] Specifically, before processing the auto parts, the operator inputs the positioning parameters into the control system according to the size and shape requirements of the parts. The control system drives the sliding mechanism of the positioning mounting frame 41 according to the input parameters, so that the positioning mounting frame 41 slides horizontally to the specified position. Then, the control system drives the sliding mechanism of the positioning plate 42 to slide the positioning plate 42 longitudinally to the appropriate position. During the sliding process, the position sensor monitors the positions of the positioning mounting frame 41 and the positioning plate 42 in real time to ensure that the positioning plate 42 is accurately close to the processing space. The auto parts are positioned against the positioning plate 42 to ensure the processing accuracy.

[0058] In some examples, the positioning unit 4 further includes a lifting member 43 , which is laterally slidably disposed on the device body 1 , and the positioning mounting frame 41 is disposed on the device body 1 through the lifting member 43 , and the lifting member 43 is used to drive the positioning mounting frame 41 to rise and fall.

[0059] For example, Figure 12-13Specifically, when the height of the positioning plate 42 needs to be adjusted, the driving device of the lifting member 43 is started to drive the positioning mounting frame 41 to move up and down, and the positioning plate 42 is adjusted to a suitable height position. Then, the positioning mounting frame 41 and the positioning plate 42 slide horizontally and vertically, and the positioning plate 42 is accurately moved to the vicinity of the processing space to position the automotive parts to be processed.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in the scope of the claims of the present disclosure.

Claims

1. A press for processing automobile parts, characterized in that: include: Device body (1); An upper mold unit (2), the upper mold unit (2) being vertically slidably arranged on the device body (1); A lower mold unit (3), the lower mold unit (3) being arranged on one side of the device body (1) and located below the upper mold unit (2); a processing space is formed between the upper mold unit (2) and the lower mold unit (3); Wherein, the lower mold unit (3) comprises: A lower mold frame (31), the lower mold frame (31) being located below the upper mold unit (2); A lower die mounting frame (32), wherein the number of the lower die mounting frames (32) is several, and the several lower die mounting frames (32) are arranged on the lower die frame (31) in a cyclical manner, and the several lower die mounting frames (32) are used to mount different lower dies (5); the lower die mounting frames (32) are arranged so that after the cyclical movement, the different lower dies (5) are moved in sequence to the bottom of the upper die unit (2).

2. A press for processing automobile parts according to claim 1, characterized in that: The lower die mounting frame (32) has a through slot (321) along the thickness direction; the lower die unit (3) further comprises: A sliding mounting plate (34), the sliding mounting plate (34) being slidably disposed in the through slot (321) along a slot depth direction of the through slot (321); A lower die fixing frame (33), the lower die fixing frame (33) being hingedly arranged on the sliding mounting plate (34), and the lower die mounting frame (32) mounting the lower die (5) via the lower die fixing frame (33); The sliding mounting plate (34) is arranged such that, after the lower die mounting frame (32) moves to the upper end of the lower die frame (31), the sliding mounting plate (34) drives the lower die fixing frame (33) to slide close to the lower die frame (31), so that the lower die fixing frame (33) rotates to a vertical state, and the side wall of the lower die fixing frame (33) abuts against the inner wall of the through groove (321), so that the lower die fixing frame (33) cannot swing.

3. A press for processing automobile parts according to claim 2, characterized in that: The lower die fixing frames (33) are provided in a plurality, and the plurality of lower die fixing frames (33) are sequentially spaced apart along the length direction of the sliding mounting plate (34).

4. A press for processing automobile parts according to claim 2, characterized in that: The upper end of the lower die frame (31) has a groove (311); the groove (311) is arranged so that after the lower die mounting frame (32) moves to the upper end of the lower die frame (31), the through groove (321) is connected to the groove (311); the sliding mounting plate (34) has a clamping protrusion (341) on one side close to the lower die frame (31), and the lower die unit (3) further comprises: A sliding member (35), the sliding member (35) being arranged in a lifting manner in the groove (311); a clamping member (36), the clamping member (36) being disposed on the sliding member (35); the sliding member (35) and the clamping member (36) being arranged such that, after the lower die mounting frame (32) moves to the upper end of the lower die frame (31), the clamping member (36) contacts the clamping protrusion (341); A first telescopic member (37), the first telescopic member (37) being arranged in the groove (311), the sliding member (35) being arranged at an extended end of the first telescopic member (37); the first telescopic member (37) being arranged to drive the sliding member (35) to descend in the groove (311) after retraction, so that the sliding mounting plate (34) slides close to the lower mold frame (31).

5. A press for processing automobile parts according to claim 4, characterized in that: The side wall of the through groove (321) has a limiting surface (322), and the side wall of the sliding mounting plate (34) has a limiting protrusion (342); The limiting surface (322) and the limiting protrusion (342) are arranged such that, after the lower die mounting frame (32) moves to the upper end of the lower die frame (31), the sliding mounting plate (34) slides along the through slot (321) so that the limiting protrusion (342) and the limiting surface (322) are released from contact; and after the lower die mounting frame (32) leaves the upper end of the lower die frame (31), the limiting protrusion (342) and the limiting surface (322) are contacted to prevent the sliding mounting plate (34) from falling out of the through slot (321).

6. A press for processing automobile parts according to claim 5, characterized in that: The sliding member (35) has a mounting groove (351), and the clamping member (36) is slidably arranged in the mounting groove (351). The lower mold unit (3) further comprises: A second telescopic member (38), wherein the second telescopic member (38) is disposed in the mounting groove (351), and the clamping member (36) is connected to the protruding end of the second telescopic member (38); after the second telescopic member (38) is retracted, the sliding member (35) is used to block the groove (311), so that the sliding mounting plate (34) can pass through the groove (311).

7. A press machine for processing automobile parts according to claim 4, characterized in that: The edges of the clamping piece (36) and the clamping protrusion (341) both have rounded corners.

8. A press machine for processing automobile parts according to claim 1, characterized in that: The upper mold unit (2) comprises: An upper die mounting plate (21), the upper die mounting plate (21) being vertically slidably disposed on the device body (1); a switching roller (22), the switching roller (22) being rotatably disposed on the upper die mounting plate (21); An upper die mounting frame (23), wherein the upper die mounting frames (23) are provided in a plurality of numbers, and the upper die mounting frames (23) are arranged on the switching roller (22) along the circumferential direction; The switching roller (22) and the upper die mounting frame (23) are arranged such that after the switching roller (22) rotates, a plurality of the upper die mounting frames (23) move in sequence to directly above the lower die unit (3).

9. A press machine for processing automobile parts according to claim 1, characterized in that: The press machine for processing automobile parts further comprises a positioning unit (4), wherein the positioning unit (4) comprises: A positioning mounting frame (41), the positioning mounting frame (41) being arranged to slide transversely relative to the device body (1); A positioning plate (42), the positioning plate (42) being longitudinally slidably disposed on the positioning mounting frame (41); The positioning mounting frame (41) and the positioning plate (42) are arranged to slide respectively so that the positioning plate (42) is close to the processing space.

10. A press for processing automobile parts according to claim 9, characterized in that: The positioning unit (4) also includes: A lifting member (43), the lifting member (43) is arranged on the device body (1) in a transversely sliding manner, the positioning mounting frame (41) is arranged on the device body (1) through the lifting member (43), and the lifting member (43) is used to drive the positioning mounting frame (41) to rise and fall.

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