A metal product forming apparatus

Abstract

The utility model relates to metal product processing technical field, concretely relates to a forming processing equipment of metal product. The equipment drives piston rod through hydraulic cylinder, and piston rod bottom end is connected with upper clamping plate through first clamping slot bolt, and upper clamping plate fixed extension column is equipped with reverse extension lower clamping plate in the bottom end, and lower clamping plate is embedded in the second clamping slot of connecting column top end through bolt, and connecting column bottom end is fixedly connected with assembly disc and is connected with guide table through bolt, and the guide groove of guide table four corners and the guide rod of upper support constitute sliding pair, and the upper die is installed on the bottom surface of guide table, and the lower die is installed on the top surface of lower support, the utility model discloses the realization hydraulic stroke free regulation through replacing the extension column of different height, and the height restriction of mould is broken through, and the upper and lower clamping plate structure of reverse extension restrains partial load vibration, and the risk of manual regulation is eliminated through all bolt connection, and the precision instability and security hidden danger problem of traditional thread adjusting device are solved.

Description

Technical Field

[0001] This utility model relates to the field of metal product processing technology, and in particular to a metal product forming and processing equipment. Background Technology

[0002] ① Conventional metal stamping equipment relies on hydraulic cylinders to drive the mold closing mechanism, and the piston rod stroke is fixed at the factory. When producing workpieces of different heights, the closing stroke of the new mold assembly often exceeds the original hydraulic cylinder stroke range. At this point, the operator is forced to stop the machine and disassemble the entire unit, or replace it with a hydraulic cylinder system with a longer stroke. This process is not only time-consuming and labor-intensive, but also causes inefficient mold changing and frequent production line downtime due to the interconnected nature of the equipment. The root cause is the lack of flexibility in the stroke matching between the hydraulic power unit and the mold assembly.

[0003] ② To address the issue of fixed stroke length, a spiral extension adjustment device has emerged in the industry: an external thread is machined at the end of the hydraulic cylinder piston rod, and an internally threaded sleeve is screwed onto it. The extension length is changed by manually rotating the sleeve, compensating for the difference between the hydraulic cylinder stroke and the mold height. For example, when the mold assembly increases in height, the sleeve is screwed out to extend the total stroke; when the mold assembly decreases in height, the sleeve is screwed in to shorten the stroke. This method converts the helical motion of the threaded pair into axial extension and contraction, making it possible for a single device to adapt to multiple mold specifications.

[0004] ③ While this spiral adjustment scheme solves the stroke adaptation problem, it introduces two major drawbacks. First, the threaded pair develops a clearance due to mechanical wear during repeated adjustments, causing axial movement of the sleeve under high pressure during hydraulic stamping. This leads to momentary misalignment of the mold during closing, resulting in dimensional deviations in the workpiece. Second, manually adjusting the sleeve requires stopping the machine and twisting heavy metal parts, which not only reduces production efficiency but also increases the risk of operator hand injuries due to the confined operating space. These two drawbacks together expose the fundamental conflict between manual mechanical adjustment and automated stamping processes: uncontrollable precision and safety risks coexist. Utility Model Content

[0005] The purpose of this utility model is to provide a forming and processing equipment for metal products, which fundamentally solves the dual defects of uncontrollable precision and operational safety risks of the spiral extension adjustment device by reconstructing the stroke adjustment structure.

[0006] To achieve the above objectives, this utility model provides a metal product forming and processing equipment, including a hydraulic cylinder. The output end of the hydraulic cylinder is provided with a piston rod, and the bottom end of the piston rod is provided with a first slot. An upper clamping plate is installed in the first slot by bolts. The upper clamping plate is fixedly installed at the top of an extension column. A lower clamping plate is fixedly installed at the bottom end of the extension column. The upper and lower clamping plates extend in opposite directions. The lower clamping plate is installed in a second slot by bolts. The second slot is located at the top of a connecting column. An assembly plate is fixedly installed at the bottom end of the connecting column.

[0007] The hydraulic cylinder is bolted to the top of the upper support, and the piston rod passes through the upper support. After the piston rod passes through, the assembly plate is bolted to the bottom of the guide platform.

[0008] Among them, guide rods are fixedly installed at the four corners of the bottom end of the upper support, and the guide rods are respectively sleeved in the guide grooves on the radial outer side. The guide grooves are opened at the four corners of the guide platform.

[0009] The guide platform has multiple upper mounting holes on the side of its bottom surface adjacent to the guide groove. These upper mounting holes are used for bolts to pass through and fix the upper mold.

[0010] The bottom end of the guide rod is fixedly installed on the lower support. The top surface of the lower support is provided with multiple lower mounting holes on the side adjacent to the guide rod. The lower mounting holes are used for bolts to pass through and fix the lower mold.

[0011] The lower support is fixedly installed with a fixing plate at its bottom end, and a diagonal brace is provided at the connection between the fixing plate and the lower support. The diagonal brace forms a triangular structure to make the lower support structure stable.

[0012] The fixing plate has multiple sets of fixing holes at its four corners. These fixing holes are used for bolts to pass through, so that the lower support is fixed to the ground or an external support platform.

[0013] The core innovation of this utility model is the construction of a rapidly reconfigurable stroke transmission chain: a first groove is machined at the bottom of the piston rod at the output end of the hydraulic cylinder, and an upper clamping plate is installed by bolts. The upper clamping plate is rigidly connected to the top of the extension column, and a lower clamping plate with the opposite extension direction to the upper clamping plate is fixed at the bottom of the extension column. The lower clamping plate is embedded in the second groove at the top of the connecting column and fastened by bolts. The assembly plate installed at the bottom of the connecting column finally outputs pressure.

[0014] As a replaceable unit, the height of the extension column directly determines the transmission distance from the piston rod to the assembly plate. Operators only need to remove and install bolts to replace extension columns of different heights to change the effective stroke length of the hydraulic cylinder, completely breaking through the limitation of fixed stroke in traditional equipment. At the same time, the reverse extension layout of the upper and lower clamping plates forms a torque self-balancing structure during hydraulic drive, actively counteracting the radial off-center load force transmitted by the piston rod, ensuring that the pressure output by the assembly plate acts perpendicularly in the mold closing direction, fundamentally eliminating the precision degradation problem caused by the threaded adjustment structure. The all-bolted fastening connection method eliminates the need for manual rotation of heavy components during stroke switching, avoiding the risk of pinching injury and achieving a simultaneous leap in production efficiency and operational safety.

[0015] The equipment's travel is freely adaptable to mold groups of different heights, completely solving the travel limitations of the original spiral adjustment device; the reverse clamping plate layout and vertical transmission chain work together to ensure the stability of mold closing accuracy; the modular disassembly and assembly mode avoids the safety risks of manual adjustment and improves the efficiency of continuous production line operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the support in an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the guide platform according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the connection of the extension column in an embodiment of this utility model.

[0021] In the diagram: 101, hydraulic cylinder; 102, piston rod; 103, first slot; 104, upper slot plate; 105, extension column; 106, lower slot plate; 107, second slot; 108, connecting column; 109, assembly plate; 110, upper support; 111, guide platform; 112, guide rod; 113, guide groove; 114, upper mounting hole; 116, lower support; 118, fixing plate; 119, diagonal brace plate; 120, fixing hole. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Please see Figures 1-4 .

[0024] This utility model provides a metal product forming and processing equipment. A hydraulic cylinder 101 is vertically fixed to the center of the top surface of an upper support 110 by bolts, ensuring that the piston rod 102 of the hydraulic cylinder 101 passes through the pre-reserved through hole of the upper support 110. An upper clamping plate 104 is fastened and installed in the first clamping groove 103 machined at the bottom end of the piston rod 102 by high-strength bolts. The upper clamping plate 104 is welded to the top end of the extension column 105 to form an integral structure. After selecting an extension column 105 of a specific length according to the mold stroke requirements, the lower clamping plate 106 welded to the bottom end of the extension column 105 is embedded into the second clamping groove 107 at the top of the connecting column 108. The engagement position of the clamping plate and the clamping groove is locked with bolts. The assembly plate 109 welded to the bottom end of the connecting column 108 is fastened to the center of the bottom surface of the guide table 111 by bolts.

[0025] The four guide rods 112 welded to the four corners of the bottom of the upper support 110 are respectively inserted into the guide grooves 113 machined at the four corners of the guide table 111 to form a sliding pair mechanism. On the machined plane of the bottom surface of the guide table 111 near the guide groove 113, the upper mold is locked by a bolt group passing through the upper mounting hole 114. At the same time, on the top surface of the lower support 116 near the mounting area of ​​the guide rods 112, the lower mold is fixed by a bolt group passing through the lower mounting hole 118. The fixed plate 119 welded to the bottom of the lower support 116 and the lower support 116 are connected by a welded diagonal brace 120 to form a triangular support frame. Finally, the whole machine is fixed to the concrete foundation or the base surface of the external support platform by anchor bolts through the fixed holes 121 machined at the four corners of the fixed plate 119.

[0026] The hydraulic system is activated to drive the piston rod 102 to extend, which in turn pushes the upper clamping plate 104, extension column 105, lower clamping plate 106 and connecting column 108 downwards in sequence. This drives the assembly plate 109 to drive the guide table 111 to slide vertically down along the guide rod 112. At this time, the upper mold moves down with the guide table 111 until it completes the mold closing action with the lower mold, realizing the stamping of metal sheet. When it is necessary to adjust the stamping stroke, it is only necessary to remove the bolts and replace the extension column 105 with one of different heights to adapt to the working stroke requirements of the new mold. After the working cycle is completed, the hydraulic cylinder 101 is reset, and the guide table 111 returns to the initial position precisely along the guide rod 112.

[0027] Working principle: When the hydraulic system is driven, the piston rod 102 of the hydraulic cylinder 101 extends downward along the axial direction, pushing the upper clamping plate 104, which is fixed by bolts in the first clamping groove 103 at its bottom end, to move synchronously. The upper clamping plate 104 is rigidly connected to the top of the extension column 105, causing the extension column 105 to move downward as a whole. The lower clamping plate 106 at the bottom of the extension column 105 adopts a symmetrical design that extends in the opposite direction to the upper clamping plate 104. It is locked into the second clamping groove 107 at the top of the connecting column 108 by bolts, forming a self-balancing structure to counteract the torque during movement. Offset; during this process, the extension column 105, as a core replaceable component, directly adjusts the transmission distance from the piston rod 102 to the assembly plate 109 by switching extension columns 105 of different heights, thereby breaking through the inherent stroke limitation of the hydraulic cylinder 101 and realizing flexible control of mold height adaptation and molding speed; the assembly plate 109 moves down with the extension column 105 and pushes the guide table 111 down as a whole through bolts; the vertical movement of the guide table 111 is precisely constrained by the four guide rods 112 fixed at the bottom of the upper support 110, the guide rods 112 The guides are nested in the guide grooves 113 at the four corners of the guide table 111, forming a high-precision sliding pair to ensure no deviation in the mold closing trajectory. The upper mounting hole 114 on the bottom surface of the guide table 111 adjacent to the guide groove 113 is used to fix the upper mold with bolts, so that it is closed in opposite directions with the lower mold fixed in the lower mounting hole 118 on the top surface of the lower support 116. The load-bearing stability of the lower support 116 is significantly enhanced by the triangular support structure formed by the diagonal bracing plate 120. At the same time, the fixing plate 119 is anchored to the ground or external support platform through the bottom fixing hole 121, forming a full-area Vibration-resistant frame; after the mold closing action is completed, the hydraulic system is depressurized, the piston rod 102 retracts and pulls the upper clamping plate 104, extension column 105, lower clamping plate 106 and assembly plate 109 to reset, and the guide table 111 rises synchronously along the guide rod 112. All components work together to achieve closed-loop force transmission: the hydraulic driving force is transmitted to the guide table 111 through the piston rod 102, extension column 105 and assembly plate 109. After the molding load is applied by the upper and lower molds, the force is finally dissipated to the foundation through the lower support 116, diagonal brace 120 and fixed plate 119.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A metal product forming and processing equipment, comprising a hydraulic cylinder (101), characterized in that: The output end of the hydraulic cylinder (101) is provided with a piston rod (102). The bottom end of the piston rod (102) is provided with a first slot (103). An upper slot plate (104) is installed in the first slot (103) by bolts. The upper slot plate (104) is fixedly installed at the top of the extension column (105). A lower slot plate (106) is fixedly installed at the bottom of the extension column (105). The extension directions of the upper slot plate (104) and the lower slot plate (106) are opposite. The lower slot plate (106) is installed in a second slot (107) by bolts. The second slot (107) is opened at the top of the connecting column (108). An assembly plate (109) is fixedly installed at the bottom of the connecting column (108).

2. The metal product forming and processing equipment as described in claim 1, characterized in that: The hydraulic cylinder (101) is bolted to the top of the upper support (110), and the piston rod (102) passes through the upper support (110). After the piston rod (102) passes through, the assembly plate (109) is bolted to the bottom of the guide table (111).

3. The metal product forming and processing equipment as described in claim 2, characterized in that: Guide rods (112) are fixedly installed at the four corners of the bottom end of the upper support (110). The guide rods (112) are respectively sleeved in the guide grooves (113) on the radial outer side. The guide grooves (113) are opened at the four corners of the guide platform (111).

4. The metal product forming and processing equipment as described in claim 3, characterized in that: The bottom surface of the guide platform (111) is provided with a plurality of upper mounting holes (114) on the side adjacent to the guide groove (113). The upper mounting holes (114) are used for bolts to pass through and fix the upper mold.

5. The metal product forming and processing equipment as described in claim 4, characterized in that: The bottom end of the guide rod (112) is fixedly installed on the lower support (116). The top surface of the lower support (116) is provided with a plurality of lower mounting holes (118) on the side adjacent to the guide rod (112). The lower mounting holes (118) are used for bolts to pass through so that the lower mold can be fixed.

6. The metal product forming and processing equipment as described in claim 5, characterized in that: A fixing plate (119) is fixedly installed at the bottom of the lower support (116). A diagonal brace (120) is provided at the connection between the fixing plate (119) and the lower support (116). The diagonal brace (120) forms a triangular structure to make the structure of the lower support (116) stable.

7. The metal product forming and processing equipment as described in claim 6, characterized in that: The fixing plate (119) has multiple sets of fixing holes (121) at its four corners. The fixing holes (121) are used for bolts to pass through so that the lower support (116) is fixed to the ground or external support platform.

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