Cantilever device provided with fork and capable of moving up and down

Abstract

The utility model relates to the technical field of hydraulic machines, in particular to a cantilever device with a fork capable of moving up and down. Comprising a first mounting plate, a second mounting plate, a sliding mechanism, rotary die changing devices and a driving mechanism, the second mounting plate is vertically mounted on one side plate surface of the first mounting plate, the sliding mechanism comprises guide rails and sliding blocks, the guide rails are symmetrically arranged on the other side plate surface of the first mounting plate, and the rotary die changing devices are slidably arranged on the two guide rails through the sliding blocks; the rotary die changing device comprises a cantilever fixing base, a large arm assembly, a small arm assembly and a cantilever fork body, one end of the large arm assembly is rotationally arranged on the cantilever fixing base, the small arm assembly is rotationally arranged at the other end of the large arm assembly, and the cantilever fork body is arranged on the small arm assembly in a sliding mode. The driving mechanism is used for driving the rotary die changing device to vertically slide on the guide rails. According to the utility model, the problem that the forklift occupies the land is effectively solved, and the purposes that one person can change the die and the production efficiency is improved can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a cantilever device with a fork that can move up and down. Background Art

[0002] In the existing hydraulic press die change, a forklift is used for die change, which is rather troublesome. Each time of die change requires several operators. The operators not only need to put the die on the forklift, but also drive the forklift back and forth to change the die. Therefore, it consumes time and labor. In addition, the forklift occupies a large space, so it is necessary to change this situation.

[0003] For this reason, the utility model proposes a cantilever device with a fork that can move up and down, which effectively solves the problem of the forklift occupying land, and can also achieve the purpose that one person can change the die, thus improving the production efficiency. Summary of the Invention

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a cantilever device with a fork that can move up and down.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A cantilever device with a fork that can move up and down, comprising a first mounting plate, a second mounting plate, a sliding mechanism, a die-changing device for rotation, and a driving mechanism. The second mounting plate is vertically mounted on one side surface of the first mounting plate. The sliding mechanism comprises a guide rail and a slider. The guide rails are symmetrically arranged on the other side surface of the first mounting plate. The die-changing device for rotation is slidably arranged on the two guide rails through the slider. The die-changing device for rotation comprises a cantilever fixing seat, a large arm assembly, a small arm assembly, and a cantilever fork. One end of the large arm assembly is rotatably arranged on the cantilever fixing seat, the other end of the large arm assembly is rotatably provided with the small arm assembly, and the cantilever fork is slidably arranged on the small arm assembly. The driving mechanism is used to drive the die-changing device for rotation to slide up and down on the guide rail.

[0007] Further, there are two groups of the cantilever fixing seats, which include a cantilever mounting plate, a connecting plate, and a fixing cylinder. One end surface of the cantilever mounting plate is fixedly connected to the connecting plate, and one end of the connecting plate is fixedly connected to the fixing cylinder.

[0008] Further, the large arm assembly comprises a large arm rotating shaft cylinder, a large arm, and a large arm rotating shaft. The large arm rotating shaft cylinder is fixedly connected to one end of the large arm, and the middle part of the large arm rotating shaft is rotatably arranged inside the large arm rotating shaft cylinder.

[0009] Further, the upper end and the lower end of the large arm rotating shaft are respectively rotatably connected to the fixing cylinder.

[0010] Further, the forearm assembly includes a forearm rotating shaft cylinder, a forearm fixing seat, a forearm, and a forearm rotating shaft. The forearm rotating shaft cylinder is fixedly connected to one end of the large arm away from the large arm rotating shaft cylinder. The forearm rotating shaft is rotatably arranged in the forearm rotating shaft cylinder. The forearm fixing seats are rotatably arranged at both the upper and lower ends of the forearm rotating shaft. The forearm is arranged between the two forearm fixing seats.

[0011] Further, the cross-section of the forearm is in an "I" shape structure, and forearm strengthening plates are fixedly connected to both the upper and lower ends of the forearm.

[0012] Further, the cantilever fork body includes a cantilever fork mounting plate, a cantilever fork upper sliding plate, a cantilever fork lower sliding plate, and a cantilever fork. The cantilever fork mounting plate is fixedly installed in the forearm. The cantilever fork upper sliding plate and the cantilever fork lower sliding plate are symmetrically installed at intervals on the cantilever fork mounting plate. Two of the cantilever forks are slidably arranged in the space formed by the cantilever fork upper sliding plate and the cantilever fork lower sliding plate. The two ends of the cantilever fork upper sliding plate and the cantilever fork lower sliding plate are fixedly connected by limit blocks respectively.

[0013] Further, a hook is fixedly arranged on the connecting plate.

[0014] Further, the driving mechanism is an electric hoist, and the electric hoist is hooked to the hook.

[0015] Compared with the existing technology, a cantilever device with a fork that can move up and down provided by the present utility model adopts a simple mechanical structure. According to the height and position of the mold, the mold-changing device can be rotated and slid to change the mold.

[0016] Its advantages are as follows:

[0017] 1. The structure is simple and does not affect the structural function of the hydraulic press itself.

[0018] 2. The installation is convenient and can be fixed on the body of the hydraulic press through bolts.

[0019] 3. It is safe and efficient. The mold-changing device can be rotated, does not occupy space, and one person can change the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the present utility model;

[0021] Figure 2 is a cross-sectional view of the side view of the present utility model;

[0022] Figure 3 is a cantilever fixing seat;

[0023] Figure 4 is an exploded view of the large arm assembly;

[0024] Figure 5 Explosion diagram of the forearm assembly

[0025] In the figure: 1. First mounting plate, 12. Second mounting plate, 2. Guide rail, 3. Cantilever fixing seat, 31. Cantilever mounting plate, 32. Connecting plate, 321. Hook, 33. Fixed cylinder, 40. Boom rotating shaft cylinder, 41. Boom, 42. Boom rotating shaft, 50. Forearm rotating shaft cylinder, 51. Forearm fixing seat, 52. Forearm, 53. Forearm rotating shaft, 54. Forearm reinforcing plate, 60. Cantilever fork mounting plate, 61. Upper sliding plate of the cantilever fork, 62. Lower sliding plate of the cantilever fork, 63. Cantilever fork, 64. Limit block, 65. Stop block Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. At the same time, the terms "first", "second", etc. are only used to distinguish the names of each component, and there is no primary or secondary relationship, so it cannot be understood as a limitation of the present invention

[0028] Embodiment 1, as Figure 1 、 Figure 2 shown, a cantilever device with a fork that can move up and down, characterized in that it includes a first mounting plate 1, a second mounting plate 12, a sliding mechanism, a die-changing and rotating device, and a driving mechanism. The second mounting plate 12 is vertically mounted on one side surface of the first mounting plate 1. The sliding mechanism includes a guide rail 2 and a slider. Guide rails 2 are symmetrically arranged on the other side surface of the first mounting plate 1. A die-changing and rotating device is slidably arranged on the two guide rails 2 through the slider. The die-changing and rotating device includes a cantilever fixing seat 3, a boom assembly, a forearm assembly, and a cantilever fork body. One end of the boom assembly is rotatably arranged on the cantilever fixing seat 3, the forearm assembly is rotatably arranged at the other end of the boom assembly, and the cantilever fork body is slidably arranged on the forearm assembly. The driving mechanism is used to drive the die-changing and rotating device to slide up and down on the guide rail 2

[0029] With the above - mentioned scheme, by fixedly installing the right - angle included angle formed by the first mounting plate 1 and the second mounting plate 12 on the right - angled side of the corner of the machine, or for the convenience of installation, canceling the second mounting plate 12 and only installing the first mounting plate 1 on the machine body. In this embodiment, the driving mechanism is a chain electric hoist.

[0030] The chain electric hoist is a prior art, which consists of a motor, a transmission mechanism and a sprocket. It has the characteristics of small volume, light self - weight, simple operation and convenient use. It is a light - type lifting equipment and is very convenient for lifting heavy objects, loading and unloading work, repairing equipment and transporting goods. It can also be installed on suspended I - beams, curved tracks, cantilever crane rails and fixed hanging points to lift heavy objects. When in use, the chain electric hoist is suspended on the upper beam of the hydraulic press, and the sprocket of the chain electric hoist is connected to the cantilever fixing seat 3, so as to drive the die - changing device to slide up and down.

[0031] Embodiment 2, as Figure 1 、 Figure 3 shown, in order to make the die - changing device more stable on the guide rail, there are two groups of cantilever fixing seats 3, including a cantilever mounting plate 31, a connecting plate 32 and a fixing cylinder 33. One end face of the cantilever mounting plate 31 is fixedly connected to the connecting plate 32, and one end of the connecting plate 32 is fixedly connected to the fixing cylinder 33.

[0032] The cantilever fixing seat 3 is fixed with a hook 321, and the sprocket of the chain electric hoist is hooked to the hook 321.

[0033] Then fix the two groups of cantilever fixing seats 3 on the slider. In this way, driven by the chain electric hoist, the slider can drive the cantilever fixing seat 3 to slide up and down.

[0034] Embodiment 3, as Figure 4 shown, in order to make the die - changing device rotatable, a boom assembly is provided, including a boom rotating shaft cylinder 40, a boom 41, and a boom rotating shaft 42. The boom rotating shaft cylinder 40 is fixedly connected to one end of the boom 41, and the middle part of the boom rotating shaft 42 is rotatably arranged in the boom rotating shaft cylinder 40.

[0035] Then connect the boom assembly to the cantilever fixing seat 3. Specifically, the upper end and the lower end of the boom rotating shaft 42 are respectively rotatably connected to the fixing cylinders 33 of the two groups of cantilever fixing seats 3. For smooth rotation, an angular contact bearing is provided between the boom rotating shaft cylinder 40 and the boom rotating shaft 42. The angular contact bearing is sleeved at both ends of the boom rotating shaft 42. The angular contact ball bearing can bear both radial load and axial load at the same time, which can reduce the friction between the boom rotating shaft cylinder 40 and the boom rotating shaft 42 and make the rotation smooth. In this embodiment, two groups of angular contact bearings are arranged at both ends of the boom rotating shaft 42. In order to prevent the axial movement of the boom rotating shaft 42, a retaining ring is arranged between the boom rotating shaft 42 and the fixing cylinder 33, and an end cover is also arranged at the end of the fixing cylinder 33.

[0036] With this structure, the boom assembly can rotate on the two sets of cantilever fixing seats 3.

[0037] Embodiment 4: In order to feed the material into the hydraulic press, a forearm assembly rotatably connected to the boom assembly is provided, including a forearm rotating shaft cylinder 50, a forearm fixing seat 51, a forearm 52, and a forearm rotating shaft 53. The forearm rotating shaft cylinder 50 is fixedly connected to one end of the boom 41 away from the boom rotating shaft cylinder 40. The forearm rotating shaft 53 is rotatably arranged in the forearm rotating shaft cylinder 50. Forearm fixing seats 51 are rotatably arranged at both the upper and lower ends of the forearm rotating shaft. A forearm 52 is arranged between the two forearm fixing seats 51.

[0038] The cross-section of the forearm 52 is in an "I" shape structure. In order to strengthen the installation strength of the forearm 52, forearm reinforcing plates 54 are welded to both the upper and lower ends of the forearm 52.

[0039] The forearm reinforcing plates 54 are fixedly connected to the two forearm fixing seats 51 by bolts.

[0040] Similar to the boom assembly, angular contact bearings are arranged between the forearm rotating shaft cylinder 50 and the forearm rotating shaft 53, and a retaining ring is arranged between the contact surfaces of the forearm rotating shaft cylinder 50 and the forearm fixing seat 51 to prevent the forearm rotating shaft cylinder 50 from making radial movement.

[0041] In this way, the forearm assembly can also rotate at one end of the boom assembly.

[0042] Embodiment 5, as Figure 5 shown, in order to better transport the material, a cantilever fork body is further provided, including a cantilever fork mounting plate 60, a cantilever fork upper sliding plate 61, a cantilever fork lower sliding plate 62, and a cantilever fork (63). The cantilever fork mounting plate 60 is fixedly installed in the forearm 52. The cantilever fork upper sliding plate 61 and the cantilever fork lower sliding plate 62 are symmetrically installed on the cantilever fork mounting plate 60. Two cantilever forks 63 are slidably arranged in the space formed by the cantilever fork upper sliding plate 61 and the cantilever fork lower sliding plate 62. The two ends of the cantilever fork upper sliding plate 61 and the cantilever fork lower sliding plate 62 are respectively fixedly connected by limit blocks 64.

[0043] In this embodiment, since the forearm 52 is in an "I" shape structure, the cantilever fork mounting plate 60 can be fixedly installed inside the forearm 52 by bolts, and then the cantilever fork upper sliding plate 61 and the cantilever fork lower sliding plate 62 are fixed on the cantilever fork mounting plate 60 at a certain distance. The space formed by the cantilever fork upper sliding plate 61 and the cantilever fork lower sliding plate 62 is in a groove shape. The front end of the cantilever fork 63 is in a convex character structure, and the convex character structure is slightly smaller than the groove structure ( Figure 2 shown), so the convex character structure can slide in the groove. In order to prevent the cantilever fork 63 from sliding out of the space formed by the cantilever fork upper sliding plate 61 and the cantilever fork lower sliding plate 62, the two ends of the cantilever fork upper sliding plate 61 and the cantilever fork lower sliding plate 62 are respectively connected by limit blocks 64 to ensure that the cantilever fork 63 slides in the concave character structure one.

[0044] In order to prevent the mold from sliding on the cantilever fork 63 when the mold is lifted, a stop block 65 is provided at the end of the cantilever fork 63.

[0045] Working principle: During use, first install all components, then install the entire device on the hydraulic press. According to the height of the mold, lift the height of the rotary die-changing device through the chain electric hoist. According to the position of the mold, freely rotate the rotary die-changing device. According to the size of the mold, slide the two cantilever forks 63 apart by an appropriate distance, then insert them into the groove at the bottom of the mold, and then rotate the cantilever forks 63 towards the hydraulic press and extend them into the interior of the hydraulic press. After placing the mold, rotate the cantilever forks 63 out to achieve die change.

[0046] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A cantilever device with a fork that can move up and down, characterized in that: It includes a first mounting plate (1), a second mounting plate (12), a sliding mechanism, a rotary die-changing device and a driving mechanism. The second mounting plate (12) is vertically mounted on one side surface of the first mounting plate (1). The sliding mechanism includes guide rails (2) and sliders. The guide rails (2) are symmetrically arranged on the other side surface of the first mounting plate (1). The rotary die-changing device is slidably arranged on the two guide rails (2) through sliders. The rotary die-changing device includes a cantilever fixing seat (3), a large arm assembly, a small arm assembly and a cantilever fork. One end of the large arm assembly is rotatably arranged on the cantilever fixing seat (3), the other end of the large arm assembly is rotatably provided with the small arm assembly, and the cantilever fork is slidably arranged on the small arm assembly. The driving mechanism is used to drive the rotary die-changing device to slide up and down on the guide rail (2).

2. The cantilever device with a fork that can move up and down according to claim 1, characterized in that: There are two groups of the cantilever fixing seats, including a cantilever mounting plate (31), a connecting plate (32) and a fixing cylinder (33). One end surface of the cantilever mounting plate (31) is fixedly connected to the connecting plate (32), and one end of the connecting plate (32) is fixedly connected to the fixing cylinder (33).

3. The cantilever device with a fork that can move up and down according to claim 1, characterized in that: The large arm assembly includes a large arm rotating shaft cylinder (40), a large arm (41), and a large arm rotating shaft (42). The large arm rotating shaft cylinder (40) is fixedly connected to one end of the large arm (41), and the middle part of the large arm rotating shaft (42) is rotatably arranged in the large arm rotating shaft cylinder (40).

4. A cantilever device with a fork that can move up and down according to claim 3, characterized in that: The upper and lower ends of the large arm rotating shaft (42) are respectively rotatably connected to the fixing cylinder (33).

5. A cantilever device with a fork that can move up and down according to claim 1, characterized in that: The small arm assembly includes a small arm rotating shaft cylinder (50), a small arm fixing seat (51), a small arm (52) and a small arm rotating shaft (53). The small arm rotating shaft cylinder (50) is fixedly connected to the end of the large arm (41) far from the large arm rotating shaft cylinder (40). The small arm rotating shaft (53) is rotatably arranged in the small arm rotating shaft cylinder (50). The upper and lower ends of the small arm rotating shaft (53) are both rotatably arranged in the small arm fixing seat (51). A small arm (52) is arranged between the two small arm fixing seats (51).

6. A cantilever device with a fork that can move up and down according to claim 5, characterized in that: The cross section of the small arm (52) is in an "I" shape structure, and small arm reinforcing plates (54) are fixedly connected to the upper and lower ends of the small arm (52).

7. A cantilever device with a fork that can move up and down according to claim 1, characterized in that: The cantilever fork includes a cantilever fork mounting plate (60), a cantilever fork upper sliding plate (61), a cantilever fork lower sliding plate (62) and a cantilever fork (63). The cantilever fork mounting plate (60) is fixedly installed in the small arm (52). The cantilever fork upper sliding plate (61) and the cantilever fork lower sliding plate (62) are symmetrically installed at intervals on the cantilever fork mounting plate (60). Two of the cantilever forks (63) are slidably arranged in the space formed by the cantilever fork upper sliding plate (61) and the cantilever fork lower sliding plate (62). The two ends of the cantilever fork upper sliding plate (61) and the cantilever fork lower sliding plate (62) are respectively connected by limit blocks (64).

8. The cantilever device with a fork that can move up and down according to claim 2, characterized in that: A hook (321) is fixedly arranged on the connecting plate (32).

9. A cantilever device with a fork that can move up and down according to claim 1, characterized in that: The driving mechanism is an electric hoist, and the electric hoist is hooked to the hook (321) through a ring chain.

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