Hydraulic mechanical claw for feeding

Abstract

The utility model discloses a hydraulic mechanical gripper for feeding, and belongs to the technical field of clamping devices. The hydraulic mechanical claw for feeding comprises two racks, clamping assemblies are arranged at the bottoms of the two racks correspondingly, each clamping assembly comprises a connecting plate and a clamping plate, the connecting plates are used for connecting the racks and the clamping plates, the connecting plates and the clamping plates are detachably connected, and the distance between the two clamping plates can be adjusted; the clamping plate can deform to be attached to the surface of the part to increase the contact area. Through the arrangement of the clamping plate, the sliding blocks capable of horizontally sliding are arranged at the end, making contact with the part, of the clamping plate, when the sliding blocks make contact with the surface of the part, self-adaptive pressed sliding and multi-point contact with the part can be conducted, and the clamping plate can adapt to the part with the arc-shaped surface through different sliding distances of the different sliding blocks; and the clamping stability is improved by increasing the contact area.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, and more specifically to a hydraulic mechanical claw for feeding. Background Art

[0002] Since the loading and unloading work of machine tools is highly repetitive, relying solely on manual labor to complete the loading process will result in low production efficiency and high labor intensity. Therefore, people improve work efficiency by developing industrial automation to replace simple manual labor. At present, loading is performed by combining machine tools and mechanical claws.

[0003] The existing patent with publication number CN114406782A is a public document of a hydraulic mechanical claw for loading. According to the shape of the loading part, the connecting plate and the clamping plate are adjusted to a suitable angle through the first drive structure and the second drive structure, so that other large-volume parts such as blocks can be loaded. However, in actual use, due to the clamping method of the two clamping plates and the flat ends of the clamping plates, when clamping parts with arc-shaped contact surfaces, the effective contact area is small and the clamping stability is poor. In view of this, we propose a hydraulic mechanical claw for loading. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model aims to provide a hydraulic mechanical claw for feeding materials to solve the problems raised in the above background technology.

[0006] 2. Technical solution

[0007] A hydraulic mechanical claw for feeding, comprising two racks, wherein a clamping assembly is respectively arranged at the bottom of the two racks, wherein the clamping assembly comprises a connecting plate and a clamping plate, wherein the connecting plate is used to connect the racks and the clamping plate, wherein the connecting plate and the clamping plate are detachably connected and the distance between the two clamping plates can be adjusted, and the clamping plate can be deformed to fit the surface of the part to increase the contact area.

[0008] Preferably, the clamping plate comprises a main body, the main body has a built-in accommodating cavity, a slider is slidably mounted on one end of the accommodating cavity, and an end plate which can move horizontally in the accommodating cavity is mounted on the other end of the accommodating cavity.

[0009] Preferably, a sphere is built into the accommodating cavity, and three quarters of the total volume of the accommodating cavity is filled with the sphere.

[0010] Preferably, a push rod is provided on a side of the end plate away from the slider, and the push rod is connected to the main body through a screw hole.

[0011] Preferably, a groove is provided in the middle of the sliding block, and the groove of the sliding block is slidably connected to the main body.

[0012] Preferably, the connecting plate comprises an integrally arranged plate body and a connecting frame, a notch is provided in the middle of the plate body, a clamping piece is installed at the notch through a screw hole on the plate body, and the bottom of the clamping piece is in pressing contact with the clamping plate.

[0013] Preferably, the plate body and the connecting frame are separately provided, a clamping block is fixedly mounted on the upper portion of the connecting frame, and a clamping groove cooperating with the clamping block is formed on the side wall of the plate body.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. By setting the clamping plate, the existing clamping plate structure is optimized. A plurality of sliders that can slide horizontally are set at one end of the clamping plate that contacts the part. When the slider contacts the surface of the part, it can slide under pressure adaptively and contact the part at multiple points. Different sliders can have different sliding distances to adapt to parts with curved surfaces, and the clamping stability can be improved by increasing the contact area.

[0017] 2. Through the setting of the connecting plate, the connecting plate and the clamping plate can be detachably connected. When clamping parts of larger sizes, the distance between the clamping plates can be adjusted before clamping. It is flexible to use. The connection between the connecting plate and the clamping plate is split, and the easily damaged positions are separately set, which can be replaced separately for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is an enlarged schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the disassembly of part of the structure of the utility model;

[0021] Figure 4 It is a cutaway schematic diagram of a partial structure of the utility model.

[0022] Description of the numbers in the figure:

[0023] Rack 1;

[0024] Connecting plate 2; plate body 21; notch 22; pressing member 23; clamping block 24; connecting frame 25; clamping slot 26;

[0025] Clamping plate 3; main body 31; slider 32; end plate 33; push rod 34; groove 35; ball 36; accommodating chamber 37. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0027] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 the present utility model can be understood according to specific circumstances.

[0029] Example:

[0030] See also Figure 1-4 ,This embodiment provides a hydraulic mechanical claw for feeding, referring to Figure 1 , including two racks 1, the racks 1 are used to mesh with the gears and the hydraulic motor, the bottoms of the two racks 1 are respectively provided with clamping assemblies, the hydraulic motor can drive the two clamping assemblies to move closer to each other or farther away from each other in forward and reverse rotation, the clamping assemblies include a connecting plate 2 and a clamping plate 3, the connecting plate 2 is used to connect the racks 1 and the clamping plate 3, the connecting plate 2 and the clamping plate 3 are detachably connected and the distance between the two clamping plates 3 can be adjusted;

[0031] Among them, the sliding of the rack 1 is achieved through the forward and reverse rotation of the hydraulic motor. The hydraulic motor uses hydraulic pressure as the driving force, can output greater torque, and increase the clamping force between the clamping plates 3. When the racks 1 are away from each other to the maximum distance and still cannot clamp the parts, the connecting plate 2 and the clamping plate 3 can be loosened. At this time, the clamping plate 3 can slide horizontally to adjust the initial gap between the two clamping plates 3 to adapt to parts with larger volumes. The clamping plate 3 can be deformed to fit the surface of the part to increase the contact area. When clamping curved parts such as cylindrical parts, the end of the clamping plate 3 that contacts the part can be deformed to increase the effective contact area between the parts, thereby ensuring stable clamping of the parts.

[0032] In a further embodiment, the clamping plate 3 comprises a main body 31, referring to Figure 4 The main body 31 has a built-in accommodating cavity 37, and a slider 32 is slidably installed at one end of the accommodating cavity 37. There are multiple sliders 32. The slider 32 is used to contact the part, and after contacting the part, if the surface of the part is uneven, the slider 32 can be pressed and slid to adapt to the surface of the part to ensure multi-point contact, and a spring (not shown in the figure) is installed between the slider 32 and the end plate 33. After the slider 32 is squeezed, the spring will compress and accumulate force, which can ensure that the slider 32 is pressed against the additional surface to ensure the stability of the clamping. The other end of the accommodating cavity 37 is equipped with an end plate 33 that can move horizontally in the accommodating cavity 37. The end plate 33 moves to the right, which can squeeze the spring to the right, provide an initial compression force for the spring, and can increase the force that the spring can provide during clamping, thereby further improving the clamping stability.

[0033] In a further embodiment, referring to Figure 4 , the spherical body 36 is built into the accommodating cavity 37, and three quarters of the total volume of the accommodating cavity 37 is filled with the spherical body 36. When the slider 32 is under pressure, because the spherical body 36 does not completely fill the accommodating cavity 37, a reserved gap is left between the spherical bodies 36. The slider 32 can move to the left to squeeze the spherical body 36, and the reserved gap between the spherical bodies 36 disappears. Because the spherical body 36 is made of hard material, after the gap disappears, a fixed whole is formed between the main body 31, the spherical body 36 and the slider 32. After the slider 32 slides to adapt to the contour of the part, it can provide a stable clamping force.

[0034] In a further embodiment, referring to Figure 3 A push rod 34 is provided on the side of the end plate 33 away from the slider 32, and the push rod 34 is connected to the main body 31 through a screw hole. The push rod 34 can be rotated forward to squeeze the end plate 33 to the right, and the total volume of the accommodating cavity 37 can be reduced. The sliding distance of the slider 32 can be reduced to adapt to parts with relatively flat surfaces. Similarly, the push rod 34 can be reversed to pull the end plate 33 to the left. At this time, the total volume of the accommodating cavity 37 can be expanded, and the sliding distance of the slider 32 can be increased to adapt to parts with large surface changes. It is highly practical.

[0035] In a further embodiment, referring to Figure 4 A groove 35 is provided in the middle of the slider 32, and the slider 32 is slidably connected to the main body 31 at the groove 35. To prevent detachment, the middle of the slider 32 is narrowed, and an opening is provided at the end of the main body 31 to tightly slide with the middle of the slider 32. When the slider 32 slides left and right, it will not fall off from the opening, thereby ensuring that the position of the slider 32 is stable when used.

[0036] In a further embodiment, referring to Figure 2The connecting plate 2 includes an integrally arranged plate body 21 and a connecting frame 25. The clamping plate 3 is horizontally inserted into the gap between the plate body 21 and the connecting frame 25. A notch 22 is opened in the middle of the plate body 21. A clamping piece 23 is installed on the plate body 21 through a screw hole at the notch 22. The clamping piece 23 can be a screw. The notch 22 is set to facilitate the use of tools to rotate the clamping piece 23. At this time, by tightening the clamping piece 23, the bottom of the clamping piece 23 is pressed and contacted with the clamping plate 3. When it is necessary to adjust the left and right position of the clamping plate 3, the clamping piece 23 can be reversed to loosen the clamping plate 3. At this time, the left and right movement of the clamping plate 3 can be adjusted, and then the clamping piece 23 is rotated to lock the clamping plate 3 again, which is easy to operate.

[0037] In a further embodiment, a notch 22 is provided on the plate body 21 to reduce the deadweight of the plate body 21 and ensure that the rack 1 can be smoothly driven horizontally by the hydraulic motor.

[0038] In a further embodiment, referring to Figure 3 The plate body 21 and the connecting frame 25 are separately arranged. The connecting frame 25 is thin and has a right-angle bend. After long-term use, stress fatigue is prone to occur and it is easy to break at the right-angle bend. The connecting frame 25 is separately arranged and can be replaced separately. The maintenance is convenient and the maintenance cost is low. A clamping block 24 is fixedly installed on the upper part of the connecting frame 25. A clamping groove 26 cooperating with the clamping block 24 is opened on the side wall of the plate body 21. The clamping block 24 is inserted into the clamping groove 26 from top to bottom and is directly hung on the side of the plate body 21, so it can be quickly disassembled and assembled. When the clamping member 23 presses down the clamping plate 3, the connecting frame 25 and the clamping plate 3 can be pressed synchronously without shaking, and it is stable to use.

[0039] In a further embodiment, the block 24 adopts a dovetail head shape, and the block 24 is set as an inclined surface toward the side of the plate body 21, so that the bottom of the block 24 is narrower, the internal contour of the slot 26 is consistent with the block 24, and the depth exceeds the length of the block 24 in the up and down directions. When the block 24 is pressed downward, the block 24 can be tightly inserted in the slot 26, further improving the tightness of the combination between the block 24 and the plate body 21.

[0040] The hydraulic motor involved in the embodiment adopts an existing product produced by Shanghai Yongce Mechanical Equipment Co., Ltd., and its supporting control system, solenoid valve, and circuit pipeline can also be provided by the manufacturer. In addition, the power supply module, circuit and electronic components and control module involved in the utility model are all existing technologies, which can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the internal structure and methods.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A hydraulic mechanical claw for feeding, comprising two racks (1), the bottoms of the two racks (1) are respectively provided with clamping components, characterized in that: The clamping assembly comprises a connecting plate (2) and a clamping plate (3); the connecting plate (2) is used to connect the rack (1) and the clamping plate (3); the connecting plate (2) and the clamping plate (3) are detachably connected and the distance between the two clamping plates (3) can be adjusted; the clamping plate (3) can be deformed to fit the surface of the part to increase the contact area.

2. The hydraulic mechanical claw for feeding according to claim 1, characterized in that: The clamping plate (3) comprises a main body (31), wherein the main body (31) has a built-in accommodating cavity (37), a slider (32) is slidably mounted at one end of the accommodating cavity (37), and an end plate (33) is mounted at the other end of the accommodating cavity (37) and can move horizontally in the accommodating cavity (37).

3. The hydraulic mechanical claw for feeding according to claim 2, characterized in that: The accommodating cavity (37) has a sphere (36) built into it, and three quarters of the total volume of the accommodating cavity (37) is filled with the sphere (36).

4. The hydraulic mechanical claw for feeding according to claim 3 is characterized in that: A push rod (34) is provided on one side of the end plate (33) away from the slider (32), and the push rod (34) is connected to the main body (31) through a screw hole.

5. The hydraulic mechanical claw for feeding according to claim 4, characterized in that: A groove (35) is provided in the middle of the slider (32), and the portion of the slider (32) where the groove (35) is provided is slidably connected to the main body (31).

6. The hydraulic mechanical claw for feeding according to claim 5, characterized in that: The connecting plate (2) comprises an integrally arranged plate body (21) and a connecting frame (25); a notch (22) is provided in the middle of the plate body (21); a pressing piece (23) is installed on the plate body (21) at the notch (22) through a screw hole; the bottom of the pressing piece (23) is in pressing contact with the clamping plate (3).

7. The hydraulic mechanical claw for feeding according to claim 6, characterized in that: The plate body (21) and the connecting frame (25) are arranged separately; a clamping block (24) is fixedly mounted on the upper part of the connecting frame (25); and a clamping groove (26) cooperating with the clamping block (24) is provided on the side wall of the plate body (21).

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