Clamp suitable for large mass metal based elements

Abstract

The utility model provides a kind of clamp suitable for mass metal base element, including bearing main body and displacement drive assembly, the bottom surface of bearing main body is equipped with two clamping plates that can be driven by displacement drive assembly and close or away from each other along first horizontal direction, each the clamping surface of the clamping plate opposite each other is formed with load anti -unhook boss, with the orientation when the clamp is in clamping state as reference, load anti -unhook boss extends along second horizontal direction, load anti -unhook boss can be inserted into recess on the outer wall surface of the metal base element when the clamp is in clamping state to bear the weight of the metal base element in vertical direction, second horizontal direction is perpendicular to first horizontal direction.The utility model can reduce the driving power requirement of displacement drive assembly, while can greatly improve the stability of the relative position of clamping plate and metal base element, to ensure the safety of metal base element clamping transfer.

Description

Technical Field

[0001] This utility model belongs to the field of metal stacking fixture design technology, specifically relating to a fixture suitable for large-mass metal elements. Background Technology

[0002] To address the problems of difficulty in clamping, poor safety, and low precision when using traditional large-size, heavy-weight (at least 700kg) square and cylindrical metal units for stable clamping and precise stacking, manual intervention is usually required before clamping the billet to control the degree of clamping. However, due to the large size and heavy weight of the metal units, clamping them is very difficult, and the traditional method of improving the clamping reliability and stability of the metal units by increasing the clamping force of the fixture is not applicable. Utility Model Content

[0003] Therefore, this utility model provides a clamp suitable for large-mass metal elements, which can overcome the technical problem that the traditional method of relying on clamping force to form a reliable clamping of the clamped object is not applicable to the clamping conditions of large-mass metal elements.

[0004] To address the aforementioned problems, this utility model provides a clamp suitable for large-mass metal elements, comprising a load-bearing body and a displacement driving assembly. The bottom surface of the load-bearing body is provided with two clamping plates that can be driven by the displacement driving assembly to move closer or further apart along a first horizontal direction. Each clamping plate has a load-bearing anti-detachment protrusion formed on its opposing clamping surface. Taking the orientation of the clamp in the clamping state as a reference, the load-bearing anti-detachment protrusion extends along a second horizontal direction. When the clamp is in the clamping state, the load-bearing anti-detachment protrusion can extend into a groove on the outer wall surface of the metal element to bear the weight of the metal element in the vertical direction. The second horizontal direction is perpendicular to the first horizontal direction.

[0005] In some embodiments, the protrusion height of the bearing anti-detachment boss is not less than 0.4 mm and not more than 0.6 mm; and / or, the width of the bearing anti-detachment boss in the vertical direction is between 80 mm and 100 mm.

[0006] In some embodiments, a first groove extending along the first horizontal direction is formed on the bottom surface of the load-bearing body, the top ends of the two clamping plates are slidably connected in the first groove, and the top ends of each clamping plate are confined in the first groove in the vertical direction.

[0007] In some embodiments, the displacement drive assembly is assembled on the top surface of the load-bearing body. The displacement drive assembly includes a rotary motor and two lead screws. The output shaft of the rotary motor is provided with a driving bevel gear. Each of the two lead screws has a driven bevel gear on its first end. Each driven bevel gear is meshed with the driving bevel gear. Each lead screw is pivotally connected to the top surface of the load-bearing body. Each lead screw is threaded with a nut. The two clamping plates can be driven by one of the nuts to reciprocate linearly along the first slide groove.

[0008] In some embodiments, the displacement driving assembly is provided in two sets, and the lead screws of the two sets of displacement driving assemblies are arranged parallel and spaced apart on the top surface of the load-bearing body. The lead screw nuts sleeved on the two lead screws at corresponding positions are simultaneously connected to a connecting plate. The connecting plate is detachably connected to the top end of the clamping plate; and / or, the connecting plate is slidably connected in the first groove.

[0009] In some embodiments, the bottom surface of the load-bearing body is further provided with limiting plates that are spaced apart from each other, and the distance between the two limiting plates can be adjusted along the second horizontal direction to limit the displacement of the metal element in the second horizontal direction.

[0010] In some embodiments, a second groove extending along the second horizontal direction is formed on the bottom surface of the load-bearing body, and the top end of the limiting plate is slidably limited within the second groove.

[0011] In some embodiments, the load-bearing body is provided with a limiting wheel on each of the two side walls in the first horizontal direction, and the limiting wheel is used to roll into the limiting groove on the limiting bracket.

[0012] In some embodiments, the clamping surface of the clamping plate is a plane or a concave surface.

[0013] In some embodiments, the clamping plate integrates a high-pressure jet device for blowing away impurities from the surface of the billet.

[0014] The fixture provided by this utility model, suitable for large-mass metal elements, has the following beneficial effects:

[0015] Bearing anti-detachment protrusions are provided on the clamping surfaces of the two clamping plates, so that they can be inserted into the grooves on the outer wall of the metal element when clamping and transferring it. In actual use, the mass of the metal element is borne by the top surface of the bearing anti-detachment protrusions, and the displacement drive component does not need to provide clamping force matching the weight of the large metal element. It only needs to provide displacement drive for the clamping plates, which can greatly reduce the drive power requirements of the displacement drive component and greatly improve the stability of the relative position between the clamping plates and the metal element, thereby ensuring the safety of clamping and transferring the metal element. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a clamp suitable for large-mass metal elements according to an embodiment of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of a clamping plate in an embodiment of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of another clamping plate in an embodiment of this utility model.

[0020] The attached figures are labeled as follows:

[0021] 11. Load-bearing main body; 111. Second slide rail; 112. First slide rail; 113. Mounting block; 12. Clamping plate; 121. Load-bearing anti-detachment boss; 131. Rotary motor; 132. Lead screw; 133. Lead nut; 14. Limiting plate; 15. Limiting wheel; 100. Metal element. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90° or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] See also Figures 1 to 3 As shown in the figure, according to an embodiment of the present invention, a clamp suitable for large-mass metal elements is provided, including a load-bearing body 11 and a displacement driving assembly (not indicated in the figure). The bottom surface of the load-bearing body 11 is provided with two clamping plates 12 that can be driven by the displacement driving assembly to move closer or further away from each other along a first horizontal direction. Each clamping plate 12 has a bearing anti-detachment protrusion 121 formed on its opposing clamping surface (that is, the surface that contacts the side wall of the clamped object, i.e., the metal element 100). With the orientation of the clamp in the clamping state as a reference, the bearing anti-detachment protrusion 121 extends along a second horizontal direction. The bearing anti-detachment protrusion 121 can extend into a groove on the outer wall of the metal element 100 when the clamp is in the clamping state to bear the weight of the metal element 100 in the vertical direction. The second horizontal direction is perpendicular to the first horizontal direction.

[0027] In this technical solution, a bearing anti-detachment protrusion 121 is provided on the clamping surface of the two clamping plates 12 so that it can be inserted into the groove on the outer wall of the metal element 100 when clamping and transferring the metal element 100. In actual use, the mass of the metal element 100 is borne by the top surface of the bearing anti-detachment protrusion 121, and the displacement drive component does not need to provide a clamping force matching the weight of the large metal element 100. It only needs to provide displacement drive for the clamping plates 12, which can greatly reduce the drive power requirement of the displacement drive component and greatly improve the stability of the relative position between the clamping plates 12 and the metal element 100, thereby ensuring the safety of clamping and transferring the metal element 100.

[0028] To improve the reliability of clamping and transfer, the aforementioned anti-detachment boss 121 can be provided with multiple parallel bosses spaced vertically, such as... Figure 1 In the embodiment shown, a total of three lines are provided.

[0029] In some embodiments, the protrusion height of the bearing anti-detachment boss 121 is not less than 0.4mm and not more than 0.6mm, and in one specific embodiment, it is 0.5mm; the width of the bearing anti-detachment boss 121 in the vertical direction is between 80mm and 100mm.

[0030] In this technical solution, the protrusion height of the anti-detachment boss 121 is designed to be between 0.4mm and 0.6mm, and the vertical width is between 80mm and 100mm. This can ensure the reliable bearing capacity of the anti-detachment boss 121 and prevent the metal base 100 from falling off, while also minimizing the groove opening size of the metal base 100, thereby improving the metal utilization rate of the metal base 100.

[0031] It should be noted that, in order to ensure the accuracy of the left and right position of the metal base 100, the groove depth on the metal base 100 should be greater than the protrusion height of the bearing anti-detachment boss 121, so as to ensure that the clamping surface of the clamping plate 12 can fit against the side wall surface of the metal base 100.

[0032] In a preferred embodiment, a wear-resistant layer is formed on the top surface of the aforementioned anti-detachment protrusion 121 (that is, the surface that mates with the groove wall of the metal element 100) to improve the service life of the clamping plate 12.

[0033] In one embodiment, the grooves on the metal element 100 can be pre-processed before transfer. In another embodiment (not shown), a corresponding grooving device, such as a milling device, can be integrated into the aforementioned clamping plate 12. When controlling the clamping plate 12 to clamp the metal element 100, the milling device is first controlled to process the grooves on the wall surface of the metal element 100. This simplifies the operation process, enables on-site processing of the metal element 100, and improves stacking efficiency. It should be noted that the aforementioned milling device can be any commercially available milling equipment with suitable specifications and dimensions. Since the size of the grooves is small, the overall size of the milling equipment can be relatively small. This application does not intend to improve or protect the structure of the milling equipment, and will not elaborate on it here.

[0034] In some embodiments, a first groove 112 extending along the first horizontal direction is formed on the bottom surface of the load-bearing body 11. The top ends of the two clamping plates 12 are slidably connected within the first groove 112, and the top ends of each clamping plate 12 are vertically confined within the first groove 112. See details below. Figure 2 or Figure 3 As shown, a T-shaped end is formed at the top of the clamping plate 12, and the cross-section of the corresponding first slide groove 112 is also T-shaped. The T-shaped end is matched and assembled in the T-shaped first slide groove 112, thereby realizing the vertical limitation of the clamping plate 12 while ensuring that the clamping plate 12 can slide along the direction of the groove of the first slide groove 112. That is, the mass of the metal element 100 is transferred from the bearing anti-detachment boss 121 on the clamping plate 12 to the load-bearing body 11 via the clamping plate 12.

[0035] It is understandable that, in specific applications, the aforementioned load-bearing body 11 will be assembled onto truss cranes, hoists, robotic arms, and other mechanisms, which will then drive the clamp, which is suitable for large-mass metal elements, to move within the target space.

[0036] See details Figure 1As shown, in some embodiments, the displacement drive assembly is assembled on the top surface of the load-bearing body 11. The displacement drive assembly includes a rotary motor 131 and two lead screws 132. The rotary motor 131 is fixedly assembled on the top surface of the load-bearing body 11. In one specific embodiment, a mounting block 113 is formed on the top surface of the load-bearing body 11, and the rotary motor 131 is fixed on the mounting block 113. The output shaft of the rotary motor 131 is provided with a drive bevel gear (not shown in the figure, not labeled), and the two lead screws... Each of the 132 has a driven bevel gear on its first end, and each driven bevel gear meshes with the driving bevel gear. The mounting block 113 has a hollow space for accommodating the driving bevel gear and the driven bevel gear. Each of the lead screws 132 is pivotally connected to the top surface of the load-bearing body 11 through a corresponding support seat (not indicated in the figure). Each of the lead screws 132 is threaded with a nut 133. The two clamping plates 12 can be driven by one of the nuts 133 to move reciprocally in a straight line along the first slide groove 112.

[0037] In this technical solution, the active bevel gear of the centrally located rotary motor 131 causes the two lead screws 132 on both sides to rotate synchronously. Then, the screw nuts 133 screwed onto each lead screw 132 drive the two clamping plates 12 to move linearly in opposite directions. The structure is simple and compact, and the output clamping force is large. At the same time, the thread self-locking between the screw nuts 133 and the lead screws 132 can ensure the reliable and stable relative position of the two clamping plates 12 during the application of the fixture, thereby improving the safety of the fixture.

[0038] It should be noted that the selection of the thread teeth and the direction of rotation of the aforementioned lead screw 132 can be reasonably selected according to the working conditions, and this utility model will not elaborate on them.

[0039] In such Figure 1 In one specific embodiment shown, the displacement driving assembly is provided in two sets. The lead screws 132 of the two sets of displacement driving assemblies are arranged parallel to each other on the top surface of the load-bearing body 11. The lead screw nuts 133 sleeved on the two lead screws 132 at corresponding positions are simultaneously connected to a connecting plate (not shown in the figure). The connecting plate is detachably connected to the top end of the clamping plate 12.

[0040] In this technical solution, two sets of displacement driving components are set to drive the connecting plate to move linearly back and forth, thereby driving the clamping plates 12 on both sides to move closer or further away, which can ensure the reliable and smooth movement of the clamping plates 12. At the same time, the top of the clamping plate 12 is detachably connected to the connecting plate, which makes it convenient to replace the clamping plate 12.

[0041] Specifically, see details. Figure 2 and Figure 3 As shown, the clamping surface structure of the clamping plate 12 varies depending on the shape of the object being clamped, i.e., the aforementioned metal element 100. Specifically, when the metal element 100 is a cubic prism, the clamping surface of the clamping plate 12 is... Figure 2 The plane shown is the clamping surface of the clamping plate 12 when the metal element 100 is a cylinder. Figure 3 The concave surface shown can be a concave arc surface that matches the cylindrical surface of a cylinder, or it can be... Figure 3 The concave trapezoidal surface is shown. Since the top of the clamping plate 12 is detachably connected to the connecting plate, the clamping plate 12 with a matching clamping surface can be replaced according to the specific shape of the metal element 100.

[0042] In some embodiments, the connecting plate is slidably connected to the first slide groove 112, and the connecting plate and the aforementioned nut 133 are detachably fixed together. Sliding the connecting plate to the first slide groove 112 can further improve the translational stability of the clamping plate 12.

[0043] See further Figure 1 As shown, in some embodiments, the bottom surface of the load-bearing body 11 is also provided with limiting plates 14 that are arranged at relatively intervals. The distance between the two limiting plates 14 can be adjusted along the second horizontal direction to limit the displacement of the metal element 100 in the second horizontal direction.

[0044] In this technical solution, by setting two limiting plates 14 at intervals in the second horizontal direction, the metal element 100 can be reliably limited, effectively preventing slippage and misalignment in the second horizontal direction during the transfer (stacking) of the metal element 100, thereby ensuring the positional accuracy of the metal stack.

[0045] In some embodiments, a second groove 111 extending along the second horizontal direction is formed on the bottom surface of the load-bearing body 11, and the top end of the limiting plate 14 is slidably limited within the second groove 111 to facilitate the adjustment of the position of the limiting plate 14. The aforementioned limiting plate 14 can be fixedly connected to the load-bearing body 11 at the target position using manual or mechanical means. For example, a limiting block (not shown in the figure) is provided in the second slide groove 111 on the side of each limiting plate 14 away from the metal element 100. The limiting block is threaded with a corresponding push bolt (not shown in the figure). The cross-section of the limiting block and the cross-section of the second slide groove 111 are both T-shaped. That is, the limiting block is limited in the vertical direction within the second slide groove 111, but can be pushed and slid along the extension direction of the second slide groove 111. When the limiting block is pushed to the target position, the push bolt is rotated so that its free end pushes against the bottom wall of the second slide groove 111, thereby locking the position of the limiting block and thus locking the position of the limiting plate 14.

[0046] In some embodiments, the load-bearing body 11 is provided with a limiting wheel 15 on each of the two side walls in the first horizontal direction. The limiting wheel 15 is used to roll into the limiting groove (not shown in the figure) on the limiting bracket (not shown in the figure). It is understood that the aforementioned limiting bracket has two spaced left and right, and the limiting groove on it extends up and down along the vertical direction. When stacking the metal elements 100, after the two clamping plates 12 and the two limiting plates 14 of the clamp are driven to the target position to achieve reliable clamping of the metal elements 100, the clamp is moved to the area between the two limiting brackets under the drive of the aforementioned truss crane, hoisting, robotic arm and other mechanisms. By cooperating with the limiting groove on the limiting bracket on both sides of the load-bearing body 11, the metal elements 100 that are transferred back and forth are accurately centered and stacked, which improves the positional accuracy of the metal elements 100 stacked up and down.

[0047] In an embodiment not shown, the clamping plate 12 integrates a high-pressure jet device (not shown) for blowing away impurities on the surface of the billet. Specifically, the jet nozzle of the aforementioned high-pressure jet device can be driven to extend into the bottom side of the metal element 100 held in a lifting state by the clamp, so as to use high-pressure airflow to clean the bottom surface of the metal element 100 (to be stacked) in the lifting state and the top surface of the metal element 100 that has been stacked to the target position in the previous process, ensuring the cleanliness of the mating positions between the stacked metal elements 100 and improving the quality of subsequent solid additive manufacturing.

[0048] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A clamp suitable for large-mass metal elements, characterized in that, The device includes a load-bearing body (11) and a displacement driving assembly. The bottom surface of the load-bearing body (11) is provided with two clamping plates (12) that can be driven by the displacement driving assembly to move closer or further away from each other along a first horizontal direction. Each clamping plate (12) has a bearing anti-detachment protrusion (121) formed on its opposing clamping surface. With the orientation of the clamp in the clamping state as a reference, the bearing anti-detachment protrusion (121) extends along a second horizontal direction. The bearing anti-detachment protrusion (121) can extend into a groove on the outer wall surface of the metal element (100) when the clamp is in the clamping state to bear the weight of the metal element (100) in the vertical direction. The second horizontal direction is perpendicular to the first horizontal direction.

2. The clamp according to claim 1, characterized in that, The protrusion height of the bearing anti-detachment boss (121) is not less than 0.4 mm and not more than 0.6 mm; and / or, the width of the bearing anti-detachment boss (121) in the vertical direction is between 80 mm and 100 mm.

3. The clamp according to claim 1, characterized in that, The bottom surface of the load-bearing body (11) is formed with a first groove (112) extending along the first horizontal direction. The top ends of the two clamping plates (12) are slidably connected in the first groove (112) and the top ends of each clamping plate (12) are limited in the first groove (112) in the vertical direction.

4. The clamp according to claim 3, characterized in that, The displacement drive assembly is assembled on the top surface of the load-bearing body (11). The displacement drive assembly includes a rotary motor (131) and two lead screws (132). The output shaft of the rotary motor (131) is provided with an active bevel gear. The first end of each of the two lead screws (132) is provided with a driven bevel gear. Each driven bevel gear is meshed with the active bevel gear. Each lead screw (132) is pivotally connected to the top surface of the load-bearing body (11). Each lead screw (132) is threaded with a nut (133). The two clamping plates (12) can be driven by one of the nuts (133) to reciprocate linearly along the first slide groove (112).

5. The clamp according to claim 4, characterized in that, The displacement driving assembly is provided in two sets. The lead screws (132) of the two sets of displacement driving assemblies are arranged parallel and spaced apart on the top surface of the load-bearing body (11). The lead screws (133) sleeved on the two lead screws (132) are connected to a connecting plate. The connecting plate is detachably connected to the top of the clamping plate (12); and / or, the connecting plate is slidably connected in the first groove (112).

6. The clamp according to claim 3, characterized in that, The bottom surface of the load-bearing body (11) is also provided with limiting plates (14) that are spaced apart from each other. The distance between the two limiting plates (14) can be adjusted along the second horizontal direction to limit the displacement of the metal element (100) in the second horizontal direction.

7. The clamp according to claim 6, characterized in that, A second groove (111) extending along the second horizontal direction is formed on the bottom surface of the load-bearing body (11), and the top end of the limiting plate (14) is located within the second groove (111).

8. The clamp according to claim 1, characterized in that, The load-bearing body (11) has a limiting wheel (15) on each of the two side walls in the first horizontal direction. The limiting wheel (15) is used to roll with the limiting groove on the limiting bracket.

9. The clamp according to claim 1, characterized in that, The clamping surface of the clamping plate (12) is either a plane or a concave surface.

10. The clamp according to claim 1, characterized in that, The clamping plate (12) is equipped with a high-pressure jet device for blowing away impurities on the surface of the billet.

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