A flying shear assembly method

Abstract

The application provides a flying shear assembly method and relates to the technical field of mechanical manufacturing. The flying shear assembly method comprises the following steps: installing an upper knife seat to an upper crankshaft and installing a lower knife seat to a lower crankshaft, wherein the upper knife seat comprises an upper knife seat body and an upper bearing gland, and the lower knife seat comprises a lower knife seat body and a lower bearing gland; position positioning is performed on the upper knife seat and the lower knife seat, so that the axes of the upper crankshaft and the lower crankshaft are parallel in a first horizontal direction, and the center distance of the upper crankshaft and the lower crankshaft meets a preset distance, wherein the preset distance is consistent with the distance between two mounting holes on a stand for mounting the upper crankshaft and the lower crankshaft; two stands are assembled to the upper crankshaft and the lower crankshaft, and position fixing is performed on the two stands; two ends of a cross beam are connected with the two stands respectively, the two stands are adjusted, and the upper crankshaft and the lower crankshaft are distributed in a vertical direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical manufacturing, in particular to a flying shear assembly method. BACKGROUND

[0002] The flying shear is an important shearing equipment in the hot rolling line, which can be used to quickly cut off the part of the head of the billet which is cold hard and deformed. It generally includes a rack, upper and lower crankshafts, and upper and lower knife seats, wherein the rack includes oppositely arranged vertical supports and a cross beam, such as an upper cross beam, the upper knife seat includes an upper knife seat body and an upper bearing gland, the lower knife seat includes a lower knife seat body and a lower bearing gland, and the double-crank flying shear further includes an upper knife seat connecting rod mechanism and a lower knife seat connecting rod mechanism. The weight of each component of the flying shear is relatively heavy, and the flying shear is generally assembled by vertical installation method. Specifically, the vertical installation method includes several main procedures: arranging the foundation assembly base component to adjust the levelness, installing the vertical supports on the base, adjusting the coaxiality of the mounting holes of the vertical supports for installing the crankshafts, horizontally installing the lower crankshafts into the mounting holes of the vertical supports, assembling the lower knife seat body and the lower bearing gland, horizontally installing the upper crankshafts into the mounting holes of the vertical supports, assembling the upper knife seat body and the upper bearing gland, and installing the upper cross beam.

[0003] This assembly method, due to the assembly of the vertical supports first and then the assembly of the lower crankshafts, needs to adjust the coaxiality and position of the mounting holes of the two vertical supports, and a large number of auxiliary tools are needed for measurement. In addition, the two vertical supports positioning method generally needs to be repaired later, and the positioning accuracy cannot be very precise in the early stage, the positioning accuracy is low, and the assembly cost is high. In addition, when connecting the lower bearing gland, the corresponding threaded connecting piece of the lower bearing gland needs to be connected from the top, which needs to be lifted from the top with connecting tools, etc., which has certain safety hazards. At this time, along the axial direction of the crankshaft, the connection operation space of the threaded connecting piece close to the vertical support is insufficient, and the connecting tool is easy to collide with the vertical support, which is extremely inconvenient to operate.

[0004] In particular, if interference problems are found after assembling, for example, the lower knife seat body and the lower bearing gland, the lower crankshafts need to be disassembled for secondary processing, which is difficult and extremely inefficient. SUMMARY

[0005] The present application aims to solve the problem of how to improve the assembly efficiency and reduce the assembly difficulty of the flying shear to some extent.

[0006] To at least partially solve at least one aspect of the above problem, the present application provides a flying shear assembly method, comprising:

[0007] installing the upper knife seat to the upper crankshaft and installing the lower knife seat to the lower crankshaft, wherein the upper knife seat includes an upper knife seat body and an upper bearing gland, and the lower knife seat includes a lower knife seat body and a lower bearing gland;

[0008] Positioning the upper knife seat and the lower knife seat so that the axes of the upper crankshaft and the lower crankshaft are parallel in a first horizontal direction, and the center distance of the upper crankshaft and the lower crankshaft meets a preset distance, which is consistent with the distance between two mounting holes on the stand for mounting the upper crankshaft and the lower crankshaft;

[0009] Assembling two stands to the upper crankshaft and the lower crankshaft, and fixing the positions of the two stands;

[0010] Connecting two ends of a cross beam to the two stands respectively, and adjusting the two stands so that the upper crankshaft and the lower crankshaft are distributed in an up-down direction.

[0011] Optionally, the positioning of the upper knife seat and the lower knife seat comprises: providing an upper knife seat support structure to support the upper knife seat, and providing a lower knife seat support structure to support the lower knife seat.

[0012] Optionally, in the first horizontal direction, the upper knife seat support structure supports the upper knife seat at at least two positions, and when the upper knife seat is supported by the upper knife seat support structure, the upper bearing gland is arranged downwardly away from a first surface of the upper knife seat body.

[0013] And / or, in the first horizontal direction, the lower knife seat support structure supports the lower knife seat at at least two positions, and when the lower knife seat is supported by the lower knife seat support structure, the lower bearing gland is arranged downwardly away from a second surface of the lower knife seat body.

[0014] Optionally, before the adjustment of the two stands, the flying shear assembly method further comprises: mounting an upper knife seat connecting rod mechanism, wherein one end of the upper knife seat connecting rod mechanism is connected to an end of the upper knife seat body away from the upper crankshaft, and the other end is connected to the stand.

[0015] Optionally, the cross beam comprises an upper cross beam, and the connecting of the two ends of the cross beam to the two stands comprises: after the mounting of the upper knife seat connecting rod mechanism, connecting the two ends of the upper cross beam to the two stands respectively.

[0016] Optionally, the mounting of the upper knife seat connecting rod mechanism comprises: releasing the positioning of the upper knife seat, adjusting the pose of the upper knife seat, and mounting the upper knife seat connecting rod mechanism.

[0017] Optionally, the adjustment of the two stands comprises: hoisting the stands and adjusting the poses of the stands, supporting the two stands on a base, and connecting the stands to the base.

[0018] Optionally, after the connecting operation of the stand and the base is performed, the flying shear assembly method further comprises: installing a lower knife seat connecting rod mechanism, one end of the lower knife seat connecting rod mechanism is connected with the lower knife seat body away from the one end of the lower crankshaft, and the other end is connected with the base.

[0019] Optionally, before the two stands are aligned, the flying shear assembly method further comprises: synchronously assembling the base.

[0020] Optionally, the position fixing of the two stands comprises: setting a stand support structure to support the stands.

[0021] And / or, the installation of the upper knife seat to the upper crankshaft and the installation of the lower knife seat to the lower crankshaft comprises: clamping and installing the upper knife seat body and the upper bearing gland on the upper crankshaft, and synchronously clamping and installing the lower knife seat body and the lower bearing gland on the lower crankshaft.

[0022] In the flying shear assembly method of the present application, the upper knife holder is first installed to the upper crankshaft, the lower knife holder is installed to the lower crankshaft, and then the position of the upper knife holder and the lower knife holder is positioned, after the position of the upper knife holder and the lower knife holder is positioned, the upper crankshaft and the lower crankshaft are arranged in parallel at a preset distance in the first horizontal direction, then the two stands are assembled to the upper crankshaft and the lower crankshaft, after that, the two stands are connected with the two stands respectively through the cross beam, and after the connection of the cross beam is realized, the two stands are adjusted. Specifically, the upper knife holder body and the upper bearing gland clamp are first installed on the upper crankshaft, and the lower knife holder body and the lower bearing gland clamp are installed on the lower crankshaft, at this time, the upper knife holder body, the upper bearing gland, and the bolt connecting member such as a bolt or the like connecting the two together form the upper knife holder, the lower knife holder body, the lower bearing gland, and the bolt connecting member such as a bolt or the like connecting the two together form the lower knife holder, and in this assembly process, when the connection of the lower bearing gland and the lower knife holder body is performed, the connection operation of the threaded connecting member is no longer limited to having to be performed below the lower bearing gland, for example, the opening of the crankshaft connecting hole of the lower knife holder body can be directed upward and the lower knife holder body can be supported, then the lower crankshaft is placed into the crankshaft connecting hole of the lower knife holder body, and the connection of the lower bearing gland and the lower knife holder body is performed from above, thereby realizing the assembly of the lower knife holder and the lower crankshaft, and in this process, there is enough space to perform the connection operation of the threaded connecting member located at the axial edge position of the lower crankshaft and the upper crankshaft, and problems such as whether there is interference between the upper crankshaft and the upper knife holder and between the lower crankshaft and the lower knife holder or whether the knife holder expansion box causes the crankshaft to be unable to be assembled to the correct position can be found in time, thereby avoiding repeated disassembly; when the stand is installed, after the two mounting holes on the stand are aligned with the upper crankshaft and the lower crankshaft respectively, the stand can be moved in the first direction to realize the installation of the stand, which is simple to operate and has strong practicality; after the relative position of the stand is fixed through the cross beam, the two stands are adjusted, so that the stand and the components mounted thereon can be switched in posture as a whole, and after the stand is adjusted, the overall frame of the flying shear is assembled, and other components can be installed or precision adjusted on this basis. Compared with the traditional method of first fixing the relative position of the stand, then assembling the lower crankshaft and the lower knife holder, and then vertically assembling the upper crankshaft and the upper knife holder, the present application actually adopts a horizontal assembly method, avoids the connection of the lower bearing gland from the top, facilitates the connection operation of the threaded connecting member located at the edge, can find problems such as whether there is interference between the upper crankshaft and the upper knife holder and between the lower crankshaft and the lower knife holder or whether the knife holder expansion box causes the crankshaft to be unable to be assembled to the correct position in time, and in addition, as long as the position of the upper knife holder and the lower knife holder is reliably positioned and the center distance of the upper crankshaft and the lower crankshaft in the first horizontal direction meets the preset distance, the assembly precision requirement can be met, and compared with the method of first assembling the stand, the relative position precision between the upper crankshaft and the lower crankshaft can be ensured, the method of the present application is simple and has strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Flow chart of the flying shear assembly method in the embodiment of the present application;

[0024] Figure 2 Flow chart of the flying shear assembly method in another embodiment of the present application;

[0025] Figure 3 Structure diagram of the flying shear obtained after being assembled by the flying shear assembly method of the present application;

[0026] Figure 4 Figure 3 Another structure diagram of the flying shear shown in the figure;

[0027] Figure 5 Structure diagram of the upper knife holder and the lower knife holder after being positioned in the embodiment of the present application;

[0028] Figure 6 Structure diagram of the two stands being assembled to the upper crankshaft and the lower crankshaft and being positioned in the embodiment of the present application.

[0029] Explanation of reference numerals:

[0030] 11 - stand; 12 - base; 13 - upper crankshaft; 14 - upper knife holder; 141 - upper knife holder body; 142 - upper bearing gland; 15 - lower knife holder; 151 - lower knife holder body; 152 - lower bearing gland; 16 - upper knife holder connecting rod mechanism; 17 - lower knife holder connecting rod mechanism; 18 - upper cross beam; 19 - lower crankshaft; 20 - upper knife holder support structure; 21 - lower knife holder support structure; 22 - stand support structure. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0033] ​In the description of the specification, the description of the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or embodiment are included in at least one embodiment or embodiment of the application. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0034] The terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0035] The Z-axis in the drawing represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis, that is, the arrow of the Z-axis points to, represents the up, and the negative direction of the Z-axis, that is, the direction opposite to the positive direction of the Z-axis, represents the down; The X-axis in the drawing represents the horizontal direction, which is designated as the left and right position, and the positive direction of the X-axis, that is, the arrow of the X-axis points to, represents the right side, and the negative direction of the X-axis, that is, the direction opposite to the positive direction of the X-axis, represents the left side; The Y-axis in the drawing represents the front and rear position, and the positive direction of the Y-axis, that is, the arrow of the Y-axis points to, represents the front side, and the negative direction of the Y-axis, that is, the direction opposite to the positive direction of the Y-axis, represents the rear side; It should be noted that the meanings of the aforementioned Z-axis, Y-axis and X-axis are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the application.

[0036] The embodiment of the application provides a flying shear assembly method for assembling a flying shear.

[0037] As shown in Figure 3 and Figure 4 , which schematically shows the structure of the flying shear to which the flying shear assembly method of the application is applied.

[0038] It should be understood that the flying shear assembling method of the present application is directed to a flying shear which can include an upper crankshaft 13, a lower crankshaft 19, an upper knife holder 14, a lower knife holder 15, two stands 11 and a cross beam, etc., wherein the upper knife holder 14 includes an upper knife holder body 141 and an upper bearing gland 142, the lower knife holder 15 includes a lower knife holder body 151 and a lower bearing gland 152, the two stands 11 are oppositely arranged and connected together by the cross beam when the flying shear is in an assembled state, the upper crankshaft 13 and the lower crankshaft 19 are rotatably mounted on the two stands 11, the upper knife holder body 141 and the upper bearing gland 142 are clamped on the upper crankshaft 13 to form the upper knife holder 14, and the upper knife holder 14 is rotatably connected with the upper crankshaft 13 through a first upper bearing, the lower knife holder body 151 and the lower bearing gland 152 are clamped on the lower crankshaft 19 to form the lower knife holder 15, and the lower knife holder 15 is rotatably connected with the lower crankshaft 19 through a first lower bearing. The flying shear further includes other components, such as an upper knife holder connecting rod mechanism 16 and a lower knife holder connecting rod mechanism 17, etc., which can adopt related technologies, and corresponding descriptions will be made later.

[0039] As shown in Figure 1 the flying shear assembling method includes:

[0040] S1, mounting the upper knife holder 14 to the upper crankshaft 13 and mounting the lower knife holder 15 to the lower crankshaft 19, wherein the upper knife holder 14 includes an upper knife holder body 141 and an upper bearing gland 142, and the lower knife holder 15 includes a lower knife holder body 151 and a lower bearing gland 152.

[0041] In this step, the upper knife holder body 141 and the upper bearing gland 142 are assembled to the upper crankshaft 13, and the upper knife holder body 141 and the upper bearing gland 142 are connected through threaded connections such as bolts, so that the upper knife holder 14 composed of the upper knife holder body 141 and the upper bearing gland 142, etc. can rotate relative to the upper crankshaft 13, of course, at this time, the upper crankshaft 13 and the upper knife holder 14 are provided with, for example, a first upper bearing.

[0042] In this step, the lower knife holder body 151 and the lower bearing gland 152 are assembled to the lower crankshaft 19, and the lower knife holder body 151 and the lower bearing gland 152 are connected through threaded connections such as bolts, so that the lower knife holder 15 composed of the lower knife holder body 151 and the lower bearing gland 152, etc. can rotate relative to the lower crankshaft 19, of course, at this time, the lower crankshaft 19 and the lower knife holder 15 are provided with, for example, a first lower bearing.

[0043] Therefore, the upper knife seat 14 and the lower knife seat 15 are not connected to the upper crankshaft 13 and the lower crankshaft 19 after the upper crankshaft 13 and the lower crankshaft 19 are installed to the stand 11, so that when the lower bearing cover 152 is installed, the operation is not performed in the upward direction, and when the lower bearing cover 152 is connected to the lower knife seat body 151, there is enough operation space, for example, the threaded connection, such as a bolt, at the axial end of the lower crankshaft 19 can be conveniently connected, and the operation space is not limited by the stand 11. The assembly difficulty of the upper knife seat 14 and the lower knife seat 15 can be greatly reduced.

[0044] In S2, the upper knife seat 14 and the lower knife seat 15 are positioned so that the axes of the upper crankshaft 13 and the lower crankshaft 19 are parallel in the first horizontal direction, and the center distance of the upper crankshaft 13 and the lower crankshaft 19 meets the preset distance, which is consistent with the distance between the two mounting holes of the stand 11 for mounting the upper crankshaft 13 and the lower crankshaft 19.

[0045] It should be understood that the specific way of positioning the upper knife seat 14 and the lower knife seat 15 is not limited, as long as by positioning the two, after the upper crankshaft 13 and the lower crankshaft 19 are rotated to remain stationary relative to the upper crankshaft 13 and the lower crankshaft 19 under the action of gravity, the upper crankshaft 13 and the lower crankshaft 19 meet the "axes are parallel in the first horizontal direction, and the center distance of the upper crankshaft 13 and the lower crankshaft 19 meets the preset distance". At this time, the relative positions of the axes of the upper crankshaft 13 and the lower crankshaft 19 are consistent with the relative positions of the axes of the two in actual use.

[0046] In S3, two stands 11 are assembled to the upper crankshaft 13 and the lower crankshaft 19, and the two stands 11 are fixed in position.

[0047] Taking one of the stands 11 as an example, the stand 11 is lifted by a carrying device, such as a lifting device, so that the two mounting holes thereof are distributed in the first horizontal direction, and the two mounting holes of the stand 11 are respectively sleeved on the corresponding positions of the upper crankshaft 13 and the lower crankshaft 19. At this time, the second upper bearing is arranged between the stand 11 and the upper crankshaft 13, and then the two stands 11 are fixed in position to avoid movement of the stand 11.

[0048] After the two stands 11 are fixed in position, the connection of the upper crankshaft 13 and the two stands 11, and the connection of the lower crankshaft 19 and the two stands 11 are completed.

[0049] In S4, the two ends of the cross beam are respectively connected to the two stands 11, the two stands 11 are adjusted, and the upper crankshaft 13 and the lower crankshaft 19 are distributed in the up-down direction.

[0050] Specifically, after the two ends of the cross beam are connected to the two stands 11 respectively, the two stands 11 will not be displaced relative to each other, so that the stands 11 can be lifted by hoisting equipment and arranged, so as to meet the use requirements of the flying shear.

[0051] Of course, it should be understood that in this S4 step, measures can also be taken as needed to limit the upper knife seat 14 and the lower knife seat 15 during the process of changing the posture of the stand 11, so as to avoid collision of the upper knife seat 14 and the lower knife seat 15, etc., which is not as a limitation.

[0052] Thus, firstly, the upper tool holder 14 is installed onto the upper crankshaft 13, and the lower tool holder 15 is installed onto the lower crankshaft 19. Then, the upper tool holder 14 and the lower tool holder 15 are positioned. After positioning, the upper crankshaft 13 and the lower crankshaft 19 are set at a preset distance apart in the first horizontal direction and are distributed in parallel. Then, the two uprights 11 are assembled onto the upper crankshaft 13 and the lower crankshaft 19. Afterward, they are connected to the two uprights 11 respectively through crossbeams. After the crossbeams are connected, the two uprights 11 are aligned. Specifically, the upper tool holder body 141 and the upper bearing cap 142 are first clamped and installed on the upper crankshaft 13, and the lower tool holder body 151 and the lower bearing cap 152 are clamped and installed on the lower crankshaft 19. At this time, the upper tool holder body 141, the upper bearing cap 142, and the bolted connecting parts such as bolts together form the upper tool holder 14, and the lower tool holder body 151, the lower bearing cap 152, and the bolted connecting parts such as bolts together form the lower tool holder 15. During this assembly process, when connecting the lower bearing cap 152 to the lower tool holder body 151, it is no longer limited to connecting the threaded parts below the lower bearing cap 152. For example, the crankshaft connecting hole of the lower tool holder body 151 can be oriented upwards to support the lower tool holder body 151, and then the lower crankshaft 19 can be placed into the crankshaft connecting hole of the lower tool holder body 151. Then, the lower bearing cap 152 can be connected to the lower tool holder body 151 from above. The connection enables the assembly of the lower blade holder 15 and the lower crankshaft 19. During this process, sufficient space is provided for connecting threaded connectors, such as those located at the axial edges of the lower crankshaft 19 and the upper crankshaft 13. This also allows for timely detection of interference between the upper crankshaft 13 and the upper blade holder 14, and between the lower crankshaft 19 and the lower blade holder 15, or for blade holder expansion causing the crankshaft to be unable to be assembled in the correct position, avoiding repeated disassembly. When installing the upright 11, after aligning the two mounting holes on the upright 11 with the upper crankshaft 13 and the lower crankshaft 19 respectively, moving the upright 11 along the first direction achieves the installation of the upright 11. The operation is simple and highly practical. After fixing the relative positions of the upright 11 through the crossbeam, the two uprights 11 are aligned, allowing the upright 11 and its mounted components to switch postures as a whole. After aligning the uprights 11, the overall frame of the flying shear machine is assembled, and other components can be installed or precision adjusted on this basis.Compared with the traditional vertical stand 11 relative position fixed, then the assembly of the lower shaft 19 and the lower knife seat 15 and the vertical assembly method of the upper shaft 13 and the upper knife seat 14, the present application actually adopts horizontal assembly method, avoids the connection of the upper bearing cover 152 in the upward direction, and facilitates the connection operation of the threaded connection parts located at the edge, so that the problems such as whether there is interference between the upper shaft 13 and the upper knife seat 14 and the lower shaft 19 and the lower knife seat 15 or the knife seat expansion tank causes the crankshaft to be unable to be assembled to the correct position can be found in time, in addition, as long as the position positioning of the upper knife seat 14 and the lower knife seat 15 is reliable and the center distance of the upper shaft 13 and the lower shaft 19 in the first horizontal direction meets the preset distance, the assembly precision requirement can be met, compared with the assembly of the vertical stand 11, the relative position precision between the upper shaft 13 and the lower shaft 19 can be ensured, the method of the present application is simple and practical.

[0053] Optionally, the position positioning of the upper knife seat 14 and the lower knife seat 15 comprises: setting an upper knife seat support structure 20 to support the upper knife seat 14, and setting a lower knife seat support structure 21 to support the lower knife seat 15.

[0054] The supporting mode of the upper knife seat 14 and the lower knife seat 15 is not limited, for example, the upper knife seat 14 can be lifted and supported by the upper knife seat support structure 20, the upper knife seat support structure 20 can comprise a support box and a pad block arranged on the support box, and the height of the upper knife seat 14 after being supported can be adjusted by adjusting the number and specifications of the pad blocks.

[0055] The position positioning of the upper knife seat 14 and the lower knife seat 15 can be that the upper knife seat 14 is supported first, and then the lower knife seat 15 is lifted and transported, and the position positioning of the lower knife seat 15 relative to the upper knife seat 14 is completed, and then the upper knife seat 14 is supported. It can also be that the upper knife seat 14 and the lower knife seat 15 are supported by the upper knife seat support structure 20 and the lower knife seat support structure 21 respectively, and then the upper knife seat support structure 20 and the lower knife seat support structure 21 are adjusted to make the upper shaft 13 and the lower shaft 19 be separated by a preset distance in the first horizontal direction.

[0056] At this time, optionally, a tooling such as a positioning plate can be provided, the positioning plate is provided with two positioning holes, the distance between the positioning holes is consistent with the distance between the mounting holes on the vertical stand 11, so that during the position positioning of the upper knife seat 14 and the lower knife seat 15, the upper shaft 13 and the lower shaft 19 can be relatively positioned by the positioning holes of the positioning plate, the positioning holes can be provided as an open structure, the width of the opening is consistent with the diameter of the positioning hole, which will not be described in detail here.

[0057] It should be understood that after the upper knife seat 14 and the lower knife seat 15 are supported, the two ends of the upper crankshaft 13 are respectively arranged beyond the edges of the upper knife seat support structure 20, and the part of the upper crankshaft 13 for mounting the stand 11 is exposed, and the two ends of the lower crankshaft 19 are respectively arranged beyond the edges of the lower knife seat support structure 21, and the part of the lower crankshaft 19 for mounting the stand 11 is exposed.

[0058] In this way, the upper knife seat 14 is supported by the upper knife seat support structure 20, and the lower knife seat 15 is supported by the lower knife seat support structure 21, the position of the upper knife seat 14 and the lower knife seat 15 is reliable, and it is convenient to subsequently remove the upper knife seat support structure 20 and the lower knife seat support structure 21. The upper knife seat support structure 20 and the lower knife seat support structure 21 are preferably arranged at intervals, so that the upper knife seat 14 and the lower knife seat 15 can be individually supported.

[0059] As shown in Figure 5 Optionally, in the first horizontal direction, the upper knife seat support structure 20 supports the upper knife seat 14 at at least two positions, and when the upper knife seat 14 is supported by the upper knife seat support structure 20, the upper bearing gland 142 is arranged downwardly away from the first surface of the upper knife seat body 141.

[0060] Specifically, in normal use of the flying shear machine, the first surface is the upper surface of the upper bearing gland 142, the upper knife seat support structure 20 supports the upper bearing gland 142 at the first surface, and the upper knife seat body 141 is supported at the end away from the upper crankshaft 13 (this end is used to be connected with the upper knife seat connecting rod mechanism 16), so that the upper knife seat 14 can be supported.

[0061] In this way, the support structure of the upper knife seat 14 is simple and has high stability.

[0062] Optionally, in the first horizontal direction, the lower knife seat support structure 21 supports the lower knife seat 15 at at least two positions, and when the lower knife seat 15 is supported by the lower knife seat support structure 21, the lower bearing gland 152 is arranged downwardly away from the second surface of the lower knife seat body 151.

[0063] Specifically, in normal use of the flying shear machine, the second surface is the lower surface of the lower bearing gland 152, the lower knife seat support structure 21 supports the lower bearing gland 152 at the second surface, and the lower knife seat body 151 is supported at the end away from the lower crankshaft 19 (this end is used to be connected with the lower knife seat connecting rod mechanism 17), so that the lower knife seat 15 can be supported, the support structure is simple, and has high stability.

[0064] As shown in Figure 2As shown, before the two stands 11 are aligned, the flying shear assembly method further comprises: installing an upper knife seat connecting rod mechanism 16, wherein one end of the upper knife seat connecting rod mechanism 16 is connected to one end of the upper knife seat body 141 away from the upper crankshaft 13, and the other end is connected to the stand 11.

[0065] The upper knife seat connecting rod mechanism 16 generally comprises two connecting rods, which form a four-bar linkage mechanism after being connected with the stand 11 and the upper crankshaft 13, which can use related technologies and will not be described in detail here.

[0066] In this way, the connection of the upper knife seat connecting rod mechanism 16 is performed before the stand 11 is aligned, so that the positions of the upper knife seat 14 and the upper knife seat connecting rod mechanism 16 relative to the stand 11 will not change during the subsequent alignment of the stand 11, and there is no need to additionally provide a structure to fix the position of the upper knife seat 14 relative to the stand 11, which is highly reliable and practical.

[0067] As shown, Figure 2 As shown, the two ends of the cross beam are connected to the two stands 11, respectively, which comprises: after the upper knife seat connecting rod mechanism 16 is installed, the two ends of the upper cross beam 18 are connected to the two stands 11, respectively.

[0068] The upper cross beam 18 can be provided as multiple, for example, generally provided as two, which can use related technologies. Of course, when the upper cross beam 18 is connected, that is, before the stand 11 is aligned, the upper cross beam 18 is located at one end of the stand 11 along the first horizontal direction, and can be provided as two spaced apart along the up-down direction.

[0069] In this case, before the installation of the upper cross beam 18, when the upper knife seat body 141 is in a supported state, the upper knife seat body 141 can occupy the installation position of the upper cross beam 18, or if the upper cross beam 18 is installed first, it can affect the rotation of the upper knife seat body 141 to the position of installing the upper knife seat 14 connecting rod.

[0070] In this way, after the upper knife seat connecting rod mechanism 16 is installed, the installation of the upper cross beam 18 is performed, which avoids the collision between the upper cross beam 18 and the upper knife seat connecting rod mechanism 16 that can be caused by the installation of the upper cross beam 18 first, and can leave operation space for connecting the upper knife seat connecting rod mechanism 16.

[0071] Further, the installation of the upper knife seat connecting rod mechanism 16 comprises: releasing the position positioning of the upper knife seat 14, adjusting the pose of the upper knife seat 14, and installing the upper knife seat connecting rod mechanism 16.

[0072] Specifically, when the upper knife seat support structure 20 supports the upper knife seat 14 at at least two positions along the first horizontal direction, the mounting upper knife seat linkage 16 specifically includes:

[0073] The lifting rope of the lifting device is connected with the end of the upper knife seat body 141 away from the upper crankshaft 13, and the support of the upper knife seat support structure 20 on the upper knife seat 14 is released. For example, part or all of the upper knife seat support structure 20 is removed.

[0074] The lifting device is controlled so that the end of the upper knife seat body 141 away from the upper crankshaft 13 moves to the first preset position and is connected with one end of the mounting upper knife seat linkage 16. For example, the upper knife seat 14 is rotated and the end of the upper knife seat body 141 away from the upper crankshaft 13 is switched from one end of the stand 11 to above the stand 11, and then one end of the mounting upper knife seat linkage 16 is connected with the end of the upper knife seat body 141 away from the upper crankshaft 13.

[0075] The other end of the mounting upper knife seat linkage 16 is connected with the stand 11. For example, the connection is achieved through a connecting shaft.

[0076] Of course, in other schemes, the upper knife seat 14 is already in the first preset position when it is supported by the upper knife seat support structure 20, so the structure of the upper knife seat support structure 20 is relatively high and the cost is also higher.

[0077] Optionally, the two stands 11 are aligned by lifting the stands 11 and adjusting the poses of the stands 11 (for example, adjusting the poses of the stands 11 and switching the upper crankshaft 13 and the lower crankshaft 19 from being spaced apart along the first direction to being spaced apart along the up-down direction), supporting the two stands 11 on the base 12, and performing the connecting operation of the stands 11 and the base 12.

[0078] Specifically, at this time, the flying shear machine includes a base 12 for connecting with the two stands 11 at the bottom of the stands 11, respectively. The connecting direction of the base 12 and the stands 11 can adopt related prior art, for example, using a threaded connecting piece to connect.

[0079] In this way, instead of lifting and assembling the base 12 to the stands 11 and then aligning the entire flying shear machine, the poses of the stands 11 are adjusted and the stands 11 are supported on the base 12, which can reduce the operation difficulty to a certain extent and facilitate the connection of the stands 11 and the base 12.

[0080] It should be understood that, on the basis of being equipped with the base 12 connected with the two stands 11, respectively, the flying shear machine does not need to additionally provide a lower cross beam to fix the relative positions of the lower ends of the two stands 11, which will not be described in detail here.

[0081] As shown in Figure 2 Optionally, after the connecting operation of the stand 11 and the base 12 is performed, the flying shear assembly method further comprises: installing a lower knife seat connecting rod mechanism 17, one end of the lower knife seat connecting rod mechanism 17 is connected with one end of the lower knife seat body 151 away from the lower crankshaft 19, and the other end is connected (for example, connected through a connecting shaft) with the base 12.

[0082] In this case, the other end of the lower knife seat connecting rod mechanism 17 is not connected with the stand 11, but is connected with the base 12, which can reduce the height requirement of the stand 11 in the up-down direction to a certain extent, and the structure of the lower knife seat connecting rod mechanism 17 is similar to that of the upper knife seat connecting rod mechanism 16. Of course, if the other end of the lower knife seat connecting rod mechanism 17 is arranged to be connected with the stand 11, the connecting operation of the lower knife seat connecting rod mechanism 17 can be performed before the stand 11 is aligned. Here, it will not be described in detail.

[0083] It should be understood that after the stand 11 is aligned, the flying shear assembly method can further include other sub-steps, such as installing a driving system, performing precision adjustment, etc., which can include adjusting overall level, centering of the upper knife seat 14 and the lower knife seat 15, shear blade gap adjustment, overall test run, etc., which can use related technologies, and will not be described one by one here.

[0084] As shown in Figure 2 Optionally, before the two stands 11 are aligned, the flying shear assembly method further comprises synchronously assembling the base 12.

[0085] Specifically, the base 12 adopts a split structure, that is, it includes a plurality of components.

[0086] For example, the assembly of the base 12 is performed synchronously while the upper knife seat 14 is installed to the upper crankshaft 13 and the lower knife seat 15 is installed to the lower crankshaft 19.

[0087] In this way, the assembly operation can be performed at multiple positions respectively, which can speed up the assembly progress and improve the assembly efficiency.

[0088] As shown in Figure 6 Optionally, the position fixing of the two stands 11 comprises: arranging a stand support structure 22 to support the stand 11.

[0089] That is, the position fixing of the stand 11 is achieved by supporting the stand 11 through the stand support structure 22, which can use the gravity of the stand 11 to keep its position fixed, so as to facilitate the subsequent alignment of the stand 11. Of course, when necessary, the position of the stand 11 in one or more directions can be limited by a limiting structure, and the same applies to the upper knife seat 14 and the lower knife seat 15.

[0090] It should be understood that the specific structure of the upper tool holder support structure 20, the lower tool holder support structure 21 and the stand support structure 22 is not limited, for example, each support structure is formed by combining a square box, a pad iron and the like, which will not be described in detail here.

[0091] In the above embodiment, the mounting of the upper tool holder 14 to the upper crankshaft 13 and the mounting of the lower tool holder 15 to the lower crankshaft 19 includes:

[0092] The upper tool holder body 141 and the upper bearing gland 142 are clamp mounted on the upper crankshaft 13, and the lower tool holder body 151 and the lower bearing gland 152 are clamp mounted on the lower crankshaft 19 at the same time.

[0093] In this way, the assembly process of the flying shear machine can be accelerated to a certain extent, which will not be described in detail here.

[0094] Although the present application is disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A method for assembling a flying shear machine, characterized in that, The flying shear machine assembly method includes: The upper tool holder (14) is installed on the upper crankshaft (13), and the lower tool holder (15) is installed on the lower crankshaft (19). The upper tool holder (14) includes an upper tool holder body (141) and an upper bearing cap (142), and the lower tool holder (15) includes a lower tool holder body (151) and a lower bearing cap (152). Position the upper tool holder (14) and the lower tool holder (15) so that the axes of the upper crankshaft (13) and the lower crankshaft (19) are parallel in the first horizontal direction, and the center distance between the upper crankshaft (13) and the lower crankshaft (19) meets the preset distance, which is consistent with the distance between the two mounting holes on the stand (11) for mounting the upper crankshaft (13) and the lower crankshaft (19); The two uprights (11) are assembled to the upper crankshaft (13) and the lower crankshaft (19), and the positions of the two uprights (11) are fixed. Connect the two ends of the crossbeam to the two uprights (11) respectively, straighten the two uprights (11) and make the upper crankshaft (13) and the lower crankshaft (19) distributed at intervals in the vertical direction.

2. The flying shear assembly method according to claim 1, characterized in that, The positioning of the upper tool holder (14) and the lower tool holder (15) includes: setting an upper tool holder support structure (20) to support the upper tool holder (14), and setting a lower tool holder support structure (21) to support the lower tool holder (15).

3. The flying shear assembly method as described in claim 2, characterized in that, In the first horizontal direction, the upper blade holder support structure (20) supports the upper blade holder (14) at at least two points. When the upper blade holder (14) is supported by the upper blade holder support structure (20), the first surface of the upper bearing cover (142) facing away from the upper blade holder body (141) is arranged downwards. The first surface is the upper surface of the upper bearing cover (142) when the flying shear is in normal use. And / or, in the first horizontal direction, the lower blade holder support structure (21) supports the lower blade holder (15) at at least two points. When the lower blade holder (15) is supported by the lower blade holder support structure (21), the second surface of the lower bearing cover (152) facing away from the lower blade holder body (151) is disposed downward; the second surface is the lower surface of the lower bearing cover (152) when the flying shear is in normal use.

4. The method for assembling a flying shear machine according to any one of claims 1 to 3, characterized in that, Before aligning the two uprights (11), the flying shear assembly method further includes: installing an upper blade holder linkage mechanism (16), wherein one end of the upper blade holder linkage mechanism (16) is connected to the end of the upper blade holder body (141) away from the upper crankshaft (13), and the other end is connected to the upright (11).

5. The flying shear assembly method according to claim 4, characterized in that, The crossbeam includes an upper crossbeam (18), and connecting the two ends of the crossbeam to the two uprights (11) respectively includes: after installing the upper knife holder linkage mechanism (16), connecting the two ends of the upper crossbeam (18) to the two uprights (11) respectively.

6. The flying shear assembly method according to claim 4, characterized in that, The installation of the upper tool holder linkage mechanism (16) includes: releasing the position positioning of the upper tool holder (14), adjusting the position of the upper tool holder (14), and installing the upper tool holder linkage mechanism (16).

7. The method for assembling a flying shear machine according to any one of claims 1 to 3, characterized in that, The process of aligning the two uprights (11) includes: hoisting the uprights (11) and adjusting their position so that the two uprights (11) are supported on the base (12), and connecting the uprights (11) and the base (12).

8. The flying shear assembly method according to claim 7, characterized in that, After the connection operation between the stand (11) and the base (12) is performed, the flying shear assembly method further includes: installing a lower blade holder linkage mechanism (17), one end of which is connected to the end of the lower blade holder body (151) away from the lower crankshaft (19), and the other end is connected to the base (12).

9. The flying shear assembly method according to claim 7, characterized in that, Before aligning the two uprights (11), the flying shear assembly method further includes simultaneously assembling the base (12).

10. The flying shear assembly method as described in claim 1, characterized in that, The method of fixing the positions of the two uprights (11) includes: setting up an upright support structure (22) to support the uprights (11); And / or, the mounting of the upper tool holder (14) to the upper crankshaft (13) and the mounting of the lower tool holder (15) to the lower crankshaft (19) includes: The upper tool holder body (141) and the upper bearing cap (142) are clamped and installed on the upper crankshaft (13), and the lower tool holder body (151) and the lower bearing cap (152) are clamped and installed on the lower crankshaft (19) simultaneously.

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