A universal joint shaft clamping device for replacing roll systems with different roll pitches on a straightening machine

Abstract

The present invention discloses a universal joint shaft clamping device for replacing roll systems with different roll pitches on a straightening machine, comprising: an upper clamping assembly, a lower clamping assembly, a middle clamping assembly, and a lifting drive assembly. The upper clamping assembly includes: an upper crossbeam, an upper moving mechanism, and a plurality of upper clamping blocks; the lower clamping assembly is arranged below the upper clamping assembly, and the lower clamping assembly includes: a lower crossbeam, a lower moving mechanism, and a plurality of lower clamping blocks; the middle clamping assembly is arranged between the upper clamping assembly and the lower clamping assembly, and the middle clamping assembly includes: an intermediate crossbeam, a first clamping block, and a second clamping block; the lifting drive assembly is arranged below the lower crossbeam, and the lifting drive assembly is configured to drive the lower crossbeam to move up and down. Thus, the replacement and installation of roll systems with different roll pitches can be conveniently achieved. Compared with the prior art, it is not necessary to disassemble the entire device. At the same time, the roll pitch can be quickly adjusted according to requirements, which can effectively save time and does not require the assistance of other equipment, saving time and effort.

Description

Technical Field

[0001] The present invention relates to the technical field of straightening machines, and particularly to a universal joint shaft clamping device for replacing roll systems with different roll pitches on a straightening machine. Background Art

[0002] Straightening machine equipment is a common finishing equipment on the steel rolling production line. For common steel plate defects such as warping, convexity, and edge waves, through repeated bending and straightening, the quality can be effectively improved. For steel plate straightening, the straightening rolls with different center distances have different straightening effects on steel plates with different thicknesses. To improve the straightening ability of the straightening machine, a set of straightening machines can be equipped with multiple sets of roll systems to cover steel plates of various thicknesses and models. In addition, after the straightening machine is used for a period of time, the straightening rolls are severely worn, and it is also necessary to replace and repair the straightening rolls in the roll system to ensure the straightening effect on the steel plates.

[0003] Currently, in existing straightening machines, each set of straightening rolls needs to be equipped with a corresponding set of universal joint shaft clamping devices and a set of transmission devices. However, when it is necessary to replace the roll system with a different roll pitch on a straightening machine, since each set of universal joint shaft clamping devices can only be adapted to a roll system with one roll pitch and cannot change the roll pitch by itself, it is necessary to disassemble the entire roll system and then install it on the universal joint shaft clamping device adapted to the new roll pitch, and then it can be installed on the straightening machine. Such a replacement method requires a large amount of time cost, affects production efficiency, and also requires preparing corresponding replacement equipment, resulting in a large replacement cost and a large amount of funds being spent. Summary of the Invention

[0004] To solve some or all of the technical problems existing in the above-mentioned prior art, the present invention provides a universal joint shaft clamping device for replacing roll systems with different roll pitches on a straightening machine.

[0005] The technical solution of the present invention is as follows:

[0006] The present invention provides a universal joint shaft clamping device for replacing roll systems with different roll pitches on a straightening machine, including:

[0007] An upper clamping assembly, the upper clamping assembly includes: an upper crossbeam, an upper moving mechanism, and a plurality of upper clamping blocks. The upper moving mechanism is arranged on the upper crossbeam and is connected to the plurality of upper clamping blocks. The plurality of upper clamping blocks are arranged at the bottom of the upper crossbeam and can move along the length direction of the upper crossbeam. The upper moving mechanism is configured to drive the plurality of upper clamping blocks to move;

[0008] Lower clamping assembly, the lower clamping assembly is arranged below the upper clamping assembly, and the lower clamping assembly includes: a lower cross beam, a lower moving mechanism and a plurality of lower clamping blocks. The length direction of the lower cross beam is the same as that of the upper cross beam. The lower moving mechanism is arranged on the lower cross beam and connected to the plurality of lower clamping blocks. The plurality of lower clamping blocks are arranged on the top of the lower cross beam and can move along the length direction of the lower cross beam. The lower moving mechanism is configured to drive the plurality of lower clamping blocks to move;

[0009] Middle clamping assembly, the middle clamping assembly is arranged between the upper clamping assembly and the lower clamping assembly. The middle clamping assembly includes: an intermediate cross beam, a first clamping block and a second clamping block. The intermediate cross beam is in the same direction as the upper cross beam. The first clamping block is movably arranged on the top of the intermediate cross beam along the length direction of the intermediate cross beam and corresponds to the upper clamping block one by one. The second clamping block is movably arranged on the bottom of the intermediate cross beam along the length direction of the intermediate cross beam and corresponds to the lower clamping block one by one. Moreover, lifting drive mechanisms are respectively arranged at both ends of the intermediate cross beam along its length direction. Both ends of the intermediate cross beam are respectively connected to both ends of the upper cross beam via the upper lifting drive mechanism and are respectively connected to both ends of the lower cross beam via the lower lifting drive mechanism;

[0010] Lifting drive assembly, the lifting drive assembly is arranged below the lower cross beam. The lifting drive assembly is configured to drive the lower cross beam to move up and down. The lifting drive assembly includes: a fixed seat, a lift and a hydraulic motor. Among them, the top end of the lift is connected to the bottom of the lower cross beam, the lift is connected to the fixed seat, and the hydraulic motor is in transmission connection with the lift. The hydraulic motor can output a rotational driving force to the lift so that the lift drives the lower cross beam to move up and down;

[0011] The upper clamping assembly and the lower clamping assembly also respectively include a slide pin assembly seat. One end of the slide pin assembly seat is provided with a square pin shaft, and the other end can be respectively connected to the upper clamping block or the lower clamping block. The upper cross beam and the lower cross beam are respectively provided with positioning sliding grooves adapted to the square pin shaft. The square pin shaft of the slide pin assembly seat is movably arranged in the positioning sliding groove.

[0012] Optionally, the upper moving mechanism includes: an upper transverse hydraulic cylinder, an upper link mechanism and an upper linear guide rail. Among them, the upper linear guide rail extends along the length direction of the upper cross beam and is arranged at the bottom of the upper cross beam. The plurality of upper clamping blocks are movably arranged on the upper linear guide rail. The plurality of upper clamping blocks are connected to the upper link mechanism. The upper transverse hydraulic cylinder is configured to drive the upper link mechanism to move so as to drive the plurality of upper clamping blocks to move along the upper linear guide rail.

[0013] Optionally, the upper link mechanism includes a plurality of cross-hinged links connected in sequence end to end. The upper clamping block is connected to the hinge connection of the cross-hinged links, and both ends of the upper transverse hydraulic cylinder are also respectively connected to the hinge connections of two of the cross-hinged links.

[0014] Optionally, the lower moving mechanism includes: a lower transverse hydraulic cylinder, a lower link mechanism, and a lower linear guide. Among them, the lower linear guide extends along the length direction of the lower cross beam and is arranged on the top of the lower cross beam. A plurality of the lower clamping blocks are movably arranged on the lower linear guide. The plurality of the lower clamping blocks are connected to the lower link mechanism. The lower transverse hydraulic cylinder is configured to drive the lower link mechanism to move so as to drive the plurality of the lower clamping blocks to move along the lower linear guide.

[0015] Optionally, the lower link mechanism includes a plurality of cross-hinged links connected in sequence end to end. The lower clamping block is connected to the hinge connection of the cross-hinged links, and both ends of the lower transverse hydraulic cylinder are also respectively connected to the hinge connections of two of the cross-hinged links.

[0016] Optionally, an upper sliding groove is provided on the top of the middle cross beam, and a lower sliding groove is provided on the bottom of the middle cross beam. Both the upper sliding groove and the lower sliding groove extend along the length direction of the middle cross beam. The first clamping block is movably arranged in the upper sliding groove, and the second clamping block is movably arranged in the lower sliding groove.

[0017] Optionally, the middle cross beam is split into an independent left cross beam and a right cross beam along its width direction. The end of the left cross beam away from the right cross beam is provided with a first rotating shaft extending along the height direction of the middle cross beam. The left cross beam can rotate around the first rotating shaft. The end of the right cross beam away from the left cross beam is provided with a second rotating shaft extending along the height direction of the middle cross beam. The right cross beam can rotate around the second rotating shaft.

[0018] Optionally, a first stepped surface is provided at one end of the left cross beam close to the right cross beam, and a second stepped surface is provided at one end of the right cross beam close to the left cross beam. The left cross beam and the right cross beam can rotate to make the first stepped surface and the second stepped surface engage with each other.

[0019] The main advantages of the technical solution of the present invention are as follows:

[0020] In the universal coupling clamping device of the present invention, by respectively arranging an upper moving mechanism and a lower moving mechanism on the upper crossbeam and the lower crossbeam, the upper clamping block and the lower clamping block can be conveniently and quickly adjusted in position. At the same time, a first clamping block and a second clamping block corresponding to the upper clamping block and the lower clamping block respectively are arranged on the middle crossbeam, which can conveniently realize the replacement and installation of different roll pitch roll systems. Compared with the prior art, the device in this embodiment does not need to disassemble the whole device, and at the same time, the roll pitch can be quickly adjusted according to requirements, which can effectively save time and does not need to rely on other equipment, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0022] Figure 1 FIG. is a schematic diagram of the overall structure of a universal coupling clamping device for replacing different roll pitch roll systems of a straightening machine according to an embodiment of the present invention;

[0023] Figure 2 is Figure 1 a schematic diagram of the structure of the upper clamping block in the universal coupling clamping device for replacing different roll pitch roll systems of the straightening machine shown in ;

[0024] Figure 3 is Figure 1 a schematic diagram of the structure of the first clamping block in the universal coupling clamping device for replacing different roll pitch roll systems of the straightening machine shown in ;

[0025] Figure 4 is Figure 1 a schematic diagram of the structure of the sliding pin assembly seat in the universal coupling clamping device for replacing different roll pitch roll systems of the straightening machine shown in ;

[0026] Figure 5 is Figure 1 a schematic diagram of the structure of the upper crossbeam in the universal coupling clamping device for replacing different roll pitch roll systems of the straightening machine shown in ;

[0027] Figure 6 is Figure 5 a schematic diagram of another perspective of the upper crossbeam shown in ;

[0028] Figure 7 is Figure 1 a schematic diagram of the structure of the lower crossbeam in the universal coupling clamping device for replacing different roll pitch roll systems of the straightening machine shown in ;

[0029] Figure 8 is Figure 7 a schematic diagram of another perspective of the lower crossbeam shown in ;

[0030] Figure 9 is Figure 1 A schematic structural view of the upper connecting rod mechanism in the universal joint shaft clamping device for replacing the roll systems with different roll pitches of a straightening machine as shown in

[0031] Figure 10 is Figure 9 A schematic structural view of another perspective of the upper connecting rod mechanism as shown in

[0032] Figure 11 is Figure 1 A schematic structural view of the intermediate cross beam in the universal joint shaft clamping device for replacing the roll systems with different roll pitches of a straightening machine as shown in

[0033] Figure 12 is Figure 11 A transverse sectional view of the intermediate cross beam as shown in

[0034] Figure 13 is Figure 1 A schematic structural view of another perspective of the intermediate cross beam in the universal joint shaft clamping device for replacing the roll systems with different roll pitches of a straightening machine as shown in

[0035] Figure 14 is Figure 13 A schematic structural view of the left cross beam in the intermediate cross beam as shown in

[0036] Figure 15 is Figure 13 A schematic structural view of the right cross beam in the intermediate cross beam as shown in

[0037] Explanation of reference numerals:

[0038] 110: upper cross beam; 111: upper mounting groove; 121: upper transverse shifting hydraulic cylinder; 122: upper connecting rod mechanism; 123: upper linear guide rail; 130: upper clamping block; 140: upper positioning track; 210: lower cross beam; 211: lower mounting groove; 221: lower transverse shifting hydraulic cylinder; 222: lower connecting rod mechanism; 223: lower linear guide rail; 230: lower clamping block; 240: lower positioning track; 310: intermediate cross beam; 311: left cross beam; 312: right cross beam; 313: upper sliding groove; 314: upper sliding rail; 315: lower sliding groove; 316: lower sliding rail; 320: first clamping block; 321: first sliding connection part; 322: first receiving part; 330: second clamping block; 331: second sliding connection part; 332: second receiving part; 340: upper lifting drive mechanism; 350: lower lifting drive mechanism; 410: sliding pin assembly seat; 411: square pin shaft; 511: fixed seat; 512: elevator; 513: hydraulic motor; 514: universal joint shaft; 515: coupling. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0040] The technical solutions provided by the embodiments of the present invention will be described in detail below with reference to the drawings.

[0041] In an embodiment according to the present invention, a universal joint shaft clamping device for replacing roll systems with different roll pitches of a straightening machine is provided. This device can be fixedly connected to the universal joint shaft of the transmission device during the process of replacing roll systems with different roll pitches of the straightening machine. After a new roll system is installed, the roll pitch can be conveniently adjusted according to actual installation requirements, effectively overcoming the drawback that the existing universal joint shaft clamping device cannot adjust the roll pitch. The following combines Figures 1 to 15 As shown, the universal joint shaft clamping device for replacing roll systems with different roll pitches of the straightening machine in this embodiment will be further described.

[0042] Specifically, as Figure 1 shown, the universal joint shaft clamping device for replacing roll systems with different roll pitches of the straightening machine in this embodiment includes: an upper clamping assembly, a lower clamping assembly, a middle clamping assembly, and a lifting drive assembly.

[0043] Among them, the upper clamping assembly includes: an upper cross beam 110, an upper moving mechanism, and a plurality of upper clamping blocks 130. The upper moving mechanism is arranged on the upper cross beam 110 and connected to the plurality of upper clamping blocks 130. The plurality of upper clamping blocks 130 are arranged at the bottom of the upper cross beam 110 and can move along the length direction of the upper cross beam 110. The upper moving mechanism is configured to drive the plurality of upper clamping blocks 130 to move.

[0044] It can be understood that in this embodiment, the plurality of upper clamping blocks 130 are arranged at intervals in sequence along the length direction of the upper cross beam 110 and are located at the bottom of the upper cross beam 110. The upper moving mechanism is at least partially fixedly connected to the upper cross beam 110, and the upper moving mechanism can drive the plurality of upper clamping blocks 130 to move along the length direction of the upper cross beam 110.

[0045] The lower clamping assembly is arranged below the upper clamping assembly. The lower clamping assembly includes: a lower cross beam 210, a lower moving mechanism, and a plurality of lower clamping blocks 230. The length direction of the lower cross beam 210 is the same as that of the upper cross beam 110. The lower moving mechanism is arranged on the lower cross beam 210 and connected to the plurality of lower clamping blocks 230. The plurality of lower clamping blocks 230 are arranged on the top of the lower cross beam 210 and can move along the length direction of the lower cross beam 210. The lower moving mechanism is configured to drive the plurality of lower clamping blocks 230 to move.

[0046] It can be understood that the lower clamping assembly is located below the upper clamping assembly in the vertical direction. And symmetrically with the upper clamping assembly, the plurality of lower clamping blocks 230 are arranged at intervals in sequence along the length direction of the lower cross beam 210 and are located on the top of the lower cross beam 210. The lower moving mechanism is at least partially fixedly connected to the lower cross beam 210, and the lower moving mechanism can drive the plurality of lower clamping blocks 230 to move along the length direction of the lower cross beam 210.

[0047] The middle clamping assembly is arranged between the upper clamping assembly and the lower clamping assembly. The middle clamping assembly includes: an intermediate cross beam 310, a first clamping block 320, and a second clamping block 330. The intermediate cross beam 310 is in the same direction as the upper cross beam 110. The first clamping block 320 is movably arranged on the top of the intermediate cross beam 310 along the length direction of the intermediate cross beam 310 and corresponds to the upper clamping block 130 one by one. The second clamping block 330 is movably arranged on the bottom of the intermediate cross beam 310 along the length direction of the intermediate cross beam 310 and corresponds to the lower clamping block 230 one by one. And lifting drive mechanisms 340 and lower lifting drive mechanisms 350 are respectively arranged at both ends of the intermediate cross beam 310 along its length direction. Both ends of the intermediate cross beam 310 are respectively connected to both ends of the upper cross beam 110 via the lifting drive mechanisms 340, and are respectively connected to both ends of the lower cross beam 210 via the lower lifting drive mechanisms 350.

[0048] It can be understood that in the vertical direction, the upper clamping assembly, the middle clamping assembly, and the lower clamping assembly are arranged in sequence, and the length directions of the upper clamping assembly, the middle clamping assembly, and the lower clamping assembly are the same. At the same time, the first clamping blocks 320 corresponding to the upper clamping blocks 130 and the second clamping blocks 330 corresponding to the lower clamping blocks 230 are respectively arranged on the upper and lower sides of the intermediate cross beam 310. In addition, the intermediate cross beam 310 can adjust the distance between it and the upper cross beam 110 via the lifting drive mechanisms 340, and the intermediate cross beam 310 can also adjust the distance between it and the lower cross beam 210 via the lower lifting drive mechanisms 350.

[0049] Exemplarily, the lifting drive mechanisms 340 and the lower lifting drive mechanisms 350 can be lifting hydraulic cylinders respectively.

[0050] The lifting drive assembly is arranged below the lower cross beam 210. The lifting drive assembly is configured to drive the lower cross beam 210 to move up and down.

[0051] It can be understood that the lifting drive assembly can drive the lower crossbeam 210 to move up and down to adjust the position of the lower crossbeam 210 in the vertical direction.

[0052] In this embodiment, when it is necessary to adjust the roll system on the straightening machine, the lifting drive assembly can adjust the lower crossbeam 210 to an appropriate position, such as the position of the lower roll system. Then, by means of the upper lifting drive mechanism 340 and the lower lifting drive mechanism 350, the position of the middle crossbeam 310 and the upper crossbeam 110 are adjusted. During the adjustment process, the upper clamping block 130 and the first clamping block 320, as well as the lower clamping block 230 and the second clamping block 330, respectively clamp the universal joint shaft of the transmission device, so that the upper crossbeam 110 reaches a predetermined fixed position, such as the position of the upper roll system. Then, the original roll system is disengaged and a new roll system is installed.

[0053] After that, according to the installation requirements of the roll pitch, the roll pitch of the new roll system is adjusted by means of the upper moving mechanism and the lower moving mechanism respectively. After adjusting to the required position, the new roll system is installed on the straightening machine.

[0054] Thus, when adjusting the roll system on the straightening machine by means of the device in this embodiment, the replacement and installation of roll systems with different roll pitches can be conveniently realized. Compared with the prior art, the device in this embodiment does not need to disassemble the whole device, and at the same time, the roll pitch can be quickly adjusted according to the requirements, which can effectively save time and does not need to rely on other equipment, saving time and effort.

[0055] In this embodiment, the structures of the upper clamping block 130 and the lower clamping block 230 are the same. As Figure 2 shown, both the upper clamping block 130 and the lower clamping block 230 are provided with arc support surfaces for receiving the universal joint shaft of the transmission device. Similarly, the structures of the first clamping block 320 and the second clamping block 330 are the same. As Figure 3 shown, both the first clamping block 320 and the second clamping block 330 are also provided with arc support surfaces for receiving the universal joint shaft of the transmission device.

[0056] Furthermore, in order to achieve precise positioning of the new roll pitch, in this embodiment, as Figure 1 and Figure 4 shown, the upper clamping assembly and the lower clamping assembly further respectively include slide pin assembly seats 410. One end of the slide pin assembly seat 410 is provided with square pin shafts 411, and the other end can be fixedly connected with the upper clamping block 130 or the lower clamping block 230 respectively. The upper crossbeam 110 and the lower crossbeam 210 are respectively provided with positioning sliding grooves adapted to the square pin shafts 411, and the square pin shafts 411 of the slide pin assembly seats 410 are movably arranged in the positioning sliding grooves.

[0057] In actual use, under the precise positioning of the positioning chute, and since the square pin shaft 411 is precisely clamped in the positioning chute, when the square pin shaft 411 moves in the positioning chute, it can effectively position the upper clamping block 130 and the lower clamping block 230, ensuring the position accuracy of the upper clamping block 130 and the lower clamping block 230.

[0058] As Figure 1 shown, the upper moving mechanism in this embodiment includes: an upper transverse hydraulic cylinder 121, an upper link mechanism 122, and an upper linear guide rail 123. Among them, the upper linear guide rail 123 extends along the length direction of the upper cross beam 110 and is arranged at the bottom of the upper cross beam 110. A plurality of upper clamping blocks 130 are movably arranged on the upper linear guide rail 123. The plurality of upper clamping blocks 130 are connected to the upper link mechanism 122. The upper transverse hydraulic cylinder 121 is configured to drive the upper link mechanism 122 to move, so as to drive the plurality of upper clamping blocks 130 to move along the upper linear guide rail 123.

[0059] Thus, with the help of the upper linear guide rail 123, it can be ensured that the upper clamping block 130 can accurately move along the length direction of the upper cross beam 110. Moreover, one end of the upper transverse hydraulic cylinder 121 can be fixed to the upper cross beam 110, and the other end is connected to the upper link mechanism 122. Therefore, during the process of the upper transverse hydraulic cylinder 121 driving the upper link mechanism 122 to move, it can drive the plurality of upper clamping blocks 130 to move.

[0060] Exemplarily, as Figure 5 and Figure 6 shown, an upper mounting groove 111 is provided on the side of the upper cross beam 110. The upper transverse hydraulic cylinder 121 can be fixedly connected to the upper cross beam 110 by means of the upper mounting groove 111.

[0061] In this embodiment, the upper link mechanism 122 needs to drive the plurality of upper clamping blocks 130 to move under the drive of the upper transverse hydraulic cylinder 121. For this, as Figure 9 and Figure 10 shown, the upper link mechanism 122 can include a plurality of cross-hinged type links connected in sequence end to end. The upper clamping block 130 is connected to the hinge connection of the cross-hinged type link. Both ends of the upper transverse hydraulic cylinder 121 are also respectively connected to the hinge connections of two cross-hinged type links.

[0062] Thus, during the process of the upper transverse hydraulic cylinder 121 driving the plurality of sequentially connected cross-hinged type links to move, the plurality of upper clamping blocks 130 can also move synchronously with the cross-hinged type links.

[0063] Optionally, V-shaped articulated links are respectively arranged at both ends of a plurality of successively connected cross-articulated links. Both ends of the V-shaped articulated links can also be connected to both ends of adjacent cross-articulated links. Moreover, an upper clamping block 130 can also be connected to the articulated joints of the V-shaped articulated links.

[0064] In an alternative embodiment, as Figure 9 and Figure 10 shown, the number of cross-articulated links is 3, and 2 V-shaped articulated links are respectively connected to both ends thereof. Thus, a total of 5 upper clamping blocks 130 are connected to the cross-articulated links and the V-shaped articulated links. Moreover, in order to accurately position the upper clamping blocks 130, the 5 upper clamping blocks 130 can be respectively connected to the cross-articulated links and the V-shaped articulated links through 5 slide pin mounting seats 410.

[0065] Correspondingly, 5 first clamping blocks 320 are arranged at the top of the middle cross beam 310, and the 5 first clamping blocks 320 are respectively arranged in one-to-one correspondence with the 5 upper clamping blocks 130.

[0066] Similarly, as Figure 1 shown, the lower moving mechanism includes: a lower cross-moving hydraulic cylinder 221, a lower link mechanism 222, and a lower linear guide 223. Among them, the lower linear guide 223 extends along the length direction of the lower cross beam 210 and is arranged on the top of the lower cross beam 210. A plurality of lower clamping blocks 230 are movably arranged on the lower linear guide 223. The plurality of lower clamping blocks 230 are connected to the lower link mechanism 222. The lower cross-moving hydraulic cylinder 221 is configured to drive the lower link mechanism 222 to move so as to drive the plurality of lower clamping blocks 230 to move along the lower linear guide 223.

[0067] Thus, by means of the lower linear guide 223, it can be ensured that the lower clamping blocks 230 can accurately move along the length direction of the lower cross beam 210. Moreover, one end of the lower cross-moving hydraulic cylinder 221 can be fixed to the lower cross beam 210, and the other end is connected to the lower link mechanism 222. During the process of the lower cross-moving hydraulic cylinder 221 driving the lower link mechanism 222 to move, the plurality of lower clamping blocks 230 can be driven to move.

[0068] Exemplarily, as Figure 7 and Figure 8 shown, a lower mounting groove 211 is arranged on the side of the lower cross beam 210, and the lower cross-moving hydraulic cylinder 221 can be fixedly connected to the lower cross beam 210 by means of the lower mounting groove 211.

[0069] In this embodiment, the lower link mechanism 222 needs to move a plurality of lower clamping blocks 230 under the drive of the lower transverse hydraulic cylinder 221. Similarly, the lower link mechanism 222 includes a plurality of cross-hinged links connected in sequence end to end. The lower clamping blocks 230 are connected to the hinge joints of the cross-hinged links, and both ends of the lower transverse hydraulic cylinder 221 are also respectively connected to the hinge joints of two cross-hinged links.

[0070] Thus, during the process of the lower transverse hydraulic cylinder 221 driving the plurality of sequentially connected cross-hinged links to move, the plurality of lower clamping blocks 230 can also move synchronously with the cross-hinged links.

[0071] Optionally, V-shaped hinged links can be respectively arranged at both ends of the plurality of sequentially connected cross-hinged links. Both ends of the V-shaped hinged links can also be connected to both ends of adjacent cross-hinged links. Moreover, a lower clamping block 230 can also be connected to the hinge joint of the V-shaped hinged link.

[0072] In an alternative embodiment, the number of cross-hinged links is 2, and 2 V-shaped hinged links are respectively connected to both ends thereof. Thus, a total of 4 lower clamping blocks 230 are connected to the cross-hinged links and the V-shaped hinged links. Moreover, in order to accurately position the lower clamping blocks 230, the 4 lower clamping blocks 230 can be respectively connected to the cross-hinged links and the V-shaped hinged links through 4 slide pin mounting seats 410.

[0073] Correspondingly, 4 second clamping blocks 330 are arranged at the bottom of the middle cross beam 310, and the 4 second clamping blocks 330 are respectively arranged in one-to-one correspondence with the 4 lower clamping blocks 230.

[0074] In yet another alternative embodiment, as Figure 1 shown, two lower clamping blocks 230 fixedly connected to the lower cross beam 210 can also be respectively arranged at both ends of the movable lower clamping block 230. The two lower clamping blocks 230 can be fixedly arranged at the top of the lower cross beam 210 by means of bolt connection or welding. Correspondingly, two second clamping blocks 330 corresponding to the fixed lower clamping blocks 230 are also respectively fixedly arranged at both ends of the middle cross beam 310.

[0075] Thus, better straightening effects can be achieved by means of the lower clamping blocks 230 and the second clamping blocks 330 fixedly arranged at both ends respectively.

[0076] Furthermore, the first clamping block 320 and the second clamping block 330 need to be movably arranged at the two ends of the middle beam 310 respectively. As an implementation method, an upper slide groove can be arranged at the top of the middle beam 310, and a lower slide groove can be arranged at the bottom of the middle beam 310. Both the upper slide groove and the lower slide groove extend along the length direction of the middle beam 310. The first clamping block 320 is movably arranged in the upper slide groove, and the second clamping block 330 is movably arranged in the lower slide groove.

[0077] Therefore, with the help of the limiting effect of the sliding groove, it can be ensured that the first clamping block 320 and the second clamping block 330 can be stably and movably arranged on the middle cross beam 310.

[0078] Specifically, if Figure 11 and Figure 12 As shown, the top of the middle crossbeam 310 is provided with an upper slide groove 313 extending along its length direction and recessed inward, and an upper slide rail 314 extending along the length direction of the middle crossbeam 310 is provided in the upper slide groove 313. The upper slide rail 314 can be fixedly connected to the middle crossbeam 310 via bolts, and the upper slide rail 314 is provided with a protruding structure on the side of the width direction of the middle crossbeam 310. The bottom of the first clamping block 320 is provided with a recessed cavity, and the protruding structure can be accommodated in the recessed cavity, and the shape of the protruding structure matches the inner wall of the recessed cavity. Therefore, the first clamping block 320 can be slidably connected with the upper slide rail 314, and can move in the upper slide groove 313 along the length direction of the upper slide rail 314.

[0079] Optionally, the first clamping block 320 may include a first sliding connection portion 321 and a first receiving portion 322, the recessed cavity is arranged at the bottom of the first sliding connection portion 321, the arc support surface for receiving the universal joint shaft of the transmission device is arranged at the top of the first receiving portion 322, and the first sliding connection portion 321 and the first receiving portion 322 may be fixed together by bolts. In actual use, when one of the components is damaged, it can be easily replaced.

[0080] Similarly, the bottom of the middle cross beam 310 is provided with a lower groove 315 extending along its length and recessed inward, and a lower rail 316 extending along the length of the middle cross beam 310 is provided in the lower groove 315. The lower rail 316 can be fixedly connected to the middle cross beam 310 via bolts, and the lower rail 316 is also provided with a protruding structure on the side of the width direction of the middle cross beam 310. The bottom of the second clamping block 330 is provided with a recessed cavity, and the protruding structure can be accommodated in the recessed cavity, and the shape of the protruding structure matches the inner wall of the recessed cavity. Therefore, the second clamping block 330 can be slidably connected with the lower rail 316, and can move in the lower groove 315 along the length of the lower rail 316.

[0081] Optionally, the second clamping block 330 may include a second sliding connection portion 331 and a second receiving portion 332. A recessed cavity is provided at the bottom of the second sliding connection portion 331, and an arc support surface for receiving the universal joint shaft of the transmission device is provided at the top of the second receiving portion 332. The second sliding connection portion 331 and the second receiving portion 332 may be fixed together by bolts. In actual use, when one of the components is damaged, it can be conveniently replaced.

[0082] Furthermore, in order to improve the load-bearing capacity, the number of the upper sliding grooves 313 and the lower sliding grooves 315 is at least two, and at least two upper sliding grooves 313 and at least two lower sliding grooves 315 may be parallel to each other and arranged side by side.

[0083] For example, in the present embodiment, as Figure 12 and Figure 13 shown, the number of the upper sliding grooves 313 and the lower sliding grooves 315 is two. The two upper sliding grooves 313 are parallel to each other and arranged side by side at the top of the middle cross beam 310, and the two lower sliding grooves 315 are parallel to each other and arranged side by side at the bottom of the middle cross beam 310.

[0084] The middle cross beam 310 in the present embodiment can be split into two independent and rotatable parts. Specifically, as Figure 1 、 Figure 11 and Figure 13 shown, the middle cross beam 310 is split into an independent left cross beam 311 and a right cross beam 312 along its width direction. A first rotating shaft extending along the height direction of the middle cross beam 310 is provided at the end of the left cross beam 311 away from the right cross beam 312, and the left cross beam 311 can rotate around the first rotating shaft. A second rotating shaft extending along the height direction of the middle cross beam 310 is provided at the end of the right cross beam 312 away from the left cross beam 311, and the right cross beam 312 can rotate around the second rotating shaft.

[0085] Thus, when the roll system needs to be replaced, the left cross beam 311 and the right cross beam 312 can be made to approach each other and be in a collinear closed position, so that the first clamping block 320 and the second clamping block 330 can conveniently fix the universal joint shaft of the transmission device.

[0086] Exemplarily, as Figure 13 shown, rotating connection seats may be respectively provided on the sides of the left cross beam 311 and the right cross beam 312, and the rotating connection seats may be respectively connected to a rotating drive device, such as a rotating cylinder, so as to realize the rotating action.

[0087] It can be understood that in this embodiment, the rotatable intermediate crossbeam 310 is provided for the convenience of not using the spindle clamping device. When the straightening machine is performing straightening normally, it is only necessary to open the intermediate crossbeam 310 to the left and right sides respectively, which is labor-saving and time-saving in operation.

[0088] In an alternative embodiment, to ensure that the left crossbeam 311 and the right crossbeam 312 can be effectively joined, as Figure 14 and Figure 15 shown, a first stepped surface is provided at one end of the left crossbeam 311 close to the right crossbeam 312, and a second stepped surface is provided at one end of the right crossbeam 312 close to the left crossbeam 311. The left crossbeam 311 and the right crossbeam 312 can be rotated until the first stepped surface and the second stepped surface are joined to each other.

[0089] Exemplarily, the first stepped surface includes a first joining surface perpendicular to the thickness direction of the left crossbeam 311, and the second stepped surface includes a second joining surface perpendicular to the thickness direction of the right crossbeam 312. When the left crossbeam 311 and the right crossbeam 312 reach the closed position simultaneously, the first joining surface can be mutually attached to the second joining surface. Thus, it can be ensured that the left crossbeam 311 and the right crossbeam 312 reach the required positions simultaneously, and moreover, when clamping the universal joint spindle of the clamping transmission device, sufficient clamping force can be guaranteed.

[0090] In addition, to ensure that the lower crossbeam 210 can accurately reach the required position of the lower roll system, in this embodiment, as Figure 1 shown, the lifting drive assembly includes: a fixed seat 511, a lift 512, and a hydraulic motor 513. Among them, the top end of the lift 512 is connected to the bottom of the lower crossbeam 210, the bottom end of the lift 512 is connected to the fixed seat 511, and the hydraulic motor 513 is in transmission connection with the lift 512. The hydraulic motor 513 can output a rotational driving force to the lift 512 so that the lift 512 drives the lower crossbeam 210 to move up and down.

[0091] In actual use, the fixed seat 511 can be set at a fixed position such as on the machine table. After the hydraulic motor 513 is powered on, it can provide a rotational driving force to the lift 512, so that the movable part of the lift 512 can move up and down, thereby adjusting the position of the lower crossbeam 210 in the vertical direction until the lower crossbeam 210 can reach the position of the lower roll system.

[0092] Exemplarily, in this embodiment, two lifts 512 are provided at the bottom of the lower crossbeam 210, and the two lifts 512 are respectively located on both sides of the lower crossbeam 210 in the length direction. To enable one hydraulic motor 513 to drive the two lifts 512 to run synchronously, as Figure 1As shown, one side of the hydraulic motor 513 can be drivingly connected to one of the elevators 512 through a universal coupling shaft 514, and the other side can be drivingly connected to the other elevator 512 through a coupling 515.

[0093] In addition, in order to ensure that the upper crossbeam 110 and the lower crossbeam 210 can move along the predetermined tracks respectively, in the present embodiment, as Figure 1 shown, upper positioning tracks 140 are respectively provided on both sides of the upper crossbeam 110, and both ends of the upper crossbeam 110 are slidably connected to the upper positioning tracks 140 on both sides. Thus, during the up and down movement of the upper crossbeam 110, the movement direction of the upper crossbeam 110 can be effectively positioned by means of the upper positioning tracks 140. Correspondingly, lower positioning tracks 240 are respectively provided on both sides of the lower crossbeam 210, and both ends of the lower crossbeam 210 are slidably connected to the lower positioning tracks 240 on both sides. Thus, during the up and down movement of the lower crossbeam 210, the movement direction of the lower crossbeam 210 can be effectively positioned by means of the lower positioning tracks 240.

[0094] Thus, the universal coupling shaft clamping device for replacing the roll system with different roll pitches in the present embodiment has the following advantages:

[0095] In the universal coupling shaft clamping device of the present embodiment, by respectively providing an upper moving mechanism and a lower moving mechanism on the upper crossbeam and the lower crossbeam, the upper clamping block and the lower clamping block can be conveniently and quickly adjusted in position. At the same time, a first clamping block and a second clamping block corresponding to the upper clamping block and the lower clamping block respectively are provided on the middle crossbeam, and the replacement and installation of different roll pitch roll systems can be conveniently realized. Compared with the prior art, the device in the present embodiment does not need to disassemble the whole device, and at the same time, the roll pitch can be quickly adjusted according to requirements, which can effectively save time and does not need to rely on other equipment, saving time and effort.

[0096] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. In addition, "front", "rear", "left", "right", "upper" and "lower" in this article are all referred to the placement state shown in the drawings.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A universal joint shaft clamping device for replacing roll systems with different roll pitches of a straightening machine, characterized in that, Comprising: An upper clamping assembly, the upper clamping assembly comprising: an upper cross beam, an upper moving mechanism, and a plurality of upper clamping blocks, the upper moving mechanism being disposed on the upper cross beam and connected to the plurality of upper clamping blocks, the plurality of upper clamping blocks being disposed at the bottom of the upper cross beam and capable of moving along the length direction of the upper cross beam, the upper moving mechanism being configured to drive the plurality of upper clamping blocks to move; A lower clamping assembly, the lower clamping assembly being disposed below the upper clamping assembly, the lower clamping assembly comprising: a lower cross beam, a lower moving mechanism, and a plurality of lower clamping blocks, the length direction of the lower cross beam being the same as the length direction of the upper cross beam, the lower moving mechanism being disposed on the lower cross beam and connected to the plurality of lower clamping blocks, the plurality of lower clamping blocks being disposed at the top of the lower cross beam and capable of moving along the length direction of the lower cross beam, the lower moving mechanism being configured to drive the plurality of lower clamping blocks to move; A middle clamping assembly, the middle clamping assembly being disposed between the upper clamping assembly and the lower clamping assembly, the middle clamping assembly comprising: a middle cross beam, a first clamping block, and a second clamping block, the middle cross beam being in the same direction as the upper cross beam, the first clamping block being movably disposed along the length direction of the middle cross beam at the top of the middle cross beam and corresponding to the upper clamping blocks one by one, the second clamping block being movably disposed along the length direction of the middle cross beam at the bottom of the middle cross beam and corresponding to the lower clamping blocks one by one, and both ends of the middle cross beam along its length direction are respectively provided with an upper lifting drive mechanism and a lower lifting drive mechanism, both ends of the middle cross beam are respectively connected to both ends of the upper cross beam via the upper lifting drive mechanism, and are respectively connected to both ends of the lower cross beam via the lower lifting drive mechanism; A lifting drive assembly, the lifting drive assembly being disposed below the lower cross beam, the lifting drive assembly being configured to drive the lower cross beam to move up and down, the lifting drive assembly comprising: a fixed seat, a lift, and a hydraulic motor, wherein the top end of the lift is connected to the bottom of the lower cross beam, the bottom end of the lift is connected to the fixed seat, the hydraulic motor is in transmission connection with the lift, and the hydraulic motor is capable of outputting a rotational driving force to the lift so that the lift drives the lower cross beam to move up and down; The upper clamping assembly and the lower clamping assembly further respectively include a slide pin assembly seat, one end of the slide pin assembly seat is provided with a square pin shaft, and the other end can be respectively connected to the upper clamping block or the lower clamping block, the upper cross beam and the lower cross beam are respectively provided with positioning chute grooves adapted to the square pin shaft, and the square pin shaft of the slide pin assembly seat is movably disposed in the positioning chute grooves.

2. The universal joint shaft clamping device for replacing the roll system with different roll pitches of the straightening machine according to claim 1, characterized in that, The upper moving mechanism includes: an upper transverse hydraulic cylinder, an upper link mechanism, and an upper linear guide rail. Among them, the upper linear guide rail extends along the length direction of the upper cross beam and is arranged at the bottom of the upper cross beam. A plurality of the upper clamping blocks are movably arranged on the upper linear guide rail. The plurality of upper clamping blocks are connected to the upper link mechanism. The upper transverse hydraulic cylinder is configured to drive the upper link mechanism to move so as to drive the plurality of upper clamping blocks to move along the upper linear guide rail.

3. The universal joint shaft clamping device for replacing the roll system with different roll pitches of the straightening machine according to claim 2, characterized in that, The upper link mechanism includes a plurality of cross-hinged links connected in sequence end to end. The upper clamping block is connected to the hinge joint of the cross-hinged link. Both ends of the upper transverse hydraulic cylinder are also respectively connected to the hinge joints of two of the cross-hinged links.

4. The universal joint shaft clamping device for replacing the roll system with different roll pitches of a straightening machine according to claim 1, characterized in that, The lower moving mechanism includes: a lower transverse hydraulic cylinder, a lower link mechanism, and a lower linear guide rail. Among them, the lower linear guide rail extends along the length direction of the lower cross beam and is arranged at the top of the lower cross beam. A plurality of the lower clamping blocks are movably arranged on the lower linear guide rail. The plurality of lower clamping blocks are connected to the lower link mechanism. The lower transverse hydraulic cylinder is configured to drive the lower link mechanism to move so as to drive the plurality of lower clamping blocks to move along the lower linear guide rail.

5. The universal joint shaft clamping device for replacing the roll system with different roll pitches of a straightening machine according to claim 4, characterized in that, The lower link mechanism includes a plurality of cross-hinged links connected in sequence end to end. The lower clamping block is connected to the hinge joint of the cross-hinged link. Both ends of the lower transverse hydraulic cylinder are also respectively connected to the hinge joints of two of the cross-hinged links.

6. The universal joint shaft clamping device for replacing the roll system with different roll pitches of the straightening machine according to claim 1, characterized in that, An upper sliding groove is arranged at the top of the middle cross beam, and a lower sliding groove is arranged at the bottom of the middle cross beam. Both the upper sliding groove and the lower sliding groove extend along the length direction of the middle cross beam. The first clamping block is movably arranged in the upper sliding groove, and the second clamping block is movably arranged in the lower sliding groove.

7. The universal joint shaft clamping device for replacing the roll system with different roll pitches of the straightening machine according to claim 1, characterized in that, The middle cross beam is split into an independent left cross beam and a right cross beam along its width direction. A first rotating shaft extending along the height direction of the middle cross beam is arranged at the end of the left cross beam away from the right cross beam. The left cross beam can rotate around the first rotating shaft. A second rotating shaft extending along the height direction of the middle cross beam is arranged at the end of the right cross beam away from the left cross beam. The right cross beam can rotate around the second rotating shaft.

8. The universal joint shaft clamping device for replacing the roll system with different roll pitches of the straightening machine according to claim 7, characterized in that, A first stepped surface is arranged at one end of the left cross beam close to the right cross beam, and a second stepped surface is arranged at one end of the right cross beam close to the left cross beam. The left cross beam and the right cross beam can rotate to make the first stepped surface and the second stepped surface engage with each other.

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