Drum tooling

Abstract

The utility model discloses a kind of roller tool.Belongs to roller assembly technical field, the roller tool includes: two cross beams and multiple support frames, two cross beams are arranged in parallel and are all along first direction extension, support frame is movably connected with each cross beam in first direction, support frame has roller positioning slot, and roller positioning slot is located between two cross beams.According to the roller tool of the utility model embodiment, support frame is movably connected with each cross beam in first direction, support frame can be supported and positioned by its roller positioning slot winding roller, can be adjusted the position of each support frame in first direction, so that multiple winding roller does not need to carry out position secondary adjustment when being assembled with winding shaft, to improve the assembly efficiency of winding roller and winding shaft, reduce assembly time.

Description

Technical Field

[0001] This utility model relates to the field of roller assembly technology, and more specifically, to a roller tooling. Background Technology

[0002] During battery manufacturing, the electrode sheets are cut by a slitting device, and the cut electrode sheets are then wound up by multiple winding rollers on a winding shaft.

[0003] In related technologies, multiple take-up rollers on a take-up shaft need to be sequentially fitted onto the take-up shaft, and after fitting, the axial position of each take-up roller on the take-up shaft needs to be adjusted a second time, resulting in low assembly efficiency of the take-up shaft and multiple take-up rollers. Utility Model Content

[0004] This invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, this invention proposes a roller fixture that can improve the assembly efficiency of the take-up roller and the take-up shaft.

[0005] According to an embodiment of the present invention, a roller fixture includes: two crossbeams arranged in parallel and both extending along a first direction; and a plurality of support frames, each support frame being movably connected to each of the crossbeams in the first direction, the support frame having a roller positioning groove located between the two crossbeams.

[0006] According to the roller fixture of this utility model embodiment, the support frame is movably connected to each crossbeam in the first direction. The support frame can support and position the take-up roller through its roller positioning groove. By adjusting the position of each support frame in the first direction, multiple take-up rollers do not need to be adjusted in position when assembled with the take-up shaft, thereby improving the assembly efficiency of the take-up roller and the take-up shaft and reducing the assembly time.

[0007] According to some embodiments of this utility model, the roller positioning groove is a semi-circular groove or a slightly curved groove.

[0008] According to some embodiments of the present invention, the support frame includes: a first sub-support, the first sub-support being movably connected to each of the crossbeams in the first direction; a second sub-support, the second sub-support being movably connected to each of the crossbeams in the first direction; wherein the first sub-support and the second sub-support are mirror-symmetrical, and the first sub-support and the second sub-support together define the roller positioning groove.

[0009] According to some embodiments of the present invention, the first sub-support includes: a first connecting part, which is movably connected to one of the crossbeams in the first direction; a second connecting part, which is movably connected to another crossbeam in the first direction; and a support part, the two ends of which are respectively connected to the first connecting part and the second connecting part, wherein the support part is constructed as an arc plate with an L-shaped cross section.

[0010] According to some embodiments of the present invention, the roller fixture further includes: a plurality of locking mechanisms, each of the support frames is equipped with at least one of the locking mechanisms, and the support frame is selectively locked to the crossbeam through the locking mechanisms.

[0011] According to some embodiments of the present invention, the crossbeam is provided with a sliding groove extending along a first direction; the locking mechanism includes: a nut slider and a fastening bolt, the nut slider is disposed in the sliding groove, and the fastening bolt passes through the support frame and is threadedly engaged with the nut slider.

[0012] According to some embodiments of the present invention, the support frame is detachably connected to each of the crossbeams.

[0013] According to some embodiments of the present invention, the outer surface of the crossbeam has multiple scale lines, and the multiple scale lines are arranged at intervals along the first direction.

[0014] According to some embodiments of the present invention, at least one end of the two beams is flush in the first direction.

[0015] According to some embodiments of the present invention, the roller fixture further includes a lifting mechanism, wherein each of the crossbeams is mounted on the lifting mechanism, and the lifting mechanism is used to drive each of the crossbeams to move up and down synchronously.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a crossbeam according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of a roller fixture and multiple winding rollers according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of a roller fixture, multiple winding rollers, a winding shaft, and a large plate according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the first sub-support according to an embodiment of the present utility model; Figure 5 yes Figure 3 A bottom view.

[0018] Figure label: 1. Crossbeam; 11. Slide groove; 12. Scale line; Support frame 2; First sub-support 21; First connecting part 211; Second connecting part 212; Support part 213; Axial plate 2131; Radial plate 2132; Connecting hole 214; Second sub-support 22; Roller positioning groove 23; Locking mechanism 3; Roller fixture 10; 20mm take-up roller; 30mm take-up shaft; 40mm large plate. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The roller fixture 10 according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] Reference Figures 1-3 As shown, the roller fixture 10 includes two crossbeams 1 and multiple support frames 2. The two crossbeams 1 are arranged in parallel and both extend along a first direction. The support frames 2 are movably connected to each crossbeam 1 in the first direction. The support frames 2 have roller positioning grooves 23 located between the two crossbeams 1.

[0025] Specifically, the roller fixture 10 can be used for assembling the take-up shaft 30 with multiple take-up rollers 20. During assembly, the roller fixture 10 supports and positions the multiple take-up rollers 20, allowing the take-up shaft 30 to pass through each take-up roller 20 on the roller fixture 10. Then, the take-up shaft 30 expands radially or extends a locking pin to fix itself to the corresponding take-up roller 20. Finally, the roller fixture 10 separates from each take-up roller 20 to complete the assembly of the take-up shaft 30 with the multiple take-up rollers 20. The roller fixture 10 can support and position the multiple take-up rollers 20, and can also adjust the position of each take-up roller 20 to facilitate the assembly of the take-up shaft 30 with the multiple take-up rollers 20. After assembly, the take-up shaft 30 can drive the multiple take-up rollers 20 on it to rotate, and each take-up roller 20 can be used to wind up the corresponding electrode sheet.

[0026] The first direction can be Figures 1-3 In the left and right direction, both crossbeams 1 extend in the left and right direction and are parallel to each other. That is to say, the two crossbeams 1 are not collinear and can be set opposite each other in the front and back direction.

[0027] The support frame 2 has a roller positioning groove 23, which can be used to support and position the take-up roller 20. At least a portion of the support frame 2 can be located between two crossbeams 1, and the roller positioning groove 23 is located between the two crossbeams 1 to avoid interference between the crossbeams 1 and the take-up shaft 30. One end of the support frame 2 is movably connected to one crossbeam 1 in a first direction, and the other end of the support frame 2 is movably connected to another crossbeam 1 in a first direction. The two crossbeams 1 can support the support frame 2 at both ends to ensure the stability of the support frame 2. At the same time, the support frame 2 can move relative to the two support frames 2 in the left and right directions to adjust the position of the roller positioning groove 23 in the first direction.

[0028] Understandably, before assembling the take-up shaft 30 with the multiple take-up rollers 20, the position of each support frame 2 can be adjusted left and right in the first direction as needed so that the distribution position of the multiple roller positioning slots 23 corresponds one-to-one with the preset assembly position of the multiple take-up rollers 20, and then a take-up roller 20 is placed in the roller positioning slot 23 on each support frame 2.

[0029] When the take-up shaft 30 is assembled with multiple take-up rollers 20, since each roller positioning groove 23 can support and position one take-up roller 20, the position of the take-up roller 20 in the first direction is the preset assembly position. Therefore, after the take-up shaft 30 passes through each take-up roller 20 in the first direction, there is no need to readjust the position of the take-up roller 20. The take-up shaft 30 can directly expand radially or extend the locking pin to fix and connect with the corresponding take-up roller 20. Finally, the roller tooling 10 is separated from each take-up roller 20 to quickly complete the assembly of the take-up shaft 30 with multiple take-up rollers 20.

[0030] It should be noted that the movable connection between the support frame 2 and the crossbeam 1 can be achieved through structures such as a slide rail slider mechanism, a ball screw mechanism, or a linear telescopic rod mechanism.

[0031] According to the roller fixture 10 of this utility model embodiment, the support frame 2 is movably connected to each crossbeam 1 in the first direction. The support frame 2 can support and position the take-up roller 20 through its roller positioning groove 23. By adjusting the position of each support frame 2 in the first direction, multiple take-up rollers 20 do not need to be adjusted in position when assembled with the take-up shaft 30, so as to improve the assembly efficiency of the take-up roller 20 and the take-up shaft 30 and reduce the assembly time.

[0032] In some embodiments of this utility model, the roller positioning groove 23 is a semi-circular groove or a slightly curved groove.

[0033] Specifically, the take-up roller 20 is a cylindrical roller, and the roller positioning groove 23 is a semi-circular groove or a slightly curved groove that is adapted to the size of the take-up roller 20 and can be positioned and fitted. That is to say, the inner wall of the roller positioning groove 23 has a semi-circular or slightly curved cross-section in the direction perpendicular to the first direction, so as to facilitate the take-up roller 20 to be put into and taken out of the groove opening of the roller positioning groove 23, and reduce the wear between the take-up roller 20 and the inner wall of the roller positioning groove 23.

[0034] In some other embodiments of this utility model, the roller positioning groove 23 can be an arc-shaped groove or a circular groove, and the winding roller 20 can be inserted and removed in the axial direction (i.e., the first direction) of the roller positioning groove 23.

[0035] In some embodiments of this utility model, reference is made to Figures 2-4 As shown, the support frame 2 includes: a first sub-support 21 and a second sub-support 22. The first sub-support 21 is movably connected to each crossbeam 1 in a first direction, and the second sub-support 22 is movably connected to each crossbeam 1 in a first direction. The first sub-support 21 and the second sub-support 22 are mirror symmetrical, and the first sub-support 21 and the second sub-support 22 together define the roller positioning groove 23.

[0036] Specifically, the first sub-support 21 and the second sub-support 22 can have the same structure but opposite assembly directions to make them mirror-symmetrical in the left and right directions, thereby reducing the number of parts in the roller tooling 10. Since both the first sub-support 21 and the second sub-support 22 can move in the left and right directions and together define the roller positioning groove 23, the positions of the first sub-support 21 and the second sub-support 22 can be adjusted as a whole in the left and right directions to adjust the position of the roller positioning groove 23 as a whole. Alternatively, the positions of the first sub-support 21 and the second sub-support 22 can be adjusted separately in the left and right directions to change the distance between the first sub-support 21 and the second sub-support 22 in the left and right directions. When the distance between the first sub-support 21 and the second sub-support 22 in the left and right directions increases, the width of the roller positioning groove 23 in the left and right directions increases. When the distance between the first sub-support 21 and the second sub-support 22 in the left and right directions decreases, the width of the roller positioning groove 23 in the left and right directions decreases, thereby achieving the adjustment of the width of the roller positioning groove 23 so that the roller positioning groove 23 can be adapted to take-up rollers 20 of different widths.

[0037] It should be noted that the left end of the roller positioning groove 23 can be defined by the first sub-support 21, and the right end of the roller positioning groove 23 can be defined by the second sub-support 22. When the first sub-support 21 and the second sub-support 22 have a gap in the left and right direction, the gap in the left and right direction can correspond to the middle section of the roller positioning groove 23. This middle section is a spatial position without a physical structure, and the middle section of the roller positioning groove 23 does not affect the positioning and support of the roller positioning groove 23 on the winding roller 20.

[0038] In some embodiments of this utility model, reference is made to Figures 2-4 As shown, the first sub-support 21 includes a first connecting part 211, a second connecting part 212, and a support part 213. The first connecting part 211 is movably connected to a crossbeam 1 in a first direction, the second connecting part 212 is movably connected to another crossbeam 1 in a first direction, and the two ends of the support part 213 are respectively connected to the first connecting part 211 and the second connecting part 212. The support part 213 is constructed as an arc plate with an L-shaped cross section.

[0039] Specifically, the first connecting part 211 can be movably connected to the front crossbeam 1 in the left-right direction, the second connecting part 212 can be movably connected to the rear crossbeam 1 in the left-right direction, the front end of the support part 213 is connected to the first connecting part 211, the rear end of the support part 213 is connected to the second connecting part 212, and the first sub-support 21 can move as a whole relative to the two crossbeams 1 in the left-right direction.

[0040] The support portion 213 defines the left end of the roller positioning groove 23. The support portion 213 is constructed as an L-shaped arc plate, that is, the support portion 213 may include an axial plate 2131 and a radial plate 2132, which are connected at an included angle, thereby making the cross-section of the support portion 213 L-shaped. The axial plate 2131 can support and position the winding roller 20 on one side of the winding roller 20 in the axial direction, and the radial plate 2132 can support and position the winding roller 20 in the radial direction. At the same time, both the axial plate 2131 and the radial plate 2132 are arc-shaped to adapt to the shape of the winding roller 20, and can also reduce the weight and material usage of the first sub-support 21. In some embodiments, the support portion 213 may be formed by bending angle steel.

[0041] It should be noted that the second sub-support 22 has the same structure as the first sub-support 21, and the specific structure of the second sub-support 22 will not be described in detail here.

[0042] In some embodiments of this utility model, reference is made to Figure 5 As shown, the roller fixture 10 also includes: multiple locking mechanisms 3, each support frame 2 is equipped with at least one locking mechanism 3, and the support frame 2 is selectively locked to the crossbeam 1 through the locking mechanism 3.

[0043] Specifically, before the take-up shaft 30 is assembled with the multiple take-up rollers 20, the locking mechanism 3 on the support frame 2 can be released from the locking engagement with the crossbeam 1, so that the support frame 2 can move freely on the crossbeam 1. The position of each support frame 2 can be adjusted left and right in the first direction as needed, so that the distribution position of the multiple roller positioning grooves 23 corresponds one-to-one with the preset assembly position of the multiple take-up rollers 20. Then, the locking mechanism 3 on the support frame 2 is adjusted to lock into the crossbeam 1, so that the position of the support frame 2 relative to the crossbeam 1 is fixed, so as to avoid the position of the support frame 2 changing during the subsequent assembly process, thereby improving the assembly accuracy and consistency of the take-up rollers 20 and the shaft.

[0044] It should be noted that one or more locking mechanisms 3 may be installed on the support frame 2. When one locking mechanism 3 is installed on the support frame 2, the support frame 2 can be locked to one crossbeam 1 through one locking mechanism 3. When multiple locking mechanisms 3 are installed on the support frame 2, the support frame 2 can be locked to two crossbeams 1 through multiple locking mechanisms 3, so as to improve the stability of the connection between the support frame 2 and the two crossbeams 1.

[0045] For example, locking mechanisms 3 can be installed at both ends of the first sub-support 21, and the locking mechanisms 3 at both ends of the first sub-support 21 can selectively lock with the two crossbeams 1 respectively. Locking mechanisms 3 can be installed at both ends of the second sub-support 22, and the locking mechanisms 3 at both ends of the second sub-support 22 can selectively lock with the two crossbeams 1 respectively.

[0046] In some embodiments of this utility model, reference is made to Figure 2 and Figure 5 As shown, the crossbeam 1 has a groove 11 extending along the first direction. The locking mechanism 3 includes a nut slider and a fastening bolt. The nut slider is located in the groove 11, and the fastening bolt passes through the support frame 2 and is threadedly engaged with the nut slider.

[0047] Specifically, the slide groove 11 can be a T-slot or a dovetail groove. The nut slider can slide along the slide groove 11 in the left and right directions. The fastening bolt passes through the support frame 2 and is threadedly engaged with the nut slider. When the fastening bolt is loosened, the locking mechanism 3 releases its locking engagement with the crossbeam 1. That is, the nut slider lifts the support member through the fastening bolt, and the nut slider and the support member are not clamped to the crossbeam 1. The nut slider can slide within the slide groove 11, thus enabling the support frame 2 to be movably connected to the crossbeam 1 through the locking mechanism 3. When the fastening bolt is tightened, the locking mechanism 3 locks into the crossbeam 1. That is, the nut slider lifts the crossbeam 1 through the fastening bolt, and the nut slider and the support member clamp the crossbeam 1, thereby fixing the position of the crossbeam 1 and the support frame 2.

[0048] Reference Figure 4 As shown, the first connecting part 211 and the second connecting part 212 of the first sub-bracket 21 can both be provided with connecting holes 214, and each connecting hole 214 can be used for the fastening bolt of the locking mechanism 3 to pass through.

[0049] In some other embodiments of this utility model, the locking mechanism 3 can also be a locking pin, and the crossbeam 1 has a plurality of lock holes suitable for the insertion of the locking pin.

[0050] In some embodiments of this utility model, the support frame 2 is detachably connected to each crossbeam 1.

[0051] Specifically, the number of support frames 2 can be adjusted according to the number of take-up rollers 20 that need to be installed on the take-up shaft 30. That is, the number of support frames 2 installed on the two crossbeams 1 can be adjusted by disassembling and assembling the support frames 2, so that the number of support frames 2 corresponds to the number of take-up rollers 20, thereby improving the versatility of the roller tooling 10.

[0052] Reference Figure 1 and Figure 2 As shown, the slide groove 11 extends to the left and right ends of the crossbeam 1. When the fastening bolts are loosened, the locking mechanism 3 is released from the locking engagement with the crossbeam 1, and the nut slider can slide out from the left or right end of the slide groove 11, thereby allowing the support frame 2 to be removed from the crossbeam 1.

[0053] In some other embodiments of this utility model, the two ends of the support frame 2 are slidably overlapped or sleeved on the crossbeam 1 to facilitate the movement and disassembly of the support frame 2.

[0054] In some embodiments of this utility model, reference is made to Figure 1 and Figure 2 As shown, the outer surface of the crossbeam 1 has multiple scale lines 12, which are arranged at intervals along the first direction.

[0055] Specifically, the scale line 12 can be a raised or recessed structure on the outer surface of the crossbeam 1, or the scale line 12 can be a paint line formed by spraying on the outer surface of the crossbeam 1. The scale line 12 can indicate the position of the support frame 2 on the crossbeam 1, so as to facilitate the precise adjustment of the position of the support frame 2.

[0056] Reference Figure 1 and 2 As shown, the outer surfaces of both crossbeams 1 have multiple scale lines 12. In the left-right direction, the crossbeams 1 can have fifteen scale lines 12 at equal intervals. From left to right, each scale line 12 has a corresponding reading, which represents its distance from the center scale line 12. The unit can be mm. For example, from left to right, the readings corresponding to the fifteen scale lines 12 are: 350, 300, 250, 200, 150, 100, 50, 0, 50, 100, 150, 200, 250, 300, 350.

[0057] In some embodiments of this utility model, reference is made to Figure 2 and Figure 3 As shown, in the first direction, at least one end of the two crossbeams 1 is flush. When the take-up shaft 30 is assembled with the multiple take-up rollers 20, when the take-up shaft 30 passes through each take-up roller 20 in the first direction, the large plate 40 connected to the take-up shaft 30 can abut against the flush position of the left or right end of the two crossbeams 1, so as to realize the positioning of the take-up shaft 30 and the two crossbeams 1 in the left and right directions, thereby improving the assembly accuracy of the take-up shaft 30 and the multiple take-up rollers 20.

[0058] In some embodiments of this utility model, the roller fixture 10 further includes a lifting mechanism, wherein each crossbeam 1 is mounted on the lifting mechanism, and the lifting mechanism is used to drive each crossbeam 1 to lift synchronously.

[0059] Specifically, after the take-up shaft 30 is fixed to the multiple take-up rollers 20, the lifting mechanism can drive the two crossbeams 1 to move downwards, thereby separating the support frame 2 from each take-up roller 20, so that the take-up shaft 30 and the multiple take-up rollers 20 can be removed from the roller fixture 10. When the roller fixture 10 is reused, the lifting mechanism can drive the two crossbeams 1 to move upwards, so that they reach the same height as the take-up shaft 30, so that the take-up shaft 30 can be inserted into the take-up rollers 20.

[0060] In some embodiments, the lifting mechanism may be a scissor lift mechanism, which includes a base, a support platform, multiple sets of scissor arms hinged together by a central pin, and a drive device. The support platform is connected to the crossbeam 1. The lower end of the scissor arm is connected to the base via a lower guide rail, and the upper end is connected to the support platform via an upper guide rail. The drive device is hinged between one pair of scissor arms. When the drive device pushes the hinge point of the scissor arm to extend outward, the included angle between all scissor arms will increase synchronously, thereby converting the horizontal thrust into the rise of the support platform. Conversely, the mechanism will retract and descend under its own weight or external force.

[0061] In other embodiments, the lifting mechanism can be a hydraulic lifting mechanism, which includes a hydraulic pump, a hydraulic cylinder, a control valve group, and an oil tank. The hydraulic pump draws hydraulic oil from the oil tank and generates high pressure. The high-pressure oil enters the lower chamber of the hydraulic cylinder through the control valve group, pushing the piston rod to extend upward, thereby lifting the crossbeam 1. When it is necessary to lower, the control valve group switches the oil circuit, so that the oil in the lower chamber of the hydraulic cylinder flows back to the oil tank under the action of the piston rod and the crossbeam 1, and the piston rod and the crossbeam 1 descend.

[0062] According to the roller fixture 10 of this utility model embodiment, multiple take-up rollers 20 can be placed in place at one time, and the spacing between the take-up rollers 20 can be pre-adjusted and fixed by the support frame 2. After the take-up rollers 20 are placed, there is no need to adjust the spacing, which greatly saves the placement time of the take-up rollers 20 and the adjustment time of the spacing between the take-up rollers 20, and improves the overall efficiency (OEE) of the equipment.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A roller fixture, characterized in that, include: Two crossbeams (1) are arranged in parallel and both extend along a first direction; Multiple support frames (2) are movably connected to each of the crossbeams (1) in the first direction. Each support frame (2) has a roller positioning groove (23) located between two of the crossbeams (1).

2. The roller fixture according to claim 1, characterized in that, The roller positioning groove (23) is a semi-circular groove or a slightly curved groove.

3. The roller fixture according to claim 2, characterized in that, The support frame (2) includes: The first sub-support (21) is movably connected to each of the crossbeams (1) in the first direction; The second sub-support (22) is movably connected to each of the crossbeams (1) in the first direction; The first sub-support (21) and the second sub-support (22) are mirror-symmetrical, and the first sub-support (21) and the second sub-support (22) together define the roller positioning groove (23).

4. The roller fixture according to claim 3, characterized in that, The first sub-support (21) includes: A first connecting part (211) is movably connected to one of the crossbeams (1) in the first direction; The second connecting part (212) is movably connected to another of the crossbeams (1) in the first direction; The support part (213) is connected at both ends to the first connecting part (211) and the second connecting part (212) respectively. The support part (213) is constructed as an arc plate with an L-shaped cross section.

5. The roller fixture according to any one of claims 1-4, characterized in that, The roller fixture further includes multiple locking mechanisms (3), each of the support frames (2) is equipped with at least one of the locking mechanisms (3), and the support frame (2) is selectively locked to the crossbeam (1) through the locking mechanism (3).

6. The roller fixture according to claim 5, characterized in that, The crossbeam (1) is provided with a groove (11) extending in the first direction; The locking mechanism (3) includes a nut slider and a fastening bolt. The nut slider is located in the groove (11), and the fastening bolt passes through the support frame (2) and is threadedly engaged with the nut slider.

7. The roller fixture according to claim 1, characterized in that, The support frame (2) is detachably connected to each of the crossbeams (1).

8. The roller fixture according to claim 1, characterized in that, The outer surface of the crossbeam (1) has multiple scale lines (12), which are arranged at intervals along the first direction.

9. The roller fixture according to claim 1, characterized in that, In the first direction, at least one end of the two beams (1) is flush.

10. The roller fixture according to claim 1, characterized in that, The roller fixture further includes a lifting mechanism, on which each of the crossbeams (1) is mounted, and the lifting mechanism is used to drive each of the crossbeams (1) to move up and down synchronously.

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