Frame fixing tool

Abstract

The utility model discloses a frame fixing tool, which comprises an upper fastening plate, a lower fastening plate, a lower fastening plate and a lower fastening plate, the tensioning assembly comprises an upper pull rod, a tensioning bolt and a lower pull rod, the upper pull rod is fixed in the downward direction relative to the upper fastening plate, an upper screw hole is formed in the upper side of the tensioning bolt, a lower screw hole is formed in the lower side of the tensioning bolt, the thread direction of the upper screw hole is opposite to the thread direction of the lower screw hole, and the upper screw hole is in threaded connection with the upper screw rod section; the lower screw section is in threaded connection with the lower screw hole; and the lower fastening plate can be fixed with the lower beam of the frame, and the lower fastening plate is fixed in the upward direction relative to the lower pull rod. The tensioning bolt is rotated to enable the upper pull rod and the lower pull rod to be close to each other, the upper pull rod and the lower pull rod pull the upper fastening plate and the lower fastening plate to be close to each other, namely, the upper beam and the lower beam are pulled to be close to each other and clamp the stand column, and fixation is kept through self-locking performance of threaded connection, so that the upper beam, the lower beam and the stand column are fixed to form a frame, and operation is convenient and labor-saving. The production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frame production, in particular to a frame fixing tool. Background Art

[0002] Prestressed steel wire winding frame has the advantages of small stress change amplitude during operation, strong bearing capacity, strong fatigue resistance, compact structure, less required materials and light weight, etc. It can be used in extruders, die forging hydraulic presses or brick presses. Prestressed steel wire winding frame includes upper beam, two side columns and lower beam, and steel wire is wrapped around the periphery to form a frame. Before production, the upper beam, columns and lower beam need to be fixed first and then the steel wire is wrapped.

[0003] However, the existing structure for fixing the upper beam, the column and the lower beam is relatively complicated to operate during assembly. When the upper beam, the column and the lower beam have some assembly errors, it is difficult to assemble and fix them, which consumes a lot of manpower and time, resulting in low production efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a frame fixing tool, aiming to solve the technical problems in the prior art that the fixing operation of the frame before winding the steel wire is relatively complicated, labor-intensive and time-consuming.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a frame fixing tool, comprising:

[0006] An upper fastening plate, which can be fixed to the upper beam of the frame, and the upper fastening plate is provided with an upper fixing hole, and the upper fixing hole is used for fixed connection with the upper beam;

[0007] The tensioning assembly comprises an upper pull rod, a tensioning bolt and a lower pull rod, the upper pull rod is arranged on the lower side of the upper fastening plate, the upper pull rod is fixed in a downward direction relative to the upper fastening plate, an upper screw section is arranged on the lower side of the upper pull rod, the tensioning bolt is arranged on the lower side of the upper pull rod, an upper screw hole is arranged on the upper side of the tensioning bolt, a lower screw hole is arranged on the lower side of the tensioning bolt, a thread direction of the upper screw hole is arranged in the opposite direction to that of the lower screw hole, the upper screw hole is threadedly connected with the upper screw section, the lower pull rod is arranged on the lower side of the tensioning bolt, a lower screw section is arranged on the upper side of the lower pull rod, and the lower screw section is threadedly connected with the lower screw hole;

[0008] A lower fastening plate is arranged on the lower side of the lower pull rod, the lower fastening plate can be fixed to the lower beam of the frame, the lower fastening plate is provided with a lower fixing hole, the lower fixing hole is used for fixed connection with the lower beam, and the lower fastening plate is fixed in an upward direction relative to the lower pull rod.

[0009] When fixing the frame, the column is placed between the upper beam and the lower beam, and the frame fixing tool is placed between the upper beam and the lower beam. First, the upper fastening plate is attached to the lower side of the upper beam and fixed to the upper beam through the upper fixing hole, and the lower fastening plate is attached to the upper side of the lower beam and fixed to the lower beam through the lower fixing hole; then the tensioning bolt is rotated. Since the thread directions of the upper screw hole and the lower screw hole on the tensioning bolt are opposite, the upper pull rod is threadedly connected to the upper screw hole, and the lower pull rod is threadedly connected to the lower screw hole, so when the tensioning bolt is rotated, the upper pull rod and the lower pull rod will approach or move away from each other, and rotating the tensioning bolt will bring the upper pull rod and the lower pull rod closer to each other, and the upper pull rod and the lower pull rod pull the upper fastening plate and the lower fastening plate closer to each other, that is, pull the upper beam and the lower beam closer to each other and clamp the column, and use the self-locking property of the threaded connection to keep it fixed, thereby realizing the fixation of the upper beam, the lower beam and the column to form a frame. This frame fixing tool can adapt to the vertical size position of the upper beam, lower beam and column before assembling the fixed frame, and then the upper beam, lower beam and column can be fixed by rotating and tightening. The operation is convenient and labor-saving, which can reduce manual operation, speed up the fixing time and improve production efficiency.

[0010] Preferably, there are multiple tensioning assemblies, and the multiple tensioning assemblies are distributed between the upper fastening plate and the lower fastening plate. The multiple tensioning assemblies can be tightened and fixed at different positions to improve the uniformity of the overall tensioning of the frame.

[0011] Preferably, the tension bolt is provided with a rotation hole for driving rotation, and the rotation hole is arranged between the upper screw hole and the lower screw hole. A rod is inserted into the rotation hole, and the tension bolt can be rotated manually through the rod, which is convenient for rotation force.

[0012] Preferably, the upper fastening plate is provided with an upper connecting hole, an upper countersunk hole is provided on the upper side of the upper connecting hole, an upper connecting block is provided at the upper end of the upper pull rod, the upper end of the upper pull rod passes through the upper connecting hole, and the upper connecting block is arranged in the upper countersunk hole.

[0013] The upper pull rod passes through the upper connecting hole, and the upper connecting block at the upper end of the upper pull rod is in the upper countersunk hole of the upper fastening plate. The upper connecting block and the upper countersunk hole fix the upper pull rod in the downward direction relative to the upper fastening plate, so that the upper pull rod can pull the upper fastening plate downward, and the structure is simple.

[0014] Preferably, the lower fastening plate is provided with a lower connecting hole, a sinking hole is provided on the lower side of the lower connecting hole, a lower connecting block is provided at the lower end of the lower pull rod, the lower end of the lower pull rod passes through the lower connecting hole, and the lower connecting block is arranged in the sinking hole.

[0015] The lower pull rod passes through the lower connecting hole, and the lower connecting block at the lower end of the lower pull rod is in the sinking hole of the lower fastening plate. The lower connecting block and the sinking hole fix the lower pull rod in the upward direction relative to the lower fastening plate, so that the lower pull rod can pull the lower fastening plate upward, and the structure is simple.

[0016] Preferably, the upper pull rod is rotatably connected to the upper fastening plate, and an upper rotating part for driving rotation is provided on the upper pull rod; the lower pull rod is rotatably connected to the lower fastening plate, and a lower rotating part for driving rotation is provided on the lower pull rod.

[0017] The upper pull rod is provided with an upper rotating part, through which the upper pull rod can be rotated or the rotation of the upper pull rod can be limited; the lower pull rod is provided with a lower rotating part, through which the lower pull rod can be rotated or the rotation of the lower pull rod can be limited, so that the tension can be adjusted more flexibly.

[0018] Preferably, the upper fastening plate includes a first connecting plate and a second connecting plate, the first connecting plate is arranged on the upper side of the second connecting plate, the upper pull rod is connected to the second connecting plate, the first connecting plate and the second connecting plate are fixedly connected by a first screw, and the upper fixing hole is arranged on the first connecting plate.

[0019] The upper pull rod is connected to the second connecting plate, the first connecting plate is connected to the upper beam, the first connecting plates with different upper fixing hole positions can adapt to different hole positions of the upper beam, and the first connecting plates with different thicknesses can also adapt to columns of different lengths, thereby improving the versatility of the frame fixing tooling.

[0020] Preferably, the lower side of the upper fastening plate and / or the upper side of the lower fastening plate are provided with reinforcing ribs, which can improve the strength and anti-deformation ability, so that the upper fastening plate can be kept straight and close to the upper beam or the lower fastening plate can be kept straight and close to the lower beam.

[0021] Preferably, the frame fixing tool also includes a compression detection component, which includes a first detection seat, a second detection seat, a detection strip and a micrometer. The first detection seat and the second detection seat can be fixedly connected to the column of the frame. The first detection seat and the second detection seat are arranged at intervals along the relative direction of the upper fastening plate and the lower fastening plate. One end of the detection strip is fixed or abutted with the first detection seat, and the micrometer is fixed to the other end of the detection strip. The detection head of the micrometer abuts with the second detection seat.

[0022] When winding the steel wire, the steel wire is subjected to different stress positions during winding, and the frame may be compressed and deformed. A first detection seat and a second detection seat are set on the column. When the column is compressed and deformed, the distance between the first detection seat and the second detection seat changes. A detection strip and a micrometer are set between the first detection seat and the second detection seat. The micrometer can measure the change in the distance between the first detection seat and the second detection seat, so that the deformation of the frame can be detected in real time and conveniently during the winding process, and the winding process can be adjusted in time.

[0023] Preferably, the compression detection component further comprises a supporting bearing, which can be connected to the column, and the supporting bearing is arranged on the lower side of the detection strip, and the detection strip abuts against the upper side of the detection strip.

[0024] When winding the steel wire, the frame is placed horizontally, and a supporting bearing is used to support the detection strip, and the detection strip and the supporting bearing are in rolling contact. The supporting bearing does not deform the detection strip, which can improve the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 This is a front view structural schematic diagram of the utility model;

[0027] Figure 2 It is a side view structural schematic diagram of the utility model;

[0028] Figure 3 for Figure 1 The structural diagram of the middle A direction;

[0029] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the BB direction;

[0030] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure in the CC direction;

[0031] Figure 6 It is a structural schematic diagram of the frame fixing tooling of the utility model when it is connected to the frame;

[0032] Figure 7 It is a structural schematic diagram of the compression detection component of the utility model.

[0033] In the accompanying drawings: 1-upper fastening plate, 11-upper fixing hole, 12-upper connecting hole, 13-upper countersunk hole, 14-first connecting plate, 141-first screw, 15-second connecting plate, 16-reinforcement rib, 17-upper fastening screw, 2-upper pull rod, 21-upper screw segment, 22-upper connecting block, 23-upper rotating part, 3-tension bolt, 31-upper screw hole, 32-lower screw hole, 33-rotating hole, 4-lower pull rod, 41-lower screw segment, 42-lower connecting block, 43-lower rotating part, 5-lower fastening plate, 51-lower fixing hole, 52-lower connecting hole, 53-sinking hole, 54-lower fastening screw, 6-compression detection assembly, 61-first detection seat, 62-second detection seat, 63-detection strip, 64-micrometer, 65-support bearing, 71-upper beam, 72-column, 73-lower beam.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of technical personnel in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] like Figures 1 to 7 As shown, a frame fixing tool comprises an upper fastening plate 1, a tensioning assembly and a lower fastening plate 5.

[0039] The upper fastening plate 1 can be fixed to the upper beam 71 of the frame. An upper fixing hole 11 is provided on the upper fastening plate 1. The upper fixing hole 11 is used for fixed connection with the upper beam 71. The upper fixing hole 11 can be fixed by an upper fastening screw 17 using a hole on the upper beam 71.

[0040] The tensioning assembly includes an upper pull rod 2, a tension bolt 3 and a lower pull rod 4. Figure 4 The upper pull rod 2 is arranged on the lower side of the upper fastening plate 1, and the upper pull rod 2 is fixed in the downward direction relative to the upper fastening plate 1. An upper screw segment 21 is provided on the lower side of the upper pull rod 2. The tensioning bolt 3 is arranged on the lower side of the upper pull rod 2. An upper screw hole 31 is provided on the upper side of the tensioning bolt 3. A lower screw hole 32 is provided on the lower side of the tensioning bolt 3. The thread direction of the upper screw hole 31 is opposite to the thread direction of the lower screw hole 32. The upper screw hole 31 is threadedly connected with the upper screw segment 21. The lower pull rod 4 is arranged on the lower side of the tensioning bolt 3. A lower screw segment 41 is provided on the upper side of the lower pull rod 4. The lower screw segment 41 is threadedly connected with the lower screw hole 32.

[0041] The lower fastening plate 5 is arranged on the lower side of the lower pull rod 4, and the lower fastening plate 5 can be fixed to the lower beam 73 of the frame. The lower fastening plate 5 is provided with a lower fixing hole 51, and the lower fixing hole 51 is used to be fixedly connected to the lower beam 73. The lower fixing hole 51 can be fixed by a lower fastening screw 54 using a hole on the lower beam 73. The lower fastening plate 5 is fixed in an upward direction relative to the lower pull rod 4.

[0042] When fixing the frame, the column 72 is placed between the upper beam 71 and the lower beam 73, and the frame fixing tool is placed between the upper beam 71 and the lower beam 73. Figure 6 , first, the upper fastening plate 1 is attached to the lower side of the upper beam 71 and fixed to the upper beam 71 through the upper fixing hole 11, and the lower fastening plate 5 is attached to the upper side of the lower beam 73 and fixed to the lower beam 73 through the lower fixing hole 51; then the tensioning bolt 3 is rotated. Since the thread directions of the upper screw hole 31 and the lower screw hole 32 on the tensioning bolt 3 are opposite, the upper pull rod 2 is threadedly connected to the upper screw hole 31, and the lower pull rod 4 is threadedly connected to the lower screw hole 32. Therefore, when the tensioning bolt 3 is rotated, the upper pull rod 2 and the lower pull rod 4 will approach each other or move away from each other. Rotating the tensioning bolt 3 makes the upper pull rod 2 and the lower pull rod 4 approach each other, and the upper pull rod 2 and the lower pull rod 4 pull the upper fastening plate 1 and the lower fastening plate 5 approach each other, that is, pull the upper beam 71 and the lower beam 73 approach each other and clamp the column 72, and use the self-locking property of the threaded connection to keep it fixed, thereby realizing the fixation of the upper beam 71, the lower beam 73 and the column 72 to form a frame. When the frame is wound, loosen the upper fastening screws between the upper fastening plate and the upper beam, and the lower fastening screws between the lower fastening plate and the lower beam, and turn the tension bolts to bring the upper pull rod and the lower pull rod closer, the upper fastening plate leaves the upper beam, and the lower fastening plate leaves the lower beam, and the frame fixing tooling can be taken out.

[0043] This frame fixing tool can adapt to the vertical size position of the upper beam 71, the lower beam 73 and the column 72 before assembling the fixed frame, and then the upper beam 71, the lower beam 73 and the column 72 can be fixed by rotating and tightening. The operation is convenient and labor-saving, which can reduce manual operation, speed up the fixing time and improve production efficiency.

[0044] In some specific embodiments, there are multiple tensioning assemblies, and the multiple tensioning assemblies are distributed between the upper fastening plate 1 and the lower fastening plate 5. Multiple tensioning assemblies can be tightened and fixed at different positions to improve the uniformity of the overall tensioning of the frame. Preferably, there are four tensioning assemblies, and the four tensioning assemblies are evenly distributed at the four corners.

[0045] In some specific embodiments, referring to Figure 4 The tension bolt 3 is provided with a rotation hole 33 for driving rotation. The rotation hole 33 is arranged horizontally and is arranged between the upper screw hole 31 and the lower screw hole 32. A rod is inserted into the rotation hole 33, and the tension bolt 3 can be rotated manually through the rod, which is convenient for rotation. Two rotation holes 33 can be provided, and the two rotation holes 33 are arranged up and down and are arranged at an angle in the axial direction. The angle is preferably a right angle. When the tension bolt 3 is rotated to different angles, the rotation hole 33 can be switched to facilitate rotation. In other embodiments, a groove can also be provided on the tension bolt 3 for rotation.

[0046] In some specific embodiments, an upper connecting hole 12 is provided on the upper fastening plate 1, an upper countersunk hole 13 is provided on the upper side of the upper connecting hole 12, an upper connecting block 22 is provided at the upper end of the upper pull rod 2, the diameter of the upper connecting block 22 is larger than the diameter of the upper pull rod 2, the upper end of the upper pull rod 2 passes through the upper connecting hole 12, and the upper connecting block 22 is arranged in the upper countersunk hole 13.

[0047] The upper pull rod 2 passes through the upper connection hole 12, and the upper connection block 22 at the upper end of the upper pull rod 2 is in the upper countersunk hole 13 of the upper fastening plate 1. The upper connection block 22 and the upper countersunk hole 13 realize the fixing of the upper pull rod 2 in the downward direction relative to the upper fastening plate 1, so that the upper pull rod 2 can pull the upper fastening plate 1 downward. The structure is simple. When the upper pull rod 2 is rotatably connected to the upper fastening plate 1, the upper connection block 22 can be tightened and rotated in the upper countersunk hole 13. In other embodiments, the upper pull rod 2 and the upper fastening plate 1 can be fixed by screw connection.

[0048] In some specific embodiments, a lower connecting hole 52 is provided on the lower fastening plate 5, a sinking hole 53 is provided on the lower side of the lower connecting hole 52, a lower connecting block 42 is provided at the lower end of the lower pull rod 4, the lower end of the lower pull rod 4 passes through the lower connecting hole 52, and the lower connecting block 42 is arranged in the sinking hole 53.

[0049] The lower pull rod 4 passes through the lower connection hole 52, and the lower connection block 42 at the lower end of the lower pull rod 4 is in the sinking hole 53 of the lower fastening plate 5. The lower connection block 42 and the sinking hole 53 realize the fixing of the lower pull rod 4 in the upward direction relative to the lower fastening plate 5, so that the lower pull rod 4 can pull the lower fastening plate 5 upward, and the structure is simple. In other embodiments, the lower pull rod 4 and the lower fastening plate 5 can be fixed by screw connection.

[0050] In some specific embodiments, the upper pull rod 2 is rotatably connected to the upper fastening plate 1, and an upper rotating portion 23 for driving the rotation is provided on the upper pull rod 2; the lower pull rod 4 is rotatably connected to the lower fastening plate 5, and a lower rotating portion 43 for driving the rotation is provided on the lower pull rod 4.

[0051] The upper pull rod 2 is provided with an upper rotating part 23, through which the upper pull rod 2 can be rotated or the rotation of the upper pull rod 2 can be limited. The lower pull rod 4 is provided with a lower rotating part 43, through which the lower pull rod 4 can be rotated or the rotation of the lower pull rod 4 can be limited, so that the tension can be adjusted more flexibly.

[0052] In some specific embodiments, referring to Figure 5 The upper fastening plate 1 includes a first connecting plate 14 and a second connecting plate 15. The first connecting plate 14 is arranged on the upper side of the second connecting plate 15. The upper pull rod 2 is connected to the second connecting plate 15. The first connecting plate 14 and the second connecting plate 15 are fixedly connected by a first screw 141. The upper fixing hole 11 is arranged on the first connecting plate 14.

[0053] The upper pull rod 2 is connected to the second connecting plate 15, and the first connecting plate 14 is connected to the upper beam 71. The first connecting plates 14 with different positions of the upper fixing holes 11 can adapt to different positions of the upper beam 71, and the first connecting plates 14 with different thicknesses can also adapt to columns 72 with different lengths, thereby improving the versatility of the frame fixing tooling.

[0054] In some specific embodiments, the lower side of the upper fastening plate 1 and / or the upper side of the lower fastening plate 5 are provided with reinforcing ribs 16. The reinforcing ribs 16 can improve the strength and anti-deformation ability, so that the upper fastening plate 1 can be kept straight and close to the upper beam 71 or the lower fastening plate 5 can be kept straight and close to the lower beam 73.

[0055] In some specific embodiments, referring to Figure 6 and Figure 7 The frame fixing tooling also includes a compression detection component 6, which includes a first detection seat 61, a second detection seat 62, a detection strip 63 and a micrometer 64. The first detection seat 61 and the second detection seat 62 can be fixedly connected to the column 72 of the frame. The first detection seat 61 and the second detection seat 62 are arranged at intervals along the relative direction of the upper fastening plate 1 and the lower fastening plate 5. One end of the detection strip 63 is fixed or abutted with the first detection seat 61, and the micrometer 64 is fixed to the other end of the detection strip 63. The detection head of the micrometer 64 abuts with the second detection seat 62.

[0056] When winding the steel wire, the steel wire is subjected to different stress positions during winding, and the frame may be compressed and deformed. A first detection seat 61 and a second detection seat 62 are set on the column 72. When the column 72 is compressed and deformed, the distance between the first detection seat 61 and the second detection seat 62 changes. A detection strip 63 and a micrometer 64 are set between the first detection seat 61 and the second detection seat 62. The shells of the detection strip 63 and the micrometer 64 are fixed or abutted against the first detection seat 61, and the detection head of the micrometer 64 is abutted against the second detection seat 62. In this way, the micrometer 64 can measure the change in the distance between the first detection seat 61 and the second detection seat 62, so that the deformation of the frame can be detected in real time and conveniently during the winding process, and the winding process can be adjusted in time.

[0057] Furthermore, the compression detection component 6 also includes a supporting bearing 65 , which can be connected to the column 72 , and the supporting bearing 65 is arranged on the lower side of the detection bar 63 , and the detection bar 63 abuts against the upper side of the detection bar 63 .

[0058] When winding the steel wire, the frame is placed horizontally, and the support bearing 65 is used to support the detection strip 63, and the detection strip 63 and the support bearing 65 are in rolling contact. The support bearing 65 does not deform the detection strip 63, which can improve the accuracy of detection.

[0059] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A frame fixing tool, characterized in that: include: An upper fastening plate (1) capable of being fixed to an upper beam (71) of the frame, wherein an upper fixing hole (11) is provided on the upper fastening plate (1), and the upper fixing hole (11) is used for being fixedly connected to the upper beam (71); A tensioning assembly, the tensioning assembly comprising an upper pull rod (2), a tensioning bolt (3) and a lower pull rod (4), the upper pull rod (2) being arranged on the lower side of the upper fastening plate (1), the upper pull rod (2) being fixed in a downward direction relative to the upper fastening plate (1), the lower side of the upper pull rod (2) being provided with an upper screw section (21), the tensioning bolt (3) being arranged on the lower side of the upper pull rod (2), the upper side of the tensioning bolt (3) being provided with an upper screw hole (31 ), a lower screw hole (32) is provided on the lower side of the tension bolt (3), the thread direction of the upper screw hole (31) is arranged opposite to the thread direction of the lower screw hole (32), the upper screw hole (31) is threadedly connected to the upper screw rod section (21), the lower pull rod (4) is arranged on the lower side of the tension bolt (3), the upper side of the lower pull rod (4) is provided with a lower screw rod section (41), and the lower screw rod section (41) is threadedly connected to the lower screw hole (32); A lower fastening plate (5) is arranged on the lower side of the lower pull rod (4), and the lower fastening plate (5) can be fixed to the lower beam (73) of the frame. The lower fastening plate (5) is provided with a lower fixing hole (51), and the lower fixing hole (51) is used for fixed connection with the lower beam (73). The lower fastening plate (5) is fixed in an upward direction relative to the lower pull rod (4).

2. The frame fixing tool as claimed in claim 1, characterized in that: There are multiple tensioning assemblies, and the multiple tensioning assemblies are distributed between the upper fastening plate (1) and the lower fastening plate (5).

3. The frame fixing tool as claimed in claim 1, characterized in that: The tension bolt (3) is provided with a rotation hole (33) for driving rotation, and the rotation hole (33) is arranged between the upper screw hole (31) and the lower screw hole (32).

4. The frame fixing tool as claimed in claim 1, characterized in that: The upper fastening plate (1) is provided with an upper connecting hole (12), the upper side of the upper connecting hole (12) is provided with an upper countersunk hole (13), the upper end of the upper pull rod (2) is provided with an upper connecting block (22), the upper end of the upper pull rod (2) passes through the upper connecting hole (12), and the upper connecting block (22) is arranged in the upper countersunk hole (13).

5. The frame fixing tool as claimed in claim 1, characterized in that: The lower fastening plate (5) is provided with a lower connecting hole (52), the lower side of the lower connecting hole (52) is provided with a sinking hole (53), the lower end of the lower pull rod (4) is provided with a lower connecting block (42), the lower end of the lower pull rod (4) passes through the lower connecting hole (52), and the lower connecting block (42) is arranged in the sinking hole (53).

6. The frame fixing tool as claimed in claim 1, characterized in that: The upper pull rod (2) is rotationally connected to the upper fastening plate (1), and an upper rotating part (23) for driving the rotation is provided on the upper pull rod (2); the lower pull rod (4) is rotationally connected to the lower fastening plate (5), and a lower rotating part (43) for driving the rotation is provided on the lower pull rod (4).

7. The frame fixing tool as claimed in claim 1, characterized in that: The upper fastening plate (1) comprises a first connecting plate (14) and a second connecting plate (15), wherein the first connecting plate (14) is arranged on the upper side of the second connecting plate (15), the upper pull rod (2) is connected to the second connecting plate (15), the first connecting plate (14) and the second connecting plate (15) are fixedly connected by a first screw (141), and the upper fixing hole (11) is arranged on the first connecting plate (14).

8. The frame fixing tool as claimed in claim 1, characterized in that: The lower side of the upper fastening plate (1) and / or the upper side of the lower fastening plate (5) are provided with reinforcing ribs (16).

9. The frame fixing tool as claimed in claim 1, characterized in that: The frame fixing tool also includes a compression detection component (6), which includes a first detection seat (61), a second detection seat (62), a detection strip (63) and a micrometer (64). The first detection seat (61) and the second detection seat (62) can be fixedly connected to the column (72) of the frame. The first detection seat (61) and the second detection seat (62) are arranged at intervals along the relative direction of the upper fastening plate (1) and the lower fastening plate (5). One end of the detection strip (63) is fixed to or abuts against the first detection seat (61), and the micrometer (64) is fixed to the other end of the detection strip (63). The detection head of the micrometer (64) abuts against the second detection seat (62).

10. The frame fixing tool as claimed in claim 9, characterized in that: The compression detection component (6) further comprises a support bearing (65), wherein the support bearing (65) is connectable to the column (72), the support bearing (65) is arranged on the lower side of the detection bar (63), and the detection bar (63) abuts against the upper side of the detection bar (63).

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