Device for fixing rod piece and equipment for cutting rod piece

Abstract

The embodiment of the utility model discloses a device for fixing a rod piece and equipment for cutting the rod piece. The device comprises a first annular component, a second annular component and a third annular component, the first clamping piece is fixedly arranged on the first component, and the first clamping piece is used for clamping the rod piece parallel to the plane where the first component is located in the radial direction of the rod piece; a second member matching an inner circumferential surface of the first member such that the first member and the second member are rotatable relative to each other; and the second clamping piece is fixedly arranged on the second component, and the second clamping piece is also used for clamping the rod piece parallel to the plane where the first component is located in the radial direction of the rod piece. According to the device, through relative rotation of the first component and the second component, stable clamping of rod pieces with different bending angles is achieved, and the machining precision and quality are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction equipment especially relates to a device for fixing rod piece and the equipment for cutting rod piece. BACKGROUND

[0002] In civil engineering construction, steel bars are the main load-bearing materials of building structures, and their processing quality directly affects the safety and durability of building structures. As a key link in steel bar processing, ensuring the accuracy of steel bar length and shape is an important guarantee for construction quality. A reasonable cutting process not only improves construction efficiency, but also reduces material waste and saves costs. Therefore, steel bar cutting technology is of great significance in building construction.

[0003] Currently, steel bar cutting usually adopts the following methods. First, manual cutting, which involves cutting steel bars by hand with cutting tools such as angle grinders. Second, fixed cutting machines, which involve fixing steel bars on the workbench of the cutting machine and completing the cutting by the motor-driven cutting blade. Some construction sites also use special steel bar cutting devices, which usually have clamping mechanisms and cutting mechanisms and can fix and cut steel bars.

[0004] However, manual cutting has low precision and low efficiency, and can easily result in uneven cutting surfaces or steel bar deformation due to improper operation. Fixed cutting machines have high cutting precision, but can only handle straight steel bars and cannot meet the cutting needs of curved steel bars. Existing special steel bar cutting devices can mostly only handle straight steel bars or curved steel bars with fixed angles and cannot flexibly handle steel bars with different bending angles. Most importantly, in actual construction, the bending angles of steel bars often vary due to design needs, and existing cutting devices can usually only fix straight steel bars or curved steel bars with fixed angles and cannot handle steel bars with arbitrary bending angles, which can cause the steel bars to shift or deform during cutting, affecting cutting precision. For cutting multiple curved steel bars, existing devices need to be fixed and cut one by one and cannot handle multiple steel bars at the same time, resulting in low construction efficiency. Due to the inability to accurately fix curved steel bars, the cross sections of cut steel bars can be uneven, affecting subsequent connection quality and even causing structural safety hazards. In summary, existing steel bar cutting devices have obvious limitations in handling curved steel bars and cannot meet the high requirements for cutting precision and efficiency in modern building construction. Therefore, developing a cutting device that can handle steel bars with arbitrary bending angles has important practical significance and application value. SUMMARY

[0005] To solve the above technical problems, the embodiments of the utility model expect to provide a device for fixing rod pieces and an equipment for cutting rod pieces, which can stably clamp rod pieces with different bending angles and ensure processing precision and quality.

[0006] The technical scheme of the utility model is as follows:

[0007] In a first aspect, the utility model provides a device for fixing a rod, which comprises:

[0008] A first member in the shape of a circular ring;

[0009] A first clamping member fixedly arranged on the first member, which is used for clamping the rod in the radial direction of the rod and parallel to the plane in which the first member is located;

[0010] A second member matched with the inner circumferential surface of the first member, so that the first member and the second member can rotate relative to each other;

[0011] A second clamping member fixedly arranged on the second member, which is also used for clamping the rod in the radial direction of the rod and parallel to the plane in which the first member is located.

[0012] In some optional examples, the first clamping member and the second clamping member each comprise a U-shaped plate, and the rod is clamped by two branches of the U-shaped plate.

[0013] In some optional examples, the longitudinal inner surface of the U-shaped plate is formed with a series of grooves distributed along the longitudinal direction of the U-shaped plate, and the first clamping member and the second clamping member each further comprise:

[0014] A sliding block arranged in the groove;

[0015] A screw rod threadedly matched with the U-shaped plate and rotationally connected with the sliding block, so as to reciprocally move the sliding block in the groove when the screw rod is screwed;

[0016] A pressing member connected to the sliding block and used for pressing the rod by the movement of the sliding block.

[0017] In some optional examples, the pressing member comprises:

[0018] A first rod rotationally connected to the sliding block in a manner capable of rotating in the plane in which the U-shaped plate is located;

[0019] A second rod rotationally connected to one end of the first rod in a manner capable of rotating in the plane in which the U-shaped plate is located;

[0020] A third rod rotationally connected to the other end of the first rod in a manner capable of rotating in the plane in which the U-shaped plate is located;

[0021] a first clamping block rotatably connected to one end of the second rod in a plane in which the U-shaped plate is located;

[0022] a second clamping block rotatably connected to the other end of the second rod in the plane in which the U-shaped plate is located;

[0023] a third clamping block rotatably connected to one end of the third rod in the plane in which the U-shaped plate is located;

[0024] a fourth clamping block rotatably connected to the other end of the third rod in the plane in which the U-shaped plate is located;

[0025] The first clamping block, the second clamping block, the third clamping block, and the fourth clamping block are configured to contact the rod member to press against the rod member.

[0026] In some optional examples, a contact surface of each of the first clamping block, the second clamping block, the third clamping block, and the fourth clamping block that contacts the rod member is formed with corrugations.

[0027] In a second aspect, an apparatus for cutting a rod member is provided, and the apparatus includes:

[0028] The second member is in the form of a circular ring.

[0029] A third member in the form of a circular plate that matches an inner circumferential surface of the second member, such that the third member and the second member are rotatable relative to each other.

[0030] A cutter provided on the third member so as to rotate with the third member, the cutter being configured to cut the rod member.

[0031] In some optional examples, the apparatus further includes:

[0032] A vertical plate that is perpendicular to a plane in which the third member is located and is formed with a slot.

[0033] A mounting plate configured to mount the cutter.

[0034] A driver configured to drive the mounting plate to move in a direction perpendicular to the plane in which the third member is located, under guidance of the slot.

[0035] In some optional examples, the third member is formed with a sliding groove configured to guide the vertical plate to move in a direction parallel to the plane in which the third member is located.

[0036] In some optional examples, the device further comprises a fourth member in the shape of a ring, which is matched with the outer circumferential surface of the first member so that the fourth member and the first member can rotate relative to each other, wherein the third member is fixedly provided with a first pressing block, and the fourth member is fixedly provided with a second pressing block, the first pressing block is used to press against the rod fixed by the device by rotating the third member and the second member relative to each other, and the second pressing block is used to press against the rod fixed by the device by rotating the fourth member and the first member relative to each other.

[0037] In some optional examples, the fourth member is provided with a scale line for determining the rotation angle of the first member and the second member.

[0038] The device provided by the embodiment of the present application can easily adapt to rod pieces with different bending angles through the relative rotation of the first member and the second member. This design makes the clamping angle flexible, and stable clamping can be achieved through simple rotation even in a complex bending state. For example, when processing a rod piece with a high degree of bending, the operator only needs to adjust the positions of the first member and the second member, so that the first clamping piece and the second clamping piece can be accurately clamped at the key position, and the rod piece can be ensured not to be displaced during processing. This double-clamping-point design not only enhances the clamping stability, but also improves the processing precision and quality, and significantly improves the practicality and operation convenience of the device. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a top view schematic diagram of the device for fixing a rod piece according to the embodiment of the present application.

[0040] Figure 2 It is a perspective view schematic diagram of part of components of the device for cutting a rod piece according to the embodiment of the present application.

[0041] Figure 3 It is a sectional view schematic diagram of a clamping piece according to the embodiment of the present application.

[0042] Figure 4 It is a sectional view schematic diagram of a pressing block according to the embodiment of the present application.

[0043] Figure 5 It is a perspective view schematic diagram of another part of components of the device for cutting a rod piece according to the embodiment of the present application. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0045] In actual construction, the bending angle of steel bars varies due to design requirements. The existing cutting device can usually only fix straight steel bars or fixed-angle bent steel bars, and cannot flexibly adapt to steel bars of any bending angle. This limitation causes the steel bars to be easily displaced or deformed during cutting, affecting the cutting precision. In addition, the existing device needs to be fixed and cut one by one when cutting multiple bent steel bars, and cannot process multiple steel bars at the same time, reducing the construction efficiency. Due to the inability to accurately fix the bent steel bars, the cross section of the cut steel bars may not be flat, affecting the subsequent connection quality, and even may cause structural safety hazards.

[0046] To solve the limitations of the prior art, the utility model provides a device capable of adapting to steel bars of any bending angle. The device can simultaneously fix multiple bent steel bars through flexible clamping design and provide stable cutting support, thereby significantly improving cutting precision and construction efficiency. The core of the device is its unique rotating structure and clamping mechanism, which can adapt to steel bars of different bending angles, ensuring the stability and efficiency of the cutting process. This innovative design not only meets the high requirements of modern building construction for cutting precision and efficiency, but also provides a reliable solution for complex steel bar processing.

[0047] Specifically, referring to Figure 1 , the utility model embodiment provides a device 10 for fixing a rod R, which can be a steel bar required in a civil engineering construction site, for example. The device 10 can include a first member 11, a first clamping member 12, a second member 13, and a second clamping member 14.

[0048] The first member 11 is annular, and the first clamping member 12 is fixedly arranged on the first member 11. The first clamping member 12 is used to clamp the rod R parallel to the plane in which the first member 11 is located in the radial direction of the rod R. Here, the plane in which the first member 11 is located refers to a plane defined by the annular shape of the first member 11. For example, as shown in Figure 1 , the plane is the plane in which the page of Figure 1 is located. Similar descriptions in the following are also the same, and will not be described in detail.

[0049] The second member 13 matches the inner circumferential surface of the first member 11, so that the first member 11 and the second member 13 can rotate relative to each other. As shown in Figure 1 , in the case where the first member 11 rotates relative to the second member 13, the first clamping member 12 will be converted from the position shown by the solid line to the position shown by the dashed line.

[0050] The second clamping member 14 is fixedly arranged on the second member 13. The second clamping member 14 is also used to clamp the rod R parallel to the plane in which the first member 11 is located in the radial direction of the rod R.

[0051] For the device 10 according to the embodiments of the present application, since the second member 13 is matched with the inner circumferential surface of the first member 11, the rotation of the two relative to each other can be realized in a more simple and easy manner. Moreover, the device 10 clamps at two positions on the rod R, and such a double clamping point design greatly enhances the stability of the rod R in the clamped state, so that the rod R is not easily displaced even under external force during the cutting or other processing processes described in detail below, thereby ensuring the precision and quality of processing. Most importantly, the device 10 can easily adapt to rod R with different bending angles. In actual application, no matter how the bending angle of the rod R changes, the clamping angle can be adjusted by rotating the first member 11 and the second member 13, so that the rod R can be stably clamped in any bending state. For example, when processing a rod R with a bending angle of 90 degrees, the operator can rotate the first member 11 and the second member 13 to the appropriate position, so that the first clamping piece 12 and the second clamping piece 14 can accurately clamp at two key positions of the rod R, thereby achieving effective fixation of the bent rod R. Figure 1 Such an effect is more intuitively shown in Figure 1 The bending angle of the rod R shown by the solid line is different from the bending angle of the rod R shown by the dashed line, but both are stably clamped, which can be achieved only by rotating the first member 11 and the second member 13 relative to each other.

[0052] In some embodiments of the present application, referring to Figure 2 The first clamping piece 12 and the second clamping piece 14 can each include a U-shaped plate 101, and the rod R is clamped by the two branches of the U-shaped plate 101.

[0053] The design of the U-shaped plate 101 makes the clamping process very intuitive and simple, and the operator only needs to place the rod R between the two branches of the U-shaped plate 101 to achieve basic clamping. Such a design does not require complex tools or adjustment steps, greatly reducing the operation difficulty and improving the work efficiency. The open design of the U-shaped plate 101 allows the rod R to quickly enter the clamping area, reducing the positioning time. For example, when processing multiple rods R, the operator can quickly place each rod R into the corresponding U-shaped plate 101 without adjusting the clamping position one by one, thereby significantly improving the efficiency of batch processing.

[0054] In some embodiments of the present application, referring to Figure 3 The longitudinal inner surface of the U-shaped plate 101 can be formed with a series of grooves 10G distributed along the longitudinal direction of the U-shaped plate, and the first clamping piece 12 and the second clamping piece 14 can each further include a sliding block 15, a screw rod 16 and a pressing piece 17.

[0055] The slider 15 is arranged in the groove 10G, the screw rod 16 is threadedly connected with the U-shaped plate 101 and rotationally connected with the slider 15, so that the slider 15 reciprocates in the groove 10G when the screw rod 16 is screwed, and the pressing piece 17 is connected to the slider 15 and used to press the rod R by the movement of the slider 15.

[0056] Through the screwing of the screw rod 16, the slider 15 can reciprocate in the groove 10G, so that the spacing between the two opposite pressing pieces 17 can be changed. This adjustability enables the device 10 to adapt to rod R of different radial sizes, such as from small steel bars to thicker steel pipes, and achieve stable clamping. The design of the groove 10G provides a stable movement path for the slider 15, ensuring the accuracy and consistency of the clamping action. This flexibility enables the device to face different sizes of rod R without replacing the clamping parts, greatly improving the versatility and scope of the device.

[0057] In some embodiments of the utility model, referring to Figure 4 , the pressing piece 17 can include: a first rod 171 rotationally connected to the slider 15 in a manner capable of rotating in the plane where the U-shaped plate 101 is located; a second rod 172 rotationally connected to one end of the first rod 171 in a manner capable of rotating in the plane where the U-shaped plate 101 is located; a third rod 173 rotationally connected to the other end of the first rod 171 in a manner capable of rotating in the plane where the U-shaped plate 101 is located; a first clamping block 174 rotationally connected to one end of the second rod 172 in a manner capable of rotating in the plane where the U-shaped plate 101 is located; a second clamping block 175 rotationally connected to the other end of the second rod 172 in a manner capable of rotating in the plane where the U-shaped plate 101 is located; a third clamping block 176 rotationally connected to one end of the third rod 173 in a manner capable of rotating in the plane where the U-shaped plate 101 is located; a fourth clamping block 177 rotationally connected to the other end of the third rod 173 in a manner capable of rotating in the plane where the U-shaped plate 101 is located; wherein the first clamping block 174, the second clamping block 175, the third clamping block 176 and the fourth clamping block 177 are used to contact the rod R to press the rod R.

[0058] Referring to Figure 3It is easy to understand that in the case of the above embodiment, the pressing member 17 can automatically adjust its position and angle according to the shape and size of the rod R, so as to realize close fitting with the rod R and ensure close contact with the surface of the rod R. Through automatic adjustment of multiple joints, the pressing member 17 can closely fit the surface of the rod R, thereby significantly improving the stability of clamping. Close fitting can effectively prevent the rod R from slipping or shifting during clamping, ensuring the stability of the machining process. The contact points of each clamping block with the rod R are uniformly distributed, which can ensure that the clamping force is uniformly distributed on the surface of the rod R. The automatic adjustment function of the pressing member 17 eliminates the need for manual adjustment of the clamping position by the operator, greatly simplifying the operation process. The operator only needs to place the rod R in the U-shaped plate 101, and the pressing member 17 will automatically adjust to the optimal position to achieve close fitting.

[0059] In some embodiments of the present application, referring to Figure 4 The contact surface of the first clamping block 174, the second clamping block 175, the third clamping block 176 and the fourth clamping block 177 in contact with the rod R can be formed with corrugations.

[0060] Designing corrugations on the contact surface can significantly increase the roughness of the contact surface, thereby enhancing the friction between the rod R. This enhanced friction makes clamping more stable, even in the case of a relatively smooth surface of the rod R, ensuring the reliability of clamping. The enhanced friction can effectively prevent the rod R from slipping or shifting during clamping. During the machining process, especially during cutting operations, the rod R can be subjected to a relatively large external force, and the corrugated design can ensure that the rod R remains stable during these operations, reducing processing errors caused by slipping.

[0061] Referring to Figure 5 The present application also provides a device 1 for cutting a rod R, which can include:

[0062] According to the device 10 for fixing the rod R according to the foregoing embodiments of the present application, wherein the second member 13 is annular;

[0063] The third member 20 is a circular plate that matches the inner peripheral surface of the second member 13, so that the third member 20 and the second member 13 can rotate relative to each other;

[0064] The cutter 30 is provided on the third member 20 so as to rotate with the third member 20, and the cutter 30 is used to cut the rod R.

[0065] Since the third member 20 matches the inner circumferential surface of the second member 13 and can rotate relative to each other, the cutter 30 can rotate to different angles together with the third member 20. This design enables the device 1 to flexibly adjust the cutting angle to adapt to the cutting requirements in different positions and directions. For example, when processing a curved rod R, the cutter 30 can be rotated to the appropriate angle to ensure the smooth progress of the cutting operation. The cutter 30 can be rotated to different angles, so that the operator can accurately adjust the cutting position and angle according to the specific cutting requirements. This accuracy is particularly important for rods R of complex shape, which can ensure that the cutting effect meets the design requirements.

[0066] In some embodiments of the present application, referring to Figure 5 and in combination with Figure 2 , the device 1 can further comprise:

[0067] a vertical plate 40, the vertical plate 40 being perpendicular to the plane where the third member 20 is located and being formed with a slot 40G;

[0068] a mounting plate 50, the mounting plate 50 being used for mounting the cutter 30;

[0069] a driver 60, the driver 60 being used for driving the mounting plate 50 to move in a direction perpendicular to the plane where the third member 20 is located under the guidance of the slot 40G.

[0070] The driver 60 can drive the mounting plate 50 to move in the vertical direction under the guidance of the slot 40G, thereby realizing the automatic feeding of the cutter 30. This automated operation reduces manual intervention and improves the stability and consistency of the cutting process. The driver 60 can accurately control the moving speed and position of the cutter 30 according to the preset program or operation instructions, ensuring the accuracy of the cutting process. This accurate control can significantly improve the cutting quality and reduce problems caused by human operation errors.

[0071] In some embodiments of the present application, referring to Figure 2 and in combination with Figure 5 , the third member 20 can be formed with a sliding groove 20G, the sliding groove 20G being used for guiding the vertical plate 40 to move in a direction parallel to the plane where the third member 20 is located.

[0072] The design of the sliding groove 20G enables the vertical plate 40 to move in a direction parallel to the plane where the third member 20 is located, thereby increasing the moving range of the cutter 30 in the horizontal direction. This multi-directional moving capability enables the cutter 30 to reach more positions on the rod R, expanding the selection range of the cutting position. The operator can flexibly adjust the position of the vertical plate 40 according to the specific cutting requirements, so that the cutter 30 can be accurately positioned to the required cutting position. This flexibility is particularly suitable for complex rods R that require multiple cutting at different positions.

[0073] In some embodiments of the utility model, see Figure 5 , the device 1 can further include a fourth member 70 in the shape of a ring, which matches the outer circumferential surface of the first member 11, so that the fourth member 70 and the first member 11 can rotate relative to each other, wherein the third member 20 is fixedly provided with a first pressing block 21, and the fourth member 70 is fixedly provided with a second pressing block 71, the first pressing block 21 is used to press against the rod R fixed by the device 10 by rotating the third member 20 and the second member 13 relative to each other, and the second pressing block 71 is used to press against the rod R fixed by the device 10 by rotating the fourth member 70 and the first member 11 relative to each other.

[0074] The first pressing block 21 and the second pressing block 71 press against the rod R by relative rotation of the third member 20 and the fourth member 70, respectively. This double pressing block design can exert clamping force on the rod R from different directions, significantly enhancing the stability of clamping. Even when the rod R is subjected to a larger external force, it can still be ensured that it will not be displaced or shaken. The stable clamping effect can ensure that the rod R remains stationary during cutting, reducing cutting errors caused by shaking or displacement of the rod R. This stability is particularly important for rods R that require high-precision cutting, and can significantly improve cutting quality.

[0075] In some embodiments of the utility model, see Figure 5 , the fourth member 70 can be provided with a scale line 72, which is used to determine the rotation angle of the first member 11 and the second member 13.

[0076] The provision of the scale line 72 enables the operator to visually see the relative rotation angle of the first member 11 and the second member 13. This visual design makes angle adjustment more accurate, and the operator can quickly adjust to the desired angle position according to the specific cutting requirements. Through the scale line 72, the operator can accurately record and repeat a specific cutting angle, ensuring consistency in each cutting operation. This is particularly important for batch processing that requires repeated cutting of the same task, and can significantly improve production efficiency and product quality. The accuracy of the scale line 72 enables the cutter 30 to be accurately positioned at the desired cutting angle, thereby improving cutting accuracy. In particular, when dealing with complex-shaped rods R, accurate angle control can ensure the accuracy of the cutting path, reducing cutting errors caused by angle deviation.

[0077] It should be noted that the technical solutions described in the embodiments of the utility model can be arbitrarily combined without conflict.

[0078] The above merely illustrates the specific implementation manners of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for securing a rod member, characterized by The device comprises: a first member in the shape of a circular ring; a first clamping member fixedly arranged on the first member, the first clamping member being used to clamp the rod member in the radial direction of the rod member and in parallel with the plane in which the first member is located; a second member matched with the inner circumferential surface of the first member, so that the first member and the second member can rotate relative to each other; a second clamping member fixedly arranged on the second member, the second clamping member also being used to clamp the rod member in the radial direction of the rod member and in parallel with the plane in which the first member is located.

2. The device for securing a lever according to claim 1, characterized in that Both the first clamping member and the second clamping member comprise a U-shaped plate, and the rod member is clamped by two branches of the U-shaped plate.

3. A device for securing a lever according to claim 2, characterized in that The longitudinal inner surface of the U-shaped plate is formed with a series of grooves distributed along the longitudinal direction of the U-shaped plate, and both the first clamping member and the second clamping member further comprise: a sliding block arranged in the groove; a screw threadedly matched with the U-shaped plate and rotationally connected with the sliding block, so as to reciprocally move the sliding block in the groove when the screw is screwed; a pressing member connected to the sliding block and used to press against the rod member through the movement of the sliding block.

4. The device for securing a lever according to claim 3, characterized in that The pressing member comprises: a first rod rotationally connected to the sliding block in a manner capable of rotating in the plane in which the U-shaped plate is located; a second rod rotationally connected to one end of the first rod in a manner capable of rotating in the plane in which the U-shaped plate is located; a third rod rotationally connected to the other end of the first rod in a manner capable of rotating in the plane in which the U-shaped plate is located; a first clamping block rotationally connected to one end of the second rod in a manner capable of rotating in the plane in which the U-shaped plate is located; a second clamping block rotationally connected to the other end of the second rod in a manner capable of rotating in the plane in which the U-shaped plate is located; a third clamping block rotationally connected to one end of the third rod in a manner capable of rotating in the plane in which the U-shaped plate is located; a fourth clamping block rotationally connected to the other end of the third rod in a manner capable of rotating in the plane in which the U-shaped plate is located; wherein the first clamping block, the second clamping block, the third clamping block and the fourth clamping block are used to contact the rod member to press against the rod member.

5. The device for securing a lever according to claim 4, characterized in that The contact surface of the first clamping block, the second clamping block, the third clamping block and the fourth clamping block that contacts the rod member is formed with corrugations.

6. An apparatus for cutting a rod member, characterized by The device comprises: the device for fixing a rod member according to any one of claims 1 to 5, wherein the second member is in the shape of a circular ring; a third member in the shape of a circular plate matched with the inner circumferential surface of the second member, so that the third member and the second member can rotate relative to each other; a cutter arranged on the third member so as to rotate with the third member, the cutter being used to cut the rod member.

7. The apparatus for cutting a rod member according to claim 6, wherein The device further comprises: a vertical plate perpendicular to the plane in which the third member is located and formed with a slot; a mounting plate used to mount the cutter; a driver used to drive the mounting plate to move in a direction perpendicular to the plane in which the third member is located under the guidance of the slot.

8. The apparatus for cutting a rod member according to claim 7, wherein The third member is formed with a sliding groove for guiding the stiles to move in a direction parallel to the plane in which the third member is located.

9. The apparatus for cutting a rod according to any one of claims 6 to 8, characterized in that, The device further comprises a fourth member in the shape of a circular ring, which is matched with the outer circumferential surface of the first member so that the fourth member and the first member can rotate relative to each other, wherein the third member is fixedly provided with a first pressing block, and the fourth member is fixedly provided with a second pressing block, the first pressing block is used to press against the rod fixed by the device by rotating the third member and the second member relative to each other, and the second pressing block is used to press against the rod fixed by the device by rotating the fourth member and the first member relative to each other.

10. The apparatus for cutting a rod member according to claim 9, wherein The fourth member is provided with a scale line for determining the rotation angle of the first member and the second member.

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