Cutting backer transformation method, cutting backer and height adjusting method of cutting backer

Abstract

The invention belongs to the technical field of material cutting, and discloses a cutting backer transformation method, a cutting backer and a height adjusting method of the cutting backer. The cutting equipment comprises a base and a backer body arranged on the base. The cutting backer transformation method comprises the following steps that a first connecting piece, a second connecting piece and a locking piece which are matched with the backer body to be transformed in specification are selected; the first connecting piece is rotationally connected with the second connecting piece, the locking piece is installed at the joint of the first connecting piece and the second connecting piece, and a recycling groove is defined between the base and the first connecting piece; the first connecting piece is connected with the base, and the second connecting piece is connected with the backer body; and the locking piece is configured to lock or unlock the position of the second connecting piece so as to limit or loosen the rotation of the second connecting piece. By means of the cutting backer transformation method, the height of an existing backer body can be adjusted, the universality of the cutting backer is improved, the cutting precision of the workpiece is guaranteed, and the cutting cost of the workpiece is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of material cutting, and in particular to a cutting backing modification method, a cutting backing and a height adjustment method thereof. Background Art

[0002] The cutting backing is usually installed on the bottom plate of the cutting equipment. By fixing and adjusting the position of the cutting backing on the bottom plate, it can ensure that the cutting tool cuts along the predetermined straight line. The cutting backing is widely used in the cutting of materials such as wood boards and tiles, making the material cutting process more convenient and accurate.

[0003] Existing cutting backstops mainly include three types: fixed cutting backstops, adjustable cutting backstops and quick-install parallel backstops. Once the fixed cutting backstop is installed on the bottom plate, its position and height are not easy to adjust. For cutting equipment equipped with a fixed cutting backstop, when cutting workpieces of different heights, the height of the cutting backstop cannot be adjusted, so it cannot be guaranteed that the cutting backstop and the workpiece always remain in a close state, which in turn affects the accuracy of the cutting tool's moving path, affects the cutting accuracy of the workpiece, and limits the scope of application of the cutting equipment. If you want to ensure the cutting accuracy of the workpiece, you need to replace cutting equipment of different specifications, which increases the cost of cutting the workpiece.

[0004] Therefore, there is an urgent need for a cutting backing modification method, a cutting backing and a height adjustment method thereof to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a cutting backrest modification method, a cutting backrest and a height adjustment method thereof, so that the height of the backrest body can be adjusted, thereby expanding the versatility of the cutting backrest, ensuring the cutting accuracy of the workpiece, and reducing the cutting cost of the workpiece.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In a first aspect, a cutting backing modification method is provided, wherein the cutting device comprises a base and a backing body arranged on the base, wherein the cutting backing modification method comprises the following steps:

[0008] Select a first connecting member, a second connecting member and a locking member that are compatible with the specifications of the backrest body to be modified;

[0009] The first connecting member is rotatably connected to the second connecting member, and a locking member is installed at the connection between the first connecting member and the second connecting member;

[0010] The first connecting member is connected to the base, and the second connecting member is connected to the backrest body, and a recovery groove is formed between the base and the first connecting member;

[0011] The locking member is configured to lock or unlock the position of the second connecting member to limit or relax the rotation of the second connecting member.

[0012] Optionally, the cutting device further comprises a third connecting member, and the backing body is arranged on the base through the third connecting member before the transformation;

[0013] Before connecting the first connecting member to the base, the method further includes the following steps: separating the third connecting member from the backing body;

[0014] Connecting the first connecting member to the base specifically includes the following steps: connecting the first connecting member to the third connecting member or connecting the first connecting member to the base.

[0015] In the second aspect, a cutting backrest is provided, which is modified using the above-mentioned cutting backrest modification method, and includes a backrest body, a first connecting member, a second connecting member and a locking member, wherein the first connecting member can be connected to the base of the cutting equipment, one end of the second connecting member is connected to the backrest body, and the other end is rotatably connected to the first connecting member, and the second connecting member can drive the backrest body to move when it rotates relative to the first connecting member; a recovery groove is formed between the base and the first connecting member, and the backrest body has a recovery position that moves to the recovery groove and a working position outside the recovery groove, and in the working position, the backrest body is used to support the workpiece to be cut; the locking member is arranged at the connection between the first connecting member and the second connecting member, and the locking member is configured to lock or unlock the position of the second connecting member to limit or loosen the rotation of the second connecting member.

[0016] Optionally, the cutting backrest also includes a connecting shaft, which passes through the first connecting member and the second connecting member and rotates with the first connecting member and the second connecting member; the locking member is threadedly connected to the connecting shaft, and the locking member has a locking state abutting against the first connecting member or the second connecting member and an unlocking state away from the first connecting member or the second connecting member. In the locked state, the angle between the second connecting member and the first connecting member is fixed, and in the unlocked state, the second connecting member can rotate relative to the first connecting member.

[0017] Optionally, an anti-slip portion is provided at one end of the connecting shaft away from the locking member, and in the locked state, the anti-slip portion abuts against the first connecting member or the second connecting member.

[0018] Optionally, the connecting shaft includes a screw portion, and the locking member is provided with a threaded hole that matches the thread of the screw portion, and the screw portion passes through the threaded hole.

[0019] Optionally, the cutting backrest also includes a connecting shaft, which is passed through the first connecting member and the second connecting member and rotates with the first connecting member and the second connecting member; the locking member includes a locking ring and a telescopic rod, the locking ring is sleeved on the connecting shaft and fixedly connected to the second connecting member, and the locking ring is provided with a plurality of locking grooves arranged at intervals along its circumference, one end of the telescopic rod is connected to the first connecting member, and the other end can be inserted into or disengaged from any locking groove.

[0020] Optionally, a first through hole is provided on the first connecting member, a second through hole is provided on the second connecting member, the connecting shaft passes through the first through hole and the second through hole, and is gap-matched with the hole wall of the first through hole and the hole wall of the second through hole.

[0021] Optionally, a plurality of the first connecting members, the second connecting members and the locking members are provided, the plurality of second connecting members are arranged at intervals along the extension direction of the backrest body, and the plurality of first connecting members and the plurality of locking members correspond one-to-one to the plurality of second connecting members.

[0022] In a third aspect, a method for adjusting the height of a cutting backing is provided, using the above-mentioned cutting backing, specifically comprising the following steps:

[0023] Unlocking the position of the second connecting member using the locking member;

[0024] The second connecting member is rotated, and the second connecting member drives the backrest body to move out of the recovery groove until the backrest body moves to the working position;

[0025] The position of the second connecting member is locked by using the locking member.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention provides a cutting backrest modification method, a cutting backrest and a height adjustment method thereof. When a locking member unlocks the position of a second connecting member, during the rotation of the second connecting member relative to the first connecting member, the second connecting member can drive the backrest body connected thereto to move relative to the base, so that the distance between the backrest body and the base changes, thereby realizing the adjustment of the backrest body height, so that the backrest body can be suitable for supporting workpieces of different heights, expanding the versatility of the cutting backrest, and ensuring the cutting accuracy of the workpiece; moreover, by using the cutting backrest modification method provided by the present invention to modify the existing cutting backrest, it is possible to meet the cutting requirements of different workpieces without replacing the cutting backrest and the cutting equipment, thereby reducing the cost of workpiece cutting. After the second connecting member drives the backrest body to rotate to a suitable position, the position of the second connecting member is locked by using the locking member, and the second connecting member can no longer rotate, and the backrest body will stably remain at the current height to avoid the movement of the backrest body during the cutting process, which affects the cutting accuracy of the workpiece. When the cutting operation is completed, the backrest body can be moved into the recovery tank by rotating the second connecting piece, so as to reduce the space occupied by the cutting backrest, avoid the backrest body from being damaged by accidental contact, and ensure the safety of the cutting backrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the cutting backer before modification provided by the present invention;

[0029] Figure 2 is a side view of the cutting backer before modification provided by the present invention;

[0030] Figure 3 It is a first structural schematic diagram of a cutting backer provided by the present invention when the backer body is located at a working position;

[0031] Figure 4 It is a second structural schematic diagram of the cutting backer provided by the present invention when the backer body is located in the working position (part of the backer body is hidden);

[0032] Figure 5 It is a side view of the backing body of the cutting backing provided by the present invention located in the recovery tank;

[0033] Figure 6 It is a first side view of the cutting backer provided by the present invention when the backer body is located in the working position;

[0034] Figure 7 It is a second side view of the cutting backer provided by the present invention when the backer body is located in the working position;

[0035] Figure 8 It is a third structural schematic diagram of the cutting backer provided by the present invention when the backer body is located in the working position (part of the backer body is hidden);

[0036] Fig. 9 It is a plan view of the locking member for cutting backing provided by the present invention;

[0037] Fig.10 It is a first flow chart of the cutting backing transformation method provided by the present invention;

[0038] Fig.11 It is a first flow chart of the cutting backing transformation method provided by the present invention;

[0039] Fig.12 The present invention is a flowchart of a method for adjusting the height of a cutting backing provided by the present invention.

[0040] In the figure:

[0041] 100. base; 200. third connecting member;

[0042] 1. The main body of the mountain;

[0043] 2. A first connecting member;

[0044] 3. A second connecting member;

[0045] 4. Locking piece; 41. Locking ring; 411. Locking groove; 42. Telescopic rod;

[0046] 5. Connecting shaft; 51. Anti-slip portion; 52. Screw portion;

[0047] 6. Recovery tank. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0052] Embodiment 1

[0053] like Figures 1 to 11 As shown, this embodiment provides a cutting backrest modification method, so that the height of the backrest body 1 can be adjusted, which expands the versatility of the cutting backrest, ensures the cutting accuracy of the workpiece, and reduces the cutting cost of the workpiece.

[0054] See also Fig.11 The cutting device includes a base 100 and a backing body 1 disposed on the base 100. The cutting backing modification method includes the following steps:

[0055] Select a first connecting member 2, a second connecting member 3 and a locking member 4 that are compatible with the specifications of the backrest body 1 to be modified;

[0056] The first connecting member 2 is rotatably connected to the second connecting member 3, and the locking member 4 is installed at the connection between the first connecting member 2 and the second connecting member 3. A recovery groove 6 is formed between the base 100 and the first connecting member 2;

[0057] Connect the first connecting member 2 to the base 100 and the second connecting member 3 to the backing body 1;

[0058] The locking member 4 is configured to lock or unlock the position of the second connecting member 3 to restrict or relax the rotation of the second connecting member 3 .

[0059] The cutting backrest modification method provided in this embodiment is that when the locking member 4 unlocks the position of the second connecting member 3, during the rotation of the second connecting member 3 relative to the first connecting member 2, the second connecting member 3 can drive the backrest body 1 connected thereto to move relative to the base 100, so that the distance between the backrest body 1 and the base 100 changes, thereby realizing the adjustment of the height of the backrest body 1, so that the backrest body 1 can be used to support workpieces of different heights, expanding the versatility of the cutting backrest and ensuring the cutting accuracy of the workpiece; moreover, by using the cutting backrest modification method provided in this embodiment to modify the existing cutting backrest, it is possible to meet the cutting requirements of different workpieces without replacing the cutting backrest and cutting equipment, thereby reducing the cost of workpiece cutting. When the second connecting member 3 drives the backrest body 1 to rotate to a suitable position, the position of the second connecting member 3 is locked by using the locking member 4, and the second connecting member 3 can no longer rotate, and the backrest body 1 will stably remain at the current height to avoid the backrest body 1 from moving during the cutting process, which affects the cutting accuracy of the workpiece. When the cutting operation is completed, the backrest body 1 can be moved into the recovery groove 6 by rotating the second connecting member 3, so as to reduce the space occupied by the cutting backrest, and also avoid the backrest body 1 from being damaged by accident, thereby ensuring the safety of the cutting backrest.

[0060] Specifically, the specifications of the first connecting member 2 and the second connecting member 3 are determined according to parameters such as the weight, shape and material of the backrest body 1. While determining the specifications of the first connecting member 2 and the second connecting member 3, it is also necessary to determine the positions at which the first connecting member 2 and the second connecting member 3 are connected to the backrest body 1, so that the backrest body 1 can be firmly installed on the base 100 after being connected to the base 100 through the first connecting member 2 and the second connecting member 3.

[0061] Exemplarily, the first connecting member 2 and the second connecting member 3 are both plates made of steel, the backrest body 1 is made of steel pipe, and the first connecting member 2 and the base 100, and the second connecting member 3 and the backrest body 1 are all welded. In other embodiments, the first connecting member 2 and the second connecting member 3 are both made of steel pipe.

[0062] Optionally, see Figure 1 and Figure 2 The cutting device further includes a third connecting member 200. Before the modification, the backing body 1 is arranged on the base 100 through the third connecting member 200; Fig.11Before connecting the first connecting member 2 to the base 100, the following steps are also included: separating the third connecting member 200 from the backrest body 1 to avoid conflict between the positions of the second connecting member 3 and the third connecting member 200, thereby affecting the connection between the second connecting member 3 and the backrest body 1; connecting the first connecting member 2 to the base 100 specifically includes the following steps: connecting the first connecting member 2 to the third connecting member 200 or connecting the first connecting member 2 to the base 100. Under the condition that the positions of the first connecting member 2 and the third connecting member 200 do not conflict, the first connecting member 2 can be directly connected to the base 100 to reduce the distance between the backrest body 1 and the base 100. On the one hand, the structure of the entire cutting device can be more compact and the space occupied by the cutting backrest can be reduced; on the other hand, the bending moment applied to the base 100 by the backrest body 1 can be reduced, and the external force on the base 100 can be reduced, thereby ensuring the overall stability of the cutting device; furthermore, the smaller the distance between the backrest body 1 and the base 100, the smaller the bending stress and torsion stress on the first connecting member 2 and the second connecting member 3, effectively avoiding the occurrence of fatigue fracture at the first connecting member 2 and the second connecting member 3, and ensuring the firmness of the connection between the backrest body 1 and the base 100. When it is inconvenient for the first connecting member 2 to be directly connected to the base 100 or the positions of the first connecting member 2 and the third connecting member 200 conflict, the first connecting member 2 can be connected to the third connecting member 200, so that the modified backrest body 1 can be smoothly connected to the base 100.

[0063] Exemplarily, the third connecting member 200 is a plate made of steel, and the backrest body 1 is a steel pipe. To facilitate the connection between the first connecting member 2 and the third connecting member 200, the first connecting member is also a plate made of steel, and the third connecting member 200 and the backrest body 1, and the third connecting member 200 and the first connecting member 2 are welded. Specifically, before the first connecting member 2 is connected to the base 100, the weld between the third connecting member 200 and the backrest body 1 can be cut off by saw blade cutting, laser cutting, etc., so as to separate the third connecting member 200 and the backrest body 1.

[0064] Embodiment 2

[0065] like Figures 1 to 9As shown, the present embodiment provides a cutting backrest, which is modified using the cutting backrest modification method of the first embodiment, and includes a backrest body 1, a first connecting member 2, a second connecting member 3 and a locking member 4. The first connecting member 2 can be connected to the base 100 of the cutting equipment, one end of the second connecting member 3 is connected to the backrest body 1, and the other end is rotatably connected to the first connecting member 2. When the second connecting member 3 rotates relative to the first connecting member 2, it can drive the backrest body 1 to move; a recovery groove 6 is formed between the base 100 and the first connecting member 2, and the backrest body 1 has a recovery position that moves to the recovery groove 6 and a working position outside the recovery groove 6. In the working position, the backrest body 1 is used to support the workpiece to be cut; the locking member 4 is arranged at the connection between the first connecting member 2 and the second connecting member 3, and the locking member 4 is configured to lock or unlock the position of the second connecting member 3 to limit or relax the rotation of the second connecting member 3.

[0066] See also Figure 5 , Figure 6 and Figure 7 The cutting backrest provided in this embodiment, when the locking piece 4 unlocks the position of the second connecting piece 3, the second connecting piece 3 can drive the backrest body 1 to move to a suitable height, that is, the working position during rotation, thereby completing the adjustment of the height of the backrest body 1, so that the backrest body 1 can be suitable for cutting workpieces of different heights, expanding the versatility of the cutting backrest; when the second connecting piece 3 drives the backrest body 1 to rotate to the working position, the position of the second connecting piece 3 can be locked by using the locking piece 4, and the backrest body 1 can be stably maintained at the current height, which is convenient for stably supporting the workpiece in subsequent cutting operations; when the cutting operation is completed, the backrest body 1 is moved to the recovery groove 6, which can not only reduce the space occupied by the cutting backrest, but also prevent the backrest body 1 from being accidentally damaged, thereby ensuring the safety of the cutting backrest.

[0067] In an alternative embodiment, see Figure 4The cutting backrest also includes a connecting shaft 5, which is passed through the first connecting member 2 and the second connecting member 3, and is rotatably matched with the first connecting member 2 and the second connecting member 3; a locking member 4 is threadedly connected to the connecting shaft 5, and the locking member 4 has a locking state abutting against the first connecting member 2 or the second connecting member 3 and an unlocking state away from the first connecting member 2 or the second connecting member 3. In the locked state, the angle between the second connecting member 3 and the first connecting member 2 is fixed, and in the unlocked state, the second connecting member 3 can rotate relative to the first connecting member 2. The locking member 4 is threadedly connected to the connecting shaft 5. The locking member 4 can be switched between the locked state and the unlocked state by twisting the locking member 4, which is convenient and quick to operate. Moreover, in the locked state, after the locking member 4 abuts against the first connecting member 2 or the second connecting member 3, the thread between the locking member 4 and the connecting shaft 5 can also keep the locking member 4 and the first connecting member 2 or the second connecting member 3 in a tight state, so that the friction force between the locking member 4 and the first connecting member 2 or the second connecting member 3 can be greater than the rotational force between the first connecting member 2 and the second connecting member 3, thereby ensuring that the position of the second connecting member 3 can be locked. In the unlocked state, the locking member 4 is away from the first connecting member 2 or the second connecting member 3, and the friction force between the locking member 4 and the first connecting member 2 or the second connecting member 3 disappears, so that the second connecting member 3 can rotate smoothly.

[0068] Further, see Figure 4 and Figure 8 An anti-slip portion 51 is provided at one end of the connecting shaft 5 away from the locking member 4. When in the locked state, the anti-slip portion 51 abuts against the first connecting member 2 or the second connecting member 3, and the first connecting member 2 and the second connecting member 3 are clamped between the anti-slip portion 51 and the locking member 4, which is beneficial to limit the rotation of the second connecting member 3; moreover, the anti-slip portion 51 can also prevent the connecting shaft 5 from being separated from the first connecting member 2 and the second connecting member 3 when in the unlocked state, thereby ensuring the stability of the connection between the first connecting member 2 and the second connecting member 3.

[0069] In this embodiment, refer to Figure 4 and Figure 8 The connecting shaft 5 includes a screw portion 52, and the locking member 4 is provided with a threaded hole (not shown in the figure) that is threadedly matched with the screw portion 52. The screw portion 52 is inserted into the threaded hole to realize the threaded connection between the connecting shaft 5 and the locking member 4.

[0070] Exemplarily, the connecting shaft 5 is a bolt, the screw rod portion 52 is the rod portion of the bolt, and the anti-detachment portion 51 is the head of the bolt. In other embodiments, the connecting shaft 5 is a screw rod, and the anti-detachment portion 51 is a nut that matches the screw rod thread.

[0071] For example, see Figure 4The locking member 4 is a butterfly nut. The butterfly nut head is designed with a guide groove, which is convenient for users to tighten the butterfly nut by hand, eliminating the cumbersome steps of using tools such as wrenches, improving the operating efficiency, and making the switching process between the unlocked state and the locked state easier and faster; the butterfly nut also has a high torque resistance, can withstand a large torque force, ensure the stability of the connection between the locking member 4 and the connecting shaft 5, and make the connection between the first connecting member 2 and the second connecting member 3 more reliable.

[0072] In this embodiment, a first through hole is provided on the first connecting member 2, and a second through hole is provided on the second connecting member 3. The connecting shaft 5 is penetrated through the first through hole and the second through hole, and is gap-matched with the hole wall of the first through hole and the hole wall of the second through hole, so that the connecting shaft 5 can rotate smoothly in the first through hole and the second through hole, thereby realizing the rotational connection between the connecting shaft 5 and the first connecting member 2 and the second connecting member 3.

[0073] In another alternative embodiment, see Fig. 9 The cutting backrest also includes a connecting shaft 5, which is inserted into the first connecting member 2 and the second connecting member 3 and rotates with the first connecting member 2 and the second connecting member 3; the locking member 4 includes a locking ring 41 and a telescopic rod 42, the locking ring 41 is sleeved on the connecting shaft 5 and fixedly connected to the second connecting member 3, and a plurality of locking grooves 411 arranged at intervals along its circumference are provided on the locking ring 41, one end of the telescopic rod 42 is connected to the first connecting member 2, and the other end can be inserted into or separated from any locking groove 411. When the telescopic rod 42 is inserted into the locking groove 411, the locking ring 41 can no longer rotate under the restriction of the telescopic rod 42, and then the second connecting member 3 can no longer rotate, and the position of the second connecting member 3 is locked; when the position of the second connecting member 3 needs to be unlocked, the telescopic rod 42 is pressed to shorten the telescopic rod 42 and separate from the corresponding locking groove 411, and the locking ring 41 can continue to rotate; when the backrest body 1 moves to a suitable height, the telescopic rod 42 is driven to extend and insert into the corresponding locking groove 411 to lock the position of the second connecting member 3 again.

[0074] Optionally, see Figure 3 , the first connecting member 2, the second connecting member 3 and the locking member 4 are all provided in plurality, and the plurality of second connecting members 3 are arranged at intervals along the extension direction of the backrest body 1, and the plurality of first connecting members 2 and the plurality of locking members 4 correspond to the plurality of second connecting members 3 one by one, thereby increasing the number of connection points between the backrest body 1 and the base 100, and ensuring the firmness of the backrest body 1 installed on the base 100. When the backrest body 1 is long, such a setting can also prevent the backrest body 1 from bending during the height adjustment process, and ensure the firmness of the backrest body 1 structure.

[0075] For example, see Fig. 9There are two first connecting members 2 , two second connecting members 3 and two locking members 4 , and they are symmetrically arranged along the extension direction of the backrest body 1 .

[0076] Embodiment 3

[0077] like Fig.12 As shown, this embodiment provides a method for adjusting the height of a cutting backing, using the cutting backing of the second embodiment, specifically comprising the following steps:

[0078] The position of the second connecting member 3 is unlocked by the locking member 4 .

[0079] Specifically, the locking member 4 is screwed in the reverse direction, the locking member 4 is moved away from the first connecting member 2 or the second connecting member 3 , and the locking member 4 is switched to the unlocking position.

[0080] The second connecting member 3 is rotated, and the second connecting member 3 drives the backing body 1 to move out of the recovery groove 6 until the backing body 1 moves to the working position. At this time, the height of the backing body 1 is adapted to the workpiece to be cut, and the backing body 1 can stably support the workpiece to be cut.

[0081] The position of the second connecting member 3 is locked by the locking member 4 .

[0082] Specifically, the locking member 4 is screwed forward, and gradually approaches the first connecting member 2 or the second connecting member 3 until the locking member 4 abuts against the first connecting member 2 or the second connecting member 3 , at which time the workpiece can be cut.

[0083] Furthermore, after the workpiece is cut, the locking member 4 is switched to the unlocked state, and the second connecting member 3 is rotated to move the backrest body 1 into the recovery groove 6, and then the locking member 4 is switched to the locked state to ensure that the backrest body 1 can be stably located in the recovery groove 6.

[0084] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for modifying a cutting backing, wherein the cutting device comprises a base (100) and a backing body (1) arranged on the base (100), characterized in that: The cutting backing transformation method comprises the following steps: Selecting a first connecting member (2), a second connecting member (3) and a locking member (4) that are compatible with the specifications of the backrest body (1) to be modified; The first connecting member (2) and the second connecting member (3) are rotatably connected, and the locking member (4) is installed at the connection between the first connecting member (2) and the second connecting member (3); The first connecting member (2) is connected to the base (100), and the second connecting member (3) is connected to the backrest body (1), and a recovery groove (6) is formed between the base (100) and the first connecting member (2); Wherein, the locking member (4) is configured to lock or unlock the position of the second connecting member (3) so as to restrict or loosen the rotation of the second connecting member (3).

2. The cutting backing modification method according to claim 1, characterized in that: The cutting device further comprises a third connecting member (200), and before the modification, the backrest body (1) is arranged on the base (100) via the third connecting member (200); Before connecting the first connecting member (2) to the base (100), the following steps are also included: separating the third connecting member (200) from the backrest body (1); Connecting the first connecting member (2) to the base (100) specifically comprises the following steps: connecting the first connecting member (2) to the third connecting member (200) or connecting the first connecting member (2) to the base (100).

3. A cutting backer, characterized in that: The cutting backrest is modified by the cutting backrest modification method as claimed in claim 1 or 2, comprising a backrest body (1), a first connecting member (2), a second connecting member (3) and a locking member (4), wherein the first connecting member (2) can be connected to the base (100) of the cutting device, one end of the second connecting member (3) is connected to the backrest body (1), and the other end is rotatably connected to the first connecting member (2), and when the second connecting member (3) rotates relative to the first connecting member (2), it can drive the backrest body (1) to move; the base (100) and the second connecting member (3) are connected to the cutting device base (100), and the second connecting member (3) is ... The recovery groove (6) is formed between the first connecting members (2), and the backrest body (1) has a recovery position that moves into the recovery groove (6) and a working position that is located outside the recovery groove (6). When in the working position, the backrest body (1) is used to support the workpiece to be cut; the locking member (4) is arranged at the connection between the first connecting member (2) and the second connecting member (3), and the locking member (4) is configured to lock or unlock the position of the second connecting member (3) to limit or loosen the rotation of the second connecting member (3).

4. The cutting backing according to claim 3, characterized in that: The cutting backrest further comprises a connecting shaft (5), wherein the connecting shaft (5) is passed through the first connecting member (2) and the second connecting member (3), and is rotatably matched with the first connecting member (2) and the second connecting member (3); the locking member (4) is threadedly connected to the connecting shaft (5), and the locking member (4) has a locking state abutting against the first connecting member (2) or the second connecting member (3) and an unlocking state away from the first connecting member (2) or the second connecting member (3); in the locking state, the angle between the second connecting member (3) and the first connecting member (2) is fixed; in the unlocking state, the second connecting member (3) can rotate relative to the first connecting member (2).

5. The cutting backing according to claim 4, characterized in that: An anti-slip portion (51) is provided at one end of the connecting shaft (5) away from the locking member (4); in the locked state, the anti-slip portion (51) abuts against the first connecting member (2) or the second connecting member (3).

6. The cutting backing according to claim 4, characterized in that: The connecting shaft (5) comprises a screw rod portion (52), the locking member (4) is provided with a threaded hole threadably matched with the screw rod portion (52), and the screw rod portion (52) is inserted into the threaded hole.

7. The cutting backer according to claim 3, characterized in that: The cutting backrest also includes a connecting shaft (5), the connecting shaft (5) is passed through the first connecting member (2) and the second connecting member (3), and is rotatably matched with the first connecting member (2) and the second connecting member (3); the locking member (4) includes a locking ring (41) and a telescopic rod (42), the locking ring (41) is sleeved on the connecting shaft (5) and is fixedly connected to the second connecting member (3), and the locking ring (41) is provided with a plurality of locking grooves (411) arranged at intervals along its circumference, one end of the telescopic rod (42) is connected to the first connecting member (2), and the other end can be inserted into or disengaged from any of the locking grooves (411).

8. The cutting backing according to any one of claims 4 to 7, characterized in that: The first connecting member (2) is provided with a first through hole, the second connecting member (3) is provided with a second through hole, the connecting shaft (5) is passed through the first through hole and the second through hole, and is gap-matched with the hole wall of the first through hole and the hole wall of the second through hole.

9. The cutting backing according to claim 3, characterized in that: The first connecting member (2), the second connecting member (3) and the locking member (4) are each provided in plurality, and the plurality of second connecting members (3) are arranged at intervals along the extension direction of the backrest body (1), and the plurality of first connecting members (2) and the plurality of locking members (4) correspond one-to-one to the plurality of second connecting members (3).

10. A method for adjusting the height of a cutting backing, characterized in that: Using the cutting backing as described in any one of claims 3 to 9 specifically comprises the following steps: Unlocking the position of the second connecting member (3) by using the locking member (4); Rotating the second connecting member (3), the second connecting member (3) drives the backing body (1) to move out of the recovery groove (6) until the backing body (1) moves to the working position; The locking member (4) is used to lock the position of the second connecting member (3).

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