A wire marking fixture and a wire marking method

Abstract

The present invention discloses a wire marking fixture and a wire marking method, belonging to the technical field of wire marking. The wire marking fixture includes a support block for carrying a wire body, two driven positioning components arranged on both sides of the support block along a first direction, and a cam mechanism. The two driven positioning components can move towards or away from each other along the first direction. The driven positioning components are provided with guide grooves and positioning surfaces, and the two positioning surfaces are used to correspondingly abut against the end faces of the two outer shells facing each other. The cam mechanism includes two cam followers, and the two cam followers are correspondingly slidably connected to the two guide grooves. The cam mechanism moves to drive the two driven positioning components to move equidistantly respectively by the two cam followers. By adjusting the position of the cam mechanism according to the length of the wire and adjusting the distance between the two driven positioning components, the wire is straightened to achieve the positioning of wires with different lengths. It is ensured that the two positioning surfaces are always symmetric on both sides of the support block, meeting the requirement of centering marking for wires with different lengths.

Description

Technical Field

[0001] The present invention relates to the technical field of wire marking, and particularly to a wire marking fixture and a wire marking method. Background Art

[0002] Through marking, various characters, symbols, patterns, etc. can be marked on the wire, which is of great significance for product anti-counterfeiting. In the related art, the wire is fixed through a fixture. Specifically, the fixture includes a carrier and a positioning reference surface. The wire is placed on the carrier, and one end is positioned with the positioning reference surface. Then, the wire is marked in the center by a marking machine. However, the above fixture can only meet the marking of wires with the same length. When the lengths of the wires are different or the length tolerances are large, the middle position of the wire will change relative to the positioning reference surface, resulting in marking skew and making it difficult to meet the product requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a wire marking fixture and a wire marking method, which can perform centered marking on wires with different lengths.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] On the one hand, a wire marking fixture is provided. The wire includes a wire body and shells provided at both ends of the wire body, and the fixture includes:

[0006] A support block for carrying the wire body;

[0007] Two driven positioning components are provided on both sides of the support block along a first direction, and the two driven positioning components can move towards or away from each other along the first direction. The driven positioning components are provided with guide grooves and positioning surfaces, and the two positioning surfaces are used to correspondingly abut against the end faces of the two shells facing each other; and

[0008] A cam mechanism includes two cam followers. The two cam followers are correspondingly slidably connected to the two guide grooves. The cam mechanism moves so that the two cam followers respectively drive the two driven positioning components to move equidistantly. The cam mechanism has a first limit position and a second limit position.

[0009] In some possible implementation manners, the cam mechanism moves along a second direction, the first direction and the second direction are perpendicular, and the cam mechanism can be located at a position between the first limit position and the second limit position. When located at the first limit position, the distance between the two driven positioning components is the largest, and when located at the second limit position, the distance between the two driven positioning components is the smallest.

[0010] In some possible embodiments, the driven positioning assembly includes a mounting plate and a positioning block detachably connected to the mounting plate, the mounting plate is provided with the guide groove, the side of the baffle on the positioning block facing away from the support block is the positioning surface, and the baffle of the positioning block is provided with a receiving groove and a sliding groove on both sides, the receiving groove is adapted to the shape of the outer shell and is used to accommodate the outer shell, the support block can be slidably connected to the sliding groove and its end can abut against the side of the baffle facing away from the positioning surface.

[0011] In some possible implementations, the cam mechanism further includes a connecting plate and a first driving assembly, the two cam followers are connected to the connecting plate, and the first driving assembly can drive the connecting plate to drive the two cam followers to move.

[0012] In some possible embodiments, a base is further included, the first driving assembly includes an elastic member, the cam mechanism is movably connected to the base, two ends of the elastic member are respectively connected to the base and the cam mechanism, and when the elastic member is reset, it drives the cam mechanism to move toward the first extreme position to straighten the wire.

[0013] In some possible implementations, the cam mechanism further includes a locking assembly, and the locking assembly is capable of locking the connecting plate at the second extreme position.

[0014] In some possible embodiments, the cam mechanism further includes an operating handle connected to the connecting plate; and / or the cam mechanism further includes a second drive assembly drivingly connected to the connecting plate for driving the cam mechanism to move toward the second extreme position.

[0015] In some possible implementations, the following further includes:

[0016] The first guide mechanism comprises a first guide member and two first sliding members slidably connected to the first guide member, the first guide member is extended along the first direction, and the two driven positioning assemblies are correspondingly connected to the two first sliding members; and / or

[0017] The second guide mechanism comprises a second guide member and a second sliding member slidably connected to the second guide member, the cam mechanism moves along the second direction, the second guide member is extended along the second direction, and the cam mechanism is connected to the second sliding member.

[0018] On the other hand, a wire marking method is provided, using the wire marking fixture as described above, the wire marking method comprising:

[0019] The cam mechanism is controlled to be at the second extreme position so that the distance between the two driven positioning components is minimized;

[0020] The end faces of the two outer shells facing each other are correspondingly abutted against the positioning faces of the two driven positioning components;

[0021] Control the cam mechanism to move towards the first limit position until the wire is straightened and the wire body is carried on the support block;

[0022] Mark the wire body.

[0023] In some possible implementation manners, the cam mechanism further includes a connecting plate, a first driving component, a locking component, and an operating handle. The two cam followers are connected to the connecting plate. The first driving component can drive the connecting plate to drive the two cam followers to move. The locking component can lock the connecting plate at the second limit position. The operating handle is connected to the connecting plate. The wire marking method further includes:

[0024] Grip and push the operating handle to drive the connecting plate to drive the two cam followers to move to the second limit position; control the locking component to lock the connecting plate so that the connecting plate and the cam followers are locked at the second limit position;

[0025] After installing the wire, control the locking component to unlock the connecting plate, and the first driving component drives the connecting plate to move towards the first limit position until the wire is straightened and the wire body is carried on the support block.

[0026] Advantages of the present invention:

[0027] A wire marking fixture and a wire marking method provided by the present invention adjust the position of the cam mechanism according to the length of the wire body, adjust the distance between the two driven positioning components, straighten the wire, and make the end faces of the two outer shells facing each other abut against the corresponding positioning faces of the driven positioning components, realizing the positioning of wires with different lengths. Since the two driven positioning components perform bilateral positioning on the wire, and the two driven positioning components move towards or away from each other equidistantly at the same time, ensuring that the two positioning faces are always symmetric on both sides of the support block, that is, symmetrically move on both sides of the center position of the wire. After the wire is straightened, the middle part of the wire body is always located in the middle position of the support block, meeting the requirement of centering marking for wires of different lengths. By simultaneously driving the equidistant and symmetric movement of the two driven positioning components through the cam mechanism, the symmetry of the two positioning faces is ensured, and the number of drivers is reduced. Specifically, the first limit position and the second limit position are adjusted according to the possible length of the wire, and the distance between the two driven positioning components is adjusted accordingly. Description of the Drawings

[0028] Figure 1 is a schematic diagram of a wire marking fixture in a state provided by a specific implementation manner of the present invention;

[0029] Figure 2 It is a schematic diagram of another state of the wire marking fixture provided by the specific embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the positioning block provided by the specific embodiment of the present invention;

[0031] Figure 4 It is a flowchart of the wire marking method provided by the specific embodiment of the present invention.

[0032] In the figure:

[0033] 1. Support block; 11. Limit groove;

[0034] 2. Driven positioning assembly; 21. Mounting plate; 211. Guide groove; 22. Positioning block; 221. Baffle; 2211. Positioning surface; 2212. Through hole; 222. Slide groove; 223. Accommodation groove;

[0035] 3. Cam mechanism; 31. Cam follower; 32. Connecting plate; 321. Slot; 33. Locking assembly; 331. Base; 332. Elastic bolt; 34. First driving assembly; 341. Elastic member; 342. First connecting column; 343. Second connecting column; 345. Positioning plate; 35. Operating handle; 36. Protective cover;

[0036] 4. First guiding mechanism; 41. First guiding member; 42. First sliding member;

[0037] 5. Second guiding mechanism; 51. Second guiding member; 52. Second sliding member;

[0038] 6. Base; 61. Mounting hole; 7. Adapter plate;

[0039] 100. Wire; 101. Wire body; 102. Outer shell. Specific Embodiment

[0040] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.

[0041] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0043] The wire 100 includes a wire body 101 and outer shells 102 provided at both ends of the wire body 101. This embodiment provides a wire marking jig, as Figures 1 - 3 shown, including a cam mechanism 3, a support block 1, and two driven positioning components 2. Among them, the support block 1 is used to carry the wire body 101. The two driven positioning components 2 are arranged on both sides of the support block 1 along the first direction, and the two driven positioning components 2 can move towards or away from each other along the first direction. The driven positioning component 2 is provided with a guide groove 211 and a positioning surface 2211, and the two positioning surfaces 2211 are used to correspondingly abut against the end faces of the two outer shells 102 facing each other. The cam mechanism 3 includes two cam followers 31, and the two cam followers 31 are correspondingly slidably connected to the two guide grooves 211. The cam mechanism 3 moves to drive the two driven positioning components 2 to move respectively by the two cam followers 31. The cam mechanism 3 has a first limit position and a second limit position, which respectively make the wire marking jig in different working states.

[0044] The cam mechanism 3 moves along the second direction, the first direction and the second direction are perpendicular, and the cam mechanism 3 can be located between the first extreme position and the second extreme position. When the cam mechanism 3 is located at the first extreme position, the distance between the two driven positioning components 2 is the largest, and when the cam mechanism 3 is located at the second extreme position, the distance between the two driven positioning components 2 is the smallest. When the cam mechanism 3 is located at multiple positions between the first extreme position and the second extreme position, it corresponds to multiple linearly changing distances between the two driven positioning components 2, so as to be applicable to multiple lengths of wire 100. In this embodiment, the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction. The third direction is perpendicular to the first direction and the second direction, respectively, and the third direction is the vertical direction.

[0045] The position of the cam mechanism 3 is adjusted according to the length of the wire body 101, and the spacing between the two driven positioning components 2 is adjusted, so that the wire 100 is straightened and the end faces of the two shells 102 facing each other are abutted on the positioning surface 2211 of the corresponding driven positioning component 2, thereby realizing the positioning of wires 100 of different lengths. Since the two driven positioning components 2 position the wire 100 on both sides, and the two driven positioning components 2 move equidistantly toward or away from each other at the same time, it is ensured that the two positioning surfaces 2211 are always symmetrical to the two sides of the support block 1, that is, the two sides of the center position of the wire 100 move symmetrically. After the wire 100 is straightened, the middle part of the wire body 101 is located on the support block 1, which satisfies the center marking of wires 100 of different lengths. The equidistant and symmetrical movement of the two driven positioning components 2 is driven by the cam mechanism 3 at the same time, which ensures the symmetry of the two positioning surfaces 2211 and reduces the number of drives. Specifically, the first limit position and the second limit position are adjusted according to the possible length of the wire 100, and the spacing between the two driven positioning components 2 is adjusted accordingly.

[0046] like Figures 1 - 3 As shown, the driven positioning assembly 2 includes a mounting plate 21 and a positioning block 22 detachably connected to the mounting plate 21. The mounting plate 21 is provided with a guide groove 211. The side of the baffle 221 on the positioning block 22 away from the support block 1 is a positioning surface 2211. A receiving groove 223 is provided on one side of the baffle 221 of the positioning block 22. The receiving groove 223 is adapted to the shape of the shell 102 and is used to receive the shell 102. When the wire 100 is straightened, the shell 102 is received in the shell 102 and can limit the shell 102. Specifically, the positioning block 22 can be replaced according to the shape of the shell 102 of different wires 100, thereby improving the applicability. Furthermore, the baffle 221 is provided with a through hole 2212, which is connected to the receiving groove 223. The wire body 101 can pass through the through hole 2212, further limiting the circumference of the wire body 101.

[0047] Optionally, the support block 1 is provided with a limiting groove 11, and the shape of the limiting groove 11 is adapted to the shape of the wire body 101. For example, if the wire body 101 is a circular wire, the limiting groove 11 is a circular groove, and the limiting groove 11 communicates with the through hole 2212.

[0048] The end of the support block 1 can abut against the side of the baffle 221 away from the positioning surface 2211, improving the relative position accuracy between the driven positioning assembly 2 and the support block 1, thereby improving the positioning accuracy of the wire 100. Optionally, the positioning block 22 further includes a sliding groove 222 provided on the other side of the baffle 221, and one end of the support block 1 can be slidably connected to the sliding groove 222, further improving the relative position accuracy.

[0049] The cam mechanism 3 further includes a connecting plate 32 and a first driving assembly 34. The two cam followers 31 are connected to the connecting plate 32, and the first driving assembly 34 can drive the connecting plate 32 to drive the two cam followers 31 to move to straighten the wire 100. After the wire 100 is placed, the positioning surface 2211 abuts against the housing to position the wire 100. Then, the first driving assembly 34 drives the connecting plate 32 according to the length of the wire 100 until the wire 100 is straightened and the bilateral positioning position of the wire 100 is achieved. The first driving assembly 34 adaptively adjusts the position of the connecting plate 32, that is, the distance between the two driven positioning assemblies 2, according to the length of the wire 100, without prior measurement of the length of the wire 100 before driving, and the operation is simple, convenient and reliable.

[0050] The wire marking fixture further includes a base 6, and the support block 1, the driven positioning assembly 2 and the cam mechanism 3 are all arranged on the base 6. The first driving assembly 34 includes an elastic member 341. The cam mechanism 3 is movably connected to the base 6, and both ends of the elastic member 341 are respectively connected to the base 6 and the cam mechanism 3. When the elastic member 341 resets, it drives the cam mechanism 3 to move towards the first limit position. After the wire 100 is installed, the locking assembly 33 is loosened, and under the action of the elastic member 341, the cam mechanism 3 automatically resets. The elastic member 341 is specifically selected according to experiments or calculations to ensure that after the two driven positioning assemblies 2 and the wire 100 achieve bilateral positioning during the movement of the cam mechanism 3, the elastic member 341 no longer resets, avoiding the wire 100 being broken due to excessive movement of the cam mechanism 3.

[0051] Further, the first driving component 34 further includes a first connecting column 342 and a second connecting column 343. The first connecting column 342 is connected to the connecting plate 32, and the second connecting column 343 is connected to the base 6. The elastic member 341 is a tension spring, and both ends of the tension spring are connected to the first connecting column 342 and the second connecting column 343 to ensure that the telescopic direction of the tension spring is in the horizontal position. The base 6 is provided with a positioning groove, and the bottom of the second connecting column 343 is connected with a positioning plate 345. The positioning plate 345 is connected in the positioning groove to improve the position accuracy and ensure that the telescopic direction of the tension spring is consistent with the moving direction of the connecting plate 32. Optionally, a protective cover 36 is installed on the connecting plate 32 to cover at least part of the outside of the tension spring.

[0052] The cam mechanism 3 further includes a locking component 33, and the locking component 33 can lock the connecting plate 32 at the second extreme position. Initially, the locking component 33 locks the cam mechanism 3 to make the distance between the two driven positioning components 2 the smallest. By providing the locking component 33, it can adapt to the shortest length of the wire 100 and prevent the connecting plate 32 from being displaced under the action of the first driving component 34, resulting in the wire 100 being broken, etc.

[0053] The locking component 33 includes a base 331 and an elastic bolt 332. The elastic bolt 332 is slidably connected to the base 331. A slot 321 is provided on the side surface of the connecting plate 32 along the first direction, and the elastic bolt 332 can be inserted into the slot 321. The base 331 is connected to the base 6. Initially, the elastic bolt 332 is pushed backward, and the cam mechanism 3 is driven to the second extreme position. Then, the elastic bolt 332 is released to automatically insert into the slot 321, which is simple and convenient to operate.

[0054] Optionally, the cam mechanism 3 further includes an operating handle 35. The operating handle 35 is connected to the connecting plate 32, and manually driving the operating handle 35 drives the connecting plate 32 and the cam follower 31 thereon to move toward the second extreme position direction. Optionally, the cam mechanism 3 further includes a second driving component. The second driving component is drivingly connected to the connecting plate 32 and is used to drive the cam mechanism 3 to move toward the second extreme position to achieve automatic driving. Specifically, the second driving component can be a cylinder, etc.

[0055] The guiding groove 211 is a straight groove, and the two guiding grooves 211 are arranged at an angle. The structure is simple, and the distance between the two driven positioning components 2 changes linearly. Further, the mounting plate 21 is generally L-shaped and includes two connected mounting portions. The guiding groove 211 is provided in one mounting portion, and the positioning block 22 is connected to the other mounting portion. The end with a larger distance between the two guiding grooves 211 faces the side of the positioning block 22, and the end with a smaller distance between the two guiding grooves 211 faces away from the positioning block 22. In other embodiments, the guiding groove 211 can also be an arc groove or a curve groove, etc., which is not limited.

[0056] The wire marking fixture further includes a first guiding mechanism 4. The first guiding mechanism 4 includes a first guiding member 41 and two first sliding members 42 slidably connected to the first guiding member 41. The first guiding member 41 extends along a first direction. The two driven positioning components 2 are correspondingly connected to the two first sliding members 42, which improves the moving accuracy of the two driven positioning components 2 and reduces the friction force. Optionally, the first guiding member 41 is a linear guide rail, and the first sliding member 42 is a slider cooperating with the linear guide rail.

[0057] The wire marking fixture further includes a second guiding mechanism 5. The second guiding mechanism 5 includes a second guiding member 51 and a second sliding member 52 slidably connected to the second guiding member 51. The cam mechanism 3 moves along a second direction. The second guiding member 51 extends along the second direction. The cam mechanism 3 is connected to the second sliding member 52, which improves the moving accuracy of the cam mechanism 3 and reduces the friction force. Optionally, the second guiding member 51 is a linear guide rail, and the second sliding member 52 is a slider cooperating with the linear guide rail.

[0058] Optionally, two adapter plates 7 are further installed on the base 6. The first guiding member 41 is installed on the base 6 through one adapter plate 7, and the second guiding member 51 is installed on the base 6 through the other adapter plate 7. Optionally, the adapter plate 7 is provided with a positioning groove. The bottom of the second connecting column 343 is connected with a positioning plate 345, and the positioning plate 345 is connected in the positioning groove, which improves the position accuracy and ensures that the second guiding mechanism 5, the first driving component 34, the connecting plate 32 and the cam follower 31 are all installed on the same adapter plate 7, realizing modular assembly.

[0059] The wire marking fixture is installed on a marking machine, and the marking machine marks the wire 100. Optionally, mounting holes 61 are provided on the base 6, and fasteners such as bolts are passed through the mounting holes 61 and threadedly connected to the marking machine, so that the wire 100 marking fixture is fixed on the marking machine.

[0060] This embodiment also provides a wire marking method, which uses the above wire marking fixture, as Figure 4 shown, the wire marking method includes:

[0061] S100. Control the cam mechanism 3 to be in the second extreme position, so that the distance between the two driven positioning components 2 is the smallest, and it can adapt to the shortest length of the wire 100;

[0062] S200. Correspondingly abut the end faces of the two outer shells 102 facing each other against the positioning surfaces 2211 of the two driven positioning components 2;

[0063] S300. Control the cam mechanism 3 to move towards the first extreme position until the wire 100 is straightened and the wire body 101 is carried on the support block 1, and perform adaptive adjustment according to the actual length of the wire 100, which is simple and convenient;

[0064] The S400 marks the wire body 101, which can ensure centering marking of the wire 100 and meet the product requirements.

[0065] Optionally, the cam mechanism 3 further includes a connecting plate 32, a first driving component 34, a locking component 33 and an operating handle 35. Two cam followers 31 are connected to the connecting plate 32. The first driving component 34 can drive the connecting plate 32 to drive the two cam followers 31 to move. The locking component 33 can lock the connecting plate 32 at the second extreme position, and the operating handle 35 is connected to the connecting plate 32.

[0066] Step S100 specifically further includes the following steps:

[0067] S101: Hold and push the operating handle 35 to drive the connecting plate 32 to drive the two cam followers 31 to move to the second extreme position;

[0068] S102: Control the locking component 33 to lock the connecting plate 32, so that the connecting plate 32 and the cam followers 31 are locked at the second extreme position;

[0069] After installing the wire 100, step S300 specifically further includes the following steps:

[0070] S301: Control the locking component 33 to unlock the connecting plate 32;

[0071] S302: Control the first driving component 34 to drive the connecting plate 32 to move towards the first extreme position until the wire 100 is straightened and the wire body 101 is carried on the support block 1.

[0072] Further, when the first driving component 34 is a tension spring, in step S302, the tension spring automatically resets to drive the connecting plate 32 to move towards the first extreme position.

[0073] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A wire marking fixture, wherein the wire (100) includes a wire body (101) and outer shells (102) provided at both ends of the wire body (101), and is characterized in that, Comprising: A support block (1) for carrying the wire body (101); Two driven positioning components (2) provided on both sides of the support block (1) along a first direction, and the two driven positioning components (2) can move towards or away from each other along the first direction. The driven positioning components (2) are provided with guide grooves (211) and positioning surfaces (2211), and the two positioning surfaces (2211) are used to correspondingly abut against the end faces of the two outer shells (102) facing each other; and A cam mechanism (3) including two cam followers (31), the two cam followers (31) are correspondingly slidably connected to the two guide grooves (211), the cam mechanism (3) moves so that the two cam followers (31) respectively drive the two driven positioning components (2) to move equidistantly. The cam mechanism (3) has a first limit position and a second limit position. When the cam mechanism (3) moves towards the first limit position, the wire (100) is straightened; The driven positioning component (2) includes a mounting plate (21) and a positioning block (22) detachably connected to the mounting plate (21). The mounting plate (21) is provided with the guide groove (211). The side of the baffle (221) on the positioning block (22) facing away from the support block (1) is the positioning surface (2211). Accommodating grooves (223) and sliding grooves (222) are provided on both sides of the baffle (221) of the positioning block (22). The accommodating grooves (223) are adapted to the outer shape of the outer shell (102) for accommodating the outer shell (102). The support block (1) can be slidably connected to the sliding groove (222) and its end can abut against the side of the baffle (221) facing away from the positioning surface (2211).

2. The wire marking fixture according to claim 1, characterized in that, The cam mechanism (3) moves along a second direction, the first direction and the second direction are perpendicular, and the cam mechanism (3) can be located at a position between the first limit position and the second limit position. When located at the first limit position, the distance between the two driven positioning components (2) is the largest. When located at the second limit position, the distance between the two driven positioning components (2) is the smallest.

3. The wire marking fixture according to claim 2, wherein The cam mechanism (3) further includes a connecting plate (32) and a first driving component (34). The two cam followers (31) are connected to the connecting plate (32), and the first driving component (34) can drive the connecting plate (32) to drive the two cam followers (31) to move.

4. The wire marking fixture according to claim 3, wherein It further includes a base (6). The first driving component (34) includes an elastic member (341). The cam mechanism (3) is movably connected to the base (6). The two ends of the elastic member (341) are respectively connected to the base (6) and the cam mechanism (3). When the elastic member (341) returns to its original position, it drives the cam mechanism (3) to move towards the first limit position to straighten the wire (100).

5. The wire marking fixture according to claim 3, characterized in that, The cam mechanism (3) further includes a locking component (33), and the locking component (33) can lock the connecting plate (32) at the second limit position.

6. The wire marking fixture according to claim 3, characterized in that, The cam mechanism (3) further includes an operating handle (35), and the operating handle (35) is connected to the connecting plate (32); and / or, the cam mechanism (3) further includes a second driving assembly, and the second driving assembly is drivingly connected to the connecting plate (32) and is configured to drive the cam mechanism (3) to move towards the second limit position.

7. The wire marking fixture according to any one of claims 1-6, characterized in that, Further included are: A first guiding mechanism (4), including a first guiding member (41) and two first sliding members (42) slidably connected to the first guiding member (41), the first guiding member (41) extends along the first direction, and the two driven positioning assemblies (2) are correspondingly connected to the two first sliding members (42); and / or A second guiding mechanism (5), including a second guiding member (51) and a second sliding member (52) slidably connected to the second guiding member (51), the cam mechanism (3) moves along a second direction, the second guiding member (51) extends along the second direction, and the cam mechanism (3) is connected to the second sliding member (52).

8. A wire marking method, characterized in that, When using the wire marking fixture according to any one of claims 1-7, the wire marking method includes: Controlling the cam mechanism (3) to be in the second limit position so that the distance between the two driven positioning assemblies (2) is minimized; Correspondingly abutting the end faces of the two outer shells (102) facing each other against the positioning surfaces (2211) of the two driven positioning assemblies (2); Controlling the cam mechanism (3) to move towards the first limit position until the wire (100) is straightened and the wire body (101) is carried on the support block (1); Marking the wire body (101).

9. The wire marking method according to claim 8, characterized in that, The cam mechanism (3) further includes a connecting plate (32), a first driving assembly (34), a locking assembly (33) and an operating handle (35). The two cam followers (31) are connected to the connecting plate (32). The first driving assembly (34) can drive the connecting plate (32) to drive the two cam followers (31) to move. The locking assembly (33) can lock the connecting plate (32) at the second limit position. The operating handle (35) is connected to the connecting plate (32). The wire marking method further includes: Grasping and pushing the operating handle (35) to drive the connecting plate (32) to drive the two cam followers (31) to move to the second limit position; controlling the locking assembly (33) to lock the connecting plate (32) so that the connecting plate (32) and the cam followers (31) are locked at the second limit position; After installing the wire (100), controlling the locking assembly (33) to unlock the connecting plate (32), and the first driving assembly (34) drives the connecting plate (32) to move towards the first limit position until the wire (100) is straightened and the wire body (101) is carried on the support block (1).

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