A slotting tool for the surface of an elongated workpiece

Abstract

The application discloses a kind of slotting tool for the surface of long workpiece, comprising: support (110), it has the load-bearing surface (111) formed along the transverse direction (X) and the longitudinal direction (Y) perpendicular to the transverse direction (X) extends;Clamp (120), the clamping cavity (126) along the longitudinal direction (Y) of the load-bearing surface (111) is arranged on the clamp (120), and long workpiece (200) is clamped in the clamping cavity (126);Sliding member (130), along the longitudinal direction (Y) of the load-bearing surface (111) movably connected with the load-bearing surface (111);Wherein, the sliding member (130) is installed for the cutter (140) for slotting on the surface of long workpiece (200).The slotting tool structure is simple, convenient to operate, greatly reduces the cost and technical difficulty of long workpiece slotting, and has better practicability.

Description

Technical Field

[0001] This invention relates to the field of cutting technology, and in particular to a grooving fixture for the surface of long workpieces. Background Technology

[0002] In industrial production, it is necessary to groove the surface of long workpieces, requiring the grooves to maintain a certain straightness and uniform depth. Because long workpieces are prone to rotation or twisting during the grooving process, the difficulty of grooving is increased. Furthermore, sometimes it is necessary to groove multiple grooves on the surface of long, round workpieces, maintaining a certain angle between the grooves, which also places higher demands on the grooving process.

[0003] Currently, grooving the surface of long workpieces is often done manually, relying on skilled workers to meet quality requirements. This manual method is labor-intensive, time-consuming, and unsuitable for industrialized mass production. Therefore, there is an urgent need to provide a tooling solution for grooving the surface of long workpieces to address these issues. Summary of the Invention

[0004] This solution addresses the problems and needs raised above by proposing a grooving fixture for the surface of elongated workpieces. Due to the adoption of the following technical features, it can achieve the above-mentioned technical objectives and bring about several other technical benefits.

[0005] This invention proposes a grooving fixture for the surface of an elongated workpiece, comprising: A support having a bearing surface formed by extending along a transverse direction and a longitudinal direction perpendicular to the transverse direction; A clamp having a clamping cavity arranged along the longitudinal direction of the bearing surface, wherein an elongated workpiece is clamped; A sliding member is movably connected to the bearing surface along the longitudinal direction of the bearing surface; wherein, a cutting tool for cutting grooves on the surface of the elongated workpiece is mounted on the sliding member.

[0006] In this technical solution, when using this fixture, the long workpiece (e.g., a round pipe) is first fixed in the clamping cavity of the fixture. Then, the sliding member is moved along the longitudinal direction of the long workpiece so that the cutter on the sliding member moves to the position where the long workpiece needs to be grooved. The cutter stops on the long workpiece and cuts the groove at the corresponding position. After the groove is cut at that position, the sliding member is moved along the longitudinal direction to cut the groove at the next position. This grooving fixture has a simple structure, is easy to operate, saves time and effort, has high grooving efficiency, greatly reduces the cost and technical difficulty of grooving long workpieces, and has good practicality.

[0007] In addition, the grooving fixture for the surface of an elongated workpiece according to the present invention may also have the following technical features: In one example of the invention, one of the bracket and the slider is provided with a slide rail arranged in the longitudinal direction, and the other is provided with a slide path adapted to the slide rail.

[0008] In one example of the invention, the clamp includes: The substrate extends along the longitudinal direction of the bearing surface; Side plates extend along the longitudinal direction of the bearing surface and are arranged on both sides of the substrate in the transverse direction; The substrate and the side plate together define the cavity that is open at the top.

[0009] In one example of the invention, of the two side plates, at least one of the side plates is adjustable in the lateral direction to change the span of the clamping cavity in the lateral direction.

[0010] In one example of the invention, it further includes: a fixing block, which is fixedly disposed on the side of the side plate away from the substrate, configured to at least limit the degree of freedom of the side plate in the lateral direction; wherein, in one of the side plate and the substrate, a mounting hole is formed, and a mounting shaft adapted to the mounting hole is formed on the other, so that the side plate and the substrate can move relative to each other in the lateral direction.

[0011] In one example of the present invention, the slider includes: The bent portion forms a receiving cavity with an open lower end, and the clamp is confined within the receiving cavity; The sliding plate portion is formed on both sides of the bend portion in the lateral direction and is movably connected to the bearing surface; The bending portion has a through hole, and the cutting tool is fixed on the bending portion by a connecting mechanism and is adapted to pass through the through hole and abut against the outer contour of the elongated workpiece.

[0012] In one example of the present invention, the bending portion includes: A first plate portion and a second plate portion forming a right angle with the first plate portion, wherein the through holes are respectively formed on the first plate portion and the second plate portion.

[0013] In one example of the present invention, positioning grooves are also provided on both the first plate portion and the second plate portion, and the positioning grooves cover the through hole and are adapted to the cutting tool.

[0014] In one example of the present invention, the connecting mechanism includes: The connecting rods are fixedly arranged at intervals on the bend along the longitudinal direction and extend in a direction away from the bend. A pressure block is slidably connected to the two connecting rods along the extension direction of the connecting rods, wherein the cutter is fixedly connected to the pressure block.

[0015] In one example of the invention, the link includes: A first rod and a second rod coaxially connected thereto, wherein the outer diameter of the second rod is smaller than the outer diameter of the first rod, the first rod is fixedly connected to the bent portion, and the second rod is adapted to a sliding hole opened on the pressure block.

[0016] In one example of the invention, the extending direction of the clamp in the longitudinal direction is parallel to the moving direction of the slider in the longitudinal direction.

[0017] The preferred embodiments of the invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. The drawings are merely illustrative of some embodiments of the present invention and are not intended to limit the scope of the present invention to all embodiments.

[0019] Figure 1 This is a front view of a grooving fixture for the surface of an elongated workpiece according to an embodiment of the present invention; Figure 2 A perspective view of a grooving fixture for the surface of an elongated workpiece according to an embodiment of the present invention; Figure 3 This is a magnified view of point Q in diagram 2; Figure 4 This is a front view of the slider according to an embodiment of the present invention; Figure 5 This is a perspective view of the slider in one direction according to an embodiment of the present invention; Figure 6 This is a perspective view of the slider in another direction according to an embodiment of the present invention.

[0020] List of reference numerals in the attached diagram: Grooving fixture 100; Bracket 110; Bearing surface 111; Slide rail 112; Fixture 120; substrate 121; Side panel 122; Fixed block 123; First gasket 124; Second gasket 125; Clamping cavity 126; 127; Slider 130; Bending section 131; First section 1311; Second plate section 1312; 1313 accommodating cavity; Through hole 1314; Positioning groove 1315; Skateboard section 132; Slider 1321; Slide 13211; Connecting mechanism 133; Link 1331; First rod 13311; Second rod 13312; Press block 1332; Sliding hole 13321; Cutting tool 140; Long workpiece 200; Lateral direction X; The vertical direction is Y. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0023] According to the present invention, a grooving fixture 100 for the surface of an elongated workpiece 200, such as... Figure 1 , Figure 2 and Figure 3 As shown, it includes: The bracket 110 has a bearing surface 111 formed by extending along the lateral direction X and the longitudinal direction Y perpendicular to the lateral direction X; The clamp 120 has a clamping cavity 126 arranged along the longitudinal direction Y of the bearing surface 111, and the elongated workpiece 200 is clamped in the clamping cavity 126. A sliding member 130 is movably connected to the bearing surface 111 along the longitudinal direction Y of the bearing surface 111; wherein, a cutting tool 140 for cutting grooves on the surface of the elongated workpiece 200 is mounted on the sliding member 130. It should be noted that the cutting tool 140 is prior art and will not be described in detail here.

[0024] When using this fixture, the elongated workpiece 200 (e.g., a round pipe) is first fixed in the clamping cavity 126 of the clamp 120. Then, the sliding member 130 is moved along the longitudinal direction Y of the elongated workpiece 200 so that the cutter 140 on the sliding member 130 moves to the position where the elongated workpiece 200 needs to be grooved. The cutter 140 stops on the elongated workpiece 200 and cuts the groove at the corresponding position. After the groove is cut at the position, the sliding member 130 is moved along the longitudinal direction Y to continue cutting the groove at the next position. This grooving fixture 100 has a simple structure, is easy to operate, saves time and effort, has high grooving efficiency, greatly reduces the cost and technical difficulty of grooving the elongated workpiece 200, and has good practicality.

[0025] In one example of the present invention, one of the bracket 110 and the slider 130 is provided with a slide rail 112 arranged along the longitudinal direction Y, and the other is provided with a slide rail 13211 adapted to the slide rail 112. For example, a slide rail 112 is arranged along the longitudinal direction Y on the bearing surface 111 of the bracket 110, and is spaced apart on both sides of the clamp 120 in the transverse direction X. A slide rail 13211 adapted to the slide rail 112 is formed on the lower end surface of the slider 130, so that the slider 130 can move to any position along the longitudinal direction Y of the bearing surface 111. For example, a slide rail 13211 (e.g., the slide rail 13211 is an inverted T-shaped groove structure) is provided on the bearing surface 111 of the bracket 110 along the longitudinal direction Y, and is spaced apart on both sides of the clamp 120 in the transverse direction X. A slide rail 112 (e.g., the slide rail 112 is an inverted T-shaped block adapted to the inverted T-shaped groove) is formed on the lower end surface of the slider 130, so that the slider 130 can move to any position along the longitudinal direction Y of the bearing surface 111.

[0026] Both of the above structures enable the slider 130 to move to any position along the longitudinal direction Y of the bearing surface 111, which is convenient and reliable.

[0027] In one example of the invention, the clamp 120 includes: The substrate 121 extends along the longitudinal direction Y of the bearing surface 111; Side plates 122 extend along the longitudinal direction Y of the bearing surface 111 and are arranged on both sides of the substrate 121 in the transverse direction X. The substrate 121 and the side plate 122 together define the upper open cavity 126; In other words, the clamp 120 presents an upward-opening C-shaped structure by the cooperation of the base plate 121 and the side plates 122 on both sides. The elongated workpiece 200 is fixedly fitted in the clamping cavity 126, and the cutting tool 140 on the sliding member 130 performs grooving on the elongated workpiece 200 located in the clamping cavity 126. This structure of the clamp 120 can easily fix the elongated workpiece 200 and has high reliability.

[0028] Preferably, a first gasket 124 is provided between the substrate 121 and the elongated workpiece 200, and a second gasket 125 is provided between the side plate 122 and the elongated workpiece 200, thereby protecting the elongated workpiece 200. Since the thickness of the first gasket 124 and the second gasket 125 can be selected, they can also be used to adjust and stabilize the clamping cavity 126.

[0029] In one example of the invention, of the two side plates 122, at least one of the side plates 122 is adjustable to move along the lateral direction X to change the span of the clamping cavity 126 in the lateral direction X. In other words, the two side plates 122 can be adjusted and moved simultaneously along the lateral direction X, or one of the side plates 122 can be adjusted in the lateral direction X to achieve the span adjustment between the two side plates 122.

[0030] The base plate 121 is fixed on the bearing surface 111, and the side plate 122 is adjustablely connected to the base plate 121 in the transverse direction X, thereby realizing the span adjustment between the two side plates 122 in the transverse direction X, thereby changing the size of the clamping cavity 126 to accommodate long workpieces 200 with different outer diameters. The structure of the side plate 122 can improve the adaptability and flexibility of the fixture 120.

[0031] In one example of the present invention, a fixing block 123 is further included, which is fixedly disposed on the side of the side plate 122 away from the substrate 121, and configured to at least limit the degree of freedom of the side plate 122 in the lateral direction X; wherein, one of the side plate 122 and the substrate 121 is provided with a mounting hole, and the other is formed with a mounting shaft adapted to the mounting hole, so that the side plate 122 and the substrate 121 can move relative to each other in the lateral direction X.

[0032] For example, in both the side plate 122 and the base plate 121, the base plate 121 is fixed on the bearing surface 111, the base plate 121 is provided with a mounting shaft, and the side plate is provided with a mounting hole, so that the position of the side plate relative to the base plate can be adjusted, thereby realizing the span adjustment between the two side plates 122. By setting the cooperation method of the mounting shaft and the mounting hole, the side plate can only be adjusted in the lateral direction X, improving the reliability and compactness of the connection between the side plate 122 and the base plate 121.

[0033] For example, the fixing block 123 is a right-angled triangle structure. After determining the position of the side plate 122 on the base plate 121, one right-angled side of the triangular fixing block 123 abuts against the side plate 122, and the other right-angled side abuts against the bearing surface 111. The fixing block 123 and the side plate 122, as well as the fixing block 123 and the bearing surface 111, are fixed by fasteners. Alternatively, the fixing block 123 can be fixed to one side of the side plate 122 by abutment 127, wherein one end of the abutment 127 abuts against the slide rail 112, and the other end abuts against the fixing block 123. It should be noted that, in order to accommodate the flexibility of the span between the two side plates 122, different lengths of abutment 127 can be used when fixing the side plate 122, depending on the type of long workpiece 200. It should be noted that, in order to improve the tightness and reliability of the connection between them, for example, a slotted engagement can be used between the side plate 122 and the base plate 121; or, for example, a slotted engagement can be used between the side plate 122 and the fixing plate 123.

[0034] For example, a first positioning hole and a second positioning hole are provided on the fixing block 123 and the side plate 122 respectively, and the fastening screws are sequentially passed through the first positioning hole and the second positioning hole; similarly, the fixing block 123 and the bearing surface 111 are also fixedly connected by fasteners, which is similar to the above, and will not be described again here.

[0035] Of course, the present invention is not limited thereto, and also includes: a double-ended stud, wherein the two ends of the double-ended stud are respectively provided with a first external thread and a second external thread, and a first threaded hole and a second threaded hole are respectively provided on the two side plates 122, wherein the first external thread is adapted to the first threaded hole, and the second external thread is adapted to the second threaded hole; wherein the thread directions of the first external thread and the second external thread are opposite, and the thread directions of the first threaded hole and the second threaded hole are opposite.

[0036] Preferably, a knob is provided in the middle of the double-ended stud. By rotating the knob in the forward or reverse direction, the two side plates 122 can move towards each other or away from each other at the same time, which can also achieve the purpose of adjusting the span between the two side plates 122.

[0037] In one example of the present invention, the slider 130 includes: The bent portion 131 forms a receiving cavity 1313 with an open lower end, and the clamp 120 is confined within the receiving cavity 1313; The sliding plate portion 132 is formed on both sides of the bent portion 131 in the lateral direction X and is movably connected to the bearing surface 111; The bending portion 131 is provided with a through hole 1314, and the cutting tool 140 is fixed on the bending portion 131 by a connecting mechanism 133 and is adapted to pass through the through hole 1314 and abut against the outer contour of the elongated workpiece 200. For example, a slider 1321 is provided at the lower end of the slide plate 132, and a slide rail 13211 is provided on the slider 1321, and the slide rail 13211 is adapted to the slide rail 112; by adapting the slide rail 112 to the slide rail 13211, the slider 130 can be adjusted to move along the longitudinal direction Y.

[0038] In short, the sliding plate 132 enables the sliding member 130 to adjust its position in the longitudinal direction Y of the elongated workpiece 200. The accommodating cavity 1313 formed by the bending portion 131 is used to define the fixture 120 and the elongated workpiece 200 mounted on the fixture 120. The cutting tool 140 is connected to the bending portion 131 and extends into the accommodating cavity 1313 through the through hole 1314 provided on the bending portion 131, and abuts against the elongated workpiece 200 to achieve the cutting of a groove on the outer wall of the elongated workpiece 200 by the cutting tool 140.

[0039] In one example of the present invention, the bending portion 131 includes: A first plate portion 1311 and a second plate portion 1312 forming a right angle with the first plate portion 1311, wherein the through hole 1314 is respectively opened on the first plate portion 1311 and the second plate portion 1312; In other words, through holes 1314 are opened on both the first plate portion 1311 and the second plate portion 1312. By opening through holes 1314 on the two mutually perpendicular first plate portions 1311 and the second plate portion 1312, the two cutting tools 140 located on both sides of the bending portion 131 can carve two orthogonal grooves with a 90-degree included angle on the outer surface of the elongated workpiece 200. Here, the included angle refers to the angle after connecting the groove with the geometric center line of the elongated workpiece 200.

[0040] It should be noted that the included angle of the 200 groove on the long workpiece can be adjusted simply by changing the bending angle of the bending part.

[0041] In one example of the present invention, positioning grooves 1315 are also provided on the first plate portion 1311 and the second plate portion 1312, and the positioning grooves 1315 cover the through hole 1314 and are adapted to the cutting tool 140. The through hole 1314 is only used for the main part of the cutting tool 140 to pass through and abut against the long workpiece 200. If only the through hole 1314 is provided on the first plate part 1311 and the second plate part 1312, the cutting tool 140 is prone to displacement during use, which will affect the accuracy of cutting. The positioning groove 1315 can limit the outer contour of the cutting tool 140.

[0042] In other words, by setting a positioning groove 1315 at the through hole 1314, the position of the tool 140 installed on the bending part 131 can be conveniently positioned, thereby enabling the tool 140 to perform grooving operations on the long workpiece 200 more accurately.

[0043] In one example of the present invention, the connecting mechanism 133 includes: The connecting rod 1331 is fixedly arranged on the bent portion 131 at intervals along the longitudinal direction Y, and extends in a direction away from the bent portion 131; The pressure block 1332 is slidably connected to the two connecting rods 1331 along the extension direction of the connecting rod 1331, wherein the cutter 140 is fixedly connected to the pressure block 1332; In other words, the connecting rod 1331 is perpendicular to the end face of the bent portion 131 (i.e., perpendicular to the first plate portion 1311 or the second plate portion 1312), and there are two connecting rods 1331, which are respectively arranged on both sides of the positioning groove 1315 along the longitudinal direction Y. The pressure block 1332 is slidably connected to the two connecting rods 1331, so that the pressure block 1332 can be reciprocated along the extension direction of the connecting rod 1331. Since the tool 140 is fixed on the pressure block 1332, when the pressure block 1332 is reciprocated, the tool 140 can be stopped by the through hole 1314 to cut grooves on the outer surface of the elongated workpiece 200, and the tool 140 can also be withdrawn from the through hole 1314. Through the above-mentioned connecting mechanism 133, the cutting position of the tool 140 can be adjusted more conveniently and accurately, which greatly improves the cutting efficiency.

[0044] In one example of the present invention, the link 1331 includes: A first rod 13311 and a second rod 13312 coaxially connected thereto, wherein the outer diameter of the second rod 13312 is smaller than the outer diameter of the first rod 13311, the first rod 13311 is fixedly connected to the bending part 131, and the second rod 13312 is adapted to the sliding hole 13321 opened on the pressure block 1332; In other words, on the end face where the first rod 13311 and the second rod 13312 are connected, the end face portion of the first rod 13311 not covered by the second rod 13312 forms a limiting surface, allowing the pressure block 1332 to slide on the second rod 13312, while the limiting surface of the first rod 13311 can limit the position of the pressure block 1332 on the second rod 13312; the connecting rod 1331 enables the pressure block 1332 to move within a controllable distance on the connecting rod 1331, thereby facilitating the control of the tool 140.

[0045] In one example of the present invention, the extending direction of the clamp 120 in the longitudinal direction Y is parallel to the moving direction of the slider 130 in the longitudinal direction Y. In other words, the two slide rails 112 arranged along the longitudinal direction Y are parallel to the fixture 120, which can ensure the straightness of the groove.

[0046] When installing the grooving fixture 100, first install the clamp 120 on the bracket 110, and keep the clamp 120 straight by means of laser orientation, then install positioning blocks at equal intervals on both sides of the clamp 120, and finally install two slide rails 112. The advantage of doing this is that it ensures that the clamp 120 and the two slide rails 112 are parallel to each other.

[0047] According to the present invention, a grooving fixture 100 for the surface of an elongated workpiece 200 includes a grooving tool 140 fixed to a tool 140 fixing member. The cutting tip of the grooving tool 140 passes through a through hole 1314 on a sliding member 130 and contacts the elongated workpiece 200. When the grooving tool 140 switch is activated, the cutting tip of the tool 140 rotates into the elongated workpiece 200, pushing the sliding member 130, and the grooving tool 140 can carve a straight groove on the elongated workpiece 200. This fixture has a simple structure, is easy to operate, greatly reduces the cost and technical difficulty of grooving elongated workpieces 200, and has good practicality.

[0048] The foregoing description, with reference to preferred embodiments, details an exemplary embodiment of the grooving fixture 100 for the surface of an elongated workpiece 200 proposed in this invention. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of this invention, and various combinations can be made to the various technical features and structures proposed in this invention without exceeding the protection scope of this invention, which is determined by the appended claims.

Claims

1. A grooving fixture for the surface of an elongated workpiece, characterized in that, include: The support (110) has a bearing surface (111) formed by extending along the transverse direction (X) and the longitudinal direction (Y) perpendicular to the transverse direction (X). A clamp (120) has a clamping cavity (126) arranged along the longitudinal direction (Y) of the bearing surface (111), and an elongated workpiece (200) is clamped in the clamping cavity (126); A sliding member (130) is movably connected to the bearing surface (111) along the longitudinal direction (Y); wherein, a cutting tool (140) for cutting grooves on the surface of the elongated workpiece (200) is mounted on the sliding member (130); the sliding member (130) includes: The bent portion (131) has a receiving cavity (1313) with an open lower end, and the clamp (120) is confined within the receiving cavity (1313); The sliding plate portion (132) is formed on both sides of the bent portion (131) in the lateral direction (X) and is movably connected to the bearing surface (111); The bending portion (131) is provided with a through hole (1314), and the cutting tool (140) is fixed on the bending portion (131) by a connecting mechanism (133) and is adapted to pass through the through hole (1314) and abut against the outer contour of the elongated workpiece (200).

2. The grooving fixture for the surface of an elongated workpiece according to claim 1, characterized in that, Of the bracket (110) and the slider (130), one is provided with a slide rail (112) arranged along the longitudinal direction (Y), and the other is provided with a slide rail (13211) adapted to the slide rail (112).

3. The grooving fixture for the surface of an elongated workpiece according to claim 1, characterized in that, The clamp (120) includes: The substrate (121) extends along the longitudinal direction (Y) of the bearing surface (111); Side plates (122) extend along the longitudinal direction (Y) of the bearing surface (111) and are arranged on both sides of the substrate (121) in the transverse direction (X); The substrate (121) and the side plate (122) together define the upper open cavity (126).

4. The grooving fixture for the surface of an elongated workpiece according to claim 3, characterized in that, Of the two side plates (122), at least one of the side plates (122) is adjustable to move in the lateral direction (X) to change the span of the clamping cavity (126) in the lateral direction (X).

5. The grooving fixture for the surface of an elongated workpiece according to claim 4, characterized in that, Also includes: A fixing block (123) is fixedly disposed on the side of the side plate (122) away from the base plate (121) and configured to at least limit the degree of freedom of the side plate (122) in the lateral direction (X); wherein, one of the side plate (122) and the base plate (121) is provided with a mounting hole, and the other is provided with a mounting shaft adapted to the mounting hole, so that the side plate (122) and the base plate (121) can move relative to each other in the lateral direction (X).

6. The grooving fixture for the surface of an elongated workpiece according to claim 1, characterized in that, The bent portion (131) includes: A first plate portion (1311) and a second plate portion (1312) forming a right angle with the first plate portion (1311), wherein the through hole (1314) is respectively opened on the first plate portion (1311) and the second plate portion (1312).

7. The grooving fixture for the surface of an elongated workpiece according to claim 6, characterized in that, Positioning grooves (1315) are also provided on the first plate portion (1311) and the second plate portion (1312), and the positioning grooves (1315) cover the through hole (1314) and are adapted to the cutting tool (140).

8. The grooving fixture for the surface of an elongated workpiece according to claim 1, characterized in that, The connecting mechanism (133) includes: The connecting rod (1331) is fixedly arranged at intervals along the longitudinal direction (Y) on the bent portion (131) and extends in a direction away from the bent portion (131); The pressure block (1332) is slidably connected to the two connecting rods (1331) along the extension direction of the connecting rod (1331), wherein the cutter (140) is fixedly connected to the pressure block (1332).

9. The grooving fixture for the surface of an elongated workpiece according to claim 8, characterized in that, The connecting rod (1331) includes: A first rod (13311) and a second rod (13312) coaxially connected thereto, wherein the outer diameter of the second rod (13312) is smaller than the outer diameter of the first rod (13311), the first rod (13311) is fixedly connected to the bent part (131), and the second rod (13312) is adapted to the sliding hole (13321) opened on the pressure block (1332).

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