CN220943260U - Section bar inclined hole processingequipment - Google Patents

Abstract

The utility model discloses a section inclined hole machining device, which relates to the technical field of section machining and comprises a drilling unit, a limiting unit, a supporting plate and a workbench, wherein the limiting unit and the supporting plate are arranged on the drilling unit; the drilling unit comprises a mounting frame, a machine head and a displacement mechanism are respectively arranged on the mounting frame, the machine head is located right above the displacement mechanism, the displacement mechanism is connected with the supporting plate, and a drill bit is arranged on the machine head. The beneficial effects are that: when the multi-angle inclined hole is drilled, only the section bar processing position and the drill bit are required to be positioned, and the operation steps in positioning are reduced, so that the efficiency and the accuracy of positioning the drill bit, the limiting sleeve and the section bar are effectively improved.

Description

Section bar inclined hole processingequipment

Technical Field

The utility model relates to the technical field of profile machining, in particular to a profile inclined hole machining device.

Background

The section bar refers to a solid straight bar with a certain section shape and size, which is formed by plastic processing of metal. The section bar has various specifications and wide application, plays a very important role in rolling production, and is an object with a certain geometric shape, which is made of iron or steel and materials with certain strength and toughness through rolling, extrusion, casting and other processes, and has excellent processability.

When the profile is used, due to installation requirements, inclined holes can be machined on the surface of the aluminum profile, deflection of the inclined holes is prevented when the inclined holes are machined in the existing field, a limiting sleeve is additionally arranged at a drilling position to limit the inclined holes, the existing limiting sleeve is required to respectively position a drill bit, the limiting sleeve and the drilling position when the drilling angle is adjusted, quick positioning machining is inconvenient, and machining efficiency is reduced.

Disclosure of utility model

The utility model aims to solve the problems and provide a section inclined hole processing device.

The utility model realizes the above purpose through the following technical scheme:

The utility model provides a section bar inclined hole processingequipment, includes drilling unit, spacing unit, backup pad and workstation, be provided with on the drilling unit spacing unit with the backup pad, be provided with the inclination unit in the backup pad, be provided with on the inclination unit the workstation, be provided with fixed unit on the workstation, the one end of workstation rotates to be connected the backup pad, the section bar that needs to punch is placed on the workstation, fixes the section bar through fixed unit, according to the angle of processing the inclined hole as required, drives the workstation through the inclination unit and removes, because the one end rotation of workstation is connected the backup pad, the workstation takes place to rotate to make the section bar be in the inclination state;

The drilling unit comprises a mounting frame, the mounting frame is respectively provided with a machine head and a displacement mechanism, the machine head is positioned right above the displacement mechanism, the displacement mechanism is connected with the supporting plate, the machine head is provided with a drill bit, the supporting plate is driven to move through the displacement mechanism, the supporting plate drives the workbench to move, so that the drilling position of the section bar is moved to the position right below the drill bit, the drill bit is driven to lift and rotate through the machine head, and inclined holes are drilled on the section bar through the drill bit;

The limiting unit comprises a first screw rod, a mounting seat, a limiting sleeve and a locking component, wherein the first screw rod is in threaded connection with the mounting frame, the first screw rod is positioned at two sides of the machine head, a first knob is arranged at the upper end of the first screw rod, the mounting seat is positioned under the drill bit, fixing plates are respectively arranged at two sides of the mounting seat, the fixing plates are rotationally connected with the first screw rod, two positioning grooves are formed in the lower surface of the mounting seat, the locking component is arranged in the positioning grooves, the limiting sleeve is positioned under the mounting seat, a positioning plate is arranged on the upper surface of the limiting sleeve, the positioning plates are in sliding connection with the positioning grooves, through holes are respectively formed in the central positions of the mounting seat and the limiting sleeve, the lower surface of the limiting sleeve is an inclined surface, and before drilling, according to the inclination angle of a section bar, the lower surface inclination of the limiting sleeve and the limiting sleeve with the same profile inclination are selected, the positioning plate is slidably installed in the positioning groove, and the positioning plate is fixed through the locking component, so that the limiting sleeve is fixedly installed on the installation seat, as the machining position of the profile and the installation seat are both positioned right below the drill bit, the screw is driven to rotate through the knob, the installation seat and the limiting sleeve are driven to move through the fixing plate by the screw, so that the installation seat and the limiting sleeve are tightly pressed on the surface of the profile, the positions of the central through holes of the installation seat and the limiting sleeve correspond to the positions of the drilled holes of the profile, the efficiency of positioning the limiting sleeve and the profile is effectively improved, the deviation of the positioning is avoided, the drill bit is limited through the central through holes in the installation seat and the limiting sleeve, the drill bit is prevented from being deviated during drilling by the installation seat and the limiting sleeve, meanwhile, the limiting sleeve is attached to the surface of the section bar to compress the section bar, thereby effectively reducing the generation of burrs around the drilling hole, improving the drilling quality,

Further, locking assembly includes slide bar and locking groove, slide bar sliding connection the mount pad, the one end of slide bar is provided with the plectrum, the slide bar is located the one end in the constant head tank is provided with the latch segment, the lower surface of latch segment is the arc, the slide bar is located cup jointed the spring on the part in the constant head tank, the locking groove sets up the side of locating plate, locking groove sliding connection the latch segment, during the installation stop collar, the locating plate is installed into the constant head tank, because the lower surface of latch segment is the arc, the locating plate promotes the latch segment, and the latch segment drives the slide bar and removes to compress the spring, the locating plate enters into the constant head tank, when the latch segment removes to the corresponding position with the latch segment, under the effect of spring elasticity, makes the latch segment slide into the locking inslot, thereby fixes the locating plate to the installation of stop collar is accomplished, and when dismantling the stop collar, the slide bar drives the latch segment and breaks away from the locking groove through the plectrum, releases the fixation to the locating plate, makes the locating plate out, accomplishes the dismantlement to the stop collar.

Further, the limiting unit further comprises a chip groove, the chip groove is arranged on the side face of the lower end of the limiting sleeve, an opening of the chip groove faces the lowest end of the workbench, and chips generated during drilling are discharged through the chip groove.

Further, the inclination unit comprises a screw rod II, the screw rod II is rotationally connected with the supporting plate, the end part of the screw rod II is provided with a knob II, the screw rod II is in threaded connection with a sliding block, the sliding block is rotationally connected with one end of a supporting rod, the other end of the supporting rod is rotationally connected with the middle position of the side surface of the workbench, the screw rod II is driven to rotate through the knob II, the sliding block is driven to move through the screw rod II, and the sliding block drives the workbench to move through the supporting rod, so that the inclination angle of the workbench is adjusted, and inclined holes with different inclination angles can be processed on a profile.

Further, the fixed unit includes bi-directional screw and dog, bi-directional screw rotates to be connected the workstation, bi-directional screw's both ends screw thread opposite direction, bi-directional screw's tip is provided with the knob III, respectively threaded connection activity is fast on bi-directional screw's the opposite screw thread in both ends, two the activity is fast all be provided with splint, the dog sets up the intermediate position of workstation lower extreme, the section bar is placed on the workstation, blocks spacingly through the dog to the one end of section bar, drives bi-directional screw through the knob III and rotates, and bi-directional screw drives splint through the activity soon and removes, presss from both sides tightly fixedly to the section bar through splint, and the section bar is through the spacing of blocking of dog and the clamp of splint to the section bar takes place to remove when avoiding boring the inclined hole.

Further, the fixing unit further comprises anti-slip strips, the anti-slip strips are equidistantly arranged on the side faces of the clamping plates, the profile is protected through the anti-slip strips, and the anti-slip performance of the clamping plates can be improved.

Compared with the prior art, the utility model has the following beneficial effects:

1. During drilling, the position of the section bar drilling hole is moved to the position right below the drill bit, the first screw rod, the fixed plate and the mounting seat drive the limiting sleeve to move, so that the limiting sleeve is pressed on the surface of the section bar, at the moment, the processing positions of the drill bit, the section bar, the mounting seat and the central through hole of the limiting sleeve are positioned on the same vertical plane, when multi-angle drilling is carried out, the section bar processing positions and the drill bit are only required to be positioned, the operation steps during positioning are reduced, and therefore the efficiency and the accuracy of positioning of the drill bit, the limiting sleeve and the section bar are effectively improved, and the deviation of positioning is avoided to influence the drilling quality.

2. Install the stop collar quick location on the mount pad through locating plate and constant head tank, rethread slide bar, latch segment, spring, latch segment and latch groove fix the stop collar at the mount pad to carry out quick installation and change to the stop collar, conveniently install the change to the stop collar quick when carrying out the inclined hole processing of different angles, make the laminating that the stop collar that selects for use can be better at the section bar surface, thereby protect section bar drilling position.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a section inclined hole machining device according to the utility model;

FIG. 2 is an enlarged schematic view of the structure of the inclined hole processing device for the profile in FIG. 1A;

FIG. 3 is a schematic diagram of the overall side view of a device for machining inclined holes in a profile according to the present utility model;

FIG. 4 is a schematic view of a partial front view of a device for machining inclined holes in a profile according to the present utility model;

FIG. 5 is a schematic view of a partial cross-sectional structure of a device for machining inclined holes in a profile according to the present utility model;

FIG. 6 is an enlarged schematic view of the structure of the inclined hole processing device for the profile shown in FIG. 5B;

The reference numerals are explained as follows:

1. A drilling unit; 11. a mounting frame; 12. a machine head; 13. a drill bit; 14. a displacement mechanism; 2. a limit unit; 21. a first knob; 22. a first screw; 23. a fixing plate; 24. a mounting base; 25. a limit sleeve; 26. a chip removal groove; 27. a positioning plate; 28. a locking groove; 29. a locking block; 210. a spring; 211. a slide bar; 212. a pulling piece; 213. a positioning groove; 3. an inclination angle unit; 31. a second knob; 32. a second screw; 33. a slide block; 34. a support rod; 4. a fixing unit; 41. a clamping plate; 42. the activity is fast; 43. a third knob; 44. a bidirectional screw; 45. a stop block; 46. an anti-slip strip; 5. a support plate; 6. a working table.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model is further described below with reference to the accompanying drawings:

Example 1

As shown in fig. 1-6, a section bar inclined hole machining device comprises a drilling unit 1, a limiting unit 2, a supporting plate 5 and a workbench 6, wherein the limiting unit 2 and the supporting plate 5 are arranged on the drilling unit 1, an inclination angle unit 3 is arranged on the supporting plate 5, a workbench 6 is arranged on the inclination angle unit 3, a fixing unit 4 is arranged on the workbench 6, one end of the workbench 6 is rotationally connected with the supporting plate 5, as shown in fig. 1, 3 and 4, a section bar needing to be punched is placed on the workbench 6, the section bar is fixed through the fixing unit 4, the workbench 6 is driven to move through the inclination angle unit 3 according to the angle required to machine the inclined hole, and as one end of the workbench 6 is rotationally connected with the supporting plate 5, the other end of the workbench 6 rotates along the circumferential direction and the section bar is driven to move through the workbench 6, so that the section bar is in an inclined state;

The drilling unit 1 comprises a mounting frame 11, wherein the mounting frame 11 is respectively provided with a machine head 12 and a displacement mechanism 14, the machine head 12 is positioned right above the displacement mechanism 14, the displacement mechanism 14 is connected with a supporting plate 5, the machine head 12 is provided with a drill bit 13, as shown in fig. 1, the displacement mechanism 14 longitudinally and transversely moves through the prior art, the supporting plate 5 is driven to move through the displacement mechanism 14, the supporting plate 5 drives a workbench 6 to move, so that the drilling position of a section bar is moved to the right lower part of the drill bit 13, the drill bit 13 is driven to lift and rotate through the machine head 12, and inclined holes are drilled on the section bar through the drill bit 13;

The limiting unit 2 comprises a first screw 22, a mounting seat 24, a limiting sleeve 25 and a locking component, wherein the first screw 22 is in threaded connection with the mounting frame 11, the first screw 22 is positioned at two sides of the machine head 12, a first knob 21 is arranged at the upper end of the first screw 22, the mounting seat 24 is positioned under the drill bit 13, two fixing plates 23 are respectively arranged at two sides of the mounting seat 24, the fixing plates 23 are rotationally connected with the first screw 22, two positioning grooves 213 are arranged on the lower surface of the mounting seat 24, the locking component is arranged in the positioning grooves 213, the limiting sleeve 25 is positioned under the mounting seat 24, a positioning plate 27 is arranged on the upper surface of the limiting sleeve 25, the positioning plate 27 is in sliding connection with the positioning grooves 213, through holes are respectively arranged at the central positions in the mounting seat 24 and the limiting sleeve 25, the lower surfaces of the limiting sleeve 25 are inclined surfaces, as shown in figures 1, 2 and 5, the limiting sleeve 25 with the same inclination angle of the lower surface of the limiting sleeve 25 and the profile inclination angle is selected before drilling, the positioning plate 27 is aligned with the positioning groove 213, the positioning plate 27 is slidably arranged in the positioning groove 213, the positioning plate 27 is fixed through the locking component, the limit sleeve 25 is fixedly arranged on the mounting seat 24, the first knob 21 is rotated, the first screw rod 22 is driven to rotate through the first knob 21, the first screw rod 22 drives the mounting seat 24 and the limit sleeve 25 to move through the fixing plate 23, the mounting seat 24 and the limit sleeve 25 are pressed on the surface of the profile, the positions of the central through holes of the mounting seat 24 and the limit sleeve 25 correspond to the positions of the holes drilled on the profile, at the moment, the processing positions of the drill bit 13, the profile, the mounting seat 24 and the central through holes of the limit sleeve 25 are on the same vertical plane, so that the positioning efficiency of the limit sleeve 25 and the profile is effectively improved, the deviation of the positioning is avoided to influence the drilling quality, when the multi-angle drilling is carried out, only the section bar processing position and the drill bit 13 are needed to be positioned, the operation steps during positioning are reduced, the drill bit 13 drills the section bar through the mounting seat 24 and the central through hole in the limiting sleeve 25, the drill bit 13 is limited through the mounting seat 24 and the limiting sleeve 25, the deflection of the drill bit 13 during drilling is avoided, meanwhile, the drill bit is pressed on the section bar surface through the laminating of the limiting sleeve 25, the generation of burrs around the drilling is effectively reduced, the drilling hole quality is improved,

The locking assembly comprises a sliding rod 211 and a locking groove 28, wherein the sliding rod 211 is connected with the mounting seat 24 in a sliding manner, a shifting block 212 is arranged at one end of the sliding rod 211, a locking block 29 is arranged at one end of the sliding rod 211, which is positioned in the positioning groove 213, the lower surface of the locking block 29 is arc-shaped, a spring 210 is sleeved on the part of the sliding rod 211, which is positioned in the positioning groove 213, the locking groove 28 is arranged on the side surface of the positioning plate 27, the locking groove 28 is connected with the locking block 29 in a sliding manner, as shown in fig. 5 and 6, when the limiting sleeve 25 is mounted, the positioning plate 27 is mounted in the positioning groove 213, the positioning plate 27 pushes the locking block 29 due to the arc-shaped lower surface of the locking block 29, the locking block 29 drives the sliding rod 211 to move and compresses the spring 210, and when the locking groove 28 moves to the position corresponding to the locking block 29, the locking block 29 slides into the locking groove 28 under the action of the elastic force of the spring 210, so that the locking block 29 slides into the locking groove 28, and the positioning plate 27 is fixed, and when the limiting sleeve 25 is dismounted, the positioning plate 27 is separated, and the limiting sleeve 25 is dismounted, and the positioning plate 27 is released from the positioning plate 27 due to the fact that the sliding plate 29 is separated from the positioning plate 29 is driven by the shifting plate 212.

The limiting unit 2 further comprises a junk slot 26, the junk slot 26 is arranged on the side face of the lower end of the limiting sleeve 25, the junk slot 26 is opened towards the lowest end of the workbench 6, and chips during drilling are discharged through the junk slot 26 as shown in fig. 5.

The inclination unit 3 comprises a second screw rod 32, the second screw rod 32 is rotationally connected with the supporting plate 5, a second knob 31 is arranged at the end part of the second screw rod 32, the second screw rod 32 is in threaded connection with a sliding block 33, the sliding block 33 is rotationally connected with one end of a supporting rod 34, the other end of the supporting rod 34 is rotationally connected with the middle position of the side surface of the workbench 6, as shown in fig. 3 and 4, according to the inclination angle of a section bar required to be processed, the second knob 31 is rotated, the second screw rod 32 is driven to rotate through the second knob 31, the sliding block 33 is driven to move through the second screw rod 32, one end of the workbench 6 is driven to move along the circumferential direction through the supporting rod 34, so that the inclination angle of the workbench 6 is adjusted, the section bar is in an inclined state, and the section bar is processed by the inclined hole.

The fixing unit 4 comprises a bidirectional screw 44 and a stop block 45, the bidirectional screw 44 is rotationally connected with the workbench 6, threads at two ends of the bidirectional screw 44 are opposite in direction, a knob III 43 is arranged at the end part of the bidirectional screw 44, two opposite threads at two ends of the bidirectional screw 44 are respectively in threaded connection with a movable block 42, clamping plates 41 are arranged on the two movable blocks 42, the stop block 45 is arranged at the middle position of the lower end of the workbench 6, as shown in fig. 1 and 4, a section bar is placed on the workbench 6, the lower end of the section bar is placed on the stop block 45, one end of the section bar is blocked and limited through the stop block 45, a knob III 43 is rotated, the bidirectional screw 44 drives the bidirectional screw 44 to rotate through the knob III 43, the clamping plates 41 are driven to move through the movable blocks 42, the section bar is clamped and fixed through the clamping plates 41, and the section bar is prevented from moving through the blocking limit of the stop block 45 and the clamping plates 41 when inclined holes are drilled.

The fixing unit 4 further comprises anti-slip strips 46, the anti-slip strips 46 are equidistantly arranged on the side face of the clamping plate 41, as shown in fig. 2 and 4, when the clamping plate 41 clamps the profile, the anti-slip strips 46 are used for protecting the profile, damage to the surface of the profile when the clamping plate 41 clamps is avoided, the anti-slip performance of the clamping plate 41 is improved through the anti-slip strips 46, and the firmness of the clamping plate 41 when the clamping plate clamps the profile is improved.

Working principle: when in operation, the section bar is placed on the workbench 6, the lower end of the section bar is placed on the stop block 45, the knob III 43 is rotated, the bidirectional screw rod 44 is driven to rotate by the knob III 43, the bidirectional screw rod 44 drives the clamping plate 41 to move by the movable block 42, the clamping plate 41 clamps the section bar by the anti-slip strip 46, the knob II 31 is rotated, the screw II 32 is driven by the knob II 31 to rotate, the slide block 33 is driven by the screw II 32 to move, one end of the workbench 6 is driven by the slide block 33 to move along the circumferential direction by the support rod 34, so that the inclination angle of the workbench 6 is adjusted, the section bar is in an inclined state, the limiting sleeve 25 with the same inclination angle of the lower surface of the limiting sleeve 25 and the inclination angle of the section bar is selected according to the inclination angle of the section bar, the positioning plate 27 is aligned with the positioning groove 213, and the positioning plate 27 is slidably arranged in the positioning groove 213, the positioning plate 27 pushes the locking block 29, the locking block 29 drives the sliding rod 211 to move and compresses the spring 210, the positioning plate 27 enters into the positioning groove 213, when the locking groove 28 moves to a position corresponding to the locking block 29, under the action of the elastic force of the spring 210, the locking block 29 slides into the locking groove 28 so as to fix the positioning plate 27, thereby completing the installation of the limit sleeve 25, the supporting plate 5 is driven to move by the displacement mechanism 14, the workbench 6 is driven to move by the supporting plate 5, the drilling position of the section bar is moved to the right lower part of the drill bit 13, the knob one 21 is rotated, the screw one 22 is driven to rotate by the knob one 21, the mounting seat 24 and the limit sleeve 25 are driven by the fixing plate 23, and the mounting seat 24 and the limit sleeve 25 are pressed on the surface of the section bar, at the moment, the drill bit 13, the processing position of section bar, mount pad 24 and stop collar 25's central through hole position are on same vertical, realize the quick location to stop collar 25 and processing position, when carrying out the multi-angle drilling, only need to carry out the location to section bar processing position and drill bit 13, the operating procedure when reducing the location, thereby effectively improve drill bit 13, stop collar 25 and section bar location's efficiency and accuracy, drive drill bit 13 through aircraft nose 12 and go up and down to rotate, carry out the inclined hole to the section bar through the central through hole of drill bit 13 through mount pad 24 and stop collar 25, when the chip when drilling is discharged through junk slot 26, carry out spacingly to drill bit 13 through stop collar 25, avoid appearing the skew when drill bit 13 drills, simultaneously, compress tightly the section bar through the laminating of stop collar 25 at the section bar surface, effectively reduce the production of burr around the drilling.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. The section inclined hole machining device is characterized by comprising a drilling unit (1), a limiting unit (2), a supporting plate (5) and a workbench (6), wherein the limiting unit (2) and the supporting plate (5) are arranged on the drilling unit (1), an inclination angle unit (3) is arranged on the supporting plate (5), the workbench (6) is arranged on the inclination angle unit (3), a fixing unit (4) is arranged on the workbench (6), and one end of the workbench (6) is rotationally connected with the supporting plate (5);

The drilling unit (1) comprises a mounting frame (11), wherein a machine head (12) and a displacement mechanism (14) are respectively arranged on the mounting frame (11), the machine head (12) is positioned right above the displacement mechanism (14), the displacement mechanism (14) is connected with the supporting plate (5), and a drill bit (13) is arranged on the machine head (12);

The limiting unit (2) comprises a first screw (22), a mounting seat (24), a limiting sleeve (25) and a locking assembly, wherein the first screw (22) is in threaded connection with the mounting frame (11), the first screw (22) is located at two sides of the machine head (12), a first knob (21) is arranged at the upper end of the first screw (22), the mounting seat (24) is located under the drill bit (13), fixing plates (23) are respectively arranged at two sides of the mounting seat (24), the fixing plates (23) are rotationally connected with the first screw (22), two positioning grooves (213) are formed in the lower surface of the mounting seat (24), the locking assembly is arranged in the positioning grooves (213), the limiting sleeve (25) is located under the mounting seat (24), a positioning plate (27) is arranged on the upper surface of the limiting sleeve (25), the positioning plate (27) is in sliding connection with the positioning grooves (213), and the center positions of the mounting seat (24) and the limiting sleeve (25) are provided with inclined surfaces.

2. The profile inclined hole machining device according to claim 1, wherein: the locking assembly comprises a sliding rod (211) and a locking groove (28), the sliding rod (211) is in sliding connection with the mounting seat (24), a shifting piece (212) is arranged at one end of the sliding rod (211), a locking block (29) is arranged at one end of the sliding rod (211) located in the positioning groove (213), the lower surface of the locking block (29) is arc-shaped, a spring (210) is sleeved on the part of the sliding rod (211) located in the positioning groove (213), the locking groove (28) is arranged on the side face of the positioning plate (27), and the locking groove (28) is in sliding connection with the locking block (29).

3. The profile inclined hole machining device according to claim 1, wherein: the limiting unit (2) further comprises a chip removal groove (26), the chip removal groove (26) is arranged on the side face of the lower end of the limiting sleeve (25), and an opening of the chip removal groove (26) faces the lowest end of the workbench (6).

4. The profile inclined hole machining device according to claim 1, wherein: the inclination unit (3) comprises a second screw rod (32), the second screw rod (32) is rotationally connected with the supporting plate (5), a second knob (31) is arranged at the end part of the second screw rod (32), the second screw rod (32) is in threaded connection with a sliding block (33), the sliding block (33) is rotationally connected with one end of a supporting rod (34), and the other end of the supporting rod (34) is rotationally connected with the middle position of the side surface of the workbench (6).

5. The profile inclined hole machining device according to claim 1, wherein: the fixing unit (4) comprises a bidirectional screw (44) and a stop block (45), the bidirectional screw (44) is rotationally connected with the workbench (6), threads at two ends of the bidirectional screw (44) are opposite in direction, a knob III (43) is arranged at the end part of the bidirectional screw (44), threads on opposite threads at two ends of the bidirectional screw (44) are respectively connected with a movable clamp plate (41) quickly (42), and the stop block (45) is arranged at the middle position of the lower end of the workbench (6).

6. The profile inclined hole machining device according to claim 5, wherein: the fixing unit (4) further comprises anti-slip strips (46), and the anti-slip strips (46) are equidistantly arranged on the side face of the clamping plate (41).