Mechanical tapper

Abstract

The invention belongs to the technical field of tappers, and particularly relates to a mechanical tapper which comprises a base, a tapping sliding seat is horizontally and slidably connected to the inner side of the base, a workpiece is placed on the inner side of the tapping sliding seat, a locking structure is arranged at the bottom of the tapping sliding seat, and an auxiliary positioning structure is arranged on one side of the tapping sliding seat; the top end of the base is rotationally connected with a tapping structure, the output end of the tapping structure corresponds to a workpiece, the bottom of the tapping structure is in transmission connection with the top of the tapping sliding seat, the top end of the base is fixedly connected with an angle adjusting structure, and the tapping structure is clamped with the angle adjusting structure; the top of the tapping structure is in transmission connection with a first driving structure. According to the mechanical tapper, through the structures, multi-angle tapping can be conducted on a workpiece, meanwhile, operation is convenient, and dependence on manpower is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of hole openers, and in particular relates to a mechanical hole opener. Background Art

[0002] Manual hole openers are commonly used tools in power construction and installation projects. They can open holes for equipment clamps, arrester lead wire noses, cable equipment clamps, cable brackets, etc. in an off-power environment. Especially in field construction, the operation links are complicated. In order to standardize the installation of equipment components, on-site design and processing are often required. Manual hole openers can realize the opening processing of connecting components.

[0003] However, traditional manual hole openers generally require at least two people to complete the drilling operation, which will result in more manpower consumption and reduce the operation speed. At the same time, traditional hole openers cannot drill holes with a certain angle and have poor adaptability. For some workpieces, holes with a certain angle are required to facilitate subsequent operations.

[0004] The invention patent with the authorization announcement number CN101003135B discloses a universal hole opener, including an oil pump body, which is connected to the oil cylinder and the oil storage chamber through oil circuits, and a pressurizing mechanism for pressing the power oil in the oil storage chamber into the oil cylinder is provided on the oil pump body, and a male mold for opening a hole is fixedly connected to the piston rod of the oil cylinder, and a rigid movable connection mechanism for connecting the oil circuits of the two is provided between the oil cylinder and the oil pump body. Although the hole opener can adjust the position of the hole to meet different hole opening needs, it cannot open a hole with an angle on the part.

[0005] Therefore, there is an urgent need for a mechanical hole opener that is easy to operate and can punch holes with a certain angle. Summary of the invention

[0006] The object of the present invention is to provide a mechanical hole opener to solve the above problems.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] A mechanical hole opener comprises: a base, a hole opening slide seat is horizontally slidably connected to the inner side of the base, a workpiece is placed inside the hole opening slide seat, a locking structure is provided at the bottom of the hole opening slide seat, and an auxiliary positioning structure is provided on one side of the hole opening slide seat;

[0009] The top of the base is rotatably connected to an opening structure, the output end of the opening structure corresponds to the workpiece, the bottom of the opening structure is transmission-connected to the top of the opening slide seat, the top of the base is fixedly connected to an angle adjustment structure, and the opening structure is clamped with the angle adjustment structure;

[0010] The top of the opening structure is transmission-connected with a first driving structure.

[0011] Preferably, the perforated sliding seat comprises a sliding seat, the sliding seat is horizontally slidably connected to the inner side of the base, a rack is fixedly connected to the top surface of the sliding seat, and the rack is drivingly connected to the perforated structure;

[0012] A placement groove is provided on the inner side of the sliding seat, the workpiece is placed on the inner side of the placement groove, the locking structure is provided on the bottom surface of the placement groove, the auxiliary positioning structure is provided on one side of the placement groove, and both sides of the base are provided with clearance grooves, the clearance grooves correspond to the placement grooves;

[0013] The top surface of the sliding seat is provided with a first slot, and the bottom surface of the sliding seat is provided with a second slot. The first slot and the second slot are respectively connected to the placement slot, and the first slot and the second slot are vertically corresponding to the output end of the opening structure.

[0014] Preferably, slide rails are fixedly connected to both sides of the sliding seat, a slide groove is provided on the inner side of the base, and the slide rails are horizontally slidably connected to the slide groove.

[0015] Preferably, the locking structure comprises a rotating plate, one end of which is rotatably connected to the bottom surface of the sliding seat, the other end of which is rotatably connected to a clamping plate, one end of the sliding seat is fixedly connected to a clamping joint, and the clamping plate is clamped to the clamping joint;

[0016] An adjustable pressing structure is provided in the middle of the rotating plate.

[0017] Preferably, the adjustable pressing structure comprises a support plate, the support plate is arranged inside the placement groove, and a through hole is opened in the middle of the support plate;

[0018] The bottom surface of the support plate is rotatably connected to two clamping bolts, the axes of the clamping bolts are vertically arranged, the bottom ends of the clamping bolts sequentially penetrate the sliding seat and the rotating plate, and the clamping bolts are threadedly connected to the rotating plate.

[0019] Preferably, two locking clamps are fixedly connected to the top surface of the support plate, the two locking clamps are arranged on both sides of the through hole, and a plurality of slots are formed at equal intervals on the top surface of the locking clamps.

[0020] Preferably, the auxiliary positioning structure includes a positioning plate, which is slidably connected to the inner top surface of the placement groove, and the positioning plate abuts against one side of the workpiece. The side of the positioning plate away from the workpiece is rotatably connected to one end of a positioning screw, and the other end of the positioning screw passes through the sliding seat, and the positioning screw is threadedly connected to the sliding seat.

[0021] Preferably, the opening structure includes a rotating seat, the rotating seat is rotatably connected to the top of the base, a gear is fixedly connected to the side of the rotating seat, the gear is meshed with the rack, a support plate is fixedly connected to one side of the rotating seat, an angle locking bolt is threadedly connected to the top of the support plate, and the angle locking bolt is clamped with the angle adjustment structure;

[0022] The two ends of the rotating seat are rotatably connected to connecting arms, and one end of the connecting arm away from the rotating seat is rotatably connected to the middle part of the transmission arm;

[0023] The bottoms of the two transmission arms are rotatably connected to the same connection seat, the middle of the connection seat is vertically threadedly connected to a hole column head, an opening is opened on the rotating seat, and the middle of the hole column head is slidably connected to the inner side of the opening;

[0024] The top ends of the two transmission arms are transmission-connected to the first driving structure.

[0025] Preferably, the angle adjustment structure comprises a connecting plate, the bottom end of the connecting plate is fixedly connected to one side of the base, the top end of the connecting plate is fixedly connected to an arc plate, an arc groove is formed on the arc plate, and an angle marking line is formed on a portion of the arc plate close to the arc groove;

[0026] The angle locking bolt is slidably connected to the inner side of the arc groove.

[0027] Preferably, the first driving structure comprises two first connecting blocks, the two first connecting blocks are rotatably connected to the top ends of the corresponding transmission arms, the two first connecting blocks are threadedly connected to the same bidirectional screw, one of the first connecting blocks is connected to the positive thread of the bidirectional screw, and the other first connecting block is connected to the reverse thread of the bidirectional screw;

[0028] One end of the bidirectional screw passes through the first connecting block and is axially connected to a docking joint. A square hole is formed on the side of the docking joint away from the bidirectional screw. A square rod is clamped in the square hole. The square rod is axially connected to the output shaft of the first motor.

[0029] Compared with the prior art, the present invention has the following advantages and technical effects:

[0030] The device sets a base to allow the hole-drilling slide to slide inside the base, thereby ensuring that the hole-drilling position of the workpiece is aligned with the output end of the hole-drilling structure. Through the transmission connection between the hole-drilling slide and the hole-drilling structure, the hole-drilling structure can control the sliding of the hole-drilling slide, and the hole-drilling position of the workpiece can be aligned with the output end of the hole-drilling structure without the need for human control of the sliding of the hole-drilling slide.

[0031] By providing a locking structure, the workpiece can be stably fixed inside the opening slide seat.

[0032] By setting up the auxiliary positioning structure, the position of the workpiece can be fixed more conveniently.

[0033] By providing the first driving structure, the device does not need human power, and the operator only needs to hold the first driving structure and stabilize the overall structure of the device.

[0034] The hole-opening operation can be achieved by controlling the start-up of the first driving structure.

[0035] Through these structures, the device realizes a mechanical hole opener that can open holes in workpieces at multiple angles and is easy to operate and reduces dependence on manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0037] Figure 1 It is a schematic diagram of the overall structure of the first embodiment;

[0038] Figure 2 This is a schematic diagram of the front view structure after adjusting the opening angle of the first embodiment;

[0039] Figure 3 This is a schematic diagram of the explosion structure of Example 1;

[0040] Figure 4 It is an exploded schematic diagram of the opening slide, the locking structure, and the auxiliary positioning structure;

[0041] Figure 5 It is an exploded schematic diagram of the open hole structure;

[0042] Figure 6 It is a structural schematic diagram of the base and the angle adjustment structure;

[0043] Figure 7 is a structural schematic diagram of the first driving structure in Embodiment 1;

[0044] Figure 8 It is a schematic diagram of the overall structure of the second embodiment;

[0045] Fig. 9 is a structural schematic diagram of the second driving structure in the second embodiment;

[0046] Fig.10 This is a schematic diagram of the overall structure of Embodiment 3;

[0047] Fig.11This is a schematic diagram of the structure of the third driving structure in the third embodiment.

[0048] Among them, 1. base; 2. perforated sliding seat; 3. perforated structure; 4. locking structure; 5. auxiliary positioning structure; 6. angle adjustment structure; 7. first driving structure; 9. second driving structure; 10. third driving structure; 101. slide groove; 102. yield groove; 201. sliding seat; 202. placement groove; 203. slide rail; 204. rack; 205. clamping joint; 206. first slot; 207. second slot; 301. rotating seat; 302. perforated; 303. connecting arm; 305. support plate; 306. gear; 307. angle locking bolt; 308. transmission arm; 309. connecting seat; 310. perforated column head; 401 , rotating plate; 402, clamping plate; 403, supporting plate; 404, clamping bolt; 405, locking clamp; 501, positioning plate; 502, positioning screw; 601, connecting plate; 602, arc plate; 603, arc groove; 701, first connecting block; 702, bidirectional screw; 703, docking joint; 704, square hole; 705, square rod; 706, first motor; 901, second connecting block; 902, first connecting rod; 903, docking seat; 904, second connecting rod; 905, mounting seat; 906, second motor; 907, first screw; 1001, second screw; 1002, third connecting block; 1003, third motor. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] Embodiment 1:

[0052] Reference Figures 1 to 7 This embodiment discloses a mechanical hole opener, comprising: a base 1, a hole opening slide seat 2 is horizontally slidably connected to the inner side of the base 1, a workpiece is placed inside the hole opening slide seat 2, a locking structure 4 is provided at the bottom of the hole opening slide seat 2, and an auxiliary positioning structure 5 is provided on one side of the hole opening slide seat 2;

[0053] The top of the base 1 is rotatably connected with an opening structure 3, the output end of the opening structure 3 corresponds to the workpiece, the bottom of the opening structure 3 is transmission-connected with the top of the opening slide 2, the top of the base 1 is fixedly connected with an angle adjustment structure 6, and the opening structure 3 is clamped with the angle adjustment structure 6;

[0054] The top of the opening structure 3 is transmission-connected with a first driving structure 7 .

[0055] By providing a base 1, the device allows the hole-drilling slide 2 to slide inside the base 1, so as to ensure that the position of the workpiece to be drilled is aligned with the output end of the hole-drilling structure 3. Through the transmission connection between the hole-drilling slide 2 and the hole-drilling structure 3, the hole-drilling structure 3 can control the sliding of the hole-drilling slide 2, so that the position of the workpiece to be drilled can be aligned with the output end of the hole-drilling structure 3 without human control of the sliding of the hole-drilling slide 2. By providing a locking structure 4, the workpiece can be stably fixed on the inside of the hole-drilling slide 2. By providing an auxiliary positioning structure 5, the position of the workpiece can be fixed more conveniently. By providing a first drive structure 7, the device does not need human power. The operator only needs to hold the first drive structure 7 and stabilize the overall structure of the device. The hole-drilling operation can be achieved by controlling the start of the first drive structure 7.

[0056] Through these structures, the device realizes a mechanical hole opener that can open holes in workpieces at multiple angles and is easy to operate and reduces dependence on manual labor.

[0057] According to a further optimized solution, the perforated slide seat 2 includes a slide seat 201, which is horizontally slidably connected to the inner side of the base 1, and a rack 204 is fixedly connected to the top surface of the slide seat 201, and the rack 204 is transmission-connected to the perforated structure 3;

[0058] A placement groove 202 is provided inside the sliding seat 201, and the workpiece is placed inside the placement groove 202. The locking structure 4 is provided on the bottom surface of the placement groove 202, and the auxiliary positioning structure 5 is provided on one side of the placement groove 202. The base 1 has two sides respectively provided with clearance grooves 102, and the clearance grooves 102 correspond to the placement groove 202.

[0059] The top surface of the sliding seat 201 is provided with a first slot 206 , and the bottom surface of the sliding seat 201 is provided with a second slot 207 . The first slot 206 and the second slot 207 are respectively connected to the placement slot 202 , and the first slot 206 and the second slot 207 are vertically corresponding to the output end of the opening structure 3 .

[0060] By providing the rack 204 , the sliding seat 201 can be stably connected to the opening structure 3 in a transmission manner, and by providing the first slot 206 and the second slot 207 , the upper opening column head 310 can pass through.

[0061] According to a further optimized solution, slide rails 203 are fixedly connected to both sides of the slide seat 201 , a slide groove 101 is provided on the inner side of the base 1 , and the slide rails 203 are horizontally slidably connected to the slide groove 101 .

[0062] The cooperation between the slide rail 203 and the slide groove 101 allows the slide seat 201 to slide stably inside the base 1 .

[0063] Further optimizing the solution, the locking structure 4 includes a rotating plate 401, one end of the rotating plate 401 is rotatably connected to the bottom surface of the sliding seat 201, the other end of the rotating plate 401 is rotatably connected to a clamping plate 402, one end of the sliding seat 201 is fixedly connected to a clamping joint 205, and the clamping plate 402 is clamped with the clamping joint 205;

[0064] An adjustable pressing structure is provided in the middle of the rotating plate 401 .

[0065] By setting the locking structure 4, the device can lock the workpiece to be drilled inside the placement groove 202. When in use, the adjustable clamping structure is first adjusted to a suitable height, and then the workpiece is clamped between the adjustable clamping structure and the placement groove 202. Then, by rotating the rotating plate 401 and rotating the clamping plate 402, the clamping plate 402 is clamped with the clamping joint 205 to achieve stable clamping of the workpiece. For processing workpieces of the same size, there is no need to adjust the height of the adjustable clamping structure, and only the clamping plate 402 and the clamping joint 205 need to be clamped, which is convenient and quick.

[0066] Further optimizing the scheme, the adjustable pressing structure includes a support plate 403, the support plate 403 is arranged inside the placement groove 202, and a through hole is opened in the middle of the support plate 403;

[0067] The bottom surface of the support plate 403 is rotatably connected to two clamping bolts 404 , the axes of the clamping bolts 404 are vertically arranged, the bottom ends of the clamping bolts 404 pass through the sliding seat 201 and the rotating plate 401 in sequence, and the clamping bolts 404 are threadedly connected to the rotating plate 401 .

[0068] The device provides a support plate 403 and adjusts the height of the support plate 403 through two clamping bolts 404, so that the support plate 403 can stably clamp and fix the workpiece.

[0069] According to a further optimized solution, two locking clamps 405 are fixedly connected to the top surface of the support plate 403 . The two locking clamps 405 are arranged on both sides of the through hole, and a plurality of slots are opened at equal intervals on the top surface of the locking clamps 405 .

[0070] The provision of the locking clamp 405 can further fix the workpiece to prevent the workpiece from sliding.

[0071] According to a further optimization scheme, the auxiliary positioning structure 5 includes a positioning plate 501, which is slidably connected to the inner top surface of the placement groove 202, the positioning plate 501 abuts against one side of the workpiece, and the side of the positioning plate 501 away from the workpiece is rotatably connected to one end of the positioning screw 502, and the other end of the positioning screw 502 passes through the sliding seat 201, and the positioning screw 502 is threadedly connected to the sliding seat 201.

[0072] By setting a positioning plate 501, the device can assist in positioning the workpiece. Before placing the workpiece, it is only necessary to adjust the positioning screw 502 to push the position of the positioning plate 501. After the workpiece is placed, the workpiece abuts against the positioning plate 501 to achieve positioning. This can handle a large number of workpieces of the same size and ensure the position of the opening.

[0073] Further optimized solution, the opening structure 3 includes a rotating seat 301, the rotating seat 301 is rotatably connected to the top of the base 1, a gear 306 is fixedly connected to the side of the rotating seat 301, the gear 306 is meshed with the rack 204, a support plate 305 is fixedly connected to one side of the rotating seat 301, and an angle locking bolt 307 is threadedly connected to the top of the support plate 305, and the angle locking bolt 307 is clamped with the angle adjustment structure 6;

[0074] The two ends of the rotating seat 301 are rotatably connected to the connecting arms 303, and one end of the connecting arm 303 away from the rotating seat 301 is rotatably connected to the middle part of the transmission arm 308;

[0075] The bottom of the two transmission arms 308 are rotatably connected to the same connection seat 309, the middle of the connection seat 309 is vertically threadedly connected to a hole column head 310, the rotating seat 301 is provided with a hole 302, and the middle of the hole column head 310 is slidably connected to the inner side of the hole 302;

[0076] The top ends of the two transmission arms 308 are transmission-connected to the first driving structure 7 .

[0077] When the transmission arm 308 rotates with the connecting arm 303 as the axis, the connecting seat 309 can be pushed to move downward, and the hole-opening column head 310 can be pushed downward, thereby opening a hole in the workpiece.

[0078] Further optimizing the scheme, the angle adjustment structure 6 includes a connecting plate 601, the bottom end of the connecting plate 601 is fixedly connected to one side of the base 1, the top of the connecting plate 601 is fixedly connected to an arc plate 602, the arc plate 602 is provided with an arc groove 603, and the part of the arc plate 602 close to the arc groove 603 is provided with an angle marking line;

[0079] The angle locking bolt 307 is slidably connected to the inner side of the arc groove 603 .

[0080] In this device, by locking the angle locking bolt 307, the angle locking bolt 307 can be fixed to the arc groove 603. When in use, the angle of the opening structure 3 can be changed by adjusting the angle locking bolt 307, so that the workpiece can be opened at different angles.

[0081] Further optimized, the first driving structure 7 includes two first connecting blocks 701, the two first connecting blocks 701 are rotatably connected to the top of the corresponding transmission arm 308, the two first connecting blocks 701 are threadedly connected to the same bidirectional screw 702, one first connecting block 701 is connected to the bidirectional screw 702 by a positive thread, and the other first connecting block 701 is connected to the bidirectional screw 702 by a reverse thread;

[0082] One end of the bidirectional screw 702 passes through the first connecting block 701 and is axially connected to a docking joint 703 . A square hole 704 is formed on the side of the docking joint 703 away from the bidirectional screw 702 . A square rod 705 is clamped in the square hole 704 . The square rod 705 is axially connected to the output shaft of the first motor 706 .

[0083] The rotation of the first motor 706 drives the bidirectional screw 702 to rotate, so that the two transmission arms 308 can be brought closer to each other, thereby controlling the drilling column head 310 to move downward to perform drilling operations on the workpiece.

[0084] Embodiment 2:

[0085] Reference Figures 8 to 9 The difference between this embodiment and the first embodiment is that: the top of the opening structure 3 is transmission-connected with the second driving structure 9, the second driving structure 9 includes two second connecting blocks 901, the two second connecting blocks 901 are rotationally connected to the top of the corresponding transmission arm 308, one side of the second connecting block 901 is rotationally connected with the first connecting rod 902 and the second connecting rod 904, the two first connecting rods 902 are rotationally connected to the same docking seat 903, the two second connecting rods 904 are rotationally connected to the same mounting seat 905, the mounting seat 905 is fixedly connected with a second motor 906, the output shaft of the second motor 906 is connected to a first screw 907, and the first screw 907 is threadedly connected to the docking seat 903.

[0086] In actual use of this embodiment, by controlling the second motor 906 to rotate and pushing the first screw 907 to rotate, the docking seat 903 and the mounting seat 905 can be moved away from each other, and the two transmission arms 308 are pulled closer to each other by the first connecting rod 902 and the second connecting rod 904, so that the transmission arms 308 are driven.

[0087] Compared with the first embodiment, the second motor 906 can be driven without the need for a worker to hold the second motor 906, and the present embodiment is more convenient to use.

[0088] Embodiment three:

[0089] Reference Figure 10 to Figure 11 The difference between this embodiment and the first embodiment is that: the top of the opening structure 3 is transmission-connected with the third driving structure 10, the third driving structure 10 includes two third connecting blocks 1002, the two third connecting blocks 1002 are rotationally connected to the top of the corresponding transmission arm 308, one of the third connecting blocks 1002 is fixedly connected with the third motor 1003, the output shaft of the third motor 1003 is connected with the second screw 1001, and the end of the second screw 1001 away from the third motor 1003 is threadedly connected to the other third connecting block 1002.

[0090] This embodiment is driven by the third motor 1003 and has a simpler structure and is easier to maintain than the first embodiment.

[0091] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0092] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A mechanical hole opener, characterized in that: include: A base (1), wherein the inner side of the base (1) is horizontally slidably connected to a perforated slide seat (2), a workpiece is placed on the inner side of the perforated slide seat (2), a locking structure (4) is provided at the bottom of the perforated slide seat (2), and an auxiliary positioning structure (5) is provided on one side of the perforated slide seat (2); The top of the base (1) is rotatably connected to an opening structure (3), the output end of the opening structure (3) corresponds to the workpiece, the bottom of the opening structure (3) is transmission-connected to the top of the opening slide seat (2), the top of the base (1) is fixedly connected to an angle adjustment structure (6), and the opening structure (3) is snap-fitted to the angle adjustment structure (6); The top of the opening structure (3) is transmission-connected to a first driving structure (7).

2. A mechanical hole opener according to claim 1, characterized in that: The perforated sliding seat (2) comprises a sliding seat (201), the sliding seat (201) is horizontally slidably connected to the inner side of the base (1), a rack (204) is fixedly connected to the top surface of the sliding seat (201), and the rack (204) is drivingly connected to the perforated structure (3); A placement groove (202) is provided on the inner side of the sliding seat (201), the workpiece is placed on the inner side of the placement groove (202), the locking structure (4) is provided on the bottom surface of the placement groove (202), the auxiliary positioning structure (5) is provided on one side of the placement groove (202), and the base (1) has two sides respectively provided with clearance grooves (102), the clearance grooves (102) corresponding to the placement groove (202); The top surface of the sliding seat (201) is provided with a first slot (206), and the bottom surface of the sliding seat (201) is provided with a second slot (207). The first slot (206) and the second slot (207) are respectively connected to the placement slot (202), and the first slot (206) and the second slot (207) are vertically corresponding to the output end of the opening structure (3).

3. A mechanical hole opener according to claim 2, characterized in that: Slide rails (203) are fixedly connected to both sides of the sliding seat (201), a slide groove (101) is provided on the inner side of the base (1), and the slide rails (203) are horizontally slidably connected to the slide groove (101).

4. A mechanical hole opener according to claim 2, characterized in that: The locking structure (4) comprises a rotating plate (401), one end of the rotating plate (401) is rotatably connected to the bottom surface of the sliding seat (201), the other end of the rotating plate (401) is rotatably connected to a clamping plate (402), one end of the sliding seat (201) is fixedly connected to a clamping joint (205), and the clamping plate (402) is clamped to the clamping joint (205); An adjustable pressing structure is provided in the middle of the rotating plate (401).

5. A mechanical hole opener according to claim 4, characterized in that: The adjustable pressing structure comprises a support plate (403), the support plate (403) is arranged inside the placement groove (202), and a through hole is opened in the middle of the support plate (403); The bottom surface of the support plate (403) is rotatably connected to two clamping bolts (404), the axes of the clamping bolts (404) are vertically arranged, the bottom ends of the clamping bolts (404) pass through the sliding seat (201) and the rotating plate (401) in sequence, and the clamping bolts (404) are threadedly connected to the rotating plate (401).

6. A mechanical hole opener according to claim 5, characterized in that: Two locking clamps (405) are fixedly connected to the top surface of the support plate (403), and the two locking clamps (405) are arranged on both sides of the through hole. The top surface of the locking clamp (405) is provided with a plurality of slots at equal intervals.

7. A mechanical hole opener according to claim 2, characterized in that: The auxiliary positioning structure (5) comprises a positioning plate (501), the positioning plate (501) is slidably connected to the inner top surface of the placement groove (202), the positioning plate (501) is in contact with one side of the workpiece, and the side of the positioning plate (501) away from the workpiece is rotatably connected to one end of a positioning screw (502), the other end of the positioning screw (502) passes through the sliding seat (201), and the positioning screw (502) is threadedly connected to the sliding seat (201).

8. A mechanical hole opener according to claim 2, characterized in that: The opening structure (3) comprises a rotating seat (301), the rotating seat (301) is rotatably connected to the top of the base (1), a gear (306) is fixedly connected to the side of the rotating seat (301), the gear (306) is meshed with the rack (204), a support plate (305) is fixedly connected to one side of the rotating seat (301), an angle locking bolt (307) is threadedly connected to the top of the support plate (305), and the angle locking bolt (307) is clamped to the angle adjustment structure (6); The two ends of the rotating seat (301) are rotatably connected to connecting arms (303), and one end of the connecting arm (303) away from the rotating seat (301) is rotatably connected to the middle part of the transmission arm (308); The bottoms of the two transmission arms (308) are rotatably connected to the same connection seat (309), the middle of the connection seat (309) is vertically threadedly connected to a perforated column head (310), an opening (302) is opened on the rotating seat (301), and the middle of the perforated column head (310) is slidably connected to the inner side of the opening (302); The top ends of the two transmission arms (308) are transmission-connected to the first driving structure (7).

9. A mechanical hole opener according to claim 8, characterized in that: The angle adjustment structure (6) comprises a connecting plate (601), the bottom end of the connecting plate (601) is fixedly connected to one side of the base (1), the top end of the connecting plate (601) is fixedly connected to an arc plate (602), an arc groove (603) is provided on the arc plate (602), and an angle marking line is provided on a portion of the arc plate (602) close to the arc groove (603); The angle locking bolt (307) is slidably connected to the inner side of the arc-shaped groove (603).

10. The mechanical hole opener according to claim 8, characterized in that: The first driving structure (7) comprises two first connecting blocks (701), the two first connecting blocks (701) are rotatably connected to the top ends of the corresponding transmission arms (308), the two first connecting blocks (701) are threadedly connected to the same bidirectional screw (702), one of the first connecting blocks (701) is connected to the bidirectional screw (702) by a positive thread, and the other of the first connecting blocks (701) is connected to the bidirectional screw (702) by a negative thread; One end of the bidirectional screw (702) passes through the first connecting block (701) and is axially connected to a docking joint (703); a square hole (704) is provided on a side of the docking joint (703) away from the bidirectional screw (702); a square rod (705) is clamped in the square hole (704); and the square rod (705) is axially connected to an output shaft of a first motor (706).

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