Drilling device for mechanical manufacturing

Abstract

The invention relates to the technical field of drilling devices, in particular to a drilling device for mechanical manufacturing, which comprises a drilling machine body, a drilling assembly, a transverse deflection assembly and a vertical deflection assembly, a lifting platform and a clamping seat are arranged on the drilling machine body, and the drilling assembly comprises a first motor and a drill bit assembly which are connected. The drill bit assembly comprises an outer cylinder, an outer drill body, a middle drill body and an inner drill body, the outer drill body, the middle drill body and the inner drill body are arranged in the outer cylinder and concentrically arranged from outside to inside, and the transverse deflection assembly and the vertical deflection assembly are matched so that the angle can be adjusted when an inclined hole is drilled in a workpiece to be drilled. During drilling, a drill bit does not need to be replaced, or another drilling machine does not need to be used for machining, so that the operation process becomes simpler, drilling and chambering can be completed at a time during drilling, position deviation possibly caused by multiple times of operation is reduced, it can be ensured that the position of a hole is more accurate, multiple times of clamping and adjusting are not needed, and the machining efficiency is improved. A large amount of time is saved, and the production progress is accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of drilling devices, in particular to a drilling device for mechanical manufacturing. Background Art

[0002] Mechanical manufacturing refers to the process of processing raw materials into required products through various mechanical equipment and process methods. Among them, drilling machines are widely used in modern industry and are common mechanical manufacturing and processing equipment. They are mostly used for processes such as drilling and tapping. Drilling machines are divided into two categories: ordinary drilling machines and CNC drilling machines. In the modern mechanical manufacturing and processing process, it is often necessary to complete one, two or more processes of drilling, expanding holes and tapping of workpieces.

[0003] Most of the existing drilling machines have a fixed drill bit. During the process of drilling a workpiece, the drill bit needs to be replaced or another drilling machine needs to be used for processing. This makes the operation process more complicated and easily reduces the processing accuracy and efficiency. In addition, when multiple drilling processes are required, such as drilling a small hole first and then expanding the hole, if there is only one drill bit, these processes need to be performed in sequence and cannot be performed simultaneously, which further reduces the processing efficiency. Secondly, when processing long strips or cylindrical workpieces, it is often necessary to drill the outer surface. However, when drilling inclined holes, it is often necessary to manually clamp the workpiece multiple times and adjust the drilling position multiple times, which can easily cause errors in the processing of the outer surface of the workpiece, resulting in low drilling accuracy and requiring a lot of time, which reduces the processing efficiency. For this reason, we propose a drilling device for mechanical manufacturing. Summary of the invention

[0004] In order to solve the above technical problems, the embodiment of the present application provides a drilling device for mechanical manufacturing, including a drilling machine body, on which a lifting platform and a clamping seat are provided, and further comprising:

[0005] A drilling assembly is installed on the lifting platform, and the drilling assembly includes a first motor and a drill assembly connected to each other, the drill assembly includes an outer cylinder, and an outer drill body, a middle drill body and an inner drill body which are arranged in the outer cylinder and are concentrically arranged from the outside to the inside, the upper end of the outer wall of the outer drill body is fixed to the inner lower end of the outer cylinder, and a lifting adjustment assembly is also arranged in the outer cylinder, and the lifting adjustment assembly is used to make the middle drill body and the inner drill body rise and fall independently, so as to realize the independent use or coordinated use of the outer drill body, the middle drill body and the inner drill body;

[0006] A lateral deflection assembly and a vertical deflection assembly, the lateral deflection assembly is rotatably arranged on the drilling machine body, the vertical deflection assembly is arranged on the upper end surface of the lateral deflection assembly, the clamping seat is installed on the vertical deflection assembly, and the lateral deflection assembly and the vertical deflection assembly cooperate to adjust the angle when drilling an inclined hole in the workpiece to be drilled.

[0007] In some embodiments, the lifting and adjustment assembly includes a micro motor installed at the top end of the outer cylinder, the bottom end of the micro motor is connected to a screw, a screw nut seat is provided on the outside of the screw, the outer wall of the screw nut seat is connected to an outer convex plate, and the lower end surface of the outer convex plate is connected to the top of the inner drill body.

[0008] In some embodiments, the lifting and adjustment assembly also includes a first electric telescopic rod installed at the top end of the outer cylinder, a connecting circular plate is installed at the bottom end of the first electric telescopic rod, and a plurality of push rods are connected to the lower end surface of the connecting circular plate in a circular array. The push rods pass through the outer convex plate, and the bottom end of the push rods is connected to the top end of the middle drill body.

[0009] In some embodiments, the lateral deflection assembly includes an inner gear ring and a second motor. A circular groove is provided on the upper end surface of the drilling machine body. The inner gear ring is rotatably disposed in the circular groove, and a gear is meshedly connected to the inner ring of the inner gear ring. The bottom end of the gear is connected to a connecting rod that passes through the table of the drilling machine body. A second bevel gear is installed at the bottom end of the connecting rod. The second motor is installed inside the drilling machine body, and a first bevel gear is installed at the output end of the second motor. The first bevel gear is meshedly connected to the second bevel gear.

[0010] In some embodiments, the vertical deflection assembly includes an arc-shaped support plate and a fixed plate arranged up and down, the arc-shaped support plate is hinged to the fixed plate, the upper end surface of the inner gear ring is integrally formed with a convex ring, and the fixed plate is fixed to the top of the convex ring.

[0011] In some embodiments, both ends of the upper end surface of the fixing plate are integrally formed as inclined surfaces, and the inclined surfaces decrease in sequence from the middle of the upper end surface of the fixing plate to both ends.

[0012] In some embodiments, a hinge rod is fixed at the middle of the lower end surface of the arc-shaped support plate, a hinge groove is opened at the middle of the upper end surface of the fixed plate, and the hinge rod is hinged to the hinge groove.

[0013] In some embodiments, the vertical deflection assembly also includes a second electric telescopic rod, the top end of the second electric telescopic rod is hinged to one end of the lower end surface of the arc-shaped support plate, the bottom end of the second electric telescopic rod is hinged with an arc-shaped slide plate, and an arc-shaped slide groove is provided on the upper end surface of the drilling machine body and on the periphery of the circular groove, and the arc-shaped slide plate is slidably matched with the arc-shaped slide groove.

[0014] In some embodiments, a connecting strip is connected between the upper end surface of the arc-shaped slide plate and the outer wall of the convex ring.

[0015] In some embodiments, an annular guide groove is formed on the inner side wall of the circular groove, an annular guide bar is fixed to the outer wall of the inner gear ring, and the annular guide bar is slidably fitted in the annular guide groove.

[0016] The present invention has at least the following beneficial effects:

[0017] 1. Through the adjustable matching setting of the outer drill body, the middle drill body and the inner drill body, there is no need to replace the drill bit or use another drilling machine for processing when drilling, which makes the operation process simpler and improves the processing accuracy and efficiency.

[0018] 2. Drilling and hole enlarging can be completed at one time, reducing the position deviation that may be caused by multiple operations, ensuring that the hole position is more accurate, and there is no need for multiple clamping and adjustments, saving a lot of time and speeding up production progress. Secondly, operators do not need to frequently contact processing equipment and workpieces, reducing the possibility of accidents.

[0019] 3. Equipped with lateral deflection components and vertical deflection components, the arc-shaped support plate can be deflected horizontally and vertically at a certain angle, so that it can be automatically adjusted when drilling inclined holes, which is more convenient and saves trouble. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the structure from another perspective;

[0022] Figure 3 It is a structural schematic diagram of the drilling machine body of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the lateral deflection assembly and the vertical deflection assembly of the present invention in a combined state;

[0024] Figure 5 For the present invention Figure 4 A schematic diagram of the structure from another perspective;

[0025] Figure 6 It is a schematic diagram of the exploded structure of the lateral deflection assembly and the vertical deflection assembly of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the drill bit assembly of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the outer drill body, the middle drill body, the inner drill body and the lifting adjustment assembly of the present invention in a combined state;

[0028] Fig. 9 It is a schematic diagram of the exploded structure of the outer drill body, the middle drill body, the inner drill body and the lifting and adjusting assembly of the present invention;

[0029] Fig.10 It is a structural schematic diagram of the lifting platform of the present invention.

[0030] In the figure: 1-drilling machine body; 101-circular groove; 102-annular guide groove; 103-arc slide groove;

[0031] 2-lifting platform; 201-support; 202-cylinder; 203-mounting plate;

[0032] 3- Clamping seat;

[0033] 4-drilling assembly; 41-first motor; 42-drill assembly; 421-outer cylinder; 422-outer drill body; 423-middle drill body; 424-inner drill body; 425-lifting adjustment assembly; 4251-micro motor; 4252-screw; 4253-screw nut seat; 4254-outer convex plate; 4255-push rod; 4256-connecting circular plate; 4257-first electric telescopic rod;

[0034] 5-lateral deflection assembly; 51-internal gear ring; 52-second motor; 53-first bevel gear; 54-second bevel gear; 55-connecting rod; 56-annular guide bar; 57-convex ring; 58-gear;

[0035] 6-vertical deflection assembly; 61-fixed plate; 62-arc-shaped supporting plate; 63-arc-shaped sliding plate; 64-second electric telescopic rod; 65-connecting strip; 66-articulated groove; 67-articulated rod. DETAILED DESCRIPTION

[0036] 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.

[0037] Example 1: Please refer to Figure 1-Figure 10As shown, the present invention provides a technical solution: a drilling device for mechanical manufacturing, including a drilling machine body 1, a controller is installed on one side of the drilling machine body 1, and a lifting platform 2 and a clamping seat 3 are provided on the drilling machine body 1, wherein two clamping seats 3 are arranged opposite to each other, and are used to clamp the long strip or cylindrical workpiece to be drilled. The specific clamping structure can be a telescopic rod driving a clamping plate to move for clamping, or other existing methods can be used to achieve stable clamping of the workpiece to be drilled. The lifting platform 2 includes a support 201, and the support 201 is arranged The support 201 is installed on the rear side of the upper end surface of the drilling machine body 1, and a cylinder 202 is installed through the top of the support 201, and a mounting plate 203 is installed at the bottom of the cylinder 202. The mounting plate 203 is driven to rise and fall by the cylinder 202, and the lifting platform 2 can also move left and right through the left and right moving components. It is a prior art and will not be repeated here. It also includes a drilling component 4, which is installed on the mounting plate 203 of the lifting platform 2, and the drilling component 4 includes a first motor 41 and a drill head component 42 connected to each other. The first motor The drill bit assembly 42 is fixed to the first motor 41, and the top end of the drill bit assembly 42 is connected to the output end of the first motor 41 through a driving shaft. Specifically, the drill bit assembly 42 includes an outer cylinder 421 and an outer drill body 422, a middle drill body 423 and an inner drill body 424 which are arranged in the outer cylinder 421 and are concentrically arranged from the outside to the inside. The driving shaft at the output end of the first motor 41 is connected to the top end of the outer cylinder 421, and the outer drill body 422 and the middle drill body 423 are both axially provided with through grooves, and the inner diameter of the through groove on the outer drill body 422 is not less than the inner diameter of the middle drill body 424. The diameter of the middle drill body 423 is not less than the diameter of the inner drill body 424, so as to ensure that the middle drill body 423 and the inner drill body 424 can be smoothly lifted and lowered. The upper end of the outer wall of the outer drill body 422 is fixed to the inner lower end of the outer cylinder 421, and a lifting adjustment component 425 is also provided in the outer cylinder 421. The lifting adjustment component 425 is used to make the middle drill body 423 and the inner drill body 424 lift independently, so as to realize the independent use or coordinated use of the outer drill body 422, the middle drill body 423 and the inner drill body 424.

[0038] Among them, in a specific implementation mode, participation Figure 8 as well as Fig. 9 As shown, the lifting and adjusting component 425 includes a micro motor 4251 installed at the top end of the outer cylinder 421, the bottom end of the micro motor 4251 is connected to a lead screw 4252, the outside of the lead screw 4252 is provided with a lead screw nut seat 4253, the outer wall of the lead screw nut seat 4253 is connected to an outer convex plate 4254, the lower end surface of the outer convex plate 4254 is connected to the top of the inner drill body 424, the output end of the micro motor 4251 drives the lead screw 4252 to rotate, thereby realizing the movement of the lead screw nut seat 4253, and the lifting and lowering of the inner drill body 424 can be realized by controlling the forward and reverse rotation of the shaft of the lead screw micro motor 4251.

[0039] The lifting and adjusting assembly 425 also includes a first electric telescopic rod 4257 installed at the top of the inner part of the outer cylinder 421. A connecting circular plate 4256 is installed at the bottom end of the first electric telescopic rod 4257. A plurality of push rods 4255 are connected to the lower end surface of the connecting circular plate 4256 in a circular array. The push rods 4255 penetrate the outer convex plate 4254, and the bottom ends of the push rods 4255 are connected to the top of the middle drill body 423. The first electric telescopic rod 4257 is a small dynamic telescopic rod. The lifting and lowering of the middle drill body 423 can be realized by driving the push rods 4255 to lift and lower using the first electric telescopic rod 4257.

[0040] Through the above, after the workpiece is clamped by the clamping seat 3, the first motor 41 can be started to drive the drill assembly 42, and the drill assembly 42 can be used to perform a drilling operation.

[0041] The specific use of the drill bit assembly 42 can be described as follows:

[0042] 1. When only one drilling process is performed, the size of the hole to be drilled can be specifically described as follows:

[0043] (1) When drilling a small hole, the middle drill body 423 is retracted into the outer drill body 422 by using the first electric telescopic rod 4257, and the inner drill body 424 is extended downward by using the micro motor 4251, and the small hole is drilled by using the inner drill body 424;

[0044] (2) When drilling the middle hole, the inner drill body 424 is retracted by the micro motor 4251, and the middle drill body 423 is extended downward by the first electric telescopic rod 4257, and the middle drill body 423 is used to drill the middle hole;

[0045] (3) When drilling a large hole, the inner drill body 424 and the middle drill body 423 are both retracted, and the outer drill body 422 is used for drilling. The ends of the inner drill body 424 and the middle drill body 423 can be placed outside to make the start of drilling with the outer drill body 422 smoother.

[0046] 2. When drilling a small hole first and then expanding the hole, specific instructions can be given at this time (including but not limited to the following two):

[0047] (1) The middle drill body 423 and the inner drill body 424 cooperate with each other. At this time, the inner drill body 424 is used to drill a small hole first, and as the drilling continues, the middle drill body 423 can be used to expand the hole;

[0048] (2) The middle drill body 423 and the outer drill body 422 cooperate with each other. At this time, the middle drill body 423 is used to drill a small hole first, and as the drilling continues, the outer drill body 422 can be used to expand the hole.

[0049] By coordinating the outer drill body 422, the middle drill body 423 and the inner drill body 424, there is no need to replace the drill bit or use another drilling machine for processing when drilling, which makes the operation process simpler and effectively improves the processing accuracy and efficiency.

[0050] In addition, participation Figure 1 and Figure 2 As shown, the drilling device for mechanical manufacturing also includes a lateral deflection assembly 5 and a vertical deflection assembly 6. The lateral deflection assembly 5 is rotatably arranged on the drilling machine body 1, and the vertical deflection assembly 6 is arranged on the upper end surface of the lateral deflection assembly 5. The clamping seat 3 is installed on the vertical deflection assembly 6. The lateral deflection assembly 5 and the vertical deflection assembly 6 cooperate with each other to adjust the angle when drilling an inclined hole in the workpiece to be drilled, so that quick adjustment can be made for inclined holes of different angles.

[0051] In a specific embodiment, participating Figure 3-Figure 6 As shown, the lateral deflection assembly 5 includes an inner gear ring 51 and a second motor 52. A circular groove 101 is provided on the upper end surface of the drilling machine body 1. The inner gear ring 51 is rotatably arranged in the circular groove 101, and a gear 58 is meshedly connected in the inner ring of the inner gear ring 51. The bottom end of the gear 58 is connected to a connecting rod 55 that passes through the table of the drilling machine body 1. A bearing is provided at the position where the connecting rod 55 passes through the table of the drilling machine body 1. A second bevel gear 54 is installed at the bottom end of the connecting rod 55. The second motor 52 is installed inside the drilling machine body 1, and a first bevel gear 53 is installed at the output end of the second motor 52. The first bevel gear 53 is meshedly connected to the second bevel gear 54. The second motor 52 is started, and the first bevel gear 53 is driven to rotate by the second motor 52. The first bevel gear 53 drives the meshed second bevel gear 54 to rotate, and then the connecting rod 55 drives the gear 58 to rotate, which can drive the inner gear ring 51 to rotate.

[0052] participate Figure 4-Figure 6 As shown, the vertical deflection assembly 6 includes an arc-shaped support plate 62 and a fixed plate 61 which are arranged upper and lower. The arc-shaped support plate 62 is hinged to the fixed plate 61. The upper end surface of the inner gear ring 51 is integrally formed with a convex ring 57. The fixed plate 61 is fixed to the top of the convex ring 57. Both ends of the upper end surface of the fixed plate 61 are integrally formed as inclined surfaces, and the inclined surfaces decrease successively from the middle of the upper end surface of the fixed plate 61 to both ends.

[0053] The following design can be made for the arrangement of the arc-shaped supporting plate 62 being hinged to the fixed plate 61 : a hinge rod 67 is fixed in the middle of the lower end surface of the arc-shaped supporting plate 62 , a hinge groove 66 is provided in the middle of the upper end surface of the fixed plate 61 , and the hinge rod 67 is hinged to the hinge groove 66 .

[0054] participate Figure 4-Figure 6As shown, the vertical deflection assembly 6 also includes a second electric telescopic rod 64, the top end of the second electric telescopic rod 64 is hinged to one end of the lower end surface of the arc-shaped support plate 62, the bottom end of the second electric telescopic rod 64 is hinged with an arc-shaped slide 63, and an arc-shaped slide groove 103 is provided on the upper end surface of the drilling machine body 1 and located on the periphery of the circular groove 101. The arc-shaped slide groove 103 is slidably matched with the arc-shaped slide groove 103, and a connecting strip 65 is connected between the upper end surface of the arc-shaped slide groove 63 and the outer wall of the convex ring 57.

[0055] Through the above, the rotation of the inner gear ring 51 drives the fixed plate 61 to deflect synchronously, so that the workpiece to be drilled on the arc-shaped support plate 62 is deflected horizontally at a certain angle. Secondly, the second electric telescopic rod 64 can drive one end of the arc-shaped support plate 62 to rise and fall, and the rotation of the hinge rod 67 in the hinge groove 66 can realize the vertical deflection of the arc-shaped support plate 62 at a certain angle, so that when drilling inclined holes, it can be automatically adjusted, which is more convenient and saves trouble. In order to ensure the deflection angle, a deflection angle sensor can be installed, and the deflection angle can be monitored by the angle sensor.

[0056] The arc-shaped slide plate 63 slides in the arc-shaped slide groove 103 to achieve synchronous deflection of the second electric telescopic rod 64 during lateral deflection, thereby ensuring vertical deflection and avoiding jamming.

[0057] Example 2: Please refer to Figure 3-Figure 4 As shown, this embodiment is an extension of the embodiment 1. Specifically, an annular guide groove 102 is opened on the inner wall of the circular groove 101, and an annular guide bar 56 is fixed to the outer wall of the inner gear ring 51. The annular guide bar 56 is slidably fitted in the annular guide groove 102.

[0058] Through the above, the annular guide bar 56 is used to move along the annular guide groove 102, so as to ensure the stability of the inner gear ring 51 during lateral deflection and prevent it from moving upward. In order to reduce friction, rolling balls can be embedded in the inner wall of the annular guide groove 102, which can effectively reduce friction. The reduced friction also reduces the wear on the contact parts accordingly, so that the service life of the annular guide bar 56 can be extended.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A drilling device for mechanical manufacturing, comprising a drilling machine body (1), wherein the drilling machine body (1) is provided with a lifting platform (2) and a clamping seat (3), characterized in that: Also included are: A drilling assembly (4) is installed on the lifting platform (2), and the drilling assembly (4) comprises a first motor (41) and a drill assembly (42) connected to each other, the drill assembly (42) comprises an outer cylinder (421) and an outer drill body (422), a middle drill body (423) and an inner drill body (424) which are arranged in the outer cylinder (421) and are concentrically arranged from the outside to the inside, the upper end of the outer wall of the outer drill body (422) is fixed to the lower end of the inner part of the outer cylinder (421), and a lifting adjustment assembly (425) is further arranged in the outer cylinder (421), and the lifting adjustment assembly (425) is used to make the middle drill body (423) and the inner drill body (424) independently lift and lower, so as to realize the independent use or coordinated use of the outer drill body (422), the middle drill body (423) and the inner drill body (424); A lateral deflection assembly (5) and a vertical deflection assembly (6), wherein the lateral deflection assembly (5) is rotatably arranged on a drilling machine body (1), and the vertical deflection assembly (6) is arranged on an upper end surface of the lateral deflection assembly (5). The clamping seat (3) is mounted on the vertical deflection assembly (6). The lateral deflection assembly (5) and the vertical deflection assembly (6) cooperate with each other to adjust the angle of the workpiece to be drilled when drilling an inclined hole.

2. The drilling device for mechanical manufacturing according to claim 1, characterized in that: The lifting and adjusting assembly (425) comprises a micro motor (4251) installed at the top end of the inner part of the outer cylinder (421); the bottom end of the micro motor (4251) is connected to a lead screw (4252); a lead screw nut seat (4253) is provided on the outside of the lead screw (4252); an outer convex plate (4254) is connected to the outer wall of the lead screw nut seat (4253); and the lower end surface of the outer convex plate (4254) is connected to the top end of the inner drill body (424).

3. The drilling device for mechanical manufacturing according to claim 2, characterized in that: The lifting and adjusting assembly (425) further comprises a first electric telescopic rod (4257) installed at the top end of the inner part of the outer cylinder (421); a connecting circular plate (4256) is installed at the bottom end of the first electric telescopic rod (4257); a plurality of push rods (4255) are connected to the lower end surface of the connecting circular plate (4256) in a circular array; the push rods (4255) penetrate the outer convex plate (4254), and the bottom end of the push rods (4255) is connected to the top end of the middle drill body (423).

4. The drilling device for mechanical manufacturing according to claim 1, characterized in that: The lateral deflection assembly (5) comprises an inner gear ring (51) and a second motor (52). A circular groove (101) is provided on the upper end surface of the drilling machine body (1). The inner gear ring (51) is rotatably arranged in the circular groove (101), and a gear (58) is meshedly connected to the inner ring of the inner gear ring (51). The bottom end of the gear (58) is connected to a connecting rod (55) that passes through the table of the drilling machine body (1). The bottom end of the connecting rod (55) is installed with a second bevel gear (54). The second motor (52) is installed inside the drilling machine body (1), and a first bevel gear (53) is installed at the output end of the second motor (52). The first bevel gear (53) is meshedly connected to the second bevel gear (54).

5. The drilling device for mechanical manufacturing according to claim 4, characterized in that: The vertical deflection assembly (6) comprises an arc-shaped support plate (62) and a fixed plate (61) arranged upper and lower, the arc-shaped support plate (62) being hinged to the fixed plate (61), the upper end surface of the inner gear ring (51) being integrally formed with a convex ring (57), and the fixed plate (61) being fixed to the top end of the convex ring (57).

6. The drilling device for mechanical manufacturing according to claim 5, characterized in that: Both ends of the upper end surface of the fixing plate (61) are integrally formed as inclined surfaces, and the inclined surfaces are gradually reduced from the middle of the upper end surface of the fixing plate (61) to both ends.

7. The drilling device for mechanical manufacturing according to claim 5, characterized in that: A hinge rod (67) is fixed in the middle of the lower end surface of the arc-shaped supporting plate (62), a hinge groove (66) is provided in the middle of the upper end surface of the fixing plate (61), and the hinge rod (67) is hinged to the hinge groove (66).

8. The drilling device for mechanical manufacturing according to claim 5, characterized in that: The vertical deflection assembly (6) further comprises a second electric telescopic rod (64), the top end of the second electric telescopic rod (64) being hinged to one end of the lower end surface of the arc-shaped support plate (62), the bottom end of the second electric telescopic rod (64) being hinged to an arc-shaped slide plate (63), an arc-shaped slide groove (103) being provided on the upper end surface of the drilling machine body (1) and located on the periphery of the circular groove (101), and the arc-shaped slide plate (63) being slidably matched with the arc-shaped slide groove (103).

9. The drilling device for mechanical manufacturing according to claim 8, characterized in that: A connecting strip (65) is connected between the upper end surface of the arc-shaped slide plate (63) and the outer wall of the convex ring (57).

10. The drilling device for mechanical manufacturing according to claim 4, characterized in that: An annular guide groove (102) is formed on the inner side wall of the circular groove (101), an annular guide bar (56) is fixed on the outer wall of the inner gear ring (51), and the annular guide bar (56) is slidably matched with the annular guide groove (102).

Images