A laser centering device for tightening a drill press

Abstract

The present application provides a drilling machine tightening auxiliary laser centering device. Including the sleeve ring connecting seat, the laser assembly, the sleeve ring, the external thread guide sleeve and the clamping assembly; the clamping assembly is used for clamping and fixing the drill bit; the sleeve ring is used for accommodating the clamping assembly; the sleeve ring is provided with internal threads at one end and a circular array of slotted openings at the other end; the external thread guide sleeve is provided with external threads and is screwed with the internal thread end of the sleeve ring, used for adjusting the clamping assembly to tighten the drill bit; the sleeve ring connecting seat is concentrically connected with the sleeve ring, including the ring body and the ring seat, the center lines of the ring body and the ring seat are coincident; the ring body is provided with a circular array of grooves corresponding to the slotted openings on the sleeve ring, and the grooves and the slotted openings jointly limit the clamping assembly; the laser assembly has a laser emitter, which is screwed with the screw hole on the mounting hole through the fixing screw, and is locked on the mounting hole of the ring seat; the laser emitter is concentric with the drill bit, and the center point and the center line of the drill bit are indicated by laser, and the center point and the center line of the drilling machine are marked with a marker pen.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mechanical drilling machine tooling, in particular to a drilling machine tightening auxiliary laser centering device. BACKGROUND

[0002] The shipbuilding field has complex construction, multiple piping systems, and complex work environment. In construction, a large number of pipes, blind plates, and tooling of various diameters and materials are processed and drilled, and before the drilling machine works, the workpiece needs to be clamped and the hole opening part needs to be adjusted to the center point position of the drilling machine.

[0003] However, the present application inventors found that the above-mentioned technology at least has the following technical problems in the process of implementing the technical solutions of the embodiments of the present application:

[0004] It is difficult to draw and mark the center point and center line of the drilling machine, and it is not easy to mark the center point of the drilling machine with a marker pen. If a center drill is used to pre-punch mark, a permanent concave point will be formed on the workpiece. Once the center drill pre-punch point needs to be adjusted, the concave point formed by the original workpiece will be a defect. If the new and old concave points are repeatedly punched, they cannot be erased, causing confusion and quality problems. At the same time, the center drill of the drilling machine can only punch the center point and cannot mark the center line. SUMMARY

[0005] In order to solve the problems existing in the prior art, the present application provides a drilling machine tightening auxiliary laser centering device to solve the problem of difficult marking of the center point and center line of the drilling machine. The device is connected concentrically by a sleeve ring and a sleeve ring connecting seat. An external thread guide sleeve is assembled on one side of the sleeve ring, and a laser assembly is assembled on one side of the sleeve ring connecting seat. A clamping assembly is accommodated between the sleeve ring and the sleeve ring connecting seat. The drill bit and the laser emitter are collinear. The center point / line is marked with a marker pen through a laser point / line, which is equivalent to the center point / line of the drilling machine. This improves work efficiency and avoids damage to the workpiece caused by traditional center drill secondary punching. The technical problem of difficult marking of the center point and center line of the drilling machine is solved.

[0006] The solution adopted by the embodiments of the present application to solve the technical problems is as follows:

[0007] A drilling machine tightening auxiliary laser centering device includes a sleeve ring connecting seat, a laser assembly, a sleeve ring, an external thread guide sleeve, and a clamping assembly.

[0008] The clamping assembly is used for clamping and fixing the drill bit; the sleeve ring is a hollow structure and is used for accommodating the clamping assembly; a female thread is arranged at one end of the sleeve ring, and a circular array of slotted openings is arranged at the other end, which is used for assembling and limiting the clamping assembly; the outer thread guide sleeve is provided with an outer thread and is screwed with the female thread end of the sleeve ring, which is used for adjusting the clamping assembly to fasten the drill bit; the sleeve ring connecting seat is concentrically connected with the sleeve ring and includes a ring body and a ring seat, the ring body is arranged at one end of the sleeve ring connecting seat, and the ring seat is arranged at the other end, and the center lines of the ring body and the ring seat are coaxial; a circular array of grooves is arranged on the ring body and corresponds to the slotted openings on the sleeve ring, the grooves and the slotted openings jointly limit the clamping assembly, and the clamping assembly is accommodated in the inner cavity of the ring body; a mounting hole is arranged on the ring seat, and the mounting hole is provided with a screw hole in the radial direction; the laser assembly has a laser emitter, which is screwed with the screw hole on the mounting hole through a fixing screw, and the laser emitter is locked on the mounting hole of the ring seat.

[0009] The drill bit is inserted into the outer thread guide sleeve, the sleeve ring and the sleeve ring connecting seat jointly limit the clamping assembly, and the outer thread guide sleeve adjusts the clamping assembly to clamp and center the drill bit; the laser emitter is concentric with the drill bit, and the center point and the center line of the drill bit are indicated by laser, and the center point and the center line of the drill bed are marked by a marker pen according to the laser indication.

[0010] In order to further solve the technical problems to be solved in the embodiments of the present application, the clamping assembly provided by the embodiments of the present application comprises a bearing, an inclined iron, a tension spring fixing pin and a tension spring.

[0011] The bearing comprises a plane bearing, a short straight line nylon row needle bearing and a long straight line nylon row needle bearing, and the inclined iron comprises an inner inclined iron and an outer inclined iron; the inner inclined iron is a trapezoidal structure block, an inner inclined iron inclined surface is arranged on the inclined part of the inner inclined iron, an inner inclined iron vertical surface is arranged on the vertical part of the inner inclined iron, and an inner inclined iron pin hole penetrating through the inner inclined iron is arranged in the inner inclined iron; the outer inclined iron is also a trapezoidal structure block, an outer inclined iron inclined surface is arranged on the outer inclined iron, and an outer inclined iron pin hole is arranged in the outer inclined iron.

[0012] The outer inclined iron is stacked on the inner inclined iron, the inner inclined iron inclined surface of the inner inclined iron is aligned with the outer inclined iron inclined surface of the outer inclined iron, the inner inclined iron is in contact with the drill bit, and a pawl clamping the drill bit is formed, and the clamping assembly is coaxial with the center of the drill bit.

[0013] The side end of the outer skewer is embedded in the slotted opening of the collar, and the other end is embedded in the groove of the collar connecting seat, so that the outer skewer is fixed; a long straight nylon row needle bearing is arranged between the outer skewer inclined surface of the outer skewer and the inner skewer inclined surface of the inner skewer, which is used for sliding the inner skewer along the outer skewer; a tension spring fixing pin is respectively assembled in the outer skewer pin hole and the inner skewer pin hole of the outer skewer, the tension spring fixing pin comprises a pin shaft and a groove, the pin shaft transversely penetrates the outer skewer pin hole or the inner skewer pin hole, and the groove is arranged at the outer end of the pin shaft; the hooks at both ends of the tension spring are clamped into the groove, so that the inner skewer can slide along the outer skewer; a short straight nylon row needle bearing is glued on the inner skewer vertical surface of the inner skewer, which is used for bearing the thrust of the outer threaded guide sleeve, and a plane bearing is arranged adjacent to the outer side of the short straight nylon row needle bearing, which is used for transmitting the load of the outer threaded guide sleeve.

[0014] Further, the three pawls of the inner skewer and the outer skewer are evenly distributed around the drill bit, so that the clamping assembly is collinear with the center of the drill bit.

[0015] Further, the outer threaded guide sleeve comprises a threaded sleeve, a hollow shaft and a handle, the threaded sleeve is in a disc structure, the threaded sleeve is provided with external threads, and the threaded sleeve is provided with a through hole in the middle; the handle is arranged on the outer side of the threaded sleeve, which is used for rotating the outer threaded guide sleeve to rotate in or out; the hollow shaft is arranged on the inner side of the threaded sleeve, which is used for assembling the plane bearing, the hollow shaft is provided with a limiting hole, the limiting hole is matched with the drill bit, and the drill bit is inserted and assembled.

[0016] Further, the laser assembly comprises a laser emitter, a spring, a laser emitter switch contact and a fixing screw; the laser emitter is a cylindrical linear or cross-shaped laser emitter, the laser emitter switch contact is a stepped shaft, the stepped shaft is provided with a limiting shaft at one end and a mandrel at the other end, and a shaft shoulder is arranged between the limiting shaft and the mandrel; the limiting shaft end of the laser emitter switch contact is connected with the mounting hole of the collar connecting seat in a concentric manner, the shaft shoulder plane is in contact with the surface of the mounting hole, the spring is assembled on the mandrel, and the laser emitter is locked and fixed by using the fixing screw.

[0017] The technical scheme provided in the embodiment of the application has at least the following technical effects or advantages:

[0018] 1. The technical means adopted by the embodiment of the present application that the collar is concentrically connected with the collar connecting seat, the outer threaded guide sleeve is assembled on one side of the collar, the laser assembly is assembled on one side of the collar connecting seat, and the clamping assembly is accommodated between the collar and the collar connecting seat, the drill inserted into the collar from the outer threaded guide sleeve is coaxial with the center of the laser emitter assembled on the center of the collar connecting seat, and the laser point / line emitted by the laser emitter is the center point / line of the drill, effectively solving the technical problem that the center point and center line of the drill press are not easy to mark in the prior art, and the center point / line marked by the laser point / line is equivalent to the center point / line of the drill press, thereby achieving the technical effects of improving work efficiency and avoiding damage to the workpiece caused by the traditional center drill twice.

[0019] 2. The technical means adopted by the embodiment of the present application that the outer inclined iron is embedded in the slotted opening 32 of the collar and the groove of the collar connecting seat, effectively solving the technical problem that the center point and center line of the drill press are not easy to mark in the prior art, and thereby achieving the technical effects that the outer inclined iron is fixed relative to the collar and the collar connecting seat, and a fixed point of the clamping assembly is formed.

[0020] 3. The technical means adopted by the embodiment of the present application that the inner inclined iron and the outer inclined iron are respectively provided with an inner inclined iron pin hole and an outer inclined iron pin hole, a tension spring fixing pin is inserted into the inner inclined iron pin hole and the outer inclined iron pin hole, the inner inclined iron and the outer inclined iron are connected through the tension spring, a linkage structure is formed, a movable point of the clamping assembly is formed, the technical problem that the center point and center line of the drill press are not easy to mark in the prior art is effectively solved, the inner inclined iron slides relative to the outer inclined iron, and thereby achieving the technical effect of radial adjustment of the clamping assembly.

[0021] 4. The technical means adopted by the embodiment of the present application that a long straight nylon row needle bearing is arranged between the inner inclined iron and the outer inclined iron, when the inner inclined iron and the outer inclined iron slide along the outer inclined iron, the inner inclined iron and the outer inclined iron are in rolling friction, the technical problem that the center point and center line of the drill press are not easy to mark in the prior art is effectively solved, the resistance is small and the wear is not easy, and thereby achieving the technical effect of facilitating adjustment of the clamping assembly.

[0022] 5. The technical means adopted by the embodiment of the present application that the outer thread is arranged on the threaded sleeve, the handle is arranged on the outer side of the threaded sleeve, and the hollow shaft is arranged on the inner side of the threaded sleeve, the planar bearing is assembled on the hollow shaft, the handle is rotated, the outer threaded guide sleeve is screwed into the collar, the hollow shaft pushes the clamping assembly to adjust radially, the technical problem that the center point and center line of the drill press are not easy to mark in the prior art is effectively solved, the drill passing through the through hole is locked and fixed, and thereby achieving the technical effect that the outer threaded guide sleeve is concentric with the drill.

[0023] 6. The technical means that the laser emitter switch contact adopts the stepped shaft, the limiting shaft is arranged at one end of the laser emitter switch contact, the core shaft is arranged at the other end, the shaft shoulder is arranged between the limiting shaft and the core shaft, the limiting shaft end of the laser emitter switch contact is connected with the mounting hole of the sleeve connecting seat concentrically, effectively solves the technical problem that the center point and the center line of the drilling machine are not easy to mark in the prior art, and further realizes the technical effect that the laser point / line emitted by the laser emitter is the center point / line of the drill bit.

[0024] It is suitable to be applied as a drilling machine tightening auxiliary laser centering device. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0026] Figure 1 It is a southeast isometric view of the embodiment;

[0027] Figure 2 It is a northwest isometric view of the embodiment;

[0028] Figure 3 It is a southeast isometric half-section view of the embodiment;

[0029] Figure 4 It is a southwest isometric half-section view of the embodiment;

[0030] Figure 5 It is a structure explosion schematic view of the embodiment;

[0031] Figure 6 It is a front view of the embodiment;

[0032] Figure 7 It is a front sectional view of the embodiment;

[0033] Figure 8 It is a southeast isometric view of the sleeve connecting seat;

[0034] Figure 9 It is a southwest isometric view of the sleeve connecting seat;

[0035] Figure 10 It is a southeast isometric view of the sleeve;

[0036] Figure 11 It is a northwest isometric view of the sleeve;

[0037] Figure 12South east isometric view of the external thread guide bushing;

[0038] Figure 13 North west isometric view of the external thread guide bushing;

[0039] Figure 14 South east isometric view of the laser emitter switch contact;

[0040] Figure 15 South west isometric view of the laser emitter switch contact;

[0041] Figure 16 Schematic view of the lower inclined iron structure;

[0042] Figure 17 Schematic view of the upper inclined iron structure;

[0043] Figure 18 Tension spring fixing pin.

[0044] In the figure:

[0045] 0. Drill bit;

[0046] 1. Collar connecting seat,

[0047] 11. Ring body,

[0048] 111. Groove,

[0049] 12. Ring seat,

[0050] 121. Mounting hole,

[0051] 122. Screw hole;

[0052] 2. Laser assembly,

[0053] 21. Laser emitter,

[0054] 22. Spring,

[0055] 23. Laser emitter switch contact,

[0056] 231. Limiting shaft,

[0057] 232. Shaft shoulder,

[0058] 233. Mandrel,

[0059] 24. Fixing screw;

[0060] 3. Collar,

[0061] 31. Internal thread,

[0062] 32. Slotted opening;

[0063] 4. External thread guide bushing,

[0064] 41. threaded sleeve,

[0065] 411. through hole,

[0066] 42. hollow shaft,

[0067] 421. limiting hole,

[0068] 43. handle;

[0069] 5. bearing,

[0070] 51. plain bearing,

[0071] 52. short straight nylon cage needle bearing,

[0072] 53. long straight nylon cage needle bearing;

[0073] 6. inner inclined iron,

[0074] 61. inner inclined iron inclined surface,

[0075] 62. inner inclined iron pin hole,

[0076] 63. inner inclined iron vertical surface;

[0077] 7. outer inclined iron,

[0078] 71. outer inclined iron inclined surface,

[0079] 72. outer inclined iron pin hole;

[0080] 8. tension spring fixing pin,

[0081] 81. pin shaft,

[0082] 82. groove;

[0083] 9. tension spring. DETAILED DESCRIPTION

[0084] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0085] As shown in the figure, a drilling machine tightening auxiliary laser centering device comprises a collar connecting seat 1, a laser assembly 2, a collar 3, an external thread guide sleeve 4 and a clamping assembly;

[0086] The clamping assembly is used for clamping and fixing the drill bit 0;

[0087] The collar 3 is a hollow structure and is used for accommodating the clamping assembly. An inner thread 31 is arranged at one end of the collar 3, and a circular array of slotted openings 32 is arranged at the other end, which is used for assembling and limiting the clamping assembly;

[0088] The external thread guide sleeve 4 is provided with an external thread and is screwed with the inner thread 31 of the collar 3, which is used for adjusting the clamping assembly to fasten the drill bit 0;

[0089] The collar connecting seat 1 is concentrically connected with the collar 3 and comprises a ring body 11 and a ring seat 12. The ring body 11 is arranged at one end of the collar connecting seat 1, and the ring seat 12 is arranged at the other end. The center lines of the ring body 11 and the ring seat 12 are coaxial. A circular array of grooves 111 corresponding to the slotted openings 32 of the collar 3 is arranged on the ring body 11. The grooves 111 and the slotted openings 32 jointly limit the clamping assembly, and the clamping assembly is accommodated in the inner cavity of the ring body 11. Mounting holes 121 are arranged on the ring seat 12, and screw holes 122 are radially arranged on the mounting holes 121. In this embodiment, the grooves 111 and the slotted openings 32 are all three uniformly arranged;

[0090] The laser assembly 2 has a laser emitter 21, which is screwed with the screw holes 122 on the mounting holes 121 through fixing screws 24, so as to lock the laser emitter 21 on the mounting holes 121 of the ring seat 12;

[0091] The drill bit 0 is inserted into the external thread guide sleeve 4, the collar 3 and the collar connecting seat 1 jointly limit the clamping assembly, and the external thread guide sleeve 4 is adjusted to clamp and center the drill bit 0 through the clamping assembly. The laser emitter 21 is concentric with the drill bit 0, and then the center point and the center line of the drill bit 0 are indicated by laser, so that the center point and the center line of the drilling machine are directly marked by a marker pen according to the laser indication.

[0092] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0093] Since the collar 3 and the collar connecting seat 1 are concentrically connected, the external thread guide sleeve 4 is assembled on one side of the collar 3, the laser assembly 2 is assembled on one side of the collar connecting seat 1, and the clamping assembly is accommodated between the collar 3 and the collar connecting seat 1. Therefore, the drill bit 0 inserted into the collar 3 through the external thread guide sleeve 4 is coaxial with the laser emitter 21 assembled on the center of the collar connecting seat 1. The laser point / line emitted by the laser emitter 21 is the center point / line of the drill bit 0. Then, the center point / line is marked by a marker pen through the laser point / line, which is equivalent to the center point / line of the drilling machine. Therefore, the working efficiency is improved, and the damage to the workpiece caused by the traditional center drilling and secondary dotting is avoided.

[0094] In order to ensure the stability of the structure of the embodiment, the clamping assembly comprises bearings 5, inclined iron, tension spring fixing pin 8 and tension spring 9;

[0095] The bearing 5 comprises a planar bearing 51, a short straight nylon row needle bearing 52 and a long straight nylon row needle bearing 53, and the inclined iron comprises inner inclined iron 6 and outer inclined iron 7; the inner inclined iron 6 is a trapezoidal structure block, the inner inclined iron 6 is provided with an inner inclined iron inclined surface 61 on the inclined part, the inner inclined iron 6 is provided with an inner inclined iron vertical surface 63 on the vertical part, and the inner inclined iron 6 is provided with an inner inclined iron pin hole 62 penetrating through the inner inclined iron 6; the outer inclined iron 7 is also a trapezoidal structure block, and the outer inclined iron 7 is provided with an outer inclined iron inclined surface 71, and the outer inclined iron 7 is provided with an outer inclined iron pin hole 72;

[0096] The outer inclined iron 7 is stacked on the inner inclined iron 6, the inner inclined iron inclined surface 61 of the inner inclined iron 6 and the outer inclined iron inclined surface 71 of the outer inclined iron 7 are aligned and assembled together, the inner inclined iron 6 is in contact with the drill bit 0, and the three pawls jointly clamp the drill bit 0 in the embodiment, so that the clamping assembly is coaxial with the center of the drill bit 0;

[0097] One end of the side surface of the outer inclined iron 7 is embedded in the slotted opening 32 of the collar 3, and the other end is embedded in the groove 111 of the collar connecting seat 1, so that the outer inclined iron 7 is fixed;

[0098] A long straight nylon row needle bearing 53 is arranged between the outer inclined iron inclined surface 71 of the outer inclined iron 7 and the inner inclined iron inclined surface 61 of the inner inclined iron 6, which is used for sliding the inner inclined iron 6 along the outer inclined iron 7;

[0099] The tension spring fixing pin 8 is respectively assembled in the outer inclined iron pin hole 72 of the outer inclined iron 7 and the inner inclined iron pin hole 62 of the inner inclined iron 6, the tension spring fixing pin 8 comprises a pin shaft 81 and a groove 82, the pin shaft 81 transversely penetrates the outer inclined iron pin hole 72 or the inner inclined iron pin hole 62, the groove 82 is arranged at the outer end of the pin shaft 81, the hooks at both ends of the tension spring 9 are clamped into the groove 82, so that the inner inclined iron 6 can slide along the outer inclined iron 7, the clamping assembly is adjusted, and then the drill bit 0 is clamped and fixed;

[0100] The short straight nylon row needle bearing 52 is glued on the inner inclined iron vertical surface 63 of the inner inclined iron 6, which is used for bearing the thrust of the outer threaded guide sleeve 4, and the outer side of the short straight nylon row needle bearing 52 is provided with the planar bearing 51 adjacent to it, which is used for ensuring the free rotation and transmitting the load of the outer threaded guide sleeve 4.

[0101] The technical solutions in the above embodiments of the application have at least the following technical effects or advantages:

[0102] Since the outer inclined iron 7 is embedded in the slotted opening 32 of the collar 3 and the groove 111 of the collar connecting seat 1, the outer inclined iron 7 is fixed relative to the collar 3 and the collar connecting seat 1, and a fixed point of the clamping assembly is formed.

[0103] Because the inner inclined iron 6 and the outer inclined iron 7 are respectively provided with the inner inclined iron pin hole 62 and the outer inclined iron pin hole 72, the tension spring fixing pin 8 is inserted in the inner inclined iron pin hole 62 and the outer inclined iron pin hole 72, the inner inclined iron 6 and the outer inclined iron 7 are connected through the tension spring 9, a linkage structure is formed, an active point of the clamping assembly is formed, the inner inclined iron 6 slides relative to the outer inclined iron 7, and radial adjustment of the clamping assembly is realized.

[0104] Because the long straight nylon row needle bearing 53 is arranged between the inner inclined iron 6 and the outer inclined iron 7, when the inner inclined iron 6 and the outer inclined iron 7 slide along the outer inclined iron 7, the inner inclined iron 6 and the outer inclined iron 7 are in rolling friction, the resistance is small and not easy to wear, and adjustment of the clamping assembly is facilitated.

[0105] In order to optimize the structure of the embodiment, the outer threaded guide sleeve 4 is a stepped cover, including a threaded sleeve 41, a hollow shaft 42 and a handle 43, the threaded sleeve 41 is disc-shaped, is provided with external threads on the threaded sleeve 41, a through hole 411 is arranged in the middle of the threaded sleeve 41 and used for the drill bit 0 to pass through, the handle 43 is arranged outside the threaded sleeve 41 and used for rotating the outer threaded guide sleeve 4, the outer threaded guide sleeve 4 is screwed in or out, and the hollow shaft 42 is arranged inside the threaded sleeve 41 and used for assembling the plane bearing 51, the hollow shaft 42 is provided with a limiting hole 421 matched with the drill bit 0 and used for inserting the drill bit 0.

[0106] The technical scheme in the embodiment of the application has at least the following technical effects or advantages:

[0107] Because the threaded sleeve 41 is provided with external threads, the handle 43 is arranged outside the threaded sleeve 41, and the hollow shaft 42 is arranged inside the threaded sleeve 41, the plane bearing 51 is assembled on the hollow shaft 42, the handle 43 is rotated, the outer threaded guide sleeve 4 is screwed into the sleeve ring 3, the hollow shaft 42 pushes the clamping assembly to be radially adjusted, the drill bit 0 passing through the through hole 411 is locked and fixed, and the outer threaded guide sleeve 4 is concentric with the drill bit 0.

[0108] In order to optimize the structure of the embodiment, the laser assembly 2 comprises a laser emitter 21, a spring 22, a laser emitter 21 switch contact 23 and a fixing screw 24; the laser emitter 21 is a cylindrical linear or cross-shaped laser emitter 21, the laser emitter 21 switch contact 23 is a stepped shaft, a limiting shaft 231 is arranged at one end of the laser emitter 21 switch contact 23, a mandrel 233 is arranged at the other end, and a shaft shoulder 232 is arranged between the limiting shaft 231 and the mandrel 233; the limiting shaft 231 end of the laser emitter 21 switch contact 23 is connected concentrically with the mounting hole 121 of the collar connecting seat 1, the shaft shoulder 232 plane is in contact with the surface of the mounting hole 121, the spring 22 is assembled on the mandrel 233, and the laser emitter 21 is finally inserted into the mounting hole 121 of the collar connecting seat 1 after the laser emitter 21 switch contact 23 and the spring 22 are sequentially inserted into the mounting hole 121 of the collar connecting seat 1, and the fixing screw 24 is used to lock and fix the laser emitter 21.

[0109] The technical scheme in the embodiment has at least the following technical effects or advantages:

[0110] Since the laser emitter 21 switch contact 23 is a stepped shaft, a limiting shaft 231 is arranged at one end of the laser emitter 21 switch contact 23, a mandrel 233 is arranged at the other end, and a shaft shoulder 232 is arranged between the limiting shaft 231 and the mandrel 233; therefore, the limiting shaft 231 end of the laser emitter 21 switch contact 23 is connected concentrically with the mounting hole 121 of the collar connecting seat 1, and the laser point / line emitted by the laser emitter 21 is the center point / line of the drill bit 0.

[0111] The working principle of the embodiment is as follows:

[0112] The collar 3 is fixed, the hollow shaft 42 pushes the plane bearing 51, the short straight nylon row needle bearing 52 and the inner inclined iron 6 to move axially during the rotation of the external thread guide sleeve 4; since the outer inclined iron 7 is fixed, the long straight nylon row needle bearing 53 is arranged between the outer inclined iron 7 and the inner inclined iron 6, the inner inclined iron inclined surface 61 of the inner inclined iron 6 slides relative to the outer inclined iron inclined surface 71 of the outer inclined iron 7, and continuously pushes the inner inclined iron 6 to move radially to the drill bit 0, until the drill bit 0 is clamped and locked; since all movements are synchronous, the center of the drill bit 0 coincides with the center of the entire device at this time, that is, the laser point / line emitted by the laser emitter 21 is the center point / line of the drill bit 0, so that the laser centering is realized.

[0113] It should be noted that the contents not described in detail in the specification all belong to the prior art known by those skilled in the art, and the model parameters of the laser emitter 21 are not specifically limited and can be determined by using conventional equipment; in the technical scheme, the electric control elements not mentioned belong to the prior art, and therefore are not shown in the drawings and will not be described herein.

[0114] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A laser centering device for tightening a drilling machine, characterized by: include: A clamping assembly, the clamping assembly being used to clamp and fix the drill bit (0); A collar (3) having a hollow structure for receiving the clamping assembly; an internal thread (31) is provided at one end of the collar (3), and a circular array of notches (32) is provided at the other end for assembling the clamping assembly and limiting the position; An externally threaded guide sleeve (4), the externally threaded guide sleeve (4) being provided with an external thread and being threadedly connected to the internally threaded end (31) of the collar (3), and being used for adjusting the clamping assembly to tighten the drill bit (0); A collar connecting seat (1), wherein the collar connecting seat (1) is concentrically connected to the collar (3), and comprises a ring body (11) and a ring seat (12), wherein the ring body (11) is provided at one end of the collar connecting seat (1), and the ring seat (12) is provided at the other end, wherein the centers of the ring body (11) and the ring seat (12) are collinear; a groove (111) in a circular ring array and corresponding to the notch (32) on the collar (3) is provided on the collar body (11), wherein the groove (111) and the notch (32) are combined to limit the clamping assembly, and the clamping assembly is received in the inner cavity of the collar body (11); a mounting hole (121) is provided on the ring seat (12), and a screw hole (122) is radially provided in the mounting hole (121); and A laser assembly (2), the laser assembly (2) having a laser emitter (21), the laser emitter (21) being locked on the mounting hole (121) of the ring seat (12) by screwing a fixing screw (24) into the screw hole (122) on the mounting hole (121); The drill bit (0) is inserted into the external thread guide sleeve (4), the collar (3) and the collar connector (1) are used to limit the clamping assembly, and the external thread guide sleeve (4) is adjusted to clamp and center the drill bit (0) through the clamping assembly; the laser emitter (21) is concentric with the drill bit (0), and the center point and center line of the drill bit (0) are indicated by laser, and the center point and center line of the drilling machine are marked with a marker according to the laser indication.

2. The laser centering device for drilling machine tightening according to claim 1, characterized in that: The clamping assembly comprises a bearing (5), an inclined iron, a tension spring fixing pin (8) and a tension spring (9); The bearing (5) includes a plane bearing (51), a short linear nylon row needle roller bearing (52) and a long linear nylon row needle roller bearing (53), and the inclined iron includes an inner inclined iron (6) and an outer inclined iron (7); the inner inclined iron (6) is a trapezoidal structural block, an inner inclined iron inclined surface (61) is provided on the inclined portion of the inner inclined iron (6), an inner inclined iron vertical surface (63) is provided on the vertical portion of the inner inclined iron (6), and inner inclined iron pin holes (62) are arranged through the inner inclined iron (6); the outer inclined iron (7) is also a trapezoidal structural block, an outer inclined iron inclined surface (71) is provided on the outer inclined iron (7), and outer inclined iron pin holes (72) are arranged in the outer inclined iron (7); wherein the outer bevel iron (7) is stacked on the inner bevel iron (6), the inner bevel iron inclined surface (61) of the inner bevel iron (6) and the outer bevel iron inclined surface (71) of the outer bevel iron (7) of the outer bevel iron (7) are aligned and assembled together, the inner bevel iron (6) contacts the drill bit (0) to form a ratchet for clamping the drill bit (0), and the clamping assembly is collinear with the center of the drill bit (0); One end of the side surface of the outer bevel iron (7) is embedded in the slotted opening (32) of the collar (3), and the other end is embedded in the groove (111) of the collar connecting seat (1), so that the outer bevel iron (7) is fixed; The long straight nylon row needle roller bearing (53) is provided between the outer bevel iron inclined surface (71) of the outer bevel iron (7) and the inner bevel iron inclined surface (61) of the inner bevel iron (6) for the inner bevel iron (6) to slide along the outer bevel iron (7); A tension spring fixing pin (8) is respectively installed in the outer bevel iron pin hole (72) of the outer bevel iron (7) and the inner bevel iron pin hole (62) of the inner bevel iron (6). The tension spring fixing pin (8) includes a pin shaft (81) and a groove (82). The pin shaft (81) passes through the outer bevel iron pin hole (72) or the inner bevel iron pin hole (62). The groove (82) is provided at the outer end of the pin shaft (81). The hooks at both ends of the tension spring (9) are inserted into the groove (82), so that the inner bevel iron (6) can slide along the outer bevel iron (7). The short linear nylon row needle roller bearing (52) is glued on the inner inclined iron vertical surface (63) of the inner inclined iron (6) to bear the thrust of the external thread guide sleeve (4); the plane bearing (51) is provided adjacent to the outer side of the short linear nylon row needle roller bearing (52) to transmit the load of the external thread guide sleeve (4).

3. The laser centering device for drilling machine tightening according to claim 2, characterized in that: There are three ratchets in total that are linked to the inner bevel iron (6) and the outer bevel iron (7), and are evenly distributed around the drill bit (0), so that the clamping assembly and the center of the drill bit (0) are collinear.

4. The laser centering device for assisting tightening of a drilling machine according to claim 2, characterized in that: The external thread guide sleeve (4) comprises a thread sleeve (41), a hollow shaft (42) and a handle (43); the thread sleeve (41) is a disc structure, and is provided with an external thread on the thread sleeve (41). A through hole (411) is provided in the middle of the thread sleeve (41); the handle (43) is provided on the outside of the thread sleeve (41) for rotating the external thread guide sleeve (4) and screwing the external thread guide sleeve (4) in or out; the hollow shaft (42) is provided on the inside of the thread sleeve (41) for assembling the plane bearing (51), and a limiting hole (421) is provided on the hollow shaft (42), and the limiting hole (421) matches the drill bit (0) and is used for inserting the drill bit (0).

5. The laser centering device for assisting tightening of a drilling machine according to claim 4, characterized in that: The laser assembly (2) includes a laser emitter (21), a spring (22), a laser emitter switch contact (23) and a fixing screw (24); the laser emitter (21) is a cylindrical straight-line or cross-shaped laser emitter (21); the laser emitter switch contact (23) is a stepped shaft; a limit shaft (231) is provided at one end of the laser emitter switch contact (23) and a core shaft (233) is provided at the other end; a shaft shoulder (232) is provided between the limit shaft (231) and the core shaft (233); the limit shaft (231) end of the laser emitter switch contact (23) is concentrically connected to the mounting hole (121) of the collar connection seat (1); the plane of the shaft shoulder (232) contacts the surface of the mounting hole (121); the spring (22) is assembled on the core shaft (233); and the laser emitter (21) is locked and fixed using the fixing screw (24).

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