Drilling machine screwing auxiliary laser centering device

Abstract

The invention provides a drilling machine screwing auxiliary laser centering device. Comprising a lantern ring connecting base, a laser assembly, a lantern ring, an external thread guide sleeve and a clamping assembly. The clamping assembly is used for clamping and fixing a drill bit; the lantern ring is used for accommodating the clamping assembly; one end of the lantern ring is provided with internal threads, and the other end of the lantern ring is provided with open notches in a ring array; the external thread guide sleeve is provided with external threads, is in threaded connection with the internal thread end of the lantern ring and is used for adjusting the clamping assembly to fasten the drill bit. The lantern ring connecting seat is concentrically connected with the lantern ring and comprises a ring body and a ring seat, and the centers of the ring body and the ring seat are collinear; the ring body is provided with a circular ring array and grooves corresponding to the notches in the lantern ring, and the grooves and the notches are combined to limit the clamping assembly. The laser assembly is provided with a laser transmitter, and the laser transmitter is in threaded connection with a screw hole in the mounting hole through a fixing screw and is locked on the mounting hole of the ring seat. The laser transmitter is concentric with the drill bit, the center point and the center line of the drill bit are indicated through laser, and the center point and the center line of the drilling machine are marked through the marking pen.

Description

Technical Field

[0001] The invention relates to a drilling machine tool in the mechanical field, and in particular to a drilling machine tightening auxiliary laser centering device. Background Art

[0002] The shipbuilding industry is complex in terms of construction, diverse piping systems, and complex operating environments. The construction involves the processing and drilling of pipes, blind plates, and tooling of various calibers and materials, and the number of these is large. Before the drilling machine works, it is necessary to clamp the workpiece and adjust the opening to the center of the drilling machine.

[0003] However, the inventors of this application found that the above technology has at least the following technical problems in the process of implementing the technical solution of the invention in the embodiment of this application: It is difficult to mark the center point and center line of a drill press. It is not easy to mark the point marked by a marker pen and the center point of the drill press. If the center drill of a drill press is used to pre-drill a hole, a permanent concave point needs to be formed on the workpiece. Once the pre-drilling point of the center drill needs to be adjusted, the concave point caused by the original workpiece is a defect. If the concave points are repeatedly drilled, the new and old concave points cannot be erased, which causes confusion and easily leads to concave defects and quality problems. At the same time, the center drill of a drill press can only hit the center point and cannot mark the center line. Summary of the invention

[0004] In order to solve the deficiencies in the prior art and address the problem that the center point and center line of a drilling machine are difficult to mark, the embodiment of the present application provides a laser centering device for tightening a drilling machine. The device is concentrically connected to a collar and a collar connection seat through a collar, an external threaded guide sleeve is assembled on one side of the collar, a laser assembly is assembled on one side of the collar connection seat, a clamping assembly is stored between the collar and the collar connection seat, the drill bit is colinear with the center of the laser transmitter, and the center point / line marked with a marker pen through the laser point / line is equivalent to the center point / line of the drilling machine, which improves work efficiency and avoids damage to the workpiece caused by secondary dotting of the traditional center drill, solving the technical problem that the center point and center line of the drilling machine are difficult to mark.

[0005] The solution adopted by the embodiment of the present application to solve the technical problem is: A drilling machine tightening auxiliary laser centering device comprises a collar connection seat, a laser assembly, a collar, an external thread guide sleeve and a clamping assembly; The clamping assembly is used to clamp and fix the drill bit; the collar is a hollow structure for accommodating the clamping assembly; an internal thread is provided at one end of the collar, and a notch of a circular ring array is provided at the other end for assembling the clamping assembly and limiting the position; the external thread guide sleeve is provided with an external thread, which is screwed with the internal thread end of the collar, and is used to adjust the clamping assembly to tighten the drill bit; the collar connecting seat is concentrically connected to the collar, and comprises a ring body and a ring seat, a ring body is provided at one end of the collar connecting seat, and a ring seat is provided at the other end, and the centers of the ring body and the ring seat are colinear; a groove of a circular ring array corresponding to the notch on the collar is provided on the ring body, and the groove and the notch are combined to limit the position of the clamping assembly, and the clamping assembly is received in the inner cavity of the ring body; a mounting hole is provided on the ring seat, and a screw hole is radially provided with the mounting hole; the laser assembly has a laser emitter, and the laser emitter is locked on the mounting hole of the ring seat by screwing the fixing screw with the screw hole on the mounting hole; Among them, the drill bit is inserted into the external threaded guide sleeve, the ring and the ring connecting seat jointly limit the clamping assembly, and the external threaded guide sleeve is adjusted to clamp and center the drill bit through the clamping assembly; the laser transmitter is concentric with the drill bit, and the center point and center line of the drill bit are indicated by laser, and the center point and center line of the drilling machine are marked with a marker pen according to the laser indication.

[0006] In order to further solve the technical problem to be solved by the embodiment of the present application, in the clamping assembly provided in the embodiment of the present application, the clamping assembly includes a bearing, an inclined iron, a tension spring fixing pin and a tension spring; The bearings include plane bearings, short linear nylon row needle roller bearings and long linear nylon row needle roller bearings. The inclined iron includes an inner inclined iron and an outer inclined iron. The inner inclined iron is a trapezoidal structural block, an inner inclined iron inclined surface is provided at the inclined portion of the inner inclined iron, an inner inclined iron vertical surface is provided at the vertical portion of the inner inclined iron, and inner inclined iron pin holes are arranged in the inner inclined iron. The outer inclined iron is also a trapezoidal structural block, an outer inclined iron inclined surface is provided on the outer inclined iron, and outer inclined iron pin holes are arranged in the outer inclined iron. The outer bevel iron is stacked on the inner bevel iron, the inner bevel iron inclined surface of the inner bevel iron is aligned with the outer bevel iron inclined surface of the outer bevel iron and assembled together, the inner bevel iron contacts the drill bit to form a ratchet for clamping the drill bit, and the clamping assembly is in line with the center of the drill bit; One end of the side surface of the outer bevel iron is embedded in the slotted opening of the ring, and the other end is embedded in the groove of the ring connecting seat, so that the outer bevel iron is fixed; a long straight nylon row needle roller bearing is arranged between the outer bevel iron inclined surface of the outer bevel iron and the inner bevel iron inclined surface of the inner bevel iron, which is used for the inner bevel iron to slide along the outer bevel iron; a tension spring fixing pin is respectively installed in the outer bevel iron pin hole of the outer bevel iron and the inner bevel iron pin hole of the inner bevel iron, and the tension spring fixing pin includes a pin shaft and a groove, and the pin shaft crosses the outer bevel iron pin hole or the inner bevel iron pin hole, and a groove is arranged at the outer end of the pin shaft, and the hooks at both ends of the tension spring are stuck in the groove, so that the inner bevel iron can slide along the outer bevel iron; a short straight nylon row needle roller bearing is glued on the inner bevel iron vertical surface of the inner bevel iron, which is used to bear the thrust of the external threaded guide sleeve, and a flat bearing is arranged adjacent to the outside of the short straight nylon row needle roller bearing to transmit the load of the external threaded guide sleeve.

[0007] Furthermore, there are three ratchets that are linked to the inner bevel iron and the outer bevel iron, and are evenly distributed around the drill bit, so that the clamping assembly is in line with the center of the drill bit.

[0008] Furthermore, the external thread guide sleeve includes a thread sleeve, a hollow shaft and a handle. The thread sleeve is a disc structure, and is provided with an external thread on the thread sleeve. A through hole is provided in the middle of the thread sleeve. A handle is provided on the outside of the thread sleeve for rotating the external thread guide sleeve to screw the external thread guide sleeve in or out. A hollow shaft is provided on the inside of the thread sleeve for assembling a plane bearing. A limit hole is provided on the hollow shaft, and the limit hole matches the drill bit for inserting the drill bit.

[0009] Furthermore, the laser assembly includes a laser emitter, a spring, a laser emitter switch contact and a fixing screw; the laser emitter is a cylindrical straight-line or cross-shaped laser emitter, the laser emitter switch contact is a stepped shaft, a limit shaft is provided at one end of the laser emitter switch contact, a core shaft is provided at the other end, and a shoulder is provided between the limit shaft and the core shaft; the limit shaft end of the laser emitter switch contact is concentrically connected to the mounting hole of the ring connecting seat, the shoulder plane contacts the mounting hole surface, the spring is assembled on the core shaft, and the laser emitter is locked and fixed with a fixing screw.

[0010] Positive effects: The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages: 1. Since the embodiment of the present application adopts a technical means in which the collar and the collar connecting seat are concentrically connected, an externally threaded guide sleeve is installed on one side of the collar, a laser assembly is installed on one side of the collar connecting seat, and the clamping assembly is accommodated between the collar and the collar connecting seat, the drill bit inserted into the collar by the externally threaded guide sleeve is colinear with the center of the laser emitter installed 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 bit, which effectively solves the technical problem that the center point and center line of the drilling machine in the prior art are difficult to mark. The center point / line marked by a marker pen through the laser point / line is equivalent to the center point / line of the drilling machine, thereby achieving the technical effect of improving work efficiency and avoiding damage to the workpiece caused by secondary dot-marking of the traditional center drill.

[0011] 2. Since the embodiment of the present application adopts the technical means of embedding the external bevel iron in the notch 32 of the ring and the groove of the ring connecting seat, the technical problem that the center point and center line of the drilling machine are difficult to mark in the prior art is effectively solved, thereby achieving the technical effect of fixing the external bevel iron relative to the ring and the ring connecting seat to form a fixed action point of the clamping assembly.

[0012] 3. Since the embodiment of the present application adopts the technical means that the inner bevel iron and the outer bevel iron are respectively provided with an inner bevel iron pin hole and an outer bevel iron pin hole, a tension spring fixing pin is inserted into the inner bevel iron pin hole and the outer bevel iron pin hole, and the inner bevel iron and the outer bevel iron are connected by a tension spring to form a linkage structure, forming an active action point of the clamping assembly, which effectively solves the technical problem that the center point and center line of the drilling machine are difficult to mark in the prior art. The inner bevel iron slides relative to the outer bevel iron, thereby achieving the technical effect of radial adjustment of the clamping assembly.

[0013] 4. Since the embodiment of the present application adopts the technical means of setting a long straight nylon row of needle roller bearings between the inner bevel iron and the outer bevel iron, when the inner bevel iron and the outer bevel iron slide along the outer bevel iron, the inner bevel iron and the outer bevel iron are in rolling friction, which effectively solves the technical problem that the center point and center line of the drilling machine are difficult to mark in the prior art, has small resistance and is not easy to wear, thereby achieving the technical effect of facilitating the adjustment of the clamping assembly.

[0014] 5. Since the embodiment of the present application adopts the technical means that the threaded sleeve is provided with an external thread, a handle is provided on the outside of the threaded sleeve, and a hollow shaft is provided on the inside of the threaded sleeve, a flat bearing is assembled on the hollow shaft, the handle is rotated, the external threaded guide sleeve is screwed into the collar, and the hollow shaft pushes the clamping assembly to adjust radially, which effectively solves the technical problem that the center point and center line of the drilling machine in the prior art are difficult to mark, and the drill bit passing through the through hole is locked and fixed, thereby achieving the technical effect of the external threaded guide sleeve and the drill bit being concentric.

[0015] 6. Since the embodiment of the present application adopts a technical means in which the laser emitter switch contact is a stepped shaft, a limit shaft is provided at one end of the laser emitter switch contact, a core shaft is provided at the other end, and a shoulder is provided between the limit shaft and the core shaft, the limit shaft end of the laser emitter switch contact is concentrically connected with the mounting hole of the sleeve ring connecting seat, which effectively solves the technical problem in the prior art that the center point and center line of the drilling machine are difficult to mark, thereby achieving the technical effect that the laser point / line emitted by the laser emitter is the center point / line of the drill bit.

[0016] The invention is suitable for use as a laser centering device for tightening of drilling machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is the southeast isometric view of this embodiment; Figure 2 This is a northwest isometric view of this embodiment; Figure 3 This is a southeast isometric half-section view of this embodiment; Figure 4 This is a southwest isometric half-section view of this embodiment; Figure 5 This is a schematic diagram of the explosion structure of this embodiment; Figure 6 This is the front view of the present embodiment; Figure 7 This is a front cross-sectional view of this embodiment; Figure 8 This is the southeast isometric view of the collar connection seat; Fig. 9 It is the southwest isometric view of the collar connection seat; Fig.10 It is the southeast isometric view of the collar; Fig.11 It is the northwest isometric view of the collar; Fig.12 This is the southeast isometric view of the external thread guide sleeve; Fig.13 This is the northwest isometric view of the external thread guide sleeve; Fig.14 Southeast isometric view of the laser transmitter switch contacts; Fig.15 Southwest isometric view of the switch contacts for the laser transmitter; Fig.16 This is a schematic diagram of the lower inclined iron structure; Fig.17 This is a schematic diagram of the upper inclined iron structure; Fig.18 It is a tension spring fixing pin.

[0019] In the figure: 0. Drill bit; 1. Ring connector, 11. Ring body, 111. Groove, 12. Ring seat, 121.Mounting hole, 122. Screw holes; 2. Laser components, 21. Laser transmitter, 22. Spring, 23. Laser transmitter switch contacts, 231. Limit axis, 232. Shoulder, 233. Mandrel, 24. Fixing screws; 3. Ring, 31. Internal thread, 32. Notching; 4. External thread guide sleeve, 41.Threaded sleeve, 411.Through hole, 42.Hollow shaft, 421. Limiting hole, 43. Handle; 5. Bearings, 51. Plane bearings, 52. Short linear nylon row needle roller bearings, 53. Long linear nylon row needle roller bearings; 6. Inner inclined iron, 61.Inner inclined iron slope, 62. Inner inclined iron pin hole, 63. Inner inclined iron facade; 7. External inclined iron, 71. External inclined iron bevel, 72. External oblique iron pin hole; 8. Tension spring fixing pin, 81. Pin, 82. Groove; 9. Tension spring. DETAILED DESCRIPTION

[0020] 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, rather than all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0021] As shown in the figure, a drilling machine tightening auxiliary laser centering device includes a collar connection seat 1, a laser component 2, a collar 3, an external thread guide sleeve 4 and a clamping component; The clamping assembly is used to clamp and fix the drill bit 0; The collar 3 is a hollow structure for accommodating the clamping assembly; an internal thread 31 is provided at one end of the collar 3, and a circular array of slots 32 is provided at the other end for assembling the clamping assembly and limiting the position; The external thread guide sleeve 4 is provided with an external thread, which is threadedly connected to the internal thread 31 end of the collar 3, and is used to adjust the clamping assembly to tighten the drill bit 0; The collar connection 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 connection seat 1, and the ring seat 12 is arranged at the other end. The centers of the ring body 11 and the ring seat 12 are collinear; a circular ring array and a groove 111 corresponding to the notch 32 on the collar 3 are arranged on the ring body 11. 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 ring body 11; a mounting hole 121 is arranged on the ring seat 12, and a screw hole 122 is radially arranged in the mounting hole 121; in this embodiment, the groove 111 and the notch 32 are evenly arranged in three; The laser assembly 2 has a laser emitter 21, which is screwed to the screw hole 122 on the mounting hole 121 by means of a fixing screw 24, so that the laser emitter 21 is locked on the mounting hole 121 of the ring seat 12; Among them, the drill bit 0 is inserted into the external threaded guide sleeve 4, the ring 3 and the ring connecting seat 1 jointly limit the clamping assembly, and the external threaded 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 center line of the drill bit 0 are indicated by laser, so that the center point and center line of the drilling machine can be directly marked with a marker pen according to the laser indication.

[0022] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the collar 3 is concentrically connected to the collar connecting seat 1, an externally threaded guide sleeve 4 is installed on one side of the collar 3, a laser assembly 2 is installed 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 by the externally threaded guide sleeve 4 is colinear with the center of the laser emitter 21 installed 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, and then the center point / line marked by a marker pen through the laser point / line is equivalent to the center point / line of the drilling machine, thereby improving work efficiency and avoiding damage to the workpiece caused by secondary dot-marking of the traditional center drill.

[0023] In order to ensure the stability of the structure of this embodiment, the clamping assembly includes 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. 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, and an inner inclined iron inclined surface 61 is provided at the inclined portion of the inner inclined iron 6, and an inner inclined iron vertical surface 63 is provided at the vertical portion of the inner inclined iron 6. The inner inclined iron 6 is provided with inner inclined iron pin holes 62 that penetrate therethrough. The outer inclined iron 7 is also a trapezoidal structural block, and 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. 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 is aligned with the outer bevel iron inclined surface 71 of the outer bevel iron 7, and the inner bevel iron 6 contacts the drill bit 0 to form a ratchet for clamping the drill bit 0. In this embodiment, the three ratchets are linked to clamp the drill bit 0 together, so that the clamping assembly is in line with the center of the drill bit 0. One end of the side of the outer bevel iron 7 is embedded in the slot 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; A long straight nylon row needle roller bearing 53 is provided between the outer inclined iron bevel surface 71 of the outer inclined iron 7 and the inner inclined iron bevel surface 61 of the inner inclined iron 6, so as to enable the inner inclined iron 6 to slide along the outer inclined 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 crosses the outer bevel iron pin hole 72 or the inner bevel iron pin hole 62. A 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, and the clamping assembly is adjusted to clamp and fix the drill bit 0. A 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 threaded guide sleeve 4. A plane bearing 51 is arranged adjacent to the outer side of the short linear nylon row needle roller bearing 52 to ensure its free rotation and transmit the load of the external threaded guide sleeve 4.

[0024] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the outer bevel iron 7 is embedded in the notch 32 of the collar 3 and the groove 111 of the collar connecting seat 1, the outer bevel iron 7 is fixed relative to the collar 3 and the collar connecting seat 1 to form a fixed action point of the clamping assembly.

[0025] Since the inner bevel iron 6 and the outer bevel iron 7 are respectively provided with an inner bevel iron pin hole 62 and an outer bevel iron pin hole 72, a tension spring fixing pin 8 is inserted into the inner bevel iron pin hole 62 and the outer bevel iron pin hole 72, and the inner bevel iron 6 and the outer bevel iron 7 are connected by a tension spring 9 to form a linkage structure, forming an active action point of the clamping assembly, and the inner bevel iron 6 slides relative to the outer bevel iron 7 to realize radial adjustment of the clamping assembly.

[0026] Since a long straight nylon row needle roller bearing 53 is arranged between the inner bevel iron 6 and the outer bevel iron 7, when the inner bevel iron 6 and the outer bevel iron 7 slide along the outer bevel iron 7, the inner bevel iron 6 and the outer bevel iron 7 are in rolling friction, with small resistance and not easy to wear, which is convenient for adjustment of the clamping assembly.

[0027] In order to optimize the structure of this embodiment, the externally threaded guide sleeve 4 is a stepped transparent cover, including a threaded sleeve 41, a hollow shaft 42 and a handle 43. The threaded sleeve 41 is a disc structure, and an external thread is provided on the threaded sleeve 41. A through hole 411 is provided in the middle of the threaded sleeve 41 for the drill bit 0 to pass through; a handle 43 is provided on the outside of the threaded sleeve 41 for rotating the externally threaded guide sleeve 4 to screw the externally threaded guide sleeve 4 in or out; a hollow shaft 42 is provided on the inside of the threaded sleeve 41 for assembling a plane bearing 51, and a limiting hole 421 is provided on the hollow shaft 42, which matches the drill bit 0 for inserting the drill bit 0.

[0028] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the threaded sleeve 41 is provided with an external thread, a handle 43 is provided on the outer side of the threaded sleeve 41, and a hollow shaft 42 is provided on the inner side of the threaded sleeve 41, the plane bearing 51 is assembled on the hollow shaft 42, and the handle 43 is rotated, the external threaded guide sleeve 4 is screwed into the collar 3, and the hollow shaft 42 pushes the clamping assembly to adjust radially, and the drill bit 0 passing through the through hole 411 is locked and fixed, and the external threaded guide sleeve 4 is concentric with the drill bit 0.

[0029] In order to further optimize the structure of the present embodiment, the laser assembly 2 includes a laser emitter 21, a spring 22, a switch contact 23 of the laser emitter 21 and a fixing screw 24; the laser emitter 21 is a cylindrical straight-line or cross-shaped laser emitter 21, the switch contact 23 of the laser emitter 21 is a stepped shaft, a limit shaft 231 is provided at one end of the switch contact 23 of the laser emitter 21, a core shaft 233 is provided at the other end, and a shoulder 232 is provided between the limit shaft 231 and the core shaft 233; the limit shaft 231 end of the switch contact 23 of the laser emitter 21 is concentrically connected to the mounting hole 121 of the collar connecting seat 1, the plane of the 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 finally inserted after the switch contact 23 of the laser emitter 21 and the spring 22 are inserted into the mounting hole 121 of the collar connecting seat 1 in sequence, and the laser emitter 21 is locked and fixed by the fixing screw 24.

[0030] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the switch contact 23 of the laser emitter 21 is a stepped shaft, a limit shaft 231 is provided at one end of the switch contact 23 of the laser emitter 21, a core shaft 233 is provided at the other end, and a shoulder 232 is provided between the limit shaft 231 and the core shaft 233; therefore, the limit shaft 231 end of the switch contact 23 of the laser emitter 21 is concentrically connected to the mounting hole 121 of the sleeve connecting seat 1, and the laser point / line emitted by the laser emitter 21 is the center point / line of the drill bit 0.

[0031] The working principle of this embodiment: The collar 3 is fixed, and during the screwing process of the external threaded guide sleeve 4, the hollow shaft 42 pushes the plane bearing 51, the short linear nylon row needle roller bearing 52, and the inner bevel iron 6 to move axially; since the outer bevel iron 7 is fixed, a long linear nylon row needle roller bearing 53 is provided between the outer bevel iron 7 and the inner bevel iron 6, and the inner bevel iron inclined surface 61 of the inner bevel iron 6 slides relative to the outer bevel iron inclined surface 71 of the outer bevel iron 7, and continuously pushes the inner bevel iron 6 to move radially toward the drill bit 0 until the drill bit 0 is clamped and locked; since each movement is synchronized, at this time the center of the drill bit 0 coincides with the center of the entire device, that is, the laser point / line emitted by the laser emitter 21 is the center point / line of the drill bit 0, thereby realizing laser centering.

[0032] It is worth noting that the contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of the laser emitter 21 are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling machine tightening auxiliary laser centering device, characterized by: include: A clamping assembly, the clamping assembly being used to clamp and fix the drill bit (0); A collar (3), the collar (3) being a hollow structure and used to accommodate 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 (31) end of the collar (3), and being used for adjusting the clamping assembly to fasten the drill bit (0); A collar connection seat (1), the collar connection seat (1) being concentrically connected to the collar (3), comprising a ring body (11) and a ring seat (12), the ring body (11) being arranged at one end of the collar connection seat (1), and the ring seat (12) being arranged at the other end, the ring body (11) and the ring seat (12) being colinear in center; a groove (111) in a circular ring array and corresponding to the notch (32) on the collar (3) being arranged on the collar body (11), the groove (111) and the notch (32) being used together to limit the position of the clamping assembly, the clamping assembly being received in the inner cavity of the collar body (11); a mounting hole (121) being arranged on the ring seat (12), the mounting hole (121) being radially provided with a screw hole (122); and A laser assembly (2), the laser assembly (2) comprising 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 externally threaded guide sleeve (4), the collar (3) and the collar connecting seat (1) are used together to limit the position of the clamping assembly, and the externally threaded 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 pen according to the laser indication.

2. The drilling machine tightening auxiliary laser centering device according to claim 1 is 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) comprises a plane bearing (51), a short linear nylon row needle roller bearing (52) and a long linear nylon row needle roller bearing (53); the inclined iron comprises 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 at the inclined portion of the inner inclined iron (6), an inner inclined iron vertical surface (63) is provided at 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); 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) 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 arranged 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) to enable the inner bevel iron (6) to slide along the outer bevel iron (7); A tension spring fixing pin (8) is respectively mounted 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) comprising a pin shaft (81) and a groove (82), the pin shaft (81) passing through the outer bevel iron pin hole (72) or the inner bevel iron pin hole (62), the groove (82) being arranged at the outer end of the pin shaft (81), the hooks at both ends of the tension spring (9) being 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 onto the inner inclined iron vertical surface (63) of the inner inclined iron (6) for bearing the thrust of the externally threaded guide sleeve (4); the plane bearing (51) is arranged adjacent to the outer side of the short linear nylon row needle roller bearing (52) for transmitting the load of the externally threaded guide sleeve (4).

3. The laser centering device for tightening a drilling machine 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 tightening a drilling machine according to claim 2, characterized in that: The externally threaded guide sleeve (4) comprises a threaded sleeve (41), a hollow shaft (42) and a handle (43); the threaded sleeve (41) is a disc structure, the threaded sleeve (41) is provided with an external thread, and a through hole (411) is provided in the middle of the threaded sleeve (41); the handle (43) is provided on the outside of the threaded sleeve (41) and is used to rotate the externally threaded guide sleeve (4) to screw the externally threaded guide sleeve (4) in or out; the hollow shaft (42) is provided on the inside of the threaded sleeve (41) and is used to assemble the plane bearing (51); 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 drilling machine tightening auxiliary laser centering device according to claim 4 is characterized in that: The laser assembly (2) comprises 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); 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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