CN218168803U

CN218168803U - Clamping mechanism and drilling machine

Info

Publication number: CN218168803U
Application number: CN202222458431.5U
Authority: CN
Inventors: 翟艳英; 周明涛; 范光明
Original assignee: Tianze Electric Power Tianjin Co ltd
Current assignee: Tianze Electric Power Tianjin Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2022-12-30
Anticipated expiration: 2032-09-15

Abstract

The application relates to the technical field of railway maintenance machinery, and discloses a clamping mechanism and a drilling machine. The clamping mechanism comprises a first clamping part, a mounting seat and a bolt; the first side of the first clamping part is opposite to the second side of the first clamping part, the first side of the first clamping part is a clamping side, and a connecting part is formed on the second side of the first clamping part in an extending manner in the direction far away from the clamping side; the first side of the mounting seat is arranged close to the second side of the first clamping part, the first side of the mounting seat is arranged opposite to the second side of the mounting seat, the peripheral end face between the first side of the mounting seat and the second side of the mounting seat is the peripheral side of the mounting seat, and a mounting groove is formed in the peripheral side of the mounting seat; the connecting part is inserted into the mounting groove and locked by the bolt to realize locking between the first clamping part and the mounting seat. The drilling machine comprises a drilling machine body, a drill bit seat, a drill bit and the clamping mechanism. The application has the characteristics of reasonable design, simple structure, convenience in disassembly and assembly and the like.

Description

Clamping mechanism and drilling machine

Technical Field

The application relates to the technical field of railway maintenance machinery, in particular to a clamping mechanism and a drilling machine.

Background

The drilling machine is an essential small machine tool for maintaining and repairing the railway on the railway, and plays an important role in laying the steel rail. The drilling machine for processing the steel rail can be divided into two types of engineering and electrical engineering, and has various power forms, such as alternating current motor, internal combustion engine, hydraulic pressure, lithium battery and the like. The drilling machine in the prior art is basically composed of a drill bit, a mounting seat, a clamping mechanism, a feeding mechanism and a power and transmission mechanism (reduction gearbox) which are arranged in a body, a cooling mechanism and other auxiliary components; wherein the drill bit is arranged on the output side of the body through the mounting seat, the power is transmitted to the reduction gearbox, the output gear of the reduction gearbox drives the drill bit to rotate, the feeding mechanism is driven by manpower or electric power to act, the feeding gear drives the feeding rack to realize the feeding of the drill bit, and in addition, the whole drilling machine is fixed on the steel rail by the clamping mechanism.

In the prior art, the clamping mechanism is arranged on the output side of the body through the mounting seat, specifically, the clamping mechanism is arranged on the first side of the mounting seat, the second side of the mounting seat is arranged on the output side of the body, the clamping mechanism mainly comprises a first clamping portion, a second clamping portion and a driving mechanism, the first clamping portion is fixedly arranged on the first side of the mounting seat, the second clamping portion is arranged at the output end of the driving mechanism, the driving mechanism is fixedly arranged on the upper portion of the mounting seat, and the second clamping portion can move towards the first clamping portion under the driving of the driving mechanism, so that the first clamping portion and the second clamping portion are clamped on the steel rail together, so as to lock the whole drilling machine on the steel rail, or the second clamping portion can move away from the first clamping portion under the driving of the driving mechanism, so as to release the locking between the whole drilling machine and the steel rail. The first clamping part is fastened on the first side of the mounting seat through bolts, four bolts which are uniformly distributed are generally adopted to realize fixation, the central axes of the four bolts are all arranged in parallel with the central axis of the drill bit, and the fixation mode is too dependent on the strength of the bolts; the drill bit can generate large vibration during rotary work, the vibration can cause the first clamping part to generate a moving trend along the radial direction of the central axis of the drill bit, the moving trend can enable the first clamping part to shear the bolt, and the bolt is easy to deform after long-term use; in addition, the bolt needs to be installed from the first side of the installation seat, and the second clamping portion is just opposite to the first side of the installation seat due to the structural layout, so that inconvenience is caused for dismounting and mounting of the bolt, and the assembly and replacement of the first clamping portion are not facilitated.

In view of the above, it is desirable to develop a novel clamping mechanism for a drilling machine to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The clamping mechanism and the drilling machine aim at overcoming the defects in the prior art and are reasonable in design, simple in structure and convenient and fast to assemble and disassemble.

In order to solve the technical problem, the following technical scheme is adopted in the application:

in a first aspect, the present application provides a clamping mechanism comprising a first clamping portion, a mount, and a bolt;

the first side of the first clamping part is opposite to the second side of the first clamping part, the first side of the first clamping part is a clamping side, and a connecting part is formed on the second side of the first clamping part in an extending manner in the direction far away from the clamping side;

the first side of the mounting seat is arranged close to the second side of the first clamping part, the first side of the mounting seat is arranged opposite to the second side of the mounting seat, the peripheral end face between the first side of the mounting seat and the second side of the mounting seat is the peripheral side of the mounting seat, and a mounting groove is formed in the peripheral side of the mounting seat;

the connecting part is inserted into the mounting groove and locked by the bolt to realize locking between the first clamping part and the mounting seat.

Furthermore, a second side of the first clamping part is provided with a first positioning part, and a first side of the mounting seat is provided with a second positioning part; when the connecting part is inserted into the mounting groove, the first positioning part and the second positioning part are matched to realize positioning and mounting of the connecting part and the mounting groove.

Further, the first positioning portion is an end plane of a second side of the first clamping portion, and the second positioning portion is an end plane of a first side of the mounting seat.

Furthermore, a first guide part is arranged on the connecting part, and a second guide part is arranged on the mounting groove; when the connecting part is inserted into the mounting groove, the first guide part and the second guide part are matched for use to guide the connecting part to be inserted into the mounting groove.

Further, the first guide part is a first edge surface and a second edge surface of the connecting part, and the first edge surface and the second edge surface are both arranged in parallel with the advancing direction of the connecting part when the connecting part is inserted into the mounting groove; the second guide part is the third edge face and the fourth edge face of mounting groove connecting portion insert extremely during in the mounting groove, the third edge face with first edge face laminates mutually and both can relative slip, the fourth edge face with second edge face laminates mutually and both can relative slip.

Furthermore, the mounting groove is a dovetail groove, and the outer contour of the connecting part is matched with the mounting groove.

Furthermore, a screw hole matched with the bolt for use is formed in the mounting groove; an opening through which the bolt passes is arranged on the connecting part, and the opening is configured to: the opening allows the bolt installed in the screw hole to be able to slide in or out with respect to the opening in a process in which the connection part is inserted into the installation groove or the connection part is pulled out from the installation groove.

Further, the bolt is a butterfly bolt.

Further, the clamping mechanism further comprises a second clamping part which can move towards the first side of the first clamping part under the driving of the driving mechanism.

In a second aspect, the present application provides a drill comprising a drill body and a drill bit mounted on an output side of the drill body, the drill further comprising the clamping mechanism described above;

the second side of the mounting seat is mounted on the output side of the drilling machine body;

the first clamping part comprises at least one clamping plate and connecting parts, the number of the connecting parts is consistent with that of the clamping plates, the first side of each clamping plate is a clamping side, the second side of each clamping plate is connected with one connecting part, mounting grooves, the number of which is consistent with that of the connecting parts, are formed in the mounting seat, each mounting groove is formed in the outer peripheral side of the mounting seat, and each connecting part is inserted into the corresponding mounting groove and locked by one bolt; or alternatively

The first clamping part comprises two clamping plates, two connecting parts and a connecting plate, the first side of each clamping plate is a clamping side, the second side of each clamping plate is connected with one connecting part, and the two clamping plates are fixed into a whole through the connecting plate and are arranged on the first side of the mounting seat together; the mounting seat is provided with two mounting grooves which are respectively arranged on two peripheral sides of the mounting seat, wherein the two peripheral sides are oppositely arranged, and each connecting part is respectively inserted into the corresponding mounting groove and is respectively locked by one bolt.

Compared with the prior art, the beneficial effect of this application is:

1. according to the structure design, after the connecting part and the mounting groove are assembled in place, the bolt can be mounted in the direction vertical to the connecting part or from the outer peripheral side of the mounting seat, so that the interference of the second clamping part can be avoided, the problem of inconvenience in dismounting and mounting of the bolt is solved, and the assembly and replacement of the first clamping part are facilitated; in addition, the plug-in mounting mode of the connecting part and the mounting groove is adopted as an assembly structure between the first clamping part and the mounting seat, and the clamping device has the advantages of being reasonable in design and simple in structure.

2. The first positioning part and the second positioning part are matched with each other, and the first guide part and the second guide part are matched with each other, so that the connecting part can be rapidly and smoothly inserted into the mounting groove; the first clamping part can be limited to move up and down and move backwards through the positioning assembly of the connecting part and the mounting groove, so that the fixing structure of the first clamping part does not depend on the strength of the bolt too much, and the using number of the bolt can be reduced; in addition, compared with the prior art, the bolt changes the installation direction, namely, the original installation mode parallel to the central axis of the drill bit is changed into the installation mode perpendicular to the central axis of the drill bit, so that the damage of the first clamping part to the bolt due to the movement tendency generated by the working vibration of the drill bit can be reduced, and the service life of the bolt can be prolonged.

3. Still the design has the opening in this application, moreover at the plug in-process of connecting portion for the mounting groove, the opening can not produce with the bolt all the time and interfere, and such structure allows: in the dismouting in-process of first clamping part, only need loosen bolt and need not break away from the mount pad and can insert connecting portion to the mounting groove in or extract connecting portion from the mounting groove, have the convenient characteristics of dismouting.

Drawings

In order that the advantages of the application will be readily understood, a more particular description of the application briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the application and are not therefore to be considered to be limiting of its scope, the application will be described and explained with additional specificity and detail through the use of the accompanying drawings.

Fig. 1 is a schematic perspective view of a drilling machine according to the present application;

fig. 2 is a schematic perspective view of a first clamping portion according to the present application;

FIG. 3 is a schematic perspective view of another first clamping portion of the present application;

FIG. 4 is a side view of another first clamping portion of the present application;

FIG. 5 is a perspective view of the mounting base of the present application;

fig. 6 is a side view of the mounting base of the present application.

The reference numbers are as follows:

100-first clamping part, 101-clamping plate, 102-connecting plate, 103-connecting part, 104-first positioning part, 105-first guiding part, 106-opening;

200-mounting seat, 201-mounting groove, 202-second positioning part, 203-second guiding part, 204-screw hole;

300-bolts;

400-a second grip;

500-a drive mechanism;

600-drill body.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art, that the embodiments of the present application may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the embodiments of the present application.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present application. It is apparent that the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the present application, however, may have other embodiments in addition to those detailed.

In the description of the present application, the term "a and/or B" denotes all possible combinations of a and B, such as a alone, B alone or a and B, and the term "at least one a or B" or "at least one of a and B" means similar to "a and/or B" and may include a alone, B alone or a and B; the singular forms "a", "an" and "the" may include the plural forms as well; the terms "inboard", "outboard", "longitudinal", "lateral", "upper", "lower", "top", "bottom", and the like, indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the application and do not require that the application must be constructed and operated in a particular orientation and therefore should not be construed as limiting the application; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Embodiments of the present application are described in further detail below with reference to the attached drawing figures:

example one

Referring to fig. 1 to 6, the present embodiment provides a clamping mechanism including a first clamping portion 100, a mount 200, and a bolt 300.

The first side of the first clamping portion 100 is opposite to the second side of the first clamping portion 100, the first side of the first clamping portion 100 is a clamping side, and the second side of the first clamping portion 100 is extended to a direction away from the clamping side to form a connecting portion 103. Preferably, the connecting portion 103 is a sheet-like structure, and its outer contour includes, but is not limited to, a rectangular, prismatic shape.

The first side of the mounting seat 200 is arranged close to the second side of the first clamping part, the first side of the mounting seat 200 is arranged opposite to the second side of the mounting seat 200, and the peripheral end surface between the first side of the mounting seat 200 and the second side of the mounting seat 200 is the peripheral side of the mounting seat 200; here, the outer peripheral side of the mount 200 refers to the remaining two side end surfaces of the four sides except the first side of the mount 200 and the second side of the mount 200, and does not include the upper end surface and the lower end surface of the mount 200. An installation groove 201 is also arranged on the outer periphery side of the installation seat 200; here, the mounting groove 201 may refer to a groove formed on an outer circumferential surface of the mounting seat 200 and extending from a first side of the mounting seat 200 to a second side of the mounting seat 200, or the mounting groove 201 may refer to a blind hole formed inside the outer circumferential surface of the mounting seat 200 and extending from the first side of the mounting seat 200 to the second side of the mounting seat 200.

The connection part 103 is inserted into the installation groove 201 and locked by the bolt 300, and specifically, the bolt 300 penetrates the connection part 103 and locks the connection part 103 in the installation groove 201 to achieve locking between the first clamping part 100 and the installation base 200

Due to the structural design, after the connecting part 103 and the mounting groove 201 are assembled in place, the bolt 300 can be mounted from the direction perpendicular to the connecting part 103 or from the outer peripheral side of the mounting seat 200, so that the interference of the second clamping part 400 can be avoided, the problem of inconvenience in dismounting and mounting of the bolt 300 is solved, and the assembly and replacement of the first clamping part 100 are facilitated; in addition, the insertion mode of the connecting part 103 and the mounting groove 201 is adopted as the assembling structure between the first clamping part 100 and the mounting seat 200, and the assembling structure has the characteristics of reasonable design and simple structure.

In the present embodiment, as shown in fig. 4 and 6, the second side of the first clamping portion 100 is provided with a first positioning portion 104, and the first side of the mounting seat 200 is provided with a second positioning portion 202; when the connecting portion 103 is inserted into the mounting groove 201, the first positioning portion 104 and the second positioning portion 202 are used in cooperation to realize positioning and mounting of the connecting portion 103 and the mounting groove 201. The first positioning portion 104 and the second positioning portion 202 can not only perform the positioning function when the connecting portion 103 and the mounting groove 201 are assembled, but also perform the function of limiting the backward movement of the first clamping portion 100 during the clamping process.

Preferably, the first positioning portion 104 is an end plane of the second side of the first clamping portion 100, and the second positioning portion 202 is an end plane of the first side of the mounting seat 200.

In the present embodiment, as shown in fig. 4 and 6, the connecting portion 103 is provided with a first guide portion 105, and the mounting groove 201 is provided with a second guide portion 203; when the connection part 103 is inserted into the mounting groove 201, the insertion of the connection part 103 into the mounting groove 201 is guided by the cooperative use of the first guide part 105 and the second guide part 203. The first guide portion 105 and the second guide portion 203 can not only perform a guiding function, but also perform a function of limiting the up-and-down movement of the first clamping portion 100 during the clamping process.

Preferably, the first guide part 105 is a first edge surface and a second edge surface of the connection part 103, both of which are disposed in parallel with a traveling direction of the connection part 103 when inserted into the mounting groove 201; the second guiding portion 203 is a third edge surface and a fourth edge surface of the mounting groove 201, and when the connecting portion 103 is inserted into the mounting groove 201, the third edge surface and the first edge surface are attached to each other and can slide relative to each other, and the fourth edge surface and the second edge surface are attached to each other and can slide relative to each other.

Preferably, the mounting groove 201 is a dovetail groove, and the outer contour of the connecting part 103 is matched with the mounting groove 201; the dovetail groove is designed to not only serve as a guide, but also restrict the connection portion 103 inserted into the dovetail groove from being separated from the side surface.

The cooperation of the first positioning portion 104 and the second positioning portion 202 and the cooperation of the first guide portion 105 and the second guide portion 203 can help to insert the connecting portion 103 into the mounting groove 201 quickly and smoothly; and the up-and-down movement and the backward movement of the first clamping part 100 can be limited by the positioning and assembling of the connecting part 103 and the mounting groove 201, so that the fixing structure of the first clamping part 100 does not depend too much on the strength of the bolt 300, and the using number of the bolt 300 can be reduced.

In the present embodiment, as shown in fig. 4 and 6, a screw hole 204 used in cooperation with a bolt 300 is provided in the mounting groove 201; the connecting portion 103 is provided with an opening 106 through which the bolt 300 passes, and the opening 106 is configured to: the opening 106 allows the bolt 300 mounted in the screw hole 204 to slide in and out with respect to the opening 106 during the insertion of the connecting portion 103 into the mounting groove 201 or the extraction of the connecting portion 103 from the mounting groove 201. The connection portion 103 does not block the screw hole 204, and when the screw hole 204 intersects with the opening 106, the screw hole 204 is always contained in the opening 106. During the insertion and extraction of the connection portion 103 with respect to the mounting groove 201, the opening 106 does not interfere with the bolt 300 at all times, and such a structure allows: in the process of disassembling and assembling the first clamping portion 100, the connecting portion 103 can be inserted into the mounting groove 201 or the connecting portion 103 can be pulled out of the mounting groove 201 only by loosening the bolt 300 and the bolt 300 without being separated from the mounting seat 200, and the first clamping portion 100 has the characteristic of convenience in disassembly and assembly.

In this embodiment, as shown in fig. 1, the bolt 300 is preferably a butterfly bolt, which can be directly and manually screwed or unscrewed, so as to facilitate the assembly and disassembly.

In this embodiment, as shown in fig. 1, the clamping mechanism further includes a second clamping portion 400, and the second clamping portion 400 is driven by the driving mechanism 500 to move toward the first side of the first clamping portion 100. The first clamping portion 100 and the second clamping portion 400 can be clamped together on the rail under the urging of the drive mechanism 500 to lock the entire drill to the rail. Wherein, the driving mechanism 500 is installed on the upper end surface of the mounting base 200, the driving mechanism 500 can be adjusted by manpower or electric drive, the driving mechanism 500 for driving the second clamping portion 400 to move belongs to the prior art, the specific structure of the driving mechanism 500 can refer to the clamping mechanism disclosed in the chinese utility model patent (name: rail drilling machine, grant publication No. CN 211218793U), and the remaining structure of the clamping mechanism after the first clamping portion and the second clamping portion are removed in the utility model patent can be used as the driving mechanism 500 in the present embodiment.

Example two

As shown in fig. 1, the present embodiment provides a drill, including a drill body 600, a mount 200, a drill bit and a clamping mechanism as described in the first embodiment, wherein the second side of the mount 200 is mounted on the output side of the drill body 600, the drill bit is mounted on the output side of the drill body 600 through the mount 200, and the drill bit is provided with a feeding and rotational driving force by a feeding mechanism and a power and transmission mechanism in the drill body 600, and the clamping mechanism is used for locking or unlocking the whole drill and a steel rail.

The first clamping portion 100 comprises at least one clamping plate 101 and connecting portions 103, the number of the connecting portions is the same as that of the clamping plates 101, the first side of each clamping plate 101 is a clamping side, the second side of each clamping plate 101 is connected with one connecting portion 103, mounting grooves 201, the number of the mounting grooves is the same as that of the connecting portions 103, the mounting grooves 201 are arranged on the outer peripheral side of the mounting seat 200, and each connecting portion 103 is inserted into the corresponding mounting groove 201 and locked by a bolt 300.

Preferably, as shown in fig. 2, the first clamping portion 100 may include two clamping plates 101, two connecting portions 103 and a connecting plate 102, a first side of each clamping plate 101 is a clamping side, a second side of each clamping plate 101 is connected with one connecting portion 103, and the two clamping plates 101 are fixed together by the connecting plate 102 and are disposed together on a first side of the mounting base 200; the mounting seat 200 is provided with two mounting grooves 201, the two mounting grooves 201 are respectively arranged on two outer peripheral sides of the mounting seat 200, the two outer peripheral sides are oppositely arranged, and each connecting portion 103 is respectively inserted into the corresponding mounting groove 201 and is respectively locked by a bolt 300. The structure formed by the two clamping plates 101 and the connecting plate 102 is a C-shaped plate, and the three parts can be integrally formed, but of course, the two connecting parts 103 can also be integrally formed with the two clamping plates 101 in consideration of structural stability and durability.

Preferably, the first clamping portion 100 may further include two clamping plates 101 and two connecting portions 103, the two clamping plates 101 are oppositely disposed on a first side of the mounting base 200, the first side of each clamping plate 101 is a clamping side, the second side of each clamping plate 101 is connected with one connecting portion 103, and each connecting portion 103 may be integrally formed with the corresponding clamping plate 101; the mounting seat 200 is provided with two mounting grooves 201, the two mounting grooves 201 are respectively arranged on two outer circumferential sides of the mounting seat 200, the two clamping plates 101 are independent of each other, as shown in fig. 3, each clamping plate 101 is respectively inserted into the corresponding mounting groove 201 through the corresponding connecting portion 103 and is respectively locked by a bolt 300, so that the two clamping plates 101 are respectively arranged on the two outer circumferential sides of the mounting seat 200. The structure design has the characteristics of simple structure, simple assembly, easy processing, low manufacturing cost and the like.

The first clamping portion 100 is not limited to the two structures, and may be connected to the mounting seat 200 by assembling the connecting portion 103 and the mounting groove 201.

Compared with the prior art, the bolt 300 in the embodiment changes the installation direction, that is, the original installation mode parallel to the central axis of the drill bit is changed into the installation mode perpendicular to the central axis of the drill bit, so that the damage of the first clamping part 100 to the bolt 300 due to the movement tendency generated by the working vibration of the drill bit can be reduced, and the service life of the bolt 300 can be prolonged. Further, the bolt 300 is installed from the outer circumferential side of the mounting seat 200, so that interference of the second clamping portion 400 can be avoided, thereby solving the problem of inconvenience in mounting and dismounting the bolt 300, and facilitating assembly and replacement of the first clamping portion 100.

While there have been shown and described what are at present considered the fundamental principles and essential features of the application and its advantages, it will be apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics of the application. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The clamping mechanism is characterized by comprising a first clamping part, a mounting seat and a bolt;

2. The clamping mechanism according to claim 1, wherein a second side of the first clamping portion is provided with a first positioning portion, and a first side of the mounting base is provided with a second positioning portion; when the connecting part is inserted into the mounting groove, the first positioning part and the second positioning part are matched to be used for positioning and mounting the connecting part and the mounting groove.

3. The clamping mechanism as claimed in claim 2, wherein said first positioning portion is an end flat surface of a second side of said first clamping portion and said second positioning portion is an end flat surface of a first side of said mounting seat.

4. The clamping mechanism as recited in claim 1, wherein a first guide portion is disposed on the connecting portion and a second guide portion is disposed on the mounting slot; when the connecting part is inserted into the mounting groove, the first guide part and the second guide part are matched to guide the connecting part to be inserted into the mounting groove.

5. The clamping mechanism as recited in claim 4, wherein said first guide portion is a first edge surface and a second edge surface of said connecting portion, said first edge surface and said second edge surface each being disposed parallel to a direction of travel of said connecting portion when inserted into said mounting slot; the second guide part is the third edge face and the fourth edge face of mounting groove connecting portion insert extremely during in the mounting groove, the third edge face with first edge face laminates mutually and both can relative slip, the fourth edge face with second edge face laminates mutually and both can relative slip.

6. The clamping mechanism of claim 1 wherein said mounting slot is a dovetail slot and the outer profile of said connecting portion matches said mounting slot.

7. The clamping mechanism according to claim 1, wherein a screw hole used in cooperation with the bolt is provided in the mounting groove; an opening through which the bolt passes is arranged on the connecting part, and the opening is configured to: the opening allows the bolt installed in the screw hole to be able to slide in or out with respect to the opening in a process in which the connection part is inserted into the installation groove or the connection part is pulled out from the installation groove.

8. The clamping mechanism as recited in claim 1, wherein said bolt is a wing bolt.

9. The clamping mechanism as recited in claim 1, further comprising a second clamping portion movable toward the first side of the first clamping portion upon actuation of a drive mechanism.

10. A drilling machine comprising a drilling machine body and a drill bit mounted on an output side of the drilling machine body, characterized in that the drilling machine further comprises a clamping mechanism according to any one of claims 1-9;