CN108252350B

CN108252350B - Assembly structure of cutting teeth for slot milling machine and matched assembly thereof

Info

Publication number: CN108252350B
Application number: CN201810227757.2A
Authority: CN
Inventors: 吴兴丛
Original assignee: Xuzhou Libao Machinery Technology Co ltd
Current assignee: Xuzhou Libao Machinery Technology Co ltd
Priority date: 2018-03-20
Filing date: 2018-03-20
Publication date: 2023-05-12
Anticipated expiration: 2038-03-20
Also published as: CN108252350A

Abstract

The invention discloses an assembly structure of a cutting tooth for a slot milling machine and a matched assembly thereof, wherein the assembly structure comprises: the cutting tooth, the tooth holder, the wedge block, the first connecting piece and the second connecting piece; the tooth holder is provided with a U-shaped groove for accommodating the cutting teeth; the wedge block is clamped between the cutting teeth and the side wall of the U-shaped groove; a first concave-convex matching structure is arranged at the contact position of the cutting teeth and the tooth holder; the contact part of the wedge-shaped block and the tooth holder is provided with a second concave-convex matching structure; a third concave-convex matching structure is arranged at the contact position of the wedge block and the cutting teeth; the first concave-convex matching structure is connected through a first connecting piece; the second concave-convex matching structure is connected through a second connecting piece. The invention ensures the connection tightness between the cutting teeth and the tooth holder, and reduces the machining precision and the machining difficulty between the cutting teeth and the U-shaped grooves of the tooth holder; the tight fit between the parts is ensured, and the impact and abrasion to the U-shaped groove during the operation of the cutting teeth are reduced, so that the service life of the tooth holder is prolonged; and reduces the maintenance cost of the toothholder.

Description

Assembly structure of cutting teeth for slot milling machine and matched assembly thereof

Technical Field

The invention relates to the technical field of parts of slot milling machines, in particular to an assembly structure of a cutting tooth for a slot milling machine and a matched assembly thereof.

Background

As an advanced device for the current foundation construction, a milling machine is increasingly used, and the milling machine is used for breaking rock by means of rotation of a milling wheel, wherein the milling wheel of the milling machine is usually welded with a plurality of tooth seats, and mounting holes for mounting cutting teeth are formed in the tooth seats and are usually U-shaped. In practical application, the cutting teeth directly participate in rock breaking, the working condition is very bad, high impact and high stress are born, the cutting teeth continuously impact the tooth holder in the working process, the mounting holes of the cutting teeth on the tooth holder are continuously worn and deformed, when the deformation is larger than a certain value, the tooth holder needs to be trimmed, and the trimming needs to consume a lot of time, so that the influence on the construction period is large.

In order to avoid the too fast abrasion of the tooth holder and improve the service life of the tooth holder, the prior art has higher requirements on the material and the heat treatment of the tooth holder, and in order to avoid the adverse effect of the fit clearance between the cutting tooth and the mounting hole of the tooth holder in the initial stage of mounting (the larger the clearance is, the larger the impact of the cutting tooth on the mounting hole of the tooth holder is, the faster the abrasion is), the processing precision of the cutting tooth and the mounting hole of the tooth holder is required to be very high, so that the abrasion of the tooth holder can be delayed, but the production cost of the milling wheel can be greatly increased, and the service life of the milling wheel is still not ideal. In order to solve the problems, a U-shaped tooth sleeve is added between a tooth holder and a cutting tooth in the prior art, and the U-shaped tooth sleeve is directly replaced after being worn, so that although the service life of a working device can be prolonged, impact and wear can be formed between the tooth holder and the U-shaped tooth sleeve, and the processing difficulty of the tooth holder and the U-shaped tooth sleeve is higher; once the mounting holes on the toothholder for assembling the U-shaped toothholder are worn, the repair of the mounting holes is more difficult.

Accordingly, the present application is directed to an assembly structure of a cutting tooth for a slot milling machine and a kit thereof.

Disclosure of Invention

The invention aims to provide an assembly structure of a cutting tooth for a slot milling machine and a matched assembly thereof, which ensure the connection tightness between the cutting tooth and a tooth holder and simultaneously reduce the machining precision and the machining difficulty between the cutting tooth and a U-shaped slot of the tooth holder; the close fit between the parts is ensured, and the impact and abrasion to the U-shaped groove during the operation of the cutting teeth are effectively reduced, so that the service life of the tooth holder is prolonged; further, the trimming period of the tooth seat is reduced, and the construction period is ensured.

The technical scheme provided by the invention is as follows:

a toothholder for a slot milling machine, comprising:

the tooth holder body is provided with a U-like groove for accommodating the cutting teeth;

the U-shaped groove comprises a first side wall and a second side wall which are oppositely arranged;

the U-shaped groove is gradually reduced along the groove depth direction; the first side wall is parallel to the groove depth direction of the U-shaped groove; the second side wall and the first side wall are arranged at a first preset angle;

the first side wall is provided with a third through hole;

the second side wall is provided with a first through hole.

In this technical scheme, through set up the wedge between toothholder and cutting tooth to when guaranteeing the connection tightness between cutting tooth and the toothholder, still reduced machining precision and the processing degree of difficulty between the class U-shaped groove of cutting tooth and toothholder. The first connecting piece penetrates through the third through hole to ensure the connection stability and firmness between the cutting tooth and the tooth holder, the cutting tooth can be preinstalled on the tooth holder due to the third through hole, and convenience is provided for installation and adjustment of the cutting tooth, the wedge block and the tooth holder (namely, convenience is provided for the second connecting piece to penetrate through the first through hole to realize connection between the wedge block and the tooth holder and further realize installation of the cutting tooth, the wedge block and the tooth holder); the first connecting piece and the second connecting piece ensure the connection stability and firmness between the cutting teeth and the tooth holder; and the spacing between the first and second coupling members limits the wobble of the cutting tooth therebetween. More preferably, the tapered structure of the U-shaped groove is convenient for mounting and adjusting the cutting teeth. In practical application, for convenience of explanation, the first connecting piece and the second connecting piece are in left-right direction, that is, the cutting teeth do not swing left and right at this time; more preferably, the concave-convex matching structure between parts (between the cutting teeth and the tooth holder, between the tooth holder and the wedge block, and between the wedge block and the cutting teeth) also effectively limits the back-and-forth swing of the cutting teeth; due to concave-convex matching between parts, the installation clearance of the cutting teeth is further effectively reduced, so that the parts are tightly matched, the impact and abrasion to the U-shaped groove during the operation of the cutting teeth are effectively reduced, and the service life of the tooth holder is prolonged; further, the trimming period of the tooth seat is reduced, and the construction period is ensured.

Further preferably, the plurality of first through holes are sequentially arranged along the extending direction of the second side wall.

According to the technical scheme, the plurality of first through holes are arranged, so that the wedge-shaped blocks can be pushed towards the groove depth direction of the U-shaped groove in the use process of the cutting teeth, the second connecting piece is enabled to ensure the tight installation state of the first through holes which are closer to the bottom surface of the U-shaped groove and are correspondingly arranged with the second through holes on the wedge-shaped blocks, namely, the first through holes and the second through holes are tightly attached to each other without installation gaps, further, the trimming of a tooth seat is avoided, the construction period is ensured, the installation stability of the cutting teeth is greatly ensured, the swing of the cutting teeth in the working process is reduced, and the precision and the efficiency of the rock breaking position of the milling machine are ensured; the service life of the tooth holder is greatly prolonged, and the later maintenance cost and the repair cost of the slot milling machine are greatly reduced.

Further preferably, the first side wall and the second side wall are both V-shaped structures; the tip of the first sidewall is disposed toward the cutting tooth; the tip of the second sidewall is disposed toward the cutting tooth.

In the technical scheme, in practical application, the V-shaped structure can be well contained in the groove of the part adjacent to the V-shaped structure, so that gapless installation among the parts (the gapless installation among the cutting teeth, the wedge block and the tooth seat) can be realized; the small end (namely one side of the groove bottom) of the U-shaped groove is matched with the small end of the wedge-shaped block, and the large end (namely one side of the opening) of the U-shaped groove is matched with the large end of the wedge-shaped block, so that the cutting teeth, the wedge-shaped block and the tooth seat are installed without gaps, the damage to the assembly structure due to the existence of an installation gap is effectively reduced, and the service life of the assembly structure is prolonged.

Further preferably, the first preset angle has a value of 0.5 to 15 °.

The invention also discloses a matched assembly of the cutting tooth for the slot milling machine, which comprises the following components:

any one of the tooth holder, the wedge block, the first connecting piece and the second connecting piece;

the first connecting piece is used for connecting the cutting teeth and the tooth holder;

the wedge-shaped block is used for being clamped between the cutting teeth and the side wall of the U-shaped groove;

a third concave-convex matching structure is arranged at the contact part of the wedge block and the cutting teeth;

a second concave-convex matching structure is arranged at the contact position of the tooth holder and the wedge-shaped block;

the second concave-convex matching structure is connected through the second connecting piece, so that the second connecting piece is connected with the wedge-shaped block and the tooth holder.

In this technical scheme, through set up the wedge between toothholder and cutting tooth to when guaranteeing the connection tightness between cutting tooth and the toothholder, still reduced machining precision and the processing degree of difficulty between the class U-shaped groove of cutting tooth and toothholder. The first connecting piece and the second connecting piece ensure the connection stability and firmness between the cutting teeth and the tooth holder; the space between the first connecting piece and the second connecting piece limits the swing of the cutting tooth between the first connecting piece and the second connecting piece, and the first connecting piece and the second connecting piece are in the left-right direction for convenience of explanation, namely the cutting tooth cannot swing left and right at the moment; more preferably, the concave-convex matching structure between parts (between the cutting teeth and the tooth holder, between the tooth holder and the wedge block, and between the wedge block and the cutting teeth) also effectively limits the back-and-forth swing of the cutting teeth; due to concave-convex matching between parts, the installation clearance of the cutting teeth is further effectively reduced, so that the parts are tightly matched, the impact and abrasion to the U-shaped groove during the operation of the cutting teeth are effectively reduced, and the service life of the tooth holder is prolonged; further, the trimming period of the tooth seat is reduced, and the construction period is ensured.

Further preferred is an adjustment pad for being arranged between the cutting tooth and the wedge block.

In the technical scheme, the machining precision and the installation precision between the cutting teeth and the wedge blocks are greatly reduced due to the existence of the adjusting pad, so that the machining difficulty of the cutting teeth and the wedge blocks is greatly reduced.

Further preferably, the wedge block is provided between the cutting tooth and the second side wall such that the cutting tooth is provided close to the first side wall; the second side wall is sequentially provided with a plurality of first through holes along the extending direction; the wedge-shaped block is provided with a plurality of second through holes at positions corresponding to the plurality of first through holes; the center distance between two adjacent first through holes is larger than the center distance between two adjacent second through holes corresponding to the first through holes; and/or the wedge block comprises a first end connected with the cutting teeth and a second end connected with the tooth holder; the end face of the first end and the end face of the second end are arranged at a second preset angle along the groove depth direction of the U-shaped groove; the second preset angle is approximately equal to the first preset angle.

In the technical scheme, because the center distance of the adjacent first through holes is larger than the center distance of the adjacent two second through holes corresponding to the first through holes, the cutting teeth gradually loosen from an initial tightly-tensioned mounting state (namely, no mounting gap exists among the three) due to the impact and abrasion of the cutting teeth on the wedge-shaped block and the tooth holder along with the extension of the service time of the cutting teeth, and the mounting gap exists among the three; in order to avoid impact and abrasion of the tooth holder, the wedge block and even the cutting teeth due to the existence of the installation gap, at the moment, the wedge block can be pushed towards the groove depth direction of the U-shaped groove, so that the second connecting piece ensures the tight installation state among the tooth holder, the wedge block and even the cutting teeth by penetrating through the first through hole and the second through hole which are closer to the bottom surface of the U-shaped groove and are correspondingly arranged, namely, the tooth holder, the wedge block and the cutting teeth are tightly attached to each other without the installation gap, thereby avoiding the trimming of the tooth holder, ensuring the construction period, greatly ensuring the installation stability of the cutting teeth, reducing the swing of the cutting teeth during working, and ensuring the precision and the efficiency of the rock breaking position of the milling machine; the service life of the tooth holder is greatly prolonged, and the later maintenance cost and the repair cost of the slot milling machine are greatly reduced.

In this technical scheme, first angle and second are preset the angle equal for the tip (namely tank bottom one side) in class U-shaped groove and the tip phase-match of wedge, the tip (namely opening one side) in class U-shaped groove and the tip phase-match of wedge, thereby make realize gapless installation between cutting tooth, wedge and the toothholder three, thereby effectively reduced the damage to this assembly structure because of the existence of installation clearance, and then prolonged this assembly structure's life.

An assembly structure of cutting teeth for a slot milling machine, comprising:

a cutting tooth and a matching component of the cutting tooth for the slot milling machine;

the cutting teeth are accommodated in the U-shaped grooves of the cutting teeth;

the wedge block is clamped between the cutting teeth and the side wall of the U-shaped groove;

a first concave-convex matching structure is arranged at the contact part of the cutting teeth and the tooth holder;

a second concave-convex matching structure is arranged at the contact part of the wedge-shaped block and the tooth holder;

a third concave-convex matching structure is arranged at the contact position of the wedge block and the cutting teeth;

the first concave-convex matching structure is connected through the first connecting piece, so that the cutting teeth and the tooth holder are connected through the first connecting piece;

The second concave-convex matching structure is connected through the second connecting piece, so that the wedge-shaped block is connected with the tooth cutting seat through the second connecting piece.

Further preferably, the second side wall is provided with a plurality of first through holes in sequence along the extending direction; the wedge-shaped block is provided with a plurality of second through holes at positions corresponding to the plurality of first through holes; the center distance between two adjacent first through holes is larger than the center distance between two adjacent second through holes corresponding to the first through holes; and/or, the device further comprises an adjusting pad, wherein the adjusting pad is clamped in the contact gap of the third concave-convex matching structure.

Further preferably, the wedge block includes a first end connected to the cutting tooth and a second end connected to the tooth holder; the end face of the first end and the end face of the second end are arranged at a second preset angle along the groove depth direction of the U-shaped groove; the second preset angle is approximately equal to the first preset angle, and the small end of the wedge-shaped block is arranged close to the bottom surface of the U-shaped groove.

Further preferably, a first groove is formed in the position, corresponding to the first side wall, of the cutting tooth, so that the first side wall is accommodated in the first groove; and/or a second groove is formed in the position, corresponding to the second side wall, of the wedge-shaped block, so that the second side wall is accommodated in the second groove; and/or the wedge block is arranged between the cutting tooth and the second side wall, so that the cutting tooth is arranged close to the first side wall; a third groove is formed in the position, corresponding to the wedge block, of the cutting tooth, so that the end part, close to one side of the cutting tooth, of the wedge block is accommodated in the third groove; and/or, the first concave-convex matching structure is in inclined surface contact connection; and/or, the second concave-convex matching structure is in inclined surface contact connection; and/or, the third concave-convex matching structure is in inclined surface contact connection.

In the technical scheme, one side wall of the U-shaped groove is contained on one side of the cutting tooth, the end part of the wedge block close to one side of the cutting tooth is contained on the other side of the cutting tooth, the other side wall of the U-shaped groove is contained on the end part of the wedge block on the other side of the wedge block, and the tightness of the assembly structure is ensured by concave-convex fit among the three side walls; more preferably, the contact positions of the three parts are all inclined surface contact, so that the contact area between every two of the three parts is enlarged, the stress distribution among the three parts is effectively reduced, the abrasion degree of parts due to the existence of impact force is reduced, and the service life of the parts of the assembly structure is greatly prolonged. More preferably, the mutual clamping between the inclined planes further reduces the swinging of the cutting teeth.

The invention also provides an assembly method of the cutting teeth for the slot milling machine, which comprises the following steps:

s100, connecting a cutting tooth and a tooth holder through a first connecting piece;

s200, connecting the wedge block and the tooth holder through a second connecting piece.

In practical application, in the assembly process, can be earlier with cutting tooth and toothholder preinstallation, the cutting tooth is fixed a position, spacing through first unsmooth cooperation structure to preliminary fixed through first connecting piece both, then insert wedge between class U-shaped groove and the cutting tooth through second unsmooth cooperation structure and the unsmooth cooperation structure of third, make the installation of three closely laminating, with guarantee the zero clearance installation of three, and lock zero clearance installation state through the second connecting piece, thereby guaranteed assembly structure's fastening nature and fastness.

Further preferably, the assembly method of the tooth holder for the slot milling machine further comprises the steps of:

s310, judging whether a contact gap exists between the cutting teeth and the wedge block;

when a contact gap exists between the cutting teeth and the wedge block, executing the steps of:

s320, setting an adjusting pad at a contact gap between the cutting teeth and the wedge block;

when the contact gap between the cutting teeth and the wedge block does not exist, executing the steps of:

s330, no action is performed;

and/or the number of the groups of groups,

the assembling method of the tooth holder for the slot milling machine further comprises the following steps:

s410, judging whether the working state of the cutting teeth meets the preset requirement or not;

When the working state of the cutting teeth does not meet the preset requirement, executing the steps of:

s420, moving the second connecting piece into the other pair of the first through hole and the second through hole which are correspondingly arranged along the groove depth direction of the U-shaped groove;

when the working state of the cutting teeth meets the preset requirement, executing the steps of:

s430, no action is performed.

In the technical scheme, in practical application, when an installation gap exists between the wedge block and the cutting tooth due to machining errors, in order to ensure gapless installation between the wedge block and the cutting tooth, an adjusting pad can be added at the contact gap of the wedge block and the cutting tooth to ensure gapless installation.

The assembly structure of the cutting teeth for the slot milling machine and the matched assembly thereof provided by the invention can bring at least one of the following beneficial effects:

1. according to the invention, the wedge-shaped block is arranged between the tooth holder and the cutting tooth, so that the connection tightness between the cutting tooth and the tooth holder is ensured, and the machining precision and the machining difficulty between the cutting tooth and the U-shaped groove of the tooth holder are reduced. The first connecting piece and the second connecting piece ensure the connection stability and firmness between the cutting teeth and the tooth holder; the space between the first connecting piece and the second connecting piece limits the swing of the cutting tooth between the first connecting piece and the second connecting piece, and the first connecting piece and the second connecting piece are in the left-right direction for convenience of explanation, namely the cutting tooth cannot swing left and right at the moment; more preferably, the concave-convex matching structure between parts (between the cutting teeth and the tooth holder, between the tooth holder and the wedge block, and between the wedge block and the cutting teeth) also effectively limits the back-and-forth swing of the cutting teeth; due to concave-convex matching between parts, the installation clearance of the cutting teeth is further effectively reduced, so that the parts are tightly matched, the impact and abrasion to the U-shaped groove during the operation of the cutting teeth are effectively reduced, and the service life of the tooth holder is prolonged; further, the trimming period of the tooth seat is reduced, and the construction period is ensured.

2. In the invention, the center distance of the adjacent first through holes is larger than the center distance of the adjacent two second through holes corresponding to the first through holes, so that the cutting teeth gradually loosen from an initial tightly-tensioned mounting state (namely, no mounting gap exists among the three) due to the impact and abrasion of the cutting teeth on the wedge-shaped block and the tooth holder along with the extension of the service time of the cutting teeth, and the mounting gap exists among the three; in order to avoid impact and abrasion of the tooth holder, the wedge block and even the cutting teeth due to the existence of the installation gap, at the moment, the wedge block can be pushed towards the groove depth direction of the U-shaped groove, so that the second connecting piece ensures the tight installation state among the tooth holder, the wedge block and even the cutting teeth by penetrating through the first through hole and the second through hole which are closer to the bottom surface of the U-shaped groove and are correspondingly arranged, namely, the tooth holder, the wedge block and the cutting teeth are tightly attached to each other without the installation gap, thereby avoiding the trimming of the tooth holder, ensuring the construction period, greatly ensuring the installation stability of the cutting teeth, reducing the swing of the cutting teeth during working, and ensuring the precision and the efficiency of the rock breaking position of the milling machine; the service life of the tooth holder is greatly prolonged, and the later maintenance cost and the repair cost of the slot milling machine are greatly reduced.

3. In the invention, the machining precision and the installation precision between the cutting teeth and the wedge blocks are greatly reduced by the adjusting pad, so that the machining difficulty of the cutting teeth and the wedge blocks is greatly reduced.

4. In the invention, the first preset angle and the second preset angle are equal, so that the small end (namely the groove bottom side) of the U-shaped groove is matched with the small end of the wedge block, and the large end (namely the opening side) of the U-shaped groove is matched with the large end of the wedge block, thereby realizing gapless installation among the cutting teeth, the wedge block and the tooth holder, effectively reducing the damage to the assembly structure due to the existence of an installation gap, and further prolonging the service life of the assembly structure.

5. In the invention, one side wall of the U-shaped groove is accommodated at one side of the cutting tooth, the end part of one side of the wedge-shaped block close to the cutting tooth is accommodated at the other side of the cutting tooth, the other side wall of the U-shaped groove is accommodated at the end part of the other side of the wedge-shaped block, and the concave-convex fit among the three ensures the tightness of the assembly structure; more preferably, the contact positions of the three parts are all inclined surface contact, so that the contact area between every two of the three parts is enlarged, the stress distribution among the three parts is effectively reduced, the abrasion degree of parts due to the existence of impact force is reduced, and the service life of the parts of the assembly structure is greatly prolonged. More preferably, the mutual clamping between the inclined planes further reduces the swinging of the cutting teeth.

Drawings

The above-mentioned features, technical features, advantages and implementation modes of the assembly structure of the cutting tooth for slot milling machine and its matched components will be further described in a clear and understandable manner with reference to the accompanying drawings.

FIG. 1 is a schematic view showing an example of the assembly structure of a cutter for a slot milling machine according to the present invention;

2-1 in FIG. 2 is a schematic structural view of an embodiment of a tooth holder according to the present invention;

2-2 in FIG. 2 is a schematic view of the A-A cross-sectional structure of 2-1 in FIG. 2;

3-1 in FIG. 3 is a schematic diagram of one embodiment of a wedge block of the present invention;

3-2 in FIG. 3 is a schematic view of the B-B cross-sectional structure of 3-1 in FIG. 3;

fig. 4 is a schematic view of an embodiment of the cutting tooth of the present invention.

Reference numerals illustrate:

1. the tooth holder, 101, U-shaped groove, 102, second side wall, 103, first sub-through hole, 103', second sub-through hole, 103', third sub-through hole, 104, first bevel, 105, first side wall, 106, third through hole, 107, second bevel, 2, second connector, 3, wedge, 301, first end, 302, second end, 303, fourth sub-through hole, 302', fifth sub-through hole, 303', sixth sub-through hole, 304, first V-shaped groove, 4, cutting tooth, 401, second V-shaped groove, 402, fourth through hole, 403, third V-shaped groove, 404, cutting portion, 5, first connector, 6. Adjusting pad.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

For simplicity of the drawing, only the parts relevant to the present invention are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case. In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In this context, up, down, left and right refer to up, down, left and right of the described drawings and do not fully represent practice.

In a first embodiment, as shown in fig. 1 and 2, a tooth holder for a slot milling machine includes: a tooth holder body (not shown in the figure) provided with a U-like groove 101 for accommodating the cutting teeth 4; the U-like shaped channel 101 includes oppositely disposed first and second sidewalls 105, 102; the U-shaped groove is gradually reduced along the groove depth direction; the first side wall 105 is parallel to the groove depth direction of the U-like groove; the second side wall 102 and the first side wall 105 are arranged at a first preset angle; the first side wall 105 is provided with a third through hole 106; the second sidewall 102 is provided with first through holes (i.e., a first sub through hole 103, a second sub through hole 103', and a third sub through hole 103 "). In practical applications, the first through hole is preferably used for connecting the wedge block 3, and the third through hole 106 is preferably used for connecting the cutting tooth 4, that is, the first connecting piece 5 penetrates through the third through hole 106 to connect the cutting tooth 4 and the tooth holder 1, and the second connecting piece 2 penetrates through the first through hole to connect the tooth holder 1 and the wedge block 3. Preferably, the first side wall 105 is provided with at least one third through hole 106, preferably the third through hole 106 is provided near the bottom surface of the U-like shaped groove 101.

In the second embodiment, as shown in fig. 1 to 3, on the basis of the first embodiment, a plurality of first through holes are sequentially arranged along the extending direction of the second side wall. In practical application, in order to ensure that the wedge-shaped block 3 can be pushed along the groove depth direction of the U-shaped groove 101 so as to realize gapless installation among the cutting teeth 4, the tooth holder 1 and the wedge-shaped block 3, the center distance of the adjacent first through holes is larger than the center distance of the adjacent two second through holes corresponding to the adjacently arranged first through holes on the wedge-shaped block 3; preferably, the plurality of first through holes are preferably equally spaced on the second sidewall 102; of course, the first through holes may be disposed at non-equal intervals, and may be disposed according to actual needs. Preferably, the third through hole 106 is provided near the bottom surface of the U-like shaped groove 101.

In the third embodiment, as shown in fig. 1 to 3, on the basis of the first or second embodiment, both the first side wall and the second side wall are V-shaped structures; the tip of the first sidewall 105 (i.e., the first chamfer 104 and the second chamfer 107) is disposed toward the cutting tooth; the tips of the second side wall 102 (i.e., the first ramp 104 and the second ramp 107) are disposed toward the wedge. Because the second side wall 102 is of an inclined structure, the circle center connecting lines of the first through holes should be parallel to the second side wall 102 at this time, and of course, when the second side wall 102 is parallel to the groove depth direction of the U-shaped groove 101, the circle center connecting lines of the first through holes are also parallel to the second side wall 102, and the circle center connecting lines of the first through holes are parallel to the groove depth direction. In practical application, in order to make the wedge-shaped block 3 better match with the second side wall 102, the included angle formed by the end surface of the second end of the wedge-shaped block 3 matching with the second side wall 102 and the end surface of the first end of the wedge-shaped block 3 matching with the cutting tooth 4 is approximately equal to the included angle formed by the first side wall 105 and the second side wall 102 of the U-shaped groove 101, and in the practical installation process, the small end of the wedge-shaped block 3 is arranged near the bottom surface of the U-shaped groove 101. Preferably, the first preset angle is 0.5 to 15 °.

In a fourth embodiment, as shown in fig. 1 to 4, a kit of cutting teeth for a slot milling machine, includes: the tooth holder 1, the wedge block 3, the first connecting piece 5 and the second connecting piece 2 according to any one of the above; the first connecting piece 5 is used for connecting the cutting teeth 4 and the tooth holder 1; the second connecting piece 2 is used for connecting the wedge block 3 and the cutting teeth 4; the tooth holder 1 is provided with a U-shaped groove 101 for accommodating the cutting teeth 4; the wedge-shaped block 3 is clamped between the cutting teeth 4 and the side wall of the U-shaped groove 101; a third concave-convex matching structure is arranged at the contact position of the tooth holder 1 and the cutting teeth 4; a second concave-convex matching structure is arranged at the contact position of the tooth holder 1 and the wedge-shaped block 3; the second concave-convex matching structure is connected through the second connecting piece 2, so that the wedge-shaped block 3 and the tooth holder 1 are connected through the second connecting piece 2. It should be noted that, when the second connecting portion is in a convex structure, the cutting tooth 4 is correspondingly provided with a groove structure; when the contact part (i.e., the first end) of the wedge-shaped block 3 and the cutting tooth 4 is in a groove structure, the cutting tooth 4 is correspondingly provided with a convex structure. When the contact part (i.e. the first side wall 105) of the tooth holder 1 and the cutting tooth 4 is of a convex structure, the wedge-shaped block 3 is correspondingly provided with a groove structure; when the contact part (i.e., the first side wall 105) of the tooth holder 1 and the cutting tooth 4 is in a groove structure, the wedge block 3 is correspondingly provided with a protruding structure. The same applies to other male and female mating structures. Preferably, the side wall of the U-shaped groove 101 is of a V-shaped structure and comprises a first inclined plane 104 and a second inclined plane 107, the first inclined plane 104 and the second inclined plane 107 are connected at the tip of the V-shaped structure, the tip of the V-shaped structure is arranged towards the inner space of the U-shaped groove 101, and preferably, the first through hole is arranged on the inclined side (namely the first inclined plane 104 and the second inclined plane 107) of the V-shaped structure. Further preferably, the first through hole is provided on the hypotenuse of the second sidewall 102 provided right; preferably, the second end 302 of the wedge 3, which is in a concave-convex fit with the second side wall 102, is a first V-shaped groove 304, such that the first V-shaped groove 304 fits with the V-shaped side wall of the U-shaped groove 101; preferably, the first end 301 of the wedge-shaped block 3, which is matched with the cutting tooth 4, has a V-shaped structure, and correspondingly, both sides of the cutting tooth 4 are V-shaped grooves.

In the fifth embodiment, as shown in fig. 1 to 4, on the basis of the fourth embodiment, the wedge block 3 is provided between the cutting tooth 4 and the second side wall 102 such that the cutting tooth 4 is provided near the first side wall 105; the second sidewall 102 is provided with a plurality of first through holes (i.e., a first sub through hole 103, a second sub through hole 103', and a third sub through hole 103') in order along its own extension direction; the wedge-shaped block 3 is provided with a plurality of second through holes (namely a fourth sub through hole 303, a fifth sub through hole 303 'and a sixth sub through hole 303') at positions corresponding to the first through holes; the center distance between two adjacent first through holes is larger than the center distance between two adjacent second through holes corresponding to the first through holes. 1-3, the groove depth direction along the U-like groove 101 is defined as an up-down direction, wherein the opening of the U-like groove 101 is arranged near the upper side, and the bottom surface of the U-like groove 101 is arranged near the lower side; the first side wall 105 of the U-shaped groove 101 is arranged near the left side, the second side wall 102 of the U-shaped groove 101 is arranged near the right side, and the second side wall 102 is sequentially provided with a first sub through hole 103, a second sub through hole 103' and a third sub through hole 103″ along the extending direction of the second side wall 102; correspondingly, the right end (i.e. the second end 302) of the wedge-shaped block 3 is provided with a fourth sub-through hole 303, a fifth sub-through hole 303' and a sixth sub-through hole 303″ in sequence along the extending direction thereof; wherein the center distance between the first sub-through hole 103 and the second sub-through hole 103 'is L1, the center distance between the second sub-through hole 103' and the third sub-through hole is L2, and the center distance between the first sub-through hole 103 and the third sub-through hole 103″ is L3; the center distance between the fourth sub-through hole 303 and the fifth sub-through hole 303 'is T1, the center distance between the fifth sub-through hole 303' and the sixth sub-through hole 303″ is T2, and the center distance between the fourth sub-through hole 303 and the sixth sub-through hole 303″ is T3; thus, L1 > T1, L2 > T2, and L3 > T3, as known from the inequality algorithm.

In practical applications, preferably, the first sub-through hole 103 and the fourth sub-through hole 303 are correspondingly configured through hole groups, the second sub-through hole 103 'and the fifth sub-through hole 303' are correspondingly configured through hole groups, and the third sub-through hole 103 "and the sixth sub-through hole 303" are correspondingly configured through hole groups; namely, the initial installation state of the assembly structure is as follows: the second connecting piece 2 sequentially penetrates through the first sub through hole 103 and the fourth sub through hole 303 so as to realize connection of the wedge-shaped block 3 and the tooth holder 1 (at this time, the second sub through hole 103 'and the fourth through hole 402, the third sub through hole 103 "and the sixth sub through hole 303" are all in an unconnected state, namely, the central axis of the second sub through hole 103' and the central axis of the fourth through hole 402, the central axis of the third sub through hole 103 "and the central axis of the sixth sub through hole 303" are all in a different coaxial state); and when the cutting tooth 4 receives the impact, because the cutting tooth 4 has been installed on the toothholder 1 through first connecting piece 5, and toothholder 1 is fixed on the milling wheel, therefore, this assembly structure is in the use, second connecting piece 2 can exert the pretightning force to wedge 3, and the pretightning force of second connecting piece 2 can force wedge 3 to the bottom surface motion of U-shaped groove 101 like, thereby guaranteed the tightness of this assembly structure in the use, thereby guarantee to be the zero clearance installation between the spare part of this assembly structure, consequently, when one of them through-hole group is in connected state, along the groove depth direction of U-shaped groove 101, the distance of the central axis of first through-hole and second through-hole in the through-hole group is progressively greater. However, with the extension of the service time of the assembly structure, due to the impact of the operation process of the cutting teeth 4, the assembly structure has a mounting gap, so that the loose phenomenon occurs between the parts of the assembly structure, and at this time, the pretightening force of the second connecting piece 2 between the first sub through hole 103 and the fourth sub through hole 303 to the wedge block 3 is zero, so that the service life of the assembly structure is prolonged, and the fit between the parts of the assembly structure needs to be ensured; at this time, the wedge-shaped block 3 may be moved toward the bottom surface of the U-shaped groove 101 such that the second sub through hole 103 'and the fifth sub through hole 303' are connected by the second connecting member 2 previously used to connect the first sub through hole 103 and the fourth sub through hole 303 (at this time, the first sub through hole 103 and the fourth sub through hole 303, the third sub through hole 103″ and the sixth sub through hole 303″ are all not connected), and at this time, the second connecting member 2 located at the second sub through hole 103 'and the fifth sub through hole 303' may continuously apply a pre-tightening force to the wedge-shaped block 3. Along with the extension of the service time of the assembly structure, the second connecting piece 2 is sequentially moved along the groove depth direction of the U-shaped groove 101, so that the assembly structure can be maintained within the allowable value of one installation gap all the time. In practical application, the number of the first through holes can be more than two, and similarly, the number of the second through holes can be more than two, and the number of the first through holes and the number of the second through holes can be in a one-to-one correspondence relationship, or in a one-to-many relationship, that is, more than one second through hole is correspondingly arranged in one first through hole. The first through holes can be distributed at equal intervals or at unequal intervals. It is further preferable that when one of the through-hole groups is in the connected state, at least a pair of the through-hole groups which are not coaxially arranged have a pitch of the central axes (i.e., the pitch of the central axes of the first through-hole and the central axes of the second through-hole is preferably equal to or smaller than the radius of the first through-hole and the second through-hole).

In the sixth embodiment, as shown in fig. 1 to 4, on the basis of the fourth or fifth embodiment, the U-like groove 101 is tapered in the groove depth direction thereof, and the first side wall 105 is parallel to the groove depth direction of the U-like groove 101; the first side wall 105 and the second side wall 102 are arranged at a first preset angle; the wedge block 3 comprises a first end 301 connected with the cutting tooth 4 and a second end 302 connected with the tooth holder 1; the first end 301 and the second end 302 are arranged at a second preset angle along the groove depth direction of the U-shaped groove 101; the first predetermined angle is approximately equal to the second predetermined angle. Preferably, the first side wall 105 extends in the up-down direction, the left and right side walls of the cutting tooth 4 also extend in the up-down direction, the second side wall 102 is an inclined wall, and the end of the second side wall 102 near the opening end of the U-shaped groove 101 is inclined towards the right side; therefore, the first preset angle and the second preset angle form an included angle which is an actual face; that is, the first preset angle is an included angle between the left and right inner wall surfaces of the U-shaped groove 101, and the second preset angle is an included angle between the end surface of the first end 301 and the end surface of the second end 302 of the wedge-shaped block 3. Because the first preset angle and the second preset angle are approximate (including that the first preset angle is equal to the second preset angle, and the absolute value of the difference value of the first preset angle and the second preset angle is in the preset value range, if the preset range value is greater than zero and not greater than 5 degrees), the verticality of the cutting tooth 4 is ensured, and the suitability and the clamping degree of the assembly structure during installation are also ensured. Preferably, the cutting portion 404 of the cutting tooth 4 is disposed adjacent to the first sidewall 105.

In a seventh embodiment, as shown in fig. 1 to 4, an assembly structure of a cutting tooth for a slot milling machine includes: a cutting tooth 4 and a mating assembly of a cutting tooth for a slot milling machine as described in any one of the preceding claims; the tooth holder 1 is provided with a U-shaped groove 101 for accommodating the cutting teeth 4; the wedge-shaped block 3 is clamped between the cutting teeth 4 and the side wall of the U-shaped groove 101; a first concave-convex matching structure is arranged at the contact position of the cutting teeth 4 and the tooth holder 1; the contact part of the wedge-shaped block 3 and the tooth holder 1 is provided with a second concave-convex matching structure; a third concave-convex matching structure is arranged at the contact position of the wedge-shaped block 3 and the cutting teeth 4; the first concave-convex matching structure is connected through a first connecting piece 5, so that the cutting teeth 4 and the tooth holder 1 are connected through the first connecting piece 5; the second concave-convex matching structure is connected through the second connecting piece 2, so that the wedge-shaped block 3 and the tooth holder 1 are connected through the second connecting piece 2.

In practical application, in the assembly process, cutting tooth 4 and toothholder 1 can be preinstalled first, cutting tooth 4 is fixed a position, spacing through first unsmooth cooperation structure to preliminary fixed through first connecting piece 5 two, then insert wedge 3 between class U-shaped groove 101 and cutting tooth 4 through second unsmooth cooperation structure and third unsmooth cooperation structure, make the installation of closely laminating of three, with guarantee the zero clearance installation of three, and lock zero clearance installation state through second connecting piece 2, thereby guaranteed assembly structure's fastness and fastness. More preferably, the concave-convex matching structure between parts (between the cutting teeth 4 and the tooth holder 1, between the tooth holder 1 and the wedge block 3, and between the wedge block 3 and the cutting teeth 4) also effectively limits the back-and-forth swing of the cutting teeth 4; and because of concave-convex matching among parts, the installation clearance of the cutting teeth 4 is further effectively reduced, so that the parts are tightly matched.

In the eighth embodiment, as shown in fig. 1 to 4, on the basis of the seventh embodiment, the device further includes an adjusting pad 6, where the adjusting pad 6 is clamped in the contact gap of the third concave-convex matching structure; since the contact of the relief-fit structure is a surface-to-surface contact, the shim 6 is preferably of a sheet-like structure and has a stiffness less than that between the cutting teeth 4 and/or the wedge 3. It should be noted that, in practical application, the wedge block 3 has a strip structure, so that the wedge block 3 is conveniently inserted between the wedge block 3 and the cutting teeth 4, and the whole assembly process is conveniently and smoothly carried out. In practical application, the wedge block 3 may be only disposed at a contact position between the cutting tooth 4 and the tooth holder 1, that is, the cutting tooth 4 and the wedge block 3 are sequentially contained in the U-shaped groove 101 along one direction, as shown in fig. 1, and the cutting tooth 4 and the wedge block 3 are sequentially disposed in the U-shaped groove 101 from left to right. Of course, the cutting teeth 4 and the wedge 3 are disposed in the U-like groove 101 in this order from right to left. The wedge blocks 3 can also be arranged at two contact positions of the cutting teeth 4 and the tooth holder 1, namely, two wedge blocks 3 are respectively arranged at the left side and the right side of the cutting teeth 4. It should be noted that the first connecting piece 5 and the second connecting piece 2 sequentially penetrate along the surface perpendicular to the tooth holder 1 (i.e. the U-shaped surface similar to the U-shaped groove 101) at the contact position of the cutting tooth 4, the tooth holder 1 and the wedge block 3 in pairs so as to realize the pairwise connection between the three; preferably, the first connecting piece 5 and the second connecting piece 2 are respectively arranged on two side walls of the U-shaped groove 101, and more preferably, two-by-two detachable connection between the first connecting piece 5 and the second connecting piece 2 can be used. The first connecting member 5 and the second connecting member 2 may be the same or different connecting members, such as bolts, screws, pins, screws, etc., and even the first connecting member 5 and the second connecting member 2 are preferably elastic members, and may be solid or hollow columnar connecting members; when the first and second connection members 5, 2 are elastic pins, the elastic pins are preferably interference fit with the corresponding through holes (i.e. the first, second, third, fourth, fifth, sixth, third, and third sub through

holes

103, 103', 103", 106", 303", 402).

In a ninth embodiment, as shown in fig. 1-4, on the basis of the seventh or eighth embodiment, the U-shaped groove 101 includes a first side wall 105 and a second side wall 102 that are disposed opposite to each other; the wedge 3 is arranged between the cutting tooth 4 and the second side wall 102 such that the cutting tooth 4 is arranged close to the first side wall 105; the second side wall 102 is provided with a plurality of first through holes in sequence along the extending direction of the second side wall; the wedge-shaped block 3 is provided with a plurality of second through holes corresponding to the plurality of first through holes; the center distance between two adjacent first through holes is larger than the center distance between two adjacent second through holes corresponding to the first through holes. It should be noted that, the center-to-center distance herein refers to a straight line distance between central axes of the first through hole and the second through hole. 1-3, the groove depth direction along the U-like groove 101 is defined as an up-down direction, wherein the opening of the U-like groove 101 is arranged near the upper side, and the bottom surface of the U-like groove 101 is arranged near the lower side; the first side wall 105 of the U-shaped groove 101 is arranged near the left side, the second side wall 102 of the U-shaped groove 101 is arranged near the right side, and the tooth holder 1 is sequentially provided with a first sub through hole 103, a second sub through hole 103' and a third sub through hole 103″ along the groove depth direction of the U-shaped groove 101 at the second side wall 102; correspondingly, the wedge-shaped block 3 is sequentially provided with a fourth sub through hole 303, a fifth sub through hole 303' and a sixth sub through hole 303″ at the right end (i.e., the second end 302) along the groove depth direction of the U-shaped groove 101; wherein the center distance between the first sub-through hole 103 and the second sub-through hole 103 'is L1, the center distance between the second sub-through hole 103' and the third sub-through hole is L2, and the center distance between the first sub-through hole 103 and the third sub-through hole 103″ is L3; the center distance between the fourth sub-through hole 303 and the fifth sub-through hole 303 'is T1, the center distance between the fifth sub-through hole 303' and the sixth sub-through hole 303″ is T2, and the center distance between the fourth sub-through hole 303 and the sixth sub-through hole 303″ is T3; thus, L1 > T1, L2 > T2, and L3 > T3, as known from the inequality algorithm.

It should be noted that the number of the first through holes may be one or more, and the number of the second through holes may be a plurality; in this case, the assembly mode of the first through hole and the second through hole may be opposite to the above-mentioned assembly mode (i.e., the first through hole and the second through hole near the opening end of the U-shaped groove 101 are connected and sequentially matched towards the groove depth direction of the U-shaped groove 101), but the second through hole near the bottom surface of the U-shaped groove 101 is matched with the first through hole near the opening end of the U-shaped groove 101; also, with the use of the present assembly structure, the wedge-shaped block 3 moves toward the bottom surface of the U-shaped groove 101, so that the second through hole located above and the first through hole matched with the second through hole located below are matched for use, thereby realizing the gapless installation of the present assembly structure. Therefore, at this time, the number relationship between the first through holes and the second through holes may be a one-to-many relationship; a many-to-many relationship is also possible. Such a mounting means should also fall within the scope of the present invention; however, this mounting is based on the fact that the mounting of the wedge 3 does not affect the use of the cutting tooth 4.

In embodiment ten, as shown in fig. 1 to 4, on the basis of embodiment seven, eight or nine, the U-like shaped groove 101 is tapered in the groove depth direction thereof, and includes a first side wall 105 and a second side wall 102 which are disposed opposite to each other; the first side wall 105 and the second side wall 102 are arranged at a first preset angle; the wedge block 3 comprises a first end 301 connected with the cutting tooth 4 and a second end 302 connected with the tooth holder 1; the first end 301 and the second end 302 are arranged at a second preset angle along the groove depth direction of the U-shaped groove 101; the first predetermined angle is approximately equal to the second predetermined angle, and the small end of the wedge-shaped block 3 is disposed near the bottom surface of the U-shaped groove 101. Preferably, the cutting teeth 4 and the wedge-shaped blocks 3 are sequentially arranged in the U-shaped groove 101 from left to right, wherein the first side wall 105 extends along the up-down direction, the left side wall and the right side wall of the cutting teeth 4 also extend along the up-down direction, the second side wall 102 is an inclined wall, and the end part of the second side wall 102 close to the opening end of the U-shaped groove 101 is inclined towards the right side; therefore, the first preset angle and the second preset angle form an included angle which is an actual face; that is, the first preset angle is an included angle between the left and right inner wall surfaces of the U-shaped groove 101, and the second preset angle is an included angle between the end surface of the first end 301 and the end surface of the second end 302 of the wedge-shaped block 3. Because the first preset angle and the second preset angle are approximate (including that the first preset angle is equal to the second preset angle, and the absolute value of the difference value of the first preset angle and the second preset angle is in the preset value range, if the preset range value is greater than zero and not greater than 5 degrees), the verticality of the cutting tooth 4 is ensured, and the suitability and the clamping degree of the assembly structure during installation are also ensured. Preferably, the cutting portion 404 of the cutting tooth 4 is disposed adjacent to the first sidewall 105.

In an eleventh embodiment, as shown in fig. 1-4, on the basis of the seventh, eighth, ninth, or tenth embodiment, the U-like shaped groove 101 includes a first side wall 105 and a second side wall 102 that are disposed opposite to each other; the cutting teeth 4 are provided with first grooves at positions corresponding to the first side walls 105, so that the first side walls 105 are accommodated in the first grooves; the wedge 3 is arranged between the cutting tooth 4 and the second side wall 102 such that the cutting tooth 4 is arranged close to the first side wall 105; the wedge-shaped block 3 is provided with a second groove at a position corresponding to the second side wall 102, so that the second side wall 102 is accommodated in the second groove; the position of the cutting tooth 4 corresponding to the wedge-shaped block 3 is provided with a third groove, so that the end part (i.e. the first end 301) of the wedge-shaped block 3, which is close to one side of the cutting tooth 4, is accommodated in the third groove, preferably, the side wall of the U-shaped groove 101 is of a V-shaped structure, and comprises a first inclined plane 104 and a second inclined plane 107, the first inclined plane 104 and the second inclined plane 107 are connected at the tip end of the V-shaped structure, the tip end of the V-shaped structure faces the inner space of the U-shaped groove 101, and preferably, the first through hole is formed in the inclined side edge (i.e. the first inclined plane 104 and the second inclined plane 107) of the V-shaped structure. Further preferably, the first through hole is provided on the hypotenuse of the second sidewall 102 provided right; preferably, the second groove in concave-convex engagement with the second sidewall 102 is a first V-shaped groove 304; so that the first V-shaped groove 304 fits the V-shaped side wall of the U-shaped groove 101; preferably, the second side wall 102 is further provided with at least one third through hole for mounting the first connecting member 5, preferably the third through hole is provided near the bottom surface of the U-like shaped groove 101. Preferably, the first groove and the third groove on the left and right sides of the cutting tooth 4 are V-shaped grooves, that is, the first groove is a third V-shaped groove 403, the third groove is a second V-shaped groove 401, and the first end 301 of the wedge-shaped block 3 is a V-shaped structure, so that the wedge-shaped block is well matched with the third V-shaped groove 403. It should be noted that, the matching manner of the first concave-convex matching structure, the second concave-convex matching structure and the third concave-convex matching structure is not limited to the above manner, and may be opposite or partially opposite to the above adaptation manner, which is not described here in detail.

In a twelfth embodiment, a method for assembling a cutting tooth for a slot milling machine includes the steps of:

In this embodiment, in the assembly process, can be earlier with cutting tooth and toothholder pre-installation, the cutting tooth is fixed a position, spacing through first unsmooth cooperation structure to preliminary fixed through first connecting piece both, then insert wedge between class U-shaped groove 101 and the cutting tooth through second unsmooth cooperation structure and the unsmooth cooperation structure of third, make the installation of three closely laminating, with guarantee the zero clearance installation of three, and lock zero clearance installation state through the second connecting piece, thereby guaranteed assembly structure's tightness and fastness. More preferably, the concave-convex matching structure between parts (between the cutting teeth and the tooth holder, between the tooth holder and the wedge block, and between the wedge block and the cutting teeth) also effectively limits the back-and-forth swing of the cutting teeth; and because of concave-convex matching between parts, the installation clearance of the cutting teeth is further effectively reduced, so that the parts are tightly matched.

In the thirteenth embodiment, on the basis of the twelfth embodiment, the method further includes the steps of:

s330, no action is performed.

In the embodiment, one or more thin-plate-shaped adjusting pads can be adaptively inserted between the cutting teeth with machining errors and the wedge blocks to ensure the gapless installation of the assembly structure, so that the service life of parts is prolonged.

In an embodiment fourteenth, on the basis of the twelfth or thirteenth embodiment, the method further includes the steps of:

s430, no action is performed.

In the embodiment, the mounting position of the second connecting piece is adjusted to ensure the zero-clearance mounting guarantee of the parts of the assembly structure in the use process, so that the service life of the assembly structure is prolonged, and the later maintenance cost of the assembly structure is reduced; and the construction period is ensured.

It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. A mating assembly of cutting teeth for a slot milling machine, comprising:

the tooth holder comprises a tooth holder body, wherein the tooth holder body is provided with a U-like groove for accommodating cutting teeth;

the first side wall is provided with a third through hole;

the second side wall is provided with a first through hole;

the device also comprises a wedge block, a first connecting piece and a second connecting piece;

the second concave-convex matching structure is connected through the second connecting piece, so that the second connecting piece is connected with the wedge-shaped block and the tooth holder;

the wedge block is arranged between the cutting teeth and the second side wall, so that the cutting teeth are arranged close to the first side wall;

the second side wall is sequentially provided with a plurality of first through holes along the longitudinal extending direction of the second side wall;

the wedge-shaped block is provided with a plurality of second through holes at positions corresponding to the plurality of first through holes;

the center distance between two adjacent first through holes is larger than the center distance between two adjacent second through holes corresponding to the first through holes;

the wedge block comprises a first end connected with the cutting teeth and a second end connected with the tooth holder;

the end face of the first end and the end face of the second end are arranged at a second preset angle along the groove depth direction of the U-shaped groove;

the second preset angle is approximately equal to the first preset angle.

2. The cutter head assembly for a slot milling machine of claim 1, wherein:

The first side wall and the second side wall are both of V-shaped structures; the tip of the first sidewall is disposed toward the cutting tooth; the tip of the second sidewall is disposed toward the cutting tooth.

3. The cutter head assembly for a slot milling machine of claim 1, wherein:

the value of the first preset angle is 0.5-15 degrees.

4. The cutter head assembly for a slot milling machine of claim 1, further comprising:

an adjustment pad for positioning between the cutting tooth and the wedge block.

5. The utility model provides an assembly structure of cutting tooth for slot milling machine which characterized in that includes:

a kit of cutting teeth and the cutter teeth for a slot milling machine of claim 1;

The second concave-convex matching structure is connected through the second connecting piece, so that the wedge-shaped block is connected with the tooth holder through the second connecting piece.

6. The assembly structure of a cutting tooth for a slot milling machine according to claim 5, wherein:

the device further comprises an adjusting pad which is clamped in the contact gap of the third concave-convex matching structure.

7. The assembly structure of a cutting tooth for a slot milling machine according to claim 6, wherein:

the second preset angle is approximately equal to the first preset angle, and the small end of the wedge-shaped block is arranged close to the bottom surface of the U-shaped groove.

8. The assembly structure of a cutting tooth for a slot milling machine according to claim 7, wherein:

a first groove is formed in the position, corresponding to the first side wall, of the cutting tooth, so that the first side wall is accommodated in the first groove;

a second groove is formed in the position, corresponding to the second side wall, of the wedge-shaped block, so that the second side wall is accommodated in the second groove;

a third groove is formed in the position, corresponding to the wedge block, of the cutting tooth, so that the end part, close to one side of the cutting tooth, of the wedge block is accommodated in the third groove;

the first concave-convex matching structure is in inclined surface contact connection;

the second concave-convex matching structure is in inclined surface contact connection;

the third concave-convex matching structure is in inclined surface contact type connection.

9. A method of assembling a cutting tooth for a slot milling machine, the method being applied to the structure for assembling a cutting tooth for a slot milling machine according to any one of claims 6 to 8, comprising the steps of:

10. The method for assembling a cutting tooth for a slot milling machine according to claim 9, wherein:

the method for assembling the cutting teeth for the slot milling machine further comprises the following steps:

s330, no action is performed;

and/or the number of the groups of groups,

s430, no action is performed.