CN217118625U - Fixed collet of dental cast, dental cast subassembly, frock subassembly, be used for marking machine of dental cast - Google Patents

Abstract

The utility model discloses a collet, dental model subassembly, frock subassembly, the marking machine that is used for the dental model are fixed to the dental model. Wherein the die fixing base includes: the bottom support is connected to the tool of the marking machine in a sliding manner; the positioning convex part is arranged on one surface of the bottom support connected with the dental cast and is matched with a positioning groove which is arranged at the bottom of the dental cast and used for marking the marking position of the dental cast so as to fix the dental cast; wherein, the collet includes: collet body and locating piece, locating piece fixed connection are in one side that the collet body is close to the slide of frock, and one side that the locating piece is close to the slide lateral wall of frock is equipped with the spacing groove, and when the collet removed to predetermined mark station, the spacing groove was close to the spacing arch of slide, goes into until by spacing protruding card, is located to mark the station with the collet. Through setting up the location convex part of being connected with the dental cast, with the constant head tank cooperation that mark position was beaten to the mark on the dental cast, when realizing fixed dental cast, will rescue the ware and beat the mark position and fix in the preset position that corresponds the location convex part, promote the degree of automation of beating the mark process.

Description

Fixed collet of dental cast, dental cast subassembly, frock subassembly, be used for marking machine of dental cast

Technical Field

The utility model belongs to the technical field of the tooth is rescued, more exactly say and relate to the tooth and rescue ware manufacturing technology, especially relate to a collet, dental model subassembly, frock subassembly are fixed to the dental cast, be used for the marking machine of tooth jaw model.

Background

The shell-shaped tooth appliance is a device for treating malocclusion, adopts safe elastic transparent high polymer materials, and ensures that the appliance process is almost finished without the awareness of other people. In the marking process of the shell-shaped dental appliance, a predetermined mark needs to be marked at a specific position of the dental appliance.

At present, in the marking process of the shell-shaped tooth appliance, although a full-automatic marking line operated by a manipulator exists, in the customized manufacturing process of the appliance, the full-automatic marking line is mainly operated manually or semi-manually, an operator places a product on a marking platform to control the marking laser to emit light, and judges whether the light emitting position of the marking laser is in a marking area of the appliance or not by human eyes, so that the processing efficiency of the operator is low, the requirement on the operation time of the operator is high, the marking position is easy to shift, reworking is carried out, the production beat is wasted, the later delivery time is increased, the laser has strong radiation damage to the human eyes, people are blinded due to long-term operation, the skin is aged, and risks exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem overcome the defect that exists among the prior art, provide a fixed collet of dental cast, dental cast subassembly, frock subassembly, be used for the marking machine of tooth jaw model, realize beating the quick accurate location to fixed collet in the mark process to fix a mark position to the needs of correcting the ware are beaten to quick location, and are quick accurate, realize more accurate beating the mark.

The utility model discloses embodiment provides a collet is fixed to dental cast, include: the bottom support is connected to the tool of the marking machine in a sliding manner; the positioning convex part is arranged on one surface of the bottom support connected with the dental cast and is matched with a positioning groove which is arranged at the bottom of the dental cast and used for marking the marking position of the dental cast so as to fix the dental cast; wherein, the collet includes: collet body and locating piece, locating piece fixed connection be in the collet body is close to one side of the slide of frock, the locating piece is close to one side of the slide lateral wall of frock is equipped with the spacing groove the collet is when beating the mark station removal to predetermineeing, the spacing groove is close to the spacing arch of slide is until quilt spacing protruding card is gone into, is located the collet beat the mark station.

The utility model discloses embodiment still provides a dental cast subassembly, include: the dental model, and the dental model fixing bottom support; the bottom that the die corresponds with the mark position of beating is equipped with the constant head tank, the constant head tank with the cooperation of the location convex part on the fixed collet of die, in order to fix on the fixed collet of die the die.

The utility model discloses embodiment still provides a frock subassembly, include: slide frock and the fixed collet of dental cast as above, the fixed collet sliding connection of dental cast in on the slide frock the collet when moving to the mark station of predetermineeing, the spacing groove is close to the spacing arch of slide until quilt spacing protruding card is gone into, is located the collet beat mark station.

The utility model discloses embodiment still provides a marking machine for tooth jaw model, include: the marking assembly, the material pushing cylinder and the tool assembly are arranged on the base; the tool assembly and the marking assembly are respectively fixed on the mounting table, the material pushing cylinder is arranged on one side of the tool assembly and used for pushing a dental model fixing bottom support in the tool assembly to move along a slide way in the tool assembly until the limiting protrusion on the slide way is clamped into the limiting groove in the dental model fixing bottom support, and the dental model fixing bottom support is positioned at the marking station; the marking assembly is used for marking the dental model positioned on the dental model fixing support of the marking station.

Compared with the prior art, the utility model discloses the fixed collet of dental cast among the embodiment has following advantage and positive effect: through setting up the location convex part of being connected with the dental cast, with the constant head tank cooperation that mark position was made to the mark on the dental cast, when realizing fixed dental cast, will rescue the mark position of beating of ware and fix the preset position at corresponding location convex part. In addition, the positioning block can quickly slide to a preset position in the marking process by utilizing the matching of the limiting groove of the positioning block close to the side wall of the tool slide way of the marking machine and the limiting protrusion on the slide way, so that the tooth die on the fixed bottom support can be quickly positioned to a marking area.

Further, the positioning convex part comprises a positioning pin which is detachably connected to the bottom support. The locating pin of connection can be dismantled in the adoption, and the locating pin of being convenient for can adopt the mode of subassembly assembly to fix on the collet, reduces the die sinking cost of collet.

Further, the positioning pin is in threaded connection with the bottom support. Do benefit to the threaded connection mode for the connection of locating pin and collet is more firm, when separation tooth mould and collet, is difficult for the locating pin that tears down.

Further, the positioning pin is an external thread positioning pin. When the positioning pin adopts external threads, the processing of the bottom support is convenient.

Furthermore, one side that the locating piece is close to the slide lateral wall of frock is equipped with the guiding groove the collet when moving to predetermined mark station of beating, the spacing arch process of slide the guiding groove gets into the spacing groove. The guiding groove is adopted to reduce the friction force between the positioning block and the slideway, so that the sliding of the fixing base in the slideway is facilitated.

Furthermore, the number of the limiting grooves is two, a concave part is arranged between the two limiting grooves, and the length of the concave part in the sliding direction of the tooth mould fixing bottom support on the slide way is smaller than the distance between the two limiting grooves. Adopt two spacing grooves, and the depressed part between two spacing grooves, when increasing spacing groove screens effect, reduce the frictional force when the collet slides.

Further, the shoe body is made of a first material, the positioning block is made of a second material, and the hardness of the second material is greater than that of the first material. Adopt the different material preparation collet body and the locating piece of two kinds of hardnesses, can increase the hardness of the part of frequent friction on the collet on the one hand, long when increasing the use of collet, on the other hand adopts the lower material of hardness to do the collet body, reduces holistic manufacturing cost.

Further, the second material is a wear-resistant metal. Adopt wear-resisting metal can strengthen the wearability of locating piece, because in the processing, the locating piece is more with slide friction number of times, so make wear-resisting material preparation locating piece difficult wearing and tearing, it is long when effectively prolonging the use of collet.

Further, the first material is plastic. Adopt plastics preparation collet body for when reducing collet body cost of manufacture, realize that collet weight is lighter, do benefit to processes such as possible transportation transmits.

Further, the bottom support body is connected with the positioning block through screws. Through screwed connection collet body and locating piece for connection between them is more firm stable.

Furthermore, one side of the bottom support, which is far away from the positioning block, is provided with an error-proofing groove so as to limit the placing direction of the bottom support in the slide way. Adopt one side to have the design in mistake proofing groove for when the collet was placed at the slide, whether can confirm rapidly that the direction of placing is accurate, reduce artifical judgement, effectively increase production procedure put efficiency.

Further, the bottom support is provided with a top tooth mold groove used for the lower tooth mold, and the top tooth mold groove is arranged close to the positioning convex part. The top tooth mould groove is arranged at a position close to the positioning pin, so that the ejection force of the lower tooth mould is reduced conveniently.

Furthermore, a limiting bulge on the slide way tool is a ball plunger. The ball plunger is used as a limiting protrusion on the slide way tool, so that the cost for realizing the limiting protrusion is lower, and the limiting protrusion is more stably clamped with the bottom support.

Drawings

Fig. 1 is a schematic view of a dental cast fixing base in a first embodiment of the present invention;

fig. 2 is a schematic view of a tool assembly according to a first and a fifth embodiments of the present invention;

FIG. 3 is a schematic view of a dental cast according to a first embodiment of the present invention;

fig. 4 is a schematic view of a dental model fixing base in a second embodiment of the present invention;

FIG. 5 is a schematic view of another dental cast fixing base in a second embodiment of the present invention;

FIG. 6 is a schematic view of another dental cast fixing base in a second embodiment of the present invention;

fig. 7 is a schematic view of a dental model fixing base in a third embodiment of the present invention;

fig. 8 is a plan view of a positioning block in a dental cast fixing base according to a third embodiment of the present invention;

fig. 9 is a schematic view of a bottom bracket body in a dental cast fixing base according to a third embodiment of the present invention;

fig. 10 is a schematic view of another dental cast fixing base in a third embodiment of the present invention;

fig. 11 is a schematic view of a marking machine for dental models according to a sixth embodiment of the present invention.

Detailed Description

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It should be apparent that the drawings in the following description are only examples of the present invention, and the embodiments and features of the embodiments in the present application can be combined with each other without conflict, and it is obvious for a person skilled in the art to obtain other drawings and other embodiments based on the drawings without any creative effort.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "a" means not only "only one of this but also a case of" more than one ".

The first embodiment of the invention relates to a dental model fixing base, and referring to fig. 1 to 3, the base 1 is connected to a tool of a marking machine in a sliding way and can be used for fixedly connecting a dental model 3. The fixed collet of dental cast is including location convex part 101, locates the one side that collet 1 and dental cast 3 are connected, moreover with set up in 3 bottoms of dental cast be used for the mark dental cast beat mark position constant head tank 31 cooperation to fixed dental cast 3. If the marking position is preset on 5 teeth in the rear tooth area of the dental cast, the positioning groove 31 at the bottom of the 5 tooth area can be connected with the positioning convex part 101 on the bottom support 1, so that the marking area can be quickly positioned while the dental cast is fixed.

Specifically, the shoe 1 includes: collet body 10 and locating piece 11, above-mentioned locating piece 11 fixed connection be in collet body 10 is close to one side of the slide 2 of frock, one side that above-mentioned locating piece 11 is close to the slide 2 lateral wall of frock is equipped with spacing groove 111, spacing groove 111 with the spacing arch 21 of slide 2 cooperatees. When the collet 1 slides in the slide 2, the collet 1 moves to a preset marking station (not shown in the figure), the limiting groove 111 is gradually close to the limiting protrusion 21 of the slide 2, and when the collet slides to the position where the limiting protrusion 21 is clamped into the limiting groove 111, the collet 1 is limited by resistance to continue sliding, and the collet 1 is positioned at the preset marking station.

Further, the positioning protrusion 101 in the present embodiment may include a positioning pin, which is detachably attached to the shoe 1. The replaceable assembly positioning of the positioning pin is realized on the bottom support 1, and the replaceable assembly positioning pin can be fixed on the bottom support body 10. The locating pin of connection can be dismantled in the adoption, and the locating pin of being convenient for can adopt the mode of subassembly assembly to fix on collet 1, simplifies the outline shape of collet 1, and the processing of being convenient for reduces the die sinking cost of collet. The locating pin in this embodiment can adopt threaded connection's mode and collet fixed, and further, can adopt the external screw thread locating pin as the locating pin in this embodiment for it is more simple and convenient when processing the locating pin hole on the collet. In practical application, the positioning pin and the bottom support can be integrated into a whole, and the formed structure is clear and is not described herein.

More specifically, two positioning pins may be provided to more stably fix the dental cast. If the positioning groove 31 at the bottom of the dental cast can be oval, two positioning pins can be inserted into the oval positioning groove 31, and the dental cast 3 can be prevented from rotating on the bottom support 1 while the connection is firm. The cooperation of locating pin and constant head tank 31 can adopt interference fit for collet 1 is at the slip or transport in-process, and tooth mould 3 is the stable connection always, avoids droing.

It should be noted that the shoe body 10 in this embodiment is made of a first material, and the positioning block 11 is made of a second material, and the hardness of the second material is greater than that of the first material. For example, the first material may be a plastic material such as PE and PP, or POM (thermoplastic crystalline polymer) or nylon, and the second material may be a wear-resistant metal such as copper and steel. Adopt the different material preparation collet body 10 and the locating piece 11 of two kinds of hardness, can increase the hardness of the part of frequent friction on the collet on the one hand, it is long when increasing the use of collet, adopt wear-resisting metal can strengthen the wearability of locating piece 11, because in the processing, locating piece 11 is more with slide friction number of times, so make wear-resisting material preparation locating piece 11 be difficult for wearing and tearing, it is long when effectively prolonging the use of collet 1. On the other hand, in whole process flow, the collet probably is by operations such as slip, bulk transport, bulk transfer, so need reduce the weight of itself, adopts the plastics that hardness is lower and weight is less to make collet body 10, not only reduces collet 1's weight itself, does benefit to processes such as possible transportation and transmits, still reduces holistic manufacturing cost.

In the dental cast fixing base support of the present embodiment, an anti-dislocation groove 102 is provided on a side of the base support 1 away from the positioning block 11 to limit the placing direction of the base support 1 in the slideway 2. The mistake proofing groove 102 is a long strip-shaped groove, the shape of the mistake proofing groove is matched with the outline of the corresponding position of the slide way, and the mistake proofing groove 102 is arranged on one side of the mistake proofing groove 102, so that when the bottom support is placed on the slide way, whether the placing direction is accurate or not can be rapidly determined, manual judgment is reduced, and the placing efficiency of production procedures is effectively increased.

In practical applications, the collet body 10 and the positioning block 11 may be connected by a screw 103. Connect collet body 10 and locating piece 11 through screw 103 for the connection between them is more firm stable.

It can be seen that, in this embodiment, the positioning convex portion 101 connected to the dental cast is provided to cooperate with the positioning groove 31 for marking the marking position on the dental cast, so as to fix the dental cast and fix the marking position of the appliance at the predetermined position corresponding to the positioning convex portion 101. Because the protruding constant head tank 31 cooperation with the tooth mould in the location of collet 1, so when collet 1 position is fixed time, the mark position of beating of tooth mould is affirmed in the lump promptly, again because beat mark position of tooth mould mark promptly for correcting the mark position of beating of ware, so through above collet, can realize confirming fast accurately and correct the ware and beat the mark position. In addition, the positioning block 11 is matched with the limiting protrusion 21 on the slide way by utilizing the limiting groove 111 of the positioning block 11, which is close to the side wall of the tool slide way of the marking machine, so that the positioning block 11 can be quickly positioned to the preset position of the slide way in the marking process, and the dental model on the fixed bottom support 1 can be quickly positioned to the marking area. Moreover, adopt the detachable locating pin to realize that the location collet adopts the subassembly assembly methods among this embodiment, simplify the outline shape of collet, the die sinking cost of collet is reduced in the processing of being convenient for. Further, the two materials with different hardness and weight are adopted to manufacture the base body 10 and the positioning block 11, which are the technical problems that the inventor of the application fully researches the fixing base of the dental cast and provides a possible technical scheme in application and a technical scheme capable of solving the technical problems.

The utility model discloses the second embodiment provides a collet is fixed to dental cast, and this embodiment has made further improvement on the basis of first embodiment, at 11 one sides newly-increased guiding grooves 113 of locating piece, adopts guiding grooves 113 to reduce the frictional force between 11 and the slide 2 of locating piece, the slip of the collet 1 of being convenient for in the slide.

Referring to fig. 4, a guide groove 113 is formed in one side of the positioning block 11, which is close to the side wall of the slide way of the tool, and when the shoe 1 moves to the preset marking station, the limiting protrusion 21 of the slide way 2 enters the limiting groove 111 through the guide groove 113. The guiding groove 113 may be an inclined surface structure, which reduces friction between the positioning block 11 and the sliding track 2 when sliding relatively, and facilitates the limiting protrusion 21 on the sliding track 2 to enter the limiting groove 111, so as to enter the limiting groove 111.

Further, referring to fig. 5, there may be two limiting grooves 111 in the embodiment, and the two limiting grooves 111 are separated by a preset distance (the preset distance may be set by a technician according to actual needs, and is not limited herein), so that the clamping force of the limiting grooves 111 can be increased, and the positioning of the fixing base 1 on the sliding rail 2 is more stable. In practical application, referring to fig. 6, a concave part 114 can be additionally arranged between the two limiting grooves 111, and the length of the concave part 114 along the direction that the dental model fixing bottom support slides on the slide way 2 is smaller than the distance between the two limiting grooves 111. By adopting the two limiting grooves 111 and the concave part 114 between the two limiting grooves 111, the clamping effect of the limiting grooves 111 is increased, and meanwhile, the friction force generated when the bottom support slides can be reduced.

Therefore, the guide groove 113 is adopted by the dental cast fixing base in the embodiment to reduce the friction between the positioning block 11 and the slideway, so that the base 1 can slide in the slideway conveniently. In addition, add spacing groove 111, increase spacing groove 111 screens effect, increase the depressed part moreover between two spacing grooves 111, reduce the frictional force when the collet slides.

The utility model discloses a third embodiment provides a collet is fixed to dental cast, and this embodiment has made further improvement on the basis of first embodiment, and the main improvement part lies in: the collet is equipped with the top die cavity 105 that is used for die down, and top die cavity 105 is close to location convex part 101 and sets up, will push up die cavity 105 and establish the position of being close to the locating pin, and the ejection power when being convenient for reduce die down.

Referring to fig. 7, two top cavity cavities 105 may be provided, for example, on both sides of the positioning protrusion 101, to increase the balance of the ejection force applied to the bottom of the dental cast during the lower molding process. The distance between adjacent top cavities 105 and positioning projections 101 may be less than 1 cm or less than 3 mm. Because when the dental cast down, the place that the power of connection is the biggest between dental cast and fixed collet 1 is exactly the frictional force that collet location convex part 101 and dental cast constant head tank 31 are connected, so establish the position that is close to the locating pin with top dental cast groove 105, the ejection power when being convenient for reduce the dental cast down avoids exerting oneself because of the too big harm dental cast of ejection power.

It is worth mentioning that, as shown in fig. 8 and 9, the positioning block 11 in this embodiment is further provided with a positioning block positioning groove 112, one side of the shoe body 10 close to and the positioning block 11 is provided with a positioning block positioning protrusion 104, the positioning block positioning groove 112 is matched with the positioning block positioning protrusion 104, so that when the shoe body 10 and the positioning block 11 are installed, the shoe body is quickly positioned, the screw holes are aligned, and the fixing installation is facilitated.

As can be seen, in the present embodiment, the top cavity 105 for the lower die is provided at a position close to the positioning protrusion 101, which facilitates reduction of the ejection force at the time of the lower die and avoids damage to the die itself due to an excessive ejection force. It should be noted that the technical features added to the dental model fixing base in the second and third embodiments can be combined with the dental model fixing base in the first embodiment, and can also be combined with the first embodiment to form a new dental model fixing base, as shown in fig. 10, the combination modes are variable, and are not listed here.

The utility model discloses a fourth embodiment provides a dental cast subassembly, include: a dental cast, and a dental cast fixing base as described in any of the first to third embodiments above. Specifically speaking, the bottom that the mould corresponds with the mark position of beating is equipped with the constant head tank, the constant head tank with the location convex part cooperation on the fixed collet of mould of tooth to fix the mould of tooth on the fixed collet of mould of tooth.

The utility model discloses a fifth embodiment provides a frock subassembly, see figure 2, include: slide frock 2 and as above-mentioned any one dental model in first embodiment to the third embodiment fix collet 1, the fixed collet 1 sliding connection of dental model in slide frock 2 is in when collet 1 removes to the mark station of predetermineeing, spacing groove 111 is close to gradually the spacing arch 21 of slide 2 is gone into by spacing arch 21 card until being gone into, is located to beat the mark station with collet 1.

Furthermore, the limiting protrusion on the slide way tool 2 is a spring plunger, and further can be a ball plunger or a positioning ball/column, a spring is arranged in the screw thread, and the pretightening force is adjusted by controlling the screwing-in depth to realize the positioning function. In the operating condition, on dental model 3 was fixed in collet 1, because the protruding constant head tank 31 cooperation with the dental model in the location of collet 1, so when collet 1 position is fixed time, the mark position of beating of dental model is confirmed in the lump promptly, again because beat mark position of beating of dental model mark promptly for correcting the ware mark position, so through above subassembly, can realize confirming fast accurately and correcting the ware and beat the mark position.

The utility model discloses a sixth embodiment provides a marking machine for tooth jaw model, include: a marking assembly, a material pushing cylinder, a tool assembly in the fifth embodiment, and the like.

Referring to fig. 11, specifically, the tooling assembly and the marking assembly are respectively fixed on the mounting table 40, the material pushing cylinder 41 is disposed on one side of the tooling assembly away from the protective cover 42, and is used for pushing a dental model fixing base (not shown in the figure) in the tooling assembly to move along the slide 2 in the tooling assembly until the limiting protrusions on the slide 2 are clamped into the limiting grooves in the dental model fixing base, so as to position the dental model fixing base at the marking station.

Furthermore, the marking assembly is used for marking the dental model positioned on the dental model fixing support of the marking station. As shown in fig. 11, the marking assembly in this embodiment includes a laser 51, which may be a green laser, disposed on a servo lifting column 52, and can move up and down to adjust the distance between the laser 51 and the dental model.

Spacing protruding and the spacing groove card in collet side on the slide with the time, fixed collet just is located and marks the mark station, and fixed collet is located this when marking the mark station, lies in protection casing 42 simultaneously for marking machine during operation, laser is sheltered from by protection casing 42, avoids laser beam to produce harm to technical staff as far as possible.

The side wall of the protective cover 42 is provided with a green light resistant acrylic plate 421, so that the condition in the protective cover can be conveniently checked, and whether the marking process is normal or not is determined. Be equipped with brush 422 near the lateral wall of one side of slide 2, when fixed collet removed through this lateral wall, the tooth mould on the collet can be brushed to the brush, when realizing removing, and clean tooth mould saves the whole time of beating the mark process.

Furthermore, in the embodiment, a material discharging plate 43 is further provided, the material discharging plate 43 and the slide way 2 are vertically arranged and are also fixed on the mounting table 40, the fixed bottom support can be pushed into the slide way 2 through the material discharging plate 43 and then is sent into the marking station under the protective cover 42 through the material discharging cylinder 41, and the contact between a human body and a laser beam emitted by a laser is avoided as much as possible during manual operation.

Therefore, the marking machine for the dental jaw model in the embodiment can conveniently transport the dental model to the marking station and locate the marking area, so that the automation degree of the marking process is increased, the operation efficiency of the marking process is improved, the defective rate is reduced, and the overall processing efficiency of the production line of the appliance is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.

Claims (10)

1. A dental cast fixing base support, comprising:

the bottom support is connected to the tool of the marking machine in a sliding manner;

the positioning convex part is arranged on one surface of the bottom support connected with the dental cast and is matched with a positioning groove which is arranged at the bottom of the dental cast and used for marking the marking position of the dental cast so as to fix the dental cast;

wherein, the collet includes: collet body and locating piece, locating piece fixed connection be in the collet body is close to one side of the slide of frock, the locating piece is close to one side of the slide lateral wall of frock is equipped with the spacing groove the collet is when beating the mark station removal to predetermineeing, the spacing groove is close to the spacing arch of slide is until quilt spacing protruding card is gone into, will the collet is located beat the mark station.

2. The dental cast fixing underwire according to claim 1, wherein said positioning projections comprise positioning pins, said positioning pins being removably attached to said underwire.

3. The dental cast fixing base support according to claim 1, wherein a guide groove is formed in one side of the positioning block, which is close to the side wall of the slide way of the tool, and when the base support moves to a preset marking station, the limiting protrusion of the slide way enters the limiting groove through the guide groove.

4. The dental model fixing base support according to claim 1, 2 or 3, wherein there are two of said limiting grooves, and a recessed portion is provided between said two limiting grooves, and the length of said recessed portion along the direction in which said dental model fixing base support slides on said slideway is smaller than the distance between said two limiting grooves.

5. The dental cast fixing underwire according to claims 1, 2 or 3, wherein said underwire body is of a first material and said positioning block is of a second material, said second material being harder than said first material.

6. A dental cast fixing underwire according to claim 1, 2 or 3, characterized in that the side of said underwire remote from said positioning block is provided with an anti-mismatching groove to define the direction of placement of said underwire in said slideway.

7. A dental model assembly, comprising: a dental model, and a dental model fixing underwire according to any one of claims 1 to 6;

the bottom that the die corresponds with the mark position of beating is equipped with the constant head tank, the constant head tank with the cooperation of the location convex part on the fixed collet of die, in order to fix on the fixed collet of die the die.

8. The utility model provides a frock subassembly which characterized in that includes: the fixed collet of slide frock and dental model as claimed in any one of claims 1 to 6, the fixed collet sliding connection of dental model is in on the slide frock, when the collet moves to the mark station of predetermineeing, the spacing groove is close to the spacing arch of slide, until by spacing protruding card is gone into, will the collet is located mark station.

9. The tooling assembly of claim 8, wherein the limiting protrusion on the slide tooling is a ball plunger.

10. A marking machine for dental models, comprising: a marking assembly, a pusher cylinder, and a tooling assembly as recited in claim 9;

the tool assembly and the marking assembly are respectively fixed on an installation table, the material pushing cylinder is arranged on one side of the tool assembly and used for pushing a dental model fixing bottom support in the tool assembly to move along a slide way in the tool assembly until the limiting protrusion on the slide way is clamped into the limiting groove in the dental model fixing bottom support, and the dental model fixing bottom support is positioned at the marking station;

the marking assembly is used for marking the dental model positioned on the dental model fixing support of the marking station.

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