False tooth processing clamp

Abstract

The utility model relates to the technical field of false tooth machining, and discloses a false tooth machining clamp which comprises a clamp base and a plurality of positioning connecting screws arranged on the clamp base. Wherein the positioning connecting screw comprises a tightening mounting part, a positioning connecting part, a positioning connecting part, a clamping part and a clamping part, and the cross section of the positioning connecting screw is in stepped transition from large to small in sequence; the tightening mounting part is matched with a mounting tool to realize integral rotation of the screw; the transition connecting part is matched with the hole in the clamp base, so that the radial movement limiting of the whole screw is realized; the threaded connecting part is used for being connected with a to-be-machined workpiece to directly fix and limit the to-be-machined workpiece; and a step chamfer connecting part is arranged between the tightening mounting part and the transition connecting part. According to the false tooth machining clamp provided by the utility model, the fixing and limiting stability of the workpiece to be machined can be effectively improved, so that the precise machining of the false tooth is effectively realized, and the machining quality of the false tooth is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to false tooth processing technical field, concretely relates to a false tooth processing fixture. BACKGROUND

[0002] Screw or bolt is a kind of commonly used workpiece for realizing the connection of components;Generally, it can be installed on the component with mounting hole to realize its installation and fixation.

[0003] In the false tooth processing field of prior art, the fixture generally realizes the fixation and limiting of the workpiece to be processed by clamping, that is, by installing the clamping component on the fixture base, the fixation and limiting of the workpiece to be processed are realized by the clamping force between the clamping component and the fixture base. When the fixture is loose or clamping is unstable, the workpiece to be processed clamped between the two often shakes, which affects the stability of the workpiece to be processed, thereby affecting the precision of workpiece processing.

[0004] Therefore, it is of great significance to realize the precision machining of false tooth and improve the quality of false tooth to study a technology that can effectively improve the stability of fixation and limiting of the workpiece to be processed and improve the precision of workpiece processing. SUMMARY

[0005] In order to solve the problems of the prior art, the utility model provides a false tooth processing fixture, which directly fixes and limits the workpiece to be processed by using a plurality of positioning connection screws arranged on the fixture base. Compared with the clamping fixation mode in the prior art, the stability of fixation and limiting of the workpiece to be processed can be effectively improved, thereby effectively realizing the precision machining of false tooth and improving the quality of false tooth processing.

[0006] The technical effects achieved by the utility model are realized by the following technical aspects:

[0007] In a first aspect, the utility model provides a false tooth processing fixture, which includes a fixture base and a plurality of positioning connection screws arranged on the fixture base. Wherein,

[0008] The positioning connection screw includes a screw tightening installation part, a transition connection part and a threaded connection part, which are arranged in sequence from large to small in cross section.

[0009] The screw tightening installation part is used to cooperate with the installation tool to realize the rotation of the whole screw.

[0010] The transition connection part cooperates with the hole on the fixture base to realize the radial movement limiting of the whole screw.

[0011] And the threaded connection part is used to connect with the workpiece to be processed to realize the direct fixation and limiting of the workpiece to be processed.

[0012] And a stepped chamfer connecting portion is arranged between the screwing mounting portion and the transition connecting portion.

[0013] As one of the preferred solutions, the stepped chamfer connecting portion comprises a first chamfer connecting portion connected with the screwing mounting portion, and a second chamfer connecting portion connected with the transition connecting portion on one side of the first chamfer connecting portion.

[0014] As one of the preferred solutions, the first chamfer connecting portion and the second chamfer connecting portion are inverted right-angle connecting portions or inverted round-angle connecting portions, which can be the same or different.

[0015] As one of the preferred solutions, when the first chamfer connecting portion and the second chamfer connecting portion are both inverted right-angle connecting portions, the chamfer angle of the first chamfer connecting portion is smaller than that of the second chamfer connecting portion.

[0016] As one of the preferred solutions, a third chamfer connecting portion is arranged between the transition connecting portion and the threaded connecting portion; the third chamfer connecting portion is an inverted right-angle connecting portion or an inverted round-angle connecting portion.

[0017] As one of the preferred solutions, the screwing mounting portion comprises a cylindrical mounting portion body, and a hexagonal limiting groove formed on the cylindrical mounting portion body.

[0018] As one of the preferred solutions, the sum of the lengths of the transition connecting portion and the threaded connecting portion is at least 2 / 3 of the total length of the screw.

[0019] As one of the preferred solutions, the clamp base comprises a base body, a first mounting hole group arranged on one end face of the base body, and a second mounting hole group arranged on the other opposite end face of the base body and staggered with the first mounting hole group.

[0020] As one of the preferred solutions, the first mounting hole group and the second mounting hole group each comprise at least two mounting connecting holes arranged uniformly along the length direction of the base body.

[0021] As one of the preferred solutions, the mounting connecting hole comprises a first mounting hole limiting portion matched with the screwing mounting portion, a second mounting hole limiting portion matched with the transition connecting portion and connected with the first mounting hole limiting portion, a third mounting hole limiting portion matched with the threaded connecting portion and connected with the second mounting hole limiting portion, and a mounting hole chamfer connecting portion arranged between the first mounting hole limiting portion and the second mounting hole limiting portion and matched with the stepped chamfer connecting portion.

[0022] In summary, the utility model has at least the following advantages:

[0023] 1. The denture processing fixture provided by the utility model, utilizes multiple positioning connecting screws arranged on the fixture base to directly fix and limit the workpiece to be processed, compared with the clamping and fixing mode in the prior art fixture, can effectively improve the stability of the workpiece to be processed in fixing and limiting, thereby effectively realizing the precision processing of the denture and improving the quality of the denture processing.

[0024] 2. The denture processing fixture provided by the utility model, the positioning connecting screw comprises a tightening installation part, a transition connecting part and a threaded connecting part which are sequentially and stepwise transitioned from large to small in cross section, and a stepped chamfer linking part is arranged between the tightening installation part and the transition connecting part; the installation connecting hole comprises a first installation hole limiting part matched with the tightening installation part, a second installation hole limiting part matched with the transition connecting part and linked to the first installation hole limiting part, a third installation hole limiting part matched with the workpiece to be processed and the threaded connecting part and linked to the second installation hole limiting part, and an installation hole chamfer linking part matched with the stepped chamfer linking part and arranged between the first installation hole limiting part and the second installation hole limiting part; the corresponding parts of the positioning connecting screw and the installation connecting hole are matched, and the accurate and stable positioning of the workpiece to be processed can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a sectional view schematic diagram of the overall structure of the denture processing fixture in the utility model embodiment.

[0026] Figure 2 It is a structural schematic diagram of the positioning connecting screw in the utility model embodiment.

[0027] Figure 3 It is a structural schematic diagram of the fixture base in the utility model embodiment.

[0028] Figure 4 It is Figure 1 It is an enlarged schematic diagram of part A.

[0029] REFERENCE SIGNS:

[0030] 10. Workpiece to be processed;

[0031] 100. Fixture base; 110. Base body; 120. First installation hole group; 130. Second installation hole group; 121. Installation connecting hole; 101. First installation hole limiting part; 102. Second installation hole limiting part; 103. Third installation hole limiting part; 104. Installation hole chamfer linking part;

[0032] 200, positioning connecting screw; 210, tightening mounting portion; 211, cylindrical mounting portion body; 212, hexagonal limiting groove; 220, transition connecting portion; 230, threaded connecting portion; 240, stepped chamfer connecting portion; 241, first chamfer connecting portion; 242, second chamfer connecting portion; 250, third chamfer connecting portion. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application.

[0034] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0035] Please refer to the drawings Figure 1 The false tooth processing clamp in the embodiments of the present application comprises a clamp base 100 and a plurality of positioning connecting screws 200 arranged on the clamp base 100. The plurality of positioning connecting screws 200 arranged on the clamp base 100 are used to directly fix and limit the workpiece 10 to be processed. Compared with the clamping and fixing mode in the prior art, the stability of the fixing and limiting of the workpiece 10 to be processed can be effectively improved, so that the precise processing of the false tooth is effectively realized, and the quality of the false tooth processing is improved.

[0036] Please further refer to the drawings Figure 2The positioning connecting screw 200 comprises a screwing installation part 210, a transition connecting part 220 and a threaded connecting part 230 which are sequentially stepped transitioned from large to small in cross section, and a stepped chamfer connecting part 240 is arranged between the screwing installation part 210 and the transition connecting part 220. The screwing installation part 210 is used for cooperating with an installation tool to realize rotation of the whole screw, so as to realize screwing in and out of the whole screw on the clamp base 100; the transition connecting part 220 cooperates with a hole on the clamp base 100, so as to realize radial movement limiting of the whole screw and preliminary positioning of the screw; the threaded connecting part 230 is used for connecting with the workpiece 10 to be processed, so as to realize direct fixing and limiting of the workpiece 10 to be processed; and the stepped chamfer connecting part 240 not only can effectively facilitate installation of the screw on the hole of the clamp base 100 and improve clamp clamping efficiency, but also can effectively improve centring property of the whole screw compared with the straight stepped structure in the prior art, so as to effectively improve precision and stability of the workpiece 10 to be processed connected therewith, thereby effectively realizing precise machining of the denture and improving quality of the denture machining.

[0037] In some embodiments, the stepped chamfer connecting part 240 comprises a first chamfer connecting part 241 connected with the screwing installation part 210, and a second chamfer connecting part 242 connected with one side of the first chamfer connecting part 241 and the other side of the transition connecting part 220; when limiting the workpiece 10 to be processed, the first chamfer connecting part 241 can abut against the hole on the clamp base 100 to realize radial limiting of the whole screw, and the second chamfer connecting part 242 continuously reduces the cross-sectional area until abutting against the transition connecting part 220, so that the cross-sectional area of the transition connecting part 220 is smaller than the size of the corresponding hole on the clamp base 100, thereby making the transition connecting part 220 and the hole on the clamp base 100 present a clearance fit state, which can realize limiting of the screw and does not affect smooth installation of the screw. Preferably, the first chamfer connecting part 241 and the second chamfer connecting part 242 are inverted right-angle connecting parts or inverted round-angle connecting parts, and the two connecting parts can be designed as the same or different structures according to actual needs. For example, the first chamfer connecting part 241 and the second chamfer connecting part 242 can be designed as inverted right-angle connecting parts, and further optimization design is performed, in which the chamfer angle of the first chamfer connecting part 241 is smaller than the chamfer angle of the second chamfer connecting part 242; the first chamfer connecting part 241 with a smaller chamfer angle abuts against the hole on the clamp base 100, which can effectively reduce radial runout of the whole screw, thereby further effectively improving positioning precision of the workpiece 10 to be processed, and the second chamfer connecting part 242 with a larger chamfer angle can effectively reduce the cross-sectional area of the whole transition connecting part 220, thereby avoiding interference between the screw and the hole of the clamp base 100 during installation and positioning.

[0038] In some embodiments, a third chamfer joint 250 is arranged between the transition connection 220 and the threaded connection 230, preferably the third chamfer joint 250 is an inverted right-angle joint or an inverted round-angle joint; the transition connection 220 has a larger cross-sectional area, which can facilitate the radial positioning of the screw as a whole, while the threaded connection 230 has a smaller cross-sectional area, which can facilitate the connection between the screw and the workpiece 10 to be processed, thereby reducing the overall volume of the screw. In order to further optimize the overall structure, the sum of the lengths of the transition connection 220 and the threaded connection 230 is at least 2 / 3 of the total length of the screw; the transition connection 220 and the threaded connection 230 are parts with smaller cross-sectional areas, and when they have a larger length, the overall volume of the screw can be further effectively reduced without affecting the rigidity and strength of the screw as a whole, thereby reducing the manufacturing cost of the screw.

[0039] In some embodiments, the tightening mounting portion 210 includes a cylindrical mounting portion body 211, and a hexagonal limiting groove 212 formed on the cylindrical mounting portion body 211; by inserting a hexagonal wrench into the hexagonal limiting groove 212 and rotating the hexagonal wrench, the rotation of the screw as a whole can be realized. Alternatively, the tightening mounting portion 210 can be directly designed as a hexagonal prism structure, and the rotation of the screw as a whole can be realized by a socket wrench.

[0040] Please further refer to the accompanying drawings Figure 3 In some embodiments, the clamp base 100 includes a base body 110, a first mounting hole group 120 arranged on one end face of the base body 110, and a second mounting hole group 130 arranged on the other opposite end face of the base body 110 and staggered with the first mounting hole group 120; by cooperating the positioning connection screw 200 with the first mounting hole group 120 and the second mounting hole group 130, the workpiece 10 to be processed can be clamped on the two opposite end faces of the clamp base 100. Further, the first mounting hole group 120 and the second mounting hole group 130 each include at least two mounting connection holes 121 arranged uniformly along the length direction of the base body 110.

[0041] Please further refer to the accompanying drawings Figure 4 Preferably, the mounting connection hole 121 includes a first mounting hole limiting portion 101 adapted to the tightening mounting portion 210, a second mounting hole limiting portion 102 adapted to the transition connection 220 and connected to the first mounting hole limiting portion 101, a third mounting hole limiting portion 103 adapted to the workpiece 10 and the threaded connection 230 and connected to the second mounting hole limiting portion 102, and a mounting hole chamfer joint 104 arranged between the first mounting hole limiting portion 101 and the second mounting hole limiting portion 102 and adapted to the stepped chamfer joint 240; the mounting hole chamfer joint 104 corresponds to the first chamfer joint 241 in the stepped chamfer joint 240, and can be designed as an inverted right-angle structure or an inverted round-angle structure according to the shape of the first chamfer joint 241.

[0042] The denture processing fixture provided by the embodiment of the utility model, the positioning connecting screw 200 includes the screwing installation part 210, the transition connecting part 220 and the threaded connecting part 230 that are sequentially stepped transition from big to small in cross section, and the stepped chamfer joint part 240 is arranged between the screwing installation part 210 and the transition connecting part 220;The installation connecting hole 121 includes the first installation hole limiting part 101 that is adapted with the screwing installation part 210, the second installation hole limiting part 102 that is adapted with the transition connecting part 220 and is jointed to the first installation hole limiting part 101, the third installation hole limiting part 103 that is adapted with the threaded connecting part 230 and is jointed to the second installation hole limiting part 102, and the installation hole chamfer joint part 104 that is arranged between the first installation hole limiting part 101 and the second installation hole limiting part 102 and is adapted with the stepped chamfer joint part 240;The corresponding parts of the positioning connecting screw 200 and the installation connecting hole 121 are matched, and the accurate and stable positioning of the workpiece 10 to be processed can be realized.

[0043] From the technical scheme of the above embodiment, the utility model provides a kind of denture processing fixture, utilize multiple positioning connecting screw arranged on fixture base, to be directly fixed and limit to workpiece to be processed, compared with the mode of clamping fixation in prior art fixture, the stability of workpiece to be processed fixed and limit can be effectively improved, to effectively realize the precision machining of denture, improve the quality of denture processing.

[0044] In the utility model, unless another explicit provision and limitation, the terms "installation", "connection", "connection", "fixing" and other terms should be broad-sense understood, for example, can be fixed connection, or can be detachable connection, or integrated;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through intermediate medium, it can be the communication of two elements or the interaction of two elements.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0045] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like is based on the orientation or position relationship shown in the drawing, or the orientation or position relationship of the utility model product when it is usually placed, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, so it cannot be understood as a limitation on the utility model.In addition, the terms "first", "second", "third" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0046] Furthermore, terms such as "horizontal," "vertical," "up," "down," "top," "bottom," "side," "end," "front," "back," "upper," "lower," "horizontal," "vertical," and the like are used herein for convenience, are not intended to be limiting, and are not intended to connote orientation of an article. Terms concerning attachments, such as "connected," "attached," "coupled," "interconnected," and the like, are not limited to direct or physical attachments or connections, but can include electrical, logical or other helpful connections or associations.

[0047] In the present application, unless specifically stated and limited otherwise, the first feature above or below the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] Although the description of the present application is combined with the above specific embodiments, it is obvious that many substitutions, modifications and changes can be made according to the above content for those skilled in the art. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A denture processing jig characterized by, The utility model relates to a clamping base (100) and a plurality of positioning connecting screws (200) arranged on the clamping base (100), wherein The positioning connecting screw (200) comprises a cross section that is gradually reduced from large to small in steps: The tightening mounting part (210) is used to cooperate with the mounting tool to realize the rotation of the whole screw; The transition connecting part (220) cooperates with the hole on the clamping base (100) to realize the radial movement limiting of the whole screw; The threaded connecting part (230) is used to connect with the workpiece to be processed to realize the direct fixing and limiting of the workpiece to be processed; And the tightening mounting part (210) and the transition connecting part (220) are provided with a stepped chamfer connecting part (240).

2. The denture processing jig of claim 1, wherein The stepped chamfer connecting part (240) comprises a first chamfer connecting part (241) connected with the tightening mounting part (210), and a second chamfer connecting part (242) connected with the transition connecting part (220) on one side of the first chamfer connecting part (241).

3. The denture processing jig of claim 2, wherein The first chamfer connecting part (241) and the second chamfer connecting part (242) are inverted right angle connecting parts or inverted round angle connecting parts, which can be the same or different.

4. The denture processing jig of claim 3, wherein When the first chamfer connecting part (241) and the second chamfer connecting part (242) are inverted right angle connecting parts, the chamfer angle of the first chamfer connecting part (241) is smaller than that of the second chamfer connecting part (242).

5. The denture processing jig of claim 1, wherein The transition connecting part (220) and the threaded connecting part (230) are provided with a third chamfer connecting part (250); the third chamfer connecting part (250) is an inverted right angle connecting part or an inverted round angle connecting part.

6. The denture processing jig of claim 1, wherein The tightening mounting part (210) comprises a cylindrical mounting part body (211) and a hexagonal limiting groove (212) formed on the cylindrical mounting part body (211).

7. The denture processing jig of claim 1, wherein The sum of the lengths of the transition connecting part (220) and the threaded connecting part (230) is at least 2 / 3 of the total length of the screw.

8. The denture processing jig of claim 1, wherein, The clamping base (100) comprises a base body (110), a first mounting hole group (120) arranged on one end face of the base body (110), and a second mounting hole group (130) arranged on the other opposite end face of the base body (110) staggered with the first mounting hole group (120).

9. The denture processing jig of claim 8, wherein, The first mounting hole group (120) and the second mounting hole group (130) each comprise at least two mounting connecting holes (121) arranged uniformly along the length direction of the base body (110).

10. The denture processing jig of claim 9, wherein, The mounting connecting hole (121) comprises a first mounting hole limiting portion (101) matched with the screw mounting portion (210), a second mounting hole limiting portion (102) matched with the transition connecting portion (220) and connected to the first mounting hole limiting portion (101), a third mounting hole limiting portion (103) matched with the threaded connecting portion (230) and connected to the second mounting hole limiting portion (102), and a mounting hole chamfer connecting portion (104) disposed between the first mounting hole limiting portion (101) and the second mounting hole limiting portion (102) and matched with the stepped chamfer connecting portion (240).

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