Clamp for angle abutment machining

Abstract

The utility model relates to oral cavity medical instrument processing technical field, concretely discloses a kind of angle abutment processing is used clamp, base top surface middle part both sides are fixed with support in pairs, and support middle part top end is respectively equipped with sleeve hole;Fixed clamping plate is located in one side support inside and inside wall middle part is vertically equipped with cambered surface groove one;Movable clamping plate is located in the other side support inside and inside wall middle part is vertically equipped with cambered surface groove two;Servo motor power output shaft is fixedly connected with fixed clamping plate outside wall middle part and is fixed in corresponding support outside wall;Telescopic cylinder piston rod end and movable clamping plate outer wall middle part rotation sleeve joint and piston cylinder is fixed in corresponding support outside wall, and the problem that it is not convenient to efficiently adjust and turn base blank when processing base is preferably solved.

Description

Technical Field

[0001] This utility model relates to the field of dental medical device processing technology, specifically a fixture for processing angled abutments. Background Technology

[0002] In the field of dental implant restoration, angled abutments are widely used to address the issue of misalignment between the implant and the crown. An angled abutment typically has an abutment interface that connects to the implant and a tilted platform with a specific angle that connects to the superstructure. To ensure precise placement and long-term stability of the restoration, the machining precision of angled abutments is extremely high.

[0003] Angular abutments are typically machined using a multi-axis CNC machining center. The abutment blank is fixed in a fixture, which is mounted on the upper surface of the worktable via a horizontally rotatable indexing plate. Multi-axis cutting tools machine the blank into the finished abutment. During the machining of angular abutments, one end of the blank needs to be machined to form the connection portion for assembly with the artificial crown, and the other end needs to be machined to form the connection portion for assembly with the implant. The machining process involves first fixing one end of the blank in the fixture, machining the other end, then removing the blank from the fixture, and then inverting it back into the fixture for the second end machining. In other words, the operation of turning the blank during abutment machining is relatively complex, affecting overall machining efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for machining angled bases, which solves the problem that it is not convenient to efficiently rotate the base blank when machining bases.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for machining an angled base, wherein a pair of supports are fixed on both sides of the middle of the top surface of the base, and each support has a sleeve hole at its top center; a fixed clamping plate is located inside one of the supports and has a vertically arranged arc-shaped groove in the middle of its inner wall; a movable clamping plate is located inside the other support and has a vertically arranged arc-shaped groove in the middle of its inner wall; a servo motor power output shaft is fixedly connected to the middle of the outer wall of the fixed clamping plate and fixed to the corresponding outer wall of the support; the end of the piston rod of the telescopic cylinder is rotatably sleeved with the middle of the outer wall of the movable clamping plate and the piston cylinder is fixed to the corresponding outer wall of the support.

[0006] Preferably, the base includes a base plate and a boss located in the middle of the top surface of the base plate, and the bottom ends of the support are respectively fixed to both sides of the middle of the top surface of the boss.

[0007] Preferably, a strip groove is provided longitudinally on the top surface of the boss near the fixed clamping plate. Rectangular holes are provided on the front and rear walls of the boss at the positions corresponding to the bottom of the strip groove. Threaded holes are provided on the top surface of the boss at the positions corresponding to the middle of the rectangular holes. A bottom support block extending into the rectangular holes is slidably fitted vertically in the strip groove. Adjusting bolts are threaded into the threaded holes, and the bottom ends of the adjusting bolts are rotatably connected to the front and rear ends of the bottom support blocks.

[0008] Preferably, the bottom support block includes a central block that is slidably engaged with the strip groove along the vertical direction, and a strip integrally formed at the bottom of the front and rear ends of the central block and slidably engaged with the rectangular hole along the vertical direction. The strip is provided with a connecting hole that is rotatably engaged with the bottom end of the adjusting bolt.

[0009] Preferably, the top surface of the central block is provided with an arc-shaped concave surface.

[0010] Preferably, guide rods are fixedly fitted at the four corners of the inner sidewall of the fixed clamping plate, and guide holes that are slidably fitted and matched with the guide rods are provided at the four corners of the movable clamping plate.

[0011] Preferably, a connecting sleeve is fixed at the middle of the outer side wall of the movable clamping plate to be rotatably fitted and matched with the end of the piston rod of the telescopic cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model relates to a fixture for machining angled bases, which facilitates flexible and rapid adjustment of the base blank during the machining of angled bases, thereby improving the efficiency of angled base machining. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a three-dimensional structural diagram of the base of this utility model; Figure 3 This is a three-dimensional structural diagram of the fixing clamp of this utility model; Figure 4 This is a three-dimensional structural diagram of the movable clamping plate of this utility model; Figure 5 This is a three-dimensional structural diagram of the bottom support block of this utility model.

[0014] In the diagram: 1-base; 1.1-base plate; 1.2-boss; 1.2.1-slot; 1.2.2-rectangular hole; 1.2.3-threaded hole; 1.3-support; 1.3.1-sleeve hole; 2-Fixed clamping plate; 2.1-Arc-shaped groove one; 2.2-Guide rod; 3-Modible clamping plate; 3.1-Arc-shaped groove II; 3.2-Connecting sleeve; 3.3-Guide hole; 4-Servo motors; 5-Telescopic cylinder; 6-Bottom support block; 6.1-Middle block; 6.1.1-Arched concave surface; 6.2-Strip; 6.2.1-Connecting hole; 7-Adjusting bolt. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 This utility model provides a technical solution: a fixture for machining an angled base, the base 1 including a base plate 1.1, a boss 1.2 located in the middle of the top surface of the base plate 1.1, and a pair of supports 1.3 fixed to both sides of the middle of the top surface of the boss 1.2. The top of the middle of the support 1.3 is provided with a sleeve hole 1.3.1, the middle of the top surface of the boss 1.2 is provided with a strip groove 1.2.1 along the longitudinal direction, the front and rear walls of the boss 1.2 are provided with rectangular holes 1.2.2 corresponding to the bottom of the strip groove 1.2.1, and the top surface of the boss 1.2 is provided with threaded holes 1.2.3 corresponding to the middle of the rectangular holes 1.2.2.

[0017] The fixing plate 2 is located inside the support 1.3 on one side, and the middle of the inner wall has an arc-shaped groove 2.1 along the vertical direction. Guide rods 2.2 are fixedly installed at the four corners of the inner wall of the fixing plate 2.

[0018] The movable clamping plate 3 is located inside the support 1.3 on the other side, and the middle of the inner wall is provided with an arc-shaped groove 3.1 along the vertical direction. The four corners of the movable clamping plate 3 are respectively provided with guide holes 3.3 that are matched with the guide rod 2.2 for sliding sleeve connection. The middle of the outer wall of the movable clamping plate 3 is fixed with a connecting sleeve 3.2.

[0019] The power output shaft of the servo motor 4 is fixedly connected to the middle of the outer side wall of the fixed clamping plate 2 and fixed to the outer side wall of the corresponding support 1.3. That is, the power output shaft of the servo motor 4 passes through the sleeve hole 1.3.1 and is fixedly connected to the middle of the outer side wall of the fixed clamping plate 2. When the servo motor 4 is running, it will drive the fixed clamping plate 2 to rotate in the vertical plane. And through the linkage of the guide rod 2.2, the movable clamping plate 3 will rotate synchronously with the fixed clamping plate 2.

[0020] The piston rod end of the telescopic cylinder 5 is rotatably sleeved with the middle of the outer wall of the movable clamping plate 3, and the piston cylinder is fixed to the outer wall of the corresponding support 1.3. That is, the piston rod of the telescopic cylinder 5 passes through the sleeve hole 13.1 and is rotatably sleeved with the connecting sleeve 3.2. The telescopic cylinder 5 can be an electric cylinder or a pneumatic cylinder, using a servo drive method, and has a piston rod stroke self-locking structure.

[0021] The base support block 6 includes a central block 6.1 that slides vertically into the strip groove 1.2.1, and a strip 6.2 integrally formed at the bottom of the front and rear ends of the central block 6.1 and vertically slidingly engaging with the rectangular hole 1.2.2. The strip 6.2 has a connecting hole 6.2.1. An adjusting bolt 7 is threaded into the threaded hole 1.2.3, and the bottom end of the adjusting bolt 7 is rotatably fitted into the connecting hole 6.2.1 via a bearing. The top surface of the central block 6.1 has an arc-shaped concave surface 6.1.1. By rotating the adjusting bolt 7 relative to the threaded hole 1.2.3, the overall vertical movement of the base support block 6 can be easily achieved to adjust the height of the arc-shaped concave surface 6.1.1.

[0022] In summary, when machining the base, first place one end of the base blank between the top of the arc groove 1 2.1 and the top of the arc groove 2 3.1, then push the movable clamping plate 3 towards the center with the telescopic cylinder 5. Under the guidance of the guide rod 2.2, the movable clamping plate 3 closes with the fixed clamping plate 2 to achieve clamping and fixing of the base blank.

[0023] The top of the abutment blank is then machined using a multi-axis tool to complete the fabrication of the artificial crown connection.

[0024] Then the telescopic rod 5 pulls the movable clamping plate 3 outward, at which point the clamping effect on the base blank is released. Under the action of gravity and guided by the arc groove 2.1 and the arc groove 3.1, the base blank falls downward until the bottom end touches the arc concave surface 6.1.1 which has been adjusted to a suitable height.

[0025] The telescopic cylinder 5 pushes the movable clamping plate 3 inward again to re-clamp and fix the base blank.

[0026] The servo motor 4 then drives the clamping mechanism consisting of the fixed clamping plate 2 and the movable clamping plate 3 to rotate 90° as a whole, thereby realizing the rotation operation of the abutment blank, which facilitates the processing of the abutment blank by the multi-axis tool to complete the fabrication of the implant connection part.

[0027] It should be noted that in this article, relational terms such as first and second are only used to refer to... Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for machining an angled pedestal, characterized in that, include: The base (1) has a pair of supports (1.3) fixed on both sides of the middle part of the top surface. The top of the middle part of the supports (1.3) is provided with a sleeve hole (1.3.1). A fixed clamp (2) is provided on the inner side of the support (1.3) on one side, and an arc-shaped groove (2.1) is provided in the middle of the inner wall along the vertical direction. The movable clamp (3) is located inside the support (1.3) on the other side, and the inner wall has a vertically arranged arc-shaped groove (3.1) in the middle. The servo motor (4) has its power output shaft fixedly connected to the middle of the outer side wall of the fixed clamp (2) and fixed to the outer side wall of the corresponding support (1.3); The telescopic cylinder (5) has its piston rod end rotatedly connected to the middle of the outer wall of the movable clamp (3), and the piston cylinder is fixed to the outer wall of the corresponding support (1.3).

2. The fixture for machining an angled platform according to claim 1, characterized in that: The base (1) includes a base plate (1.1) and a boss (1.2) located in the middle of the top surface of the base plate (1.1). The bottom ends of the support (1.3) are respectively fixed to the two sides of the middle of the top surface of the boss (1.2).

3. The fixture for machining an angled platform according to claim 2, characterized in that: The top surface of the boss (1.2) has a longitudinally arranged strip groove (1.2.1) near the fixed clamping plate (2). The front and rear walls of the boss (1.2) are respectively provided with rectangular holes (1.2.2) at the bottom of the strip groove (1.2.1). The top surface of the boss (1.2) is respectively provided with threaded holes (1.2.3) at the middle of the rectangular holes (1.2.2). The bottom support block (6) extending to the rectangular holes (1.2.2) is vertically slidably fitted in the strip groove (1.2.1). Adjusting bolts (7) are threaded in the threaded holes (1.2.3). The bottom ends of the adjusting bolts (7) are respectively rotated and sleeved with the front and rear ends of the bottom support block (6).

4. The fixture for machining an angled platform according to claim 3, characterized in that: The bottom support block (6) includes a central block (6.1) that is vertically slidably engaged in the strip groove (1.2.1) and a strip (6.2) integrally formed on the bottom of the front and rear ends of the central block (6.1) and vertically slidably engaged in the rectangular hole (1.2.2). The strip (6.2) is provided with a connecting hole (6.2.1) that is rotatably engaged in the bottom end of the adjusting bolt (7).

5. A fixture for machining an angled platform according to claim 4, characterized in that: The top surface of the middle block (6.1) is provided with an arc-shaped concave surface (6.1.1).

6. A fixture for machining an angled base according to claim 1, characterized in that: Guide rods (2.2) are fixedly fitted at the four corners of the inner sidewall of the fixed clamping plate (2), and guide holes (3.3) that slide and match the guide rods (2.2) are provided at the four corners of the movable clamping plate (3).

7. A fixture for machining an angled platform according to claim 1, characterized in that: The movable clamp (3) has a connecting sleeve (3.2) fixed in the middle of the outer side wall, which is rotatably fitted to the piston rod end of the telescopic cylinder (5).

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