Dental material clamping jaw
By adding a spring mechanism to the fingers of the dental material gripper, the elastic force is used to prevent the material from sticking to the gripper fingers, thus solving the problem of material adhesion in the prior art and achieving the effect of stable clamping and releasing of materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA INTELLIGENT ROBOT RES INST CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-08
AI Technical Summary
Existing dental material grippers are prone to causing materials to stick to the gripper fingers when gripping materials, lacking anti-sticking function.
A spring mechanism, including a spring and a limiting slide, is added to the gripper fingers. The spring force allows the material to break free from the gripper fingers when they open, preventing adhesion.
It effectively prevents materials from sticking to the gripper fingers, ensuring stable material placement and improving the stability of the gripping process.
Smart Images

Figure CN224209974U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gripper technology, and in particular to a dental material gripper. Background Technology
[0002] Existing dental material grippers include servo-driven electric grippers and gripper fingers. When the servo-driven electric gripper moves the two gripper fingers close together, it can close to clamp the material. When the servo-driven electric gripper moves the two gripper fingers away, it can release the gripping of the material. However, since the gripper fingers in the existing technology are single rod-shaped objects, they lack anti-adhesion function. During the gripping process, the material may stick to the gripper fingers. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a dental material gripper that has the advantage of preventing material from sticking to the gripper fingers.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A dental material gripper, the dental material gripper comprising:
[0006] Servo-controlled electric gripper;
[0007] The gripper fingers are provided in two symmetrically arranged on the servo electric gripper, and the servo electric gripper is used to drive the two gripper fingers to move away from each other or closer together;
[0008] Positioning pin, which is disposed on the gripper fingers, is used for positioning the material;
[0009] A feeding mechanism is provided to prevent material from sticking to the gripper fingers.
[0010] Preferably, the servo gripper has two T-shaped grooves distributed from top to bottom, and T-shaped sliders are slidably installed inside the two T-shaped grooves. The ends of the two T-shaped sliders away from the servo gripper are fixedly installed with mounting plates, and the two gripper fingers are respectively fixedly installed on the two mounting plates.
[0011] Furthermore, four positioning pins are provided, and the four positioning pins are divided into two groups and fixedly installed on the side surface of the two gripper fingers that are close to each other.
[0012] Furthermore, the spring material mechanism is provided in four parts, and the four spring material mechanisms are divided into two groups and fixedly installed on the side surface of the two gripper fingers that are close to each other.
[0013] Furthermore, each of the aforementioned spring material mechanisms includes a spring cavity formed on the gripper fingers, a spring installed inside the spring cavity, a limiting slide plate slidably installed inside the spring cavity, a connecting post fixedly installed on the side of the limiting slide plate away from the spring, and a spring material post fixedly installed on the end of the connecting post away from the limiting slide plate.
[0014] Furthermore, one end of the spring is fixedly connected to the inner wall of the gripper finger, and the other end of the spring is fixedly connected to the limiting slide plate.
[0015] Furthermore, the gripper fingers are provided with circular holes for the connecting post to pass through, and the end of the connecting post away from the limiting slide plate passes through the circular hole and is located outside the gripper fingers.
[0016] The beneficial effects of this utility model are:
[0017] This invention adds a spring-loaded mechanism to the gripper fingers. When the dental material gripper is in use, the material is held by the two gripper fingers. When the two gripper fingers are opened, the spring-loaded mechanism can give the material an elastic force to free the material from the gripper fingers, thereby preventing the material from sticking to the gripper fingers and playing a role in stabilizing the release of the material. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of this utility model.
[0020] Figure 2 This is a side view of Embodiment 1 of the present utility model.
[0021] Figure 3 This is a top view of Embodiment 1 of the present invention.
[0022] Figure 4 This is a front view schematic diagram of Embodiment 1 of this utility model.
[0023] Figure 5 This is a partial cross-sectional schematic diagram of the gripper fingers in Embodiment 2 of this utility model.
[0024] The markings in the diagram are as follows: 1. Servo electric gripper; 2. Gripper finger; 3. Positioning pin; 4. Feeding mechanism; 5. T-slider; 6. Mounting plate; 7. Connecting plate; 8. T-slide; 401. Spring; 402. Limiting slide plate; 403. Connecting column; 404. Feeding column. Detailed Implementation
[0025] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0027] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0028] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0029] Example 1
[0030] Please see Figure 1-4 As shown, a dental material gripper includes a servo electric gripper 1, gripper fingers 2, positioning pins 3, and a springing mechanism 4. Two gripper fingers 2 are symmetrically arranged on the servo electric gripper 1, and the servo electric gripper 1 drives the two gripper fingers 2 to move away from or towards each other. The positioning pins 3 are arranged on the gripper fingers 2 and are used for positioning the material. The springing mechanism 4 is used to prevent the material from sticking to the gripper fingers 2.
[0031] This invention adds a spring-loaded mechanism 4 to the gripper fingers 2. When the dental material gripper is in use, the material is held by the two gripper fingers 2. When the two gripper fingers 2 are opened, the spring-loaded mechanism 4 can give the material an elastic force so that the material can get rid of the gripper fingers 2, thereby preventing the material from sticking to the gripper fingers 2 and playing a role in stabilizing the release of the material.
[0032] A connecting plate 7 is also fixedly installed on the servo electric gripper 1. The connecting plate 7 is used to connect with the robotic arm so that the dental material gripper is installed on the robotic arm.
[0033] The servo gripper 1 has two T-shaped grooves 8 distributed from top to bottom. T-shaped sliders 5 are slidably installed inside the two T-shaped grooves 8. Mounting plates 6 are fixedly installed at the ends of the two T-shaped sliders 5 away from the servo gripper 1. The two gripper fingers 2 are fixedly installed on the two mounting plates 6 respectively.
[0034] Mounting plate 6 is similar to an L-shaped plate, and the protruding ends of the two mounting plates 6 are at the same height. This ensures that the two gripper fingers 2 are at the same height. At the same time, when the servo electric gripper 1 moves the two gripper fingers 2 closer or further apart, the two gripper fingers 2 can synchronously drive the mounting plate 6 and the T-shaped slider 5 to slide inside the T-shaped groove 8. With the cooperation of the T-shaped slider 5 and the T-shaped groove 8, the movement of the gripper fingers 2 can be guided, making the gripper fingers 2 move more smoothly and preventing the material held by the gripper fingers 2 from remaining in a balanced state. This makes it easier for the spring material mechanism 4 to give the material an elastic force to get rid of the gripper fingers 2 when the two gripper fingers 2 are opened later.
[0035] There are four positioning pins 3. The four positioning pins 3 are divided into two groups and fixedly installed on the side surface of the two gripper fingers 2 that are close to each other. Two sides of the material are in contact with the side surface of the two gripper fingers 2 that are close to each other, and the other two sides of the material are in contact with the two positioning pins 3 set in front and behind. The four positioning pins 3 are used to position and grip the material.
[0036] There are four spring-loaded mechanisms 4. The four spring-loaded mechanisms 4 are divided into two groups and fixedly installed on the side surface of the two gripper fingers 2 that are close to each other. The spring-loaded mechanism 4 is a spring plunger. When the two gripper fingers 2 hold the material, the four corners of the material contact the four positioning pins 3 respectively, and the two sides of the material will apply a pressure to the spring plunger. The spring plunger is in a compressed state. When the two gripper fingers 2 are opened, the spring plunger can give the material an elastic force so that the material can get rid of the gripper fingers 2, thereby preventing the material from sticking to the gripper fingers 2 and playing a role in stabilizing the release of the material.
[0037] Example 2
[0038] The similarities between this embodiment and Embodiment 1 will not be repeated here. The differences between this embodiment and Embodiment 1 are as follows: Figure 5 As shown, each spring material mechanism 4 includes a spring cavity opened on the gripper finger 2, a spring 401 installed inside the spring cavity, a limiting slide plate 402 slidably installed inside the spring cavity, a connecting post 403 fixedly installed on the side of the limiting slide plate 402 away from the spring 401, and a spring material post 404 fixedly installed on the end of the connecting post 403 away from the limiting slide plate 402.
[0039] One end of the spring 401 is fixedly connected to the inner wall of the gripper finger 2, and the other end of the spring 401 is fixedly connected to the limiting slide plate 402;
[0040] The gripper finger 2 has a circular hole for the connecting post 403 to pass through. The end of the connecting post 403 away from the limiting slide plate 402 passes through the circular hole and is located outside the gripper finger 2.
[0041] When the two gripper fingers 2 grip the material, the four corners of the material contact the four positioning pins 3 respectively, and the two sides of the material will apply pressure to the spring column 404. After the spring column 404 is squeezed, it drives the connecting column 403 to move away from the material. During the movement, the connecting column 403 can drive the limiting slide plate 402 to slide inside the spring cavity and squeeze the spring 401. The spring 401 is squeezed and is in a compressed state.
[0042] When the two gripper fingers 2 are opened, the spring 401 is no longer compressed and begins to return to its original state. Under the restoring force of the spring 401, the limiting slide plate 402, the connecting column 403 and the spring column 404 can drive the material to have an elastic force so that the material gets rid of the gripper fingers 2, thereby preventing the material from sticking to the gripper fingers 2 and playing the role of stabilizing the release of the material.
[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A dental material gripper, characterized in that: The dental material gripper includes: Servo-controlled electric gripper (1); The gripper fingers (2) are provided in two, and the two gripper fingers (2) are symmetrically arranged on the servo electric gripper (1). The servo electric gripper (1) is used to drive the two gripper fingers (2) to move away from each other or close to each other. Positioning pin (3), the positioning pin (3) is disposed on the gripper finger (2), the positioning pin (3) is used for positioning the material; The material ejection mechanism (4) is used to prevent the material from sticking to the gripper fingers (2).
2. The dental material gripper according to claim 1, characterized in that, The servo electric gripper (1) has two T-shaped grooves (8) distributed from top to bottom. T-shaped sliders (5) are slidably installed inside the two T-shaped grooves (8). Mounting plates (6) are fixedly installed at the ends of the two T-shaped sliders (5) away from the servo electric gripper (1). The two gripper fingers (2) are fixedly installed on the two mounting plates (6) respectively.
3. The dental material gripper according to claim 1, characterized in that, The positioning pins (3) are provided in four groups of two, which are respectively fixedly installed on the side surface of the two gripper fingers (2) that are close to each other.
4. The dental material gripper according to claim 1, characterized in that, The spring material mechanism (4) is provided in four parts, and the four spring material mechanisms (4) are divided into two groups and fixedly installed on the side surface of the two gripper fingers (2) that are close to each other.
5. The dental material gripper according to claim 4, characterized in that, Each of the aforementioned spring mechanism (4) includes a spring cavity opened on the gripper finger (2), a spring (401) installed inside the spring cavity, a limiting slide plate (402) slidably installed inside the spring cavity, a connecting post (403) fixedly installed on the side of the limiting slide plate (402) away from the spring (401), and a spring post (404) fixedly installed on the end of the connecting post (403) away from the limiting slide plate (402).
6. The dental material gripper according to claim 5, characterized in that, One end of the spring (401) is fixedly connected to the inner wall of the gripper finger (2), and the other end of the spring (401) is fixedly connected to the limiting slide plate (402).
7. The dental material gripper according to claim 6, characterized in that, The gripper finger (2) has a circular hole for the connecting post (403) to pass through. The end of the connecting post (403) away from the limiting slide plate (402) passes through the circular hole and is located outside the gripper finger (2).