Quick change fixture

Abstract

The utility model provides a quick change clamp, including upper and lower hinged upper clamp body and lower clamp body, the front side bottom of upper clamp body is equipped with at least one for the column, is equipped with for the column groove on the column, the inside of the front side of lower clamp body is equipped with rotatable pivot, the front side top of lower clamp body is equipped with at least one containing groove, is equipped with at least one side groove on the pivot, the pivot's side groove place shaft body corresponds in containing groove. Through operating counterclockwise rotation pivot of lower clamp body can be to the column for the upper clamp body is limited, to lock the closure of upper clamp body on lower clamp body to realize the disc in the inside of lower clamp body is clamped and fixed, and through operating clockwise rotation pivot of lower clamp body can be to the column for the upper clamp body cancel the limit, to realize the upper clamp body cancel locking on lower clamp body. This quick change clamp has practical and convenient advantage, can supply user fast operation closure and fast operation open, to facilitate user to install or pick up the disc.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, especially relates to a quick-change clamp. BACKGROUND

[0002] The prosthesis carving machine is equipped with a mechanical hand, the mechanical hand is installed with a clamp, the clamp is used to clamp and fix the tray with the prosthesis embryo, the mechanical hand can drive the clamp to move to drive the prosthesis embryo to accept the required feeding and discharging movement when being carved by the prosthesis carving machine, and the user can complete the installation or dismounting of the tray with the prosthesis embryo by operating the closing or opening of the clamp.

[0003] At present, when the tray is placed in the clamp, the clamp is locked and closed by using fasteners to clamp and fix the tray, so that the user needs to operate the fasteners to realize the installation or dismounting of the tray in the clamp, and the operation of the fasteners is laborious and time-consuming, so the existing clamp cannot be operated by the user to realize quick closing and opening to adapt to the installation and dismounting of the tray, and therefore needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a quick-change clamp to solve the problem that when the tray is placed in the clamp, the clamp is locked and closed by using fasteners to clamp and fix the tray, so that the user needs to operate the fasteners to realize the installation or dismounting of the tray in the clamp, and the operation of the fasteners is laborious and time-consuming, so the existing clamp cannot be operated by the user to realize quick closing and opening to adapt to the installation and dismounting of the tray.

[0005] The utility model solves technical problems by adopting the following technical scheme: a quick-change clamp, comprising an upper clamp body and a lower clamp body hingedly connected, at least one clamping column is fixedly arranged on the front bottom of the upper clamp body, a clamping groove is arranged on the clamping column, a clamping space is arranged on the inner side of the lower clamp body, a rotatable rotating shaft is arranged on the inner front side of the lower clamp body, at least one containing groove is arranged on the front top of the lower clamp body, at least one side groove is arranged on the rotating shaft, and the side groove of the rotating shaft is located in the containing groove.

[0006] In some embodiments, one end of the rotating shaft extends outward from one end of the front side of the lower clamp body and has a handle, and the other end of the rotating shaft extends outward from the other end of the front side of the lower clamp body and has a limiting block.

[0007] In some embodiments, two sleeves are fixedly arranged on the inner front side of the lower clamp body, and the two sleeves are respectively sleeved on the two ends of the rotating shaft located on the inner front side of the lower clamp body.

[0008] In some embodiments, the inner side wall of the lower clamp body is provided with a side wall, and the bottom of the upper clamp body is provided with an elastic layer.

[0009] In some embodiments, the material of the elastic layer is silica gel or rubber.

[0010] In some embodiments, the two ends of the upper clamp body are respectively connected with the two ends of the lower clamp body through a hinge shaft, and the hinge shaft is provided with a torsion spring.

[0011] In some embodiments, the front side of the lower clamp body is provided with a plurality of screw holes.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In the utility model, the clamping column of the upper clamp body is limited by rotating the rotating shaft of the lower clamp body counterclockwise, so that the upper clamp body is locked and closed on the lower clamp body, so that the tray inside the lower clamp body is clamped and fixed; and the clamping column of the upper clamp body is cancelled by rotating the rotating shaft of the lower clamp body clockwise, so that the upper clamp body is cancelled on the lower clamp body, so that the tray inside the lower clamp body is taken out. The quick-change clamp has the advantages of being practical and convenient, and can be quickly operated and closed and quickly operated and opened by the user, so as to facilitate the user to install or disassemble the tray. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the quick-change clamp;

[0015] Figure 2 It is a schematic diagram of the structure of the lower clamp body of the quick-change clamp in the section state;

[0016] Figure 3 It is a schematic diagram of the overall structure of the quick-change clamp;

[0017] Figure 4 It is a schematic diagram of the structure of the quick-change clamp and the tray;

[0018] Figure 5 It is a schematic diagram of the structure of the quick-change clamp and the tray;

[0019] Figure 6 It is a schematic diagram of the structure of the quick-change clamp and the tray;

[0020] Explanation of reference signs:

[0021] 100. Quick-change clamp; 10. Upper clamp body; 101. Card supply post; 1011. Card supply slot; 102. Elastic layer; 20. Lower clamp body; 201. Receiving groove; 202. Rotating shaft; 2021. Side groove; 2022. Handle; 2023. Limiting block; 203. Sleeve; 204. Screw hole; 205. Clamping space; 206. Side wall; 30. Hinge shaft; 301. Torsion spring; 200. Material tray; 2001. Upper ring groove; 2002. Lower ring groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0024] Please refer to the following: Figures 1 to 6 As shown, Figure 1 A schematic diagram of the overall structure of the quick-change fixture 100; Figure 2 This is a structural schematic diagram of the lower clamping body 20 of the quick-change clamp 100 in cross-sectional view. Figure 3 A schematic diagram of the split structure of the quick-change fixture 100; Figure 4 A schematic diagram of the quick-change fixture 100 and the material tray 200;

[0025] Figure 5 A schematic diagram of the quick-change fixture 100 with the material tray 200 loosened; Figure 6 This is a schematic diagram of the quick-change fixture 100 holding the material tray 200.

[0026] This utility model provides the following technical solution: a quick-change clamp 100, including an upper clamping body 10 and a lower clamping body 20 that are hinged together; at least one card supply post 101 is fixedly provided at the bottom front side of the upper clamping body 10, and a card supply groove 1011 is provided on the card supply post 101; a clamping space 205 is provided on the inner side of the lower clamping body 20, a rotatable rotating shaft 202 is provided inside the front side of the lower clamping body 20, at least one receiving groove 201 is provided on the top front side of the lower clamping body 20, at least one side groove 2021 is provided on the rotating shaft 202, and the shaft body at the side groove 2021 of the rotating shaft 202 is located in the receiving groove 201; when the upper clamping body 10 and the lower clamping body 20 are closed, the card supply post 101 is inserted into the receiving groove 201, and the shaft body at the side groove 2021 of the rotating shaft 202 abuts against the card supply groove 1011 on the card supply post 101.

[0027] The quick-change clamp 100 provided in this embodiment can be installed in the robotic arm of a dental prosthesis carving machine in the prior art. The quick-change clamp 100 is used to hold the material tray 200, and the material tray 200 is used to support the dental prosthesis blank. The robotic arm can drive the dental prosthesis blank to accept the required loading and unloading movement when the dental prosthesis carving machine is carving by transmitting the quick-change clamp 100.

[0028] In the quick-change clamp 100 provided in this embodiment, when clamping the material tray 200, the material tray 200 is placed in the clamping space 205 inside the lower clamp body 20. At this time, the lower clamp body 20 supports the bottom of the material tray 200. Then, the upper clamp body 10 is manually pressed downward so that the card supply post 101 is inserted into the corresponding groove 201 on the lower clamp body 20, and the downward pressing state of the upper clamp body 10 is maintained. At this time, the upper clamp body 10 and the lower clamp body 20 are in a closed state. Then, the rotating shaft 202 is rotated counterclockwise by 90° so that the side groove 2021 on the rotating shaft 202 avoids the card supply post 101, and the shaft body at the side groove 2021 of the rotating shaft 202 abuts against the card supply groove 1011 on the card supply post 101. Figure 3(As shown in the state), at this time, the manual downward pressing of the upper clamp 10 can be canceled, so that the rotating shaft 202 of the lower clamp 20 limits the card supply post 101 of the upper clamp 10, so as to lock the upper clamp 10 onto the lower clamp 20. Then the upper clamp 10 presses against the top of the material tray 200 to clamp and fix the material tray 200 in the clamping space 205 inside the lower clamp 20. When canceling the clamping tray 200, the rotating shaft 202 is rotated 90° clockwise so that the shaft body at the side groove 2021 of the rotating shaft 202 disengages from the card slot 1011 of the card supply post 101, and the side groove 2021 of the rotating shaft 202 just corresponds to accommodate the card supply post 101. Then the rotating shaft 202 of the lower clamping body 20 cancels the restriction on the card supply post 101 of the upper clamping body 10. When the upper clamping body 10 is opened, the upper clamping body 10 drives the card supply post 101 to move upward and disengage from the side groove 2021 of the rotating shaft 202. Thus, the upper clamping body 10 cancels the locking of the tray 200 inside the lower clamping body 20, and the user can take out the tray 200 inside the lower clamping body 20. In this invention, rotating the shaft 202 of the lower clamp 20 counterclockwise limits the feeding pin 101 of the upper clamp 10, thereby locking the upper clamp 10 onto the lower clamp 20 and clamping and fixing the material tray 200 inside the lower clamp 20. Conversely, rotating the shaft 202 of the lower clamp 20 clockwise removes the limiting of the feeding pin 101 of the upper clamp 10, thus releasing the upper clamp 10 from the lower clamp 20 and allowing the material tray 200 inside the lower clamp 20 to be removed. This quick-change clamp 100 is practical and convenient, allowing users to quickly close and open it, facilitating the installation and removal of the material tray 200.

[0029] In some embodiments, one end of the rotating shaft 202 extends outside the front end of the lower clamping body 20 and has a handle 2022, and the other end of the rotating shaft 202 extends outside the other front end of the lower clamping body 20 and has a limiting block 2023.

[0030] In specific implementation: When the user rotates the shaft 202 of the lower clamp 20 to limit or release the card supply post 101 of the upper clamp 10, the user can rotate the shaft 202 by rotating the handle 2022 on the front end of the lower clamp 20. When the shaft 202 rotates, the limiting block 2023 on the other front end of the lower clamp 20 rotates along with the shaft 202. This design allows the user to easily rotate the shaft 202 by rotating the handle 2022.

[0031] In some embodiments, two sleeves 203 are fixedly provided inside the front side of the lower clamping body 20, and the two sleeves 203 are respectively sleeved on the two ends of the rotating shaft 202 located inside the front side of the lower clamping body 20.

[0032] In specific implementation: When it is necessary to maintain the angle of the rotating shaft 202 after it has been rotated 90° counterclockwise or 90° clockwise, two sleeves 203 respectively fit over the two ends of the rotating shaft 202 located inside the front side of the lower clamp 20. The two sleeves 203 work together to provide friction to the shaft of the rotating shaft 202 to maintain the angle after it has been rotated 90° counterclockwise or 90° clockwise. When the user applies external force to the rotating shaft 202 by turning the handle 2022, this external force is greater than the friction provided by the two sleeves 203 to the rotating shaft 202, so the rotating shaft 202 can be rotated. Therefore, when the rotating shaft 202 is maintained at the rotated angle by the friction provided by the two sleeves 203, it does not affect the user's ability to operate the rotating shaft 202 by turning the handle 2022 to apply external force. Through this setting, the angle of the rotating shaft 202 after rotation can be maintained by the friction provided by the two sleeves 203.

[0033] In some embodiments, the inner sidewall of the lower clamp 20 is provided with a sidewall 206, and the bottom of the upper clamp 10 is provided with an elastic layer 102.

[0034] In specific implementation: This quick-change clamp 100 is used to clamp the material tray 200 of the prior art. The top edge of the material tray 200 is provided with an upper annular groove 2001, and the bottom edge of the material tray 200 is provided with a lower annular groove 2002. When the material tray 200 is clamped and fixed by the cooperation of the upper clamping body 10 and the lower clamping body 20, the side wall 206 of the inner side wall of the lower clamping body 20 abuts against the lower annular groove 2002 at the bottom of the material tray 200, and the rear side of the elastic layer 102 at the bottom of the upper clamping body 10 abuts against the upper annular groove 2001 at the top of the material tray 200. The elastic layer 102 is elastic when in contact with the material tray 200 and will not cause frictional damage to the material tray 200. Through this arrangement, the cooperation of the upper clamping body 10 and the lower clamping body 20 can clamp and fix the material tray 200.

[0035] In some embodiments, the elastic layer 102 is made of silicone or rubber.

[0036] In practice: the elastic layer 102 is made of silicone or rubber, which has elasticity so that the elastic layer 102 will not cause friction damage when it comes into contact with the tray 200.

[0037] In some embodiments, the two ends of the upper clamping body 10 are respectively connected to the two ends of the lower clamping body 20 via a hinge shaft 30, and the hinge shaft 30 is equipped with a torsion spring 301.

[0038] In practice: when the user locks the upper clamp 10 onto the lower clamp 20, the torsion spring 301 mounted on the hinge shaft 30 is compressed and contracted. When the lower clamp 20 releases the lock on the upper clamp 10, the torsion spring 301 on the hinge shaft 30 expands and rebounds, thus supporting and driving the upper clamp 10 to automatically spring open from the lower clamp 20. This design improves the ease of opening the upper clamp 10 from the lower clamp 20.

[0039] In some embodiments, the front side of the lower clamp 20 is provided with a plurality of screw holes 204.

[0040] In practical implementation: When it is necessary to install this quick-change fixture 100 on the robot arm of the dental prosthesis engraving machine, the screw holes 204 on the lower clamp 20 can be fixed to the mounting position of the robot arm with screws. This setting makes it convenient to install this quick-change fixture 100 on the robot arm of the dental prosthesis engraving machine.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-change fixture, characterized in that, The device includes an upper clamping body and a lower clamping body that are hinged together. At least one card-supplying post is fixedly provided at the bottom front side of the upper clamping body, and the card-supplying post has a card-supplying groove. The lower clamping body has a clamping space on its inner side, a rotatable shaft is provided inside the front side of the lower clamping body, and at least one receiving groove is provided at the top front side of the lower clamping body. The shaft has at least one side groove, and the shaft body at the side groove of the shaft is located in the receiving groove. When the upper clamping body and the lower clamping body are closed, the card-supplying post is inserted into the receiving groove, and the shaft body at the side groove of the shaft abuts against the card-supplying groove on the card-supplying post.

2. The quick-change fixture according to claim 1, characterized in that, One end of the rotating shaft extends outside the front end of the lower clamp and has a handle, while the other end of the rotating shaft extends outside the other front end of the lower clamp and has a limiting block.

3. The quick-change fixture according to claim 1, characterized in that, Two sleeves are fixedly provided inside the front side of the lower clamping body, and the two sleeves are respectively sleeved on the two ends of the rotating shaft located inside the front side of the lower clamping body.

4. The quick-change fixture according to claim 1, characterized in that, The inner sidewall of the lower clamp is provided with a sidewall, and the bottom of the upper clamp is provided with an elastic layer.

5. The quick-change fixture according to claim 4, characterized in that, The elastic layer is made of silicone or rubber.

6. The quick-change fixture according to claim 1, characterized in that, The two ends of the upper clamp are respectively connected to the two ends of the lower clamp via hinge shafts, and the hinge shafts are equipped with torsion springs.

7. The quick-change fixture according to claim 1, characterized in that, The front side of the lower clamp is provided with several screw holes.

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